• 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 tool changing device (14) for a press brake (2). The tool changing device (14) comprises a tool carrier (16) which has a receiving recess (18) for receiving bending tools (6), wherein the bending tools (6) between the tool carrier (16) and one in a pressing bar (4, 7) of the A manipulating device (19) for manipulating the tool carrier (16) between a tool changing position (20) in which the tool carrier (16) is arranged next to the tool holder (5) around the bending tools (16). 6) of the tool carrier (16) in the tool holder (5) to move, and a tooling position (21), in which the tool carrier (16) in the region of a tool storage (15) for loading with bending tools (6) is arranged. The manipulation device (19) has a first manipulation arm (24) and a second manipulation arm (25), wherein on the first manipulation arm (24) a first coupling device (26) and on the second manipulation arm (25) a second coupling device (27) for receiving the Tool carrier (16) are formed.
    公开号:AT518255A4
    申请号:T50100/2016
    申请日:2016-02-17
    公开日:2017-09-15
    发明作者:
    申请人:Trumpf Maschinen Austria Gmbh & Co Kg；
    IPC主号:
    专利说明:

    The invention relates to a tool changing device for a press brake.
    From AT 511 078 B1 a tool change system is known, wherein the tool change is performed with the backgauge.
    The tool change by means of the backgauge takes a lot of time.
    The present invention has for its object to provide an improved tool change system with which the tool change can be performed as quickly and efficiently.
    This object of the invention is solved by the features according to claim 1. Furthermore, a method for carrying out a tool change on a press brake is specified in claim 13.
    According to the invention, a tool changing device is designed for a press brake. The tool changing device comprises a tool carrier, which has a receiving recess for receiving bending tools, wherein the bending tools are displaceable between the tool carrier and a tool holder formed in a pressing beam of the press brake; a manipulation device for manipulating the tool carrier between a tool change position, in which the tool carrier is arranged next to the tool holder to move the bending tools from the tool holder in the tool holder, and a tooling position, in which the tool carrier is arranged in the region of a tool storage for loading with bending tools. The Manipulationsvor device has a first manipulation arm and a second manipulation arm, wherein the first manipulation arm, a first coupling device and the second manipulation arm, a second coupling device for receiving the tool carrier are formed.
    An advantage of the design according to the invention is that the bending tools can be pre-equipped in the tool carrier and the tool carrier can then be moved by means of the manipulation device from the tool change position to the tooling position. By the two manipulation arms of the manipulation device, two of the tool carrier can be picked up by the manipulation device, whereby it is possible for the manipulation device to accommodate a tool carrier located in the tool change position on the first manipulation arm of the manipulation device and already engage on the second manipulation arm of the manipulation device second tool carrier is prepared with to be equipped bending tools in order to use it as quickly as possible in the tool change position can.
    Furthermore, it may be expedient if both manipulation arms have a linear adjustment, by means of which the two coupling devices are independently displaceable in the vertical direction. The advantage here is that the tool holder can be used by this measure in the vertical direction in the tool change position or in the tooling position. In particular, a specific movement of the tool carrier can be achieved by the independent displacement of the coupling devices in order to use the tool carrier in the tool change position or in the tooling position even in tight conditions.
    Furthermore, it can be provided that at least one of the manipulation arms has a guide carriage on which the coupling device is arranged, wherein the guide carriage is coupled to a drive device, in particular a pneumatic cylinder. The advantage here is that the coupling device can be guided by the guide carriage positional accuracy.
    In addition, it can be provided that at least one further drive device, in particular a further pneumatic cylinder, is formed, by means of which the drive device of the guide carriage is displaceable, whereby a telescopic function is formed. The advantage here is that the largest possible displacement can be achieved by this measure with the least possible space.
    Also advantageous is an embodiment according to which it can be provided that both manipulation arms are arranged on a manipulation arm receptacle, wherein the manipulation arm receptacle are rotatably mounted relative to a base frame of the manipulation device. The advantage here is that the orientation of the bending tools or the order of the bending tools in the tool holder of the press brake can be changed by a rotation of the tool holder by 180 °.
    According to a development, it is possible that the coupling device comprises a first actuating element and a second actuating element which are displaceable in the horizontal direction between a rest position and an actuating position by means of a first actuator and a second actuator, whereby the tool carrier releasable or lockable with the coupling device is. The advantage here is that by this measure the tool carrier can be automatically added to the manipulation device.
    Furthermore, it may be expedient if a first locking element and a second locking element are formed on the tool carrier, which each have at least one locking pin, which are mounted for engagement in a arranged in the tool changing position or in the tooling position pin receptacle slidably in the locking element, wherein the locking pin means the actuating elements are displaceable. The advantage here is that the workpiece carrier can be accommodated by means of the locking elements or the locking pin in the tool change position or in the tooling position.
