• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a bending press (1) and / or loading device (2) for feeding a bending press (1) with bending tools (5, 6), comprising: - at least one tool holder (3, 4; 13, 14) with an inner profile ( 8) having rail (7) for receiving and moving a bending tool (5, 6); and - at least one transfer device (15) drivable by a drive (21) for displacing a bending tool (5, 6) within the tool holder (3, 4, 13, 14) and / or between the tool holder (13, 14) Feeding device (2) and a tool holder (3, 4) of a bending press (1), wherein the transfer device (15) comprises a detachable coupling (18) for tying a bending tool (5, 6), characterized in that the transfer device ( 15) in the rail (7) of the tool holder (3, 4, 13, 14) is guided and the effective range of the coupling (18) at least partially in the interior of the slide (7).
    公开号:AT516043A4
    申请号:T50827/2014
    申请日:2014-11-12
    公开日:2016-02-15
    发明作者:
    申请人:Trumpf Maschinen Austria Gmbh；
    IPC主号:
    专利说明:

    The invention relates to a bending press and / or feeding device according to the preamble of claim 1 and to a method for feeding a bending press with bending tools and / or for replacing one or more bending tools used in a bending press with a feeding device. The invention also relates to a bending tool transfer device according to the preamble of claim 21.
    The automation and the reduction of the cycle times is an important aspect in connection with bending operations on workpieces to be shaped differently. A starting point for achieving this goal is to automate the replacement of the bending tools used in a bending press with a specially designed changer.
    The closest prior art is JPH0584414U. This document discloses a tool changer comprising a tool depot of a plurality of circumferentially arranged tool holders. In each tool holder a tool set consisting of upper tool and lower tool is held. To transfer a tool from the tool depot in the bending press, the corresponding tool holder is brought into a specific position and extends a driven chain. A shuttle attached to the front end of the chain has a mechanical docking or coupling to dock with the tool and slides it into the press brake. The coupling consists of an extension that moves into an opening of the tool. By outwardly pressed balls of the extension is anchored in the tool opening. Separate chains with corresponding docking devices are respectively provided for the upper and lower tool in JPH0584414U. The chain guide and thus also the chain and the shuttle run completely outside the tool holder for both the lower and the upper tool. Such a construction is complex and costly, not least because of the course of the chain guide. Existing systems can be retrofitted with difficulty or not at all. The chain guide is susceptible to fouling and takes up too much space, especially in the area that should be accessible and free from obstruction for optimal operation and workpiece positioning.
    A major disadvantage of this prior art is that in particular the docking device or coupling of the shuttle is exposed and is exposed to external influences particularly strong. This can sometimes result in the coupling becoming damaged or inoperative due to excessive contamination.
    DE3326067A1 discloses a mold changing device for molding machines, in particular injection molding machines. The pairs of mold halves are moved on so-called roller carriages or roller transfer devices into and out of the injection molding machine. By means of a train-pressure device, the mold halves pairs are transferred from the roller carriage to the roller transfer devices (and vice versa). The tension-compression device comprises a drive and a steel chain, which can be set by the drive in a train-pressure movement. At the front end of the steel chain, a hook is provided to couple to the mold half pair. This construction is very different from a bending press; An implemetation of this system in a bending press not only means high effort, but requires a fundamentally different conception of the bending press.
    The JPS57181725A discloses an automatic tool changing device for a bending press. A tool storage is formed by a drum of larger diameter and a drum of smaller diameter. For loading the bending press with a particular tool, the drum is first brought into a corresponding rotational position and then the tool selected out by means of a carriage along a specially provided guide transported into the bending press. The space-occupant carriage that carries or holds the tool moves between upper and lower tool holder. As a train-pressure means also serves a driven chain. The arrangement of the guide is also chosen unfavorable here. When moveable flap stops are provided, the possibilities due to the lack of space are very limited and collisions are to be feared. Due to the heavy accessibility of the guides installation, maintenance and repair are very expensive. Retrofitting of existing systems with a change system is not possible.
    The JPS60244426A discloses a tool changer for a bending machine, but contains no concrete teaching regarding the detailed construction of the tool changer.
    A prior art drawback with respect to a tool positioning or tool changing system involves coupling a bending tool to a transfer device, such as a transfer tool. to a chain and / or a shuttle. The prior art arrangement of the coupling of the transfer device leads to damage by collisions with other components or workpieces and to rapid soiling, through which the coupling sometimes even becomes functional. Another disadvantage is the complex and expensive construction that is required for the supply of the clutch having the transfer device and the bending tools. The z.T. Exposed arrangement of the chain or shuttle guides requires a great deal of space and is susceptible to external influences such as soiling, impacts, collisions with other movable components, such as e.g. Stops, sensors, etc. Particularly disadvantageous is that existing systems can not be combined with the tool changers of the prior art or complex conversion would be required.
    The object of the invention is to provide a bending press and / or a loading device, with which the problems occurring in the prior art can be solved and which are characterized in particular by space-saving design and retrofittability of existing bending presses or systems from. The transfer device and the coupling arranged thereon should be as protected as possible between the bending press and the charging device and should be protected against contamination and other external influences. Maintenance, repair and replacement should be easy.
    This object is achieved with a bending press and / or loading device of the type mentioned above in that the transfer device is guided in the rail of the tool holder and the effective range of the coupling is at least partially in the interior of the rail.
    By this measure, not only a reliable guidance of the transfer device is made possible, but it is the coupling to the bending tool and thus the power transmission from the transfer device to the bending tool in the immediate region of the rail, in which the bending tool is guided. This ensures a low-friction movement of the bending tool in the rail. Forces or moments acting transversely to the longitudinal extent of the rail can be minimized by the inventive measure. A tilting of the bending tool within the rail is thus withheld.
