Electrophoretic coating tank for automobile parts

Abstract

The present invention relates to the technical field of electrophoretic coating of automobile parts, and specifically to an electrophoretic coating tank for automobile parts, comprising a coating tank body with an open top and a sealing cover fixed to the top of the coating tank body by screws, feed slots and discharge slots are correspondingly provided on both sides of the coating tank body, and workbenches are fixed at the feed slots and discharge slots on both sides of the coating tank body, a servo motor is fixed to the middle of the rear end face of the coating tank body, a coating assembly for automatic assembly line coating of parts is rotatably connected inside the coating tank body, wherein the coating assembly is transmission-connected to the servo motor; the coating assembly comprises two fixing rings symmetrically distributed front and back, and the present application can realize automatic assembly line coating of parts by designing the coating tank body and the coating assembly, and for parts that cannot use hangers, such as slat-type parts, the device of the present application has higher automated electrophoretic processing efficiency for such parts, thereby improving the electrophoretic processing quality.

Description

Technical Field

[0001] The invention relates to the technical field of electrophoresis of automobile parts, in particular to an electrophoresis tank for electrophoresis coating of automobile parts. Background Art

[0002] Modern automobile parts are mostly coated by electrophoretic coating. Electrophoretic coating is a coating method that uses an external electric field to make particles such as pigments and resins suspended in the electrophoretic liquid migrate in a directional manner and deposit on the surface of the substrate;

[0003] The invention with the announcement number CN115852456A specifically discloses an electrophoretic coating tank for automobile parts, which uses a straight suspension conveyor line to drive the movement of the hanger, and does not need to install a movable arc track, which is convenient to install and has a low equipment cost; the invention only requires the first transverse guide rail, the movable connecting assembly and the hanger to move up and down, which greatly reduces the load of the chain and is conducive to increasing the service life of the equipment;

[0004] Although the device can make the first cross rail, the movable connecting assembly and the hanger move up and down, greatly reducing the load of the chain, the hanger is a key component of the electrophoresis process of automobile parts, and it is responsible for the transportation, hanging and fixing of the parts. During use, the hanger is hooked on the holes of the parts or the area that can be supported by force. However, some automobile parts do not have corresponding holes and areas that can be supported by force on the surface, so the hanger cannot hang such parts. For this method, most of them generally adopt a cradle structure, put the parts together inside the cradle, and drive the parts to immerse in the electrophoresis liquid through the lifting of the cradle to realize the electrophoresis operation of the parts. However, this method has a slow processing efficiency when processing parts electrophoresis, and cannot realize the assembly line electrophoresis processing of automobile parts, which affects the efficiency of subsequent processing of parts.

[0005] Therefore, an electrophoretic tank for electrophoretic coating of automobile parts is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide an electrophoretic coating tank for automotive parts. The present application can realize the assembly line automatic coating operation of parts by designing the coating tank body and the coating assembly. For parts that cannot use hangers, such as slat-type parts, the device of the present application has a higher automated electrophoretic processing efficiency for such parts, improves the electrophoretic processing quality, and solves the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electrophoretic coating tank for automobile parts, comprising a coating tank body with an opening at the top and a sealing cover fixed to the top of the coating tank body by screw connection, a feed slot and a discharge slot are correspondingly opened on both sides of the coating tank body, and workbenches are fixed at the feed slot and the discharge slot on both sides of the coating tank body, a servo motor is fixed at the middle of the rear end face of the coating tank body, and a coating assembly for automatic assembly line coating of parts is rotatably connected inside the coating tank body, wherein the coating assembly is drivingly connected to the servo motor;

[0008] The coating assembly includes two fixed rings symmetrically distributed front and back, a support rod 1 is fixed in an equidistant manner in the inner ring of the fixed ring, an outer cylinder is arranged between the two fixed rings, one end of the support rod 1 is fixed to the outer cylinder, both ends of the outer cylinder are rotatably connected to the inner wall of the coating tank, an inner connecting rod is rotatably connected to the outer cylinder, an electromagnetic ring is embedded on the outside of the inner connecting rod, the inner connecting rod is fixed to the outer cylinder by magnetic attraction through the conduction of the electromagnetic ring, and the rear end of the inner connecting rod is fixed to the output shaft of the servo motor;

[0009] Rectangular boxes are distributed in an annular manner and at equal distances on the adjacent surfaces of the two fixing rings, and the adjacent surfaces of the two rectangular boxes are designed to be open-shaped structures.

[0010] Preferably, a rotating rod passes through the fixed ring and is rotatably connected, and one end of the rotating rod is fixed to the rectangular box, and the other end is fixedly connected to the magnetic wheel, a ball bearing is embedded in the inner wall of the rectangular box, and an arc plate is fixedly connected to the inner wall of the coating trough at the lower side of the discharge slot, and the arc plate corresponds to the position of the magnetic wheel.

[0011] Preferably, an electrode sheet 2 is vertically fixed to the lower end surface of the sealing cover at a position corresponding to the rear fixing ring, an annular groove is provided on the surface of the rear fixing ring, two groups of electrode sheets 1 with annular structures are symmetrically distributed in the annular groove, electrode sheet 2 is plugged into electrode sheet 1, a conductive ring connected to electrode sheet 1 is fixed in the annular groove, a rotating rod connected to the rectangular box is connected to the conductive ring, the rear rectangular box is made of conductive metal material, and the front rectangular box is made of insulating ceramic material.

