Punching device for automobile parts

By using an L-shaped pressure bar driven by a hydraulic cylinder and fixed with a rubber pad, the problem of punching adaptability for automotive parts of different sizes and specifications is solved, achieving high-precision punching and convenient debris removal.

CN223970720UActive Publication Date: 2026-03-06FOSHAN SHENGSAI AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-10
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing automotive parts punching equipment cannot adapt to parts of different sizes and specifications, the management of fixing blocks is inconvenient, and the punching accuracy is insufficient.

Method used

The L-shaped pressure bar driven by a hydraulic cylinder is used for lifting and lateral movement, combined with rubber pads for fixation, to accommodate parts of different sizes and specifications, and to collect and clean debris through limit notches and elastic mechanisms.

Benefits of technology

It improves punching accuracy, has a wide range of applications, facilitates debris removal, and reduces management complexity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an automobile spare part punching device, which belongs to the technical field of automobile spare part processing, and comprises a working table, a punching mechanism arranged at the top of the working table, and a fixing mechanism arranged in the working table and used for pressing and fixing automobile spare parts. The descended L-shaped pressing rod can tightly press the edge part of the automobile part through a rubber pad and fix the edge part on the workbench, so that the automobile part is fixed during punching, the punching precision is improved, the L-shaped pressing rod can be driven to transversely move through stretching and retracting of the air cylinder, and the punching efficiency is improved. The L-shaped pressing rod which moves transversely and descends can press and fix the edge parts of the automobile parts of different sizes and specifications, the application range is wide, and management is convenient.
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Description

Technical Field

[0001] This utility model belongs to the field of automotive parts processing technology, specifically relating to a punching device for automotive parts. Background Technology

[0002] Automotive parts are fundamental components of a car. They can be categorized by end use into body parts, transmission parts, chassis parts, etc. Based on market structure, they can be divided into repair market parts, general-purpose parts, special-purpose parts, and export-oriented parts. In general, automotive parts play a crucial role in the production, repair, and use of automobiles. During the manufacturing process of automotive parts, punching devices are used to create holes within the parts for purposes such as bolt installation.

[0003] Patent CN214235848U discloses "a punching device for automotive parts, including a worktable, a U-shaped fixing block fixedly connected to one side of the top surface of the worktable, a mounting plate provided at the top of the fixing block, a stamping die fixedly connected to one side of the bottom surface of the mounting plate, and a rotating shaft rotatably inserted into the other side of the bottom surface of the mounting plate. This punching device for automotive parts reduces the processing steps of the parts, lowers the processing cost, and improves safety and processing efficiency."

[0004] Although the existing technology can punch automotive parts and uses fixing blocks to limit the movement of automotive parts during punching, the limiting effect of the fixing blocks means that the stamping device can only punch automotive parts of the same size and specification. For the punching needs of automotive parts of different sizes and specifications, it is necessary to use fixing blocks of other sizes and specifications to match the automotive parts. Managing a large number of fixing blocks of different sizes is inconvenient and therefore needs to be improved. Utility Model Content

[0005] The purpose of this invention is to provide a punching device for automotive parts in order to solve the above-mentioned problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A punching device for automotive parts includes a worktable, a punching mechanism mounted on the top of the worktable, and a fixing mechanism mounted inside the worktable for pressing and fixing the automotive parts. The fixing mechanism includes an electric push rod located at the bottom of the worktable, a retaining frame fixedly located at the top of the electric push rod, a slider slidably located at the top of the retaining frame, and an L-shaped pressure bar fixedly located at the top of the slider for pressing and fixing the automotive parts on the top of the worktable downwards. The top of the worktable has a limiting notch for the L-shaped pressure bar to pass through, and the worktable has an elastic mechanism for applying damping to the sliding L-shaped pressure bar.

[0008] As a further optimization of this utility model, the punching mechanism includes a fixed frame fixedly disposed at the top edge of the workbench, a hydraulic cylinder fixedly installed on the top inner side of the fixed frame, a mounting base fixedly disposed at the bottom end of the hydraulic cylinder, and a punching head fixedly installed at the bottom of the mounting base.

