A plating layer structure for automobile steel ring processing

By designing a combination of electroplating tank and mounting structure, the problem of air bubbles and mounting risks during the electroplating of automotive steel wheels were solved, achieving stable mounting and uniform electroplating, and improving the electroplating effect.

CN224395085UActive Publication Date: 2026-06-23CHONGQING NANJIN TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING NANJIN TECHNOLOGY CO LTD
Filing Date
2025-08-07
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

In existing automotive steel wheel electroplating processes, due to their large size, complex shape, and numerous internal hollows, air bubbles are easily generated when immersed in the electroplating bath, affecting the integrity of the electroplated layer. Furthermore, conventional mounting brackets are difficult to use effectively, posing a risk of detachment and wear.

Method used

An electroplating system comprising an electroplating tank, an electric trolley, a lifting device, and a mounting structure was designed. By combining the suspension and mounting structures, large-area contact and inertial rotation are used to eliminate air bubbles, achieving stable mounting and uniform electroplating.

Benefits of technology

It achieves stable mounting of automotive steel wheels, avoids wear, improves the integrity and uniformity of the electroplating layer, reduces the impact of bubbles, and improves the electroplating effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of electroplating layer structures for automobile steel ring processing, belong to automobile steel ring processing technical field, and its technical scheme main points include electroplating tank, the top of the electroplating tank is equipped with electric travelling crane, the bottom of the electric travelling crane is equipped with lifting device, the outer side of the lifting device is movably connected with suspension, the bottom of the suspension is fixedly connected with hanger structure, flexible installation and fixation of vertical frame on conducting rod are realized by sleeve, rubber sleeve and fastening screw rod, the firm mounting of steel ring is realized using openwork hanging plate cooperation torsional spring, increase contact area to avoid mounting damage, steel ring reciprocating small amplitude rotation is driven in combination with reduction motor, gear rack and other transmission assembly, using inertia lets steel ring contact position alternate exposure and auxiliary bubble removal, effectively solve the problems, such as bubble, mounting instability and contact damage, in traditional electroplating.
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Description

Technical Field

[0001] This utility model relates to the field of automotive steel wheel processing technology, and in particular to an electroplating layer structure for automotive steel wheel processing. Background Technology

[0002] Electroplating of automotive steel wheels is an important process for improving their appearance, corrosion resistance, and wear resistance. It can present a metallic mirror luster and extend service life. It has extremely high requirements for the uniformity, brightness, adhesion, salt spray resistance, and hardness of the coating, and must be compatible with different substrates such as aluminum alloy or steel. The pretreatment involves degreasing, pickling, polishing, and cleaning to remove impurities and activate the surface to ensure that the coating adheres firmly. The core electroplating process often uses a multi-layer system of copper, nickel, and chromium. Copper plating fills defects and enhances the bonding force, nickel plating improves corrosion resistance and hardness, and chromium plating gives it a mirror luster and high wear resistance. The post-treatment includes cleaning and drying, passivation treatment, and inspection and repair.

[0003] In the current electroplating process for automotive steel rims, the large size, complex shape, and numerous internal hollows make them prone to air bubbles when immersed in the electroplating bath, affecting the integrity of the electroplating layer. Conventional hangers are also difficult to use effectively to mount the automotive steel rims, as they risk falling off. Furthermore, due to their weight, the small contact area of ​​the hanger hooks may cause wear and damage at the mounting point.

[0004] Therefore, an electroplating layer structure for automotive steel wheel processing is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide an electroplating layer structure for automotive steel wheel processing, which can solve the problems of existing automotive steel wheel electroplating processes, which are limited by their large size, complex shape, and many internal hollows. Therefore, when immersed in the electroplating bath, air bubbles are easily generated, which affects the integrity of the electroplating layer. Conventional hangers are also difficult to effectively hang automotive steel wheels, as they are at risk of falling off. Furthermore, due to their weight, the small contact area of ​​the hanger hooks may cause wear and damage at the hanging position.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an electroplating layer structure for processing automotive steel rims, including an electroplating tank, an electric trolley at the top of the electroplating tank, a lifting device at the bottom of the electric trolley, a suspension movably connected to the outside of the lifting device, and a hanging structure fixedly connected to the bottom of the suspension.

