Bending robot tail end suction cup clamp

Abstract

The utility model discloses a bending robot tail end suction cup clamp which comprises an adapter frame used for being connected with the tail end of a robot, and mounting frames are arranged on the two sides of the adapter frame. The framework is arranged on the lower side of the transfer frame, and the transfer frame is connected with the framework through a mounting frame; the vacuum assembly comprises a suction cup mounted at the bottom of the framework and used for adsorbing the sheet metal part, the suction cup communicates with an electromagnetic valve assembly through a vacuum generator, the electromagnetic valve assembly is arranged at the bottom of the adapter frame, and the vacuum generator and a communicating pipeline thereof are arranged on the mounting frame; the electric control induction assembly is arranged on the framework and used for monitoring the operation state of the suction cup. The tail end suction cup clamp of the bending robot is compact in structure, the space of the clamp is fully utilized for installing all parts and pipelines, and interference with other parts is avoided when sheet metal parts are adsorbed by the tail end suction cup clamp.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of chuck fixture, more particularly to a bending robot end chuck fixture. BACKGROUND

[0002] In the processing field of box-type house, the sheet metal with large length-width ratio is generally produced by a drawbench, and the product needs to be transferred by a chuck fixture. Taking a corner column as an example, the corner column is in an elongated shape, and the width of the corner column is relatively small compared with the length. When the chuck is adsorbed, the contact surface with the corner column is small. In order to ensure reliable adsorption effect, the chuck fixture is set as a whole, and the components are distributed relatively dispersedly. During operation, the chuck fixture is easy to interfere with other components, such as collision and friction between the chuck fixture and the drawbench during movement of the chuck fixture to the drawbench, which affects the reliable stability of adsorption and transfer operation.

[0003] In summary, how to avoid the interference between the chuck fixture and other components is a problem to be solved by the technical personnel in the field. SUMMARY

[0004] Therefore, the utility model discloses a bending robot end chuck fixture, which is compact in structure, fully utilizes the space of the fixture to install various components and pipelines, and avoids interference with other components during adsorption of the sheet metal part.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A bending robot end chuck fixture, comprising:

[0007] An adapter frame is used to connect the end of the robot, and mounting frames are arranged on both sides of the adapter frame.

[0008] A skeleton is arranged on the lower side of the adapter frame, and the adapter frame is connected to the skeleton through the mounting frames.

[0009] A vacuum assembly comprises a chuck mounted on the bottom of the skeleton and used to adsorb a sheet metal part. The chuck is connected to an electromagnetic valve assembly through a vacuum generator. The electromagnetic valve assembly is arranged on the bottom of the adapter frame, and the vacuum generator and its connected pipelines are arranged in the mounting frames.

[0010] An electrically controlled inductive assembly is arranged on the skeleton and used to monitor the operation state of the chuck.

[0011] Preferably, the adapter frame comprises oppositely arranged first and second side portions. The plane where the first side portion is located and the plane where the second side portion is located form a limiting space, and the electromagnetic valve assembly is located in the limiting space.

[0012] Preferably, the first side part is connected to the top surface of the framework through a vertical beam;

[0013] The bottom part of the adapter frame is connected to the side part of the framework through a support beam arranged obliquely, and the mounting frame is arranged obliquely and connected to the vertical beam and the framework.

[0014] Preferably, the utility model also comprises an electric control box, the electric control box is connected to the adapter frame, signal lines of the electric control sensing assembly and signal lines of the electromagnetic valve assembly are integrated in the electric control box, the electric control box is connected to the adapter frame through the support beam, and the electric control box and the electromagnetic valve assembly are located on both sides of the support beam.

[0015] Preferably, the adapter frame is connected to the middle part of the framework, and two mounting frames are symmetrically connected to both sides of the adapter frame.

[0016] Preferably, the electric control sensing assembly comprises a pressure switch arranged on the top surface of the framework and a micro switch arranged on the bottom surface of the framework, the opening and closing of the pressure switch are used to realize the start and stop of the suction disc suction work, and the micro switch is used to detect the suction condition of the suction disc to the sheet metal part.

[0017] Preferably, the vacuum generator is communicated with the suction disc through a vacuum filter, and pipelines of the vacuum filter, the vacuum generator, the suction disc and the pressure switch are arranged on the support beam or the mounting frame.

[0018] Preferably, the micro switch is arranged at both ends of the bottom part of the framework.

