Punching die for automobile part production

Abstract

The utility model discloses a punching die for automobile part production, and relates to the technical field of automobile part production equipment.The punching die comprises a base, a first supporting frame and a second supporting frame, the first supporting frame is arranged on the edge of the top of the base, and the second supporting frame is arranged on one side of the first supporting frame; according to the utility model, the groove, the mounting groove and the ball of the base are movably connected with the outer wall of the rotating disc, and the gear disc is movably arranged in the annular groove, so that the rotating smoothness of the rotating disc is improved; a driving assembly arranged on the outer wall of the base can effectively drive the rotating disc and the gear disc to rotate, the operation efficiency is improved, in addition, a set of clamping blocks are arranged in a moving groove in the top of the rotating disc, accurate clamping of automobile parts of different sizes is guaranteed through an adjusting assembly, and then the punching die is compact in structure and convenient to operate; and the production efficiency and the machining precision of the automobile parts can be obviously improved.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive parts production equipment, specifically a punching die for automotive parts production. Background Technology

[0002] Automotive parts refer to parts, assemblies, components, and assemblies suitable for assembling automobiles. They are also commonly referred to as automotive components. In the production process of automotive parts, punching dies are required. Specifically, a die is used for punching processes and is widely used in the punching of metal sheets, pipes, and profiles. It can separate waste material along a closed contour on the blank or sheet to obtain perforated parts.

[0003] Patent document CN115138757A discloses a punching device for automotive parts, which states: "This invention relates to the field of punching device technology, specifically to a punching device for automotive parts. The punching device for automotive parts is used to punch automotive parts of preset specifications, and includes a mounting bracket, a punching mechanism, a carrier plate, and a positioning mechanism. The punching mechanism is located above the automotive part and includes a support plate and a punching post. The positioning mechanism includes two first clamping components and two second clamping components. This invention's punching device for automotive parts, by setting up a punching mechanism and a positioning mechanism, allows the positioning mechanism to fix the automotive part during the downward movement of the punching mechanism, achieving integrated operation, eliminating the need for manual assistance, and resulting in high work efficiency."

[0004] However, the punching devices for automotive parts in the aforementioned publicly available documents mainly focus on how to achieve integrated operation, eliminate the need for manual assistance, and improve work efficiency. However, they have technical problems that make it difficult to accurately clamp automotive parts of different sizes.

[0005] In view of this, it is necessary to develop a punching die for automobile parts production, so as to improve the ability of the punching die to accurately clamp automobile parts of different sizes during use. Utility Model Content

[0006] The purpose of this utility model is to provide a punching die for the production of automotive parts, so as to solve the technical problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a punching die for automobile parts production, comprising a base, a first support frame, and a second support frame. The first support frame is provided at the top edge of the base, and the second support frame is provided on one side of the first support frame, with the other end of the second support frame located at the top edge of the base.

[0008] The top of the base is provided with a groove, the middle of the inner bottom wall of the groove is provided with a through hole, the bottom of the inner wall of the groove is provided with an annular groove, the top of the inner wall of the groove is provided with a plurality of mounting grooves, the inside of the mounting groove is movably connected with a ball, the outer wall of the ball is movably connected with a rotating disc, the bottom of the outer wall of the rotating disc is provided with a gear disc, and the outer wall of the gear disc is movably connected in the annular groove, the outer wall of the base is provided with a driving assembly, and the driving assembly is used for driving the rotating disc and the gear disc to rotate.

[0009] The top of the rotating disc is provided with a moving groove, the inner wall of the moving groove is movably connected with a group of clamping blocks, and the inside of the moving groove is provided with an adjusting assembly.

[0010] Preferably, the driving assembly comprises a first through groove, and the first through groove is provided on the outer wall of the base. The inner wall of the first through groove is movably connected with a transmission gear, and the outer wall of the transmission gear is engaged with the outer wall of the gear disc.

[0011] Preferably, the top of the transmission gear is provided with a first servo motor through a transmission rod, and one side of the first servo motor is arranged on the bottom of the outer wall of the first support frame.