    The clutch has a releasing (released) position and a coupling position and can be actuated by an actuator. The coupling may e.g. be designed as a mechanical clutch, magnetic clutch or as a suction device. The coupling can produce a frictional and / or positive connection with the bending tool.
    The actuator for actuating the clutch may comprise a cylinder-piston unit, a linear drive, a motor, a vacuum device and / or an electromagnetic device.
    The term effective range is understood to mean that region of the coupling which cooperates with the bending tool in the coupling position, i. comes with the bending tool in contact or engaged. The effective region may be an active surface or contact surface formed on the coupling, e.g. Gripping surfaces of a gripper, which rest against the bending tool.
    A significant advantage of the invention with regard to the above-mentioned prior art is that no separate rail or guide must be provided for the transfer device, whereby the design effort can be significantly reduced. The bending tools used in the bending press and / or in the loading device are held in the same rail in which the transfer device or a section of the transfer device is also used or held.
    The principle according to the invention is applicable both to bending presses and to loading devices. But bending presses could also - regardless of the presence of a feeder - have a driven transfer device, which serves for moving or exact positioning of a bending tool within the tool holder. In a combined arrangement, i. in a feeding device coupled to a bending press, the bending tools can be moved from the tool holder of the loading device to the tool holder of the bending press, and vice versa.
    The bending press or the loading device preferably comprise a control device, by means of which the process of moving, loading and / or changing the tools is automated. For this purpose, the control device is connected to the clutch or to an actuator actuating the clutch. The control device can also be connected to the (drive) drive of the transfer device (and possibly also other drives of the loading device, for example for a possibly present movable tool storage device).
    The bending press is in particular a press for bending metal workpieces, in particular (steel) sheets.
    A preferred embodiment is characterized in that the effective range of the coupling lies completely within the rail. The co-operating with the bending tool portion of the coupling is optimally protected by its complete placement in the rail, while the force is applied at a convenient location that prevents tilting of the bending tool. In a further embodiment, all lying on the outside of the transfer means movable portions of the clutch are wholly within the rail.
    A preferred embodiment is characterized in that the coupling extends in a region of the inner profile of the rail, which is not completely filled by the bending tool. As a result, at least a portion of the coupling can be moved laterally next to the bending tool. This also opens up the possibility of gripping the bending tool from opposite sides.
    A preferred embodiment is characterized in that at least one inner wall of the rail forms a guide structure extending in the longitudinal direction of the rail, and that the coupling lies in or protrudes into the guide structure in at least one position. As a result, the transfer device and the clutch can be accommodated in a confined space. The guide structure provides a defined space for the clutch. It is conceivable that the coupling is only in the releasing or coupling position in the guide structure, or even that the coupling protrudes into the guide structure both in the releasing and in the coupling position.
    A preferred embodiment is characterized in that the bending tool is held in the rail by the same guide structure through which the transfer device (e.g., shuttle) is guided and / or in which the coupling extends. This is particularly advantageous since no separate guide structure has to be provided for the transfer device or the clutch. The bending tool is formed, for example, by holding means projecting from the shank of the bending tool, such as e.g. Pins, pins or strips held. The holding means protrude into the guide structure, whereby the bending tool is held in the rail. The holding means may also be movable and e.g. be moved by a Actuate-supply element of the bending tool (so-called safety pins) from a holding to a releasing position. This allows the insertion of the bending tools in a direction transverse to the longitudinal extent of the rail.
    The guide structure in the rail may also be configured to hold the transfer device in the rail. The guiding structure formed within the rail has a function of folding in addition to the guiding function along the longitudinal extent of the rail by holding the transfer means in (or inside) the rail. The transfer device is slidable along the guide structure (i.e., parallel to the longitudinal extent of the rail) and held in the direction perpendicular to the longitudinal extent of the rail (i.e., in the direction from the rail interior to the rail opening) by the guide structure. The guide structure thus prevents the transfer device from falling out of the rail.
    It is particularly preferred if existing guide structures within the rail can be used to guide the transfer device and to accommodate the coupling. Thus, the inventive principle can also be applied to existing systems without or with only minor adaptations.
    A preferred embodiment is characterized in that the coupling is formed by a mechanical gripper. As a result, a bending tool can be reliably coupled to the transfer device. Also, the release of the clutch is just in front of him; Above all, the danger that the bending tool. Hang on the transfer device "remains greatly reduced.
    A preferred embodiment is characterized in that the gripper comprises two gripping arms, which preferably lie completely within the rail. The gripping arms or their mechanics are thus completely protected. The service life of the clutch can be significantly increased.
    Preferably, the gripper arms extend in length substantially parallel to the longitudinal extent of the rail of the tool holder; and / or the pivot axis of the gripping arms is substantially perpendicular to the longitudinal extent of the rail and substantially parallel to the direction in which the rail opens.
    A preferred embodiment is characterized in that two opposite inner walls of the rail in each case at least one extending along the longitudinal extent of the rail guide structure, preferably in the form of a groove, and that - in at least one position of the clutch - a gripping arm in the one guide structure and the other gripping arm extends in the opposite guide structure. In this way, a gripper system can be realized in a confined space. The bending tool is contacted by the gripping arms on both sides and held non-positively. The guide structure formed in the inner wall provides enough space for the gripping movement.
    A preferred embodiment is characterized in that the bending tool is held in the same guide structures in which sit the gripping arms. Thus, no additional guide structure for the gripper arms must be created, but existing structures can be used.
    A preferred embodiment is characterized in that the gripper is biased by a spring in an open position. Accordingly, the drive mechanism for the clutch need only be designed to move the gripper into the closed, i.e. bring the bending tool coupling position. Thereby, the construction of the drive mechanism can be greatly simplified.