[0019] Preferably, the suction disc is provided with multiple groups, and the opening and closing and air path circulation of each group of suction discs are separately controlled by a control assembly.

[0020] Preferably, a plurality of suction disc mounting blocks are welded in the length direction of the framework, and the suction disc is arranged on the suction disc mounting block and communicated with the vacuum generator through a pipeline.

[0021] The ratio of the interval L1 between the suction disc mounting blocks on the two end parts of the framework to the width L2 of the suction disc mounting block is 15:1 to 20:1.

[0022] The bending robot end suction disc clamp provided by the utility model comprises an adapter frame, a framework, a mounting frame and a vacuum assembly and an electric control sensing assembly, wherein the adapter frame is connected to the framework through the mounting frame on both sides of the adapter frame, the vacuum assembly comprises a suction disc for suction of a sheet metal part, the suction disc is communicated with an electromagnetic valve assembly through a vacuum generator, the suction disc is arranged on the bottom part of the framework, the electromagnetic valve assembly is arranged on the bottom part of the adapter frame, the vacuum generator and the communication pipeline thereof are arranged on the mounting frame, and each component is arranged by fully utilizing the clamp space.

[0023] The beneficial effects of the aforementioned end-effector suction cup fixture for bending robots are: by making reasonable use of the fixture space to arrange various components and pipelines, the overall structure is compact, avoiding interference with other components when it adsorbs sheet metal parts. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the end-effector suction cup clamp for the bending robot provided by this utility model.

[0026] Figure 2 This is a schematic diagram of another orientation of the bending robot end-effector gripper provided by this utility model.

[0027] Figure 3 for Figure 1 Front view;

[0028] Figure 4 for Figure 1 Rear view;

[0029] Figure 5 for Figure 1 A bottom view;

[0030] Figure 6 This is a schematic diagram of the structure of the clamp body provided by this utility model;

[0031] Figure 7 This is a schematic diagram illustrating the application of the end-effector suction cup gripper for the bending robot provided by this utility model.

[0032] Figure 8 for Figure 7 Another directional diagram.

[0033] Figures 1-8 In the accompanying drawings, the reference numerals include:

[0034] 1- Fixture body; 2- Vacuum assembly; 3- Electrically controlled sensing assembly; 4- Robot end effector;

[0035] 11-Flange mounting plate; 12-Adapter frame; 13-Support beam; 14-Frame; 15-Mounting bracket; 16-Suction cup mounting block; 17-Vertical beam; 21-Solenoid valve assembly; 22-Vacuum generator; 23-Vacuum filter; 24-Suction cup; 31-Pressure switch; 32-Micro switch; 33-Electrical control box;

[0036] 121 - first side; 122 - second side. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0038] The core of the utility model is to provide a kind of bending robot end suction disc clamp, compact structure, by utilizing fixture space to arrange each component and pipeline reasonably, make full use of fixture space, avoid the interference problem of other components when fixture adsorbs sheet metal part.

[0039] The bending robot end suction disc clamp provided by the utility model includes adapter frame 12, skeleton 14, vacuum assembly 2 and electric control induction assembly 3, please refer to Figure 1 、 Figure 2 、 Figure 3 .

[0040] Please refer to Figure 7 、 Figure 8 , adapter frame 12 is provided with flange mounting plate 11, adapter frame 12 is connected robot end 4 by flange mounting plate 11, moves the whole suction disc clamp by robot end 4, to drive vacuum assembly 2 to move to the position of sheet metal part and carry out adsorption, or after adsorption, sheet metal part is transferred to other positions.Sheet metal part is specifically the structural member obtained by bending process, such as the corner column of box house.

[0041] Skeleton 14 is arranged at the lower side of adapter frame 12, and adapter frame 12 is connected with skeleton 14 through mounting frame 15 on both sides to form clamp main body 1 of suction disc clamp, which can provide space for the arrangement of vacuum assembly 2 and electric control induction assembly 3.

[0042] Vacuum assembly 2 includes suction disc 24, and suction disc 24 is communicated with electromagnetic valve assembly 21 by vacuum generator 22, electromagnetic valve assembly 21 is opened to ventilate vacuum generator 22, vacuum generator 22 generates negative pressure and provides suction disc 24, so that suction disc 24 generates negative pressure to adsorb sheet metal part.