[0007] The hanging structure includes a carrier plate, a rotating shaft rotatably connected to the inner side of the carrier plate, a connecting plate fixedly connected to the bottom of the rotating shaft, a conductive rod fixedly connected to the outer side of the connecting plate, a vertical frame movably connected to the bottom of the conductive rod, and a hanging plate movably connected to the bottom of the vertical frame.

[0008] Preferably, a stand is fixedly connected to the top of the carrier plate, a shaft segment is fixedly connected to the top of the stand, a top plate is fixedly connected to the top of the shaft segment, a reduction motor is fixedly connected to the top right side of the top plate, a rocker arm is rotatably connected to the outer side of the shaft segment, a rack is fixedly connected to the left side of the rocker arm, an elongated groove is formed on the inner side of the rocker arm, a gear is fixedly connected to the outer side of the top of the rotating shaft, the gear and the rack are meshed, the output end of the reduction motor passes through the top plate and is fixedly connected to a turntable, a lever is fixedly connected to the bottom of the turntable, and the lever is located inside the elongated groove.

[0009] Preferably, the connecting plate is connected to the power supply via a conductive clamp, and a bearing is installed on the inner side of the carrier plate, with the inner side of the bearing rotatably connected to the rotating shaft.

[0010] Preferably, the top of the vertical frame is provided with an integrally formed sleeve, and the inner side of the sleeve is inserted into the conductive rod.

[0011] Preferably, a rubber sleeve is slidably connected to the outer side of the conductive rod, and a fastening screw is threadedly connected to the inner side of the rubber sleeve.

[0012] Preferably, the hanging plate is designed to be hollow, the inner side of the hanging plate is rotatably connected to the surface of the vertical frame, and a torsion spring is fixedly connected to the outer side of the hanging plate, with the side of the torsion spring away from the hanging plate being fixedly connected to the vertical frame.

[0013] Preferably, an insulating base is fixedly connected to the top of the electroplating tank, a linear guide rail is fixedly connected to the top of the insulating base, a bracket is slidably connected to the top of the linear guide rail, a purge pipe is provided on the inner side of the bracket, and the purge pipe is externally connected to the output end of a blower.

[0014] Preferably, a secondary pool is fixedly connected to the right side of the electroplating tank, and an overflow pipe is fixedly connected to the left side of the secondary pool. The left side of the overflow pipe is fixedly connected to the right side of the electroplating tank.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This application involves setting up an electroplating tank filled with electroplating solution. An electric trolley is used to drive the structure and the steel rim being processed through multiple electroplating processes. After moving to the desired electroplating tank, a lifting device lowers the suspension to lower the mounting structure, allowing for the loading and unloading of the steel rim. Before operation, the appropriate number of vertical frames can be selected based on the cutout position and number of cutouts in the steel rim, and installed at the relative position of the conductive rod. When installing the steel rim, the mounting plate can be rotated along the vertical frame, allowing it to enter the cutout position of the steel rim and return to its original position, contacting the wheel spokes to secure the automotive steel rim. Because of its larger contact area compared to conventional hooks, the weight of the steel ring is less likely to damage it during mounting. During electroplating, the steel ring is completely immersed in the electroplating tank. The rotating shaft rotates back and forth with small amplitudes, and the steel ring in contact with it also rotates with it. When it stops rotating, the steel ring continues to rotate a certain angle due to inertia. At this point, the original contact position with the hanging plate is exposed to contact the electroplating solution. The dynamics and vibrations generated by the steel ring as it rotates back and forth due to inertia also help to remove internal air bubbles and improve the electroplating effect. Attached Figure Description

[0017] Figure 1 This is an overall structural diagram of the electroplating layer structure for processing automotive steel rims according to this utility model.

[0018] Figure 2 This is a schematic diagram of the hanging fixture structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the vertical frame of this utility model;

[0020] Figure 4 This is a schematic diagram of the connection of the carrier plate of this utility model.

