An electrophoretic spraying mechanism for automobile accessories
By designing a fixed rotation and lifting mechanism, the problem of incomplete contact between the middle part of the electrophoresis coating and the electrophoresis solution is solved. This enables the parts to be lifted and rotated within the electrophoresis pool, improving the coverage and uniformity of the electrophoresis coating, and making the operation simple.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO HUICHENG MASCH MFG CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-06-09
AI Technical Summary
In existing electrophoretic coating mechanisms for automotive parts, the rotating clamp is positioned above the electrophoretic pool, which makes it difficult for the middle part of the automotive part to fully contact the electrophoretic liquid, easily creating dead zones and reducing the electrophoretic effect.
The system employs a fixed rotating mechanism and a lifting mechanism. The clamping plate is fixed by the synchronous operation of a waterproof cylinder. The meshing of gears and teeth enables the lifting and rotation of the accessories within the electric pool. The support mechanism facilitates the fixing and removal of the accessories.
It improves the electrophoretic coverage of automotive parts, avoids dead spots in electrophoresis, ensures coating uniformity, and is easy to operate.
Smart Images

Figure CN224337763U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of electrophoretic spraying technology, specifically an electrophoretic spraying mechanism for automotive parts. Background Technology
[0002] Since its development in the 1960s, electrophoretic coating technology has been widely used in the automotive industry due to its excellent characteristics, including water-based environmental protection, high corrosion resistance, high penetration, high coulombic efficiency, non-dissolving of the coated object, stable bath solution, and high degree of automation.
[0003] A search revealed that patent CN221895155U discloses an electrophoretic coating mechanism for automotive parts, including an electrophoretic coating pool. A frame is mounted on one side of the electrophoretic coating pool, and a rotating clamp is mounted on the frame above the electrophoretic coating pool. An auxiliary clamp is also mounted on the rotating clamp. The auxiliary clamp is used to clamp the automotive parts longitudinally, while the rotating clamp is used to clamp the automotive parts laterally and rotate them. This invention can fix the automotive parts in two directions, ensuring effective clamping. After fixing the automotive parts with the rotating clamp and auxiliary clamp, a rotary cylinder is activated to rotate the automotive parts in the electrophoretic coating pool. The angle of the automotive parts in the electrophoretic coating pool is adjusted by the rotary cylinder to ensure that the areas requiring electrophoretic coating are covered, preventing missed areas and ensuring the uniformity of the coating on the surface of the automotive parts.
[0004] Analysis of the above technical solutions reveals that, due to the rotating clamp being positioned above the electrophoretic coating pool, the position of the automotive parts within the pool is limited, making it difficult for the electrophoretic solution to fully cover the parts. This results in the central portion of the parts not contacting the solution, creating dead zones and ultimately reducing the electrophoretic coating effect. Therefore, we provide an electrophoretic coating mechanism for automotive parts to address these issues. Utility Model Content
[0005] To address the problems mentioned in the background section, this utility model provides an electrophoretic coating mechanism for automotive parts.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an electrophoretic coating mechanism for automotive parts, comprising an electrophoretic pool, wherein two opposing fixed rotating mechanisms are arranged within the electrophoretic pool, each comprising a fixed plate and two opposing U-shaped seats. A lifting mechanism for driving the fixed plate to rise and fall is provided on the electrophoretic pool. The bottom ends of the two U-shaped seats are fixedly connected to the inner bottom wall of the electrophoretic pool. A gear is slidably arranged between the two U-shaped seats. Several teeth are fixedly connected to the inner wall of one of the U-shaped seats, and the gear meshes with the teeth. A waterproof cylinder is mounted on the fixed plate. A connecting plate is fixedly connected to the telescopic end of the waterproof cylinder. A rotating shaft is provided through the middle of the gear. One end of the rotating shaft is rotatably connected to the connecting plate, and the other end of the rotating shaft is fixedly connected to a clamping plate. A support mechanism is provided in the middle of the electrophoretic pool.
[0007] Preferably, the lifting mechanism includes a motor, which is fixedly connected to the electric pool via a bracket. A screw is fixedly connected to the output end of the motor, and the bottom end of the screw is rotatably disposed on the inner bottom wall of the electric pool. A movable block is fixedly connected to the side of the fixed plate, and the movable block is threadedly sleeved on the surface of the screw.
