Automobile rear cover coating spare part frame structure

By designing mounting blocks and elastic claws to support the back cover, the problems of paint scratches and high labor intensity during the painting process were solved. This enabled the back cover to be directly glued onto the spare parts frame, reducing costs and improving production efficiency.

CN223832753UActive Publication Date: 2026-01-27YIBIN COWIN AUTO CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202520198762.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-08
Publication Date
2026-01-27
Estimated Expiration
2035-02-08

AI Technical Summary

Technical Problem

In the current automotive rear cover painting process, the contact between the spring and the rear cover sheet metal during electrophoresis causes scratches on the paint film. Furthermore, the disassembly and installation processes involve high labor intensity and long working hours, posing safety risks and leading to production line shutdowns and low efficiency.

Method used

Design a car rear cover painting parts frame structure, using mounting blocks and elastic claws to support the rear cover, ensuring that the rear cover is consistent with the original body posture, avoiding contact between the spring and the rear cover, and enabling the rear cover to be directly glued on the parts frame through the design of mounting blocks and elastic claws, reducing the disassembly and handling process.

Benefits of technology

It solved the problem of paint scratches, reduced the amount of rework, reduced the labor intensity of personnel, lowered manufacturing costs, and improved production efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223832753U_ABST
    Figure CN223832753U_ABST
Patent Text Reader

Abstract

The utility model discloses an automobile rear cover coating spare part frame structure which comprises a base, a supporting frame is arranged on the base, a mounting shaft is arranged at the top of the supporting frame, mounting blocks are arranged at the two ends of the mounting shaft, and an elastic clamping jaw is arranged on the side portion of the supporting frame. The working intensity of personnel and the cost loss are reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology. Specifically, this utility model relates to a frame structure for automotive rear cover painting parts. Background Technology

[0002] To ensure the production of automotive rear cover aftermarket parts, the rear cover needs to be mounted on a spare parts frame for line crossing during the painting process. The existing spare parts frame in the painting workshop uses hooks and springs to fix the rear cover upside down. During the electrophoresis process, the contact between the springs and the sheet metal of the rear cover can easily cause scratches to the paint film. At the same time, after electrophoresis, the hooks and springs need to be removed to install the rear cover onto a special tool before the glue application can be carried out. The disassembly, transportation and installation process is labor-intensive and time-consuming, poses safety risks, causes production line downtime, low efficiency and significant cost losses.

[0003] Invention patent CN105521893A, published on April 27, 2014, discloses a car rear cover painting auxiliary tool, which consists of a positioning plate and a connecting rod. The positioning plate is provided with a positioning screw, and a positioning nut is installed on the positioning screw. One end of the connecting rod is connected to the positioning plate through an adjusting screw and an adjusting nut. This car rear cover painting auxiliary tool also fails to solve the aforementioned technical problem. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by providing a car rear cover painting component frame structure that reduces the amount of rework on the rear cover paint surface, lowers the labor intensity of personnel, and reduces cost losses.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] The automotive rear cover paint assembly frame structure includes a base, a support frame on the base, a mounting shaft on the top of the support frame, mounting blocks at both ends of the mounting shaft, and elastic claws on the side of the support frame.

[0007] The mounting block has a sleeve and a support at both ends. The sleeve is fitted onto the mounting shaft and has a fixing hole. The support has a connecting hole. The support frame has a bracket on its side. One end of the elastic claw is fitted onto the bracket and the other end has a hook.

[0008] The bracket has a U-shaped structure and is horizontally positioned; the support frame has strut mounting holes on the side of the bracket.

[0009] The support portion has a boss at its end, and the connecting hole passes through the boss.

[0010] The top of the support frame is also provided with a limiting block, which is located below the mounting block, and the top of the limiting block has a sloping structure.

[0011] The mounting block includes a first mounting block, a second mounting block, and a third mounting block, which are arranged sequentially. The elastic claw includes a first elastic claw and a second elastic claw, with the first elastic claw located above the second elastic claw.

[0012] The mounting block has an L-shaped structure, and reinforcing ribs are provided on both sides of the mounting block.

[0013] Support blocks are fixedly connected to both ends and the middle of the top of the support frame. The support blocks have a V-shaped structure. The mounting shaft is located in the middle of the support block. A limiting bolt is provided on the top of the support block. The limiting bolt is located above the mounting shaft.

