Punching die for splash-proof pad of automobile

Abstract

The utility model relates to the technical field of punching dies, and discloses an automobile splash-proof pad punching die which comprises a base, feeding rollers used for conveying splash-proof pads are rotationally connected to the two sides in the base, a punching table is fixedly installed on the inner bottom wall of the base, and transverse plates are fixedly connected to the two sides of the top in the base. Pressing assemblies used for pressing the splash-proof pad are arranged at the four corners of the upper end face of the base, a punching assembly used for punching the splash-proof pad is arranged on the upper end face of the base, and when pressing operation needs to be conducted, a piston of a first air cylinder is controlled to stretch out downwards, a lifting frame is pushed to move downwards, and the lifting frame drives a mounting frame and a pressing roller to move downwards together; and at the moment that the pressing roller makes contact with the surface of the splash-proof pad, due to the counter-acting force of an object, the mounting frame slides upwards relative to the lifting frame and compresses the buffer spring, compression of the buffer spring can buffer part of impact force, the pressing process is softer, and the surface of the splash-proof pad is prevented from being damaged.

Description

Technical Field

[0001] This utility model relates to the field of punching die technology, specifically to a punching die for an automotive splash guard. Background Technology

[0002] Car splash guards are mainly used to protect car paint: preventing stones, mud, and other debris splashed up during driving from directly impacting the car body, avoiding scratches and wear on the paint, reducing the risk of rust, and to a certain extent blocking the noise generated by the collision of mud, water, stones, etc., kicked up by the wheels with the car body, improving the quietness of the car interior. During the production process of car splash guards, a punching die is used to make the splash guard into a suitable shape. During the punching process, a pressing component is generally used to fix the splash guard in place, thereby preventing the splash guard from shifting during processing.

[0003] Existing devices have some drawbacks during use. For example, traditional pressing methods often lack an effective buffering mechanism when controlling the pressing component to contact the target object (such as a splash pad). When the pressing component (such as a rigid pressure head) directly contacts the surface of the splash pad, a large impact force is generated. This instantaneous high-intensity impact force can easily damage the surface of the splash pad, such as causing indentations, dents, or even cracks, which seriously affects the appearance quality and performance of the splash pad. Utility Model Content

[0004] The purpose of this utility model is to provide a punching die for automotive splash guards, which solves the problem that when the pressing part directly contacts the surface of the splash guard, a large impact force is generated, which easily damages the surface of the splash guard.

[0005] This utility model provides the following technical solution: a punching die for an automotive splash guard, comprising a base, feeding rollers for conveying the splash guard are rotatably connected to both sides inside the base, a punching table is fixedly installed on the bottom wall inside the base, and horizontal plates are fixedly connected to both sides of the top inside the base. Pressing components for pressing the splash guard are provided at the four corners of the upper surface of the base. The pressing components are used in conjunction with the horizontal plates, and a punching component for punching the splash guard is provided on the upper surface of the base.

[0006] As a preferred embodiment of the above technical solution, the pressing assembly includes a mounting bracket fixedly installed on the upper surface of the base. A first cylinder is fixedly installed on the upper surface of the mounting bracket. The piston end of the first cylinder is vertically downward and a lifting frame is fixedly installed at its end. Limiting grooves are formed on the inner walls of the opposite sides of the lifting frame. Limiting sliders are slidably connected in the limiting grooves. A mounting frame is fixedly connected between the two limiting sliders. A pressing roller is rotatably connected to the inner side of the mounting frame. Buffer springs are directly provided on the upper surface of the mounting frame and the inner top wall of the lifting frame.

[0007] As a preferred embodiment of the above technical solution, the punching assembly includes four support legs fixedly installed on the upper surface of the base. A top plate is fixedly connected to the top of the four support legs. A second cylinder is fixedly installed at the center of the upper surface of the top plate. The piston end of the second cylinder is vertically downward and a lifting plate is fixedly installed at its end. Fixed columns are fixedly installed on both sides of the lower surface of the lifting plate. A connecting plate is fixedly connected to the bottom of the two fixed columns. A punching blade is fixedly installed on the lower surface of the connecting plate.

[0008] As a preferred embodiment of the above technical solution, the four corners of the lifting plate are slidably connected to the outer wall of the support leg.

[0009] As a preferred embodiment of the above technical solution, limit slide rods are fixedly connected to the four corners of the upper surface of the mounting frame. All four limit slide rods pass vertically upward through the lifting frame and are slidably connected to the lifting frame. Anti-detachment blocks are fixedly connected to the top of each of the four limit slide rods, and buffer springs are wound around the outer wall of the corresponding limit slide rod.