[0008] Preferably, each of the two U-shaped seats has several fixing rods fixedly connected to its opposite side, and one end of each fixing rod is fixedly connected to the inner wall of the electric pool.
[0009] Preferably, the support mechanism includes two fixed sleeves, both of which are fixedly connected to the electric pool. Each of the two fixed sleeves has a limit block slidably disposed inside it, and the top of the limit block is flush with the upper surface of the fixed sleeve. Each of the two limit blocks has a stop rod hinged to its bottom end.
[0010] Preferably, a connecting rod is fixedly connected between the bottom ends of the two stops.
[0011] Preferably, both ends of the fixing plate are provided with guide rods, and the bottom ends of the guide rods are fixed to the inner bottom wall of the electric pool. The two ends of the fixing plate are slidably sleeved on the two guide rods respectively.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model, through the setting of a fixed rotating mechanism and a lifting mechanism, can utilize the synchronous operation of two sets of waterproof cylinders on the left and right sides to make two connecting plates simultaneously push two rotating shafts closer to each other, thereby clamping and fixing the automotive parts with two clamping plates. Then, the lifting mechanism controls the two fixed plates to descend synchronously, and drives the automotive parts to descend together into the electrophoresis pool. When the gears contact the teeth, they will rotate, further driving the rotating shafts and clamping plates to rotate. This realizes that the automotive parts are lifted and rotated in the electrophoresis pool at the same time, thereby improving the electrophoresis coverage of the parts and avoiding electrophoresis dead zones on the automotive parts.
[0014] 2. With the support mechanism, this utility model allows the two clamps to be raised above the fixing sleeve before the automotive parts are fixed. Then, the two levers are swung to a horizontal position and pushed backward so that they rest on the electrophoresis pool. The automotive parts are then placed directly on the two levers, providing support without requiring personnel to hold the parts continuously. The two clamps then hold and fix the parts in place. The two levers are then pulled and swung downward to ensure the automotive parts descend normally into the electrophoresis pool for electrophoresis treatment. After the electrophoresis is completed, the parts are raised above the fixing sleeve, and the two levers support the parts again. The clamps are then released from their fixation, allowing the parts to be easily removed by personnel. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the orthographic section of the present invention;
[0017] Figure 3 This is a partial schematic diagram of the fixed rotation mechanism of this utility model;
[0018] Figure 4 This is a partial sectional view of the fixed rotation mechanism of this utility model;
[0019] Figure 5 This is a schematic diagram of the support mechanism of this utility model;
[0020] Figure 6 This is a schematic diagram showing the connection between the fixing sleeve and the limiting block of this utility model.
[0021] In the diagram: 1. Electric swimming pool; 2. Motor; 3. Screw; 4. U-shaped seat; 5. Fixing sleeve; 6. Limiting block; 7. Stop bar; 8. Connecting rod; 9. Guide rod; 10. Fixing rod; 11. Waterproof cylinder; 12. Fixing plate; 13. Moving block; 14. Gear; 15. Connecting plate; 16. Rotating shaft; 17. Clamping plate; 18. Gear teeth. 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] Example 1, as Figure 1-6As shown, this embodiment proposes an electrophoretic coating mechanism for automotive parts, including an electrophoretic coating pool 1. Two opposing fixed-rotation mechanisms are installed within the electrophoretic coating pool 1, which can fix and rotate the automotive parts. Each mechanism includes a fixed plate 12 and two opposing U-shaped seats 4. A lifting mechanism is provided on the electrophoretic coating pool 1 to drive the fixed plate 12 to rise and fall within the electrophoretic coating pool 1. The lifting mechanism achieves the lifting effect of the fixed plate 12 within the electrophoretic coating pool 1. The bottom ends of the two U-shaped seats 4 are fixed to the inner bottom wall of the electrophoretic coating pool 1. A gear 14 is slidably arranged between the two U-shaped seats 4, guiding the sliding of the gear 14. One of the gears... Several teeth 18 are fixedly connected to the inner wall of the U-shaped seat 4, and the gear 14 meshes with the teeth 18. A waterproof cylinder 11 is installed on the fixing plate 12. The waterproof cylinder 11 is a mature existing technology and will not be described in detail here. The telescopic end of the waterproof cylinder 11 is fixedly connected to a connecting plate 15. Two waterproof cylinders 11 are set to drive the connecting plate 15 