    A preferred embodiment is characterized in that the gripping arms are each formed by a lever and that between the levers, a movable, preferably wedge-shaped spreader is arranged, wherein the lever can be pressed apart by a movement of the spreader. Preferably, the spreading device is movable in a direction that is substantially parallel to the longitudinal extent of the rail, whereby the small available space is optimally taken into account
    A preferred embodiment is characterized in that those lever sections which cooperate with the bending tool are shorter than the lever sections cooperating with the spreading device. The lever sections are each to be seen in relation to the pivot point of the respective lever. By this measure, the gripping force can be increased by the leverage.
    A preferred embodiment is characterized in that the transfer device comprises a guided in the rail of the tool holder shuttle, in particular in the form of a carriage or carriage, and that the coupling is formed on the shuttle. The shuttle provides a stable and protective platform for the storage of the clutch and its drive mechanism.
    A preferred embodiment is characterized in that the coupling can be actuated by an actuator, preferably a cylinder-piston unit, preferably arranged in or on the shuttle.
    A preferred embodiment is characterized in that the shuttle has holding elements, which are guided by the same guide structure, in which also extends the coupling. Again, existing structures can be used to hold the shuttle.
    A preferred embodiment is characterized in that the transfer device comprises an elongate, preferably flexible tensile and / or pressure transmission means, in particular a belt, a rope, a rod or a chain, and that the shuttle to the tension and / or pressure transmission means is connected. By using a tension and / or pressure transmission means, the travel drive of the transfer device can be arranged far away from the tool holders. The transfer device can thereby also be designed low-weight and space-saving. The transmission means may be designed to transmit tensile forces or compressive forces or tensile and compressive forces. If the feeding or changing of the bending tools takes place only from egg nem end of the rail, a pull and pressure transmission means is used.
    In an alternative variant, the shuttle could also be self-propelled, with the travel drive being arranged in or on the shuttle. The transfer device can be constructed in this way particularly component-saving. The control of the shuttle could be wired, but also by radio.
    A preferred embodiment is characterized in that the tension and / or pressure transmission means is guided by a guide structure which is formed by an inner wall of the rail, wherein preferably the tension and / or pressure transmission means is guided in the same guide structure in which the Coupling extends.
    A preferred embodiment is characterized in that in the shuttle, a window is arranged through which the position of the clutch can be seen from the outside and / or through which the clutch can be actuated by an operator. In the event of a malfunction of the system, an operator can immediately recognize the coupling position and take appropriate measures.
    A preferred embodiment is characterized by a plurality of tool holders that form a bending tool storage, wherein preferably the tool holders are movable individually or in a cooperating composite relative to the transfer device. As a result, different tool holders can be 'started up' or driven through by the same transfer device.
    A preferred embodiment is characterized in that the loading device is a tool changer for exchanging one or more bending tools used in a bending press. In this variant, not only a loading of the bending press with bending tools, but there is also a provision of (no longer brought) bending tools from the bending press in the feeder or the tool changer. The tool changer is automated, i. verbun with a control device that controls the movement of the transfer device or the operation of the clutch and optionally the movement of the bending tool storage relative to the transfer device.
    A preferred embodiment is characterized in that the bending tool storage in the form of a shelf, a turntable, a traverser, a drum, a Paternoster lift and / or one or more racks is formed. This allows a variety of different bending tools are provided or changed.
    A preferred embodiment is characterized by at least two tool holders, one tool holder forming the upper tool holder and the other tool holder forming the lower tool holder.
    The object of the invention is also achieved with a method for feeding a bending press with bending tools and / or for replacing one or more bending tools used in a bending press with a loading device, wherein one or more bending tools by a transfer device between the tool holder of the feeder and the tool holder the bending press are moved, characterized in that the bending press and / or the charging device is designed according to one of the preceding claims / are, wherein the transfer device is moved with the coupling to a bending tool and the clutch from a releasing position in a position coupling the bending tool is brought.
    The invention also relates to an arrangement of a bending press and a feeding device coupled thereto for feeding the bending press with bending tools. Preferably, the rail of the bending press tool holder and the rail (connected thereto) of the feeder tool holder have the same guide structure, preferably the same inner profile. The guide structure of the bending press rail is - without change in profile - in the management structure of the feeder rail over, whereby a smooth transition of the transfer device can take place.
    The object of the invention is also achieved with a bending tool transfer device for displacing a bending tool in the tool holder of a bending press and / or a loading device, preferably in the form of a shuttle, comprising: a guide section designed for insertion into a rail of a tool holder having an inner profile is; and a releasable coupling for connecting a bending tool, wherein the effective range of the coupling is at least partially, preferably completely, on fleas of the guide part.
    That portion of the coupling which forms the effective area or contact surface (e.g., gripping surface) - i. is adapted to come into engagement with the bending tool - is disposed on the guide portion of the transfer device. When inserting into a rail of the tool holder then the effective range of the coupling is - at least partially - within the rail. The benefits of this and the following measures have already been discussed above; these are therefore not repeated again.
    Preferably, the coupling is formed by a mechanical gripper.
    Preferably, the gripper comprises two gripping arms, which are preferably arranged on opposite sides of the guide portion.
    Preferably, the gripper is biased by a spring in an open position.
    Preferably, the gripping arms are each formed by a lever and is arranged between the Fleiben a movable, preferably wedge-shaped spreading device, wherein the Flebel are apart by a movement of the spreader can be pressed.
    Preferably those lever portions which cooperate with the bending tool are shorter than the lever portions cooperating with the spreading means.
