Spraying device for motor carbon brush machining

Abstract

The invention relates to the technical field of motor carbon brush processing, in particular to a spraying device for motor carbon brush processing, which comprises a case and an operating table, and a turntable clamping component is arranged in the middle of the operating table. A feeding assembly, a polishing assembly and a spraying assembly are sequentially arranged along the rotating disc clamping assembly. The rotating disc clamping assembly comprises a fixed disc, a rotating disc is installed on the fixed disc, a plurality of clamping jaw seats are installed on the rotating disc, V-shaped clamping jaws are installed on the clamping jaw seats, and when the rotating disc rotates, the V-shaped clamping jaws can conduct clamping or loosening; the feeding assembly comprises a feeding box, a material guiding disc is rotationally installed in the feeding box, a plurality of clamping grooves are formed in the material guiding disc, a feeding hopper is arranged at the upper end of the feeding box, and a discharging opening is formed in the lower end of the feeding box. A large fluted disc is rotationally installed below the rotating disc, a small fluted disc is rotationally installed on the material guiding disc, a small gear is meshed with a first ring face wheel, a transmission shaft is vertically and fixedly installed at the lower end of the first ring face wheel, a second ring face wheel is installed at the bottom end of the transmission shaft, and the second ring face wheel is meshed with the large fluted disc.

Description

Technical Field

[0001] This invention belongs to the field of motor carbon brush technology, and specifically relates to a spraying device for processing motor carbon brushes. Background Technology

[0002] As a key component in motors for energy transmission, the surface properties of carbon brushes directly affect the motor's operating efficiency and lifespan. To improve the wear resistance, conductivity, and oxidation resistance of carbon brushes, specific functional coatings (such as conductive enhancement coatings and wear-resistant coatings) are usually applied to their surface. However, during processing and storage, an oxide layer (mainly composed of carbon oxides and metal oxides) easily forms on the surface of carbon brushes. This oxide layer is a typical high-resistance layer, which significantly increases the contact resistance between the carbon brush and the commutator, leading to increased current transmission losses, severe localized heating, and even motor failure. Simultaneously, dust and other impurities adhering to the carbon brush surface reduce coating adhesion, causing the coating to easily peel off and affecting the stability of carbon brush performance.

[0003] In existing technologies, the surface cleaning and coating of motor carbon brushes typically require manual operation: first, surface impurities and oxide layers are removed manually, and then the cleaned carbon brushes are transferred to a coating device for coating. This separate processing method has the following drawbacks:

[0004] Low production efficiency: When manually cleaning impurities and oxide layers from the carbon brush surface, the processing speed is limited, and each piece needs to be processed individually, which cannot meet the efficiency and stability requirements of large-scale industrial production.

[0005] Secondary pollution: During manual transfer, if protective measures are not in place, the sweat and oil of the operators may contaminate the cleaned carbon brush surface, which not only affects the coating quality, but may also increase rework due to rework. Summary of the Invention

[0006] The purpose of this invention is to provide a spraying device for processing carbon brushes for motors, so as to solve the technical problems mentioned in the background art.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is: a spraying device for processing carbon brushes for motors, including a chassis, an operating table installed in the middle of the chassis, a turntable clamping assembly provided on the operating table, and a feeding assembly, a grinding assembly and a spraying assembly arranged sequentially around the turntable clamping assembly according to the operation process.

[0008] The turntable clamping assembly includes a fixed plate, a rotating plate rotatably mounted below the fixed plate, a plurality of gripper seats mounted on the rotating plate, and two V-shaped grippers mounted on the gripper seats. When the rotating plate rotates, the V-shaped grippers can clamp and transport the motor carbon brush to the bottom of the spraying assembly, and the motor carbon brush can pass under the grinding assembly during the transport process.

[0009] The feeding assembly includes a feeding box, a guide plate is rotatably installed inside the feeding box, the guide plate is provided with several slots, the upper end of the feeding box is provided with a feeding hopper, the lower end of the feeding box is provided with a discharge port, when the guide plate rotates, the motor carbon brush can be inserted into the slots;

[0010] A large gear disk is rotatably mounted below the rotating disk, and a small gear disk is rotatably mounted on the guide disk. A first annular wheel meshes with the small gear. A drive shaft is mounted at the lower end of the first annular wheel, and a second annular wheel is mounted at the bottom end of the drive shaft. The second annular wheel meshes with the large gear disk, and the guide disk can rotate synchronously with the rotating disk.

