Auxiliary tool of lifting appliance for coating pretreatment of automobile parts
By designing a multi-directional fixed and flexibly adjustable lifting tooling assembly, the problem of uneven pretreatment of automotive parts in the existing technology has been solved, realizing an efficient and precise pretreatment process for coating, and improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-03-17
AI Technical Summary
Existing pretreatment hangers for automotive parts painting are difficult to use to achieve uniform treatment, resulting in uneven coating quality and poor adhesion, which affects production efficiency and quality.
An auxiliary tooling for lifting has been designed, which includes components such as a load-bearing frame, a fixing plate, a fixing sleeve, a lifting ring, a limiting ring, and an abutment rod. By fixing in multiple directions and flexibly adjusting the lifting angle and height, it ensures comprehensive and uniform processing of automotive parts.
It significantly improves the convenience and accuracy of pre-coating treatment, enhances the practicality of lifting tools and auxiliary fixtures, and improves production efficiency and product quality.
Smart Images

Figure CN223996499U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lifting tooling technology, and in particular to a lifting tooling auxiliary fixture for pre-painting treatment of automotive parts. Background Technology
[0002] Automotive parts pre-painting treatment fixtures are auxiliary tools specifically designed for use in the pre-painting process of automotive parts. They are typically used in conjunction with lifting devices to lift, secure, and transport automotive parts for pre-treatment tasks such as cleaning, rust removal, and phosphating. The design principle of these fixtures is primarily based on the needs of lifting and securing; they firmly hold automotive parts in place, preventing shaking or detachment during lifting and transportation, ensuring operational safety. They also facilitate pre-treatment operations such as cleaning, rust removal, and phosphating, improving the efficiency and quality of pre-painting treatment.
[0003] The main function of existing automotive parts pre-painting treatment lifting auxiliary tooling is to fix the position of automotive parts during the pre-painting treatment process and to lift these parts for operation with the help of the lifting tool.
[0004] While existing lifting fixtures can effectively secure automotive parts, the secured areas are often difficult to treat thoroughly. This is because the fixing components of the fixtures obstruct some areas that require pre-coating treatment, making it difficult to treat the automotive parts evenly. This not only affects the quality of the coating but may also lead to uneven coating and poor adhesion, thus weakening the practicality and effectiveness of lifting fixtures for pre-coating automotive parts in actual applications. Utility Model Content
[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose an auxiliary tooling for the pre-treatment of automotive parts painting, which can significantly enhance the practicality of the auxiliary tooling for the pre-treatment of automotive parts painting, making the entire pre-treatment process more efficient and precise.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An auxiliary tooling for pre-treatment of automotive parts before painting, comprising:
[0008] The support frame has fixing plates on both sides of the upper end, multiple drainage holes through the bottom end of the support frame, a positioning ring inside the support frame, and a limiting ring inside the support frame located outside the positioning ring.
[0009] Both fixing plates are fitted with fixing sleeves on their outer sides;
[0010] Both of the upper ends of the two fixing sleeves are equipped with multiple lifting rings on both sides;
[0011] The positioning ring is equipped with multiple clamping plates, each clamping plate has an abutment rod on one side, and one end of each abutment rod passes through the positioning ring.
[0012] Preferably, a limiting spring is fitted on the outer side of each of the multiple abutting rods, with the two ends of the limiting spring respectively located on one side of the positioning ring and the clamping plate. Two abutting plates are provided on the inner wall of the limiting ring, and one side of the multiple abutting rods and the two abutting plates are all arranged in an arc shape.
[0013] Preferably, a first screw is rotatably connected to one side of the bearing frame, an external toothed ring is provided on the outside of the limiting ring, and a rack plate is meshed with one side of the external toothed ring.
[0014] Preferably, the rack plate has a threaded hole that is adapted to the first screw, the first screw passes through the threaded hole and is threaded to the side wall of the threaded hole, and one end of the first screw passes through one side of the bearing frame and extends to the outside.