[0012] Preferably, the adjusting assembly comprises a second servo motor, and the outer wall of the second servo motor is embeddedly arranged on the inner wall of the moving groove. The output end of the second servo motor is provided with a bidirectional screw rod, and the outer wall of the bidirectional screw rod is threaded through one side of a group of clamping blocks.

[0013] Preferably, the top of the outer wall of the first support frame is provided with a third servo motor, the output end of the third servo motor is provided with a driving gear, the outer wall of the driving gear is engaged with a driven gear, and the inner wall of the first support frame is provided with a group of limiting grooves.

[0014] Preferably, the bottom of the driven gear is provided with a first threaded rod, the top of the driven gear is provided with a driving roller, the outer wall of the driving roller is provided with a transmission belt, the other end of the inner wall of the transmission belt is provided with a driven roller, the bottom of the driven roller is provided with a second threaded rod, the outer walls of the first threaded rod and the second threaded rod are respectively threadedly connected with a moving block, and the outer wall of the moving block is movably connected with the inner wall of the limiting groove.

[0015] Preferably, one end of the moving block is provided with a moving plate, and the top of the moving plate is provided with a second through groove.

[0016] Preferably, the top of the first support frame is provided with a third through groove, the inner wall of the third through groove is embeddedly provided with a fourth servo motor, the output end of the fourth servo motor is provided with a third threaded rod, the outer wall of the third threaded rod is threadedly provided with a sliding block, the bottom of the sliding block is provided with a first hydraulic cylinder, and the output end of the first hydraulic cylinder is provided with a first punch.

[0017] Preferably, a second hydraulic cylinder is provided on the edge of the rotating disk, and a limiting plate is provided at the output end of the second hydraulic cylinder.

[0018] Preferably, a groove is provided on the front side of the second support frame, a third hydraulic cylinder is provided on the top of the second support frame, a connecting block is provided through the output end of the third hydraulic cylinder through the top of the second support frame, and the outer wall of the connecting block is provided on the inner wall of the groove, a fourth hydraulic cylinder is provided at the bottom of the connecting block, and a second punch is provided at the output end of the fourth hydraulic cylinder.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] This invention improves the smoothness of the rotating disk's rotation through the groove, mounting slot, ball bearings, and movable connection between the base and the outer wall of the rotating disk, as well as the movable arrangement of the gear disk within the annular groove. The drive assembly on the outer wall of the base effectively drives the rotating disk and gear disk to rotate, improving operational efficiency. Furthermore, a set of clamping blocks in the movable slot at the top of the rotating disk, through the adjustment assembly, ensures precise clamping of automotive parts of different sizes. This, in turn, improves the compactness and ease of operation of the punching die structure, significantly enhancing the production efficiency and processing accuracy of automotive parts.

[0021] This invention utilizes the meshing transmission of the driving gear and the driven gear, along with the arrangement of the driving roller, transmission belt, and driven roller. A third servo motor simultaneously drives the first and second threaded rods to rotate synchronously, thereby efficiently driving the moving block to move linearly within the limiting groove. The movable connection between the outer wall of the moving block and the inner wall of the limiting groove ensures smooth movement. The moving plate installed at one end of the moving block and the second through slot on its top provide precise positioning and support for subsequent punching operations, further improving production efficiency and processing accuracy.

[0022] This invention uses a fourth servo motor to drive the third threaded rod to rotate, causing the slider to move. This, in turn, drives the first hydraulic cylinder and the first punch to achieve precise displacement, meeting diverse punching needs. The second hydraulic cylinder on the edge of the rotating disk controls the position of the limiting plate through its extension and retraction, which can fix the parts to be processed and ensure the stability of the punching process. The third hydraulic cylinder on the second support frame drives the connecting block to move up and down along the slide, while the fourth hydraulic cylinder at the bottom of the connecting block is responsible for the precise positioning and punching operation of the second punch. This not only improves the punching accuracy but also greatly enhances the adaptability and operational flexibility of the mold, achieving the effect of high efficiency, precision, and automation in the punching operation of automotive parts. Attached Figure Description

[0023] Figure 1 This is a perspective view of the overall structure of this utility model;

[0024] Figure 2 It is the base structure schematic view of the utility model;

[0025] Figure 3 It is the first support frame structure schematic view of the utility model;

[0026] Figure 4 It is the rotating disc structure schematic view of the utility model;

[0027] Figure 5 It is the through hole structure schematic view of the utility model.