[0043] The bottom of the skeleton 14 is provided with the suction disc 24, and the size of the skeleton 14 is set according to the specific arrangement requirement of the suction disc 24; the bottom of the adapter frame 12 is arranged with the electromagnetic valve assembly 21, where the bottom of the adapter frame 12 refers to the space between the adapter frame 12 and the skeleton 14, and the electromagnetic valve assembly 21 is arranged in the space to realize effective use of the clamp space; the vacuum generator 22 and the connecting pipeline thereof are arranged on the mounting frame 15, and the connecting pipeline of the vacuum generator 22 specifically refers to the pipeline connected with the suction disc 24 and the electromagnetic valve assembly 21, which is arranged on the mounting frame 15 to facilitate wiring and air flow, and the arrangement of the vacuum generator 22 and the connecting pipeline thereof on the mounting frame 15 realizes full and effective use of the mounting frame 15.

[0044] The space provided by the skeleton 14, the adapter frame 12 and the mounting frame 15 can be used to install various components of the vacuum assembly 2, to realize maximum use of the clamp space, make the overall structure of the clamp more compact, reduce the occupied space of the entire clamp, and avoid the interference of the line mess of the suction disc clamp with other components during movement.

[0045] The electric control sensing element is arranged on the skeleton 14 and used to monitor the working state of the suction disc 24, such as detecting whether the suction disc 24 successfully adsorbs the sheet metal part and returning the detection information to the control module, and the electric control sensing assembly 3 can be arranged on the skeleton 14. In a specific embodiment, the signal lines connected between the electric control sensing element and the control module and the signal lines connected between the electromagnetic valve assembly 21 and the control module are integrated in the electric control box 33, and the integrated signal lines are connected to the control module through the entire cable.

[0046] The integration of the signal lines is realized through the electric control box 33, and the arrangement and installation of the pipeline are realized through the mounting frame 15 connected to the adapter frame 12, so that the signal lines and the pipeline can be properly arranged and stored, and the interference of the line mess of the suction disc clamp with other components during movement is avoided.

[0047] On the basis of the above embodiment, the adapter frame 12 includes a first side portion 121 and a second side portion 122 arranged oppositely, and the plane where the first side portion 121 is located and the plane where the second side portion 122 is located form a limiting space, and in an embodiment, the electric control box 33 and the electromagnetic valve assembly 21 are located in the limiting space. The electric control box 33 and the electromagnetic valve assembly 21 can also be arranged on the skeleton 14 or the mounting frame 15.

[0048] Please refer to Figures 2-4 , the adapter frame 12 is in a plate-like structure, the first side portion 121 and the second side portion 122 of the adapter frame 12 are two side portions arranged oppositely, and the plane where the first side portion 121 is located and the plane where the second side portion 122 are located form a limiting space for limiting the installation range of components.

[0049] Specifically, the electric control box 33 is installed on the side of the adapter frame 12, which is the side adjacent to the first side 121 or the second side 122, and the electromagnetic valve assembly 21 is installed on the bottom of the adapter frame 12. By limiting the electric control box 33 and the electromagnetic valve assembly 21 in the limited space, the overall size of the clamp is limited, the overall space occupied by the clamp is reduced, and the interference of the clamp with other components during movement is avoided.

[0050] The installation of the electric control box 33 and the electromagnetic valve assembly 21 is completed by using the corresponding limited space of the adapter frame 12. The installation space provided by the clamp is fully utilized to install the components, so that the components are compact and as hidden as possible, and the installation space inside the clamp is maximized.

[0051] On the basis of any of the above embodiments, the first side 121 is connected to the top surface of the skeleton 14 through the vertical beam 17; the bottom of the adapter frame 12 is connected to the side of the skeleton 14 through the support beam 13 arranged obliquely, and the mounting frame 15 is arranged obliquely and connected to the vertical beam 17 and the skeleton 14.

[0052] Please refer to Figure 2 、 Figure 6 , the clamp further comprises a vertical beam 17 and a support beam 13, wherein the vertical beam 17 is vertically supported between the top of the skeleton 14 and the first side 121 of the adapter frame 12 to form a support, and the vertical beam 17 can be provided in one, two or more to ensure the stability of the overall structure of the clamp.

[0053] The support beam 13 is arranged obliquely. Here, the oblique arrangement is based on the case where the skeleton 14 is relatively long and thin. In order to ensure reliable support of the skeleton 14 and prevent deformation of the clamp during use, the support beam 13 is used to strengthen and improve the strength. The support beam 13 can be provided in multiple, which can be set according to actual conditions.