[0012] Preferably, half-ring magnets are fixedly connected to the front and rear sides of the coating tank body at positions corresponding to the fixed ring, and electromagnet 1 and electromagnet 2 are fixedly connected to the two ends of the half-ring magnet at positions corresponding to the discharge slot and the feed slot, respectively.

[0013] Preferably, a stirring assembly is provided at the bottom of the coating trough body which is transmission-connected to the coating assembly, the stirring assembly includes a gear ring 1 fixedly connected to the outside of the fixed ring, a notch corresponding to the annular groove is provided on the gear ring on the rear fixed ring, a gear ring 2 is meshedly connected to the lower side of the fixed ring through the gear ring 1, a support rod 2 is fixed inside the gear ring 2, an axis rod is fixed to the other end of the support rod 2, and stirring blades are fixed at equal distances in a ring on the outside of the axis rod at a position between the two gear rings 2.

[0014] Preferably, a collecting box is screwed and fixed to the right side of the painting tank at the lower side of the workbench, a foam outlet is opened on the outside of the painting tank corresponding to the collecting box, and a toggle assembly is provided inside the painting tank corresponding to the foam outlet.

[0015] Preferably, a purge assembly is fixedly connected to the middle of the front end surface of the coating tank body, an air inlet pipe 1 is connected to the outside of the purge assembly, and an end of the air inlet pipe 1 away from the purge assembly is pneumatically transmitted to the toggle assembly.

[0016] Preferably, the purge assembly includes a sealing cylinder fixedly connected to the coating tank body, two connecting holes connected to the air inlet pipe are opened on the outside of the sealing cylinder, a reciprocating screw is rotatably connected inside the sealing cylinder, and the rear end of the reciprocating screw is fixedly connected to the inner connecting rod, and the external spiral transmission of the reciprocating screw is connected to the air plug plate.

[0017] Preferably, the toggle assembly includes a connecting shaft located inside the coating tank, and toggle plates made of rubber are fixed in an equidistant manner on the outer ring of the connecting shaft, and driving members are transmission-connected at both ends of the connecting shaft, and the driving members are fixed to the inner wall of the coating tank.

[0018] Preferably, the driving member comprises a sleeve fixed to the coating tank, one end of the connecting shaft extends to the sleeve for rotational connection, and blades are fixed to the outside of the connecting shaft located inside the sleeve in an annular manner at equal distances, an air inlet hole communicating with the first air inlet pipe is opened on the outside of the sleeve, an air outlet hole is opened on the outside of the sleeve at a position opposite to the air inlet hole, and the air outlet hole is connected to the second air inlet pipe;

[0019] A fixed plate is fixedly connected to the upper side of the discharge slot inside the coating tank, and the side of the fixed plate is designed with an inclined angle, and nozzles are fixed on the side of the fixed plate at equal distances, and an air duct connected to the second air inlet pipe is opened in the fixed plate.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present application can realize the automatic assembly line painting operation of parts by designing the painting tank and the painting assembly. For parts that cannot use hangers, such as lath-type parts, the present application device has a high automatic electrophoresis processing efficiency for such parts, thereby improving the electrophoresis processing quality;

[0022] 2. This application can centrally clean the foam generated on the surface of the electrophoresis liquid during use through the purge component and the passive component, reduce the impact of the foam on the subsequent electrophoresis process of the parts, and improve the electrophoresis quality of the parts;

[0023] 3. The present application can clean the electrophoretic liquid remaining on the surface of the parts after electrophoresis by designing a purge assembly, thereby avoiding the influence of subsequent electrophoretic liquid adhesion during the subsequent baking process, and by adding a heating component to the purge assembly, the purge assembly can also be used to dry the parts, thereby reducing the subsequent processing steps;

[0024] 4. The present application designs a stirring component, which is also driven to operate during the operation of the coating component to stir the electrophoretic fluid. On the one hand, the electrophoretic fluid in a flowing state can more fully contact the parts to achieve electrophoretic coating of the parts. On the other hand, the electrophoretic fluid in a flowing state can prevent the precipitation of internal substances. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is the overall structural view of the present invention;

[0027] Figure 2 It is a rear view of the overall structure of the present invention;

[0028] Figure 3 An exploded view of the coating assembly, the stirring assembly and the coating tank of the present invention;

[0029] Figure 4 For the present invention Figure 3 Bottom view of

[0030] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0031] Figure 6 It is a front view of the cross section of the coating tank of the present invention;

[0032] Figure 7 It is a structural view of the half-ring magnet, the feed slot and the discharge slot of the present invention;

[0033] Figure 8 It is a structural view of the fixing ring and the rectangular box of the present invention;

[0034] Fig. 9 It is a structural view of the air pipe 1, the air pipe 2, the fixing plate and the toggle assembly of the present invention;

[0035] Fig.10 A structural view of a driving member of the present invention;

[0036] Fig.11 It is a cross-sectional view of the sealing cylinder of the present invention.