[0009] As a further optimization of this utility model, a base plate is fixedly provided between the bottom of the legs of the workbench, and the electric push rod is fixedly installed on the top of the base plate.

[0010] As a further optimization of this utility model, the outer side of the L-shaped pressure rod is provided with a collection box that abuts against the bottom of the workbench, and the bottom end of the L-shaped pressure rod extends through and out of the collection box.

[0011] As a further optimization of this utility model, the elastic mechanism includes a connecting plate fixedly disposed on the outer wall of the bottom end of the L-shaped pressure rod, and a spring fixedly disposed on the top of the connecting plate for pushing the collection box upward.

[0012] As a further optimization of this utility model, a material receiving baffle can be detachably installed in the material receiving port opened on one side of the bottom of the collection box, and a rubber pad for abutting against the top of the automotive parts is fixedly installed on the top of the inner side of the L-shaped pressure rod.

[0013] As a further optimization of this utility model, a cylinder for driving the L-shaped pressure rod to move laterally is fixedly installed between the top of one end of the spiral frame and the outer wall of the bottom end of the L-shaped pressure rod.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The L-shaped pressure bar is raised and lowered by the extension and retraction of the hydraulic cylinder. After being lowered, the L-shaped pressure bar can use rubber pads to press and fix the edge of the automotive parts on the worktable, thereby fixing the automotive parts during punching and improving the punching accuracy. In addition, the L-shaped pressure bar can be moved laterally by the extension and retraction of the cylinder. After being moved laterally and lowered, the L-shaped pressure bar can press and fix the edge of automotive parts of different sizes and specifications. It has a wide range of applications and is convenient for management.

[0016] 2. By setting the limiting notch, the workers can push the debris generated by punching the top of the workbench into the collection box through the limiting notch, so as to quickly clean the top of the workbench. It also facilitates the subsequent centralized removal of the collected debris. Under the elastic force of the spring in the elastic mechanism, the collection box can always be pressed against the bottom of the workbench, so that the debris on the top of the workbench can be pushed into the collection box. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram showing the connection between the L-shaped pressure bar and the collection box of this utility model;

[0019] Figure 3 This is a utility model Figure 1 Enlarged view of the A-structure;

[0020] Figure 4 This is a utility model Figure 1 Enlarged view of the B-structure.

[0021] In the diagram: 1. Workbench; 11. Base plate; 12. Limiting notch; 2. Fixing frame; 21. Hydraulic cylinder; 22. Mounting base; 23. Punching head; 3. Electric push rod; 31. Retractable frame; 32. Slider; 33. L-shaped pressure rod; 34. Rubber pad; 4. Collection box; 41. Spring; 42. Connecting plate; 43. Material pick-up baffle; 5. Cylinder. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0023] Example

[0024] like Figure 1-4 As shown, a punching device for automotive parts includes a worktable 1, a punching mechanism, and a fixing mechanism. The worktable 1 includes a table plate and several legs fixedly disposed at the bottom edge of the table plate.

[0025] like Figure 1 As shown, the punching mechanism is installed on the top of the workbench 1. The punching mechanism includes a fixed frame 2 fixedly installed at the top edge of the workbench 1, a hydraulic cylinder 21 fixedly installed on the top inner side of the fixed frame 2, a mounting base 22 fixedly installed at the bottom of the hydraulic cylinder 21, and a punching head 23 fixedly installed at the bottom of the mounting base 22. The fixed frame 2 can connect the workbench 1 and the hydraulic cylinder 21, and the mounting base 22 can connect the hydraulic cylinder 21 and the punching head 23. After the hydraulic cylinder 21 extends and retracts, it will drive the punching head 23 to rise and fall. After the punching head 23 descends, it can punch the automotive parts on the top of the workbench 1.

