Automobile machining punching machine

By designing structures such as lifting frames, fixed limit mechanisms, electric push and pull rods, movable clamping mechanisms and bidirectional threaded rods on automotive processing punches, the problem of cumbersome replacement and installation operations of existing punches is solved, and fast and convenient mold replacement and efficient product processing are achieved.

CN222856498UActive Publication Date: 2025-05-13HEBEI XINJIU HEAVY MASCH MFG CO LTD
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Patent Information

Application Number
CN202421196059.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-29
Publication Date
2025-05-13
Estimated Expiration
2034-05-29

AI Technical Summary

Technical Problem

The existing punch presses are cumbersome to operate during mold replacement and installation, with high labor intensity, and may lead to misoperation and affect product quality.

Method used

An automobile processing punch is designed, using a lifting frame and a fixed limiting mechanism to quickly adjust the fixed limiting mechanism, an electric push and pull rod and a movable clamping mechanism to quickly adjust the clamping mechanism, and a bidirectional threaded rod and a movable limiting mechanism to achieve stable fixation of the clamping mechanism.

Benefits of technology

It realizes the speed and convenience of mold replacement and installation, reduces the labor intensity of operators, and improves replacement efficiency and product quality stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of punching machines, and discloses an automobile machining punching machine which comprises a main body, a fixing groove is formed in the top end of the main body, a supporting arm is fixedly connected to the rear surface of the main body, a hydraulic rod is fixedly connected to the top end of the inner side of the supporting arm, and a lifting frame is fixedly connected to the bottom end of the hydraulic rod. The top of the lifting frame is fixedly connected with a fixed limiting mechanism; by arranging the lifting frame and the fixing and limiting mechanism, the fixing and limiting mechanism can be quickly adjusted when the upper die is replaced, so that the fixing and limiting mechanism does not limit the upper die any more, and the upper die can be quickly pulled out from the inner side of the lifting frame; and during replacement, only the upper die needs to be inserted into the inner side of the lifting frame, the fixing and limiting mechanism can automatically limit and fix the upper die, the labor intensity of operators is greatly reduced, the replacement efficiency of the upper die is improved, and operation is convenient.
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Description

Technical Field

[0001] The utility model relates to the technical field of punching machines, and more specifically to an automobile processing punching machine. Background Art

[0002] A punch press is a stamping press. In national production, the stamping process has the advantages of saving materials and energy, high efficiency, low technical requirements for operators, and the ability to produce products that cannot be produced by mechanical processing through various mold applications. Therefore, its use is becoming more and more extensive. Stamping production is mainly for sheet metal. Through the mold, blanking, punching, forming, drawing, trimming, fine blanking, shaping, riveting and extrusion can be made, which are widely used in various fields. When processing automobile parts or sheet metal parts, a one-time forming process is usually performed through a processing punch press, so as to maximize the strength of the parts and improve the processing efficiency.

[0003] During the use of existing punching machines, the mold is usually replaced according to the shape of the required support, and most molds are usually connected and fixed with bolts during installation to ensure stability and improve product quality, so that the mold can be installed and used. In the actual operation process, when fixing with bolts, it is usually necessary to operate multiple bolts, and the installation process is more troublesome. In addition, the mold may be replaced regularly according to the need for product replacement. The operation is more cumbersome, which increases the labor intensity of the operator. For this reason, we propose an automobile processing punching machine. Utility Model Content

[0004] In order to overcome the above defects of the prior art, the utility model provides an automobile processing punching machine to solve the problems existing in the above background technology.

[0005] The utility model provides the following technical solution: an automobile processing punching machine, comprising a main body, a fixing groove is provided at the top of the main body, a support arm is fixedly connected to the rear surface of the main body, a hydraulic rod is fixedly connected to the inner top of the support arm, a lifting frame is fixedly connected to the bottom end of the hydraulic rod, and a fixed limiting mechanism is fixedly connected to the top of the lifting frame;

[0006] Furthermore, an electric push-pull rod is fixedly connected inside the main body, and a movable clamping mechanism is fixedly connected to the top of the electric push-pull rod.

