ARRANGEMENT TO CONTROL THE ROTATIVE MACHINING PROCESS OF CHIP REMOVAL FROM A PART IN PROCESSING AND

专利摘要:
Arrangement for controlling the chip removal rotary machining process of a workpiece and a cutting tool for chip removal rotary machining The present invention deals with an arrangement for controlling the chip removal rotary machining process of a part in process (w) comprising a monitoring system for rotary machining of chip removal, comprising at least one surface acoustic wave (saw) sensor (48; 148; 248) and a first antenna (50; 150; 250) arranged to be mounted on a cutting tool (1; 101; 201) for rotary machining. the first antenna being connectable to at least one sensor (saw). the monitoring system comprises at least a second antenna (52) arranged for wireless communication with the first antenna. the sensor (saw) and the first antenna are arranged to transmit at least one parameter from a group of parameters consisting of voltage, temperature and pressure detected by the sensor (saw) to the second antenna. the monitoring system comprises a processing unit (60) connected to the second antenna, wherein the processing unit is arranged to transmit the interrogation signal and transmit power to the first transmit antenna to the first antenna and to the sensor ( saw) through the second antenna. the processing unit is arranged to receive said at least one parameter detected through the second antenna.
公开号:BR102013030002B1
申请号:R102013030002-0
申请日:2013-11-22
公开日:2021-09-08
发明作者:Sture Sjöö；Peter Eriksson；Martin Helgoson
申请人:Sandvik Intellectual Property Ab；
IPC主号:

专利说明:

Technical Field of the Invention
[001] The present invention is related to an arrangement to control the chip removal rotary machining process of a part in process, for example, a part of titanium, steel, aluminum, cast materials or any other material, in which the arrangement comprises a monitoring system to monitor rotary chip removal machining. Furthermore, the present invention relates to a cutting tool for machining chip removal from a workpiece, for example, of the type as per the classification indicated above. The cutting tool comprises a tool body which is connectable to a support element or a rotating rod. The tool body defines a central axis, being provided with at least one cutting edge or at least one seat for receiving a cutting insert, which has at least one cutting edge. Background of the Invention
[002] In general, a cutting tool for rotary machining of chip removal of a part being processed, for example, a part of titanium, steel, aluminum, cast materials or any other material, comprises a tool body provided with a or a plurality of cutting edges or cutting inserts, each of said cutting inserts having at least one cutting edge. Each cutting insert is usually mounted in a seat or pocket provided in the tool body. The tool body defines a central axis or axis of rotation and is generally connectable to a support element or a rotating shaft. When drilling, the tool body is generally rotated by rotating the shank or support element, which supports the tool body, while the workpiece is stationary or is advanced in a forward direction. When performing profile or contour milling, the tool body can, for example, be rotated in a direction of rotation around its axis of rotation, while the workpiece is advanced relative to the tool body in a direction of advance. When performing turning and also some type of milling, in general, the workpiece is rotated, and the tool body is kept stationary and supported by a support element. Usually, a shim is provided between the cutting insert and the seat surface of said seat, in order to protect the tool body, in case the stress on the cutting insert becomes too great. A shim is an element that is easily changed and a modification of the entire tool body is therefore avoided.
[003] In the prior art, different monitoring systems are suggested to monitor the rotary chip removal machining of a workpiece.
[004] US Patent No. 7,289,873 discloses a sensor system for a cutting machine tool comprising a sensor arrangement, which measures a force and/or a torque and/or the sound of the tool body within the machine. cutting tool, a power supply unit, which inductively provides power for supplying the sensor array of the cutting machine tool out of a magnetic alternating field, and a data transmission unit, which transmits data wireless correlates to a value measured by the sensor array.
[005] U.S. Patent No. 7,883,303 describes a machine tool shank structure, capable of monitoring a processing state, including a shank body, a rotating chuck, a cutter base and an internal inspection device. The rotating mandrel features a chamber and the internal inspection device is arranged in the chamber. The chips inspected in the internal inspection device are directly discarded in the cutter base. Processing parameters are transmitted to an external information device through a wireless transmission module, in said internal inspection device.
[006] US patent document No. 2008/0105094 discloses a machine tool control method using a machine tool to carry out a production process of a job having a cutting implement for machining a part accordingly with the process. A sensing device is provided on the cutting implement to detect at least one process condition.
[007] The US patent document No. 2009/0235763 describes a force measuring system integrated in a chuck, for determining the cutting forces at the cutting tool tip of a rotary tool, for example, a drill or a milling cutter. having a sensor as well as a measured value processing station. The sensor is designated as a tension sensor, which is placed on a tool holder element of a machine tool.
[008] The patent document WO 2009/117396 discloses a tool support element, including the body, a processor, disposed with the body, and a transceiver, disposed with the body and in communication with the processor. The transceiver is structured to communicate with the external receiving device. A cutting unit has a certain number of sensors and the processor is structured to communicate with the sensors.
[009] US Patent No. 7,710,287 describes a sensor system for a machine tool, comprising a sensor with a measuring instrument that measures a physical quantity occurring within the machine tool, with a first supply of energy to supply the sensor measuring instrument, wherein the first power supply receives electrical energy from a surrounding electromagnetic field via a wireless mode, and further comprising a battery for supplying power to the sensor measuring instrument.
[0010] US Patent No. 8,083,446 discloses a shank for a machine tool for machining parts, wherein a data acquisition element is provided for recording operating data and/or shank status data, and in that the data acquisition element is in the form of a radio chip and readable by the radio.
[0011] U.S. Patent No. 8,080,918 describes a device and a method for controlling the machining of parts, through the use of piezoceramic transducers.
[0012] US patent document No. 2009/0175694 discloses a system, including a cutting tool, which includes a tool body, and an integrated circuit chip firmly mounted within the tool body, and capable of being read. and then recorded.
[0013] U.S. Patent No. 6,297,747 describes a tool support element having a sensor for measuring an operational parameter of the tool support element or tool during operation. The sensor is a surface acoustic wave sensor, which operates according to acoustic wave principles, and its measured value signals are readable in a non-contact mode using radio waves.
[0014] Patent document DE 10.2007/036002 discloses a monitoring device for a processing tool, comprising an oscillation device and an oscillation detector which are connected to a sensor, and which form a surface wave sensor.
[0015] Patent DE 10227677 describes a method for wirelessly monitoring a part of the machine, using a passive conductive support element structure. A passive sensor can be thought of as a surface wave sensor. Invention Summary
[0016] The present inventors have identified the need for an efficient monitoring and control of a rotary machining method for removing chips from a part in process, in order to improve the rotary machining for removing chips from said part.
[0017] The purpose of the present invention is to improve the rotary machining process for removing chips from a part under processing, for example, a part of titanium, steel, aluminum, cast material or any other material.
[0018] The aforementioned objective of the present invention is achieved by providing a provision to control the chip removal rotary machining process of a workpiece, wherein the arrangement comprises a monitoring system to monitor the removal rotary machining of chips. The monitoring system comprises at least one surface acoustic wave sensor, arranged to be mounted on a cutting tool, for rotary machining to remove chips from the workpiece. The monitoring system comprises at least one first antenna arranged to be mounted on the cutting tool, said at least one first antenna being connectable to said at least one surface acoustic wave sensor. The monitoring system comprises at least one second antenna, wherein said at least one first antenna is arranged for wireless communication with said at least one second antenna. Each surface acoustic wave sensor is arranged to detect at least one parameter from a group of parameters consisting of voltage, temperature and pressure. Said at least one surface acoustic wave sensor and said at least one first antenna are arranged to transmit said at least one sensed parameter to the second antenna in response to an interrogation signal received by the first antenna from the second antenna. . Said at least one surface acoustic wave sensor and said at least one first antenna are arranged to receive energy from the interrogation signal in order to transmit said at least one sensed parameter to the second antenna. The monitoring system further comprises a processing unit connected to at least one second antenna. The processing unit is arranged to transmit the interrogation signal and transmission energy to said at least one first antenna and to said at least one surface acoustic wave sensor, via said at least one second antenna. The processing unit is arranged to receive said at least one parameter detected via said at least one second antenna. The arrangement comprises a control system arranged to communicate with the monitoring system, wherein the control system is arranged to control, at least partially, the rotary chip removal machining of the workpiece, based on said at least a detected parameter.
[0019] Through the arrangement according to the present invention, the control of rotary machining of chip removal from the workpiece is improved. Safe, predictable and efficient machining is provided. By arrangement in accordance with the present invention, a feedback control of the chip removal rotary machining can be provided, for example, the control system can be arranged to take action or control the machining by means of process data feedback . A safe, predictable and efficient closed-loop machining process is provided by this provision, which, in addition, allows the combination of data from different parts, such as, for example, the cutting tool and the machine in which the tool cutting is arranged. These data are processed in the processing unit and/or in a process monitoring unit, by calculating or determining, for example, a contact time and/or force on the cutting tool based on the sensor data, in combination , for example, with the force, torque and power of the machine to the cutting tool. The processed data can then be evaluated in the processing unit and/or in a process monitoring unit, by comparing them with threshold values, whereby a range of possible responses can be triggered by means of the control system and/or a control/action unit. A response can be an alarm in combination with a warning for manual adjustment. Another response may include automatic or semi-automatic adjustments of cutting data and/or other machine-related parameters, such as moving the cutting tool to a more favorable position in relation to the part being processed. Also, it is possible by means of the present provision to collect data from the cutting machine/tool and transmit it to a distant location, for example, from the manufacturer of the cutting machine/tool, in order to provide an operator or customer with the possibility extended support and maintenance of the cutting machine/tool. The manufacturer can also provide an early analysis and processing of the data due to practical experience and thus provide an improved monitoring/control of the machining operation. Examples of control of rotary machining of chip removal from the workpiece, at least partially based on at least one detected parameter, are disclosed in the detailed description of the modalities. The surface acoustic wave sensor does not require a power supply circuit, rather it extracts transmission energy, which is required for transmission of said at least one detected parameter or value signal, to the second antenna, from the interrogation signal. , which can be transmitted by radio waves from the second antenna, being received by the surface acoustic wave sensor. The interrogation signal can be a high-frequency interrogation signal. Thus, the tool does not need to be provided with any bulky energy or power source, such as, for example, a battery or an inductive power supply device, which may be defective, so reliable and durable monitoring and monitoring systems are provided. control.
