Electrophoretic paint treatment device for surfaces of automobile parts

Abstract

The invention discloses an electrophoretic paint treatment device for the surface of an automobile part, and relates to the technical field of automobile part machining, the electrophoretic paint treatment device comprises an electrophoresis box fixedly arranged on a base, and a fixing frame is fixedly arranged on the base and located above the electrophoresis box; a containing frame used for containing the automobile parts is arranged on the fixing frame in a left-right moving mode through a moving mechanism, a limiting piece used for limiting and fixing the automobile parts is fixedly arranged on the containing frame, and a lifting and rotating assembly used for driving the containing frame to ascend and descend and rotate at the same time is arranged in the moving mechanism. And the base is provided with a stirring mechanism which is used for stirring the paint liquid in the electrophoresis pool to enhance the fluidity of the paint liquid while the placing frame moves left and right. When the device is used, the problems that in the prior art, a workpiece is hoisted, lifted and soaked in paint liquid of an electrophoresis tank in a standing mode, in the electrophoretic coating curing process, the workpiece is soaked in the paint liquid in the standing mode, and the edge covering performance of the workpiece is poor due to the fact that the fluidity of the paint liquid is poor are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive part processing, and specifically, to an electrophoretic paint treatment device for the surface of automotive accessories. Background Art

[0002] As cars are increasingly recognized and used by people, they have now become the main means of transportation in modern society and families. The safety and quality of cars are the main property indicators related to cars. The anti-corrosion and aesthetics of car bodies have also received attention and emphasis. According to different car grades, the models and technical performance requirements of car paints are also different. The electrophoretic coating process for automotive accessories generally has four main processes: pre-treatment before electrophoretic coating, electrophoretic coating, post-electrophoretic cleaning, and drying of the electrophoretic coating film. Controlling the electrophoretic coating process conditions and the electrophoretic bath liquid is crucial during production.

[0003] Chinese Patent CN114855242 B discloses an electrophoretic coating device with a transition air-drying function. In the present invention, the installation frame carrying the workpiece moves towards the drying fan after the coating is completed. When approaching the drying fan, the installation frame can be driven to rotate through the cooperation of the limit rods at both ends of the workpiece and the spiral limit chute. The installation frame rotates while moving upward, which can not only air-dry both sides of the workpiece but also shorten the air-drying time of the workpiece, thereby improving the coating processing efficiency of the workpiece.

[0004] However, the above device still has the following problems when in use: The workpiece is hoisted and lifted, so that the workpiece is statically immersed in the paint liquid in the electrophoretic bath. During the electrophoretic coating curing process, the workpiece is statically immersed, and the fluidity of the paint liquid is poor, resulting in poor edge coverage performance of the workpiece.

[0005] Therefore, providing an electrophoretic paint treatment device for the surface of automotive accessories that can enable all angles of the accessory surface to fully contact the paint liquid during use and eliminate electrophoretic dead angles is an urgent problem to be solved by the present invention. Summary of the Invention

[0006] Aiming at the above technical problems, the purpose of the present invention is to overcome the problem in the prior art that the workpiece is hoisted and lifted, so that the workpiece is statically immersed in the paint liquid in the electrophoretic bath. During the electrophoretic coating curing process, the workpiece is statically immersed, and the fluidity of the paint liquid is poor, resulting in poor edge coverage performance of the workpiece. Thus, an electrophoretic paint treatment device for the surface of automotive accessories that can enable all angles of the accessory surface to fully contact the paint liquid during use and eliminate electrophoretic dead angles is provided.

[0007] To achieve the above object, the present invention provides an electrophoretic paint treatment device for the surface of automotive parts. The electrophoretic paint treatment device includes: an electrophoretic tank fixedly arranged on a base; a fixing frame fixedly arranged above the electrophoretic tank on the base; a placing rack that can move left and right through a moving mechanism on the fixing frame for placing automotive parts; a limiting member fixedly arranged on the placing rack for limiting and fixing the automotive parts; a lifting and rotating assembly is arranged in the moving mechanism to drive the placing rack to lift and rotate simultaneously; and a stirring mechanism is arranged on the base to stir the paint liquid in the electrophoretic tank while the placing rack moves left and right to enhance its fluidity.