[0037] Description of reference numerals:

[0038] 1. Coating tank; 11. Sealing cover; 111. Electrode sheet 1; 112. Electrode sheet 2; 113. Conductive ring; 12. Collection box; 121. Foam outlet; 13. Workbench; 14. Feed slot; 15. Discharge slot; 16. Servo motor;

[0039] 2. Purge assembly; 21. Air inlet pipe 1; 22. Air inlet pipe 2; 23. Driving member; 231. Sleeve; 232. Blade; 233. Air inlet hole; 234. Air outlet hole; 25. Connecting hole; 26. Sealing cylinder; 27. Reciprocating screw rod; 28. Air plug plate;

[0040] 3. Fixed plate; 31. Airway; 32. Nozzle; 4. Curved plate;

[0041] 5. Coating assembly; 51. Outer cylinder; 52. Inner connecting rod; 53. Support rod 1; 54. Fixed ring; 55. Rectangular box; 551. Ball; 56. Magnetic wheel; 561. Rotating rod; 57. Gear ring 1; 58. Half ring magnet; 581. Electromagnet 1; 582. Electromagnet 2;

[0042] 6. stirring assembly; 61. stirring blade; 62. shaft rod; 63. gear ring 2; 64. support rod 2;

[0043] 7. Toggle assembly; 71. Connecting shaft; 72. Toggle plate. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] See also Figures 1 to 11 , the present invention provides a technical solution:

[0046] An electrophoretic coating tank for automobile parts comprises a coating tank body 1 with an opening at the top and a sealing cover 11 fixed to the top of the coating tank body 1 by screw connection, a feed slot 14 and a discharge slot 15 are correspondingly provided on both sides of the coating tank body 1, and a workbench 13 is fixed at the feed slot 14 and the discharge slot 15 on both sides of the coating tank body 1. The present application adopts two methods for loading and unloading metal parts. The first method adopts a mechanical arm to realize the grasping loading and unloading of parts, and the other method is manual loading and unloading. When loading, the manual needs to observe the position of the workpiece fed into the coating tank body 1 through the feed slot 14, and the mechanical arm is programmed to perform A servo motor 16 is fixed in the middle of the rear end face of the coating tank body 1, and a coating component 5 for automatic assembly line coating of parts is rotatably connected inside the coating tank body 1, wherein the coating component 5 is transmission-connected to the servo motor 16; a pipe opening for replacing and filtering the electrophoretic liquid is also provided at the bottom of the rear end face of the coating tank body 1, which is connected to an external filtering device to filter and replace the internal electrophoretic liquid during use, or replace and replenish the internal electrophoretic liquid according to the working cycle, and the sealing cover 11 on the top is made of visible glass material, so that the user can see through the internal parts coating state through the sealing cover 11, and at the same time, it is convenient for the user to disassemble the sealing cover 11 for maintenance of the internal components.

[0047] The coating assembly 5 includes two fixing rings 54 symmetrically distributed front and back, and a support rod 53 is fixed in an annular shape at equal distances inside the fixing ring 54. An outer cylinder 51 is arranged between the two fixing rings 54, and one end of the support rod 53 is fixed to the outer cylinder 51. Both ends of the outer cylinder 51 are rotatably connected to the inner wall of the coating tank 1. An inner connecting rod 52 is rotatably connected inside the outer cylinder 51, and an electromagnetic ring is embedded outside the inner connecting rod 52. The inner connecting rod 52 is magnetically fixed to the outer cylinder 51 through the conduction of the electromagnetic ring, and the rear end of the inner connecting rod 52 is fixed to the output shaft of the servo motor 16.

[0048] Rectangular boxes 55 are distributed in an annular manner and at equal distances on the adjacent surfaces of the two fixing rings 54 , and the adjacent surfaces of the two rectangular boxes 55 are designed to be open-shaped structures.

[0049] Specifically, if Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7As shown, a rotating rod 561 passes through and is rotatably connected to the fixed ring 54, and one end of the rotating rod 561 is fixed to the rectangular box 55, and the other end is fixedly connected to the magnetic wheel 56. A ball 551 is embedded in the inner wall of the rectangular box 55. The design of the ball 551 inside the rectangular box 55 allows the ball 551 to directly contact the surface of one end of the part entering the rectangular box 55, avoiding direct contact between the inner wall of the rectangular box 55 and the surface of the part, reducing the electrophoresis blind area on the surface of the part. Secondly, the use of the ball 551 allows the part to slightly slide and displace inside the rectangular box 55 during rotation, further reducing the electrophoresis blind area. The arc plate 4 corresponds to the position of the magnetic wheel 56, and the front and rear sides of the coating tank 1 are fixedly connected to the corresponding positions of the fixed ring 54. The two ends of the semi-ring magnet 58 are fixedly connected to the corresponding positions of the discharge slot 15 and the feed slot 14 with electromagnet 1 581 and electromagnet 2 582 respectively.