[0020] A passive surface acoustic wave sensor, per se, which can be interrogated in a wireless mode, is previously known and, for example, disclosed in U.S. Patent No. 6,144,332. A surface acoustic wave sensor can be small in size and thus any bulky configuration is avoided. Consequently, through the present invention, a compact and flexible monitoring system is provided to monitor a rotary chip removal machining process, and a compact and flexible control system, in which the amount of supporting elements and electrical conductors is reduced . A surface acoustic wave sensor can be mounted on the cutting tool, in a position in close proximity to the region of the cutting tool where at least one parameter is most efficiently detected, providing more accurate values of said at least one parameter. Through the most accurate values of said at least one parameter, the control system can more efficiently control the rotary chip removal machining. Furthermore, by mounting the surface acoustic wave sensor on the cutting tool, said at least one detected parameter is associated with that specific cutting tool, whereby said at least detected parameter of the specific cutting tool can be connected or correlated with other data from that specific cutting tool. By means of the non-bulky and compact structure of said at least one surface acoustic wave sensor and said at least one first antenna, the structure of said at least one surface acoustic wave sensor and said at least one first antenna does not decrease cutting tool performance and does not impair control of rotary chip removal machining. Said at least one surface acoustic wave sensor and said at least one first antenna can be mounted on the cutting tool without any further reconstruction of the cutting tool and without any reconstruction of the shank or support element of the cutting tool and the support of the cutting tool. rod or supporting element of the machine, so the monitoring and control systems are easy to install in the rotary chip removal systems already manufactured. By the arrangement according to the present invention, the communication between the parameter detection and the control system is reliable and efficient, whereby reliable and accurate control of chip removal machining is provided. Therefore, by means of the arrangement in accordance with the present invention, an improved monitoring and control of the chip removal rotary machining process of a workpiece is provided, e.g., a titanium, steel, aluminum, cast material or part. of any other material.
[0021] The cutting tool may comprise a tool body that can be connected to a support element or a rotating shank, the tool body defining a central axis and being provided with at least one cutting edge, or with at least a seat for receiving a cutting insert, which has at least one cutting edge. The control system can be arranged to control the chip removal rotary machining of the workpiece, based on at least one detected parameter.
[0022] According to an advantageous embodiment of the arrangement according to the present invention, the arrangement comprises an identification system for identifying cutting tools, wherein the identification system comprises identification means arranged to be affixed to the cutting tool, the means being arranged to provide at least identity data from the cutting tool, and wherein the monitoring system is arranged to communicate with the identification system. Through this modality, the arrangement can correlate data to a specific cutting tool in order to provide a safe, predictable and efficient machining, and the control system can perform an action more efficiently, or control the machining through process data feedback. Said at least one surface acoustic wave sensor can thus be correlated to a specific type of cutting tool. By means of this modality, the arrangement can efficiently monitor, analyze and control the rotary chip removal machining.
[0023] According to another advantageous embodiment of the arrangement according to the present invention, said arrangement comprises at least one storage memory, to store the data of at least one cutting tool, in which the identification system is arranged to communicate with at least one storage memory. The arrangement may comprise at least one database, said at least including storage memory. Alternatively, or in addition, said identifying means may comprise said at least one storage memory.
[0024] According to another advantageous embodiment of the arrangement according to the present invention, said arrangement comprises a machine arranged to machine the part in process by means of a cutting tool, the machine comprising a platform-like arrangement, arranged to support an element support or a rotating rod to which the cutting tool can be connected, wherein the control system is arranged to control said machine at least partially on the basis of said at least one detected parameter.
[0025] According to another advantageous embodiment of the arrangement according to the present invention, said at least one second antenna is mounted on said platform-like arrangement. By means of the present embodiment, an efficient assembly of said at least one second antenna, with respect to the at least one first antenna, is provided.
[0026] According to yet another advantageous embodiment of the arrangement according to the present invention, said at least one second antenna is mounted on said platform-like arrangement, so that no conductive material promotes the blocking of the wireless path between said at least a first antenna and said at least one second antenna. The machine itself, for example the platform-like arrangement, may exhibit, for example, conductive parts or objects that cause interference, which may block transmission between the first and second antennas. By means of the present modality, an efficient and reliable wireless communication between the first and second antennas is guaranteed, and thus an efficient and reliable transfer of said at least one detected parameter and the interrogation signal. The conductive material can be a metal, for example a ferrous material or object.
[0027] According to yet another advantageous embodiment of the arrangement according to the present invention, said at least one first and/or second antenna is/are made from one or a plurality of flexible materials. Through these modalities, the second antenna can be mounted in the platform-like arrangement in an efficient manner, and an efficient position can be given to ensure efficient wireless communication between the first and second antennas. By these arrangements, the first antenna can be mounted on the cutting tool in an efficient manner, and an efficient position provided to ensure efficient wireless communication between the first and second antennas.
[0028] According to another advantageous embodiment of the arrangement according to the present invention, said at least one second antenna comprises at least one micro-strip antenna, for example a connecting antenna. A micro-strip antenna can be efficiently mounted in the platform-type arrangement and given an efficient position to ensure efficient wireless communication between the first and second antennas. However, this last second antenna can comprise any other type of antenna.
[0029] The above-mentioned objective of the present invention is achieved by providing a cutting tool for rotary machining of chip removal from a workpiece. The cutting tool can comprise a tool body that can be connected to a support element or a rotating shank. The tool body defines a central axis, being provided with at least one cutting edge, or with at least one seat for receiving a cutting insert, which has at least one cutting edge. The cutting tool is provided with at least one surface acoustic wave sensor and at least one first antenna connectable to said at least one surface acoustic wave sensor. Said at least one first antenna is arranged for wireless communication with at least one second antenna. Each surface acoustic wave sensor is arranged to detect at least one parameter from a group of parameters consisting of voltage, temperature and pressure. Said at least one surface acoustic wave sensor and said at least one first antenna are arranged to transmit said at least one sensed parameter to the second antenna in response to an interrogation signal received by the first antenna from the second antenna. . Said at least one surface acoustic wave sensor and said at least one first antenna are arranged to receive energy from the interrogation signal in order to transmit said at least one sensed parameter to the second antenna.
[0030] By means of the cutting tool according to the present invention, an improved monitoring of the rotary machining of chip removal of a workpiece is obtained, whereby an improved rotary machining of chip removal of a workpiece in processing, for example, a workpiece of titanium, steel, aluminum, cast material or any other material is provided. As indicated above, the surface acoustic wave sensor does not require a current supply circuit, rather it extracts the transmission energy from the interrogation signal. Thus, the tool body does not need to be provided with any voluminous amount of energy or energy source, such as a battery.
[0031] The cutting tool can be a cutting tool for rotary machining of chip removal from a workpiece. The cutting tool can be a milling tool for milling a part, a turning tool for turning a pave and/or a punch for drilling a part. A plurality of surface acoustic wave sensors can be connected, or is connectable to the same first antenna/or antennas, or each surface acoustic wave sensor can be connected, or is connectable to its own first antenna/or antennas. The tool body can be provided with one or a plurality of seats, each seat receiving a cutting insert, which can be mounted on the seat. The cutting insert can be detachably mounted to the seat, thereby being replaceable. Alternatively, the tool body can be provided with one or a plurality of cutting edges, which can be integrated with the tool body. The tool body may be provided with a plurality of peripherally spaced cutting edges or seats.
[0032] According to an advantageous embodiment of the cutting tool according to the present invention, the tool body is provided with at least one surface acoustic wave sensor. By means of the present modality, the parameters correlated to the cutting edge or the cutting insert are efficiently detected. Alternatively, one or a plurality of shims or one or a plurality of cutting inserts mounted in the tool body may be provided with at least a surface acoustic wave sensor.
[0033] According to another advantageous embodiment of the cutting tool according to the present invention, said at least one surface acoustic wave sensor is located adjacent to at least one cutting edge or to at least one seat. By placing said at least one surface acoustic wave sensor adjacent to at least one cutting edge or at least one seat, i.e., in proximity to the cutting zone, the parameters correlated to the cutting edge or cutting insert may efficiently detected. A cutting edge or a cutting insert seat can be provided with at least two surface acoustic wave sensors. Alternatively, said at least one surface acoustic wave sensor, e.g. four surface acoustic wave sensors, may be attached to the axis of the cutting tool or to a terminal portion of the cutting tool, in order to detect or determine parameters correlated to the deflection or bending of the cutting tool. Alternatively, at least one surface acoustic wave sensor may be located adjacent to a coolant channel, which provides a coolant, e.g., a coolant during machining, e.g., close to the fluid channel orifice. to detect or determine parameters correlated with cooling, for example, the pressure of the coolant.