[0008] Preferably, the electrophoretic paint treatment device includes: an electrophoretic tank fixedly arranged on a base; a fixing frame fixedly arranged above the electrophoretic tank on the base; a placing rack that can move left and right through a moving mechanism on the fixing frame for placing automotive parts; a limiting member fixedly arranged on the placing rack for limiting and fixing the automotive parts; a lifting and rotating assembly is arranged in the moving mechanism to drive the placing rack to lift and rotate simultaneously; and a stirring mechanism is arranged on the base to stir the paint liquid in the electrophoretic tank while the placing rack moves left and right to enhance its fluidity.

[0009] Preferably, the lifting and rotating assembly includes: a lifting member and a rotating member; wherein, the lifting member includes: a second screw rod and a second threaded block; A vertically arranged limiting groove is formed in the moving frame, a rotating motor with an output shaft vertically downward is fixedly arranged in the limiting groove, the output end of the rotating motor is fixedly provided with a second screw rod rotatably connected to the inner bottom wall of the limiting groove, a second threaded block is threadedly sleeved on the second screw rod, the placing rack is rotatably arranged on the second threaded block through a rotating shaft, and a rotating member for driving the second threaded block to rotate is arranged on the moving frame.

[0010] Preferably, the rotating member includes: a rack fixedly installed on the side wall of the moving frame, and a gear fixedly sleeved on the rotating shaft and meshing with the rack.

[0011] Preferably, the bottom surface of the rack is fixedly connected with a tooth block slidably matched with the side wall of the moving frame through a connecting spring, and a sliding groove for the tooth block to slide is formed on the side wall of the moving frame.

[0012] Preferably, the stirring mechanism includes: a linkage member and a stirring member; wherein, The stirring member includes: a rotating shaft rotatably penetrating through the electrophoretic tank, and a plurality of groups of stirring blades bent upward at intervals are fixedly arranged on the circumferential surface of the rotating shaft inside the electrophoretic tank, and a linkage member for driving the rotating shaft to rotate when the first threaded block moves left and right is arranged on the base.

[0013] Preferably, the linkage part includes: a driving shaft rotatably mounted on the base through a bearing, a turntable fixedly sleeved on the driving shaft, a connecting rod hingedly provided on the circumferential surface of the turntable near its circumferential edge, one end of the connecting rod is hingedly provided to the bottom surface of the first threaded block, and the driving shaft and the rotating shaft are connected by a transmission belt.

[0014] Preferably, the tooth ends of the gear and rack are rounded.

[0015] Preferably, the electrophoresis box is divided into a rust removal tank for removing rust from automobile parts and an electrophoresis tank for electrophoretic paint treatment by a partition.

[0016] Preferably, a plurality of sets of fans for drying the automobile accessories are fixedly provided at intervals on the top wall of the fixing rack and are located above the placement rack.

[0017] According to the above technical solution, the present invention provides an electrophoretic paint treatment device for the surface of automotive parts, which has the following beneficial effects when used: the rotation of the placement rack enables all angles of the accessory surface to fully contact the paint liquid, eliminating electrophoretic blind spots, and is particularly suitable for automotive parts with complex shapes; the stirring mechanism prevents the precipitation of pigment or resin particles in the paint liquid, maintains the uniform composition of the paint liquid, and avoids inconsistent coating thickness due to uneven concentration; the moving mechanism is linked with the stirring mechanism, and the paint liquid stirring is completed synchronously during the movement of the placement rack, without the need for additional stirring time, thereby shortening the single batch processing cycle.

[0018] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation methods; and the parts not involved in the present invention are the same as the existing technology or can be implemented by using the existing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following detailed description, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 A schematic diagram of the three-dimensional structure of an electrophoretic paint treatment device for automobile parts provided in a preferred embodiment Figure 1 ; Figure 2 A schematic diagram of the three-dimensional structure of an electrophoretic paint treatment device for automobile parts provided in a preferred embodiment Figure 2 ; Figure 3 A plan view of an electrophoretic paint treatment device for automobile parts provided in a preferred embodiment; Figure 4 yes Figure 3 Cross-sectional view of AA; Figure 5It is a schematic three-dimensional structure diagram of a moving mechanism of an electrophoretic paint treatment device for the surface of automotive parts provided in a preferred embodiment; Figure 6 It is a schematic three-dimensional structure diagram of a lifting and rotating assembly of an electrophoretic paint treatment device for the surface of automotive parts provided in a preferred embodiment; Figure 7 It is a schematic three-dimensional structure diagram of a rotating part of an electrophoretic paint treatment device for the surface of automotive parts provided in a preferred embodiment; Figure 8 It is a schematic three-dimensional structure diagram of a stirring mechanism of an electrophoretic paint treatment device for the surface of automotive parts provided in a preferred embodiment.