[0028] In the drawing: 1, base; 2, first support frame; 3, second support frame; 4, recess; 5, through hole; 6, annular groove; 7, mounting groove; 8, ball; 9, rotating disc; 10, gear plate; 11, moving groove; 12, clamping block; 14, first through slot; 15, transmission gear; 16, first servo motor; 17, second servo motor; 18, bidirectional screw; 19, third servo motor; 20, driving gear; 21, driven gear; 22, limiting groove; 23, first threaded rod; 24, driving roller; 25, transmission belt; 26, driven roller; 27, second threaded rod; 28, moving plate; 29, second through slot; 30, third through slot; 31, fourth servo motor; 32, third threaded rod; 33, sliding block; 34, first hydraulic cylinder; 35, first puncher; 36, second hydraulic cylinder; 37, limiting plate; 38, sliding groove; 39, third hydraulic cylinder; 40, connecting block; 41, fourth hydraulic cylinder; 42, second puncher; 43, moving block. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to 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 scope of protection of the utility model.

[0030] In the description of the utility model, it should be explained that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0031] In the description of the utility model, it is necessary to explain, unless there is definite stipulation and limitation, the term '' install '' '' set up '' '' connect '' and the like, should do broad sense understanding, for example '' connect '', can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can through the indirect connection of intermediate medium, can be the intercommunication of two elements. For ordinary skilled person in the art, the specific meaning of the above-mentioned term in the utility model can be understood according to specific circumstances.

[0032] Embodiment 1: please refer to Figure 1 、 Figure 2 and Figure 5 The utility model provides a kind of punching die for automobile parts production, including base 1, first support frame 2 and second support frame 3, the edge of the top of base 1 is provided with first support frame 2, the side of first support frame 2 is provided with second support frame 3, and the other end of second support frame 3 is provided on the edge of the top of base 1;

[0033] The top of base 1 is provided with recess 4, the middle of inner bottom wall of recess 4 is provided with through hole 5, the bottom of inner wall of recess 4 is provided with annular groove 6, the top of inner wall of recess 4 is provided with several installation grooves 7, the inside of installation groove 7 is movably connected with ball 8, the outer wall of ball 8 is movably connected with rotating disc 9, the bottom of the outer wall of rotating disc 9 is provided with gear disc 10, and the outer wall of gear disc 10 is movably connected in the inside of annular groove 6, the outer wall of base 1 is provided with driving assembly, and driving assembly is used to drive rotating disc 9 and gear disc 10 rotation;

[0034] The top of rotating disc 9 is provided with moving groove 11, the inner wall of moving groove 11 is movably connected with a group of clamping blocks 12, and adjusting assembly is arranged in the inside of moving groove 11, and adjusting assembly is used to adjust the position of a group of clamping blocks 12;

[0035] Further, through the movably connected of recess 4, installation groove 7, ball 8 and the outer wall of rotating disc 9 of base 1 and the movably arranged of gear disc 10 in annular groove 6, it is favorable to improve the smoothness of rotating disc 9 rotation, and the driving assembly arranged on the outer wall of base 1 can effectively drive rotating disc 9 and gear disc 10 rotation, improve operating efficiency, in addition, the inside of moving groove 11 of the top of rotating disc 9 is provided with a group of clamping blocks 12, and the precise clamping of different size automobile parts is ensured by adjusting assembly, to further facilitate to improve the compact structure of punching die and operation convenient, can significantly improve the production efficiency and machining precision of automobile parts.