[0007] Furthermore, the main body is movably connected to a bidirectional threaded rod inside, one end of the bidirectional threaded rod is fixedly connected to a connecting limit plate, the outer surface of the bidirectional threaded rod is fixedly sleeved with a fixed limit ring, the other end of the bidirectional threaded rod is fixedly connected to a connecting turntable, the outer surface of the bidirectional threaded rod is movably sleeved with a threaded bottom plate, and the top of the threaded bottom plate is fixedly connected to a movable limiting mechanism.

[0008] Furthermore, a movable switch door is movably connected to the surface of the main body, a fixed positioning rod is fixedly connected to the surface of the movable switch door, a deflection limit rod is movably sleeved on the outer side of the surface of the fixed positioning rod, a connecting handle is fixedly connected to the surface of the deflection limit rod, and a fixed limit block is fixedly connected to the surface of the main body.

[0009] Furthermore, the fixed limiting mechanism includes a fixed sleeve, the interior of the fixed sleeve is movably connected to a movable rod, the outer surface of the movable rod is fixedly sleeved with a force-bearing ring, the top of the force-bearing ring is fixedly connected to a first spring, and the top of the movable rod is fixedly connected to a first connecting pull block.

[0010] Furthermore, the bottom end of the movable insertion rod is fixedly connected with a pressure inclined surface.

[0011] Furthermore, the movable clamping mechanism includes a lifting top block, the inner side of the end of the lifting top block is movably connected with a connecting deflection arm, the other end of the connecting deflection arm is movably connected with a connecting mounting block, the top of the connecting mounting block is fixedly connected with a movable clamping frame, the inner side of the movable clamping frame is movably connected to an anti-sliding block, and a through hole is opened inside the connecting mounting block.

[0012] Furthermore, a fixed connecting block is fixedly connected to the top of the anti-sliding plate, a fastening bolt is movably connected between the fixed connecting block and the movable clamping frame, a first limiting plate is fixedly connected to the interior of the main body, and a second limiting plate is fixedly connected to the interior of the main body, and the inner surfaces of the first limiting plate and the second limiting plate are both in contact with the surface of the connecting mounting block.

[0013] Furthermore, the movable limiting mechanism includes a fixed sleeve block, the interior of the fixed sleeve block is movably connected to a movable limiting rod, the outer surface of the movable limiting rod is fixedly sleeved with an installation ring, one side of the installation ring is fixedly connected to a second spring, and one end of the movable limiting rod is fixedly connected to a second connecting pull block.

[0014] Furthermore, the second limiting plate and the main body are both provided with through grooves adapted to the movable limiting rod.

[0015] Technical effects and advantages of the utility model:

[0016] 1. The utility model is provided with a lifting frame and a fixed limiting mechanism, so that the fixed limiting mechanism can be quickly adjusted when the upper mold is replaced, so that the fixed limiting mechanism no longer restricts the upper mold, and the upper mold can be quickly withdrawn from the inner side of the lifting frame, so that the upper mold can be quickly disassembled and replaced. When replacing, it is only necessary to insert the upper mold into the inner side of the lifting frame, and the fixed limiting mechanism can limit and fix the upper mold by itself, which greatly reduces the labor intensity of the operator, improves the efficiency of replacing the upper mold, and is easy to operate.

[0017] 2. The utility model is provided with a movable clamping mechanism and an electric push-pull rod, which facilitates the rapid adjustment of the movable clamping mechanism by lifting and lowering the electric push-pull rod, so that the movable clamping mechanism can quickly and stably clamp or release the lower mold, thereby enabling the lower mold to be quickly disassembled and assembled, and the operation is convenient and quick, and the structure is simple, thereby reducing the maintenance cost during subsequent use.

[0018] 3. The utility model drives the bidirectional threaded rod to rotate by rotating the connecting turntable, so that the threaded base plate can move in opposite directions on the outside of the bidirectional threaded rod at the same time, driving the movable limiting mechanism to move, so that the position of the movable limiting mechanism can be adjusted, so that after the movable clamping mechanism clamps and fixes the lower die, the position of the movable clamping mechanism can be limited and fixed by the movable limiting mechanism, thereby improving the overall stability of the movable clamping mechanism, and can stably clamp and fix the lower die, so that the automotive parts can be stably stamped. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 This is a schematic diagram of the structure of the electric push-pull rod of the utility model.

