A tooling for car rear cover
By designing movable support rods, rotating support rods, and a motor-driven worktable, the problems of defects and fit during the stamping process of automobile rear covers were solved, achieving efficient and stable inspection results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HONGDE AUTO PARTS (WUHAN) CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-30
Smart Images

Figure CN224425538U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tooling technology, and in particular to a tooling for an automobile rear cover. Background Technology
[0002] The trunk lid is an important component of the rear of a car, typically referring to the tailgate. Its main function is to seal and protect the trunk area, while also serving a decorative purpose in terms of appearance. During the stamping process, defects such as necking, cracking, and wrinkling may occur, affecting its structural strength and appearance quality. Furthermore, damage or aging of the sealing strips can lead to leaks, impacting the vehicle's comfort and usability.
[0003] In existing technologies, the position, angle, and height of the mounting holes for rear covers vary among different vehicle models. Fixed fixtures are difficult to adapt quickly and require frequent replacement or adjustment of the fixture structure, which reduces testing efficiency. Therefore, we propose an automotive rear cover fixture to solve the above problems. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a tooling for automobile rear covers.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A car rear cover fixture includes a base, a support frame fixedly connected to the top of the base, a motor fixedly connected inside the support frame, a worktable fixedly connected to the top of the motor output shaft, four strip-shaped grooves on the outer wall of the worktable, support rods slidably connected to the inner walls of the four strip-shaped grooves, end plates fixedly connected to the bottom of the four support rods, end seats threaded onto the outer walls of the four support rods, positioning pins fixedly connected to the top of the four support rods, locking caps threaded onto the outer walls of the four positioning pins, U-shaped parts slidably fitted onto the outer walls of the four positioning pins, round rods fixedly connected inside the four U-shaped parts, support rods rotatably fitted onto the outer walls of the four round rods, and positioning components on the top of the support rods.
[0007] Preferably, the positioning assembly includes four threaded connecting rods, each of the four supporting rods having a threaded hole at its top. The inner walls of the four threaded holes are threadedly connected to the outer walls of the four threaded connecting rods. Each of the four threaded connecting rods has a tapered positioning head fixedly connected to its top. One end of each of the four round rods is threaded with a fastening cap. The positioning assembly is used to position the car rear cover.
[0008] Preferably, the top of the support frame is provided with a slot, and the bottom of the end seat is pressed against the top of the workbench, so that the support rod is fixed in the strip groove by the end seat and the end plate.
[0009] Preferably, the bottoms of the four locking caps are pressed against the tops of the four U-shaped parts, and the U-shaped parts are fixed on the positioning posts by setting the locking caps.
[0010] Preferably, the outer wall of the U-shaped component has a through hole, and the inner wall of the through hole is slidably connected to the outer wall of the round rod.
[0011] Preferably, the outer walls of the four fastening caps are pressed against the outer walls of the four U-shaped parts respectively. The pressing force of the fastening caps is transmitted to the U-shaped parts, causing the opening of the U-shaped parts to deform and press against the outer wall of the support rod, thereby fixing the position of the support rod.
[0012] Compared with the prior art, the advantages of this utility model are:
[0013] This solution features a support rod that can move horizontally along the strip groove, a support rod that can be rotated to adjust its angle, and a threaded connecting rod that can be extended and retracted to adjust its height, allowing the conical positioning head to accurately fit the mounting holes of different back covers; quick assembly and disassembly; U-shaped parts are fixed by locking caps and can be flexibly added, removed, or replaced to adapt to the testing needs of different specifications of back covers; a motor-driven worktable rotation facilitates multi-angle testing, reduces manual flipping operations, improves efficiency, and avoids product damage; locking structures such as end seats, locking caps, and fastening caps ensure that each component is firmly fixed after adjustment, preventing displacement during testing. Attached Figure Description
[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments 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.
[0015] Figure 1 This is a three-dimensional structural diagram of a car rear cover tooling proposed in this utility model;
[0016] Figure 2 This is a cross-sectional structural diagram of a car rear cover tooling proposed in this utility model.
[0017] Figure 3 This utility model proposes a tooling for automotive rear cover. Figure 2 A magnified structural diagram of part A in the diagram.
[0018] In the diagram: 1. Base; 2. Support frame; 3. Motor; 4. Workbench; 5. Strip groove; 6. Support rod; 7. End plate; 8. End seat; 9. Positioning pin; 10. Locking cap; 11. U-shaped part; 12. Round rod; 13. Support rod; 14. Threaded connecting rod; 15. Conical positioning head; 16. Fastening cap. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0020] Depend on Figures 1-3 As shown, a tooling for an automobile rear cover is provided, including a base 1, a support frame 2 fixedly connected to the top of the base 1, a motor 3 fixedly connected inside the support frame 2, a worktable 4 fixedly connected to the top of the output shaft of the motor 3, the worktable 4 can rotate with the motor 3 to facilitate multi-angle inspection of the rear cover, and a slot is provided on the top of the support frame 2.