[0015] Preferably, a snap-fit ring is provided on the outer side of the limiting ring, and a snap-fit groove adapted to the snap-fit ring is provided on the inner wall of the bearing frame. The snap-fit ring is located in the snap-fit groove and is slidably connected to the side wall of the snap-fit groove.
[0016] Preferably, the two fixing plates are provided with multiple fixing holes, and the bottom ends of the two fixing sleeves are provided with fixing bolts that are adapted to the fixing holes. The two fixing bolts are respectively provided through the two fixing holes located at the bottom.
[0017] Preferably, the upper ends of both fixed sleeves are provided with rectangular grooves, the bottom ends of multiple lifting rings are respectively provided through both sides of the upper ends of the two fixed sleeves and extend into the two rectangular grooves, and the bottom ends of multiple lifting rings are provided with limiting plates.
[0018] Preferably, a second screw is rotatably connected in both rectangular slots, and the external threads on both sides of the two second screws are arranged in opposite directions. Multiple limiting plates are provided with threaded grooves that are adapted to the second screws. The two second screws pass through multiple threaded grooves respectively and are threadedly connected to the side wall of the threaded grooves.
[0019] Compared with the prior art, the advantages of this utility model are as follows:
[0020] 1. By using abutment rods set on one side of multiple abutment plates, combined with two abutment plates on the inner wall of the limiting ring, the limiting ring can easily and effectively fix the position of automotive parts from different directions during rotation. This not only greatly saves the time and labor costs required for operators to readjust the position of automotive parts, significantly improving the convenience of pre-painting treatment, but also ensures that automotive parts receive comprehensive and uniform treatment during the process, avoiding insufficient treatment due to improper positioning. This significantly enhances the practicality of the auxiliary tooling for automotive parts pre-painting treatment, making the entire pre-painting treatment process more efficient and precise, thereby improving overall production efficiency and product quality.
[0021] 2. By using fixing holes on two fixed plates, fastening bolts at the bottom of two fixed sleeves, and multiple movable lifting rings at the top of the two fixed sleeves, this design gives the lifting tool extremely high flexibility, allowing automotive parts to be easily and accurately lifted from different angles and heights. This not only greatly expands the application range of automotive parts pre-painting treatment lifting tool auxiliary fixtures, making them adaptable to various automotive parts of different shapes, sizes, and weights, but also significantly improves the convenience and efficiency of operation, thus ensuring that the lifting tool auxiliary fixture is more suitable for actual use and meets diverse production needs. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the main external structure of the auxiliary tooling for the pre-painting treatment of automotive parts proposed in this utility model;
[0023] Figure 2 This is a schematic diagram of the main cross-sectional structure of the auxiliary tooling for the pre-painting treatment of automotive parts proposed in this utility model;
[0024] Figure 3 This is a top sectional view of the auxiliary tooling for the pre-painting treatment hanger of automotive parts proposed in this utility model.
[0025] Figure 4 This is a schematic cross-sectional view of the fixed sleeve structure of the auxiliary tooling for the pre-painting treatment of automotive parts proposed in this utility model.
[0026] In the diagram: 1. Bearing frame; 2. Fixing plate; 3. Fixing sleeve; 4. Lifting ring; 5. Drainage hole; 6. Positioning ring; 7. Limiting ring; 8. Clamping plate; 9. Abutting rod; 10. Limiting spring; 11. Abutting plate; 12. First screw; 13. External toothed ring; 14. Toothed plate; 15. Snap-fit ring; 16. Fixing hole; 17. Fixing bolt; 18. Limiting plate; 19. Second screw. Detailed Implementation
[0027] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0028] Reference Figure 1-4 An auxiliary tooling for pre-treatment of automotive parts before painting includes a support frame 1. Fixing plates 2 are provided on both sides of the upper end of the support frame 1. Fixing sleeves 3 are fitted onto the outer sides of both fixing plates 2. Multiple lifting rings 4 are provided on both sides of the upper end of the two fixing sleeves 3. Multiple drainage holes 5 are provided through the bottom end of the support frame 1, effectively draining water from the automotive parts. A positioning ring 6 is provided inside the support frame 1. A limiting ring 7 is provided inside the support frame 1 outside the positioning ring 6. Multiple clamping plates 8 are provided inside the positioning ring 6. An abutment rod 9 is provided on one side of each clamping plate 8, and one end of each abutment rod 9 passes through the positioning ring 6.