[0011] The polishing assembly includes a mounting base, a drive shaft rotatably mounted on the mounting base, a drive gear mounted on the drive shaft, a polishing head mounted below the drive shaft, a dust suction pipe mounted on the mounting base, and a driven shaft mounted on the mounting base. The driven shaft passes through one side of the dust suction pipe and extends inward. A dust suction fan is mounted at the bottom of the driven shaft, and a driven gear is mounted at the top of the driven shaft. The drive gear meshes with the driven gear. When the polishing head rotates for polishing, the dust suction fan can absorb carbon brush debris.

[0012] Furthermore, a sleeve is installed below the fixed plate, the sleeve is fixed to the operating table, a sleeve is fitted on the sleeve, the sleeve is rotatably mounted on the operating table, a rotating disk is fixed at the top of the sleeve, the rotating disk is located below the fixed plate, and the fixed plate and the rotating disk are coaxial, the rotating disk can rotate below the fixed plate.

[0013] Furthermore, the gripper seat is provided with a rectangular slide, an opening is provided on one side of the rectangular slide, a movable rod is slidably installed inside the rectangular slide, one end of the movable rod is located inside the rectangular slide, and the other end extends out of the rectangular slide, and a linear through groove is provided on the upper surface of the rectangular slide, the linear through groove is connected to the rectangular slide.

[0014] Furthermore, one end of the moving rod is provided with a cylindrical shaft, which extends out from a linear through groove, and the other end of the moving rod is equipped with a roller. The surface of the fixed disk is provided with an irregular groove, and two peaks are provided on the irregular groove. The peaks are close to the edge of the fixed disk. The roller is installed in the irregular groove and can move along the irregular groove.

[0015] Furthermore, hinge posts are installed on both sides of the gripper seat, and the V-shaped gripper is hinged to the hinge posts. A straight groove is opened at the other end of the V-shaped gripper, and the straight groove is installed on the cylindrical shaft. A carbon brush holder is provided below the V-shaped gripper, and the carbon brush holder is installed on the edge of the rotating disk. A carbon brush groove is provided on the upper surface of the carbon brush holder.

[0016] Furthermore, the feeding assembly is located on one side of the irregular groove peak on the fixed plate. The feeding assembly includes a feeding frame, and the feeding box is fixed on the feeding frame. The inner wall of the slot is a vertical plane. When the motor carbon brush slides into the slot, it is in a vertical state, and it is also in a vertical state when it slides from the outlet onto the carbon brush holder below.

[0017] Furthermore, the grinding assembly includes a bracket, on which a transverse frame is mounted, transverse axis slide rails are mounted on both sides of the transverse frame, a translation plate is slidably mounted on the transverse axis slide rails, a transverse axis lead screw is mounted on the transverse frame, a transverse axis slider is mounted on the transverse axis lead screw, the transverse axis slider is fixedly connected to the translation plate, and a transverse axis motor is connected to one end of the transverse axis lead screw.

[0018] Furthermore, a vertical axis slide rail is installed on the translation plate, and the mounting base is slidably installed on the vertical axis slide rail. A vertical axis motor is installed on one side of the translation plate, and a pinion gear is connected to the output shaft of the vertical axis motor. A rack meshes with the pinion gear, and the rack is installed on the mounting base.

[0019] Furthermore, the dust collection pipe is provided with an air inlet and an air outlet. The air inlet is located below the dust collection fan, and a dust collection hood is connected to the air inlet. The dust collection hood is located on one side of the grinding head. The exhaust port is connected to a flexible dust collection pipe, and a dust collection box is connected to the end of the flexible dust collection pipe. The dust collection box is installed on the operating table.

[0020] Furthermore, the spraying assembly includes a mounting frame on which a solution tank and a nozzle are mounted. A water pipe is connected between the nozzle and the solution tank, and a control valve is installed on the water pipe.

[0021] Compared with the prior art, the beneficial effects of this invention are as follows: By placing several motor carbon brushes in the feed hopper, the motor carbon brushes slide along the feed hopper into the feeding box. A first motor drives a large gear disc and a rotating disc to rotate. The large gear disc drives a second annular wheel to rotate, which in turn drives a first annular wheel to rotate via a transmission shaft, thereby driving a guide disc to rotate. When the guide disc rotates, the motor carbon brushes in the feeding box are successively inserted into their circumferentially distributed slots, rotate with the guide disc to the discharge port, and then slide from the discharge port into the carbon brush holder below. Throughout the process, the carbon brushes remain vertical. Simultaneously, the rotating disc rotates, causing the gripper seat to rotate, causing the rollers on the gripper seat to roll along the irregular grooves of the fixed disc. When the rollers rotate to the peak of the irregular groove, the grippers open under the structural linkage; after the rollers leave the peak, the grippers reset and clamp the motor carbon brushes in the carbon brush holder.