[0010] As a preferred embodiment of the above technical solution, a storage frame for storing splash-proof pads is placed on the inner bottom wall of the base.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this invention, when a pressing operation is required, the piston of the first cylinder extends downward, pushing the lifting frame downward. The lifting frame drives the mounting frame and the pressing roller to move downward together until the pressing roller contacts the splash pad. At the instant the pressing roller contacts the surface of the splash pad, due to the reaction force of the object, the mounting frame slides upward relative to the lifting frame, compressing the buffer spring. The compression of the buffer spring can buffer some of the impact force, making the pressing process gentler and preventing damage to the surface of the splash pad. The rolling pressing method of the pressing roller can also reduce friction and damage to the surface of the splash pad. Attached Figure Description

[0013] Figure 1 A three-dimensional structural diagram of a stamping die for an automotive splash guard;

[0014] Figure 2 A three-dimensional cross-sectional view of a stamping die for an automotive splash guard;

[0015] Figure 3 This is an enlarged structural diagram of the pressing component;

[0016] Figure 4 This is a cross-sectional view of the pressing component.

[0017] In the diagram: 1. Base; 11. Feeding roller; 12. Punching table; 13. Horizontal plate; 14. Storage box; 2. Pressing assembly; 21. Mounting frame; 22. First cylinder; 23. Lifting frame; 24. Limiting slide groove; 25. Limiting slider; 26. Mounting frame; 27. Pressing roller; 28. Buffer spring; 3. Punching assembly; 31. Support leg; 32. Top plate; 33. Second cylinder; 34. Lifting plate; 35. Fixed column; 36. Connecting plate; 37. Punching blade; 41. Limiting slide bar; 42. Anti-detachment block. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Example

[0019] like Figures 1-4 As shown, this utility model provides a technical solution: a punching die for an automotive splash guard, including a base 1. Feeding rollers 11 for conveying splash guards are rotatably connected to both sides inside the base 1. A punching table 12 is fixedly installed on the bottom wall inside the base 1. Horizontal plates 13 are fixedly connected to both sides of the top inside the base 1. Pressing components 2 for pressing the splash guards are provided at the four corners of the upper surface of the base 1. The pressing components 2 are used in conjunction with the horizontal plates 13. A punching component 3 for punching the splash guards is provided on the upper surface of the base 1. In specific use, the feeding rollers 11 are driven by an external motor to accurately feed the splash guards above the punching table 12. The pressing components 2 automatically press down to fix the splash guards. The punching component 3 presses down to complete the punching action. The feeding rollers 11 continue to feed material and enter the next cycle.

[0020] As one implementation method in this embodiment, such as Figure 3 and Figure 4As shown, the pressing assembly 2 includes a mounting bracket 21 fixedly mounted on the upper surface of the base 1. A first cylinder 22 is fixedly mounted on the upper surface of the mounting bracket 21. The piston end of the first cylinder 22 is vertically downward and a lifting frame 23 is fixedly mounted on its end. Limiting grooves 24 are formed on the inner walls of opposite sides of the lifting frame 23. Limiting sliders 25 are slidably connected in the limiting grooves 24. A mounting frame 26 is fixedly connected between the two limiting sliders 25. A pressing roller 27 is rotatably connected inside the mounting frame 26. A buffer spring 28 is directly provided on the upper surface of the mounting frame 26 and the inner top wall of the lifting frame 23. In actual use, when no pressing operation is performed, the piston of the first cylinder 22 is in a contracted state, the lifting frame 23 is in a higher position, and the mounting frame 26 and the pressing roller 27 inside it are in a lower position. The buffer spring 28 is in a high position and naturally extended. When a pressing operation is required, the piston of the first cylinder 22 extends downward, pushing the lifting frame 23 downward. The lifting frame 23 drives the mounting frame 26 and the pressing roller 27 to move downward together until the pressing roller 27 contacts the splash pad (at this time, the splash pad is located between the pressing roller 27 and the horizontal plate 13). At the moment the pressing roller 27 contacts the surface of the splash pad, due to the reaction force of the object, the mounting frame 26 will slide upward relative to the lifting frame 23, compressing the buffer spring 28. The compression of the buffer spring 28 can buffer some of the impact force, making the pressing process gentler and avoiding damage to the surface of the splash pad. In addition, the rolling pressing method of the pressing roller 27 can reduce friction and damage to the surface of the splash pad.

[0021] As one implementation method in this embodiment, such as Figure 1 and Figure 2 As shown, the punching assembly 3 includes four support legs 31 fixedly installed on the upper surface of the base 1. A top plate 32 is fixedly connected to the top of the four support legs 31. A second cylinder 33 is fixedly installed at the center of the upper surface of the top plate 32. The piston end of the second cylinder 33 is vertically downward and a lifting plate 34 is fixedly installed at its end. Fixed columns 35 are fixedly installed on both sides of the lower surface of the lifting plate 34. A connecting plate 36 is fixedly connected to the bottom of the two fixed columns 35. A punching blade 37 is fixedly installed on the lower surface of the connecting plate 36. In actual use, by activating the second cylinder 33, the second cylinder 33 drives the fixed columns 35, the connecting plate 36 and the punching blade 37 on the lifting plate to move down synchronously, so that the punching blade 37 punches the splash pad on the punching table 12.