[0036] Embodiment 2: please refer to Figure 1 and Figure 2The utility model provides an embodiment that drive assembly includes first through slot 14, and first through slot 14 is set up in the outer wall of base 1, and the inner wall of first through slot 14 is swinged to be connected with transmission gear 15, and the outer wall of transmission gear 15 is engaged with the outer wall of gear disc 10,

[0037] The top of transmission gear 15 is provided with first servo motor 16 through transmission rod, and the bottom of one side of first servo motor 16 is provided with the outer wall of first support frame 2,

[0038] Adjusting assembly includes second servo motor 17, and the inner wall of second servo motor 17 is embedded with the outer wall of mobile groove 11, and the output end of second servo motor 17 is provided with two -way screw rod 18, and the outer wall of two -way screw rod 18 is screwed and penetrates one side of a group of clamping blocks 12,

[0039] Further, through the swing connection transmission gear 15 in the first through slot 14 set up in the outer wall of base 1, and with the outer wall of gear disc 10 engagement installation, start first servo motor 16 again, and then realize the efficient, accurate drive of gear disc 10, in addition, the second servo motor 17 in adjusting assembly is embedded in the inner wall of mobile groove 11, and the output end connected two -way screw rod 18 can be screwed and penetrate one side of a group of clamping blocks 12, through the operation of second servo motor 17, the accurate adjustment of the position of clamping block 12 can be easily realized, to meet the clamping demand of different size automobile parts, and then improve the production efficiency and processing quality of automobile parts.

[0040] Embodiment 3: please refer to Figure 1 、 Figure 3 and Figure 4 An embodiment provided by the utility model, the top of the outer wall of first support frame 2 is provided with third servo motor 19, the output end of third servo motor 19 is provided with driving gear 20, the outer wall of driving gear 20 is provided with driven gear 21, and a group of limit grooves 22 are set up in the inner wall of first support frame 2,

[0041] The bottom of driven gear 21 is provided with first threaded rod 23, the top of driven gear 21 is provided with driving roller 24, the outer wall of driving roller 24 is provided with transmission belt 25, the other end of the inner wall of transmission belt 25 is provided with driven roller 26, the bottom of driven roller 26 is provided with second threaded rod 27, the outer wall of first threaded rod 23 and second threaded rod 27 is respectively screw -threaded with moving block 43, and the outer wall of moving block 43 is swinged to be connected in the inner wall of limit groove 22,

[0042] One end of moving block 43 is provided with moving plate 28, and the middle of the top of moving plate 28 is provided with second through slot 29,

[0043] Further, through the meshing transmission of the driving gear 20 and the driven gear 21, the arrangement of the driving roller 24, the transmission belt 25 and the driven roller 26, the first threaded rod 23 and the second threaded rod 27 can be simultaneously driven to rotate synchronously through the third servo motor 19, thereby efficiently driving the linear motion of the moving block 43 in the limiting groove 22, and the activity connection between the outer wall of the moving block 43 and the inner wall of the limiting groove 22 ensures the stability of the motion, and the moving plate 28 installed at one end of the moving block 43 and the second through groove 29 at the top of the moving plate 28 provide accurate positioning and support for the subsequent punching operation, further improving the production efficiency and machining precision.

[0044] Embodiment 4: please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , the utility model provides a kind of embodiment, the top of first support frame 2 is equipped with third through groove 30, the inner wall of third through groove 30 is embedded with fourth servo motor 31, the output of fourth servo motor 31 is equipped with third threaded rod 32, the outer wall of third threaded rod 32 is threaded with slider 33, the bottom of slider 33 is equipped with first hydraulic cylinder 34, the output of first hydraulic cylinder 34 is equipped with first puncher 35;

[0045] The edge of rotating disc 9 is provided with second hydraulic cylinder 36, and the output of second hydraulic cylinder 36 is provided with limiting plate 37.

[0046] The front of second support frame 3 is equipped with sliding slot 38, and the top of second support frame 3 is provided with third hydraulic cylinder 39, the output of third hydraulic cylinder 39 is provided with connecting block 40 penetrating the top of second support frame 3, and the outer wall of connecting block 40 is arranged in the inner wall of sliding slot 38, the bottom of connecting block 40 is provided with fourth hydraulic cylinder 41, and the output of fourth hydraulic cylinder 41 is provided with second puncher 42.