    In addition, it can be provided that a Mitneh-merzapfen is formed on the locking pin, which is formed projecting in the direction of actuation elements, and that in the actuators a corresponding with the driving pin recess is formed. The advantage here is that by the driver pin or the corresponding recess in the actuators a coupleable connection between actuators and locking elements can be created.
    Furthermore, it can be provided that a slot-shaped recess is formed in the actuating element, which has an extension in an insertion region, and that a holding pin is arranged on the tool carrier, which has a Fixtierkopf with a groove-shaped recess, wherein a width of the slot-shaped recess in the actuating element slightly larger is as the main dimension of the groove bottom of the groove-shaped recess and wherein the inside diameter of the extension is slightly larger than an outer dimension of the fixing of the retaining pin. This allows the actuating element at the same time as a locking element, wherein the retaining pin of the tool carrier is used in the extension of the actuating element in this and can be achieved by displacement of the actuating element, a locking of the retaining pin in the actuating element.
    According to a particular embodiment, it is possible that in the receiving recess a securing hook is formed which is pivotally mounted about a pivot point on the tool carrier, wherein the safety hook on a first lever arm has a safety nose, which acts as a mechanical stop in a securing position and thus the displacement prevents the bending tools, and the safety hook is recessed in a release position in the tool carrier, so that the bending tools can be pushed laterally out of the tool carrier, wherein the safety hook is pressed by a spring element in its release position and can be pressed by means of the actuating element in the securing position. The advantage here is that a fall out of the bending tools from the tool carrier can be avoided as best as possible by the safety hook. This may be necessary in particular if the tool carrier is accelerated or braked during the manipulation with high acceleration values and thereby the bending tools would fall out of the tool carrier.
    According to an advantageous development can be provided that on one side of the pivot point of the safety hook of the first lever arm is formed and that on a second side of the pivot point, a second lever arm is formed, wherein the spring element is designed as a compression spring, which on an underside of the second lever arm acts and thereby the safety catch is pressed into its release position and that on the actuating element an actuating nose is formed, which acts on the first lever arm of the safety hook, being pressed in the operating position of the actuating element of the safety hook in its release position and in the rest position of the actuating element of the safety hook in its securing position is pressed. The advantage here is that the safety hook can be activated or deactivated simultaneously with the movement of the actuators and thus no separate drive for adjusting the safety hook is necessary.
    In the method for carrying out a tool change on a press brake, it is provided that the method comprises the following method steps: providing a first tool carrier, which is designed to accommodate bending tools, wherein the first tool carrier is received on a first manipulation arm of a manipulation device; - Loading the first tool carrier with stored in the tool storage bending tools; - Providing a second tool carrier at the tool change position, in which the tool carrier is arranged next to the tool holder; - Moving the recorded in a tool holder of the press brake bending tools in the second tool carrier; - Receiving the second tool carrier by means of a second manipulation arm of the manipulation device; - Positioning of the first tool carrier in the tool change position by means of the first manipulation arm of the manipulation device; - Store the first tool carrier in the tool change position; - Transporting the second tool carrier in a tooling position, in which the tool carrier is arranged in the region of a tool storage for loading with bending tools.
    This method has the advantage that a tool change with the indicated method steps can be performed quickly and easily.
    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:
    1 shows an embodiment of a press brake in a front view.
    FIG. 2 shows an exemplary embodiment of a tool changing device in a first perspective view; FIG.
    FIG. 3 shows the tool changing device according to FIG. 2 in a further perspective view; FIG.
    4 shows an embodiment of a tool carrier in a sectional view;
    5 shows a perspective detailed view of the tool carrier according to FIG. 4 in a sectional illustration;
    Fig. 6 is an exploded perspective view of a manipulation device and the tool carrier;
    7 is an exploded perspective view of the manipulation device and the tool carrier in a sectional view;
    8 is a detailed view of a coupling device with tool carrier and manipulation device in a sectional representation;
    9a-e a sequence of individual process steps in a tool change.
    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, 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.
    Fig. 1 shows a schematic representation of the front view of a processing plant 1. The processing plant 1 comprises a press brake 2, which is provided for bending a sheet 3.
    The press brake 2 further comprises a first fixed pressing beam 4, in which a tool holder 5 is formed for receiving a bending tool 6. Furthermore, the press brake 2 comprises a second adjustable pressing beam 7 on which also a tool holder 5 for receiving a bending tool 6 is formed.
    The sheet 3 to be bent is inserted for the bending operation between the bending tools 6 of the first 4 and the second pressing beam 7. The bending tool 6, respectively the second pressing beam 7, fixed in the second pressing beam 7 is moved upwards or downwards in the vertical direction by a press drive unit 8. For controlling the press drive unit 8, a computer unit 9 is provided, to which an input and / or display unit 10 can be coupled.