[0021] Figure 3 For the utility model Figure 1 Enlarged structural diagram at A in the middle.

[0022] Figure 4 It is a schematic diagram of the structure of the movable clamping mechanism of the utility model.

[0023] Figure 5 It is a structural schematic diagram of the fixed limiting mechanism of the utility model.

[0024] Figure 6 It is a schematic diagram of the structure of the movable limiting mechanism of the utility model.

[0025] The accompanying drawings are marked as follows: 1, main body; 2, fixed groove; 3, support arm; 4, hydraulic rod; 5, lifting frame; 6, fixed limit mechanism; 7, movable clamping mechanism; 8, electric push-pull rod; 9, movable opening and closing door; 10, fixed positioning rod; 11, deflection limit rod; 12, fixed limit block; 13, connecting handle; 14, first limit plate; 15, second limit plate; 16, movable limit mechanism; 17, threaded bottom plate; 18, two-way threaded rod; 19, connecting limit plate; 20, fixed limit 1. Positioning ring; 21. Connecting turntable; 22. Lifting top block; 23. Connecting deflection arm; 24. Connecting mounting block; 25. Movable clamping frame; 26. Anti-sliding block; 27. Fixed sleeve; 28. Movable plug rod; 29. ​​Force-bearing ring; 30. First spring; 31. First connecting pull block; 32. Compressed inclined surface; 33. Fixed sleeve; 34. Movable limiting rod; 35. Mounting ring; 36. Second spring; 37. Second connecting pull block; 38. Fixed connecting block; 39. Fastening bolt. DETAILED DESCRIPTION

[0026] The following will provide a clear and complete description of the technical solution in the utility model in conjunction with the accompanying drawings in the utility model. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative, and the utility model is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0027] Reference Figure 1-6 The utility model provides an automobile processing punching machine, comprising a main body 1, a fixing groove 2 is provided at the top of the main body 1, a support arm 3 is fixedly connected to the rear surface of the main body 1, a hydraulic rod 4 is fixedly connected to the inner top of the support arm 3, a lifting frame 5 is fixedly connected to the bottom end of the hydraulic rod 4, and a fixed limiting mechanism 6 is fixedly connected to the top of the lifting frame 5;

[0028] Among them, the inside of the main body 1 is fixedly connected with an electric push-pull rod 8, and the top of the electric push-pull rod 8 is fixedly connected with a movable clamping mechanism 7, so that the electric push-pull rod 8 can quickly and stably adjust the movable clamping mechanism 7, so that the movable clamping mechanism 7 can quickly and stably clamp and fix the lower mold, or can quickly disassemble the lower mold, so that the lower mold can be quickly disassembled, assembled and replaced, thereby improving the replacement efficiency of the lower mold and reducing the labor intensity of the operator.

[0029] Among them, the main body 1 is movably connected with a bidirectional threaded rod 18 inside, one end of the bidirectional threaded rod 18 is fixedly connected with a connection limit plate 19, the outer surface of the bidirectional threaded rod 18 is fixedly sleeved with a fixed limit ring 20, the other end of the bidirectional threaded rod 18 is fixedly connected with a connection turntable 21, the outer surface of the bidirectional threaded rod 18 is movably sleeved with a threaded bottom plate 17, and the top of the threaded bottom plate 17 is fixedly connected with a movable limit mechanism 16, so that the rotation of the connection turntable 21 can drive the bidirectional threaded rod 18 to rotate, so that the threaded bottom plate 17 can be on the bidirectional threaded rod The outer side of the surface of 18 moves in the opposite direction at the same time, driving the movable limiting mechanism 16 to move, so that after the movable clamping mechanism 7 clamps and fixes the lower mold, the movable limiting mechanism 16 can limit and fix the state of the movable clamping mechanism 7, so that the lower mold can be clamped and fixed stably. At the same time, when the two-way threaded rod 18 rotates, the position of the two-way threaded rod 18 can be limited by connecting the limiting plate 19 and the fixed limiting ring 20 to prevent the two-way threaded rod 18 from deviating inside the main body 1, and the operation is convenient and quick.