[0047] Further, the fourth servo motor 31 drives the third threaded rod 32 to rotate, so that the slider 33 moves, and then drives the first hydraulic cylinder 34 and the first puncher 35 to realize accurate displacement, meets the diversified punching needs, the second hydraulic cylinder 36 on the edge of rotating disc 9 controls the position of limiting plate 37 through telescopic action, can fix the part to be processed, ensures the stability of punching process, the third hydraulic cylinder 39 on the second support frame 3 drives the connecting block 40 to move up and down along the sliding slot 38, and the fourth hydraulic cylinder 41 at the bottom of the connecting block 40 is responsible for the accurate positioning and punching operation of the second puncher 42, thereby not only improving the punching precision, but also greatly enhancing the adaptability and operation flexibility of the mold, achieving the effects of high efficiency, precision and automation for automobile part punching operation.

[0048] The working principle is that the recess 4, the mounting groove 7, the movable connection of the ball 8 and the outer wall of the rotating disc 9, and the movable arrangement of the gear disc 10 in the annular groove 6 of the base 1 are beneficial to improve the smoothness of the rotation of the rotating disc 9. The driving assembly arranged on the outer wall of the base 1 can effectively drive the rotating disc 9 and the gear disc 10 to rotate, improve the operation efficiency, and further improve the compactness of the punching die structure and the convenient operation. The production efficiency and machining precision of the automobile parts can be significantly improved. The transmission gear 15 is movably connected in the first through groove 14 opened on the outer wall of the base 1 and is meshed and installed with the outer wall of the gear disc 10. Then the first servo motor 16 is started, and the efficient and accurate driving of the gear disc 10 is realized. In addition, the second servo motor 17 in the adjusting assembly is embedded in the inner wall of the moving groove 11. The bidirectional lead screw 18 connected to the output end of the second servo motor 17 can be threaded through one side of a group of clamping blocks 12. Through the operation of the second servo motor 17, the position of the clamping block 12 can be easily and accurately adjusted, so as to meet the clamping needs of automobile parts of different sizes, and the production efficiency and machining quality of automobile parts are improved. Through the meshing transmission of the driving gear 20 and the driven gear 21, the setting of the driving roller 24, the transmission belt 25 and the driven roller 26, the third servo motor 19 can simultaneously drive the first threaded rod 23 and the second threaded rod 27 to rotate synchronously, thereby efficiently driving the linear motion of the moving block 43 in the limiting groove 22. The movable connection between the outer wall of the moving block 43 and the inner wall of the limiting groove 22 ensures the stability of the movement. The moving plate 28 installed at one end of the moving block 43 and the second through groove 29 on the top thereof provide accurate positioning and support for the subsequent punching operation, further improving the production efficiency and machining precision. The fourth threaded rod 32 is driven to rotate by the fourth servo motor 31, so that the sliding block 33 moves, thereby driving the first hydraulic cylinder 34 and the first punch 35 to realize accurate displacement and meet the diversified punching needs. The second hydraulic cylinder 36 on the edge of the rotating disc 9 controls the position of the limiting plate 37 through the telescopic action, so as to fix the parts to be machined and ensure the stability of the punching process. The third hydraulic cylinder 39 on the second support frame 3 drives the connecting block 40 to move up and down along the sliding groove 38, and the fourth hydraulic cylinder 41 at the bottom of the connecting block 40 is responsible for the accurate positioning and punching operation of the second punch 42. Therefore, not only the punching precision is improved, but also the adaptability and operation flexibility of the die are greatly enhanced, achieving the effects of high efficiency, precision and automation of the automobile part punching operation.