[0021] In the diagram, 1. Electroplating tank; 2. Electric trolley; 3. Lever; 4. Lifting device; 5. Suspension; 6. Hanging structure; 61. Carrier plate; 62. Rotating shaft; 63. Connecting plate; 64. Conductive rod; 65. Vertical frame; 66. Hanging plate; 7. Sleeve; 8. Rubber sleeve; 9. Fastening screw; 10. Torsion spring; 11. Linear guide rail; 12. Bracket; 13. Blowpipe; 14. Auxiliary pool; 15. Overflow pipe; 16. Stand; 17. Shaft section; 18. Top plate; 19. Gear motor; 20. Swing arm; 21. Rack; 22. Gear; 23. Turntable. Detailed Implementation

[0022] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 The present invention provides the following technical solution:

[0024] An electroplating structure for processing automotive steel rims includes an electroplating tank 1, an electric trolley 2 at the top of the electroplating tank 1, a lifting device 4 at the bottom of the electric trolley 2, a suspension 5 movably connected to the outside of the lifting device 4, and a hanger structure 6 fixedly connected to the bottom of the suspension 5.

[0025] The hanging structure 6 includes a carrier plate 61, a rotating shaft 62 is rotatably connected to the inner side of the carrier plate 61, a connecting plate 63 is fixedly connected to the bottom of the rotating shaft 62, a conductive rod 64 is fixedly connected to the outer side of the connecting plate 63, a vertical frame 65 is movably connected to the bottom of the conductive rod 64, and a hanging plate 66 is movably connected to the bottom of the vertical frame 65.

[0026] In this embodiment: Electroplating solution is added to the electroplating tank 1. An electric trolley 2 drives the structure and the steel ring being processed through multiple electroplating processes. After moving to the desired electroplating tank 1, the suspension 5 is lowered via the lifting device 4 to lower the hanging structure 6. At this point, the steel ring can be loaded and unloaded. Before operation, a corresponding number of vertical frames 65 can be selected based on the cutout position and number of cutouts in the steel ring, and installed at the relative position of the conductive rod 64. When installing the steel ring, the hanging plate 66 can be rotated along the vertical frame 65. The hanging plate 66 enters the cutout position of the steel ring and returns to its original position, contacting the spokes to complete the loading and unloading process. The secure mounting for the car wheel rim has a larger contact area than conventional hooks, making it less likely to damage the wheel rim due to its weight during mounting. During electroplating, the wheel rim is completely immersed in the electroplating tank 1. The rotating shaft 62 rotates slightly back and forth, and the wheel rim in contact with it also rotates with it. When the rotation stops, the wheel rim continues to rotate a certain angle due to inertia. At this time, the original contact position with the mounting plate 66 is exposed to contact the electroplating solution. When the wheel rim rotates back and forth due to inertia, its own dynamics and vibrations also help to remove internal air bubbles and improve the electroplating effect.

[0027] Specifically, such as Figure 4As shown, a stand 16 is fixedly connected to the top of the carrier plate 61, a shaft segment 17 is fixedly connected to the top of the stand 16, a top plate 18 is fixedly connected to the top of the shaft segment 17, a geared motor 19 is fixedly connected to the top right side of the top plate 18, a rocker arm 20 is rotatably connected to the outer side of the shaft segment 17, a rack 21 is fixedly connected to the left side of the rocker arm 20, a long groove is opened on the inner side of the rocker arm 20, a gear 22 is fixedly connected to the outer side of the top of the rotating shaft 62, the gear 22 and the rack 21 are meshed, the output end of the geared motor 19 passes through the top plate 18 and is fixedly connected to a turntable 23, a lever 3 is fixedly connected to the bottom of the turntable 23, and the lever 3 is located inside the long groove.

[0028] Specifically, such as Figure 4 As shown, the connecting plate 63 is connected to the power supply via a conductive clamp, and a bearing is installed on the inner side of the carrier plate 61. The inner side of the bearing is rotatably connected to the rotating shaft 62.

[0029] Specifically, such as Figure 4 As shown, the top of the vertical frame 65 is provided with an integrally formed sleeve 7, and the inner side of the sleeve 7 is inserted into the conductive rod 64.