[0021] The outer wall of the workbench 4 has four strip grooves 5. The inner walls of the four strip grooves 5 are slidably connected to support rods 6. The bottom of the four support rods 6 is fixedly connected to end plates 7. The outer walls of the four support rods 6 are threaded with end seats 8. The bottom of the end seats 8 is pressed against the top of the workbench 4. The end plates 7 and end seats 8 cooperate to limit the support rods 6 and prevent the support rods 6 from coming out.
[0022] The support rod 6 can be locked or released by rotating it, allowing it to move along the strip groove 5 and adjust its horizontal position.
[0023] The top of each of the four support rods 6 is fixedly connected to a positioning post 9. The outer wall of each of the four positioning posts 9 is threaded with a locking cap 10. The outer wall of each of the four positioning posts 9 is slidably fitted with a U-shaped part 11. The bottom of each of the four locking caps 10 is pressed against the top of each of the four U-shaped parts 11. The locking caps 10 and the positioning posts 9 are used to fix the U-shaped parts 11.
[0024] Each of the four U-shaped parts 11 has a round rod 12 fixedly connected inside. The outer wall of the U-shaped part 11 has a through hole, and the inner wall of the through hole is slidably connected to the outer wall of the round rod 12. Each of the four round rods 12 has a support rod 13 rotatably sleeved on its outer wall. The support rod 13 rotates around the round rod 12, and after adjusting the angle, it is locked by a fastening cap 16 to ensure stability.
[0025] The top of the support rod 13 is provided with a positioning assembly, which includes four threaded connecting rods 14. Each of the four support rods 13 has a threaded hole at its top. The inner wall of each of the four threaded holes is threadedly connected to the outer wall of the four threaded connecting rods 14. The threaded connecting rods 14 and the threaded holes at the top of the support rods 13 are engaged to adjust the height to accommodate different mounting hole positions of the back cover. Each of the four threaded connecting rods 14 is fixedly connected to a conical positioning head 15. One end of each of the four round rods 12 is threaded with a fastening cap 16. The outer wall of each of the four fastening caps 16 is pressed against the outer wall of each of the four U-shaped parts 11.
[0026] Working principle: When tooling the car rear cover, the car rear cover is placed on four conical positioning heads 15. The four conical positioning heads 15 can be inserted into the mounting holes of the car rear cover to support it. Depending on the position and angle of the mounting holes, the four end seats 8 can be rotated to release the position fixation of the four support rods 6. The four support rods 6 move along the four strip grooves 5, changing the horizontal and rotational positions of the four conical positioning heads 15. Rotating the four fastening caps 16 releases the position fixation of the four support rods 13. The rod 13 rotates via the round rod 12, changing the vertical rotation position of the four conical positioning heads 15, allowing the four conical positioning heads 15 to change at multiple angles. The conical positioning heads 15 extend and retract via the threaded connecting rod 14, adjusting their height to support the car rear cover. Furthermore, the four locking caps 10 can be rotated to release the position fixation of the four U-shaped parts 11, allowing for the removal of some U-shaped parts 11 and the addition or reduction of the conical positioning heads 15. The motor 3 drives the worktable 4 to rotate with the car rear cover, facilitating the inspection of the car rear cover.
[0027] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. Furthermore, the structure and principle of the components known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods.
[0028] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A tooling for an automobile rear cover, comprising a base (1), characterized in that, The top of the base (1) is fixedly connected to a support frame (2), the inside of the support frame (2) is fixedly connected to a motor (3), the top of the output shaft of the motor (3) is fixedly connected to a worktable (4), the outer wall of the worktable (4) is provided with four strip grooves (5), the inner walls of the four strip grooves (5) are slidably connected to support rods (6), the bottom of the four support rods (6) is fixedly connected to an end plate (7), the outer walls of the four support rods (6) are threadedly fitted with an end seat (8), the top of the four support rods (6) is fixedly connected to a positioning post (9), the outer walls of the four positioning posts (9) are threadedly fitted with a locking cap (10), the outer walls of the four positioning posts (9) are slidably fitted with a U-shaped part (11), the inside of the four U-shaped parts (11) is fixedly connected to a round rod (12), the outer walls of the four round rods (12) are rotatably fitted with a support rod (13), and the top of the support rod (13) is provided with a positioning component.
2. The automotive rear cover tooling according to claim 1, characterized in that, The positioning assembly includes four threaded connecting rods (14), each of the four supporting rods (13) has a threaded hole at its top, the inner walls of the four threaded holes are threadedly connected to the outer walls of the four threaded connecting rods (14), each of the four threaded connecting rods (14) has a tapered positioning head (15) fixedly connected to its top, and one end of each of the four round rods (12) is threaded with a fastening cap (16).
3. The automotive rear cover tooling according to claim 1, characterized in that, The top of the support frame (2) is provided with a slot, and the bottom of the end seat (8) is pressed against the top of the worktable (4).
4. The automotive rear cover tooling according to claim 1, characterized in that, The bottoms of the four locking caps (10) are pressed against the tops of the four U-shaped pieces (11).
5. The automotive rear cover tooling according to claim 1, characterized in that, The outer wall of the U-shaped part (11) has a through hole, and the inner wall of the through hole is slidably connected to the outer wall of the round rod (12).
6. The automotive rear cover tooling according to claim 2, characterized in that, The outer walls of the four fastening caps (16) are pressed against the outer walls of the four U-shaped pieces (11).