[0022] When the rotating disk carrying the motor carbon brushes rotates to the side of the grinding assembly, the motor carbon brushes are clamped. At this time, the grinding motor drives the grinding head to grind and clean the oxide layer on the end face of the motor carbon brushes. During the grinding process, the meshing relationship between the driving gear and the driven gear drives the driven gear and driven shaft to rotate, which in turn drives the dust extraction fan to absorb the carbon brush debris generated during the grinding process. After the grinding is completed, the first motor drives the rotating disk to continue rotating to the side of the spraying assembly, and sprays the required solution onto the end face of the motor carbon brushes through the nozzle. Subsequently, the small fan is controlled to rotate to quickly dry the solution sprayed on the motor carbon brushes. After the spraying and drying are completed, the first motor drives the rotating disk to rotate the material pick-up port of the machine. At this time, the V-shaped grippers are released, and the motor carbon brushes are removed from the material pick-up port.

[0023] This invention utilizes a transmission structure to synchronize the feeding assembly and the turntable clamping assembly, thus automating the feeding and clamping process. Simultaneously, it ensures precise positioning of the motor carbon brushes during processing, maintaining consistent cleaning force and spraying angle, effectively improving product quality stability and meeting the efficiency and quality requirements of large-scale industrial production.

[0024] Simultaneously, the device uses a rotating disk to drive the grippers to rotate the motor carbon brushes, causing the carbon brushes to undergo a series of processes including grinding, dust removal, spraying, and drying. Throughout the process, the carbon brushes are minimally handled by humans, thus avoiding secondary contamination and further ensuring the processing quality of the product. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the internal structure of the chassis of the present invention;

[0027] Figure 3 This is a schematic diagram of the turntable clamping assembly structure of the present invention;

[0028] Figure 4 This is a schematic diagram of the installation relationship between the clamping seat and the gripper of the present invention;

[0029] Figure 5 This is a schematic diagram showing the positional relationship between the turntable clamping component and the feeding component of the present invention;

[0030] Figure 6 This is a schematic diagram of the gear transmission structure of the present invention;

[0031] Figure 7 This is a schematic diagram of the disassembled structure of the turntable clamping assembly and the feeding assembly of the present invention;

[0032] Figure 8 This is a schematic diagram of the main structure of the turntable clamping assembly and the feeding assembly of the present invention;

[0033] Figure 9 This is a schematic diagram showing the positional relationship between the turntable clamping component and the grinding component of the present invention;

[0034] Figure 10 This is a schematic diagram of the structure of the polishing component of the present invention;

[0035] Figure 11 This is a schematic diagram of the connection relationship between the dust suction pipe, the driven shaft, and the driven gear of the present invention;

[0036] Figure 12 This is a schematic diagram of the spraying assembly structure of the present invention;

[0037] Among them, 1-chassis, 100-operating table, 101-fixed plate, 102-rotating plate, 103-gripper seat, 104-rectangular slide rail, 105-moving rod, 106-linear through groove, 107-cylindrical shaft, 108-hinge column, 109-V-shaped gripper, 110-straight groove, 111-roller, 112-irregular groove, 113-carbon brush holder, 201-feeding rack, 202-feeding box, 203-feeding hopper, 204-guide plate, 205-slot, 206-discharge port, 207-gear frame, 208-large gear plate, 209-first annular wheel, 210-small gear plate, 211-drive shaft, 212-second annular wheel, 213-first motor, 30 1-Bracket, 302-Horizontal movement bracket, 303-Horizontal axis slide rail, 304-Translation plate, 305-Horizontal axis lead screw, 306-Horizontal axis slider, 307-Horizontal axis motor, 308-Vertical axis slide rail, 309-Mounting base, 310-Drive shaft, 311-Grinding head, 312-Grinding motor, 313-Dust suction pipe, 314-Driven shaft, 315-Dust suction fan, 316-Driven gear, 317-Drive gear, 318-Dust suction hood, 319-Flexible dust suction pipe, 320-Dust suction box, 321-Vertical axis motor, 322-Pin gear, 323-Rack, 401-Mounting bracket, 402-Solution tank, 403-Fixing strip, 404-Nozzle, 405-Small fan. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for illustration and explanation of the present invention and are not intended to limit the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention. In the embodiments, the components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application.