[0049] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A punching die for producing an automobile part, comprising a base (1), a first support frame (2) and a second support frame (3), characterized in that: The edge of the top of the base (1) is provided with a first support frame (2), one side of the first support frame (2) is provided with a second support frame (3), and the other end of the second support frame (3) is arranged on the edge of the top of the base (1); The top of the base (1) is provided with a groove (4), the middle of the inner bottom wall of the groove (4) is provided with a through hole (5), the bottom of the inner wall of the groove (4) is provided with an annular groove (6), the top of the inner wall of the groove (4) is provided with a plurality of mounting grooves (7), the inside of the mounting groove (7) is movably connected with a ball (8), the outer wall of the ball (8) is movably connected with a rotating disc (9), the bottom of the outer wall of the rotating disc (9) is provided with a gear disc (10), and the outer wall of the gear disc (10) is movably connected in the annular groove (6), the outer wall of the base (1) is provided with a driving assembly, and the driving assembly is used to drive the rotating disc (9) and the gear disc (10) to rotate; The top of the rotating disc (9) is provided with a moving groove (11), the inner wall of the moving groove (11) is movably connected with a group of clamping blocks (12), and the inside of the moving groove (11) is provided with an adjusting assembly.

2. The piercing die for producing an automobile part according to claim 1, wherein: The driving assembly comprises a first through groove (14), and the first through groove (14) is arranged on the outer wall of the base (1). The inner wall of the first through groove (14) is movably connected with a transmission gear (15), and the outer wall of the transmission gear (15) is engaged with the outer wall of the gear disc (10).

3. The piercing die for producing an automobile part according to claim 2, wherein: The top of the transmission gear (15) is provided with a first servo motor (16) through a transmission rod, and one side of the first servo motor (16) is arranged on the bottom of the outer wall of the first support frame (2).

4. The piercing die for producing an automobile part according to claim 1, wherein: The adjusting assembly comprises a second servo motor (17), and the outer wall of the second servo motor (17) is embeddedly arranged on the inner wall of the moving groove (11). The output end of the second servo motor (17) is provided with a bidirectional screw rod (18), and the outer wall of the bidirectional screw rod (18) is threadedly penetrated through one side of the group of clamping blocks (12).

5. The piercing die for producing an automobile part according to claim 1, wherein: The top of the outer wall of the first support frame (2) is provided with a third servo motor (19), the output end of the third servo motor (19) is provided with a driving gear (20), the outer wall of the driving gear (20) is engaged with a driven gear (21), and the inner wall of the first support frame (2) is provided with a group of limiting grooves (22).

6. The piercing die for producing an automobile part according to claim 5, wherein: The bottom of the driven gear (21) is provided with a first threaded rod (23), the top of the driven gear (21) is provided with a driving roller (24), the outer wall of the driving roller (24) is provided with a transmission belt (25), the other end of the inner wall of the transmission belt (25) is provided with a driven roller (26), the bottom of the driven roller (26) is provided with a second threaded rod (27), and the outer walls of the first threaded rod (23) and the second threaded rod (27) are respectively threadedly connected with a moving block (43), and the outer wall of the moving block (43) is movably connected with the inner wall of the limiting groove (22).

7. The piercing die for producing an automobile part according to claim 6, wherein: One end of the moving block (43) is provided with a moving plate (28), and the top of the moving plate (28) is provided with a second through groove (29).

8. The piercing die for producing an automobile part according to claim 1, wherein: The top of the first support frame (2) is provided with a third through slot (30), and the inner wall of the third through slot (30) is provided with a fourth servo motor (31) in a matched mode, the output end of the fourth servo motor (31) is provided with a third threaded rod (32), the outer wall of the third threaded rod (32) is provided with a sliding block (33) in a threaded mode, the bottom of the sliding block (33) is provided with a first hydraulic cylinder (34), and the output end of the first hydraulic cylinder (34) is provided with a first puncher (35).

9. The piercing die for producing an automobile part according to claim 1, wherein: The edge of the rotating disc (9) is provided with a second hydraulic cylinder (36), and the output end of the second hydraulic cylinder (36) is provided with a limiting plate (37).

10. The piercing die for producing an automobile part according to claim 1, wherein: The front of the second support frame (3) is provided with a sliding slot (38), the top of the second support frame (3) is provided with a third hydraulic cylinder (39), the output end of the third hydraulic cylinder (39) penetrates through the top of the second support frame (3) and is provided with a connecting block (40), the outer wall of the connecting block (40) is arranged on the inner wall of the sliding slot (38), the bottom of the connecting block (40) is provided with a fourth hydraulic cylinder (41), and the output end of the fourth hydraulic cylinder (41) is provided with a second puncher (42).

Images