    From Fig. 1 it is further apparent that the bending tool 6 has a tool body 11 which deforms the sheet 3 to be bent during the bending operation. The bending tool 6 can be positio ned in the tool holder 5 in the horizontal direction of displacement 12 along the clamping portion of the tool holder 5. For this purpose, the bending tool 6 can be inserted laterally into the tool holder 5 of the pressing bars 4 or 7 in the horizontal displacement direction 12.
    In the tool holder 5, a plurality of bending tools 6, which are of similar construction, can be positioned next to one another and connected to one another. It can thus be achieved that bending edges 13 of individual bending tools 6 form a correspondingly long machining edge.
    Another possibility for the arrangement of bending tools 6 is that in the tool holder 5 a plurality of different bending tools 6 are positioned. These different bending tools 6 are then used for various bending operations and can also be replaced individually. If bending tools 6 of different types are used for different working steps, then it is usual for them to be arranged at a certain distance from each other.
    In order to provide the most flexible processing plant 1 available, it is necessary that the bending tools 6 can be easily and quickly clamped in the tool holder 5 and taken out of this again. This can be realized by means of a tool changing device 14 which is designed as described in this document. The tool changing device 14 can be used both for changing the bending tools 6 of the fixed press bar 4 and the bending tools 6 of the adjustable press bar 7.
    The tool changing device 14 may be coupled to a tool storage 15 in which the bending tools 6 are stored. As can be seen from FIG. 1, it is provided that the tool changing device 14 has a tool carrier 16, which is designed to receive one or more bending tools 6. For equipping bending tools 6 on the press brake 2, a collection device 17 may be provided, by means of which a plurality of bending tools 6 can be inserted simultaneously from the tool carrier 16 into the tool holder 5 of the two pressing bars 4, 6. Through this
    Measure the bending tools 6 can be prepared and arranged in the tool carrier 16 in the order provided. As a result, the actual set-up time can be shortened during a tool change and thus the efficiency of the processing system 1 can be improved. In this case, a receiving recess 18 may be provided in the tool holder 16 in which the bending tools 6 can be added or used.
    In particular, it may be provided that for removing a plurality of bending tools 6 from the processing installation 1, these are displaced into a prepared tool carrier 16. The tool carrier 16 can then be transported by means of a manipulation device 19 of the tool changing device 14 in the tool storage 15 and stored there or emptied and equipped with new bending tools 6. In a further method step, provision can be made for a further tool carrier 16 to be prepared with bending tools 6 necessary for further processing steps. This further tool carrier 16 can then be placed next to the tool holder 5 of the press brake 2 in order subsequently to be able to displace the bending tools 6 arranged thereon into the tool holder 5.
    For the sake of completeness, it is pointed out that a tool changing device 14 for changing the bending tools 6 of the first press beam 4 is shown and described in the exemplary embodiments. However, it should be noted that a tool changing device 14 for changing the bending tools 6 of the second press bar 7 may be constructed analogously to this and of course also covered in the invention.
    As can further be seen from FIG. 1, the tool carrier 16 can be moved by means of the manipulation device 19 between a tool changing position 20 and a tool loading position 21.
    The tool change position 20 is the position of the tool carrier 16 in which this is located next to the tool holder 5 of the press brake 2. If the tool carrier 16 is in its tool change position 20, then the bending tools 6 can either be moved from the tool carrier 16 into the tool holder 16
    Tool holder 5 or be moved from the tool holder 5 in the tool carrier 16.
    The tooling position 21 is the position of the tool carrier 16 in which it is located in the area of the tool store 15. When the tool carrier 16 is in its tooling position 21, then bending tools 6 can be moved from the tool store 15 into the tool carrier 16 or bending tools 6 can be moved from the tool carrier 16 into the tool store 15. Furthermore, it is also conceivable that as tooling position 21 that position is referred to in which the tool holder 16 is temporarily stored in the tool memory 15.
    FIGS. 2 and 3 show, in perspective view from different angles of view, another embodiment of the tool changing device 14, which may be independent of itself, wherein the same reference numerals or component designations are used again for the same parts as in the preceding FIG. In order to avoid unnecessary repetition, reference is made to the detailed description in the preceding figure 1 or reference.
    As can be seen from FIG. 2, it can be provided that the tool changing device 14 has a base frame 22 on which a manipulation arm receptacle 23 with a first manipulation arm 24 and a second manipulation arm 25 are arranged, the two manipulation arms 24, 25 being designed to receive the tool carriers 16 , In particular, it can be provided that the first manipulation arm 24 has a first coupling device 26, by means of which the tool carrier 16 can be removably received on the first manipulation arm 24. Analogously, it can be provided that the second manipulation arm 25 has a second coupling device 27, by means of which the tool carrier 16 can be removably received on the second manipulation arm 25.