    A preferred embodiment is characterized in that the coupling can be actuated by an actuator arranged in or on the transfer device, preferably a cylinder-piston unit, wherein the actuator is preferably arranged outside the guide section. "Outside" in this context means that the actuator is e.g. can be arranged below the guide portion (in the case of an upper tool holder) or above (in the case of a lower tool holder). Of course, the actuator may be disposed within a body formed by the shuttle.
    A preferred embodiment is characterized in that the guide section has at least one laterally projecting flattening element for holding in a rail of a tool holder and that the coupling or the effective region of the coupling is arranged on the same fleas as the flanging element. As a result, the coupling and the flap elements can be guided or accommodated in the same guide structure of the rail.
    For a better understanding of the invention, this will be explained in more detail with reference to the following figures.
    In each case, in a highly simplified, schematic representation:
    Fig. 1 is a bending press;
    Fig. 2 shows an arrangement of a bending press and a loading device;
    3 shows a bending tool and a transfer device in the form of a shuttle with a coupling;
    4 shows a tool holder with inserted bending tool and transfer device;
    5 shows the tool holder from FIG. 2 in a perspective view; FIG.
    Fig. 6 is a view into the interior of the transfer device of Fig. 1;
    FIG. 7 shows a rail inner profile with a coupling arranged therein; FIG.
    8 shows a further variant of a rail inner profile;
    9 shows a further variant of a rail inner profile;
    10 shows the position of a tension and / or pressure transmission means within the rail;
    11 shows a transfer device, which extends in the upper tool holder and consists of a tension and / or pressure transmission means and a shuttle, which is coupled by means of a coupling to an upper tool.
    By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosures contained in the entire description can be mutatis mutandis to the same parts with the same reference numerals or component names. Also, the location information chosen in the description, such as top, bottom, side, etc. related to the immediately described and illustrated figure and these position information in a change in position mutatis mutandis to transfer to the new location.
    By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosures contained in the entire description can be mutatis mutandis to the same parts with the same reference numerals or component names. Also, the location information chosen in the description, such as top, bottom, side, etc. related to the immediately described and illustrated figure and these position information in a change in position mutatis mutandis to transfer to the new location.
    The embodiments show possible embodiments of the bending press or the charging device, it being noted at this point that the invention is not limited to the specifically illustrated embodiments thereof, but also various combinations of the individual from management variants are mutually possible and this variation possibility due to the teaching to technical action by objective invention in the skill of those working in this technical field expert.
    Furthermore, individual features or combinations of features from the different exemplary embodiments shown and described can also represent independent, inventive or inventive solutions.
    The task underlying the independent inventive solutions can be taken from the description.
    Above all, the individual embodiments shown in the figures can form the subject of independent solutions according to the invention. The relevant objects and solutions according to the invention can be found in the detailed descriptions of these figures.
    For the sake of order, it should finally be pointed out that, for a better understanding of the structure of the bending press or charging device, these or their components have been shown partially unevenly and / or enlarged and / or reduced in size.
    Fig. 1 shows a bending press 1, which should be noted at this point that a loading device 2 (Fig. 2) for loading a bending press 1 with bending tools 5, 6 equally - at least as regards the features of the invention - may be formed and that the following Embodiments equally applicable to a feeder 2 may apply.
    2 shows an arrangement of a bending press 1 and a feeding device 2 coupled thereto for feeding the bending press 1 with bending tools 5, 6. FIG. 2 shows a multiplicity of tool holders 13, 14 which form a bending tool store 23 of the feeding device 2. As indicated by the double arrow, the tool holders 13, 14 can be moved individually or in a cooperative composite relative to the transfer device 15 so that a transfer device 15 can move into different tool holders and move the bending tools stored there into the bending press 1. The loading device 2 is in this case a tool changer for replacing one or more bending tools 5, 6 used in a bending press 1. The bending tool store 23 may take the form of a shelf, a turntable, a traverser, a drum, a paternoster lift and / or one or more is formed of several racks.
    As can be seen from the figures, the bending press 1 and / or the loading device 2 comprises at least two tool holders 3, 4 and 13, 14, wherein one tool holder 3 or 13 forms the upper tool holder and the other tool holder 4 or 14 forms the lower tool holder.
    According to FIG. 2, the bending press 1 or loading device 2 comprises at least two transfer devices 15, which can be controlled independently of one another, wherein a transfer device 15 is assigned to the upper tool holder 3 or 13 and a transfer device 15 to the lower tool holder 4 or 14.
    It can be seen from FIGS. 1 and 2 in combination with FIG. 4 that bending press 1 and / or feeding device 2 have at least one tool holder 3, 4 or 13, 14 with a rail 7 having an inner profile 8 for receiving and displacing a Bending tool 5, 6 includes.
    A transfer device 15 which can be moved by a drive 21 (FIG. 2) along the longitudinal extension of the rail 7 serves to displace a bending tool 5, 6 within the tool holder 3, 4 or 13, 14 and / or between the tool holder 13, 14 of the loading device 2 and a tool holder 3, 4 of the bending press. 1
    3 to 6 show a transfer device 15 with a releasable coupling 18 for connecting a bending tool 5 (here: designed as an upper tool).
    The transfer device 15 is guided in the rail 7 of the tool holder 3, 4 and 13, 14. The effective range of the coupling 18 is at least partially in the interior of the rail 7. In the illustrated embodiment, the effective range of the coupling 18 is completely within the rail 7. The effective range is that Be rich releasable coupling 18, in the coupling position with the bending tool. 5 cooperates, ie comes with the bending tool in contact or engaged. The effective region is formed by at least one active surface or contact surface (in this case: by the gripping surfaces of a gripper), which bear against the bending tool in the coupling position.
