High-efficiency punching die for automobile wheel cover
By designing a positioning support module and an adjustable blanking module for the automotive wheel cover punching die, the problems of difficulty in quickly changing hole shapes and clogging in existing dies have been solved, achieving rapid positioning, fastening, and efficient punching.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN XINJIE AUTOPARTS CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-07-14
AI Technical Summary
Existing automotive wheel arch punching dies are difficult to change quickly to punch holes of different shapes or sizes, and sheet material clogging is prone to occur during the punching process.
A high-efficiency punching die was designed, comprising a positioning support module, an adjustable blanking module, and an adjustable upper die. The wheel cover is secured by a negative pressure adsorption module, the adjustable upper die is driven by a hydraulic cylinder to cooperate with the lower die for punching, and the sheet material is accelerated to fall by a positive pressure module to avoid blockage.
It enables rapid positioning and fastening of the wheel cover, allows for adjustment of punching size as needed, expands the applicability of the mold, ensures punching efficiency, and avoids sheet material blockage.
Smart Images

Figure CN224487351U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of punching die technology, specifically to a high-efficiency punching die for automobile wheel covers. Background Technology
[0002] After the car wheel cover is punched and shaped, mounting holes need to be punched on the skirt of the wheel cover for subsequent installation. This process is usually carried out by a punching machine equipped with corresponding molds.
[0003] For example, Chinese patent CN219851667U discloses a punching fixture for automotive wheel hub covers. When in use, the hydraulic cylinder drives the pressure block to move downward. The first contact plate and the second contact plate contact the wheel hub cover and push the connecting block to cause the spring to undergo elastic deformation, so that the first and second contact plates fit the wheel hub cover better, making the clamping more stable and ensuring the punching accuracy.
[0004] However, this tooling is difficult to change the size of the punch and is difficult to quickly replace in order to punch holes of different shapes or sizes; and during the punching process, the mounting hole at the lower end is consistent with the punch rod, which makes the round pieces produced by punching easily stuck in the blanking hole.
[0005] Based on this, this utility model designs a high-efficiency punching die for automobile wheel covers to solve the above problems. Utility Model Content
[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a high-efficiency punching die for automobile wheel covers.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A high-efficiency punching die for automobile wheel covers includes a positioning support module, an adjustable blanking module, and an adjustable upper die;
[0009] The positioning support module includes a support module for conformal support of the wheel cover and a negative pressure adsorption module. The support module is equipped with a negative pressure adsorption module for fixing the wheel cover.
[0010] An adjustable upper die is installed at the output end of the external hydraulic cylinder to cooperate with the adjustable blanking module for punching; adjustable blanking modules are symmetrically installed on the support module;
[0011] The adjustable blanking module includes an adjustable lower die and a positive pressure module, which are mounted on a support module.
[0012] Furthermore, the support module includes a lower mold base, a main body conformal support platform, and a skirt support platform. The main body conformal support platform for supporting the wheel cover is fixedly installed on the lower mold base, and the skirt support platforms for supporting and positioning the skirt are symmetrically installed on both sides of the main body conformal support platform.
[0013] Furthermore, the adjustable upper die includes an upper die fixing frame, a support shaft, a rotating block, and punch rods. The upper die fixing frame is fixedly connected to the output end of an external hydraulic cylinder. The support shaft is fixedly installed on the upper die fixing frame. The rotating block is rotatably installed on the support shaft. Multiple punch rods are fixedly installed on the side wall of the rotating block.
[0014] Furthermore, the rotating block is configured as a cube, and the center of the rotating block is rotatably connected to the support shaft.
[0015] Furthermore, threaded holes are symmetrically provided on the rotating block and the upper mold fixing frame respectively; the threaded holes on the rotating block are aligned with the threaded holes on the upper mold fixing frame; bolts are used to fix the rotating block and the upper mold fixing frame through the threaded holes.
[0016] Furthermore, the adjustable lower mold includes an installation block and an insert block. The insert block is fixedly installed on the lower side of the installation block, and a conformal installation groove and a slot are provided on the skirt support platform. The insert block is inserted into the slot, and the installation block is inserted into the conformal installation groove.
[0017] Furthermore, the mounting block has four punched blanking slots of different sizes arranged in a circular array, and the insert block has a through blanking slot; the bottom of the four punched blanking slots are all connected to the blanking slot.