[0054] The mounting frame 15 is arranged obliquely and connected to the vertical beam 17 and the skeleton 14. The mounting frame 15 cooperates with the support beam 13 to strengthen the structural strength and prevent deformation of the clamp during use.

[0055] Taking a specific implementation as an example, the connection relationship between the vertical beam 17, the skeleton 14, the mounting frame 15, the adapter frame 12 and the support beam 13 is welding, which ensures the reliability and stability of the overall frame structure of the clamp.

[0056] On the basis of any of the above embodiments, the electric control box 33 is further included, the electric control box 33 is connected to the adapter frame 12, the signal line of the electric control sensing assembly 3 and the signal line of the electromagnetic valve assembly 21 are integrated in the electric control box 33, the electric control box 33 is connected to the adapter frame 12 through the support beam 13, and the electric control box 33 and the electromagnetic valve assembly 21 are located on both sides of the support beam 13.

[0057] Please refer to Figures 3-5The electric control box 33 is connected to the support beam 13, specifically, the electric control box 33 and the support beam 13 are fastened by a fastener through the hole position cooperation, the electric control box 33 is installed on the side of the adapter frame 12 through the support beam 13 and does not contact the mounting frame 15, and the installation of the vacuum generator 22 on the mounting frame 15 is not affected.

[0058] The electric control box 33 and the electromagnetic valve assembly 21 are located on both sides of the support beam 13, the signal lines of the electromagnetic valve assembly 21 and the signal lines of the electric control sensing assembly 3 are wired to the electric control box 33, the wiring distance is short, the layout is compact, the space of the clamp is maximized, and the signal lines and pipelines can be properly arranged and stored by combining the pipeline arrangement and installation scheme of the mounting frame 15 connected to the adapter frame 12, so that the problem of line disorder interfering with other components in the moving process of the suction cup clamp is avoided.

[0059] On the basis of any of the above embodiments, the adapter frame 12 is connected to the middle part of the framework 14, and the two mounting frames 15 are symmetrically connected to the two sides of the adapter frame 12.

[0060] Please refer to Figure 2 , Figure 6 The adapter frame 12 is connected to the middle part of the framework 14 through the two vertical beams 17 and the two support beams 13 to form support, so that the center of gravity of the clamp is located on the middle part of the whole, reliable support for the middle part of the framework 14 is ensured, and the stability and reliability of the clamp are ensured.

[0061] The two mounting frames 15 are symmetrically connected to the two sides of the adapter frame 12, one end of the mounting frame 15 is connected to the vertical beam 17, and the other end is connected to the end position of the framework 14, so as to form reliable support for the framework 14 and ensure the reliable stability of the suction of the metal sheet and the transfer.

[0062] On the basis of any of the above embodiments, the electric control sensing assembly 3 includes a pressure switch 31 arranged on the top surface of the framework 14 and a micro switch 32 arranged on the bottom surface of the framework 14, the opening and closing of the pressure switch 31 is used to realize the start and stop of the suction cup 24 suction work, and the micro switch 32 is used to detect the suction of the suction cup 24 to the metal sheet.

[0063] The signal lines of the pressure switch 31, the signal lines of the micro switch 32 and the signal lines of the electromagnetic valve assembly 21 can be integrated in the electric control box 33.

[0064] Please refer to Figure 1 , Figure 2 , Figure 5 The electric control sensing assembly 3 includes a pressure switch 31 and a micro switch 32, the opening and closing of the pressure switch 31 is used to realize the start and stop of the suction cup suction work, the pressure switch 31 is signal connected to a control assembly, and the control assembly controls the pressure switch 31 to open to realize the start work of the suction cup 24.

[0065] Micro switch 32 is used to detect the adsorption of suction cup 24 to the sheet metal part. When suction cup 24 is adsorbed to the sheet metal part, the elastic element in micro switch 32 is pressed and feeds back information to the control assembly, determining that suction cup 24 has reliably adsorbed the sheet metal part.

[0066] Pressure switch 31 is specifically arranged on the top surface of skeleton 14, and micro switch 32 is specifically arranged on the bottom surface of skeleton 14. The signal line of pressure switch 31 and the signal line of micro switch 32 can be wired along skeleton 14 to electric control box 33, so that the signal lines of the electric control sensing elements are integrated in electric control box 33, facilitating the integrated storage of the signal lines and avoiding the problem of interference with other components caused by the scattering of the signal lines.