    The bending tool transfer device 15 from FIG. 3 has a guide section 31, which is designed for insertion into the rail 7. The effective range of the coupling 18 is at least partially, preferably completely, on fleas of the guide part 31. When inserted into the rail 7 transfer device 15, this means that the effective range (at least partially) in the interior of the rail 7. The gripping arms 19 are arranged on opposite sides of the guide section 31. The guide section 31 has laterally projecting holding elements 20 for holding the transfer device within the rail 7. The coupling 18 or the effective range of the coupling 18 is arranged on the guide part 31 on the same fleas as the flanging element 20.
    An actuator 24 (FIG. 6) provided for actuating the clutch 18 is arranged not in, but outside (here: below) of the guide section 31, in particular for reasons of space.
    The principle of this embodiment is shown particularly clearly in FIG. 11. The guide structure 10 in the form of a groove in the inner wall of the rail 7 holds the transfer device 15, in particular the shuttle 22, as well as the bending tool 5. The coupling 18 - here with their gripping arms 19 - also extends in the guide structure 10th
    The coupling 18 is formed in the illustrated embodiment by a mechanical gripper with two gripping arms. As can be seen from Fig. 4, the gripping arms are completely within the rail 7. The clutch 18 formed by the gripping arms 19 extends in a region of the inner profile 8 of the rail 7, which is not completely filled by the bending tool 5. It can also be seen that at least one inner wall 9 of the rail 7 forms a guide structure 10 extending in the longitudinal direction of the rail 7 and that the coupling 18 lies with its gripping arms 19 -in at least one position-in the guide structure 10 or in the guide structure 10 protrudes.
    In the concrete embodiment, two opposing inner walls 9 of the rail 7 each form at least one guide structure 10 extending along the longitudinal extent of the rail 7 in the form of a groove, wherein - in at least one position of the coupling 18 - a gripper arm 19 in the one guide structure 10 and the other gripper arm 19 extends in the opposite guide structure 10. The gripping arms 19 extend in length substantially parallel to the longitudinal extent of the rail 7. The pivot axes of the gripping arms 19 are substantially perpendicular to the longitudinal extent of the rail 7 and substantially parallel to the direction in which the rail 7 opens.
    In FIG. 7, in addition to the position of the gripping arms 19 in the grooves, a clamping device 11 with discrete clamping elements 12 is indicated. The function of the clamping device 11 will be described in more detail with reference to FIG. 8. 17 denotes the rail opening.
    In FIG. 8, the guide structure 10 is formed by discrete guide elements which protrude from an inner wall 9 into the interior of the rail 7 and are arranged distributed in the longitudinal direction of the rail 7. In the illustrated embodiment, the bending press 1 and / or the loading device 2, a clamping device 11 for clamping the bending tool 5, 6 in the rail 7. The discrete guide elements are formed by drivable clamping elements 12 of the clamping device 11. The clamping members 12 are movable from a releasing (i.e., retracted) position to a bending (i.e., extended) position of the bending tool, e.g. by a pressurization device (indicated by a cylinder or piston-shaped design in Fig. 8). The coupling 18 or a gripping arm 19 can be guided by these clamping elements 12 or extend above the clamping elements 12.
    In FIG. 9, the guide structure 10 is formed by a wedge-shaped section of the inner profile 8 of the rail 7. The coupling 18 and the gripping arms 19 rest on the wedge-shaped section or extend above the wedge-shaped section.
    The bending tool 5 can be held in the same guide structure 10, in which a gripping arm 19 is seated. The bending tool is formed, for example, by holding means projecting from the shank of the bending tool, such as e.g. Pins, pins or strips held. The holding means protrude into the guide structure, whereby the bending tool is held in the rail. The holding means may also be movable and e.g. be moved from a holding to a releasing position by an actuating element of the bending tool (so-called safety pins).
    As already mentioned, the transfer device 15 can take the form of a shuttle 22 guided in the rail 7 of the tool holder 3, 4 or 13, 14, in particular in the form of a carriage or carriage (FIGS. 3 to 6). The coupling 18 is formed on the shuttle 22. The shuttle 22 of Fig. 3 has holding elements 20 which sit at the same height as the clutch 18 and are thus guided by the same guide structure 10, in which the coupling 18 extends.
    In the shuttle 22, a window 28 may be formed, through which the position of the clutch 18 can be seen from the outside and / or through which the clutch 18 can be actuated by an operator.
    Fig. 6 shows the interior of the shuttle 22, in particular an actuator 24 in the form of a cylinder-piston unit for actuating the clutch 18. The actuator 24 acts via a rod 25 with a (in the longitudinal direction of the rail 7) movable spreader 26 cooperates. The shuttle 22 also has a connection 30 for a pressure medium line. Alternatively or additionally, the shuttle could also have an electrical connection. The (electrical or pressure medium) line may extend or be held in or on an elongated tension and / or pressure transmission means 16.
    The gripping arms 19 are each formed by a lever. Between the levers is a wedge-shaped portion of the spreader 26. By a
    Movement of the spreader 26 in the direction of the front portion of the gripping arms 19, the rear lever portion is pressed apart. As a result, the front portions of the lever with the gripping surface move toward each other, whereby the bending tool is coupled or frictionally coupled.
    Those lever portions which cooperate with the bending tool 5 (i.e., form the gripping surface) are shorter than the lever portions cooperating with the spreader 26. The gripper of Fig. 6 is biased by a spring 27 in an open position.
    11 shows that the transfer device 15 can also comprise an elongated, preferably flexible tensile and / or pressure-transmitting means 16, in particular a band, a rope, a rod or a chain. The shuttle 22 is connected to the tension and / or pressure transmission means 16. For this purpose, the shuttle 22 may have a connection 29 (FIG. 3).