[0022] As one implementation method in this embodiment, such as Figure 1 As shown, the four corners of the lifting plate 34 are slidably connected to the outer wall of the support leg 31. The support leg 31 acts as a guide post, allowing the lifting plate 34 to slide smoothly on the outer wall of the support leg 31.

[0023] As one implementation method in this embodiment, such as Figure 4As shown, limit slide rods 41 are fixedly connected to the four corners of the upper surface of the mounting frame 26. All four limit slide rods 41 pass vertically upward through the lifting frame 23 and are slidably connected to the lifting frame 23. Anti-detachment blocks 42 are fixedly connected to the top of each of the four limit slide rods 41. Buffer springs 28 are wound around the outer wall of the corresponding limit slide rod 41. In actual use, the limit slide rods 41 pass vertically upward through the lifting frame 23 and are slidably connected to it. This design allows the lifting frame 23 to move up and down along the axis of the limit slide rods 41, restricting its horizontal freedom and thus ensuring the linearity of the lifting motion.

[0024] As one implementation method in this embodiment, such as Figure 2 As shown, a storage box 14 for storing splash pads is placed on the inner bottom wall of the base 1. After the punching is completed, the splash pads will be brought down from the punching table 12 during the conveying process, and the splash pads after punching will be collected by the storage box 14.

[0025] Working principle: In use, the feeding roller 11 is first driven by an external motor to transport the anti-splash pad to the punching table 12. The piston of the first cylinder 22 is controlled to extend downward, pushing the lifting frame 23 to move downward. The lifting frame 23 drives the mounting frame 26 and the pressing roller 27 to move downward together until the pressing roller 27 contacts the anti-splash pad (at this time, the anti-splash pad is located between the pressing roller 27 and the horizontal plate 13). Then, the second cylinder 33 is started, which drives the fixed column 35, the connecting plate 36 and the punching blade 37 on the lifting plate to move downward synchronously. This allows the punching blade 37 to punch the anti-splash pad on the punching table 12. After punching, the anti-splash pad will be carried down from the punching table 12 during the transport process. The punched anti-splash pad is collected by the storage box 14.

[0026] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A stamping die for an automotive splash guard, comprising a base (1), characterized in that: The base (1) has a feeding roller (11) for conveying the splash pad rotatably connected to both sides inside. A punching table (12) is fixedly installed on the bottom wall inside the base (1). A horizontal plate (13) is fixedly connected to both sides of the top inside the base (1). A pressing component (2) for pressing the splash pad is provided at each of the four corners of the upper surface of the base (1). The pressing component (2) is used in conjunction with the horizontal plate (13). A punching component (3) for punching the splash pad is provided on the upper surface of the base (1).

2. The automotive splash guard punching die according to claim 1, characterized in that: The pressing assembly (2) includes a mounting bracket (21) fixedly installed on the upper surface of the base (1). A first cylinder (22) is fixedly installed on the upper surface of the mounting bracket (21). The piston end of the first cylinder (22) is vertically downward and a lifting frame (23) is fixedly installed at the end. Limiting grooves (24) are opened on the inner walls of the opposite sides of the lifting frame (23). Limiting sliders (25) are slidably connected in the limiting grooves (24). A mounting frame (26) is fixedly connected between the two limiting sliders (25). A pressing roller (27) is rotatably connected inside the mounting frame (26). A buffer spring (28) is directly provided on the upper surface of the mounting frame (26) and the inner top wall of the lifting frame (23).

3. The automotive splash guard punching die according to claim 1, characterized in that: The punching assembly (3) includes four support legs (31) fixedly installed on the upper surface of the base (1). The top of the four support legs (31) is fixedly connected to a top plate (32). A second cylinder (33) is fixedly installed at the center of the upper surface of the top plate (32). The piston end of the second cylinder (33) is vertically downward and a lifting plate (34) is fixedly installed at the end. Fixed columns (35) are fixedly installed on both sides of the lower surface of the lifting plate (34). A connecting plate (36) is fixedly connected to the bottom of the two fixed columns (35). A punching blade (37) is fixedly installed on the lower surface of the connecting plate (36).

4. The automotive splash guard punching die according to claim 3, characterized in that: The four corners of the lifting plate (34) are slidably connected to the outer wall of the support leg (31).

5. The automotive splash guard punching die according to claim 2, characterized in that: Limiting slide rods (41) are fixedly connected at the four corners of the upper surface of the mounting frame (26). All four limiting slide rods (41) pass vertically upward through the lifting frame (23) and are slidably connected to the lifting frame (23). Anti-detachment blocks (42) are fixedly connected to the top of each of the four limiting slide rods (41). The buffer springs (28) are all wound around the outer wall of the corresponding limiting slide rods (41).

6. The automotive splash guard punching die according to claim 1, characterized in that: A storage box (14) for storing splash pads is placed on the inner bottom wall of the base (1).

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