A surface processing device for a special-shaped rare earth permanent magnet material

Abstract

The present invention relates to the technical field of grinding processing of rare earth permanent magnet materials, and particularly to a surface processing device for special-shaped rare earth permanent magnet materials, including a bottom plate, brackets, slide rails, a first sliding plate, etc. Two brackets are connected to the top of the bottom plate, slide rails are connected to the tops of the brackets, and the first sliding plates are slidably connected to the slide rails. In the present invention, the top of the special-shaped rare earth permanent magnet material can be ground by a grinding roller, a first grinding wheel and a second grinding wheel. The output shaft of the servo motor can drive the special-shaped rare earth permanent magnet material to rotate and turn the special-shaped rare earth permanent magnet material. The output shaft of the stepping motor can drive the special-shaped rare earth permanent magnet material to rotate and turn over the special-shaped rare earth permanent magnet material, ensuring that each surface of the special-shaped rare earth permanent magnet material can be fully ground, and automatically turning and turning over the special-shaped rare earth permanent magnet material, which can reduce manual intervention, thereby improving the processing efficiency and product quality.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding processing of rare earth permanent magnet materials, and particularly relates to a surface processing device for special-shaped rare earth permanent magnet materials. Background Art

[0002] Rare earth permanent magnet materials are a type of high-performance magnetic materials mainly composed of rare earth elements. Due to their excellent magnetic properties, they are widely used in fields such as electronics and automobiles. Rare earth permanent magnet materials have the characteristics of high remanence, high coercivity, and high magnetic energy product, and can significantly improve the efficiency and miniaturization degree of equipment.

[0003] Special-shaped rare earth permanent magnet materials sometimes need to be ground. However, for stepped rare earth permanent magnet materials, this complex geometric shape increases the difficulty of grinding processing. It is difficult to complete the grinding in one go during grinding, and a large amount of manual intervention is required. Workers need to frequently adjust the position of the special-shaped rare earth permanent magnet material to ensure that each surface can be fully ground, which affects the processing efficiency. Moreover, manual operation is prone to errors, affecting the quality of the final product. Summary of the Invention

[0004] In view of this, the present invention provides a surface processing device for special-shaped rare earth permanent magnet materials, which can overcome the disadvantages that it is necessary to frequently adjust the position of the special-shaped rare earth permanent magnet material to ensure that each surface can be fully ground, affecting the processing efficiency, and manual operation is prone to errors, affecting the quality of the final product.

[0005] The technical solution is as follows: A surface processing device for special-shaped rare earth permanent magnet materials, including a bottom plate, brackets, slide rails, a first slide plate, a screw motor, a driving motor, a grinding roller, a second slide plate, a first electric shaft, a first grinding wheel, a first bidirectional screw, a second electric shaft, a second grinding wheel, a second bidirectional screw, a feeding mechanism, and a fixing mechanism. Two brackets are connected to the top of the bottom plate. Slide rails are connected to the top of the brackets. The first slide plates are slidably connected to the slide rails. Screw motors are installed on the slide rails. The screws of the screw motors are threadedly connected to the first slide plates. Driving motors are installed on the first slide plates. A grinding roller is connected between the output shafts of the two driving motors. The second slide plates are slidably connected to the inside of the first slide plates. A first electric shaft is commonly installed on the two first slide plates. The first grinding wheel is slidably connected to the first electric shaft. A first bidirectional screw is rotatably connected to the first electric shaft. The first bidirectional screw is threadedly connected to the first grinding wheel. A second electric shaft is commonly installed on the two second slide plates. The second grinding wheel is slidably connected to the second electric shaft. A second bidirectional screw is rotatably connected to the second electric shaft. The second bidirectional screw is threadedly connected to the second grinding wheel. The feeding mechanism is used for placing the special-shaped rare earth permanent magnet material, and the fixing mechanism is used for fixing the second slide plate on the first slide plate.