    FIG. 10 shows in combination with FIG. 7 the possibility that the tension and / or pressure transmission means 16 can be guided in the same guide structure 10 in which the coupling 18 extends.
    The method for feeding a bending press 1 with bending tools 5, 6 and / or for exchanging one or more bending tools 5, 6 with a loading device 2 used in a bending press 1 can proceed as follows: The transfer device 15 with the coupling 18 is attached to a bending tool 5 , 6 moved up. The coupling 18 is brought from a releasing position into a bending tool 5, 6 coupling position. Subsequently, one or more bending tools 5, 6 are displaced by the transfer device 15 between the tool holder 13, 14 of the loading device 2 and the tool holder 3, 4 of the bending press 1. The direction of movement of the transfer device 15 is indicated in Fig. 11 by a double arrow.
    LIST OF REFERENCE NUMERALS 1 Bending press 28 Window 2 Feeding device 29 Connection 3 Tool holder 30 Connection 4 Tool holder 31 Guide section 5 Bending tool (upper tool) 6 Bending tool (lower tool) 7 Rail 8 Inner profile 9 Inner wall 10 Guide structure 11 Clamping device 12 Clamping element 13 Tool holder 14 Tool holder 15 Transfer device 16 Pull and / or pressure transmission means 17 Rail opening 18 Coupling 19 Gripping arm 20 Flaltelement 21 Drive 22 Shuttle 23 Bending tool storage 24 Actuator 25 Rod 26 Spreader 27 Spring
    权利要求:
    Claims (28)
    [1]
    1. Bending press (1) and / or feeding device (2) for feeding a bending press (1) with bending tools (5, 6), comprising: - at least one tool holder (3, 4; 13, 14) with an inner profile (8 ) having rail (7) for receiving and moving a bending tool (5, 6); and - at least one transfer device (15) drivable by a drive (21) for displacing a bending tool (5, 6) within the tool holder (3, 4, 13, 14) and / or between the tool holder (13, 14) of the loading device ( 2) and a tool holder (3, 4) of a bending press (1), wherein the transfer device (15) comprises a releasable coupling (18) for connecting a bending tool (5, 6), characterized in that the transfer device (15) in the Rail (7) of the tool holder (3, 4, 13, 14) is guided and the effective range of the coupling (18) at least partially in the interior of the rail (7).
    [2]
    2. bending press and / or charging device according to claim 1, characterized in that the effective range of the coupling (18) lies completely within the rail (7).
    [3]
    3. bending press and / or charging device according to claim 1 or 2, characterized in that the coupling (18) in a region of the inner profile (8) of the rail (7) which is not completely filled by the bending tool (5, 6) ,
    [4]
    4. bending press and / or charging device according to one of the preceding claims, characterized in that at least one inner wall (9) of the rail (7) in the longitudinal direction of the rail (7) extending guide structure (10) is formed and that the coupling (18) - In at least one position of the coupling (18) - in the guide structure (10) or projects into the guide structure (10).
    [5]
    5. bending press and / or charging device according to one of the preceding claims, characterized in that the coupling (18) is formed by a mechanical gripper.
    [6]
    6. bending press and / or feeding device according to claim 5, characterized in that the gripper comprises two gripping arms (19), which are preferably completely within the rail (7).
    [7]
    7. Bending press and / or charging device according to claim 6, characterized in that two opposite inner walls (9) of the rail (7) each have at least one along the longitudinal extent of the rail (7) extending guide structure (10), preferably in the form of a groove, form and that - in at least one position of the coupling (18) - a gripping arm (19) in the one guide structure (10) and the other gripper arm (19) in the opposite guide structure (10).
    [8]
    8. bending press and / or charging device according to claim 7, characterized in that the bending tool (5, 6) is held in the same guide structure 10 in which a gripping arm (19) sits.
    [9]
    9. bending press and / or charging device according to one of claims 5 to 8, characterized in that the gripper is biased by a spring (27) in an open position.
    [10]
    10. bending press and / or charging device according to one of claims 6 to 8, characterized in that the gripping arms (19) are each formed by a lever and that between the Fleiben a movable, preferably wedge-shaped spreading device (26) is arranged, wherein the lever by a movement of the spreader (26) are apart printable.
    [11]
    11. bending press and / or charging device according to claim 10, characterized in that those lever portions which cooperate with the bending tool (5, 6), are shorter than the with the spreading device (26) cooperating lever sections.
    [12]
    12. Bending press and / or feeding device according to one of the preceding claims, characterized in that the transfer device (15) in the rail (7) of the tool holder (3, 4; 13, 14) guided shuttle (22), in particular in the form of a Carriage or carriage, and in that the coupling (18) is formed on the shuttle (22).
    [13]
    13. Bending press and / or charging device according to claim 12, characterized in that the coupling (18) by a preferably in or on the shuttle (22) arranged actuator (24), preferably a cylinder-piston unit, is actuated.
    [14]
    14. Bending press and / or charging device according to claim 12 or 13, characterized in that the shuttle (22) holding elements (20) which are guided by the same guide structure (10) in which also extends the coupling (18).
    [15]
    15. bending press and / or charging device according to one of claims 12 to 14, characterized in that the transfer device (15) is an elongated, preferably flexible tension and / or pressure transmission means (16), in particular a belt, a rope, a rod or a Chain, and that the shuttle (22) is connected to the tension and / or pressure transmission means (16).
    [16]
    16. bending press and / or charging device according to claim 15, characterized in that the tension and / or pressure transmission means (16) is guided by a guide structure (10) which is formed by an inner wall (9) of the rail (7), wherein Preferably, the tension and / or pressure transmission means (16) in the same guide structure (10) is guided, in which the coupling (18) extends.