[0014] The support frame is provided in six parts, located at the end and side of the base, and a connecting channel steel is provided between adjacent support frames.

[0015] The support frame is constructed by welding square tubing.

[0016] The technical advantages of this utility model are as follows: The automotive rear cover painting equipment frame structure of this utility model supports the rear cover by designing mounting blocks and elastic claws, so that the rear cover is basically consistent with the original body posture after being placed. This solves the problem of paint scratches caused by contact between the fixing spring and the rear cover, reduces the amount of rework, and allows the rear cover to be directly glued after being installed on the spare parts frame. At the same time, it solves the problem of manual handling required for subsequent rear cover glue application, reducing labor intensity and manufacturing costs. Attached Figure Description

[0017] This manual includes the following figures, which illustrate the following:

[0018] Figure 1 This is a structural schematic diagram of the automotive rear cover painting component frame structure of this utility model.

[0019] Figure 2 This is a schematic diagram of placing the back cover on the spare parts frame of this utility model;

[0020] Figure 3 This is a schematic diagram of the support frame of this utility model;

[0021] Figure 4 This is a partial structural schematic diagram of the support frame of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the components on the mounting shaft of this utility model;

[0023] Figure 6This is an installation diagram of the mounting block of this utility model;

[0024] Figure 7 This is a schematic diagram of the working operation of the mounting block of this utility model.

[0025] The markings in the diagram are as follows: 1. Base; 2. Support frame; 21. Mounting shaft; 22. Bracket; 23. Support rod mounting hole; 24. Connecting channel steel; 25. Limiting block; 26. Support block; 27. Limiting bolt; 28. Baffle; 3. Mounting block; 31. First mounting block; 32. Second mounting block; 33. Third mounting block; 34. Sleeve; 35. Support part; 36. Boss; 37. Fixing hole; 38. Connecting hole; 39. Reinforcing rib; 4. Elastic claw; 41. First elastic claw; 42. Second elastic claw; 43. Hook part; 5. Rear cover. Detailed Implementation

[0026] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of this invention, and to facilitate its implementation.

[0027] like Figures 1 to 7 As shown, the automotive rear cover painting component frame structure includes a base 1, a support frame 2 on the base 1, a mounting shaft 21 at the top of the support frame 2, mounting blocks 3 at both ends of the mounting shaft 21, and elastic claws 4 on the sides of the support frame 2. Multiple mounting blocks 3 can be mounted on the mounting shaft 21 to meet its horizontal position adjustment requirements. The mounting blocks 3 and elastic claws 4 respectively support the top and bottom of the inner side of the rear cover, stabilizing the rear cover's posture. After placement, the rear cover is essentially identical to the original vehicle body, thus facilitating subsequent electrophoretic coating and adhesive application. Furthermore, the mounting blocks 3 and elastic claws 4 only contact the inner side of the rear cover, minimizing their impact on the paint surface.

[0028] like Figures 1 to 7As shown, the mounting block 3 has a sleeve 34 and a support 35 at both ends. The sleeve 34 is fitted onto the mounting shaft 21. The sleeve 34 has a fixing hole 37, and the support 35 has a connecting hole 38. The support frame 2 has a bracket 22 on its side. One end of the elastic claw 4 is fitted onto the bracket 22, and the other end has a hook 43. Mounting block 3 can rotate on mounting shaft 21 via sleeve 34 to meet its angle adjustment requirements, thereby matching the hole position on the back cover. Mounting shaft 21 has mounting holes corresponding to fixing holes 37. The two are fixed by bolt connection, which is convenient to operate and prevents mounting block 3 from sliding left and right. Mounting block 3 can rotate with mounting shaft 21. The upper part of the back cover is stably supported by the mounting block 3. Elastic claw 4 is made of spring steel. The hook part 43 of elastic claw 4 adopts a design with opposite bending direction, so that it can be deformed and inserted into the process hole of the back cover to form a reliable abutment and anti-detachment effect, so that the lower part of the back cover is stably supported. That is, the upper and lower parts of the back cover are reliably supported by mounting block 3 and elastic claw 4 respectively. Correspondingly, the hook part 43 of elastic claw 4 can be separated from the process hole of the back cover by deformation. When the back cover is coated after electrophoresis, it is not necessary to remove the back cover from the spare parts frame, saving the disassembly, transportation and assembly process, reducing the labor intensity of production personnel and production risks.