[0050] By adopting the above technical solution, when working, the strip-shaped metal parts are taken and fed into the coating tank body 1 through the feed slot 14, wherein the two ends of the metal parts correspond to the openings of the rectangular boxes 55 on both sides, and then the controller connected to the live parts of the present application by the outside world controls the electromagnet 582 to conduct electricity and generate magnetic force. At this time, the electromagnet 582 corresponds to the magnetic wheel 56 connected to the two rectangular boxes 55 corresponding to the feed slot 14 through the rotating rod 561, and the adjacent surface of the electromagnet 582 and the magnetic wheel 56 is the conductive surface of the electromagnet 582. Under the action of the magnetic force generated by electricity, the two magnetic poles repel each other. Therefore, the magnetic wheels 56 on the left and right sides drive the rotating rod 561 under the action of the magnetic force to drive the rectangular box 55 to move towards each other, that is, to the two ends of the metal part. At this time, the two ends of the rectangular box 55 are wrapped around the two ends of the metal part through the opening and supported and fixed by the metal part. Then the controller controls the electromagnetic ring in the inner connecting rod 52 to conduct electricity to generate magnetic force and magnetically connect with the outer cylinder 51. At this time, the servo motor 16 drives the outer cylinder 51 through the inner connecting rod 52, and the support rod on the outer cylinder 51 1 53, drives the two fixed rings 54 and the magnetic wheel 56 and rectangular box 55 distributed on the fixed ring 54 and the metal parts to rotate clockwise and slowly move, and drives the metal parts to contact the electrophoretic liquid in the coating tank 1 during the clockwise downward movement to perform the electrophoretic coating operation. Here, the adjacent surfaces of the half-ring magnet 58 and the magnetic wheel 56 also repel each other. The purpose is that when the magnetic wheel 56 rotates away from the electromagnet 2 582, the repulsive force on the magnetic wheel 56 can be further maintained through the half-ring magnet 58, so as to keep the position of the rectangular box 55 stable. , to prevent the parts from falling off, and then when the electrophoresis of the parts is completed, the coating assembly 5 continues to be driven to rotate. When the parts after coating are located at the discharge slot 15, the robot arm or manual grasps the workpiece, and at this time, the electromagnet 581 is controlled to conduct electricity to generate magnetic force. The electromagnet 581 corresponds to the magnetic wheel 56, and the adjacent magnetic poles of the two attract each other. Therefore, the electromagnet 581 magnetically attracts the magnetic wheel 56 to move outward, driving the rotating rod 561 and the rectangular box 55 to move, and the rectangular box 55 is separated from the two ends of the parts. At this time, the parts can be unloaded normally;

[0051] Since the parts to be coated need to be immersed in the electrophoretic liquid for a certain period of time, the servo motor 16 is controlled by the controller to be driven to rotate intermittently or at intervals according to the immersion time.

[0052] Specifically, if Figure 8As shown, an electrode sheet 2 112 is vertically fixed to the lower end surface of the sealing cover 11 at a position corresponding to the rear fixing ring 54, an annular groove is provided on the surface of the rear fixing ring 54, two groups of annular electrode sheets 111 are symmetrically distributed in the annular groove, the electrode sheet 2 112 is plugged into the electrode sheet 1 111, a conductive ring 113 connected to the electrode sheet 1 111 is fixed in the annular groove, a rotating rod 561 connected to the rectangular box 55 is connected to the conductive ring 113, the rear rectangular box 55 is made of conductive metal material, and the front rectangular box 55 is made of insulating ceramic material.

[0053] By adopting the above technical solution, when working, the electrode piece 111 is connected to the external power supply, and then the electrode piece 112, the conductive ring 113, the rotating rod 561 and the rectangular box 55 conduct electricity to the metal parts, so that the metal parts are in contact with the electrophoretic liquid to achieve electrophoretic coating. The structure of the present application enables it to maintain a conductive state without affecting the rotation of the coating component 5. It is worth noting that the fixing ring 54 of the present application needs to use ceramic insulating material to avoid the overall conductive coating of the coating component 5, which affects the use.

[0054] Specifically, if Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a stirring assembly 6 which is transmission-connected to the coating assembly 5 is provided at the bottom of the coating tank body 1, and the stirring assembly 6 includes a gear ring 1 57 which is fixedly connected to the outside of the fixing ring 54, and a notch corresponding to the annular groove is provided on the gear ring on the rear fixing ring 54, and the notch is designed to avoid affecting the connection between the electrode sheet 1 111 and the electrode sheet 2 112, and in the specific use process, the gear ring 1 57 on the rear fixing ring 54 can also be cancelled, and the drive can also be achieved only by the engagement of the gear ring 1 57 on the front fixing ring 54 with the gear ring 2 63, the lower side of the fixing ring 54 is meshed with the gear ring 2 63 through the gear ring 1 57, a support rod 2 64 is fixed inside the gear ring 2 63, and a shaft rod 62 is fixed to the other end of the support rod 2 64, and stirring plates 61 are fixed at equal distances in a ring at the outside of the shaft rod 62 between the two gear rings 2 63.

[0055] By adopting the above-mentioned technical solution, the electrophoretic liquid needs to maintain a flowing state during use to prevent the internal substances from settling and affecting the use of the electrophoretic liquid. In view of this, the present application is based on the coating component 5 and meshes with the gear ring 1 57 and the gear ring 2 63. During the rotation of the coating component 5, the gear ring 1 57, the gear ring 2 63 and the support rod 2 64 drive the shaft 62 to rotate counterclockwise, and drive the stirring blade 61 outside the shaft 62 to rotate counterclockwise to stir the internal electrophoretic liquid and maintain the fluidity of the electrophoretic liquid. It is worth noting that the counterclockwise stirring of the stirring blade 61 here makes the surface of the electrophoretic liquid flow from left to right, and the collection box 12 for collecting the foam on the surface of the electrophoretic liquid is located on the right side of the coating tank 1. In this way, the foam can be gathered to the right side through the flow of water.