[0034] According to another advantageous modality of the cutting tool according to the present invention, said at least one seat is provided with at least one surface acoustic wave sensor. By mounting said at least one surface acoustic wave sensor on the seat, the parameters correlated to the cutting insert can be efficiently detected or determined.
[0035] According to another advantageous embodiment of the cutting tool according to the present invention, each seat comprises at least one seat surface, wherein the seat surface of at least one seat is provided with at least one surface acoustic wave sensor . By mounting said at least one surface acoustic wave sensor on the seat surface, parameters correlated to the cutting insert can be efficiently detected or determined.
[0036] According to another advantageous modality of the cutting tool according to the present invention, the cutting tool is arranged for milling a workpiece, in which the central axis of the tool body is a rotation axis, in which the The tool body comprises a plurality of segments, each segment comprising a plurality of peripherally spaced cutting edges or seats, each seat being arranged to receive a cutting insert, and wherein each segment is provided with at least one acoustic wave sensor. superficial. Alternatively, the cutting tool may be a milling tool, arranged for other milling operations than specific gear or toothed milling procedures, e.g., profile or contour milling procedures, etc. The cutting tool can also be a turning tool, arranged to turn a part being processed and/or a punch to drill a part that is also being machined. By the present embodiment, milling of the above-mentioned type for gear-type or cog-wheel type parts can be efficiently monitored.
[0037] According to another advantageous modality of the cutting tool according to the present invention, adjacent segments can be detachably connected to each other, whereby each segment is provided with at least one electrical connector connected to at least one acoustic wave sensor surface of the same segment, and wherein each electrical connector may be directly connected to the first antenna or may be indirectly connected to the first antenna via one or a plurality of intermediate electrical connectors, one or a plurality of intermediate segments. By providing said electrical connectors, each surface acoustic wave sensor is efficiently connected to the first antenna. A plurality of surface acoustic wave sensors can be connected to a single electrical connector, or an electrical connector can be provided for each surface acoustic wave sensor. Alternatively, the surface acoustic wave sensor can be directly connected to the first antenna, without any electrical connectors.
[0038] According to another advantageous modality of the cutting tool according to the present invention, the cutting tool comprises at least one tool element connectable to the support element or to the rotating rod, wherein the tool body is connectable to the support element or to the swivel rod through at least one tool element, wherein the tool element is provided with at least one electrical connector, wherein the tool body is provided with at least one electrical connector connected to at least one acoustic wave sensor surface, and wherein each electrical connector is directly connectable to the first antenna or indirectly connectable to the first antenna, through one or a plurality of intermediate electrical connectors. Each electrical connector can be detachably connected to the first antenna and/or detachably connected to another electrical connector. Through these modalities, the cutting tool is produced in a modular way, in which the modules are easy to assemble, providing a complete cutting tool. Said at least one tool element may be provided with at least one cutting edge or at least one seat for receiving a cutting insert, which has at least one cutting edge, or the tool element may be a tool extender without any cutting edges or seats.
[0039] According to another advantageous modality of the cutting tool according to the present invention, each segment defines a central axis and comprises a first side and a second side, the central axis of the segment extending through the first and second sides and being collinear with the central axis of the tool body, wherein the first side of each electrical connector of the segment may be detachably connected to the first antenna and/or an electrical connector of an adjacent segment, and wherein, on the second side, each segment electrical connector may be detachably connected to the first antenna and/or an adjacent segment electrical connector. Through this modality, an efficient modular concept is provided for the milling tool for specific applications, which has a plurality of detachable segments, whereby the surface acoustic wave sensors are easily and automatically connected to at least a first antenna, when the application-specific milling tool is mounted, and when the segments are connected together.
[0040] According to another advantageous embodiment of the cutting tool according to the present invention, each segment comprises a peripheral cam provided with a plurality of peripherally spaced cutting edges or seats, wherein the peripheral cam extends along a line helical, in which with respect to the direction of rotation about the axis of rotation, one of the cutting edges or seats of the peripheral cam is a leading cutting edge or a leading seat, with respect to the other cutting edges or the other seats of the segments, and wherein at least the advancing cutting edge or the advancing seat is provided with at least one adjacent surface acoustic wave sensor. The inventors of the present invention have found that the leading cutting edge or the leading cutting insert is subjected to greater stresses relative to other cutting edges or cutting inserts of the same milled segments. By detecting or determining the parameters at least correlated to the in-feed cutting edge or in-feed cutting insert, efficient monitoring of the application-specific milling of a workpiece is provided.
[0041] According to yet another advantageous modality of the cutting tool according to the present invention, the cutting tool comprises two end elements, through which the central axis of the cutting tool extends, wherein the plurality of segments is located between said two end elements, and wherein at least one of the two end elements is provided with at least one first antenna. This is an efficient location of the first antenna, which further improves the modular concept for the specific milling tool. The first antenna can be provided in a slit, for example a peripheral slit, provided in the terminal element. Alternatively, at least one of the segments can be provided with at least one first antenna, and together with the surface acoustic wave sensor and the first antenna can form a unit.
[0042] According to yet another advantageous embodiment of the cutting tool according to the present invention, each cutting edge or each seat includes at least one adjacent surface acoustic wave sensor. By detecting or determining the parameters correlated to each cutting edge or each cutting insert, efficient monitoring of the rotary chip removal machining of a workpiece is provided.
[0043] According to an additional advantageous embodiment of the cutting tool according to the present invention, the tool body is provided with at least one first antenna.
[0044] According to another advantageous modality of the cutting tool according to the present invention, the tool body is rotatable about its central axis, and said at least one surface acoustic wave sensor and said at least one first antenna they are mobile relative to at least one second antenna.
[0045] According to an advantageous embodiment of the arrangement according to the present invention, the arrangement comprises at least one cutting tool as claimed in any of claims 8 to 15, and/or at least one cutting tool according to any of the other modalities disclosed. Positive technical effects of the arrangement modalities according to the present invention may correspond to the technical effects mentioned in connection with the cutting tool according to the present invention, as well as according to its modalities.
[0046] Said at least one first surface acoustic wave sensor may be one or a plurality of surface acoustic wave sensors.
[0047] Said at least one first antenna can be one or a plurality of first antennas. Said at least one second antenna can be one or a plurality of second antennas. Said at least one storage memory can be one or a plurality of storage memories. Said at least one parameter can be one or a plurality of parameters. Said at least one cutting edge can be one or a plurality of cutting edges. Said at least one seat can be one or a plurality of seats. Said at least one electrical connector can be one or a plurality of electrical connectors.
[0048] The aforementioned features and modalities of the arrangement and cutting tool, respectively, can be combined in several possible ways, providing additional advantageous modalities.
[0049] Additional advantageous embodiments of the arrangement and cutting tool, respectively, according to the present invention, and other related advantages will arise from the following detailed description of various embodiments. Brief Description of Drawings
[0050] The present invention will now be described in greater detail, for exemplary purposes, by means of the following embodiments and with reference to the attached drawings, in which: - Figure 1 is a schematic perspective view of an embodiment of the tool. cutting, in accordance with the present invention; figure 2 is a schematic perspective view of the cutting tool shown in figure 1, in an assembled state; figure 3 is a schematic exploded perspective view of the cutting tool shown in figure 2; figure 4 is a schematic plan view of one embodiment of a segment of the cutting tool shown in figures 1-3; figure 5 is a schematic side view of the segment shown in figure 4; figure 6 is an enlarged perspective schematic view of a portion of the segment shown in figure 4; figure 7 is a schematic view in enlarged perspective, of a portion of another embodiment of a segment, which essentially corresponds to the segment shown in figure 4; figure 8 is a perspective view of another embodiment of the cutting tool, according to the present invention; figure 9 is a perspective view of a further embodiment of the cutting tool, according to the present invention; figure 10 is a schematic diagram illustrating aspects of an embodiment of the arrangement according to the present invention; figure 11 is a schematic diagram illustrating further aspects of an embodiment of the arrangement according to the present invention; and - figure 12 is a schematic view in section and perspective of an embodiment of the machine arranged to machine a workpiece, by means of the cutting tool shown in figure 2, the machine being included in an embodiment of the arrangement according to present invention. Detailed Description of Modalities