to move more smoothly. A rotating shaft 16 is installed through the middle of the gear 14, so that the gear 14 can only move up and down and rotate between the two U-shaped seats 4, and will not move left and right. The rotating shaft 16 will move in the middle of the gear 14, and when the gear 14 rotates, it will also drive the rotating shaft 16 to rotate together. One end of the rotating shaft 16 is rotatably connected to the connecting plate 15, and the other end is fixedly connected to the clamping plate 17. With this structure, the synchronous operation of the two sets of waterproof cylinders 11 allows the two connecting plates 15 to simultaneously push the two rotating shafts 16 closer together, thereby clamping and fixing the automotive parts with the two clamping plates 17. Then, a lifting mechanism controls the two fixed plates 12 to descend synchronously, bringing the automotive parts down into the electric pool 1. When the gear 14 contacts the teeth 18, it rotates, further rotating the rotating shaft 16 and the clamping plate 17. This allows the automotive parts to rise and fall while rotating within the electric pool 1, thereby improving the electrical insulation of the parts. The swimming pool 1 has a rotatable connection between the rotating shaft 16 and the connecting plate 15. Therefore, the rotation of the rotating shaft 16 driven by the gear 14 will not cause the connecting plate 15 to rotate. At the same time, the gear 18 is in the lower half of the U-shaped seat 4. Therefore, when the gear 14 is in the upper half of the U-shaped seat 4, it will not rotate. This facilitates the removal or fixing of accessories. A support mechanism is provided in the middle of the swimming pool 1. The support mechanism allows personnel to place accessories on the swimming pool 1 for fixing or unfixing. The mechanics, parts and equipment in this device all 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.
[0024] Example 2: The solution in Example 1 will be further described below with reference to its specific working method. See the description below for details:
[0025] like Figure 1As shown, the lifting mechanism includes a motor 2, which is fixed to the electrophoresis pool 1 via a bracket. A screw 3 is fixed to the output end of the motor 2, and the bottom end of the screw 3 is rotatably mounted on the inner bottom wall of the electrophoresis pool 1. A movable block 13 is fixed to the side of the fixed plate 12, and the movable block 13 is threaded onto the surface of the screw 3. With the above structure, the operation of the motor 2 controls the rotation of the screw 3, which further realizes the lifting of the movable block 13 and the fixed plate 12, so that the two clamping plates 17 lift the accessories together in the electrophoresis pool 1, thereby improving the coverage of the accessories electrophoresis.
[0026] like Figure 1 , Figure 3 and Figure 4 As shown, several fixing rods 10 are fixedly connected to the two U-shaped seats 4 on their opposite sides, and one end of the fixing rod 10 is fixedly connected to the inner wall of the electric pool 1. The fixing rods 10 enhance the stability of the U-shaped seats 4 in the electric pool 1, thereby ensuring the stability of the lifting and sliding of the gear 14.
[0027] like Figure 1 , Figure 5 and Figure 6 As shown, the support mechanism includes two fixed sleeves 5, both of which are fixedly connected to the electric pool 1. Limiting blocks 6 are slidably installed inside each of the two fixed sleeves 5, with the top of the limiting blocks 6 flush with the upper surface of the fixed sleeve 5. A stop lever 7 is hinged to the bottom of each of the two limiting blocks 6. With this structure, before the automotive parts are fixed, the two clamping plates 17 are first raised above the fixed sleeves 5, then the two stop levers 7 are swung to a horizontal position and pushed backward, so that the stop levers 7 rest on the electric pool 1. Subsequently... The car parts are placed directly on the two levers 7, which provide support and eliminate the need for personnel to hold the parts continuously. Then, the parts are clamped and fixed by the two clamps 17. The two levers 7 are then pulled and swung downwards to ensure that the car parts descend normally into the electrophoresis pool 1 for electrophoresis treatment. After the parts have completed electrophoresis, they are raised above the fixing sleeve 5 and supported by the two levers 7 again. The clamps 17 are then released from their fixation, allowing personnel to remove the parts.
[0028] like Figure 1 and Figure 5 As shown, a connecting rod 8 is fixed between the bottom ends of the two stop levers 7. The connecting rod 8 prevents the stop levers 7 from falling out of the fixed sleeve 5 into the electric pool 1, thus ensuring the practicality of the two stop levers 7. At the same time, it also allows the two stop levers 7 to be used together without the need to push or slide them separately.