    [17]
    17. bending press and / or charging device according to one of claims 12 to 16, characterized in that in the shuttle (22) a window (28) is formed, through which the position of the coupling (18) can be seen from the outside and / or by the clutch (18) is operable by an operator.
    [18]
    18. Bending press and / or charging device according to one of the preceding claims, characterized by a plurality of tool holders (3, 4; 13, 14) which form a bending tool store (23), wherein preferably the tool holders (3, 4; 13, 14) individually or in a cooperative composite relative to the transfer device (15) are movable.
    [19]
    19. A method for feeding a bending press (1) with bending tools (5, 6) and / or for replacing one or more bending tools (5, 6) used in a bending press (1) with a loading device (2), wherein one or more Bending tools (5, 6) are moved by a transfer device (15) between the tool holder (13, 14) of the loading device (2) and the tool holder (3, 4) of the bending press (1), characterized in that the bending press (1) and / or the charging device (2) is / are formed according to one of the preceding claims, wherein the transfer device (15) with the coupling (18) to a bending tool (5, 6) is moved up and the clutch (18) from a releasing position in a bending tool (5, 6) coupling position is brought.
    [20]
    20. Arrangement of a bending press (1) and a feed device (2) coupled thereto for feeding the bending press (1) with bending tools (5, 6), characterized in that the bending press (1) and / or the loading device (2) according to one of Claims 1 to 18 is formed / are.
    [21]
    21. Bending tool transfer device (15) for moving a bending tool (5, 6) in the tool holder (3, 4, 13, 14) of a bending press (1) and / or a loading device (2), preferably in the form of a shuttle (22 ), comprising: - a guide section (31) adapted for insertion into a rail (7) of a tool holder (3, 4; 13, 14) which has an internal profile (9); and - a releasable coupling (18) for connecting a bending tool (5, 6), characterized in that the active region of the coupling (18) is at least partially, preferably completely, on fleas of the guide part (31).
    [22]
    22. Bending tool transfer device according to claim 21, characterized in that the coupling (18) is formed by a mechanical gripper.
    [23]
    23. bending tool transfer device according to claim 22, characterized in that the gripper comprises two gripping arms (19), which are preferably arranged on opposite sides of the guide portion (31).
    [24]
    24. bending tool transfer device according to one of claims 22 or 23, characterized in that the gripper is biased by a spring (27) in an open position.
    [25]
    25. bending tool transfer device according to claim 23 or 24, characterized in that the gripping arms (19) are each gebil det by a Flebel and that between the levers a movable, preferably wedge-shaped spreading device (26) is arranged, wherein the lever by a movement the spreader (26) are pressed apart.
    [26]
    26. bending tool transfer device according to claim 25, characterized in that those lever portions which cooperate with the bending tool (5, 6), are shorter than the cooperating with the spreading device (26) lever portions.
    [27]
    27. bending tool transfer device according to one of claims 21 to 26, characterized in that the coupling (18) by an in or on the transfer device (15) arranged actuator (24), preferably a cylinder-piston unit, is operable, wherein Preferably, the actuator (24) outside the guide portion (31) is arranged.
    [28]
    28. Bending tool transfer device according to one of claims 21 to 27, characterized in that the guide section (31) has at least one laterally projecting holding element (20) for holding in a rail (7) of a tool holder (3, 4; 13, 14) and that the coupling (18) or the effective range of the coupling (18) is arranged at the same height as the holding element (20).
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    同族专利:
    公开号 | 公开日
    WO2016074011A1|2016-05-19|
    EP3218126B1|2019-04-10|
    US20170320123A1|2017-11-09|
    AT516043B1|2016-02-15|
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    US10596615B2|2020-03-24|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE3546876C2|1984-04-07|1997-07-17|Amada Co|Press brake|
    US5168745A|1989-04-10|1992-12-08|Yamazaki Mazak Kabushiki Kaisha|Die exchange apparatus for the use of a press brake|
    JP2003211223A|2002-01-16|2003-07-29|Amada Co Ltd|Bending device|AT517597A4|2016-03-07|2017-03-15|Trumpf Maschinen Austria Gmbh & Co Kg|Method for simultaneous displacement of at least two, held in a rail of a tool holder bending tools|JPS5315978B2|1975-06-24|1978-05-29|
    DE2844867A1|1978-10-14|1980-04-30|Wieger Maschbau|Folding press with magazine for range of tools - enables tools to be changed quickly by moving magazine in line with cross-beam|
    JPH0153130B2|1981-04-28|1989-11-13|Amada Co Ltd|
    JPS58119926U|1982-02-04|1983-08-16|
    JPS60244426A|1984-05-17|1985-12-04|Amada Co Ltd|Replacing device of metallic die for bending machine|
    DE3578390D1|1984-12-29|1990-08-02|Maru Kikai Kogyo|DEVICE FOR ADJUSTING THE TOOL LENGTH OF BENDING MACHINES.|