[0051] Figure 1 schematically shows a mode of cutting tool (1) for rotary chip removal machining of a part in process (W), according to the present invention. The cutting tool (1) can be a milling tool, for example a milling tool (1), arranged for milling a specific part, such as a gear, providing a sprocket (for better reasons understanding, the teeth and notches are shown in the finished machined state). The part being processed (W) can, for example, be a part made of titanium, steel, aluminium, cast material or any other material. The cutting tool (1) shown in figure 1 can be called a milling cutter or a gear-specific milling tool. The cutting tool (1) comprises a tool body (40) which is connectable to a support element, for example a rotating shaft (2) or a rotating rod. The tool body (40) defines a central axis (C1), which can be defined as an axis of rotation (C1), being provided with at least one cutting edge (42) or with at least one seat (19) for receiving a cutting insert (20), which has at least one cutting edge (42). In the embodiments of figures 1-5, the tool body (40) is provided with at least one seat (19) for receiving a cutting insert (20) having at least one cutting edge (42). The cutting edge (42) of the cutting insert (20) can, for example, be made of carbide, cermet, cubic boron nitride, polycrystalline diamond or ceramic. The material of the cutting edge (42) and cutting insert (20) may be different from the material of the tool body (40). The tool body (40) may include said at least one cutting insert (20). Alternatively, the tool body can be provided with one or a plurality of cutting edges, integrated with the tool body. The tool body (40) may comprise a plurality of segments (8a, 8b). Each segment (8a, 8b) may comprise a plurality of peripherally spaced seats (19), each seat (19) being arranged to receive a cutting insert (20). Alternatively, each segment may be provided with a plurality of peripherally spaced cutting edges (42) which are integrated with the respective segment (8a, 8b). Each cutting edge (20) can be detachably mounted on the seat (19), thus being replaceable. Each segment (8a, 8b) can be of disk format. According to the embodiment of figure 1, the cutting tool (1) can be mounted on an axis (2) that defines a central axis (C1). One end of the shaft (2) can be attached to a mandrel (3), while the opposite end can be hinged to a bearing bracket (4). Alternatively, a specific milling tool for gear milling can be connected to a rotating shank at one end while the other is free. With reference to figure 3, two adjacent segments (8a, 8b) can be detachably connected to each other. The cutting tool (1) or the tool body (40) may comprise two end elements (5, 6), through which the central axis (C1) of the cutting tool (1) extends, and the plurality of segments (8a, 8b) can be located between said two end elements (5, 6). The chuck (3) and thus the cutting tool (1) can be rotated in the (R1) direction, while the workpiece (W) can be rotated in the (R2) direction, more precisely, around a central axis (C2). The mandrel (3) and the bearing support (4) can form part of a machine (44), arranged to machine the workpiece by means of the cutting tool (1) and the machine (44) can comprise a type arrangement. platform (46) (see figures 11-12).
[0052] In practice, the cutting tool (1) is driven at a speed considerably higher than the workpiece (W). Thus, for example, the cutting tool (1) can be rotated by 100 revolutions, while the workpiece (W) can be rotated by 1 rotation. Cutting tool feed (1) can be made parallel to the central axis (C2), as highlighted by the double arrow “f”. By means of the selected directions of rotation (R1), (R2), the feed takes place in the downward direction, starting from an upper end position. The individual cutting inserts (20) included in the segments (8a, 8b) can follow a continuous helical line along the outside of the tool body (40). In figures 2 and 3, the configuration of the cutting tool (1) can be shown in greater detail. In the example, the tool body (40) may comprise six segments (8a, 8b) in total. However, the tool body (40) may comprise fewer or more segments (8a, 8b). Each second segment (8a, 8b) of the set shown may be formed in a way that differs from the intermediate segments (8a, 8b). In order to separate the different segments, the segments (8a, 8b) were complemented with the suffix “a” and “b”, respectively. Of the two end elements (5, 6), the segments (5) furthest from the viewer in figures 2 and 3 can be designated as a "rear" end element, while the other can form a "front" end element (6). In the exploded view according to figure 3, two types of screws are further shown, viz. a pulling screw (9) and a dismounting screw (10).
[0053] In figure 4 an individual segment of the type that is designated as (8a) in figure 3 is shown. Each segment (8a, 8b) defines a central axis (C3) and may comprise a first side and a second side, the central axis (C1) of the segment (8a, 8b) extending through the first and second sides, and being collinear with the central axis (C1) of the tool body (1). Each segment (8a) may include a dent portion (11) and an outer peripheral cam (12), provided with a plurality of peripherally spaced cutting edges (42) and/or seats (19). The dent portion (11) may include two parallel end surfaces (13, 14), the first of which forms a rear end surface and the other of which forms a front end surface. Outwardly, the dent part (11) can be limited by a partially cylindrical enveloping surface (15), from which the cam (12) has a certain radial extension. The segments (8a, 8b) can be mounted on a common drive shaft (2) (see figure 1), and the dent part (11) can include a central hollow opening (16) of cylindrical shape. Adjacent to said central opening (16) a slot (17) is formed in which a locking shim (7) of the transmission shaft (2) can engage. The two end surfaces (13, 14) can extend in planes, which are perpendicular to a central axis (C3), which coincides with the central axis (C1) of the tool body (40). In other words, the end surfaces (13, 14) can be mutually parallel. The enveloping surface (15) can be concentric to the central axis (C3).
[0054] The peripheral cam (12) can extend along a helical line. More precisely, the peripheral axis (12) may extend one turn along the dent part (110 and follow a helical line of a predetermined distance. This distance is indicated by the angle (α) between the plane and the end surface ( 13) of the dent part and a ring-shaped front surface (18) of the cam (12) (see figure 5).The angle (α) can suitably be arranged in the range of 1-10°. (12) can be shim-shaped cross-section so that it is tapered from a broad base toward a pointed outer portion. Rotationally, in front of each seat (19) and a cutting insert ( 20) a chip channel (21) is provided to facilitate the removal of chips, which are removed by means of cutting inserts (20). Each first seat (19) and cutting insert (20), respectively, can be found on the flank surface of the cam (12) and every second on the other flank surface. It should also be mentioned that the cam ( 12) can end in flat surfaces (22) (see figure 5), which can be pressed against analogous surfaces of the cams (12), in adjacent segments (8a, 8b). When joined together, the cams (12) of the individual segments (8a, 8b) provide a continuous thread-type screw formation of the assembled cutting tool (1). With respect to the direction of rotation about the axis of rotation (C1), (C3), one of the cutting edges (42) or the seats (19) of the peripheral cam (12) is an advancing cutting edge (42b) , or advance seat (19b), with respect to the other cutting edges (42) or seats (19) of the segment (8a, 8b).
[0055] With reference to figures 6 and 7, the cutting tool (1) is provided with at least one surface acoustic wave (SAW) sensor (48) (hereinafter, called SAW sensor) and at least one first antenna (50), connectable to at least one SAW sensor (48). Said at least one first antenna (50) is arranged for wireless communication with at least one second antenna (52) (see figures 10-12), for example via radio waves. Each SAW sensor (48) is arranged to detect or capture at least one parameter from a group of parameters consisting of voltage, temperature and pressure. Additional parameters can be determined, at least partially, based on said at least one detected parameter, i.e. based on the detected voltage, temperature and/or pressure. Real-time tension, shock and/or wear growth on the cutting tool (1), cutting insert and/or cutting edge (42) can be determined by means of the SAW sensor (48), and based on in said at least one detected parameter. A SAW sensor (48) operates on the principle of a surface acoustic wave device. A SAW sensor, per se, which can be interrogated wirelessly, is already known, being disclosed, for example, in U.S. Patent No. 6,144,332. Each SAW sensor (48) can be located in a recess (54) in the tool body (40) and can be fixed to the tool body (40) in said recess (54). With reference to Figures 6 and 7, the SAW sensors (48) can be placed in the same recess (54), where the external SAW sensor (48) can be arranged to sense temperature. Said at least one SAW sensor (48) and said at least one first antenna (50) are arranged to transmit said at least one sensed parameter to the second antenna (52) in response to an interrogation signal received by the first. antenna (50) from the second antenna (52). Said at least one SAW sensor (48) and said at least one first antenna (50) are arranged to receive energy or power from the interrogation signal in order to transmit said at least one detected parameter to the second antenna (52). Thus, the energy or force required for transmitting said at least one detected parameter is received from the interrogation signal. The tool body (40) can be provided with at least one SAW sensor (48). Thus, said at least one SAW sensor (48) can be attached to the tool body (40). Said at least one SAW sensor (48) may be located adjacent to at least one cutting edge (42) or adjacent to at least one seat (19). At least one seat (19) can be provided with at least one SAW sensor (48). Each segment (8a, 8b) can be provided with at least one SAW sensor (48). Thus, at least one SAW sensor (48) can be attached to each segment. Referring to Figure 6, at least the advancing cutting edge (42b) and/or the advancing seat (19b) can be provided with at least one adjacent SAW sensor (48).
[0056] With reference to figures 3 and 4, each seat (19) can comprise at least one seat surface (56) and the seat surface (56) of said at least one seat (19) can be provided with at least one seat. a SAW sensor (48). Each cutting edge (42) or each seat (19) can be provided with at least one adjacent SAW sensor (48).
[0057] With reference to figure 3, at least one of the two terminal elements (5, 6) can be provided with at least one first antenna (50). Thus, said at least one first antenna (50) can be mounted on one or both of the terminal elements (5, 6). The first antenna (50) can have a peripheral extension at least partially around the central axis (C1), or the first antenna (50) can form a substantially annular extension around the central axis (C1). The first antenna (50) can be provided in a peripheral slot in the terminal element (5, 6). The first antenna (50) can be a dipole antenna. The first antenna (50) can be a slot antenna. The first antenna (50) may be an asymmetric slot dipole antenna. With reference to Figure 12, when the tool body (40) is rotatable about its central axis (C3), said at least one SAW sensor (48) and said at least one first antenna (50) can be movable with respect to at least one second antenna (52). Each of the end elements (5, 6) can be provided with a first antenna (50). The tool body (40) can be provided with at least one first antenna (50). Thus, said at least one first antenna (50) can be mounted or fixed to the tool body (40).