[0030] In this embodiment: by setting the stand 16, when it is necessary to drive the rotating shaft 62 to rotate, the reduction motor 19 is started. The reduction motor 19 drives the turntable 23 to rotate. The lever 3 connected to it will push the swing arm 20 to continue swinging along the shaft end on the inner side of the long slot. During the swinging process, the rack 21 reciprocates to contact and mesh with the gear 22, so as to drive the rotating shaft 62 to rotate back and forth. By setting the bearing, it is easy to connect the rotating shaft 62 and the carrier plate 61. The rotating shaft 62 can rotate smoothly along the bearing. By setting the sleeve 7, the conductive rod 64 can be inserted into different positions of the conductive rod 64 as needed.

[0031] Specifically, such as Figure 3 As shown, a rubber sleeve 8 is slidably connected to the outer side of the conductive rod 64, and a fastening screw 9 is threadedly connected to the inner side of the rubber sleeve 8.

[0032] Specifically, such as Figure 3 As shown, the hanging plate 66 is hollowed out. The inner side of the hanging plate 66 is rotatably connected to the surface of the vertical frame 65. A torsion spring 10 is fixedly connected to the outer side of the hanging plate 66. The side of the torsion spring 10 away from the hanging plate 66 is fixedly connected to the vertical frame 65.

[0033] In this embodiment: by setting the rubber sleeve 8, after the sleeve 7 is installed and moved to the required position, the rubber sleeve 8 can be pushed to both sides of the sleeve 7, and then the fastening screw 9 can be tightened to complete the fixation and limiting of the structure.

[0034] Specifically, such as Figure 1As shown, an insulating base is fixedly connected to the top of the electroplating tank 1, a linear guide rail 11 is fixedly connected to the top of the insulating base, a bracket 12 is slidably connected to the top of the linear guide rail 11, a purge pipe 13 is provided on the inner side of the bracket 12, and the purge pipe 13 is externally connected to the output end of a blower.

[0035] Specifically, such as Figure 1 As shown, a secondary pool 14 is fixedly connected to the right side of the electroplating tank 1, and an overflow pipe 15 is fixedly connected to the left side of the secondary pool 14. The left side of the overflow pipe 15 is fixedly connected to the right side of the electroplating tank 1.

[0036] In this embodiment: by setting an insulating seat for mounting the linear guide rail 11, the steel ring is lifted after the electroplating operation is completed. The bracket 12 can be moved along the linear guide rail 11 as needed, and air is blown into the blow pipe 13 by an external blower to blow away the electroplating liquid adhering to the surface. Since the car steel ring is large in volume, it will cause the liquid level to rise when immersed in the electroplating tank. At this time, it can flow into the auxiliary tank 14 through the overflow pipe 15.

[0037] Working principle: First, based on the cutout position and number of the car wheel rim, the vertical bracket 65 is inserted into the corresponding position of the conductive rod 64 through the sleeve 7. The sliding rubber sleeve 8 is then tightened and the fastening screw 9 is tightened to complete the fixation. When mounting the wheel rim, the mounting plate 66 is rotated to pass through the cutout of the wheel rim. The rebound force of the torsion spring 10 is used to return the mounting plate 66 to its original position. The large-area contact between the cutout mounting plate 66 and the wheel rim spokes achieves a stable mounting, while avoiding damage to the mounting position due to the weight of the wheel rim itself. Next, the electric trolley 2 moves the entire mounting structure 6 above the target electroplating tank 1. The lifting device 4 drives the suspension 5 to descend, immersing the mounted wheel rim into the electroplating solution in the electroplating tank 1. The connecting plate 63 is connected to the power supply through the conductive clamp. The current is conducted to the wheel rim through the conductive rod 64 and the vertical bracket 65, meeting the conductivity requirements of electroplating. During the electroplating process... The geared motor 19 drives the turntable 23 to rotate. The lever 3 drives the swing arm 20 to swing around the shaft section 17 through the long groove of the swing arm 20, so that the rack 21 and the gear 22 mesh and transmit power, thereby driving the rotating shaft 62 to rotate back and forth in small amplitudes. The steel ring rotates with the rotating shaft 62. When it stops rotating, it continues to rotate a certain angle due to inertia, so that the position that was originally in contact with the hanging plate 66 is exposed and comes into contact with the electroplating solution. At the same time, it eliminates internal air bubbles through its own dynamics and vibration, improving the uniformity of the plating layer. During electroplating, the rise in the level of the electroplating solution caused by the steel ring immersion is diverted to the auxiliary pool 14 through the overflow pipe 15 to maintain the stability of the liquid level in the electroplating tank 1. After the electroplating is completed, the lifting device 4 lifts the steel ring and moves the bracket 12 along the linear guide rail 11. The external blower connected to the blow pipe 13 blows away the residual electroplating solution on the surface of the steel ring, reducing liquid dripping.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A plating layer structure for automobile wheel machining, comprising a plating tank (1), characterized in that: The top of the electroplating tank (1) is provided with an electric trolley (2), the bottom of the electric trolley (2) is provided with a lifting device (4), the outside of the lifting device (4) is movably connected with a suspension (5), and the bottom of the suspension (5) is fixedly connected with a hanging structure (6). The hanging structure (6) includes a carrier plate (61), a rotating shaft (62) is rotatably connected to the inner side of the carrier plate (61), a connecting plate (63) is fixedly connected to the bottom of the rotating shaft (62), a conductive rod (64) is fixedly connected to the outer side of the connecting plate (63), a vertical frame (65) is movably connected to the bottom of the conductive rod (64), and a hanging plate (66) is movably connected to the bottom of the vertical frame (65).