[0030] Among them, a movable switch door 9 is movably connected to the surface of the movable switch door 9, a fixed positioning rod 10 is fixedly connected to the surface of the movable switch door 9, a deflection limit rod 11 is movably sleeved on the outer side of the surface of the fixed positioning rod 10, a connecting handle 13 is fixedly connected to the surface of the deflection limit rod 11, and a fixed limit block 12 is fixedly connected to the surface of the main body 1, so that when the movable switch door 9 is in a closed state, the connecting handle 13 can drive the deflection limit rod 11 to deflect on the outer side of the surface of the fixed positioning rod 10, so that the end of the deflection limit rod 11 can quickly fit into the inner side of the fixed limit block 12, and cooperate with the fixed limit block 12, so as to quickly limit and fix the position of the movable switch door 9, and vice versa, the movable switch door 9 can also be quickly opened, so that the internal components of the main body 1 can be quickly inspected and maintained, and the operation is convenient.

[0031] Among them, the fixed limiting mechanism 6 includes a fixed sleeve 27, the interior of the fixed sleeve 27 is movably connected with a movable rod 28, the outer surface of the movable rod 28 is fixedly sleeved with a force-bearing ring 29, the top of the force-bearing ring 29 is fixedly connected with a first spring 30, and the top of the movable rod 28 is fixedly connected with a first connecting pull block 31, which is convenient for pulling the first connecting pull block 31 upwards, driving the movable rod 28 and the force-bearing ring 29 to move, compressing the first spring 30, so that the bottom end of the movable rod 28 can be quickly pulled out from the inside of the upper mold, so that the upper mold can be quickly pulled out from the inner side of the lifting frame 5, so that the upper mold can be quickly disassembled and replaced, and the operation is convenient.

[0032] Among them, the bottom end of the movable rod 28 is fixedly connected with a pressure inclined surface 32, which is convenient for moving the replaced upper mold along the inner side of the lifting frame 5, so that the upper mold will squeeze the pressure inclined surface 32, so that the movable rod 28 can move toward the inside of the fixed sleeve 27 by itself, driving the force-bearing ring 29 to move, compressing the first spring 30. When the upper mold is installed in place, the force-bearing ring 29 can be driven by the first spring 30 to reset the movable rod 28, so that the bottom end of the movable rod 28 can be quickly inserted into the top end of the upper mold, restricting and fixing the upper mold, and easy operation.

[0033] Among them, the movable clamping mechanism 7 includes a lifting top block 22, the inner side of the end of the lifting top block 22 is movably connected with a connecting deflection arm 23, the other end of the connecting deflection arm 23 is movably connected with a connecting mounting block 24, the top of the connecting mounting block 24 is fixedly connected with a movable clamping frame 25, the inner side of the movable clamping frame 25 is movably connected to an anti-sliding block 26, and a through hole is opened inside the connecting mounting block 24, so that the electric push-pull rod 8 can pull the lifting top block 22 downward, drive the connecting deflection arm 23 to deflect downward, so that the top of the connecting deflection arm 23 will move in the opposite direction at the same time, drive the connecting mounting block 24, the movable clamping frame 25 and the anti-sliding block 26 to move, so that the lower mold can be clamped and fixed quickly, otherwise the lower mold can be quickly disassembled and replaced, and the operation is convenient and quick.

[0034] Among them, a fixed connecting block 38 is fixedly connected to the top of the anti-sliding block 26, and a fastening bolt 39 is movably connected between the fixed connecting block 38 and the movable clamping frame 25. A first limiting plate 14 is fixedly connected to the inside of the main body 1, and a second limiting plate 15 is fixedly connected to the inside of the main body 1. The inner surfaces of the first limiting plate 14 and the second limiting plate 15 are both in contact with the surface of the connecting and mounting block 24, so that the fastening bolt 39 can connect and fix the movable clamping frame 25 and the fixed connecting block 38, thereby limiting and fixing the position of the anti-sliding block 26. At the same time, the first limiting plate 14 and the second limiting plate 15 can limit the movement of the connecting and mounting block 24 to prevent the connecting and mounting block 24 from shaking, and the operation is convenient.