[0039] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to an electrical connection; they can refer to a hydraulic connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0040] See Figure 1-2 As shown, the present invention provides a spraying device for processing motor carbon brushes, including a housing 1. The housing 1 is a rectangular frame structure composed of a keel and sheet metal. Support legs and casters are fixedly installed at the four corners of the bottom of the housing 1. An operating table 100 is fixedly installed in the middle of the housing 1. A turntable clamping assembly is provided in the middle of the operating table 100. Around the turntable clamping assembly, a feeding assembly, a grinding assembly, and a spraying assembly are arranged sequentially according to the work process.

[0041] See Figure 3-4As shown, the aforementioned turntable clamping assembly includes a disc-shaped fixed disk 101. A sleeve is fixedly installed below the fixed disk 101, and the sleeve is fixedly installed at the center of the operating table 100, preventing the fixed disk 101 from rotating on the operating table 100. A sleeve is fitted onto the sleeve, and the sleeve is rotatably mounted on the operating table 100. A rotating disk 102 is fixedly installed at the top of the sleeve. The rotating disk 102 is located below the fixed disk 101, and the fixed disk 101 and the rotating disk 102 are coaxial, allowing the rotating disk 102 to rotate below the fixed disk 101. The diameter of the rotating disk 102 is larger than the diameter of the fixed disk 101. A plurality of gripper seats 103 are installed on the rotating disk 102, and the gripper seats 103 are fixedly installed at the edge of the rotating disk 102 and are evenly distributed in an array around the central axis of the rotating disk 102. A rectangular slide rail 104 is horizontally arranged on the gripper base 103. An opening is provided on one side of the rectangular slide rail 104. A matching moving rod 105 is slidably installed inside the rectangular slide rail 104. One end of the moving rod 105 is located inside the rectangular slide rail 104, and the other end of the moving rod 105 extends out of the rectangular slide rail 104. The moving rod 105 can move horizontally along the rectangular slide rail 104.

[0042] A linear through groove 106 is formed on the upper surface of the rectangular slide rail 104, and the linear through groove 106 communicates with the rectangular slide rail 104. A cylindrical shaft 107 is provided at one end of the moving rod 105 located inside the rectangular slide rail 104, and the cylindrical shaft 107 extends out of the linear through groove 106. Hinged posts 108 are vertically arranged on both sides of the linear through groove 106, and the hinged posts 108 are fixedly mounted on the gripper seat 103. A V-shaped gripper 109 is hinged to each hinged post 108. One end of the V-shaped gripper 109 is a chuck, and the clamping surface of the chuck matches the shape of the motor carbon brush. A straight groove 110 is formed at the other end of the V-shaped gripper 109, and the straight groove 110 of the V-shaped gripper 109 is mounted on the cylindrical shaft 107 on the moving rod 105.

[0043] A roller 111 is installed at one end of the movable rod 105 outside the rectangular slide rail 104. A shaped groove 112 is provided on the surface of the fixed disk 101. Two peaks are provided on the shaped groove 112. The peaks are close to the edge of the fixed disk 101 (the radius of the peaks is larger than the radii of other areas). The roller 111 is installed inside the shaped groove 112. The fixed disk 101 is stationary, while the rotating disk 102 can rotate around the center of the fixed disk 101. When the rotating disk 102 rotates, the gripper seat 103 will move in a circular motion around the center of the fixed disk 101 along with the rotating disk 102. The roller 111 will roll along the contour of the shaped groove 112. Due to the shape of the shaped groove 112, when the gripper seat 103 is moving in a circular motion, the movable rod 105 will move in a straight line.

[0044] When the roller 111 rolls to the peak of the irregular groove 112 (near the edge of the fixed disk 101), the distance from the roller 111 to the center is the largest, which will push the moving rod 105 to slide along the rectangular slide 104 away from the center of the fixed disk 101. At this time, the cylindrical shaft 107 moves outward, which will generate a thrust on the V-shaped gripper 109. Through the straight groove 110, the V-shaped gripper 109 is pushed to rotate around the hinge post 108 as the fulcrum, so that the grippers of the two V-shaped grippers 109 open to both sides (released state).

[0045] As roller 111 moves away from the peak and rolls along other areas of the irregular groove 112, the distance from roller 111 to the center decreases, and moving rod 105 slides along rectangular slide rail 104 toward the center of fixed plate 101. Cylindrical shaft 107 moves inward accordingly, pulling V-shaped grippers 109 to rotate in the opposite direction via straight groove 110, causing the chucks of the two V-shaped grippers 109 to move closer together (clamped state).