[0029] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, a limiting spring 10 is sleeved on the outer side of each of the multiple abutment rods 9. The two ends of the limiting spring 10 are respectively set on one side of the positioning ring 6 and the clamping plate 8. The limiting spring 10 can restrict the position of the clamping plate 8. When the abutment rod 9 is separated from the abutment plate 11, the clamping plate 8 can be restored to its original position. Two abutment plates 11 are provided on the inner wall of the limiting ring 7. The multiple abutment rods 9 and the two abutment plates 11 are all arranged in an arc shape on one side. The arc-shaped abutment rods 9 and abutment plates 11 can better push the abutment rods 9 to move, thereby driving the clamping plate 8 to move, and conveniently fixing the position of the automotive parts.
[0030] Specifically, such as Figure 1 Figure 2 and Figure 3 As shown, a first screw 12 is rotatably connected to one side of the bearing frame 1, and an external toothed ring 13 is provided on the outside of the limiting ring 7. A rack plate 14 is meshed with one side of the external toothed ring 13. When the rack plate 14 moves, it can drive the external toothed ring 13 and the limiting ring 7 to rotate, thereby driving the two abutment plates 11 to rotate and fix the position of the automotive parts.
[0031] Specifically, such as Figure 3As shown, the rack plate 14 is provided with a threaded hole that is adapted to the first screw 12. The first screw 12 passes through the threaded hole and is threaded to the side wall of the threaded hole. By rotating the first screw 12, the rack plate 14 can be moved. When the first screw 12 stops rotating, the position of the rack plate 14 can be locked, thereby ensuring the firmness of fixing the automotive parts. One end of the first screw 12 passes through one side of the bearing frame 1 and extends to the outside.
[0032] Specifically, such as Figure 1 . Figure 2 and Figure 3 As shown, a snap ring 15 is provided on the outer side of the limiting ring 7, and a snap groove adapted to the snap ring 15 is provided on the inner wall of the bearing frame 1. The snap ring 15 is located in the snap groove and is slidably connected to the side wall of the snap groove. The snap ring 15 cooperates with the snap groove in the bearing frame 1 to limit the position of the limiting ring 7 without affecting its rotation, thus preventing its position from shifting.
[0033] Specifically, such as Figure 2 and Figure 4 As shown, two fixing plates 2 are provided with multiple fixing holes 16, and the bottom ends of two fixing sleeves 3 are provided with fixing bolts 17 that are adapted to the fixing holes 16. The two fixing bolts 17 are respectively provided through two fixing holes 16 located at the bottom. The multiple fixing holes 16 and the two fixing bolts 17 can flexibly adjust the height of the auxiliary tooling for the pre-treatment of automotive parts before painting, so that it can be adapted to automotive parts of different sizes and heights.
[0034] Specifically, such as Figure 4 As shown, rectangular grooves are provided through the upper ends of both fixed sleeves 3, and the bottom ends of multiple lifting rings 4 pass through the upper sides of the two fixed sleeves 3 and extend into the two rectangular grooves. Each of the multiple lifting rings 4 has a limiting plate 18 at its bottom end. The multiple limiting plates 18 can not only drive the multiple lifting rings 4 to move respectively, so that the lifting device can lift the car parts more flexibly, but also improve the bearing capacity of the multiple lifting rings 4, so that the lifting device can lift the car parts more stably.
[0035] Specifically, such as Figure 4 As shown, two rectangular slots are rotatably connected to second screws 19. The external threads on both sides of the two second screws 19 are arranged in opposite directions. When the second screws 19 rotate, they can drive multiple lifting rings 4 on both sides of the fixed sleeve 3 to move in opposite directions, thereby flexibly adjusting the position of multiple lifting rings 4. Multiple limiting plates 18 are provided with threaded grooves that are adapted to the second screws 19. The two second screws 19 pass through multiple threaded grooves and are threaded to the side walls of the threaded grooves. By rotating the second screws 19, the limiting plates 18 and lifting rings 4 can be moved, and their positions can be locked when rotation stops.