[0026] like Figure 1 , Figure 3 and Figure 4As shown, the fixing mechanism is installed inside the workbench 1 and is used to press and fix the automotive parts. The fixing mechanism includes an electric push rod 3 at the bottom of the workbench 1, a circular frame 31 fixed at the top of the electric push rod 3, a slider 32 slidably mounted at the top of the circular frame 31, and an L-shaped pressure rod 33 fixed at the top of the slider 32 and used to press and fix the automotive parts on the top of the workbench 1 downward. The top of the workbench 1 has a limiting notch 12 for the L-shaped pressure rod 33 to pass through. The workbench 1 can limit the top of the L-shaped pressure rod 33 through the limiting notch 12. The slider 32 can move laterally at the top of the circular frame 31, thereby adjusting the position of the L-shaped pressure rod 33.

[0027] like Figure 1 , Figure 3 and Figure 4 As shown, a cylinder 5 for driving the L-shaped pressure rod 33 to move laterally is fixedly installed between the top of one end of the circular frame 31 and the outer wall of the bottom end of the L-shaped pressure rod 33. A vertical plate is fixedly provided on the top of one end of the circular frame 31. The cylinder 5 is installed between the vertical plate and the L-shaped pressure rod 33. The extension and retraction of the cylinder 5 can drive the L-shaped pressure rod 33 and the slider 32 to slide laterally.

[0028] like Figure 1 , Figure 3 and Figure 4 As shown, a base plate 11 is fixed between the bottom of the legs of the workbench 1. The electric push rod 3 is fixedly installed on the top of the base plate 11. A rubber pad 34 for pressing against the top of the automotive parts is fixed on the inner top of the L-shaped pressure rod 33. The base plate 11 can connect the workbench 1 and the electric push rod 3. The rubber pad 34 can buffer and protect the automotive parts when the L-shaped pressure rod 33 presses down on them, so that the L-shaped pressure rod 33 is not easy to damage the outer surface of the automotive parts.

[0029] The extension and retraction of the electric push rod 3 can drive the L-shaped pressure rod 33 to rise and fall. After the extension and retraction of the cylinder 5, the L-shaped pressure rod 33 can move laterally under the sliding connection between the return frame 31 and the slider 32. After moving laterally and falling, the L-shaped pressure rod 33 can use the rubber pad 34 to press and fix the edge part of the corresponding size and specification of the car parts on the worktable 1, thereby fixing the car parts during punching to prevent the car parts from shifting during punching, thereby improving the punching accuracy.

[0030] like Figure 1-3As shown, the outer side of the L-shaped pressure rod 33 is provided with a collection box 4 that abuts against the bottom of the workbench 1. The bottom end of the L-shaped pressure rod 33 passes through and extends to the outside of the collection box 4. The L-shaped pressure rod 33 can limit the collection box 4 through the through part at the bottom end, so that the collection box 4 can only move up and down. The L-shaped pressure rod 33 can move up and down inside the collection box 4. The workers can push the debris generated by punching the top of the workbench 1 into the collection box 4 through the limiting notch 12 to quickly clean the top of the workbench 1, and also facilitate the subsequent centralized removal of the debris collected in the collection box 4.

[0031] like Figure 1-3 As shown, the workbench 1 is equipped with an elastic mechanism for applying damping to the sliding L-shaped pressure rod 33. The elastic mechanism includes a connecting plate 42 fixed to the outer wall of the bottom end of the L-shaped pressure rod 33, and a spring 41 fixed to the top of the connecting plate 42 for pushing the collection box 4 upward. The connecting plate 42 can connect the L-shaped pressure rod 33 and the spring 41. The spring 41 can provide elastic support for the collection box 4 and press the collection box 4 against the bottom of the workbench 1 under its own elastic force. When it is necessary to move the L-shaped pressure rod 33 laterally, the electric push rod 3 can be shortened to drive the L-shaped pressure rod 33 and the spring 41 to move downward, thereby reducing the force of the spring 41 pressing the collection box 4 against the bottom of the workbench 1. Then, the telescopic cylinder 5 pushes the L-shaped pressure rod 33 to move, thereby reducing the damping of the L-shaped pressure rod 33 when moving laterally and facilitating movement.