[0046] In addition, a carbon brush holder 113 is provided below each V-shaped gripper 109. The carbon brush holder 113 is fixedly installed on the edge of the rotating disk 102, and a carbon brush groove for receiving carbon brushes is provided on the upper surface of the carbon brush holder 113. The size of the carbon brush groove is larger than the size of the motor carbon brush. The motor carbon brush can slide from the feeding assembly into the carbon brush groove of the carbon brush holder 113, and the rotation of the rotating disk 102 drives the V-shaped gripper 109 to clamp the motor carbon brush.

[0047] See Figure 5-8 As shown, the feeding assembly is located on one side of one of the peaks of the irregular groove 112 on the fixed plate 101. When the motor carbon brushes slide down, the V-shaped grippers 109 at this location are open. The feeding assembly includes a feeding rack 201 fixedly mounted on the operating table 100, and a feeding box 202 fixedly mounted on the feeding rack 201. The inside of the feeding box 202 is a circular cavity. A funnel-shaped feed hopper 203 is connected to the upper end of the feeding box 202. Several motor carbon brushes are placed in the feed hopper 203. A guide plate 204 is rotatably mounted in the circular cavity of the feeding box 202. The guide plate 204 is provided with several slots 205 that match the motor carbon brushes, and the width and depth of the slots are slightly larger than the cross-sectional dimensions of the carbon brushes. The motor carbon brushes can be inserted into the slots 205, and each slot 205 can only accommodate a single motor carbon brush. A rectangular discharge port 206 is provided below the feeding box 202, and the discharge port 206 is located directly below the guide plate 204.

[0048] Several motor carbon brushes are placed inside the feed hopper 203 and slide down the inner wall of the feed hopper 203 under their own weight into the loading box 202. When the guide plate 204 rotates, the motor carbon brushes can be engaged in the slots 205 of the guide plate 204. As the guide plate 204 rotates, the motor carbon brushes are conveyed to the discharge port 206 and slide down from the discharge port 206 into the carbon brush holder 113 below.

[0049] It is important to note that the inner wall of the slot 205 is a vertical plane. When the motor carbon brush slides into the slot 205, it is in a vertical position, and it is also in a vertical position when it slides from the outlet 206 onto the carbon brush holder 113 below, ensuring that the end face of the motor carbon brush is vertically upward. This facilitates subsequent end face grinding and spraying.

[0050] See Figure 6 As shown, the feeding assembly and the turntable clamping assembly are equipped with a gear transmission structure, which enables the feeding and rotation of the motor carbon brushes to be synchronized.

[0051] Specifically, a large gear disc 208 is rotatably mounted below the operating table 100. The large gear disc 208 is fixedly mounted on the lower end of the sleeve and can rotate synchronously with the rotating disc 102. A gear frame 207 is fixedly mounted on the upper surface of the feeding rack 201. A first annular wheel 209 is rotatably mounted on the gear frame 207, and a small gear disc 210 meshes with one side of the first annular wheel 209. A rotating shaft is fixedly mounted in the middle of the small gear disc 210 and is fixedly connected to the guide disc 204. The small gear disc 210 can rotate synchronously with the guide disc 204. A drive shaft 211 is vertically fixedly mounted at the lower end of the first annular wheel 209. The drive shaft 211 is rotatably mounted on the gear frame 207 and passes through the operating table 100, extending below it. A second annular wheel 212 is mounted at the bottom end of the drive shaft 211 and meshes with the large gear disc 208.

[0052] It should be noted that the first annular wheel 209 and the second annular wheel 212 have the same structure, both including two parallel discs. Several circular shafts are fixed between the two discs, located at the edges of the discs and arranged in a circumferential array along the central axis of the discs. The small gear disc 210 includes a small disc with several columnar shafts located at its edges, arranged in a circumferential array along the central axis of the small disc. The circular shafts of the first annular wheel 209 and the columnar shafts of the small gear disc 210 are staggered and interlocked. During rotation, the columnar shafts of the small gear disc 210 sequentially mesh with different columnar shafts of the circular shafts of the first annular wheel 209, achieving meshing transmission. The large gear disk 208 includes a large gear disk, on which several cylindrical shafts are arranged in a circular array along the central axis of the large gear disk. The cylindrical shafts of the second annular wheel 212 are staggered with the cylindrical shafts of the large gear disk 208 and are interlocked. During rotation, the cylindrical shafts of the large gear disk 208 will mesh with different cylindrical shafts of the second annular wheel 212 in sequence to achieve meshing transmission.