2. The plating layer structure for processing automobile wheel according to claim 1, wherein: A stand (16) is fixedly connected to the top of the carrier plate (61). A shaft segment (17) is fixedly connected to the top of the stand (16). A top plate (18) is fixedly connected to the top of the shaft segment (17). A geared motor (19) is fixedly connected to the top right side of the top plate (18). A rocker arm (20) is rotatably connected to the outer side of the shaft segment (17). A rack (21) is fixedly connected to the left side of the rocker arm (20). A long groove is opened on the inner side of the rocker arm (20). A gear (22) is fixedly connected to the outer side of the top of the rotating shaft (62). The gear (22) and the rack (21) are meshed. The output end of the geared motor (19) passes through the top plate (18) and is fixedly connected to a turntable (23). A lever (3) is fixedly connected to the bottom of the turntable (23). The lever (3) is located inside the long groove.

3. The electroplated layer structure for processing automobile steel rings according to claim 1, characterized in that: The connecting plate (63) is connected to the power source via a conductive clamp. A bearing is installed on the inner side of the carrier plate (61), and the inner side of the bearing is rotatably connected to the rotating shaft (62).

4. The electroplated layer structure for processing automobile steel rings according to claim 1, characterized in that: The top of the vertical frame (65) is provided with an integrally formed sleeve (7), and the inner side of the sleeve (7) is inserted into the conductive rod (64).

5. The electroplated layer structure for processing automobile steel rings according to claim 1, characterized in that: A rubber sleeve (8) is slidably connected to the outside of the conductive rod (64), and a fastening screw (9) is threadedly connected to the inside of the rubber sleeve (8).

6. The electroplated layer structure for processing automobile steel rings according to claim 1, characterized in that: The hanging plate (66) is designed to be hollow. The inner side of the hanging plate (66) is rotatably connected to the surface of the vertical frame (65). A torsion spring (10) is fixedly connected to the outer side of the hanging plate (66). The side of the torsion spring (10) away from the hanging plate (66) is fixedly connected to the vertical frame (65).

7. The electroplated layer structure for processing automobile steel rings according to claim 1, characterized in that: An insulating base is fixedly connected to the top of the electroplating tank (1), and a linear guide rail (11) is fixedly connected to the top of the insulating base. A bracket (12) is slidably connected to the top of the linear guide rail (11). A purge pipe (13) is provided on the inner side of the bracket (12), and the purge pipe (13) is connected to the output end of a blower.

8. The electroplated layer structure for processing automobile steel rings according to claim 1, characterized in that: A secondary pool (14) is fixedly connected to the right side of the electroplating tank (1), and an overflow pipe (15) is fixedly connected to the left side of the secondary pool (14). The left side of the overflow pipe (15) is fixedly connected to the right side of the electroplating tank (1).