    The two manipulation arms 24, 25 may each have a linear adjustment 28, by means of which the two coupling devices 27, 28 and thereby the other manipulation arms 24, 25 received tool carrier 16 are independently displaceable in the vertical direction 29. In particular, it can be provided that the two manipulation arms 24, 25 each have a guide unit 30, by means of which coupling devices 27, 28 are guided in the vertical direction 29.
    It can be achieved by means of the guide unit 30 that the coupling devices 27, 28 have a high rigidity and can therefore be moved or positioned precisely in position. The guide unit 30 can be realized, for example, by means of guide rails, on each of which one of the coupling devices 27, 28 is arranged, wherein the guide rails can be guided in a rail receptacle which can be arranged on the manipulation arm receptacle 23. The connection between guide rails and rail support can be realized for example by a positive sliding surface guide or by a ball guide.
    Furthermore, it can be provided that the coupling devices 27, 28 are displaced by means of a drive device 31 in the vertical direction 29. The drive device 31 may be formed for example by a pneumatic cylinder. Such a pneumatic cylinder, for example, be installed in the manipulation device 19, that the coupling device 27, 28 is operatively connected to a piston rod of the pneumatic cylinder and the housing of the pneumatic cylinder is operatively connected to the Manipulatorsarmaufnahme. Furthermore, it can be provided that a further drive device 32 is designed in the form of a further pneumatic cylinder, which is the first Peumatikzy-linder upstream, whereby a telescopic action of the adjustment of the coupling devices 27, 28 can be achieved and thus the largest possible adjustment with the smallest possible space can be achieved.
    In an alternative embodiment, it is also conceivable that the drive device 31 is designed, for example, in the form of a servomotor and thus has a larger path.
    Furthermore, it can be provided that the manipulation arm receptacle 23, together with the manipulation arms 24, 25 arranged thereon, is received rotatably on the base frame 22. In particular, provision may be made for a bearing arrangement 33, in which the manipulation arm receptacle 23 is received, to be formed centrally of the base frame 22. It can be provided that the Manipulationsarmaufnahme 23 by means of this bearing assembly 33 at least an angle of 180 ° is pivotable. Furthermore, it can be provided that a rotary drive 34 is formed, which is coupled by means of an intermediate gear or directly with the Manipulationsarmaufnahme 23 in order to rotate them.
    As can further be seen from FIGS. 2 and 3, it can also be provided that the base frame 22 of the manipulation device 19 is displaceably arranged in the processing installation 1 by means of a linear guide 35 in order to move the tool carrier 16 between the tool change position 20 and the tooling position 21 by means of the manipulation device 19 to be able to move. The linear guide 35 may also be designed in the form of a second guide or in the form of a ball guide. Furthermore, a linear drive 36 may be formed, by means of which the base frame 22 can be moved. The linear drive 36 may be formed for example by a toothed belt which is coupled to the base frame 22 between a drive station and a deflection station is guided.
    In an alternative embodiment, the linear drive 36, for example, by means of a pinion, which engages in a rack executed.
    FIG. 4 shows in a sectional view and in FIG. 5 a perspective sectional view of a further and optionally independent embodiment of the tool changing device 14, wherein the same reference numerals or component designations are used again for the same parts as in the preceding FIGS , To avoid unnecessary repetition, reference is made to the detailed description in the preceding figures 1 to 3 or reference.
    The further description of the figures relates to a synopsis of FIGS. 4 and 5. In these figures, a sectional view of one of the two manipulation arms 24, 25 is shown, wherein both manipulation arms 24, 25 can be of identical construction and therefore for the sake of brevity a description or representation is dispensed with the individual manipulation arms 24, 25.
    In the sectional views of Figures 4 and 5, the receiving recess 18, which may be arranged in the tool carrier 16 can be particularly clearly visible.
    As can also be seen from FIGS. 4 and 5, it can be provided that the coupling devices 27, 28 each have a first actuating element 37 and a second actuating element 38. The two actuating elements 37, 38 can be designed to be displaceable on the coupling devices 27, 28 in the horizontal displacement direction 12. Furthermore, it can be provided that the first actuating element 37 is coupled to a first actuator 39 and the second actuating element 38 is coupled to a second actuator 40. The two actuators 39, 40 may be designed in the form of pneumatic cylinders, it being possible to provide that the actuating elements 37, 38 are respectively arranged on a piston rod 41, 42 of the actuators 39, 40 and are held directly therefrom.
    By means of the actuators 39, 40, the actuating elements 37, 38 between a rest position 43 and an actuating position 44 can be moved. Furthermore, it can be provided that in the tool holder 16, a first locking element 45 and a second locking element 46 are formed in which in each case at least one locking pin 47 is formed, which is slidably received in which in the horizontal direction 12 in the locking element 45, 46. Furthermore, it can be provided that the locking pin 47 can be coupled to the actuators 37, 38 and thus can be moved by them.