[0006] As an improvement to the above solution, the feeding mechanism includes a support plate, a lifting plate, an arc-shaped guide rail, a rotating frame, a rotating plate, a servo motor, a feeding module, a contact plate, and a rotating component. Support plates are connected to both the front and rear sides of the top of the bottom plate. Lifting plates are slidably connected to the tops of the support plates. Arc-shaped guide rails are installed on both the lifting plates and the support plates. The arc-shaped guide rails on the lifting plates and the arc-shaped guide rails on the support plates combine to form a complete circular guide rail. A rotating frame is slidably connected to the two opposite arc-shaped guide rails. Rotating plates are rotatably connected to the rotating frames. Servo motors are installed on the rotating frames. The output shafts of the servo motors are connected to the rotating plates to drive the rotating plates to rotate. Removable feeding modules are connected to the rotating plates. Feeding grooves for placing special-shaped rare earth permanent magnets are opened on the feeding modules. Contact plates are connected to the rotating frames. During the leftward movement of the first slide plate, it will contact the contact plate and push the contact plate upward. The contact plate drives the rotating plate to move upward, lifting the rotating plate. The rotating component is used to control the rotation of the rotating plate to turn over the special-shaped rare earth permanent magnets.

[0007] As an improvement to the above solution, the rotating component includes an arc-shaped rack, a stepper motor, and a gear. Arc-shaped racks are connected to both the front and rear sides of the rotating frame. The arc-shaped racks on the two rotating frames combine to form a complete internal gear ring. Stepper motors are installed on the support plates. Gears are connected to the output shafts of the stepper motors. The gears mesh with the internal gear ring formed by the arc-shaped racks.

[0008] As an improvement to the above solution, the fixing mechanism includes a magnet, an electric push rod, and a clamping plate. Magnets are connected to the second slide plates. The magnets can be adsorbed on the slide rails. Electric push rods are installed on the tops of the first slide plates. Clamping plates are connected to the telescopic rods of the electric push rods. The clamping plates slide through the first slide plates. Bayonet openings are opened on the second slide plates. The clamping plates can be inserted into the bayonet openings to fix the second slide plates on the first slide plates.

[0009] As an improvement to the above solution, it further includes a vacuum cleaner, a hose, a cover body, a hard pipe, and a suction nozzle. Vacuum cleaners are installed on both the front and rear sides of the top of the bottom plate. Hoses are connected to the vacuum cleaners. Cover bodies are connected to the first slide plates. The cover bodies are located above the grinding rollers, the first grinding wheel, and the second grinding wheel. Hard pipes are connected to the tops of the cover bodies. The hard pipes are connected to the hoses. Suction nozzles are connected to the bottoms of the hard pipes. The suction nozzles penetrate through the tops of the cover bodies.

[0010] As an improvement to the above solution, it further includes a mounting plate and rollers. Mounting plates are connected to the first slide plates. Rollers are rotatably connected to the bottoms of the mounting plates. The rollers contact the tops of the slide rails.

[0011] As an improvement to the above solution, both the left and right sides of the contact plate are inclined.

[0012] As an improvement to the above solution, the side of the first slide plate facing the contact plate is an inclined surface.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] 1. The present invention can grind the top of the special-shaped rare earth permanent magnet material through the grinding roller, the first grinding wheel and the second grinding wheel. The output shaft of the servo motor can drive the special-shaped rare earth permanent magnet material to rotate and turn the special-shaped rare earth permanent magnet material. The output shaft of the stepping motor can drive the special-shaped rare earth permanent magnet material to rotate and turn over the special-shaped rare earth permanent magnet material, ensuring that each surface of the special-shaped rare earth permanent magnet material can be fully ground, and automatically turning and turning over the special-shaped rare earth permanent magnet material, which can reduce manual intervention, thereby improving the processing efficiency and product quality.

[0015] 2. The dust generated during grinding can be sucked by the vacuum cleaner, and the dust is sucked into the vacuum cleaner for dust removal to prevent the dust from adhering to the special-shaped rare earth permanent magnet material. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shows a three-dimensional structural schematic diagram of the present invention.