[0029] like Figure 4 As shown, the bracket 22 has a U-shaped structure and is horizontally positioned. A strut mounting hole 23 is located on one side of the support frame 22. Both ends of the bracket 22 are inserted into the support frame 2, and one end of the elastic claw 4 is fitted onto the bracket 22. Therefore, the horizontal position of the bracket 22 can be adjusted to ensure that the elastic claw 4 corresponds to the process hole positions of different back cover models. The strut mounting hole 23 is used to install a strut to support the back cover during the glue application process.

[0030] like Figure 6 As shown, the support part 35 has a boss 36 at its end, and the connecting hole 38 passes through the boss 36. The boss 36 is designed to reduce the contact area between the mounting block 3 and the back cover, and also to reduce the damage to the back cover when connected by bolts.

[0031] like Figure 6 As shown, the top of the support frame 2 is also equipped with a limiting block 25, which is located below the mounting block 3. The top of the limiting block 25 has a sloping structure. Before the back cover is glued, the limiting block 25 does not contact the mounting block 3, and the bottom of the back cover is limited by the elastic claw 4 below. The limiting block 25 is mainly used for support after the back cover is glued. It is tilted at a certain angle to support the mounting block 3 on top. After the glue is applied, the back cover only needs to be supported by the above structure. The limiting block 25 corresponding to each set of mounting blocks 3 has a different tilt angle to meet the usage requirements of different back cover models.

[0032] like Figure 3 and Figure 4As shown, mounting block 3 includes a first mounting block 31, a second mounting block 32, and a third mounting block 33, which are arranged sequentially. Elastic claw 4 includes a first elastic claw 41 and a second elastic claw 42, with the first elastic claw 41 positioned above the second elastic claw 42. Mounting blocks 3 are provided in three positions on the mounting shaft 21, compatible with three different vehicle models' rear covers. The three mounting blocks 3 are designed according to their respective rear cover installations, ensuring that when the elastic claw 4 is removed after electrophoresis, the safety distance between the lower part of the rear cover and the spare parts frame is greater than 80mm. When the rear cover is connected and supported using a set of mounting blocks 3, the remaining mounting blocks 3 do not need to be removed from the mounting shaft 21; spatial interference can be avoided by rotating the remaining mounting blocks 3 to the inside of the support frame 2. The elastic claw 4 has two height positions to accommodate different rear cover models.

[0033] like Figure 6 As shown, the mounting block 3 has an L-shaped structure, and reinforcing ribs 39 are provided on both sides of the mounting block 3. The L-shaped mounting block 3 helps to provide reliable support for the back cover, and the reinforcing ribs 39 improve the structural strength of the mounting block 3 and extend its service life.

[0034] like Figure 3 and Figure 4 As shown, support blocks 26 are fixedly connected to both ends and the middle of the top of the support frame 2. The support blocks 26 have a V-shaped structure, and the mounting shaft 21 is located in the middle of the support block 26. The top of the support block 26 is provided with a limiting bolt 27, which is located above the mounting shaft 21. The mounting shaft 21 can rotate, which facilitates the matching of its holes with the sleeve 34 and the connection and fixation by bolts. It can also rotate as a whole to adjust the angle of the mounting block 3. The mounting shaft 21 is also easy to assemble and disassemble, and the mounting block 3 of the corresponding model can be replaced according to production needs, so as to realize the universal use of the base 1 and the support frame 2 structure. The top of each support frame 2 is supported by three support blocks 26 to support the mounting shaft 21, so that its position is horizontal. The V-shaped support blocks 26 form a groove structure, which has a limiting effect on the mounting shaft 21. The limiting bolt 27 is also provided to prevent the mounting shaft 21 from falling off. The support blocks 26 at both ends of the support frame 2 are provided with baffles 28 on the outside, which have an axial limiting effect on the mounting shaft 21.

[0035] like Figure 1 As shown, there are six support frames 2, which are located at the ends and sides of the base 1. Connecting channel steel 24 connects adjacent support frames 2. With the above structure, six back covers can be installed on top of each base 1, making full use of the space of the base 1. Adjacent support frames 2 form a whole through connecting channel steel 24, improving the overall stability. After the back covers are placed, they do not interfere with each other.

[0036] The support frame 2 is constructed from welded square tubing. The support frame 2 described above has a simple structure, reducing manufacturing costs.