[0056] Specifically, if Fig. 9 and Fig.11 As shown, a purge assembly 2 is fixedly connected to the middle of the front end face of the coating tank body 1, and an air inlet pipe 21 is connected to the outside of the purge assembly 2, and the end of the air inlet pipe 21 away from the purge assembly 2 is pneumatically transmitted with the toggle assembly 7, and the purge assembly 2 includes a sealing cylinder 26 fixedly connected to the coating tank body 1, and two connecting holes 25 connected to the air inlet pipe 21 are opened on the outside of the sealing cylinder 26, and a reciprocating screw rod 27 is rotatably connected inside the sealing cylinder 26, and the rear end of the reciprocating screw rod 27 is fixedly connected to the inner connecting rod 52, and the external spiral transmission of the reciprocating screw rod 27 is connected to the air plug plate 28, and an air suction hole is opened on the outside of the sealing cylinder 26, and the air suction hole and the connecting hole 25 are built-in with a one-way valve for controlling the gas flow direction, and the outer surface of the air plug plate 28 is designed to fit the inner wall of the sealing cylinder 26.

[0057] By adopting the above technical scheme, the design of the purge component 2 of the present application has two functions. The first is to generate a designated gas to drive the toggle component 7 to operate, blow the foam on the surface of the electrophoretic liquid to the right to make it gather at the toggle component 7, and then synchronously drive the toggle component 7 to clean the foam. The second is to treat the parts after electrophoresis. A large amount of electrophoretic liquid will adhere to the surface of the parts, which is not conducive to the subsequent processing of the parts. Therefore, it is necessary to reduce and avoid the residue of the electrophoretic liquid by blowing on the surface of the parts. When it is used specifically, the servo motor 16 drives the inner connecting rod 52 to drive the reciprocating screw 27 to rotate, and then drives the air plug plate 28 connected to the reciprocating screw 27 in a spiral transmission to move inside the sealing tube 26, squeeze the internal air, and enter the air inlet pipe 21 through the connecting hole 25. The one-way valve is designed to ensure that the outside air can only enter the sealing tube 2 through the suction hole. 6 and discharged through the connecting hole 25. The sealing cylinder 26 in the present application is designed as a cylindrical structure. In fact, it is composed of two half cylinders connected by screws during use, which is convenient for disassembling the internal structure of the sealing cylinder 26 for maintenance and installation. In order to prevent the reciprocating screw 27 from rotating and driving the air plug plate 28 to rotate together during use, it is necessary to add a slide rail, a slider groove and other limiting structures on the inner wall of the sealing cylinder 26, or the sealing cylinder 26 and the air plug plate 28 can be designed as a rectangular structure. If the user needs to dry the parts, a heating component can also be installed at the front and rear ends of the inner wall of the sealing cylinder 26, such as a heating unit such as a heating plate or a heating wire. In this way, the air entering the air inlet pipe 21 is a high-temperature gas. However, since the purge assembly 2 is arranged inside the coating tank body 1, there is a certain requirement for the normal working temperature of the electrophoretic liquid. This method requires strict control of the temperature of the electrophoretic liquid, and a temperature detection system and a temperature regulation system need to be added.

[0058] Specifically, if Fig.10 and Fig.11 As shown, the right side of the coating tank body 1 is located at the lower side of the workbench 13 and is screwed and fixed with a collection box 12. A foam outlet 121 is provided on the outer side of the coating tank body 1 at a position corresponding to the collection box 12. A toggle assembly 7 is provided inside the coating tank body 1 at a position corresponding to the foam outlet 121. The toggle assembly 7 includes a connecting shaft 71 located inside the coating tank body 1, and a toggle plate 72 made of rubber is fixed at equal distances on the outer ring of the connecting shaft 71. The two ends of the connecting shaft 71 are transmission-connected with a driving member 23. The driving member 23 is fixed to the inner wall of the coating tank body 1, the driving member 23 includes a sleeve 231 fixed to the coating tank body 1, one end of the connecting shaft 71 extends to the sleeve 231 for rotational connection, and blades 232 are fixed to the outside of the connecting shaft 71 located inside the sleeve 231 in an annular manner and at equal distances, an air inlet hole 233 communicating with the air inlet pipe 1 21 is opened on the outside of the sleeve 231, an air outlet hole 234 is opened on the outside of the sleeve 231 at a position opposite to the air inlet hole 233, and the air outlet hole 234 is connected to the air inlet pipe 2 22;

[0059] A fixed plate 3 is fixedly connected to the coating tank 1 at the upper side of the discharge slot 15, and the side of the fixed plate 3 is designed with an inclined angle, and nozzles 32 are fixed to the side of the fixed plate 3 at equal distances, and an air duct 31 connected to the air inlet pipe 22 is opened in the fixed plate 3;

[0060] An arc plate 4 is fixedly connected to the inner wall of the coating tank 1 at a position below the discharge slot 15 .