[0018] Furthermore, the positive pressure module includes a nozzle, which is fixedly installed on the side of the skirt support platform and connected to an external air pump; a positive pressure channel is provided on the skirt support platform; four connecting slots are arranged in a circumferential array on the side of the mounting block, each connected to a different punching and blanking slot; one end of the positive pressure channel is connected to the nozzle, and the other end of the positive pressure channel is aligned with the connecting slot.
[0019] Compared with the prior art, the advantages of this utility model are as follows: Adjustable upper and lower dies are operated according to the required punching size, allowing them to cooperate in punching holes of different sizes; this expands the applicability of the die; the wheel cover is placed on the support module, which provides conformal positioning, and then the negative pressure adsorption module secures the wheel cover, preventing displacement; this achieves rapid positioning and securing of the wheel cover, ensuring punching efficiency; an external hydraulic cylinder drives the adjustable upper die downwards, allowing it to cooperate with the adjustable lower die to punch the wheel cover; the sheet material produced after punching falls into the adjustable lower die, and the positive pressure module accelerates its descent; during high-speed punching, the sheet material produced after punching is prevented from clogging the adjustable lower die. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This utility model relates to a three-dimensional high-efficiency punching die for automobile wheel covers. Figure 1 ;
[0022] Figure 2 This is a front view of a high-efficiency punching die for an automobile wheel cover according to the present invention;
[0023] Figure 3 For along Figure 2 A three-dimensional view after part of the structure has been removed along the AA direction;
[0024] Figure 4 This is a schematic diagram of the punch and its connecting structure;
[0025] Figure 5 for Figure 3 Enlarged view of point B in the middle.
[0026] The labels in the diagram represent:
[0027] 1. Positioning support module; 11. Lower mold base; 12. Main body conformal support platform; 13. Skirt support platform; 14. Negative pressure suction nozzle; 15. Negative pressure suction hole; 2. Adjustable upper mold; 21. Upper mold fixing frame; 22. Support shaft; 23. Rotating block; 24. Punch rod; 25. Threaded hole; 3. Adjustable blanking module; 31. Adjustable lower mold; 311. Mounting block; 312. Insert block; 313. Conformal mounting groove; 314. Slot; 315. Punching blanking groove; 316. Blanking groove; 32. Positive pressure module; 321. Nozzle; 322. Positive pressure channel; 323. Connecting groove; 4. Wheel cover; 41. Skirt. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0029] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.
[0030] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-3 A high-efficiency punching die for automobile wheel covers includes a positioning support module 1; it also includes an adjustable blanking module 3 and an adjustable upper die 2;
[0031] like Figure 2 As shown, the positioning support module 1 includes a support module for conformal support of the wheel cover 4 and a negative pressure adsorption module. The support module is equipped with a negative pressure adsorption module for fixing the wheel cover 4.
[0032] An adjustable upper die 2 is installed at the output end of the external hydraulic cylinder to cooperate with the adjustable blanking module 3 for punching; the adjustable blanking module 3 is symmetrically installed on the support module;
[0033] like Figure 3 As shown, the adjustable blanking module 3 includes an adjustable lower die 31 and a positive pressure module 32, which are mounted on the support module.
[0034] In this embodiment, when the high-efficiency punching die for the car wheel cover is working normally, the adjustable upper die 2 and the adjustable lower die 31 are operated according to the required punching size, so that the adjustable upper die 2 and the adjustable lower die 31 can cooperate to punch holes of different sizes; thus improving the applicability of the die; the wheel cover 4 is placed on the support module, and the support module performs conformal positioning of the wheel cover 4, and then the negative pressure adsorption module is used to fasten the wheel cover 4 to prevent the wheel cover 4 from shifting; thereby achieving rapid positioning and fastening of the wheel cover 4 and ensuring punching efficiency; the external hydraulic cylinder drives the adjustable upper die 2 to press down, so that the adjustable upper die 2 cooperates with the adjustable lower die 31 to punch the wheel cover 4; the sheet material generated after punching falls into the adjustable lower die 31, and the positive pressure module 32 accelerates the falling of the sheet material generated after punching; during high-speed punching, the sheet material generated after punching is prevented from clogging in the adjustable lower die 31.