[0032] like Figure 1-2 As shown, a material extraction baffle 43 is detachably installed inside the material extraction port at the bottom of one side of the collection box 4. The material extraction baffle 43 can be detached and installed inside the collection box 4 by means of bolt connection or buckle connection, so that the material extraction baffle 43 can be opened later to collect the debris collected in the collection box 4 through the material extraction port.

[0033] It should be noted that, in use, the automotive parts punching device first places the automotive parts on the top of the workbench 1 and positions them below the punching head 23. Then, the cylinder 5 is controlled to extend and retract, which drives the L-shaped pressure rod 33 to move laterally under the sliding connection between the return frame 31 and the slider 32. The electric push rod 3 is then controlled to shorten, which drives the L-shaped pressure rod 33 to descend. After the L-shaped pressure rod 33 has moved laterally and descended, it can use the rubber pad 34 to press and fix the edge of the automotive parts of the corresponding size and specifications onto the workbench 1. Then, the hydraulic cylinder 21 is controlled to extend and retract, which drives the punching head 23 to rise and fall. After the punching head 23 descends, it can punch the automotive parts on the top of the workbench 1.

[0034] Furthermore, the staff can push the debris generated by punching the top of the workbench 1 into the collection box 4 through the limiting notch 12 to quickly clean the top of the workbench 1, and it is also convenient to collect and remove the debris in the collection box 4 later.

[0035] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. An automobile parts punching device, comprising a workbench (1), a punching mechanism installed on the top of the workbench (1), and a fixing mechanism installed in the workbench (1) and used for pressing and fixing automobile parts, characterized in that: the fixing mechanism comprises an electric push rod (3) arranged at the bottom of the workbench (1), a back-shaped frame (31) fixedly arranged at the top end of the electric push rod (3), a sliding block (32) slidingly arranged at the top end of the back-shaped frame (31), and an L-shaped pressing rod (33) fixedly arranged at the top end of the sliding block (32) and used for pressing and fixing automobile parts on the top of the workbench (1) downward, wherein a limiting gap (12) is arranged on the top of the workbench (1) for the L-shaped pressing rod (33) to pass through, and an elastic mechanism is arranged in the workbench (1) and used for applying damping to the sliding L-shaped pressing rod (33).

2. A punch device for automobile parts as claimed in claim 1, wherein: the punching mechanism comprises a fixed frame (2) fixedly arranged at the edge of the top of the workbench (1), a hydraulic cylinder (21) fixedly installed on the top of the inner side of the fixed frame (2), a mounting seat (22) fixedly arranged at the bottom end of the hydraulic cylinder (21), and a punching head (23) fixedly installed on the bottom of the mounting seat (22).

3. The punch device for automobile parts according to claim 1, characterized in that: bottoms of the legs of the workbench (1) is fixedly arranged a bottom plate (11), and the electric push rod (3) is fixedly installed on the top of the bottom plate (11).

4. The punch device for automobile parts according to claim 1, characterized in that: An collecting box (4) is arranged on the outside of the L-shaped pressing rod (33) and abuts against the bottom of the workbench (1), and the bottom end of the L-shaped pressing rod (33) penetrates and extends to the outside of the collecting box (4).

5. A punch device for automotive parts as claimed in claim 4, wherein: The elastic mechanism comprises a connecting plate (42) fixedly arranged on the outer wall of the bottom end of the L-shaped pressing rod (33), and a spring (41) fixedly arranged on the top of the connecting plate (42) and used for pushing the collecting box (4) upward.

6. A punch device for automotive parts as claimed in claim 5 wherein: A removable material taking baffle (43) is arranged in the material taking opening arranged on one side and the bottom of the collecting box (4), and a rubber pad (34) is fixedly arranged on the inner top of the L-shaped pressing rod (33) and used for abutting against the top of the automobile parts.

7. The punch device for automobile parts according to claim 1, characterized in that: A gas cylinder (5) is fixedly installed between the top of one end of the back-shaped frame (31) and the outer wall of the bottom end of the L-shaped pressing rod (33) and used for driving the L-shaped pressing rod (33) to move horizontally.