[0053] Alternatively, the large gear 208, the first annular wheel 209, the small gear 210, and the second annular wheel 212 can be replaced with the first bevel gear, the second bevel gear, the third bevel gear, and the fourth bevel gear. Through the meshing relationship of the bevel gears, the feeding and rotational clamping of the motor carbon brushes can be synchronized.

[0054] A first motor 213 is connected below the large gear disk 208. When the first motor 213 drives the large gear disk 208 and the rotating disk 102 to rotate, the large gear disk 208 drives the second annular wheel 212 to rotate, which in turn drives the first annular wheel 209 to rotate via the transmission shaft 211, thereby driving the guide disk 204 to rotate. This achieves synchronous operation of the motor carbon brush feeding and rotational clamping.

[0055] When the motor carbon brush slides onto the carbon brush holder 113, the first motor 213 is controlled to drive the rotating disk 102 to rotate. During rotation, the V-shaped gripper 109 can hold the motor carbon brush. When rotated to the side of the grinding assembly, the motor carbon brush is in a clamped state. At this time, the oxide layer on its end face can be ground and cleaned by the grinding assembly.

[0056] See Figure 9-11 As shown, the grinding assembly includes a bracket 301, on which a horizontally fixed transverse frame 302 is mounted. Two horizontally fixed transverse axis slide rails 303 are mounted on both sides of the transverse frame 302. A translation plate 304 is slidably mounted on the transverse axis slide rails 303. A transverse axis lead screw 305 is mounted on the transverse frame 302 and is rotatable. A matching transverse axis slider 306 is mounted on the transverse axis lead screw 305. The transverse axis slider 306 is fixedly connected to the translation plate 304, and a transverse axis motor 307 is connected to one end of the transverse axis lead screw 305.

[0057] A vertical axis slide rail 308 is fixedly mounted on a translation plate 304, and a mounting base 309 is slidably mounted on the vertical axis slide rail 308. A vertical axis motor 321 is fixedly mounted on one side of the translation plate 304. A pinion gear 322 is connected to the output shaft of the vertical axis motor 321, and a rack 323 meshes with the pinion gear 322. The rack 323 is fixedly mounted on the mounting base 309. When the vertical axis motor 321 drives the pinion gear 322 to rotate, the mounting base 309 can be moved vertically along the vertical axis slide rail 308 via the rack 323.

[0058] A drive shaft 310 is rotatably mounted on the mounting base 309. A grinding head 311 is fixedly mounted below the drive shaft 310, located above the carbon brush holder 113. A grinding motor 312 is connected to the top of the drive shaft 310. Since carbon brush powder is generated during grinding, a suction pipe 313 is fixedly mounted on the mounting base 309, located on one side of the drive shaft 310 and the grinding head 311. A driven shaft 314 is mounted on the mounting base 309 and can rotate on it. The lower end of the driven shaft 314 passes through one side of the suction pipe 313 and extends inward. A suction fan 315 is fixedly mounted at the bottom of the driven shaft 314, located inside the suction pipe 313. A driven gear 316 is fixedly mounted on the upper end of the driven shaft 314. A drive gear 317 is fixedly mounted on the drive shaft 310, and the drive gear 317 meshes with the driven gear 316.

[0059] The suction pipe 313 is equipped with an air inlet and an air outlet. The air inlet is located below the suction fan 315, and a suction hood 318 is connected to the air inlet. The suction hood 318 is located on one side of the grinding head 311. The exhaust port of the suction pipe 313 is connected to a flexible suction pipe 319, and the end of the flexible suction pipe 319 is connected to a suction box 320, which is fixedly installed on the operating table 100.

[0060] When the grinding motor 312 drives the drive shaft 310 and the grinding head 311 to rotate and grind, the meshing relationship between the drive gear 317 and the driven gear 316 drives the driven gear 316 and the driven shaft 314 to rotate, which in turn drives the dust collection fan 315 to suck the carbon brush debris generated during the grinding process into the dust collection box 320.