[0067] The signal lines related to the clamp, specifically the signal lines of electromagnetic valve assembly 21, pressure switch 31 and micro switch 32, are integrated in electric control box 33, and the cable is then led out after integration by electric control box 33 to the control assembly.

[0068] On the basis of any of the above embodiments, vacuum generator 22 is connected to suction cup 24 through vacuum filter 23. The pipelines of vacuum filter 23, the pipelines of vacuum generator 22, the pipelines of suction cup 24 and the pipelines of pressure switch 31 are arranged on support beam 13 or mounting rack 15.

[0069] Please refer to Figures 2-4 The high-pressure airflow generated by vacuum generator 22 is filtered by vacuum filter and then sent to suction cup 24, ensuring the reliability of the adsorption operation of suction cup 24.

[0070] The pipelines related to the clamp, specifically the pipelines of vacuum filter 23, the pipelines of vacuum generator 22, the pipelines of suction cup 24 and the pipelines of pressure switch 31, can be arranged on support beam 13 or mounting rack 15, so as to realize the orderly storage and arrangement of the pipelines, facilitate the wiring and air flow of the clamp, and avoid interference with other components during the movement of the clamp.

[0071] For example, in a specific implementation, the pipelines of vacuum generator 22 and the pipelines of suction cup 24 are arranged on mounting rack 15, and the pipelines of pressure switch 31 are arranged on support beam 13, so as to realize the wiring and air flow of the pipelines.

[0072] For another specific implementation, the pipelines of vacuum generator 22 are arranged on mounting rack 15, and the pipelines of suction cup 24 and the pipelines of pressure switch 31 are arranged on support beam 13, so as to realize the wiring and air flow of the pipelines.

[0073] On the basis of any of the above embodiments, micro switches 32 are arranged at both ends of the bottom of skeleton 14, and the signal lines of micro switches 32 are wired to electric control box 33 through skeleton 14.

[0074] Please refer to Figure 5Microswitches 32 are arranged at both ends of the bottom of the framework 14, and when metal plates of different sizes are used, the microswitches 32 can be individually activated or all activated, thereby improving the applicability of the clamp.

[0075] When the overall size of the metal plate is small, one microswitch 32 can be used to detect the adsorption condition, and the other microswitch 32 is not used, and the control assembly can collect the signal of the working microswitch 32.

[0076] The signal lines of the microswitches 32 are routed to the electric control box 33 through the framework 14, specifically, the signal lines can be routed to the electric control box 33 through the edges or sides of the framework 14 to realize the storage of the signal lines and avoid interference between the signal lines and other components.

[0077] On the basis of any of the above embodiments, the suction cups 24 are provided in multiple groups, and the opening and closing of each group of suction cups 24 and the gas flow are individually controlled by the control assembly.

[0078] In this embodiment, the opening and closing of the multiple groups of suction cups 24 and the gas flow are individually controlled by the control assembly, and when a group of suction cups 24 leaks, the other suction cups 24 can still ensure the adsorption effect, effectively preventing the problem of plate falling caused by vacuum leakage and ensuring the reliability of adsorption.

[0079] In addition, for metal plates of different sizes, the control assembly can control the opening and closing of the multiple groups of suction cups 24 to adapt to different sizes, thereby realizing the demand for compatibility with multiple sizes of products and improving the applicability of the suction cup clamp.

[0080] On the basis of any of the above embodiments, multiple groups of suction cup mounting blocks 16 are welded in the length direction of the framework 14, and the suction cups 24 are arranged on the suction cup mounting blocks 16 and connected to the vacuum generator 22 through the pipeline.

[0081] The ratio of the distance L1 between the suction cup mounting blocks 16 on the two ends of the framework 14 to the width L2 of the suction cup mounting block 16 is 15:1~20:1.

[0082] Please refer to Figure 3 、 Figure 6 Multiple groups of suction cup mounting blocks 16 are welded in the length direction of the framework 14, and the suction cups 24 are connected to the suction cup mounting blocks 16 and connected to the vacuum generator 22 through the pipeline to obtain negative pressure.

[0083] The suction cup mounting blocks 16 on the two ends of the framework 14, i.e., the suction cup mounting blocks 16 on the two ends in the length direction of the framework 14, have a distance L1 between the suction cup mounting blocks 16 on the two ends and a width L2 of the suction cup mounting block 16, and the ratio of the distance L1 to the width L2 is 15:1~20:1, so as to be applicable to the bending of metal plates with a length-width ratio of 5:1~7:1.