[0036] In use, the automotive parts requiring pre-painting treatment are first placed in the support frame 1. Then, the first screw 12 is rotated, which moves the rack plate 14. The rack plate 14 moves the outer gear ring 13, which in turn moves the limiting ring 7 and the two abutment plates 11. The two abutment plates 11 push the abutment rods 9 on both sides to move, thereby moving the clamping plates 8 on both sides. The clamping plates 8 then press against the two sides of the automotive parts, firmly fixing their positions. When pre-painting treatment is needed on the clamped areas of the automotive parts, the first screw 12 is rotated again, causing the limiting ring 7 and the two abutment plates 11 to continue rotating. This pushes the abutment rods 9 on the other two sides, allowing the clamping plates 8 on the other two sides to press against the automotive parts, ensuring that the automotive parts are fully and comprehensively treated.
[0037] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. An automobile parts coating pretreatment lifting appliance auxiliary tool, characterized by, Comprising The bearing frame is provided with a fixed plate on both sides of the upper end, a plurality of drainage holes are provided at the bottom end of the bearing frame, a positioning ring is arranged in the bearing frame, and a limiting ring is arranged outside the positioning ring; Both sides of the outer side of the two fixed sleeves are provided with a plurality of lifting rings; The upper end of the two fixed sleeves is provided with a plurality of lifting rings on both sides; A plurality of clamping plates are arranged in the positioning ring, a plurality of abutting rods are arranged on one side of the clamping plates, and one end of the abutting rods penetrates the positioning ring.
2. The automotive parts pre-painting treatment lifting appliance auxiliary tool according to claim 1, characterized in that, The outer side of the plurality of abutting rods is sleeved with a limiting spring, the limiting spring is arranged on the positioning ring and the clamping plate on one side, respectively, the inner wall of the limiting ring is provided with two abutting plates, and one side of the plurality of abutting rods and the two abutting plates is arranged in a circular arc shape.
3. The automotive parts pre-painting treatment lifting appliance auxiliary tooling according to claim 1, characterized in that, The bearing frame is rotatably connected with a first screw rod on one side, the outer side of the limiting ring is provided with an outer gear ring, and one side of the outer gear ring is rotatably connected with a rack plate.
4. The automotive parts pre-painting treatment lifting appliance auxiliary tooling according to claim 3, characterized in that, The rack plate is provided with a threaded hole matched with the first screw rod, the first screw rod penetrates the threaded hole and is threadedly connected with the side wall of the threaded hole, one end of the first screw rod penetrates one side of the bearing frame and extends to the outside.
5. The automotive parts pre-painting treatment lifting tool auxiliary tool according to claim 1, characterized in that, The outer side of the limiting ring is provided with a clamping ring, the inner wall of the bearing frame is provided with a clamping groove matched with the clamping ring, and the clamping ring is arranged in the clamping groove and is slidably connected with the side wall of the clamping groove.
6. The automotive parts pre-painting treatment lifting tool auxiliary tool according to claim 1, characterized in that, The two fixed plates are provided with a plurality of fixed holes, the bottom end of the two fixed sleeves is provided with a fixed bolt matched with the fixed hole, and the two fixed bolts penetrate the two fixed holes at the bottom, respectively.
7. The automotive parts pre-painting treatment lifting tool auxiliary tool according to claim 1, characterized in that, The upper end of the two fixed sleeves is provided with a rectangular groove, the bottom end of the plurality of lifting rings penetrates the upper end of the two fixed sleeves on both sides and extends into the two rectangular grooves, and the bottom end of the plurality of lifting rings is provided with a limiting plate.
8. The automotive parts pre-painting treatment lifting appliance auxiliary tooling according to claim 7, characterized in that, Both sides of the two second screw rods are provided with external threads in opposite directions, a plurality of limiting plates are provided with a threaded groove matched with the second screw rod, and the two second screw rods penetrate the plurality of threaded grooves and are threadedly connected with the side wall of the threaded groove, respectively.