    In an alternative embodiment, it may be provided that locking elements 45, 46 are arranged with locking pins 47 disposed thereon in the tool carrier 16 slidably received. In particular, it can be provided in such an embodiment variant that the locking elements 45, 46 can be coupled to the actuation elements 37, 38 and thus can be moved by them.
    Furthermore, it can be provided that the locking elements 45, 46 each have at least one locking pin 47 which is formed above the locking element 45, 46 protruding.
    The locking element 45, 46 and the locking pin 47 can be moved by means of the actuating element 37, 38 between a basic position 48 and a locking position 49 back and forth. In a development, it may be provided that two locking pins 47 are arranged per locking element 45, 46. As a result, it can be achieved that the tool carrier 16 can be received in precise position in the holding elements 50.
    In addition, it can be provided that in the area of the tool changing position 20 or in the region of the tooling position 21, two opposing holding elements 50 are formed, into which the locking elements 45, 46 can engage and thus the tool carrier 16 can be received or stored in the holding elements 50 , In particular, it can be provided that in the holding elements 50, a pin receptacle 51 is formed, in which engage the locking pin 47.
    Furthermore, it can be provided that in the locking elements 45, 46, a driving pin 52 is formed, which engages in a arranged in the actuating element 37, 38 recess 53 for the driving pin 52. The driving pin 52 is arranged on the locking element 45, 46 such that it protrudes on an underside of the tool carrier 16. The recess for the driving pin 53 may be formed, for example, in the form of a simple bore, wherein the driving pin 52 is inserted into the bore in the axial direction. Alternatively, it can be provided that the recess 53 is formed for the driving pin 52 in the form of a slot-shaped recess. Thereby, it is also possible that the driving pin 52 is inserted laterally into the recess 53.
    FIG. 6 shows a perspective view of the manipulation device 19, wherein the tool carrier 16 is shown in a position decoupled from the coupling device 26, 27.
    FIG. 7 shows a further perspective view of the manipulation device 19 in a sectional representation.
    Figure 8 shows the coupling device 26, 27 in a sectional detail view.
    The further description of the figures is based on a synopsis of FIGS. 4-8.
    Particularly good in the figure 7 can be further provided that in the actuating element 37, 38, a slot-shaped recess 55 is formed, which serves to receive a arranged in the tool carrier 16 holding pin 56. In particular, it can be provided that the retaining pin 56 has a fixing head 57, which is formed by a groove-shaped recess 58 in the retaining pin 56. Furthermore, it can be provided that the slot-shaped recess 55 has an insertion region 59, which is formed by an extension 60.
    Furthermore, it can be provided that the slot-shaped recess 55 has a width 61 which is slightly larger than a main dimension 62 of the groove bottom of the groove-shaped recess 58. In addition, it can be provided that a clear width 63 of the extension 60 is slightly larger than an outer dimension 64th the fixing head 57.
    As a result of the above-described dimensioning of the retaining pin 56, it can be achieved that the retaining pin 56 can be inserted into the slot-shaped recess 55 of the actuating element 37, 38 in the insertion region 59. Subsequently, the actuator 37, 38 are moved in the horizontal direction of displacement 12. As a result, the groove-shaped recess 58 of the holding pin 56 can be brought into positive engagement with the slot-shaped recess 55 of the actuating element 37, 38.
    Furthermore, it can be provided that the coupling device 26, 27 comprises an insertion bushing 65. The insertion sleeve 65 serves to facilitate the insertion of the retaining pin 56 into the slot-shaped recess 55 when the manipulation device 19 is displaced in the vertical direction 29.
    As can be clearly seen from FIG. 8, it can further be provided that the retaining pin 56 is fastened to the tool carrier 16 by means of a fastening element.
    FIG. 5 shows particularly clearly that the coupling device 26, 27 comprises a securing hook 66. The securing hook 66 is preferably mounted pivotably about a pivot point 67 in the tool carrier 16. The securing hook 66 has a first lever arm 68 and a second lever arm 69. The first lever arm 68 is located on a first side of the pivot point 67 and the second lever arm 69 on a second side of the pivot point 67.
    Furthermore, it can be provided that on the first lever arm 68, a securing nose 70 is formed which, when the safety hook 66 is in a securing position 71, acts as a mechanical stop and thus prevents the displacement of the bending tools 6. In particular, this can prevent the bending tools 6 from falling out of the tool carrier 16 unintentionally, for example because of the inertia of inertia or due to vibrations.
    The securing hook 66 is pressed into a release position 73 by means of a spring element 72, which acts on the second lever arm 69. The spring element 72 in this case acts on a lower side 74 of the second lever arm 69. In particular, it may be provided that the actuating element 37, 38 has an actuating nose 75, which acts on the first lever arm 68, and thus the securing hook 66 from the release position 73 into the securing position 71 presses.