[0020] Description of reference numerals 100, base; 101, electrophoretic tank; 1011, rust removal tank; 1012, electrophoresis tank; 102, fixing frame; 103, placing rack; 104, limiting member; 105, fan; 200, moving mechanism; 201, mounting frame; 202, guiding groove; 203, first screw rod; 204, driving motor; 205, first threaded block; 206, hydraulic rod; 207, moving frame; 300, lifting and rotating assembly; 301, limiting groove; 302, rotating motor; 303, second screw rod; 304, second threaded block; 305, rotating shaft; 306, gear; 307, rack; 308, connecting spring; 309, tooth block; 310, sliding groove; 400, stirring mechanism; 401, driving shaft; 402, turntable; 403, connecting rod; 404, transmission belt; 405, rotating shaft; 406, stirring blade. Detailed implementation manners

[0021] The following details the specific implementation manners of the present invention with reference to the accompanying drawings. It should be understood that the specific implementation manners described herein are only for explaining and illustrating the present invention, and are not used to limit the present invention.

[0022] In the present invention, unless otherwise stated, the orientation words contained in terms such as "upper, lower, inner, outer" only represent the orientation of the term in its normal use state, or the common name understood by those skilled in the art, and should not be regarded as a limitation to the term.

[0023] Refer to Figures 1 - 8As shown in the figure, an electrophoretic paint treatment device for the surface of automotive parts, the electrophoretic paint treatment device includes: an electrophoretic tank 101 fixedly arranged on a base 100, a fixing frame 102 fixedly arranged above the electrophoretic tank 101 on the base 100, a placing rack 103 for placing automotive parts is arranged on the fixing frame 102 and can move left and right through a moving mechanism 200, a limiting member 104 for limiting and fixing the automotive parts is fixedly arranged on the placing rack 103, a lifting and rotating assembly 300 for driving the placing rack 103 to lift and rotate at the same time is arranged in the moving mechanism 200, and a stirring mechanism 400 for enhancing the fluidity by stirring the paint liquid in the electrophoretic tank 1012 while the placing rack 103 moves left and right is arranged on the base 100.

[0024] During use, the operator places the automotive parts on the placing rack 103, and firmly fixes the parts through the limiting member 104 to ensure that there is no displacement or dropping during subsequent movement. The moving mechanism 200 drives the placing rack 103 to move along the fixing frame 102 towards the electrophoretic tank 101 until it is completely directly above the electrophoretic tank 101. The placing rack 103 descends vertically, immersing the automotive parts completely into the paint liquid in the electrophoretic tank 101. During the descent, the placing rack 103 starts to rotate, enabling the surface of the parts to come into full contact with the paint liquid, avoiding electrophoretic blind spots. When the moving mechanism 200 drives the placing rack 103 to move left and right, the stirring mechanism 400 is triggered to stir the paint liquid, enhancing the fluidity of the paint liquid and ensuring the uniform distribution of the paint liquid components. The parts act as electrodes, forming an electric field with another electrode in the electrophoretic tank 101. The charged particles in the paint liquid are deposited on the surface of the parts under the action of the electric field, forming a uniform coating. The rotation of the placing rack 103 and the stirring of the paint liquid continue, further improving the uniformity and adhesion of the coating and reducing the influence of bubbles or impurities.

[0025] Refer to Figures 2 - 3 As shown in the figure, the moving mechanism 200 includes: a mounting frame 201 fixedly installed on the fixing frame 102, a horizontally arranged guide groove 202 is opened in the mounting frame 201, a first screw rod 203 is rotatably arranged in the guide groove 202, two groups of first threaded blocks 205 are arranged on the first screw rod 203 at intervals in a threaded manner, a hydraulic rod 206 is fixedly arranged on the bottom surface of each group of first threaded blocks 205, the output end of the hydraulic rod 206 is vertically downward and fixedly installed with a moving frame 207, and a driving motor 204 with a horizontally arranged output shaft and the top end fixedly connected to the guide groove 202 is fixedly arranged on the mounting frame 201. The placing rack 103 is driven by the lifting and rotating assembly 300 in the moving frame 207 to lift and rotate at the same time.