[0061] See Figures 8 to 12 As shown, after the end face of the motor carbon brush is ground, the first motor 213 can be controlled to drive the rotating disk 102 to rotate, rotating the motor carbon brush to below the spraying assembly for spraying. The motor carbon brush is clamped on one side of the spraying assembly. The spraying assembly includes an L-shaped mounting bracket 401, which is mounted upside down on the operating table 100. A solution tank 402 is fixedly mounted on the top surface of the L-shaped mounting bracket 401, containing the solution required for spraying the motor carbon brush. A fixing strip 403 is fixedly mounted on the mounting bracket 401, and a nozzle 404 is mounted in the middle of the fixing strip 403. The nozzle 404 is located above the carbon brush holder 113, and a water pipe is connected between the nozzle 404 and the solution tank 402, with a control valve installed on the water pipe. Small fans 405 are mounted on both sides of the nozzle 404. After spraying, the solution sprayed on the motor carbon brush can be quickly dried by controlling the rotation of the small fans 405.

[0062] After the spray coating and air drying are completed, the first motor 213 drives the rotating disk 102 to rotate, positioning the motor carbon brush at its peak point. This peak point is located on one side of the material pick-up port on the front of the housing 1. The V-shaped gripper 109 is released when it rotates to the peak point on the side of the material pick-up port. The operator or automated equipment can then remove the motor carbon brush through the material pick-up port, completing the entire process of spray coating the motor carbon brush.

[0063] Example: The operator places several motor carbon brushes in the feed hopper 203, and the motor carbon brushes slide along the feed hopper 203 into the loading box 202. The first motor 213 is controlled to drive the large gear plate 208 and the rotating plate 102 to rotate. The large gear plate 208 drives the second annular wheel 212 to rotate, and drives the first annular wheel 209 to rotate through the transmission shaft 211, thereby driving the guide plate 204 to rotate.

[0064] As the guide plate 204 rotates, the motor carbon brushes in the feeding box 202 are sequentially inserted into the circumferentially distributed slots 205, and rotate with the guide plate 204 to the discharge port 206, then slide down from the discharge port 206 into the carbon brush holder 113 below. Throughout the process, the carbon brushes remain vertical. Simultaneously, the rotating disk 102 rotates, causing the gripper seat 103 to rotate, which in turn causes the rollers 111 on the gripper seat 103 to move along the irregular grooves 112 of the fixed disk 101. When the rollers 111 rotate to the peak of the irregular groove 112, the grippers open due to structural linkage; after the rollers 111 leave the peak, the grippers reset and clamp the motor carbon brushes in the carbon brush holder 113.

[0065] When the rotating disk 102, carrying the motor carbon brushes, rotates to the side of the grinding assembly, the motor carbon brushes are clamped. At this time, the grinding head 311, driven by the grinding motor 312, can grind and clean the oxide layer on the end face of the motor carbon brushes. During the grinding process, the meshing relationship between the driving gear 317 and the driven gear 316 drives the driven gear 316 and the driven shaft 314 to rotate, thereby driving the dust extraction fan 315 to absorb the carbon brush debris generated during the grinding process. After the grinding is completed, the first motor 213 is controlled to drive the rotating disk 102 to continue rotating to the side of the spraying assembly, and the required solution is sprayed onto the end face of the motor carbon brushes through the nozzle 404. Subsequently, the small fan 405 is controlled to rotate to quickly dry the solution sprayed on the motor carbon brushes. After the spraying and drying are completed, the first motor 213 is controlled to drive the rotating disk 102 to rotate the material pick-up port of the housing 1. At this time, the V-shaped gripper 109 is in the loosened state, and the motor carbon brushes are taken out through the material pick-up port.

[0066] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be primarily defined by the scope of the claims.

Claims

1. A spraying device for processing carbon brushes for electric motors, characterized in that: Includes a chassis, with an operating table installed in the middle of the chassis. The operating table is equipped with a turntable clamping assembly. Around the turntable clamping assembly, a feeding assembly, a grinding assembly, and a spraying assembly are arranged in sequence according to the work process. The turntable clamping assembly includes a fixed plate, a rotating plate rotatably mounted below the fixed plate, a plurality of gripper seats mounted on the rotating plate, and two V-shaped grippers mounted on the gripper seats. When the rotating plate rotates, the V-shaped grippers can clamp and transport the motor carbon brush to the bottom of the spraying assembly, and the motor carbon brush can pass under the grinding assembly during the transport process. The feeding assembly includes a feeding box, a guide plate is rotatably installed inside the feeding box, the guide plate is provided with several slots, the upper end of the feeding box is provided with a feeding hopper, and the lower end is provided with a discharge port. When the guide plate rotates, the motor carbon brush can be inserted into the slots. A large gear disk is rotatably mounted below the rotating disk, and a small gear disk is rotatably mounted on the guide disk. A first annular wheel meshes with the small gear. A drive shaft is mounted at the lower end of the first annular wheel, and a second annular wheel is mounted at the bottom end of the drive shaft. The second annular wheel meshes with the large gear disk, and the guide disk can rotate synchronously with the rotating disk. The polishing assembly includes a mounting base, a drive shaft rotatably mounted on the mounting base, a drive gear mounted on the drive shaft, a polishing head mounted below the drive shaft, a dust suction pipe mounted on the mounting base, and a driven shaft mounted on the mounting base. The driven shaft passes through one side of the dust suction pipe and extends inward. A dust suction fan is mounted at the bottom of the driven shaft, and a driven gear is mounted at the top of the driven shaft. The drive gear meshes with the driven gear. When the polishing head rotates for polishing, the dust suction fan can absorb carbon brush debris.