[0017] Figure 2 Shows a three-dimensional structural schematic diagram of the grinding roller and the second slide plate of the present invention.

[0018] Figure 3 Shows a three-dimensional structural schematic diagram of the drive motor, the first electric shaft, the first grinding wheel, the second electric shaft and the second grinding wheel of the present invention.

[0019] Figure 4 Shows a front view of the grinding roller, the first grinding wheel and the second grinding wheel of the present invention.

[0020] Figure 5 Shows a three-dimensional structural schematic diagram of the first electric shaft, the first grinding wheel and the first bidirectional lead screw of the present invention.

[0021] Figure 6 Shows a three-dimensional structural schematic diagram of the second electric shaft, the second grinding wheel and the second bidirectional lead screw of the present invention.

[0022] Figure 7 Shows a three-dimensional structural schematic diagram of the feeding mechanism of the present invention.

[0023] Figure 8 Shows a three-dimensional structural schematic diagram of the feeding module and the feeding groove of the present invention.

[0024] Figure 9 Shows a three-dimensional structural schematic diagram of the arc-shaped rack, the stepping motor and the gear of the present invention.

[0025] Figure 10 Shows a three-dimensional structural schematic diagram of the fixing mechanism of the present invention.

[0026] Figure 11 Shows a schematic three-dimensional structure diagram of the bayonet of the present invention.

[0027] Figure 12 Shows a schematic three-dimensional structure diagram of the vacuum cleaner and the cover body of the present invention.

[0028] Figure 13 Shows a schematic three-dimensional structure diagram of the hose, the cover body and the suction nozzle of the present invention.

[0029] Figure 14 Shows a schematic three-dimensional structure diagram of the mounting plate and the roller of the present invention.

[0030] Names of the reference numerals in the figure: 1, bottom plate; 2, bracket; 3, slide rail; 4, first slide plate; 5, lead screw motor; 6, drive motor; 7, grinding roller; 8, second slide plate; 9, first electric shaft; 10, first grinding wheel; 11, first bidirectional lead screw; 12, second electric shaft; 13, second grinding wheel; 14, second bidirectional lead screw; 151, support plate; 152, lifting plate; 153, arc guide rail; 154, rotating frame; 155, rotating plate; 156, servo motor; 157, feeding module; 158, feeding groove; 159, contact plate; 1510, arc rack; 1511, stepping motor; 1512, gear; 161, magnet; 162, electric push rod; 163, clamping plate; 164, bayonet; 171, vacuum cleaner; 172, hose; 173, cover body; 174, rigid pipe; 175, suction nozzle; 181, mounting plate; 182, roller. Detailed implementation manners