    In FIGS. 9a to 9f, the tool changing process is shown schematically in individual process steps, or the tool changing process is described in the further description of the figures with reference to FIGS. 9a to 9f with the aid of the remaining figures.
    As a preparation for the first method step according to FIG. 9a, the first manipulation arm 24 of the manipulation device 19 is coupled to a tool carrier 16 in which the bending tools 6 to be used are prepared. When Ankoppelvorgang the tool carrier 16 is removed by means of the first manipulation arm 24 from its tooling position 21.
    The Ankoppelvorgang for coupling the manipulation device 19 with the tool carrier 16 per se runs as follows. In a first method step, the manipulation arm 24, 25 in the vertical direction 29 to the tool carrier 16, which is in its tool change position 20 or in its tooling position 21, moved up. In this case, the retaining pin 56 is inserted into the extension 60 of the actuating element 37, 38. At the same time, the driving pins 52 of the locking pins 47 engage in the recess 53 arranged in the actuating element 37, 38, as a result of which the locking pins 47 are motion-coupled to the actuating elements 37, 38. At the same time, the operating lug 75 of the actuating element 37, 38 presses on the underside of the first lever arm 68 and thereby conveys the safety hook 66 in its securing position 71. Subsequently, the actuator 37, 38 is moved by means of the actuator 39, 40 from its operating position 44 in its rest position 43 , By this sliding operation of the retaining pin 56 is secured in the slot-shaped recess 55 of the actuating element 37, 38, so-that the tool holder 16 is received on the first manipulating arm 24, 25 secured. At the same time by the sliding operation of the actuating element 37, 38 of the locking pin 47 is moved from its locking position 47 to its home position 48 and thereby the tool carrier 16 released from the tool change position 20 or the tooling position 21 and thus can be moved by the manipulation device 19. At the same time, it can be provided that the securing hook 66 is pushed further into its securing position 71 by the displacement process.
    The Abkoppelvorgang in which the tool holder 16 is used by the manipulation device 19 in the tool change position 20 or in the tooling position 21, runs exactly in the reverse order of the above method steps of Ankoppelvorganges.
    In the first method step according to FIG. 9 a, the manipulation device 19 is moved to the press brake 2 with the tool carrier 16 accommodated on the first manipulation arm 24. In the press brake 2, a further tool carrier 16 is provided in the tool change position 20, wherein in this further tool carrier 16 bending tools 6 are added, which are to be removed from the press brake 2.
    In a further method step according to FIG. 9b, the second manipulation arm 25 is moved upward in the vertical direction 29 in order to be able to receive the further tool carrier 16 from the press brake 2 on the second manipulation arm 25 in the coupling process.
    In a further method step according to FIG. 9c, the second manipulation arm 25 is moved downwards in the vertical direction 29 and the manipulation device 19 is subsequently displaced so that the first manipulation arm 24 with the tool carrier 16 received thereon is positioned below the tool change position 20.
    In a further method step according to FIG. 9d, the first manipulation arm 24 is moved upwards in the vertical direction 29 in order to be able to deposit the tool carrier 16 in the tool change position 20 during the decoupling process. The bending tools 6 accommodated in the tool carrier 16 can then be pushed by the feed device 17 from the tool carrier 16 into the tool holder 5.
    In a further method step according to FIG. 9e, the first manipulation arm 24 is moved downwards in the vertical direction 29 and subsequently the tool carrier 16 accommodated on the second manipulation arm 25 is displaced into the tooling position 21 in order to receive it
    To accommodate bending tools 6 in the tool memory 15 and to be able to prepare a new tranche of to be equipped bending tools 6 in the tool memory 15 can.
    By the described method steps, the tool change process can be significantly accelerated.
    The embodiments show possible embodiments of the processing system 1, wherein it should be noted at this point that the invention is not limited to the specifically illustrated embodiments thereof, but also various combinations of the individual embodiments are possible with each other and this variation possibility due to the teaching of technical action representational invention in the skill of those skilled in this technical field.
    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. All statements of value ranges in the present description should be understood to include any and all sub-ranges thereof, e.g. is the statement 1 to 10 to be understood that all sub-areas, starting from the lower limit 1 and the upper limit 10 are included, ie. all sub-areas begin with a lower limit of 1 or greater and end at an upper limit of 10 or less, e.g. 1 to 1.7, or 3.2 to 8.1, or 5.5 to 10.
    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 processing installation 1, these or their components have been shown partially unevenly and / or enlarged and / or reduced in size.