[0035] Example 2: In some embodiments, as a preferred embodiment of the present invention, such as... Figure 2 As shown, the support module includes a lower mold base 11, a main body conformal support platform 12, and a skirt support platform 13. The main body conformal support platform 12 for supporting the wheel cover 4 is fixedly installed on the lower mold base 11, and the skirt support platform 13 for supporting and positioning the skirt 41 is symmetrically installed on both sides of the main body conformal support platform 12.
[0036] The negative pressure adsorption module includes a negative pressure suction nozzle 14. Multiple negative pressure suction nozzles 14 are fixedly installed on the skirt support platform 13 and are connected to an external vacuum pump. Multiple negative pressure suction holes 15 are opened on the main body conformal support platform 12 and the skirt support platform 13. Negative pressure channels are provided in the main body conformal support platform 12 and the skirt support platform 13, and the negative pressure suction holes 15 are connected to the negative pressure suction nozzles 14 through the negative pressure channels in the main body conformal support platform 12 and the skirt support platform 13.
[0037] like Figure 4 As shown, the adjustable upper mold 2 includes an upper mold fixing frame 21, a support shaft 22, a rotating block 23, and punch rods 24. The upper mold fixing frame 21 is fixedly connected to the output end of an external hydraulic cylinder. The support shaft 22 is fixedly installed on the upper mold fixing frame 21. The rotating block 23 is rotatably installed on the support shaft 22. Multiple punch rods 24 are fixedly installed on the side wall of the rotating block 23. The rotating block 23 is set as a cube, and the center of the rotating block 23 is rotatably connected to the support shaft 22. Threaded holes 25 are symmetrically opened on the rotating block 23 and the upper mold fixing frame 21. The threaded holes 25 on the rotating block 23 are aligned with the threaded holes 25 on the upper mold fixing frame 21. Bolts fix the rotating block 23 and the upper mold fixing frame 21 through the threaded holes 25.
[0038] like Figure 5 As shown, the adjustable lower mold 31 includes a mounting block 311 and an insert block 312. The insert block 312 is fixedly mounted on the lower side of the mounting block 311. The skirt support platform 13 is provided with a conformal mounting groove 313 and a slot 314. The insert block 312 is inserted into the slot 314, and the mounting block 311 is inserted into the conformal mounting groove 313.
[0039] The mounting block 311 has four punched material discharge slots 315 of different sizes arranged in a circumferential array, and the insert block 312 has a through material discharge slot 316; the bottom of the four punched material discharge slots 315 are all connected to the material discharge slot 316.
[0040] The positive pressure module 32 includes a nozzle 321, which is fixedly installed on the side of the skirt support platform 13 and is connected to an external air pump. A positive pressure channel 322 is provided on the skirt support platform 13. The side of the mounting block 311 is provided with four connecting slots 323 arranged in a circumferential array, which are respectively connected to different punching and blanking slots 315. One end of the positive pressure channel 322 is connected to the nozzle 321, and the other end of the positive pressure channel 322 is aligned with the connecting slot 323.
[0041] In this embodiment, when the positioning support module 1, the adjustable upper mold 2, and the adjustable blanking module 3 are working normally, the mounting block 311 and the insert block 312 are removed from the conformal mounting groove 313 and the slot 314. The orientation of the mounting block 311 and the insert block 312 is adjusted so that the connecting groove 323 on the side of the required punching blanking groove 315 is aligned with the positive pressure channel 322. Then, the mounting block 311 and the insert block 312 are inserted into the conformal mounting groove 313 and the slot 314. At this time, the positive pressure channel 322 is aligned with the connecting groove 323. This allows for the adjustment of the corresponding punching blanking groove 315 during punching; the bolt in the threaded hole 25 is removed, and then the rotating block 23 is operated to lower the required punch rod 24 on the side wall of the rotating block 23; then the upper mold fixing frame 21 and the rotating block 23 are fixed by the bolt and the threaded hole 25, thereby completing the conversion and adjustment of punch rods 24 of different sizes; thus enabling the rapid replacement of punch rods 24 and matching punching blanking grooves 315 according to the required punching size; ensuring punching quality and improving the applicability of the mold;
[0042] The wheel cover 4 is placed on the main body conformal support platform 12 and the skirt support platform 13. The main body conformal support platform 12 and the skirt support platform 13 quickly conformally position the wheel cover 4 and the skirt 41. Then, the external vacuum pump uses the negative pressure suction nozzle 14 and the negative pressure suction hole 15 to tighten the wheel cover 4, thus securing the wheel cover 4. During punching, the external hydraulic cylinder drives the upper die fixing frame 21, the support shaft 22, the rotating block 23 and the corresponding punch rod 24 to move downwards, so that the corresponding punch rod 24 is positioned on the wheel cover. 4. After punching, the sheet material generated by punching is inserted into the punching discharge groove 315 on the lower side; then, the external hydraulic cylinder drives the upper mold fixing frame 21, support shaft 22, rotating block 23 and punch rod 24 to reset. At the same time, the external air pump blows air into the corresponding connecting groove 323 through the nozzle 321 and positive pressure channel 322, thereby blowing air into the punching discharge groove 315 through the connecting groove 323, so that the sheet material generated by punching falls quickly from the punching discharge groove 315 and the discharge groove 316; to avoid blockage.