[0058] With reference to figure 7, each segment (8a, 8b) can be provided with at least one electrical connector (58), connected to said at least one SAW sensor (48) of the same segment (8a, 8b). The electrical connector (58) can be connected to said at least one SAW sensor (48) by means of a cable, a communication line or an electrical conductor, etc., which can be arranged in a slot, a recess and/or a hole, or combinations thereof, disposed in the tool body (40). Each electrical connector (58) is directly connectable to the first antenna (50) or indirectly connectable to the first antenna (50) through one or a plurality of intermediate electrical connectors (58), one or a plurality of intermediate segments (8a, 8b ).
[0059] On the first side of the segment (8a, 8b), each electrical connector (58) of the segment (8a, 8b) can be detachably connected to the first antenna (50) and/or an electrical connector (58) of an adjacent segment (8a, 8b). On the second side of the segment (8a, 8b), each electrical connector (58) of the segment (8a, 8b) can be detachably connected to the first antenna (50) and/or an electrical connector (58) of an adjacent segment (8a, 8b). Thus, a modular concept is provided for the cutting tool (1) and its SAW sensors (48), as well as for its said at least one antenna (50). The segments (8a, 8b) can be configured so that two segments (8a, 8b) can be connected to each other in only one way and according to a specific mutual relationship only, whereby the electrical components (58) of different segments (8a, 8b) can be positioned at all times along a common longitudinal axis when the segments (8a, 8b) are assembled, for example, by means of a CoromantCapto™ connection type and via the aforementioned slot (17 ).
[0060] Figure 8 schematically shows another modality of the cutting tool (101), for rotary machining of chip removal from a part in process, according to the present invention. The cutting tool (101) shown in Figure 8 is a turning tool for turning a workpiece that can be rotated. The cutting tool (101) comprises a tool body (140) that is connectable to a support element. The tool body (140) defines a central axis (C4), being provided with at least one cutting edge (142) or with at least one seat (119) for receiving a cutting insert (120), which has at least one cutting edge (142). In the embodiment of figure 8, the tool body (140) is provided with at least one seat (119) for receiving a cutting insert (120) which has at least one cutting edge (142). The cutting insert (120) can be made of carbide, cermet, cubic boron nitride, polycrystalline diamond or ceramic. The cutting tool (101) is provided with at least one SAW sensor (148) and with at least one first antenna (150), connectable or connected, to said at least one SAW sensor (148). Said at least one SAW sensor (48) can be connected to at least a first antenna (150) by means of a cable, a communication line or an electrical conductor, etc., which can be arranged in a slot, a recess and/or a hole (not shown), or combinations thereof, disposed in the tool body (140). Said at least one first antenna (150) is arranged for wireless communication with at least one second antenna (52) (see figure 11), for example via radio waves. Each SAW sensor (148) can correspond to the SAW sensor (48) described above. The at least one first antenna (150) can essentially correspond to said at least one first antenna (50) disclosed above.
[0061] Figure 9 schematically shows an additional modality of the cutting tool (201) for rotary machining of chip removal of a part in process, according to the present invention. The cutting tool (201) shown in Figure 9 is a punch for drilling a part. The cutting tool (201) comprises a tool body (240) which can be connected to a rotating shank. The tool body (240) defines a central axis (C5). In the embodiment of figure 9, the tool body (240) is provided with at least one cutting edge (242) which is integrated with the tool body (240). The cutting tool (201) is provided with at least one SAW sensor (48) and at least one first antenna (250), connectable or connected to at least one SAW sensor (248). Said at least one SAW sensor (248) can be connected to at least one first antenna (250) by means of a cable (249), a communication line or an electrical conductor, etc., which can be provided in a slot , a recess and/or a hole (not shown) or combinations thereof, disposed in the tool body (240). Said at least one first antenna (250) is arranged for wireless communication with at least one second antenna (52) (see figure 11), for example via radio waves. Each SAW sensor (248) may correspond to the SAW sensor (48) disclosed above. Said at least one first antenna (250) can essentially correspond to at least one first antenna (50) disclosed above. The torque of the cutting tool (201) can be determined, for example, by means of said at least one SAW sensor (248), as well as by means of a plurality of SAW sensors, and at least partially, based on the said at least one detected parameter.
[0062] With reference to figure 10, are schematically illustrated, according to the present invention, aspects of an arrangement embodiment to control the rotary machining process of chip removal of a part in process (W). The arrangement comprises a monitoring system to monitor rotary chip removal machining. The monitoring system comprises at least one SAW sensor (48; 148; 248), arranged to be mounted on a cutting tool (1; 101; 201), for rotary machining of chip removal from the workpiece (W). The SAW sensor (48; 148; 248) can be designed as disclosed above. The cutting tool (1; 101; 201) may be a cutting tool (1; 101; 201), according to any of the aforementioned cutting tools (1; 101; 201), or according to any other type of cutting tool for rotary machining of chip removal of a workpiece. The cutting tool can comprise at least one tool body (40; 140; 240), which can be connected to a support element or to a rotating rod; the tool body (40; 140; 240) defining a central axis (C1; C4; C5) and being provided with at least one cutting edge (42; 142; 242) or with at least one seat (19; 119) for receiving a cutting insert (20; 120) having at least one cutting edge (42; 142; 242). The monitoring system comprises at least a first antenna (50; 150; 250) arranged to be mounted on the cutting tool (1; 101; 201), for example, as disclosed above. Said at least one first antenna (50; 150; 250) is connectable or connectable to at least one SAW sensor (48; 148; 248), for example, as disclosed above. Said at least one SAW sensor (48; 148; 248) can be mounted on the tool (1; 101; 201) by means of a fastening element, e.g. an adhesive, a pressure device, or a slit or pouch , into which the SAW sensor is inserted. Said at least one first antenna (50; 150; 250) can be mounted on the tool (1; 101; 201) by means of a fastening element, e.g. an adhesive, a pressure device, or a slot or pouch , into which the first antenna is inserted, and/or by means of other suitable fastening elements. Therefore, other means of attachment are possible.
[0063] The monitoring system comprises at least one second antenna (52), said at least one second antenna (52) being arranged for wireless communication with said at least one first antenna (50; 150; 250). Thus, said at least one first antenna (50; 150; 250) is also arranged for wireless communication with said at least one second antenna (52). Said at least one SAW sensor (48; 148; 248) and said at least one first antenna (50; 150; 250) are arranged to transmit at least one sensed parameter to the second antenna (52) in response to a interrogation signal received by the first antenna (50; 150; 250) from the second antenna (52). As disclosed above, said at least one SAW sensor (48; 148; 248) and said at least one first antenna (50; 150; 250) are arranged to receive energy from the interrogation signal in order to transmit said at least one detected parameter for the second antenna (52). The monitoring system further comprises a processing unit (60) connected to said at least one second antenna (52). The processing unit (60) is arranged to transmit the interrogation signal and the transmission energy to said at least one first antenna (50; 150; 250) and to said at least one SAW sensor (48; 148; 248 ) through said at least one second antenna (52). The processing unit (60) is arranged to receive the at least one detected parameter via the at least one second antenna (52). The arrangement comprises a control system (52) arranged to communicate with the monitoring system. The control system (62) may be arranged to communicate with the processing unit (60). The control system (62) may comprise a Computer Numerical Control (CNC). The control system (62) is arranged to control the chip removal rotary machining of a workpiece (W), at least partially, based on said at least one detected parameter, i.e., the at least one parameter detected by the said at least one SAW sensor (48; 148; 248). The monitoring system, for example the processing unit (60) or the process monitoring unit (72) or the control system (62) can be arranged to determine at least one parameter, for example, the growth of the real-time tool wear, etc., as mentioned above, at least partially based on said at least one detected parameter.
[0064] The control system (62) can be arranged to control the rotary machining of chip removal of a part in process (W), by controlling, for example, increasing or decreasing the tool body rotation speed (40; 140; 240) and/or the part (W), at least partially, based on said at least one detected parameter. The control system (62) can be arranged to control the rotary chip removal machining of the part (W), by controlling, for example, the increase or decrease of the tool body rotation speed (40), and by controlling of the movement of the workpiece (W) with respect to the tool body (40), in an advance direction, at least partially, based on said at least one detected parameter. For a milling tool (1) arranged to mill gear-type parts, the control system (62) may be arranged to control rotary machining of rotary chip removal of a part (W), such as, for example, augmentation or decreasing the rotational speed of the tool body (40) and/or the part being processed, and/or by controlling the linear movement of the tool body (40) in the direction of its central axis (C1), at least partially, based at least one parameter detected. As indicated above, said at least one detected parameter can be any parameter from the group of parameters consisting of voltage, temperature and pressure. Thus, tension, shock, force and wear growth in real time, on the cutting tool (1; 101; 201), on the cutting insert (20; 120) and/or on the cutting edge (42; 142; 242) and the torque of the cutting tool (1; 201) can be determined, at least partially, based on said at least one detected parameter, i.e., based on the voltage, temperature and/or pressure detected by said at least one SAW sensor (48; 148; 248). By controlling the linear movement of the tool body (40) of a gear milling machine (1), the milling in the cut can be shifted in position to obtain an increase and an optimal use of the tool. The control system (62) can be designed to feed back control of rotary chip removal machining. The control system (62) may be arranged to set a desired value or a desired range for at least one parameter detected by means of at least one SAW sensor (48; 148; 248), or for at least one determined parameter, with based on said at least one detected parameter. The monitoring