    REFERENCE SIGNS LIST 1 processing plant 30 guide unit 2 press brake 31 drive device 3 plate 32 further drive device 4 first pressing bar 33 bearing arrangement 5 tool holder 34 rotary drive 6 bending tool 35 linear guide 7 second pressing bar 36 linear drive 8 press drive unit 37 first actuator 9 computer unit 38 second actuator 10 input display unit 39 first actuator 11th Tool body 40 second actuator 12 horizontal Verschieberich- 41 first piston rod device 42 second piston rod 13 bending edge 43 rest position 14 tool changing device 44 operating position 15 tool storage 45 first locking element 16 tool carrier 46 second locking element 17 catch 47 locking pin 18 receiving recess 48 basic position locking element 19 manipulation device 49 locking position Arretierele- 20th Tool changing position ment 21 Tooling position 50 Retaining element 22 Basic frame 51 Spigot receptacle 23 Manip ulationsarmaufnahme 52 Mitnehmerzapfen 24 first manipulation arm 53 recess for Mitneh- 25 second manipulation arm merzapfen 26 first coupling device 54 underside tool carrier 27 second coupling device 55 slot-shaped recess 28 linear adjustment 56 retaining pin 29 vertical direction 57 fixing head 58 groove-shaped recess 59 insertion 60 extension 61 width slot-shaped recess 62 main dimension groove bottom 63 Inner width of the extension 64 External dimensions Fixing head 65 Insert bushing 66 Fastening hook 67 Fulcrum 68 First lever arm 69 Second lever arm 70 Fuse nose 71 Fuse position 72 Spring element 73 Release position 74 Bottom second lever arm 75 Operating nose of the actuating element
    权利要求:
    Claims (13)
    [1]
    claims
    1. A tool changing device (14) for a press brake (2), the tool changing device (14) comprising: a tool carrier (16) having a receiving recess (18) for receiving bending tools (6), wherein the bending tools (6) between the tool carrier (16) and in a press beam (4, 7) of the press brake (2) formed tool holder (5) are displaceable; a manipulation device (19) for manipulating the tool carrier (16) between a tool changing position (20) in which the tool carrier (16) is arranged next to the tool holder (5) around the bending tools (6) from the tool carrier (16) into the tool holder (5 ), and a tooling position (21), in which the tool carrier (16) in the region of a tool storage (15) for loading with bending tools (6) is arranged, characterized in that the manipulation device (19) has a first manipulation arm (24 ) and a second manipulation arm (25), wherein on the first manipulation arm (24) a first coupling device (26) and the second manipulation arm (25) a second coupling device (27) for receiving the tool carrier (16) are formed.
    [2]
    2. Tool changing device according to claim 1, characterized in that both manipulation arms (24, 25) have a linear adjustment (28), by means of which the two coupling devices (27, 28) independently of one another in the vertical direction (29) are displaceable.
    [3]
    3. Tool changing device according to claim 2, characterized in that at least one of the manipulation arms (24, 25) has a guide unit (30), such as a guide carriage, on which the coupling device (26, 27) is arranged, wherein the guide unit (30). with a drive device (31), in particular a pneumatic cylinder, is coupled.
    [4]
    4. Tool changing device according to claim 3, characterized in that at least one further drive device (32), in particular a further pneumatic cylinder, is formed, by means of which the drive device (31) of the guide carriage (30) is displaceable, whereby a telescopic function is formed.
    [5]
    5. Tool changing device according to one of the preceding claims, characterized in that both manipulation arms (24, 25) on a Manipulationsarmaufnahme (23) are arranged, wherein the Manipulationsarmaufnahme (23) relative to a base frame (22) of the manipulation device (19) are rotatably mounted ,
    [6]
    6. Tool changing device according to one of the preceding claims, characterized in that the coupling devices (26, 27) each have a first actuating element (37) and a second actuating element (38) which by means of a first actuator (39) and a second actuator (40 ) in the horizontal direction (12) between a rest position (43) and an actuating position (44) are displaceable, whereby the tool carrier (16) is releasable or with the coupling device (26) can be locked.
    [7]
    7. Tool changing device according to claim 6, characterized in that on the tool carrier (16) a first locking element (45) and a second locking element (46) are formed, each having at least one locking pin (47), which for engaging in a tool change position (20) or in the tooling position (21) arranged pin receptacle (51) are slidably mounted in the locking element (45, 46), wherein the locking pins (47) by means of the actuating elements (37, 38) are displaceable.
    [8]
    8. Tool changing device according to one of claims 6 to 7, characterized in that on the locking pin (47) a driving pin (52) is formed, which is formed in the direction of actuating elements (37, 38) projecting, and that in the actuating elements (37, 38) is formed with the driving pin (52) corresponding recess (53).
    [9]
    9. Tool changing device according to one of claims 6 to 8, characterized in that in the actuating element (37, 38) has a slot-shaped recess (55) is formed, which in an insertion region (59) has an extension (60), and that on the tool carrier ( 16) a holding pin (56) is arranged, which has a fixing head (57) with a groove-shaped recess (58), wherein a width (61) of the slot-shaped recess (55) in the actuating element (37, 38) is slightly larger than the main dimension (62) of the groove bottom of the groove-shaped recess (58) and wherein the inside width (63) of the extension (60) is slightly larger than an outer dimension (64) of the fixing head (57) of the holding pin (56).