[0026] In the above solution, the driving motor 204 starts, driving the first screw rod 203 to rotate in the guiding groove 202. The rotation of the first screw rod 203 drives two groups of first threaded blocks 205 to move horizontally along the guiding groove 202. The first threaded blocks 205 drive the hydraulic rods 206 at the bottom to translate synchronously, realizing the left - right movement and positioning of the placement rack 103. The telescopic movement of the hydraulic rods 206 controls the vertical height of the moving rack 207, assisting the placement rack 103 to enter or leave the electrophoresis tank 101.

[0027] Referring to Figures 6 - 7 As shown, the lifting and rotating assembly 300 includes: a lifting member and a rotating member; wherein, the lifting member includes: a second screw rod 303 and a second threaded block 304; A vertically - arranged limiting groove 301 is formed in the moving rack 207. A rotating motor 302 with a vertically - downward output shaft is fixedly arranged in the limiting groove 301. The output end of the rotating motor 302 is fixedly provided with a second screw rod 303 rotatably connected to the inner bottom wall of the limiting groove 301. A second threaded block 304 is threadedly sleeved on the second screw rod 303. The placement rack 103 is rotatably provided on the second threaded block 304 through a rotating shaft 305. A rotating member for driving the second threaded block 304 to rotate is arranged on the moving rack 207. The rotating member includes: a rack 307 fixedly installed on the side wall of the moving rack 207, and a gear 306 fixedly sleeved on the rotating shaft 305 and meshing with the rack 307.

[0028] In the above solution, when the rotating motor 302 starts, it drives the second screw rod 303 to rotate in the limiting groove 301. The second threaded block 304 moves linearly along the second screw rod 303, that is, rises or falls. The second threaded block 304 drives the placement rack 103 to rise and fall synchronously through the rotating shaft 305. When the placement rack 103 moves with the moving rack 207, the gear 306 starts to mesh with the fixed rack 307. The gear 306 rolls on the rack 307, driving the rotating shaft 305 to rotate. The rotating shaft 305 drives the placement rack 103 to rotate synchronously, realizing the dynamic tumbling of the accessories during the electrophoresis process.

[0029] Referring to Figure 7 As shown, the bottom surface of the rack 307 is fixedly connected with a tooth block 309 slidably matched with the side wall of the moving rack 207 through a connecting spring 308. A sliding groove 310 for the tooth block 309 to slide is formed on the side wall of the moving rack 207.

[0030] In the above solution, when the gear 306 disengages from the rack 307, the gear 306 meshes with the tooth block 309. As the second threaded block 304 continues to move downward, the connecting spring 308 is stretched, enabling the gear 306 to continuously mesh with the tooth block 309. When the second threaded block 304 rises, the tooth block 309 is driven to move upward under the elastic force of the connecting spring 308, causing the gear 306 to mesh with the rack 307 again.

[0031] Reference Figure 8 As shown, the stirring mechanism 400 includes: a linkage member and a stirring member; wherein, The stirring member includes: a rotating shaft 405 that rotates and passes through the electrostatic pool 1012, and a plurality of groups of upward curved stirring blades 406 are fixedly provided at intervals on the circumferential surface of the rotating shaft 405 located in the electrostatic pool 1012, and a linkage member is provided on the base 100 to drive the rotating shaft 405 to rotate when the first threaded block 205 moves left and right.

[0032] In the above scheme, when the first threaded block 205 moves left and right in the device, the linkage on the base 100 is triggered and starts working. The linkage drives the rotating shaft 405 to rotate, and the upward curved stirring blade 406 on the rotating shaft 405 rotates accordingly to stir the electrophoretic paint in the electrophoretic tank 1012.

[0033] Reference Figure 8 As shown, the linkage part includes: a driving shaft 401 rotatably mounted on the base 100 through a bearing, a turntable 402 is fixedly sleeved on the driving shaft 401, a connecting rod 403 is hingedly provided on the circumferential surface of the turntable 402 near its circumferential edge, one end of the connecting rod 403 is hingedly set to the bottom surface of the first threaded block 205, and the driving shaft 401 and the rotating shaft 405 are connected by a transmission belt 404.

[0034] In the above scheme, the first threaded block 205 moves left and right, and the connecting rod 403 hinged on the bottom surface of the first threaded block 205 moves accordingly. The connecting rod 403 drives the turntable 402 to rotate. The turntable 402 is fixed on the drive shaft 401, and the drive shaft 401 rotates accordingly. The drive shaft 401 drives the rotating shaft 405 to rotate through the transmission belt 404, and the stirring blades 406 on the rotating shaft 405 stir the electrophoretic paint in the electrophoretic tank 1012.