system is arranged to detect said at least one parameter, and the control system (62) may be arranged to adjust the control of the chip removal rotary machining so that the at least one detected parameter, or the at least one determined parameter, either below or above said desired value, or such that the at least one detected or determined parameter is below or above said desired range. The control system (62) may comprise a process control/action unit (63) which can perform control adjustments of the chip removal rotary machining. The process control/action unit (63) can be arranged to perform an action, a control or a control adjustment of the machining, at least partially, based on said at least one detected parameter received from said at least one SAW sensor. (48; 148; 248), and at least partially based on the data from a modulus of cutting tool data (68) (the modulus of cutting tool data (68) is disclosed in more detail below). The control/process action unit (63) can, for example, be arranged to modify the cutting data, the position of the cutting tool (1; 101; 201) and/or the rotation speed of the tool body and /or the workpiece, at least partially, based on said at least one detected parameter. The process action/control unit (63) can be included in the monitoring system. The process action/control unit (63) can be included in the processing unit (60). The control/process action unit (63) can be integrated into the control system (62), for example, on the CNC. The control/process action unit (63) can be integrated in the cutting tool (1; 101; 201) and be connected/connectable to said at least one SAW sensor (48; 148; 248) and to said at least one antenna (50; 150; 250). The process control/action unit (63) can be a stand-alone module or it can be a remote function, for example via an Internet-based service or any other service.
[0065] The monitoring system may further comprise a process monitoring unit (72). The process monitoring unit (72) can be arranged to communicate with the processing unit (60). The process monitoring unit (72) may comprise a software module. The arrangement may comprise an identification system for identifying the cutting tools (1; 101; 201). The identification system comprises identification means (64; 164; 264) (see also figures 8 and 9) arranged for attachment to the cutting tool (1; 101; 201). The identification means (64;164;264) is arranged to provide at least the identity data of the cutting tool (1;101;201). The monitoring system is arranged to communicate with the identification system. The control system (62) may be arranged to communicate with the identification system. The arrangement may comprise at least one storage memory (66) for storing data from said at least one cutting tool (1; 101; 201). The identification system may be arranged to communicate with said at least one storage memory (66). Said at least one storage memory (66) can be in the form of at least one database. The arrangement may comprise a machine (44), arranged to machine the part (W) by means of the cutting tool (1; 101; 201). The machine may comprise a platform-like arrangement (46) arranged to support the support member or the rotating rod to which the cutting tool (1; 101; 201) is attachable. The control system (62) may be arranged to control said machine (44), at least partially, based on said at least one detected parameter. The array may comprise a cutting tool data module (68) which may be connected to at least one storage memory (66), or may comprise said at least one storage memory (66). The cutting tool data module (68) and/or said at least one storage memory (66) can be arranged to store data of each cutting tool (1; 101; 201), e.g. desired values or the reference values of said cutting tool. The data of said at least one cutting tool (1; 101; 201) can be threshold values for monitoring purposes, nominal/actual dimensional data (eg diameter and length of the cutting tool), other data correlated to the cutting tool. cut, such as usable length and modulus size, eg relative to gear milling tools, recommended and actual cutting data (eg speed, feed, depth of cut), tool identification, tool life tool, and process-correlated data, eg time of use, data from SAW sensors (48) and other sensors. The cutting tool data module (68) and/or said at least one storage memory (66) may also be arranged for storing threshold values for monitoring purposes. The arrangement may comprise a cutting tool presetting unit (70) arranged to provide the actual dimensions of the specific cutting tool (1; 101; 201) (actual values of the cutting tool). The actual dimensions of the specific cutting tool can be obtained from measurements of the specific cutting tool (1; 101; 201). The actual dimensions correlated to a specific cutting tool (1; 101; 201) can be loaded from the cutting tool preset unit (70) to the data module (68) of the cutting tool and/or to the identification means (64). The cutting tool data module (68) and/or said at least one storage memory (66) can also be arranged to store the machine machining process data (44), the monitoring data from the modules of storage/analysis, the action/control data for machining adjustment/control, etc.
[0066] In addition to said at least one SAW sensor (48; 148; 248), the arrangement may comprise at least one additional sensor (71) arranged to be mounted on the cutting tool (1; 101; 201) or on the arrangement platform type (46) or any other part of the machine (44). The arrangement may comprise said at least one cutting tool (1; 101; 201).
[0067] Referring to Figure 11, further aspects of an embodiment of the arrangement according to the present invention are schematically illustrated. The processing unit (60) can be a Central Processing Unit (CPU) or a processor. The processing unit (60) can be connected to said at least one second antenna (52), for example, through conventional communication paths, such as, through a cable. As indicated above, the processing unit (60) is arranged to transmit the interrogation signal and transmission power to said at least one first antenna (50) and to said at least one SAW sensor (48) via said by the minus one second antenna (52). The processing unit (60) is arranged to receive said at least one parameter detected via said at least one second antenna (52). The monitoring system may comprise a process monitoring unit (72). The process monitoring unit (72) can be an independent unit arranged to communicate with the processing unit (60), for example, through conventional communication paths, such as through a cable or through a mode. wireless. The process monitoring unit (72) can be included in the processing unit (60) with algorithms for use in the cutting tool and process monitoring. As shown in figure 11, the process monitoring unit (72) can comprise a software module, with algorithms for use in the cutting tool and process monitoring, integrated into the control system (62), for example, through the CNC. Thus, the control system (62) can be arranged to communicate with the process monitoring unit (72). The process monitoring unit (72) can be connected to the CNC via the aforementioned process control/action unit (63). Alternatively, the process monitoring unit (72) can be a remote function, for example via an internet-based service or via any other service. The control system (62) can be arranged to control movements such as a movement along and around, respectively, the above mentioned axes (C1), (C2), (f), rods, tool change mechanisms , etc., of the machine (44) when machining a part (W) (see figure 1). The control system (62) may be arranged to communicate with the monitoring system through communication paths, such as through a cable or a wireless medium, as disclosed above.
[0068] With reference to Figure 12, the arrangement may comprise a machine (44) arranged to machine a part in process by means of the cutting tool (1). The machine (44) may comprise a platform-like arrangement (46) arranged to support the support element or the rotating rod to which the cutting tool (1) is connected. The platform-like arrangement (44) can be arranged to support the part (W). Control system (62) may be arranged to control said machine (44). The control system (62) may be arranged to control the axes (linear and rotary), the supply of coolant medium, etc., of said machine (44). Said at least one second antenna (52) can be mounted in said platform-like arrangement (46). Advantageously, said at least one second antenna (52) can be mounted on said platform-like arrangement (46) so that no electrically conductive material or object, for example metallic material, promotes the blocking of the wireless path between the said at least one first antenna (50; 150; 250) and said at least one second antenna (52), whereby a satisfactory wireless communication between the antennas (50, 52) can be guaranteed. The second antenna (52) can be mounted on the inner wall of the space in which the cutting tool (1) is operating. Said at least one second antenna (52) can be made of one or a plurality of flexible materials and thus can be flexible in order to obtain an optimal fit within the machine (44). Said at least one first antenna (50) can be made of one or a plurality of flexible materials and thus can be flexible in order to obtain an optimal fit with the cutting tool. Said at least one second antenna (52) may comprise at least one micro-strip antenna. Each second antenna (52) may comprise at least one link antenna. However, each second antenna (52) can comprise any other type of antenna. Each second antenna (52) can have two integrated antennas in order to increase the number of available transmission channels. A second antenna (52) for each first antenna (50) can be provided. Thus, if two first antennas (50) are included, two second antennas (52) may be provided, for example, in proximity to the respective first antenna (50).
[0069] With reference to figure 11, the above-mentioned identification means (64; 164; 264) (see also figures 8 and 9) or identification unit, which is arranged to be attached to the cutting tool (1; 101 ;201), can, for example, be an RFID unit, a QR code, and/or a memory chip, providing at least identity data of the cutting tool (1). Alternatively, the SAW sensor (48) can form the identification means (64). The monitoring system can be arranged to communicate with the identification system, for example, through conventional pathways, such as, for example, through a cable or a wireless mode. The identification system may be arranged to communicate with said at least one storage memory (66) via, for example, conventional communication paths such as a cable or a wireless mode. As indicated above, the storage memory (66) may comprise at least one database and may be included in the data module (68) of the cutting tool. Alternatively, the identification means (64) may comprise storage memory (66). The cutting tool data module (68) can be connected to the cutting tool presetting unit (70) for example via conventional communication paths such as via a cable or wireless mode. A user terminal (74), for example a computer, a PC, a smartphone or any other device can be connected and arranged for communication with the data module (68) of the cutting tool.
[0070] The characteristics of the different arrangements of the arrangement and the cutting tool, respectively, disclosed above, can be combined in several possible ways, thereby providing additional advantageous arrangements.
[0071] The invention is not limited to the illustrated modalities, it can be modified and altered in various ways by an expert versed in the art, without being departed from the scope of the appended claims.