[0035] The movable limiting mechanism 16 includes a fixed sleeve block 33, the interior of the fixed sleeve block 33 is movably connected with a movable limiting rod 34, the surface outer side of the movable limiting rod 34 is fixedly sleeved with a mounting collar 35, one side of the mounting collar 35 is fixedly connected to a second spring 36, and one end of the movable limiting rod 34 is fixedly connected to a second connecting pull block 37, so that after the lower mold is replaced and the lower mold is clamped and fixed, and the overall position of the movable limiting mechanism 16 is also adjusted, the mounting collar 35 can drive the movable limiting rod 34 to move under the action of the second spring 36, so that the end of the movable limiting rod 34 can be quickly inserted into the inner side of the surface through hole of the connecting mounting block 24, so that the position of the connecting mounting block 24 can be restricted and fixed, so that the position of the movable clamping frame 25 and the anti-sliding block 26 can be quickly restricted and fixed, so that the fixation of the lower mold can be reinforced, and the operation is convenient.

[0036] Among them, the second limit plate 15 and the main body 1 are both provided with through grooves adapted to the movable limit rod 34, so that during the process of adjusting the position of the movable limit mechanism 16, the movable limit rod 34 can move in the internal through grooves of the main body 1 and the second limit plate 15, which facilitates the adjustment of the position of the movable limit mechanism 16 and is easy to operate.

[0037] The working principle of the utility model is as follows: during use, the first connecting pull block 31 is pulled upward, driving the movable plug rod 28 and the force-bearing ring 29 to move, compressing the first spring 30, so that the bottom end of the movable plug rod 28 is contracted toward the inside of the fixed sleeve 27, and the upper mold can be quickly pulled out from the inner side of the lifting frame 5. When the upper mold is installed, the top of the upper mold is directly pushed along the inner side of the lifting frame 5, and the edge of the upper mold can squeeze the pressure-bearing inclined surface 32, so that the movable plug rod 28 can automatically contract toward the inside of the fixed sleeve 27, driving the force-bearing ring 29 to move, compressing the first spring 30, and when the upper mold is completely stuck in the inner side of the lifting frame 5, the force-bearing ring 29 is The movable plug rod 28 can be driven downward by the action of the first spring 30, so that the bottom end of the movable plug rod 28 can be quickly inserted into the lifting frame 5 and the top of the upper mold, and the upper mold can be quickly replaced and installed. Then the second connecting pull block 37 is pulled to drive the movable limit rod 34 to move, so that the other end of the movable limit rod 34 is contracted toward the inside of the fixed sleeve block 33, driving the installation collar 35 to move, compressing the second spring 36, and no longer restricting the position of the connecting and installing block 24. At this time, the electric push-pull rod 8 can push the lifting top block 22 upward, so that the connecting deflection arm 23 can be offset and expanded, so that the connecting and installing block 24, the movable clamping frame 25 and the anti-sliding block 26 can be moved. The movable limit rod 34 is moved and the lower die is no longer clamped and fixed, and then the lower die is quickly replaced. After the replacement is completed, the reverse operation is performed to quickly clamp and fix the lower die. If the size of the lower die is different, the movable clamping mechanism 7 can also clamp and fix the lower die. At this time, the second connecting pull block 37 is pulled to drive the movable limit rod 34 to move, so that the movable limit rod 34 is retracted toward the inside of the fixed sleeve block 33, and the connecting turntable 21 is rotated to drive the bidirectional threaded rod 18 to rotate, so that the movable limit mechanism 16 and the threaded bottom plate 17 can move in opposite directions at the same time. When the movable limit mechanism 16 and the threaded bottom plate 17 move to the surface of the connecting mounting block 24, fine adjustment is performed at this time. When the end of the movable limit rod 34 is in contact with the connecting When the through holes on the surface of the connecting mounting block 24 are aligned, the mounting ring 35 can drive the movable limit rod 34 to reset under the action of the second spring 36, so that the end of the movable limit rod 34 can be reinserted into the inner side of the surface of the connecting mounting block 24, so that it can be restricted and fixed again, thereby improving the stability of the lower mold clamping. When it is necessary to inspect and maintain the internal components of the main body 1, the deflection limit rod 11 is driven to deflect on the outer side of the surface of the fixed positioning rod 10 by deflecting the connecting handle 13, so that the end of the deflection limit rod 11 can quickly detach from the inner side of the fixed limit block 12, so that the movable switch door 9 can be quickly opened, so that the internal components of the main body 1 can be quickly inspected and maintained, and the operation is convenient and quick.