[0037] Example: The spare parts frame is designed with six sets of support frames 2, which can install up to six back covers. Each set of installation positions is 1420mm long and 1100mm high. Each set of support frames 2 has three mounting blocks 3 on the upper part. The mounting blocks 3 can move left and right. The mounting blocks 3 and the mounting shaft 21 can be fixed by bolts to achieve three position switching. The part of the mounting block that contacts the back cover is designed with a 2mm thick and 22mm diameter boss 36 to reduce the contact area with the back cover. Each set of support frames 2 has an elastic claw 4 at the bottom (used during electrophoresis to ensure that the back cover is fixed without loosening). It can move within 80mm along the X direction on the bracket 22. It is fixed at the bottom of the back cover by snapping into the process hole of the back cover. After electrophoresis, the back cover is glued. During this process, the back cover needs to be opened, the lower elastic claw 4 is removed, and the support rod is installed in the support rod mounting hole 23. The end of the support rod is inserted into the process hole of the back cover to support and fix the bottom of the back cover. Then the glue is applied. After the glue is applied, the support rod is removed and the back cover is put down. There is no need to install the elastic claw 4 again. The mounting block 3 contacts the limiting support block 25 to support and limit the back cover, ensuring that there is no interference between the back cover and the spare parts frame.

[0038] The automotive rear cover painting component frame structure uses mounting blocks 3 and elastic claws 4 to support the rear cover, ensuring that the rear cover's posture is basically consistent with the original vehicle body after placement. This solves the problem of paint scratches caused by contact between the fixing spring and the rear cover, reduces rework workload, and allows the rear cover to be directly glued after installation on the component frame. It also solves the problem of manual handling required for subsequent rear cover glue application, reducing labor intensity and manufacturing costs.

[0039] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A frame structure for painting components of an automobile rear cover, characterized in that: Includes a base (1), on which a support frame (2) is provided, a mounting shaft (21) is provided at the top of the support frame (2), mounting blocks (3) are provided at both ends of the mounting shaft (21), and elastic claws (4) are provided on the side of the support frame (2).

2. The automotive rear cover painting component frame structure according to claim 1, characterized in that: The mounting block (3) has a sleeve (34) and a support (35) at both ends. The sleeve (34) is fitted onto the mounting shaft (21). The sleeve (34) has a fixing hole (37). The support (35) has a connecting hole (38). The support frame (2) has a bracket (22) on its side. One end of the elastic claw (4) is fitted onto the bracket (22), and the other end has a hook (43).

3. The automotive rear cover painting component frame structure according to claim 2, characterized in that: The bracket (22) has a U-shaped structure and is horizontally arranged; the support frame (2) is provided with a strut mounting hole (23) on the side of the bracket (22).

4. The automotive rear cover painting component frame structure according to claim 3, characterized in that: The end of the support part (35) is provided with a boss (36), and the connecting hole (38) passes through the boss (36).

5. The automotive rear cover painting component frame structure according to claim 4, characterized in that: The top of the support frame (2) is also provided with a limiting block (25), which is located below the mounting block (3). The top of the limiting block (25) is a sloping structure.

6. The automotive rear cover painting component frame structure according to any one of claims 1-5, characterized in that: The mounting block (3) includes a first mounting block (31), a second mounting block (32), and a third mounting block (33), which are arranged sequentially; the elastic claw (4) includes a first elastic claw (41) and a second elastic claw (42), with the first elastic claw (41) located above the second elastic claw (42).

7. The automotive rear cover painting component frame structure according to claim 6, characterized in that: The mounting block (3) has an L-shaped structure, and reinforcing ribs (39) are provided on both sides of the mounting block (3).

8. The automotive rear cover painting component frame structure according to claim 7, characterized in that: The support frame (2) is fixedly connected to support blocks (26) at both ends and the middle of the top. The support blocks (26) are V-shaped structures. The mounting shaft (21) is located in the middle of the support blocks (26). The top of the support blocks (26) is provided with limiting bolts (27), which are located above the mounting shaft (21).

9. The automotive rear cover painting component frame structure according to claim 6, characterized in that: The support frame (2) is provided in six parts. The support frame (2) is located at the end and side of the base (1). A connecting channel steel (24) is connected between adjacent support frames (2).

10. The automotive rear cover painting component frame structure according to claim 1, characterized in that: The support frame (2) is made of welded square tubes.

Citation Information

Patent Citations

  • Auxiliary spraying tool for rear cover of automobile

    CN105521893A