    [10]
    10. Tool changing device according to one of the preceding claims, characterized in that in the receiving recess (18) of the tool carrier (16) a securing hook (66) is formed, which is pivotally mounted about a pivot point (67) on the tool carrier (16), wherein the Securing hook (66) on a first lever arm (68) has a securing nose (70) which acts as a mechanical stop in a securing position (71) and thus prevents the bending tools (6) from being displaced, and the securing hook (66) is in a release position ( 73) in the tool carrier (16) is sunk, so that the bending tools (6) laterally from the tool carrier (16) can be pushed out, wherein the safety hook (66) by means of a spring element (72) is pressed into its release position (73) and by means of Actuator (37, 38) in the securing position (71) can be pressed.
    [11]
    11. Tool changing device according to claim 10, characterized in that on one side of the fulcrum (67) of the securing hook (66) of the first lever arm (68) is formed and that on a second side of the fulcrum (67), a second lever arm (69) is, wherein the spring element (72) is designed as a compression spring which acts on a lower side (74) of the second lever arm (69) and thereby the safety hook (66) is pressed into its release position (73) and that on the actuating element (37, 38 ) an actuating nose (75) is formed which acts on the first lever arm (68) of the securing hook (66), wherein pressed in the operating position (44) of the actuating element (37, 38) of the securing hook (66) in its release position (73) is and in the rest position (43) of the actuating element (37, 38) of the securing hook (66) in its securing position (71) is pressed.
    [12]
    12. Processing plant for bending metal sheets, the production plant comprising: a press brake (2) with a fixed pressing beam (4) and a relative to this adjustable pressing bar (7), and on the pressing bars (4, 7) formed tool holders (5) for Inclusion of bending tools (6); a tool changing device (14) for changing the bending tools (6), characterized in that the tool changing device (14) is designed according to one of the preceding claims.
    [13]
    13. A method for performing a tool change on a press brake (2), in particular using a device according to one of the preceding claims, characterized in that the method comprises the following method steps: - providing a first tool carrier (16), which for receiving bending tools ( 6), wherein the first tool carrier (16) is received on a first manipulation arm (24) of a manipulation device (19); - loading the first tool carrier (16) with in the tool memory (15) mounted bending tools (6); - Providing a second tool carrier (16) at the tool change position (20), in which the tool carrier (16) is arranged adjacent to the tool holder; Moving the in a tool holder (5) of the press brake (2) taken up bending tools (6) in the second tool carrier (16); - Receiving the second tool carrier (16) by means of a second manipulation arm (25) of the manipulation device (19); - Positioning of the first tool carrier (16) in the tool changing position (20) by means of the first manipulation arm (24) of the manipulation device (19); - placing the first tool carrier (16) in the tool change position (20); - Transporting the second tool carrier (16) in a tooling position (21), in which the tool carrier (16) in the region of a tool storage (15) for loading with bending tools (6) is arranged.
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    同族专利:
    公开号 | 公开日
    EP3416764B1|2019-12-11|
    AT518255B1|2017-09-15|
    WO2017139824A1|2017-08-24|
    EP3416764A1|2018-12-26|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO2012151601A1|2011-05-10|2012-11-15|Trumpf Maschinen Austria Gmbh & Co. Kg.|Manufacturing plant having a tool-changing system|
    EP2946846A1|2014-05-23|2015-11-25|Felder KG|Tool changing device for a forming press|
    CH668035A5|1986-09-19|1988-11-30|Beyeler Machines Sa|Folding press with die or matrix replacement system - has arms on rear mobile supports having pins which engage with holes in dies and matrices|
    JPH07275941A|1994-04-06|1995-10-24|Amada Co Ltd|Device for exchanging dies in press brake|
    JP4582621B2|2003-06-23|2010-11-17|株式会社アマダ|Bending machine|
    JP6101454B2|2012-09-04|2017-03-22|株式会社アマダホールディングス|Work processing apparatus and method of moving a mold in the work processing apparatus|TR201722072A2|2017-12-27|2018-02-21|Durmazlar Makina Sanayi Ve Ticaret Anonim Sirketi|AUTOMATIC TOOL CHANGE SYSTEM FOR CNC BENDING MACHINES|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50100/2016A|AT518255B1|2016-02-17|2016-02-17|Tool change device for a press brake and method for performing a tool change|ATA50100/2016A| AT518255B1|2016-02-17|2016-02-17|Tool change device for a press brake and method for performing a tool change|
    EP17713875.7A| EP3416764B1|2016-02-17|2017-02-15|Tool changing device for a press brake method for changing a tool|
    PCT/AT2017/060032| WO2017139824A1|2016-02-17|2017-02-15|Tool changing device for a press brake method for changing a tool|
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