[0043] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A high-efficiency punching die for automobile wheel covers, comprising a positioning support module (1), characterized in that: It also includes an adjustable blanking module (3) and an adjustable upper die (2); The positioning support module (1) includes a support module for conformal support of the wheel cover (4) and a negative pressure adsorption module. The support module is equipped with a negative pressure adsorption module for fixing the wheel cover (4). An adjustable upper die (2) for punching holes in conjunction with the adjustable blanking module (3) is installed at the output end of the external hydraulic cylinder; the adjustable blanking module (3) is symmetrically installed on the support module; The adjustable blanking module (3) includes an adjustable lower die (31) and a positive pressure module (32), which are mounted on the support module.
2. The high-efficiency punching die for automobile wheel covers according to claim 1, characterized in that, The support module includes a lower mold base (11), a main body conformal support platform (12), and a skirt support platform (13). The lower mold base (11) is fixedly installed with a main body conformal support platform (12) for supporting the wheel cover (4). The main body conformal support platform (12) is symmetrically fixedly installed on both sides of the main body conformal support platform (12) with skirt support platforms (13) for supporting and positioning the skirt (41).
3. The high-efficiency punching die for automobile wheel covers according to claim 2, characterized in that, The adjustable upper mold (2) includes an upper mold fixing frame (21), a support shaft (22), a rotating block (23), and punches (24). The upper mold fixing frame (21) is fixedly connected to the output end of an external hydraulic cylinder. The support shaft (22) is fixedly installed on the upper mold fixing frame (21). The rotating block (23) is rotatably installed on the support shaft (22). Multiple punches (24) are fixedly installed on the side wall of the rotating block (23).
4. The high-efficiency punching die for automobile wheel covers according to claim 3, characterized in that, The rotating block (23) is set as a cube, and the center of the rotating block (23) is rotatably connected to the support shaft (22).
5. The high-efficiency punching die for automobile wheel covers according to claim 4, characterized in that, The rotating block (23) and the upper mold fixing frame (21) are respectively provided with threaded holes (25); the threaded holes (25) on the rotating block (23) are aligned with the threaded holes (25) on the upper mold fixing frame (21); the bolts fix the rotating block (23) and the upper mold fixing frame (21) through the threaded holes (25).
6. The high-efficiency punching die for automobile wheel covers according to claim 5, characterized in that, The adjustable lower mold (31) includes a mounting block (311) and an insert block (312). The insert block (312) is fixedly installed on the lower side of the mounting block (311). The skirt support platform (13) is provided with a conformal mounting groove (313) and a slot (314). The insert block (312) is inserted into the slot (314), and the mounting block (311) is inserted into the conformal mounting groove (313).
7. The high-efficiency punching die for automobile wheel covers according to claim 6, characterized in that, The mounting block (311) has four punching and blanking slots (315) of different sizes arranged in a circular array, and the insert block (312) has a through-hole blanking slot (316); the bottom of the four punching and blanking slots (315) are all connected to the blanking slot (316).
8. The high-efficiency punching die for automobile wheel covers according to claim 7, characterized in that, The positive pressure module (32) includes a nozzle (321), which is fixedly installed on the side of the skirt support platform (13) and is connected to an external air pump. A positive pressure channel (322) is provided on the skirt support platform (13). The side of the mounting block (311) is provided with four connecting slots (323) that are connected to different punching and blanking slots (315) in a circumferential array. One end of the positive pressure channel (322) is connected to the nozzle (321), and the other end of the positive pressure channel (322) is aligned with the connecting slot (323).