[0061] By adopting the above technical solution, when the gas in the air inlet pipe 1 21 enters the sleeve 231 through the air inlet hole 233, the blowing blade 232 rotates inside the sleeve 231 under the blowing action of the high-pressure gas, and finally enters the air inlet pipe 2 22 through the air outlet hole 234. When the blade 232 rotates inside the sleeve 231, it drives the connecting shaft 71 connected to the blade 232 to rotate, and the connecting shaft 71 drives the toggle plate 72 to rotate counterclockwise, to toggle the floating foam gathered here, and to sweep the foam into the collection box 12 through the floating foam outlet 121;

[0062] The gas in the air inlet pipe 22 is transported to the air duct 31 in the fixed plate 3, and then sprayed through the nozzle 32 to blow and clean the surface of the part on the lower side after electrophoresis to avoid the adherence of the electrophoretic liquid, and the magnetic wheel 56 corresponding to the part that is rotated and displaced to this point contacts the arc surface of the arc plate 4, and the two fit together. When the fixed ring 54 continues to rotate clockwise with the part, since the magnetic wheel 56 contacts the arc surface of the arc plate 4, it can drive the magnetic wheel 56, the rotating rod 561 and the rectangular box 55 to rotate, and drive the part to rotate, so as to realize the comprehensive blowing and cleaning of the part surface by the nozzle 32, and avoid the existence of a blind spot for blowing.

[0063] Working principle: When working, take the strip-shaped metal parts and feed them into the coating tank body 1 through the feeding slot 14, where the two ends of the metal parts correspond to the openings of the rectangular boxes 55 on both sides, and then the controller connected to the live parts of the present application by the outside world controls the electromagnet 582 to conduct electricity and generate magnetic force. At this time, the electromagnet 582 corresponds to the magnetic wheel 56 connected by the rotating rod 561 with the two rectangular boxes 55 corresponding to the feeding slot 14. The adjacent surfaces of the electromagnet 582 and the magnetic wheel 56 are under the action of the magnetic force generated by the conduction of the electromagnet 582, and the magnetic poles of the two repel each other, so this When the magnetic wheels 56 on the left and right sides drive the rotating rod 561 under the action of magnetic force, the rectangular box 55 moves towards each other, that is, to the two ends of the metal part. At this time, the two ends of the rectangular box 55 are wrapped around the two ends of the metal part through the opening and supported and fixed by the metal part. Then the controller controls the electromagnetic ring in the inner connecting rod 52 to conduct electricity to generate magnetic force and connect with the outer cylinder 51 by magnetic attraction. At this time, the servo motor 16 drives the outer cylinder 51 through the inner connecting rod 52, and drives the two fixed rings 54 and the magnetic wheels 56 and the rectangular box distributed on the fixed ring 54 through the support rod 1 53 on the outer cylinder 51. 55 and the metal parts rotate clockwise and move slowly, driving the metal parts to move clockwise downward and contact the electrophoretic liquid in the coating tank 1 for electrophoretic coating operation. Here, the adjacent surfaces of the semi-ring magnet 58 and the magnetic wheel 56 also repel each other. The purpose is that when the magnetic wheel 56 rotates away from the electromagnet 2 582, the semi-ring magnet 58 can further maintain the repulsive force on the magnetic wheel 56, maintain the stability of the position of the rectangular box 55, and prevent the parts from falling off. Then, when the electrophoresis of the parts is completed, the coating assembly 5 continues to be driven to rotate. When the parts after coating are located at the discharge slot At 15, the robot arm or manual grasping of the workpiece, at this time, the electromagnet 581 is controlled to conduct electricity to generate magnetic force, the electromagnet 581 corresponds to the magnetic wheel 56, and the adjacent magnetic poles of the two attract each other, so the electromagnet 581 magnetically attracts the magnetic wheel 56 to move outward, driving the rotating rod 561 and the rectangular box 55 to move, and the rectangular box 55 is separated from the two ends of the part, and the part can be unloaded normally at this time; because the part coating needs to be kept immersed in the electrophoretic liquid for a certain period of time, the servo motor 16 here is controlled by the controller to drive the rotation intermittently or at intervals according to the immersion time;

[0064] When working, the electrode sheet 1 111 is connected to the external power supply, and then the electrode sheet 2 112, the conductive ring 113, the rotating rod 561 and the rectangular box 55 conduct electricity to the metal parts, so that the metal parts are in contact with the electrophoretic liquid to achieve electrophoretic coating. The structure of the present application enables it to maintain a conductive state without affecting the rotation of the coating component 5. It is worth noting that the fixing ring 54 of the present application needs to be made of ceramic insulating material to avoid the coating component 5 being conductively coated as a whole, which affects the use;

[0065] The electrophoretic liquid needs to be kept in a flowing state during use to prevent the internal substances from settling and affecting the use of the electrophoretic liquid. In view of this, the present application meshes the gear ring 1 57 with the gear ring 2 63 based on the coating component 5. During the rotation of the coating component 5, the gear ring 1 57, the gear ring 2 63 and the support rod 2 64 drive the shaft 62 to rotate counterclockwise, and drive the stirring blade 61 outside the shaft 62 to rotate counterclockwise to stir the internal electrophoretic liquid to maintain the fluidity of the electrophoretic liquid. It is worth noting that the counterclockwise stirring of the stirring blade 61 here makes the surface of the electrophoretic liquid flow from left to right, and the collection box 12 for collecting the foam on the surface of the electrophoretic liquid is located on the right side of the coating tank 1. In this way, the foam can be gathered to the right side through the flow of water.