[0031] The above solution will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are for illustrating the present application and not for limiting the scope of the present application. The implementation conditions adopted in the embodiments can be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0032] Refer to Figures 1-11, a surface processing device for a special-shaped rare earth permanent magnet material, comprising a bottom plate 1, brackets 2, slide rails 3, a first slide plate 4, a lead screw motor 5, a driving motor 6, a grinding roller 7, a second slide plate 8, a first electric shaft 9, a first grinding wheel 10, a first bidirectional lead screw 11, a second electric shaft 12, a second grinding wheel 13, a second bidirectional lead screw 14, a feeding mechanism and a fixing mechanism. Brackets 2 are bolted to both the front and rear sides on the right side of the top of the bottom plate 1. Slide rails 3 are bolted to the tops of the brackets 2. The first slide plates 4 are slidably connected to the slide rails 3. The left side of the first slide plate 4 is an inclined surface. Lead screw motors 5 are bolted to the slide rails 3. The lead screws of the lead screw motors 5 are threadedly connected to the first slide plates 4. Driving motors 6 are bolted to the left parts of the first slide plates 4. A grinding roller 7 is connected between the output shafts of the two driving motors 6. The second slide plates 8 are slidably connected within the first slide plates 4. A first electric shaft 9 is commonly installed on the left parts of the two first slide plates 4. A pair of first grinding wheels 10 arranged in pairs are slidably connected to both the front and rear parts of the first electric shaft 9. The first bidirectional lead screws 11 are rotatably connected to both the front and rear parts of the first electric shaft 9. The first electric shaft 9 and the first bidirectional lead screws 11 are connected by a connecting block. The first bidirectional lead screws 11 are rotatably arranged within the connecting block. The two first bidirectional lead screws 11 are connected to each other. The two first bidirectional lead screws 11 are respectively threadedly connected to the two groups of first grinding wheels 10. The thread directions on the two first grinding wheels 10 in the same group are opposite. Therefore, the first bidirectional lead screw 11 can drive the two first grinding wheels 10 to move in opposite directions. Manually rotating the first bidirectional lead screw 11 can drive the first grinding wheels 10 to move, so as to adjust the distance between the two first grinding wheels 10 in the same group according to the size of the special-shaped rare earth permanent magnet material. Grinding sheets are provided on the outsides of the first grinding wheels 10. The first grinding wheels 10 grind the special-shaped rare earth permanent magnet material through the grinding sheets. Moreover, the grinding sheets on the first grinding wheels 10 can be disassembled and replaced, and appropriate grinding sheets can be selected according to the shape of the special-shaped rare earth permanent magnet material to adapt to special-shaped rare earth permanent magnet materials of different shapes. A second electric shaft 12 is commonly installed on the left parts of the two second slide plates 8. A pair of second grinding wheels 13 arranged in pairs are slidably connected to both the front and rear parts of the second electric shaft 12. The second bidirectional lead screws 14 are rotatably connected to both the front and rear parts of the second electric shaft 12. The second electric shaft 12 and the second bidirectional lead screws 14 are connected by a connecting block. The second bidirectional lead screws 14 are rotatably arranged within the connecting block. The two second bidirectional lead screws 14 are connected to each other. The two second bidirectional lead screws 14 are respectively threadedly connected to the two groups of second grinding wheels 13. The thread directions on the two second grinding wheels 13 in the same group are opposite. Therefore, the second bidirectional lead screw 14 can drive the two second grinding wheels 13 to move in opposite directions. Manually rotating the second bidirectional lead screw 14 can drive the second grinding wheels 13 to move, so as to adjust the distance between the two second grinding wheels 13 in the same group according to the size of the special-shaped rare earth permanent magnet material. Grinding sheets are provided on the outsides of the second grinding wheels 13. The second grinding wheels 13 grind the special-shaped rare earth permanent magnet material through the grinding sheets.Moreover, the grinding segments on the second grinding wheel 13 can be disassembled and replaced. Appropriate grinding segments can be selected according to the shape of the special-shaped rare earth permanent magnet material to adapt to different-shaped special-shaped rare earth permanent magnet materials. The feeding mechanism is used to place the special-shaped rare earth permanent magnet materials, and the fixing mechanism is used to fix the second slide plate 8 on the first slide plate 4.