权利要求:
Claims (16)
[0001]
1. Arrangement to control the chip removal rotary machining process of a workpiece (W), wherein the arrangement comprises a monitoring system to monitor the chip removal rotary machining, characterized by the fact that the monitoring comprises at least one surface acoustic wave (SAW) sensor (48; 148; 248), arranged to be mounted on a cutting tool (1; 101; 201) for rotary chip removal machining of the part (W), in a position in proximity to the region of the cutting tool in which at least one parameter from a group of parameters consisting of voltage, temperature and pressure is more efficiently detected, in which the monitoring system comprises at least one first antenna ( 50; 150; 250) arranged to be mounted on the cutting tool, said at least one first antenna being connectable to said at least one surface acoustic wave sensor, wherein the monitoring system comprises and at least one second antenna (52), wherein said at least one first antenna is arranged for wireless communication with said at least one second antenna, wherein said at least one surface acoustic wave sensor and said at least a first antenna are arranged to transmit said at least one detected parameter to the second antenna in response to an interrogation signal received by the first antenna from the second antenna, wherein said at least one surface acoustic wave sensor and the said at least one first antenna are arranged to receive energy from the interrogation signal in order to transmit said at least one detected parameter to the second antenna, wherein the monitoring system further comprises a processing unit (60) connected to said at least one second antenna, wherein the processing unit is arranged to transmit the interrogation signal and transmission energy to said at least one first antenna and to said at least one surface acoustic wave sensor, via said at least one second antenna, wherein the processing unit is arranged to receive said at least one parameter detected via said at least one second antenna, wherein the arrangement comprises a control system (62) arranged to communicate with the monitoring system, and wherein the control system is arranged to control, at least partially, the rotary chip removal machining of the workpiece, based on said at least one parameter detected.
[0002]
2. Arrangement according to claim 1, characterized in that the arrangement comprises an identification system for identifying the cutting tools (1; 101; 201), wherein the identification system comprises identification means (64; 162;264) arranged to be attached to the cutting tool, the identification means being arranged to provide at least identity data of the cutting tool, and wherein the monitoring system is arranged to communicate with the identification system.
[0003]
3. Arrangement according to claim 2, characterized in that the arrangement comprises at least one storage memory (66), for storing data from said at least one cutting tool (1; 101; 201), and in that the identification system is arranged to communicate with said at least one storage memory.
[0004]
4. Arrangement, according to any one of claims 1 to 3, characterized in that the arrangement comprises equipment (44) arranged to machine the part being processed (W) by means of the cutting tool (1; 101; 201 ), the equipment comprising a platform (46) arranged to support a cable or a rotating rod to which the cutting tool can be connected, and wherein the control system (62) is arranged to at least partially control said equipment, based on at least one detected parameter.
[0005]
5. Arrangement according to claim 4, characterized in that said at least one second antenna (52) is mounted on said platform (46).
[0006]
6. Arrangement according to claim 5, characterized in that said at least one second antenna (52) is mounted on said platform (46) so that no conductive material is blocking the wireless path between said at least one first antenna (50) and said at least one second antenna (52).
[0007]
7. Arrangement according to any one of claims 1 to 6, characterized in that said at least one first antenna and/or said at least one second antenna (50, 52) is/are made to from one or a plurality of flexible materials.
[0008]
8. Cutting tool (1; 101; 201) for use in an arrangement as defined in any one of claims 1 to 7, characterized in that the cutting tool comprises a tool body (40; 140; 240), which is connectable to a handle or a rotating shank, the tool body defining a central axis (C1; C4; C5) and being provided with at least one cutting edge (42; 142; 242) or with at least one seat (19; 119), for receiving a cutting insert (20; 120) having at least one cutting edge (42; 142; 242), wherein the cutting tool is provided with at least one acoustic wave sensor surface (48; 148; 248) and at least one first antenna (50; 150; 250) connectable to said at least one surface acoustic wave sensor, said at least one first antenna being arranged for wireless communication with said by at least one second antenna (52) wherein each surface acoustic wave sensor is arranged to detect at least one parameter of a a group of parameters consisting of voltage, temperature, and pressure, where each surface acoustic wave sensor is mounted on the cutting tool (1; 101; 201) at a position in proximity to the region of the cutting tool (1; 101; 201) wherein at least one parameter is more efficiently detected, wherein said at least one surface acoustic wave sensor and said at least a first antenna are arranged to transmit said at least one detected parameter to the second antenna in response to an interrogation signal received by the first antenna from the second antenna, and wherein said at least one surface acoustic wave sensor and said at least one first antenna are arranged to receive energy from the interrogation signal in order to transmit said at least one sensed parameter to the second antenna.
[0009]
9. Cutting tool according to claim 8, characterized in that the tool body (40) is provided with at least one surface acoustic wave sensor (48), and in particular, said at least one surface acoustic wave sensor (48) is located adjacent to at least one cutting edge (42) or to at least one seat (19).
[0010]
10. Cutting tool according to claim 8 or 9, characterized in that the cutting tool comprises at least one tool element connectable to a handle or a rotating rod, wherein the tool is connectable to the handle or rotating shaft through at least one tool element, wherein the tool element is provided with at least one electrical connector, wherein the tool body is provided with at least one electrical connector connected to at least one surface acoustic wave sensor , and wherein each electrical connector is directly connectable to the first antenna or indirectly connectable to the first antenna through one or a plurality of intermediate electrical connectors.
[0011]
11. Cutting tool, according to any one of claims 8 to 10, characterized in that the cutting tool (1) is arranged to perform the milling of a part in process (W), in which the central axis ( C1) of the tool body is an axis of rotation, and the tool body comprises a plurality of segments (8a, 8b), each segment comprising a plurality of peripherally spaced cutting edges (42) or a plurality of seats (19) , each seat being arranged to receive a cutting edge (20), and wherein each segment is provided with at least one surface acoustic wave sensor (48).
[0012]
12. Cutting tool according to claim 11, characterized in that adjacent segments (8a, 8b) can be detachably connected to each other, wherein each segment is provided with at least one electrical connector (58) connected to at least one surface acoustic wave sensor (48) of the same segment, and wherein each electrical connector is directly connectable to the first antenna (50) or indirectly connectable to the first antenna through a plurality of intermediate electrical connectors (58), or through one or a plurality of intermediate segments.
[0013]
13. Cutting tool according to claim 12, characterized in that each segment (8a, 8b) defines a central axis (C3) and comprises a first side and a second side, the central axis of the segment extending through of the first and second sides and being collinear with the central axis (C1) of the tool body (40), wherein on the first side, each electrical connector (58) of the segment can be detachably connected to the first antenna (50) and /or to an electrical connector (58) of an adjacent segment, and wherein on the second side, each electrical connector of the segment may be detachably connected to the first antenna and/or an electrical connector of an adjacent segment
[0014]
14. Cutting tool according to any one of claims 11 to 13, characterized in that each segment (8a, 8b) comprises a peripheral cam (12) provided with a plurality of peripherally spaced cutting edges (42) or of a plurality of seats (19), wherein the peripheral cam extends along a helical line, wherein relative to the direction of rotation (R1) about the axis of rotation (C1), one of the edges of the cut or one of the seats of the peripheral cam is a leading cutting edge (42b) or a leading seat (19b) with respect to the other cutting edges or seats of the segment, and wherein at least the leading cutting edge is provided with at least one adjacent surface acoustic wave sensor (48).
[0015]
15. Cutting tool according to any one of claims 11 to 14, characterized in that the cutting tool (1) comprises two end elements (5, 6) through which the central axis (C1) of the cutting tool section extends, wherein the plurality of segments (8a, 8b) are located between said two end elements, and wherein at least one of the two end elements is provided with at least one first antenna (50).
[0016]
16. Arrangement according to any one of claims 1 to 7, characterized in that the arrangement comprises at least one cutting tool (1), as defined in any one of claims 8 to 15.

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同族专利:

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公开号 | 公开日

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US20140140781A1|2014-05-22|

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BR102013030002A2|2017-09-12|

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JP6472162B2|2019-02-20|

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US9498827B2|2016-11-22|

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JP2014104578A|2014-06-09|

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KR102153142B1|2020-09-07|

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CN103831666A|2014-06-04|

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RU2013151903A|2015-05-27|

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CN103831666B|2018-02-02|

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KR20140066110A|2014-05-30|

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EP2735400A1|2014-05-28|

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法律状态:
2017-09-12| B03A| Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]|

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2018-11-21| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|

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2020-10-27| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|

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2021-06-29| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|

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2021-09-08| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 22/11/2013, OBSERVADAS AS CONDICOES LEGAIS. |

优先权:

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申请号 | 申请日 | 专利标题

---

EP12193804.7A|EP2735400A1|2012-11-22|2012-11-22|An arrangement for controlling the process of rotary chip removing machining of a workpiece, and a cutting tool for rotary chip removing machining|

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EP12193804.7|2012-11-22|

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