[0066] The design of the purge component 2 in the present application has two functions. The first is to generate a gas that is specifically guided to drive the toggle component 7 to operate, blow the foam on the surface of the electrophoretic liquid to the right to make it gather at the toggle component 7, and then synchronously drive the toggle component 7 to clean the foam. The second is to clean the parts after electrophoresis. A large amount of electrophoretic liquid will adhere to the surface of the parts, which is not conducive to the subsequent processing of the parts. Therefore, it is necessary to reduce and avoid the residue of the electrophoretic liquid by blowing on the surface of the parts. When it is used specifically, the servo motor 16 drives the inner connecting rod 52 to drive the reciprocating screw 27 to rotate, and then drives the air plug plate 28 connected to the reciprocating screw 27 in a spiral transmission to move inside the sealing tube 26, squeeze the internal air, and enter the air inlet pipe 21 through the connecting hole 25. The design of the one-way valve is to ensure that the outside air can only enter the sealing tube 26 through the suction hole. The connection hole 25 is discharged. The sealing cylinder 26 in the present application is designed as a cylindrical structure. In fact, it is composed of two half cylinders connected by screws during use, which is convenient for disassembling the internal structure of the sealing cylinder 26 for maintenance and installation. In order to prevent the reciprocating screw 27 from rotating and driving the air plug plate 28 to rotate together during use, it is necessary to add a slide rail, a slider groove and other limiting structures on the inner wall of the sealing cylinder 26, or the sealing cylinder 26 and the air plug plate 28 can be designed as a rectangular structure. If the user needs to dry the parts, a heating component can also be installed at the front and rear ends of the inner wall of the sealing cylinder 26, such as a heating unit such as a heating plate or a heating wire. In this way, the air entering the air inlet pipe 21 is a high-temperature gas. However, since the purge assembly 2 is arranged inside the coating tank body 1, there is a certain requirement for the normal working temperature of the electrophoretic liquid. This method requires strict control of the temperature of the electrophoretic liquid, and a temperature detection system and a temperature regulation system need to be added.

[0067] When the gas in the air inlet pipe 1 21 enters the sleeve 231 through the air inlet hole 233, the high-pressure gas blows the blade 232 to rotate inside the sleeve 231, and finally enters the air inlet pipe 2 22 through the air outlet hole 234. When the blade 232 rotates inside the sleeve 231, it drives the connecting shaft 71 connected to the blade 232 to rotate, and the connecting shaft 71 drives the toggle plate 72 to rotate counterclockwise, to toggle the floating foam gathered here, and to sweep the foam into the collection box 12 through the floating foam outlet 121;

[0068] The gas in the air inlet pipe 22 is transported to the air duct 31 in the fixed plate 3, and then sprayed through the nozzle 32 to blow and clean the surface of the part on the lower side after electrophoresis to avoid the adherence of the electrophoretic liquid, and the magnetic wheel 56 corresponding to the part that is rotated and displaced to this point contacts the arc surface of the arc plate 4, and the two fit together. When the fixed ring 54 continues to rotate clockwise with the part, since the magnetic wheel 56 contacts the arc surface of the arc plate 4, it can drive the magnetic wheel 56, the rotating rod 561 and the rectangular box 55 to rotate, and drive the part to rotate, so as to realize the comprehensive blowing and cleaning of the part surface by the nozzle 32, and avoid the existence of a blind spot for blowing.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electrophoretic coating tank for automobile parts, comprising a coating tank body (1) with an opening at the top and a sealing cover (11) fixed to the top of the coating tank body (1) by screw connection, a feed slot (14) and a discharge slot (15) are correspondingly provided on both sides of the coating tank body (1), and workbenches (13) are fixed at the feed slot (14) and the discharge slot (15) on both sides of the coating tank body (1), characterized in that: A servo motor (16) is fixed to the middle of the rear end face of the coating tank (1), and a coating assembly (5) for automatic assembly line coating of parts is rotatably connected inside the coating tank (1), wherein the coating assembly (5) is drivingly connected to the servo motor (16); The coating assembly (5) comprises two fixing rings (54) symmetrically distributed front and back, a support rod (53) is fixed in an equidistant manner in an inner ring of the fixing ring (54), an outer cylinder (51) is arranged between the two fixing rings (54), one end of the support rod (53) is fixed to the outer cylinder (51), both ends of the outer cylinder (51) are rotatably connected to the inner wall of the coating tank (1), an inner connecting rod (52) is rotatably connected inside the outer cylinder (51), an electromagnetic ring is embedded on the outside of the inner connecting rod (52), the inner connecting rod (52) is magnetically fixed to the outer cylinder (51) through the conduction of the electromagnetic ring, and the rear end of the inner connecting rod (52) is fixed to the output shaft of the servo motor (16); Rectangular boxes (55) are distributed in an annular manner and at equal distances on adjacent surfaces of the two fixing rings (54), and adjacent surfaces of the two rectangular boxes (55) are designed to be open-shaped structures.