[0029] like Figure 2As shown, guide rods 9 are provided at both ends of the fixed plate 12, and the bottom end of the guide rods 9 is fixed to the inner bottom wall of the electric pool 1. The two ends of the fixed plate 12 are slidably sleeved on the two guide rods 9 respectively. The stability of the fixed plate 12 during lifting is ensured by the setting of the guide rods 9.
[0030] The working principle and usage process of this utility model are as follows: First, the two clamping plates 17 are raised above the fixed sleeve 5. Then, the two levers 7 are swung to a horizontal position and pushed backward so that the levers 7 rest on the electrophoresis pool 1. The car parts are then placed directly on the two levers 7 for support. Next, the two waterproof cylinders 11 are started simultaneously to clamp and fix the parts on the two levers 7 with the two clamping plates 17. Then, the synchronous operation of the two motors 2 drives the two fixed plates 12 to descend synchronously, thereby lowering the parts into the electrophoresis pool 1 for electrophoresis treatment. When the two gears 14 contact the corresponding teeth 18, they will rotate, further driving the rotating shaft 16 and the clamping plates 17 to rotate. This allows the car parts to rise and rotate simultaneously in the electrophoresis pool 1, thereby improving the electrophoresis coverage of the parts. After the parts have been electrophoresed, they are raised above the fixed sleeve 5, and then supported by the two levers 7. The clamping plates 17 are then released from their fixation and the parts can be removed. The operation is more convenient and flexible.
[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Content not described in detail in this specification belongs to the prior art known to those skilled in the art.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An electrophoretic coating mechanism for automotive parts, comprising an electrophoretic pool (1), characterized in that: The electric pool (1) is equipped with two opposing fixed rotating mechanisms, each including a fixed plate (12) and two opposing U-shaped seats (4). The electric pool (1) is equipped with a lifting mechanism for driving the fixed plate (12) to rise and fall. The bottom ends of the two U-shaped seats (4) are fixedly connected to the inner bottom wall of the electric pool (1). A gear (14) is slidably arranged between the two U-shaped seats (4). A number of teeth (18) are fixedly connected to the inner wall of one of the U-shaped seats (4). The gear (14) meshes with the teeth (18). A waterproof cylinder (11) is installed on the fixed plate (12). A connecting plate (15) is fixedly connected to the telescopic end of the waterproof cylinder (11). A rotating shaft (16) is provided through the middle of the gear (14). One end of the rotating shaft (16) is rotatably connected to the connecting plate (15). The other end of the rotating shaft (16) is fixedly connected to a clamping plate (17). A support mechanism is provided in the middle of the electric pool (1).
2. The electrophoretic coating mechanism for automotive parts according to claim 1, characterized in that: The lifting mechanism includes a motor (2), which is fixedly connected to the electric pool (1) by a bracket. The output end of the motor (2) is fixedly connected to a screw (3), and the bottom end of the screw (3) is rotatably set on the inner bottom wall of the electric pool (1). A moving block (13) is fixedly connected to the side of the fixed plate (12), and the moving block (13) is threaded onto the surface of the screw (3).
3. The electrophoretic coating mechanism for automotive parts according to claim 1, characterized in that: Several fixing rods (10) are fixed to the two U-shaped seats (4) on their opposite sides, and one end of the fixing rod (10) is fixed to the inner wall of the electric pool (1).
4. The electrophoretic coating mechanism for automotive parts according to claim 1, characterized in that: The support mechanism includes two fixed sleeves (5), both of which are fixedly connected to the electric pool (1). Limiting blocks (6) are slidably arranged inside both fixed sleeves (5), and the top of the limiting blocks (6) is flush with the upper surface of the fixed sleeves (5). The bottom of both limiting blocks (6) is hinged with a stop bar (7).
5. The electrophoretic coating mechanism for automotive parts according to claim 4, characterized in that: A connecting rod (8) is fixedly connected between the bottom ends of the two stops (7).
6. The electrophoretic coating mechanism for automotive parts according to claim 1, characterized in that: Both ends of the fixing plate (12) are provided with guide rods (9), and the bottom end of the guide rods (9) is fixed to the inner bottom wall of the electric pool (1). The two ends of the fixing plate (12) are respectively slidably sleeved on the two guide rods (9).