[0035] Reference Figures 6 - 7 As shown, the tooth ends of the gear 306 and the rack 307 are rounded.

[0036] In the above scheme, when the gear 306 and the rack 307 are meshing for transmission, the rounded tooth end design enables the gear 306 and the rack 307 to enter and exit the meshing state more smoothly when in contact, and through the smooth transition of the rounded tooth end, stable transmission of power from the gear 306 to the rack 307 is achieved.

[0037] Reference Figures 1 - 4 As shown, the electrophoresis box 101 is divided into a rust removal pool 1011 for removing rust from automobile parts and an electrophoresis pool 1012 for electrophoretic paint treatment by a partition.

[0038] In the above solution, the electrophoresis tank 101 is divided by a partition into a rust removal tank 1011 for rust removal of automotive parts and an electrophoresis tank 1012 for electrophoresis paint treatment.

[0039] Referring to Figures 1 - 4 As shown, on the top wall of the fixing frame 102, multiple groups of fans 105 for drying automotive parts are fixedly arranged at intervals above the placing rack 103.

[0040] In the above solution, the automotive parts treated with electrophoresis paint are placed on the placing rack 103, and the fans 105 on the top wall of the fixing frame 102 are started to blow air downward onto the automotive parts below. The airflow generated by the fans 105 accelerates the drying process of the electrophoresis paint on the surface of the automotive parts. After drying is completed, the parts are taken out from the placing rack 103.

[0041] In summary, for an electrophoresis paint treatment device for the surface of automotive parts provided by the present invention, during use, the automotive parts to be treated are placed on the placing rack 103, and the parts are fixed by the limiting members 104 to ensure stable position during the treatment process. The driving motor 204 is started to drive the first screw rod 203 to rotate in the guiding groove 202. Two groups of first threaded blocks 205 on the first screw rod 203 move horizontally along the guiding groove 202. The first threaded blocks 205 drive the moving frame 207 and the placing rack 103 to move left and right through the hydraulic rods 206. The placing rack 103 moves above the rust removal tank 1011, and the hydraulic rods 206 extend to lower the placing rack 103 and the parts into the rust removal tank 1011. The parts are subjected to rust removal treatment in the rust removal tank 1011. After the treatment is completed, the hydraulic rods 206 contract to lift the parts above the rust removal tank 1011. The moving mechanism 200 moves the placing rack 103 above the electrophoresis tank 1012, and the hydraulic rods 206 extend again to lower the parts into the electrophoresis tank 1012. The rotating motor 302 is started to drive the second screw rod 303 to rotate, and the second threaded block 304 is threadedly driven on the second screw rod 303 to realize the lifting and lowering of the placing rack 103. At the same time, as the placing rack 103 moves, the gear 306 meshes with the rack 307 to drive the rotating shaft 305 to rotate, so that the parts rotate in the electrophoresis tank 1012. The parts are subjected to comprehensive electrophoresis paint treatment in the electrophoresis tank 1012. The left and right movement of the first threaded block 205 drives the turntable 402 to rotate through the connecting rod 403. The turntable 402 drives the drive shaft 401 to rotate. The drive shaft 401 drives the rotating shaft 405 to rotate through the transmission belt 404. The stirring blades 406 bent upward on the rotating shaft 405 stir the paint liquid in the electrophoresis tank 1012 to enhance the fluidity of the paint liquid and ensure uniform composition of the paint liquid. After the electrophoresis paint treatment is completed, the hydraulic rods 206 contract to lift the parts above the electrophoresis tank 1012. The moving mechanism 200 moves the placing rack 103 below the fans 105, and the fans 105 are started to dry the electrophoresis paint on the surface of the parts.

[0042] The preferred embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0043] In addition, it should be noted that, in the case of no conflict, the various specific technical features described in the above specific embodiments can be combined in any appropriate manner. To avoid unnecessary repetition, the present invention will not separately describe various possible combination manners.

[0044] Furthermore, any combination can be made among various different embodiments of the present invention, as long as it does not violate the idea of the present invention, and it should also be regarded as the content disclosed by the present invention.