    JPS6257717A|1985-09-06|1987-03-13|Mitsubishi Electric Corp|Automatic metal die changing device for pess brake|
    JPH02268922A|1989-04-10|1990-11-02|Yamazaki Mazak Corp|Automatic die changing device for press brake|
    JPH0539780Y2|1989-06-28|1993-10-08|
    US5121623A|1990-02-21|1992-06-16|Verson, A Division Of Allied Products Corporation|Method for changing transfer fingers in a transfer press|
    JPH0584414U|1992-04-13|1993-11-16|株式会社アマダ|Automatic mold changer for bending machine|
    JP3268914B2|1993-10-22|2002-03-25|株式会社アマダ|Mold changing method and apparatus in press brake|
    DE19643163A1|1996-10-18|1998-04-23|Amada Gmbh|Tool changing device for a forming press and forming press tool changing device arrangement|
    JP2001150032A|1999-09-06|2001-06-05|Amada Eng Center Co Ltd|Method and device for mold exchange in the bending machine|
    IT1311880B1|1999-11-30|2002-03-19|Luciano Gasparini|SUPPORT AND LOCKING DEVICE WITH SAFETY FUNCTION AT LEAST ONE INTERCHANGEABLE TOOL, PARTICULARLY IN A MACHINE|
    WO2002013987A1|2000-08-11|2002-02-21|Amada Company, Limited|Bending method and device therefore|
    JP4367692B2|2003-06-06|2009-11-18|株式会社アマダ|Bending machine|
    US7168286B1|2005-10-29|2007-01-30|Pelech Bruno J|Device and method for securing a punch tool to a ram portion of a press brake|
    ES2357018T3|2006-06-07|2011-04-15|Wila B.V.|RECEIVING TOOL AND STRUCTURE, INCLUDING A DATA EXCHANGE SYSTEM.|
    US8141408B2|2007-12-04|2012-03-27|Mccauley Kirk Allen|Holder for press dies|
    AT509980B1|2010-12-20|2012-01-15|Trumpf Maschinen Austria Gmbh|MANUFACTURING SYSTEM WITH TOOL MEMORY|
    AT510409B1|2011-02-01|2012-04-15|Trumpf Maschinen Austria Gmbh & Co Kg|MANUFACTURING DEVICE WITH TOOL POSITION DETECTION MEANS AND METHOD OF OPERATING THEREOF|
    JP5759274B2|2011-06-06|2015-08-05|株式会社アマダホールディングス|Press brake and bending method|
    US8752410B2|2011-07-23|2014-06-17|Wilson Tool International Inc.|Tooling assemblies and systems|
    JP6334081B2|2012-02-27|2018-05-30|株式会社アマダホールディングス|Mold detection system and method|
    CN104105555B|2012-04-27|2016-02-24|村田机械株式会社|The mould rack of squeezer|
    JP2014004604A|2012-06-25|2014-01-16|Amada Co Ltd|Mold mounting stocker, mold storage device, mold and hand storage device, mold exchange method by robot and control device for the same|
    NL2009340C2|2012-07-06|2014-01-07|Wila Bv|TOOLS AVAILABLE TOOLS.|
    AT514929B1|2013-11-26|2015-05-15|Trumpf Maschinen Austria Gmbh|Tooling system for bending press|
    AT516690B1|2015-01-08|2016-12-15|Trumpf Maschinen Austria Gmbh & Co Kg|Feeding device for a bending press|
    AT516624B1|2015-05-12|2016-07-15|Felder Kg|Tool magazine and arrangement with such|
    AT517387B1|2015-07-08|2017-03-15|Trumpf Maschinen Austria Gmbh & Co Kg|Bending tool storage device|
    AT517353B1|2015-07-08|2017-01-15|Trumpf Maschinen Austria Gmbh & Co Kg|Bending tool storage|
    AT517706B1|2015-10-20|2017-04-15|Trumpf Maschinen Austria Gmbh & Co Kg|bending machine|
    AT517597B1|2016-03-07|2017-03-15|Trumpf Maschinen Austria Gmbh & Co Kg|Method for simultaneous displacement of at least two, held in a rail of a tool holder bending tools|
    AT519228B1|2016-12-20|2018-05-15|Trumpf Maschinen Austria Gmbh & Co Kg|Bending tool for a bending press|
    AT519354B1|2017-01-31|2018-06-15|Trumpf Maschinen Austria Gmbh & Co Kg|Bending tool storage device|
    AT519480B1|2017-02-08|2018-07-15|Trumpf Maschinen Austria Gmbh & Co Kg|Bending tool storage device|DK2939753T3|2014-04-30|2017-02-27|Salvagnini Italia Spa|Plate Bending Machine|
    PL2946846T3|2014-05-23|2018-02-28|Felder Kg|Tool changing device for a forming press|
    DE102014116386A1|2014-11-10|2016-05-12|Trumpf Maschinen Austria Gmbh & Co.Kg.|Bending press and feeding device for a bending press|
    AT521173B1|2018-06-27|2019-11-15|Trumpf Maschinen Austria Gmbh & Co Kg|Bending tool with spacer element|
    WO2020142027A1|2018-12-31|2020-07-09|Durmazlar Makina Sanayi Ve Ticaret Anonim Sirketi|An auxiliary bending tool for bending machines|
    CN111872171B|2020-06-11|2021-06-01|苏州富强科技有限公司|Fracture subassembly with auxiliary material and work piece phase separation|
    CN112706035A|2020-12-31|2021-04-27|深圳市康铨机电有限公司|Be applied to supplementary tool of thimble abrasive machining|
    CN113319180B|2021-05-19|2022-01-18|江苏迈克尔电子科技有限公司|Press forming device for manufacturing industrial automatic control device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50827/2014A|AT516043B1|2014-11-12|2014-11-12|Bending press and feeding device for a bending press|ATA50827/2014A| AT516043B1|2014-11-12|2014-11-12|Bending press and feeding device for a bending press|
    EP15813234.0A| EP3218126B1|2014-11-12|2015-11-12|Feeding device and bending press and arrangement of bending press with a coupled feeding device and feeding process of a bending press|
    US15/526,387| US10596615B2|2014-11-12|2015-11-12|Bending press and/or feeding device for a bending press with a bending tool transfer device|
    PCT/AT2015/050287| WO2016074011A1|2014-11-12|2015-11-12|Bending press and/or feeding device for a bending press with a bending tool transfer device|
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