2. The spraying device for processing motor carbon brushes according to claim 1, characterized in that: A sleeve is installed below the fixed plate and is fixed to the operating table. A sleeve is fitted on the sleeve and is rotatably mounted on the operating table. A rotating disk is fixed at the top of the sleeve and is located below the fixed plate. The fixed plate and the rotating disk are coaxial and can rotate below the fixed plate.

3. The spraying device for processing motor carbon brushes according to claim 1, characterized in that: The gripper seat is provided with a rectangular slide rail, and an opening is provided on one side of the rectangular slide rail. A movable rod is slidably installed inside the rectangular slide rail, with one end of the movable rod located inside the rectangular slide rail and the other end extending out of the rectangular slide rail. A linear through groove is provided on the upper surface of the rectangular slide rail, and the linear through groove is connected to the rectangular slide rail.

4. The spraying device for processing motor carbon brushes according to claim 3, characterized in that: One end of the moving rod is provided with a cylindrical shaft, which extends out of a linear through groove. The other end of the moving rod is equipped with a roller. The surface of the fixed plate is provided with an irregular groove, and there are two peaks on the irregular groove. The peaks are close to the edge of the fixed plate. The roller is installed in the irregular groove and can move along the irregular groove.

5. The spraying device for processing motor carbon brushes according to claim 3, characterized in that: The gripper seat has hinge posts on both sides, and the V-shaped gripper is hinged to the hinge posts. The other end of the V-shaped gripper has a straight groove, which is installed on the cylindrical shaft. A carbon brush holder is provided below the V-shaped gripper and is installed on the edge of the rotating disk. A carbon brush groove is provided on the upper surface of the carbon brush holder.

6. The spraying device for processing motor carbon brushes according to claim 1, characterized in that: The feeding assembly is located on one side of the irregular groove peak on the fixed plate. The feeding assembly includes a feeding frame and a feeding box fixed on the feeding frame. The inner wall of the slot is a vertical plane. When the motor carbon brush slides into the slot, it is in a vertical state, and it is also in a vertical state when it slides from the outlet onto the carbon brush holder below.

7. The spraying device for processing motor carbon brushes according to claim 1, characterized in that: The grinding assembly includes a bracket, a transverse frame mounted on the bracket, transverse axis slide rails mounted on both sides of the transverse frame, a translation plate slidably mounted on the transverse axis slide rails, a transverse axis lead screw mounted on the transverse frame, a transverse axis slider mounted on the transverse axis lead screw, the transverse axis slider being fixedly connected to the translation plate, and a transverse axis motor connected to one end of the transverse axis lead screw.

8. The spraying device for processing motor carbon brushes according to claim 7, characterized in that: A vertical axis slide rail is installed on the translation plate, and the mounting base is slidably installed on the vertical axis slide rail. A vertical axis motor is installed on one side of the translation plate. A pinion gear is connected to the output shaft of the vertical axis motor, and a rack meshes with the pinion gear. The rack is installed on the mounting base.

9. A spraying device for processing motor carbon brushes according to claim 1, characterized in that: The dust collection pipe is equipped with an air inlet and an air outlet. The air inlet is located below the dust collection fan and is connected to a dust collection hood, which is located on one side of the grinding head. The air outlet is connected to a flexible dust collection pipe, and the end of the flexible dust collection pipe is connected to a dust collection box, which is installed on the operating table.

10. A spraying device for processing carbon brushes for motors according to claim 1, characterized in that: The spraying assembly includes a mounting frame, on which a solution tank and a nozzle are mounted. A water pipe connects the nozzle and the solution tank, and a control valve is installed on the water pipe.

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