Claims

1. An electrophoretic paint treatment device for the surface of automotive parts, characterized in that, The electrophoretic paint treatment device includes: an electrophoretic tank (101) fixedly arranged on a base (100), a fixing frame (102) fixedly arranged above the electrophoretic tank (101) on the base (100), a placing rack (103) which can move left and right through a moving mechanism (200) on the fixing frame (102) for placing automotive parts, a limiting member (104) fixedly arranged on the placing rack (103) for limiting and fixing the automotive parts, a lifting and rotating assembly (300) arranged in the moving mechanism (200) for driving the placing rack (103) to lift and rotate simultaneously, and a stirring mechanism (400) arranged on the base (100) for stirring the paint liquid in the electrophoretic tank (1012) to enhance its fluidity while the placing rack (103) moves left and right.

2. The electrophoretic paint treatment device for the surface of automotive parts according to claim 1, wherein, The moving mechanism (200) includes: a mounting rack (201) fixedly installed on the fixing frame (102), a horizontally arranged guiding groove (202) formed in the mounting rack (201), a first screw rod (203) rotatably arranged in the guiding groove (202), two groups of first threaded blocks (205) threadedly sleeved on the first screw rod (203) at intervals, a hydraulic rod (206) fixedly arranged on the bottom surface of each group of first threaded blocks (205), the output end of the hydraulic rod (206) is vertically downward and fixedly installed with a moving rack (207), and a driving motor (204) with a horizontally arranged output shaft and the top end fixedly connected to the guiding groove (202) is fixedly arranged on the mounting rack (201), and the placing rack (103) is driven by the lifting and rotating assembly (300) in the moving rack (207) to lift and rotate simultaneously.

3. The electrophoretic paint treatment device for the surface of an automotive part according to claim 2, wherein The lifting and rotating assembly (300) includes: a lifting member and a rotating member; wherein, the lifting member includes: a second screw rod (303) and a second threaded block (304); A vertically arranged limiting groove (301) is formed in the moving rack (207), a rotating motor (302) with a vertically downward output shaft is fixedly arranged in the limiting groove (301), the output end of the rotating motor (302) is fixedly provided with a second screw rod (303) rotatably connected to the inner bottom wall of the limiting groove (301), a second threaded block (304) is threadedly sleeved on the second screw rod (303), the placing rack (103) is rotatably arranged on the second threaded block (304) through a rotating shaft (305), and a rotating member for driving the second threaded block (304) to rotate is arranged on the moving rack (207).

4. The electrophoretic paint treatment device for the surface of an automotive part according to claim 3, characterized in that, The rotating member includes: a rack (307) fixedly installed on the side wall of the moving rack (207), and a gear (306) fixedly sleeved on the rotating shaft (305) and meshing with the rack (307).

5. An electrophoretic paint treatment device for the surface of automotive parts according to claim 4, characterized in that, The bottom surface of the rack (307) is fixedly connected with a tooth block (309) slidably matched with the side wall of the moving rack (207) through a connecting spring (308), and a sliding groove (310) for the tooth block (309) to slide is formed on the side wall of the moving rack (207).

6. The surface electrophoretic paint treatment device for automotive parts according to claim 2, wherein, The stirring mechanism (400) includes: a linkage member and a stirring member; wherein, The stirring member includes a rotating shaft (405) that rotatably penetrates the electrophoresis tank (1012). A plurality of groups of stirring blades (406) that bend upward are fixedly arranged at intervals on the circumferential surface of the rotating shaft (405) within the electrophoresis tank (1012). A linkage member is provided on the base (100) to drive the rotation of the rotating shaft (405) when the first threaded block (205) moves left and right.

7. The surface electrophoretic paint treatment device for an automotive part according to claim 6, characterized in that, The linkage member includes a drive shaft (401) rotatably mounted on the base (100) through a bearing. A turntable (402) is fixedly sleeved on the drive shaft (401). A connecting rod (403) is hingedly arranged on the circumferential surface of the turntable (402) near its circumferential edge. One end of the connecting rod (403) is hingedly arranged with the bottom surface of the first threaded block (205). The drive shaft (401) and the rotating shaft (405) are connected by a transmission belt (404).

8. An electrophoretic paint treatment device for the surface of automotive parts according to claim 4, characterized in that, The tooth ends of the gear (306) and the rack (307) are rounded.

9. The surface electrophoretic paint treatment device for an automotive part according to claim 1, characterized in that, The electrophoresis tank (101) is divided into a rust removal tank (1011) for rust removal of automotive parts and an electrophoresis tank (1012) for electrophoresis paint treatment by a partition.

10. A surface electrophoretic paint treatment device for automotive parts according to claim 1, characterized in that, A plurality of groups of fans (105) for drying automotive parts are fixedly arranged at intervals on the top wall of the fixing frame (102) above the placement rack (103).

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