2. The electrophoretic coating tank for automobile parts according to claim 1, characterized in that: A rotating rod (561) passes through the fixing ring (54) and is rotatably connected thereto; one end of the rotating rod (561) is fixed to the rectangular box (55) and the other end is fixedly connected to the magnetic wheel (56); a ball bearing (551) is embedded in the inner wall of the rectangular box (55); an arc plate (4) is fixedly connected to the inner wall of the coating tank (1) at a position below the discharge slot (15); the arc plate (4) corresponds to the position of the magnetic wheel (56).

3. The electrophoretic coating tank for automobile parts according to claim 2, characterized in that: A second electrode sheet (112) is vertically fixed to a position corresponding to the lower end surface of the sealing cover (11) and the rear fixing ring (54); an annular groove is provided on the surface of the rear fixing ring (54); two groups of annular electrode sheets (111) are symmetrically distributed in the annular groove; the second electrode sheet (112) is plugged into the first electrode sheet (111); a conductive ring (113) connected to the first electrode sheet (111) is fixed in the annular groove; a rotating rod (561) connected to the rectangular box (55) is connected to the conductive ring (113); the rear rectangular box (55) is made of a conductive metal material; and the front rectangular box (55) is made of an insulating ceramic material.

4. The electrophoretic coating tank for automobile parts according to claim 3, characterized in that: Half-ring magnets (58) are fixedly connected at positions corresponding to the fixing ring (54) on both the front and rear sides of the coating tank body (1), and electromagnet 1 (581) and electromagnet 2 (582) are fixedly connected at positions corresponding to the discharge slot (15) and the feed slot (14) on both ends of the half-ring magnet (58).

5. The electrophoretic coating tank for automobile parts according to claim 4, characterized in that: A stirring assembly (6) drivingly connected to the coating assembly (5) is arranged at the bottom of the coating tank body (1), the stirring assembly (6) comprising a toothed ring (57) fixedly connected to the outside of the fixing ring (54), a notch corresponding to the annular groove is provided on the toothed ring on the rear side of the fixing ring (54), a toothed ring (63) meshingly connected to the lower side of the fixing ring (54) via the toothed ring (57), a support rod (64) is fixed inside the toothed ring (63), a shaft (62) is fixed at the other end of the support rod (64), and stirring blades (61) are fixed at equal distances in an annular manner on the outside of the shaft (62) at a position between the two toothed rings (63).

6. The electrophoretic coating tank for automobile parts according to claim 5, characterized in that: A collecting box (12) is screwed and fixed to the right side of the coating tank (1) at a position below the workbench (13); a foam outlet (121) is provided on the outside of the coating tank (1) at a position corresponding to the collecting box (12); and a toggle assembly (7) is provided inside the coating tank (1) at a position corresponding to the foam outlet (121).

7. The electrophoretic coating tank for automobile parts according to claim 6, characterized in that: A purge assembly (2) is fixedly connected to the middle of the front end surface of the coating tank (1); an air inlet pipe (21) is externally connected to the purge assembly (2); and an end of the air inlet pipe (21) away from the purge assembly (2) is pneumatically transmitted with the toggle assembly (7).

8. The electrophoretic coating tank for automobile parts according to claim 7, characterized in that: The purge assembly (2) comprises a sealing cylinder (26) fixedly connected to the coating tank body (1); the sealing cylinder (26) is provided with two connection holes (25) on the outside thereof and connected to the air inlet pipe (21); a reciprocating screw (27) is rotatably connected inside the sealing cylinder (26); the rear end of the reciprocating screw (27) is fixedly connected to the inner connecting rod (52); and the outside of the reciprocating screw (27) is spirally connected to an air plug plate (28).

9. The electrophoretic coating tank for automobile parts according to claim 8, characterized in that: The toggle assembly (7) comprises a connecting shaft (71) located inside the coating tank body (1), and toggle plates (72) made of rubber material are fixed in an annular manner at equal distances outside the connecting shaft (71), and driving members (23) are drivingly connected at both ends of the connecting shaft (71), and the driving member (23) is fixed to the inner wall of the coating tank body (1).

10. The electrophoretic coating tank for automobile parts according to claim 9, characterized in that: The driving member (23) comprises a sleeve (231) fixed to the coating tank (1), one end of the connecting shaft (71) extends to the sleeve (231) for rotational connection, and blades (232) are fixed to the outside of the connecting shaft (71) located inside the sleeve (231) in an annular manner at equal distances, an air inlet (233) communicating with the first air inlet pipe (21) is formed on the outside of the sleeve (231), an air outlet (234) is formed on the outside of the sleeve (231) at a position opposite to the air inlet (233), and the air outlet (234) is connected to the second air inlet pipe (22); A fixing plate (3) is fixedly connected to the coating tank body (1) at a position above the discharge slot (15), and the side of the fixing plate (3) is designed with an inclined angle, and nozzles (32) are fixed to the side of the fixing plate (3) at equal distances, and an air passage (31) is provided in the fixing plate (3) and is connected to the second air inlet pipe (22).

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