[0084] The various embodiments are described in the specification by way of progression, each building on the last to facilitate ease of understanding. The same reference numerals are used throughout the drawings and like structure are denoted with like reference numerals.

[0085] The above has carried out the detailed introduction to the bending robot end suction disc clamp provided by the utility model. The principle and implementation mode of the utility model are described by applying specific examples in this paper, and the above embodiment is only used for helping understanding the method and core idea of the utility model. It should be pointed out that for ordinary skilled person in the art, on the premise of not departing from the principle of the utility model, the utility model can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the utility model claims.

Claims

1. A bending robot end-of-arm suction cup gripper, characterized in that, The utility model relates to a robot vacuum plate, including: A switching frame (12) is used for connecting the robot end, and mounting frames (15) are arranged on both sides of the switching frame (12); A skeleton (14) is arranged on the lower side of the switching frame (12), and the switching frame (12) is connected with the skeleton (14) through the mounting frames (15); A vacuum assembly (2) includes a suction disc (24) arranged on the bottom of the skeleton (14) and used for adsorbing a sheet metal part, the suction disc (24) is connected with an electromagnetic valve assembly (21) through a vacuum generator (22), the electromagnetic valve assembly (21) is arranged on the bottom of the switching frame (12), and the vacuum generator (22) and the connected pipelines are arranged on the mounting frames (15); An electric control induction assembly (3) is arranged on the skeleton (14) and used for monitoring the working state of the suction disc (24).

2. The bending robot end-of-arm suction cup gripper of claim 1, wherein, The switching frame (12) includes oppositely arranged first and second side portions (121) and (122), the planes where the first and second side portions (121) and (122) are located form a limiting space, and the electromagnetic valve assembly (21) is located in the limiting space.

3. The bending robot end-of-arm suction cup gripper of claim 2, wherein, The first side portion (121) is connected to the top surface of the skeleton (14) through a vertical beam (17); The bottom of the switching frame (12) is connected to the side portion of the skeleton (14) through an obliquely arranged support beam (13), and the mounting frames (15) are obliquely arranged and connected with the vertical beam (17) and the skeleton (14).

4. The bending robot end-of-arm suction cup gripper of claim 3, wherein, Further, an electric control box (33) is connected to the switching frame (12), the signal lines of the electric control induction assembly (3) and the signal lines of the electromagnetic valve assembly (21) are integrated in the electric control box (33), the electric control box (33) is connected to the switching frame (12) through the support beam (13), and the electric control box (33) and the electromagnetic valve assembly (21) are located on both sides of the support beam (13).

5. The bending robot end-of-arm suction cup gripper of claim 1, wherein, The switching frame (12) is connected to the middle portion of the skeleton (14), and two mounting frames (15) are symmetrically connected to both sides of the switching frame (12).

6. The bending robot end-of-arm suction cup gripper of claim 3, wherein, The electric control induction assembly (3) includes a pressure switch (31) arranged on the top surface of the skeleton (14) and a micro switch (32) arranged on the bottom surface of the skeleton (14), the opening and closing of the pressure switch (31) are used for starting and stopping the adsorption work of the suction disc (24), and the micro switch (32) is used for detecting the adsorption state of the suction disc (24) on the sheet metal part.

7. The bending robot end-of-arm suction cup gripper of claim 6, wherein, The vacuum generator (22) is connected with the suction disc (24) through a vacuum filter (23), and the pipelines of the vacuum filter (23), the pipelines of the vacuum generator (22), the pipelines of the suction disc (24) and the pipelines of the pressure switch (31) are arranged on the support beam (13) or the mounting frames (15).

8. The bending robot end-of-arm suction cup gripper of claim 7, wherein, The micro switch (32) is arranged at both ends of the bottom of the skeleton (14).

9. The bending robot end-of-arm suction cup gripper of claim 1, wherein, The suction disc (24) is arranged in multiple groups, and the opening and closing and air path circulation of each group of the suction disc (24) are controlled by a control assembly.

10. The bending robot end-of-arm suction cup gripper of claim 1, wherein, A plurality of groups of suction cup mounting blocks (16) are welded in the length direction of the skeleton (14), and the suction cups (24) are arranged on the suction cup mounting blocks (16) and are connected to the vacuum generator (22) through pipelines; The ratio of the interval L1 between the suction cup mounting blocks (16) on the two end portions of the skeleton (14) and the width L2 of the suction cup mounting blocks (16) is 15:1~20:1.

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