[0038] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0039] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0040] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An automobile processing punching machine, comprising a main body (1), characterized in that: The top of the main body (1) is provided with a fixing groove (2), the rear surface of the main body (1) is fixedly connected to a support arm (3), the inner top of the support arm (3) is fixedly connected to a hydraulic rod (4), the bottom of the hydraulic rod (4) is fixedly connected to a lifting frame (5), and the top of the lifting frame (5) is fixedly connected to a fixed limiting mechanism (6); A bidirectional threaded rod (18) is movably connected inside the main body (1), one end of the bidirectional threaded rod (18) is fixedly connected to a connection limit plate (19), a fixed limit ring (20) is fixedly sleeved on the outer surface of the bidirectional threaded rod (18), the other end of the bidirectional threaded rod (18) is fixedly connected to a connection turntable (21), a threaded bottom plate (17) is movably sleeved on the outer surface of the bidirectional threaded rod (18), and a movable limit mechanism (16) is fixedly connected to the top of the threaded bottom plate (17).

2. The automobile processing punch press according to claim 1, characterized in that: An electric push-pull rod (8) is fixedly connected inside the main body (1), and a movable clamping mechanism (7) is fixedly connected to the top of the electric push-pull rod (8).

3. The automobile processing punch press according to claim 2, characterized in that: The surface of the main body (1) is movably connected to a movable switch door (9), the surface of the movable switch door (9) is fixedly connected to a fixed positioning rod (10), the outer side of the surface of the fixed positioning rod (10) is movably sleeved with a deflection limit rod (11), the surface of the deflection limit rod (11) is fixedly connected to a connecting handle (13), and the surface of the main body (1) is fixedly connected to a fixed limit block (12).

4. The automobile processing punch press according to claim 3, characterized in that: The fixed limiting mechanism (6) comprises a fixed sleeve (27), the interior of the fixed sleeve (27) is movably connected to a movable plug rod (28), the outer surface of the movable plug rod (28) is fixedly sleeved with a force-bearing ring (29), the top of the force-bearing ring (29) is fixedly connected to a first spring (30), and the top of the movable plug rod (28) is fixedly connected to a first connecting pull block (31).

5. The automobile processing punch press according to claim 4, characterized in that: The bottom end of the movable insertion rod (28) is fixedly connected to a pressure inclined surface (32).

6. The automobile processing punch press according to claim 5, characterized in that: The movable clamping mechanism (7) comprises a lifting top block (22), the inner side of the end of the lifting top block (22) is movably connected to a connecting deflection arm (23), the other end of the connecting deflection arm (23) is movably connected to a connecting mounting block (24), the top end of the connecting mounting block (24) is fixedly connected to a movable clamping frame (25), the inner side of the movable clamping frame (25) is movably connected to an anti-sliding block (26), and a through hole is provided inside the connecting mounting block (24).

7. The automobile processing punch press according to claim 6, characterized in that: The top of the anti-sliding block (26) is fixedly connected with a fixed connection block (38), and a fastening bolt (39) is movably connected between the fixed connection block (38) and the movable clamping frame (25). The interior of the main body (1) is fixedly connected with a first limit plate (14), and the interior of the main body (1) is fixedly connected with a second limit plate (15), and the inner side surfaces of the first limit plate (14) and the second limit plate (15) are both in contact with the surface of the connecting mounting block (24).

8. The automobile processing punch press according to claim 7, characterized in that: The movable limiting mechanism (16) comprises a fixed sleeve block (33), the interior of the fixed sleeve block (33) is movably connected to a movable limiting rod (34), the outer surface of the movable limiting rod (34) is fixedly sleeved with a mounting collar (35), one side of the mounting collar (35) is fixedly connected to a second spring (36), and one end of the movable limiting rod (34) is fixedly connected to a second connecting pull block (37).

9. The automobile processing punch press according to claim 8, characterized in that: The second limiting plate (15) and the main body (1) are both provided with through grooves adapted to the movable limiting rod (34).