[0033] Referring to Figure 1 、 Figure 7 、 Figure 8 and Figure 9 , the feeding mechanism includes a support plate 151, a lifting plate 152, an arc-shaped guide rail 153, a rotating frame 154, a rotating plate 155, a servo motor 156, a feeding module 157, a contact plate 159 and a rotating assembly. Both the front and rear sides on the left side of the top of the bottom plate 1 are bolted with a support plate 151. The top of the support plate 151 is slidably connected with a lifting plate 152. Arc-shaped guide rails 153 are bolted on the sides of the lifting plate 152 and the support plate 151 close to each other. The arc-shaped guide rail 153 on the lifting plate 152 and the arc-shaped guide rail 153 on the support plate 151 form a complete circular guide rail. A rotating frame 154 is slidably connected to the two opposite arc-shaped guide rails 153. The rotating frame 154 can rotate within the circular guide rail. Rotating plates 155 are rotatably connected to the sides of the two rotating frames 154 close to each other. The two rotating plates 155 are in contact with each other. Servo motors 156 are bolted on the sides of the two rotating frames 154 away from each other. The output shafts of the servo motors 156 are connected to the rotating plates 155. Two feeding modules 157 are bolted on the sides of the two rotating plates 155 close to each other. The two feeding modules 157 on the same rotating plate 155 are arranged front and back relative to each other. Two feeding slots 158 are opened on each feeding module 157. The two feeding slots 158 on the same feeding module 157 are arranged left and right relative to each other. The feeding module 157 can be disassembled and replaced. Appropriate feeding modules 157 can be selected according to the shape and size of the special-shaped rare earth permanent magnet material to grind special-shaped rare earth permanent magnet materials of different shapes and sizes. Two contact plates 159 are connected to the sides of the two rotating frames 154 away from each other. The two contact plates 159 on the same rotating frame 154 are arranged front and back relative to each other. The left and right sides of the contact plate 159 are inclined. During the process of the first slide plate 4 moving leftward, the inclined surface on the left side of the first slide plate 4 will contact the inclined position of the contact plate 159. The rotating assembly is used to control the rotation of the rotating plate 155 to turn over the special-shaped rare earth permanent magnet material.

[0034] Referring to Figure 7 and Figure 9, the rotating assembly includes an arc-shaped rack 1510, a stepping motor 1511 and a gear 1512. Arc-shaped racks 1510 are connected to both the front and rear sides of the rotating frame 154. The arc-shaped racks 1510 on the two rotating frames 154 form a complete internal gear ring. Stepping motors 1511 are installed on the mutually remote sides of the two support plates 151 by bolts. Gears 1512 are key-connected to the output shafts of the stepping motors 1511. The gears 1512 mesh with the internal gear ring formed by the arc-shaped racks 1510.

[0035] Refer to Figure 10 and Figure 11 , the fixing mechanism includes a magnet 161, an electric push rod 162 and a clamping plate 163. Magnets 161 are connected to the right sides of the second sliding plates 8. The right sides of the magnets 161 are in contact with the right sides of the sliding rails 3. The positions where the sliding rails 3 are in contact with the magnets 161 are made of magnetic materials, so that the magnets 161 can be adsorbed on the sliding rails 3. Electric push rods 162 are installed on the top right sides of the first sliding plates 4 by bolts. The upper ends of the telescopic rods of the electric push rods 162 are connected to clamping plates 163. The clamping plates 163 slide through the first sliding plates 4. Notches 164 are formed in the right parts of the second sliding plates 8. The clamping plates 163 are located in the notches 164.

[0036] The staff pushes the upper rotating frame 154 upward, driving the upper rotating plate 155 to move upward. Then, the special-shaped rare earth permanent magnet material is placed into the lower feeding groove 158 (the state where the special-shaped rare earth permanent magnet material is placed in the lower feeding groove 158 is shown in Figure 8As shown (in [figure number]), slowly release the upper rotating frame 154, and the upper rotating plate 155 moves downward under the action of its own gravity. The two rotating plates 155 come into contact again. At the same time, the special-shaped rare earth permanent magnet material will enter the upper feeding groove 158. Subsequently, the staff controls the lead screw motor 5 to drive the first slide plate 4 to move leftward. The first slide plate 4 drives the grinding roller 7 and the first grinding wheel 10 to move leftward. At this time, the clamping plate 163 is inserted into the bayonet 164. The second slide plate 8 is fixed on the first slide plate 4, so the second slide plate 8 will move leftward together with the first slide plate 4. The second slide plate 8 drives the second grinding wheel 13 to move leftward. When the inclined surface on the left side of the first slide plate 4 contacts the inclined position of the upper contact plate 159, the first slide plate 4 will push the upper contact plate 159 upward. The upper contact plate 159 drives the upper rotating frame 154 to move upward. The upper rotating frame 154 drives the upper rotating plate 155 to move upward, lifting the upper rotating plate 155 so that the grinding roller 7, the first grinding wheel 10, and the second grinding wheel 13 can grind the special-shaped rare earth permanent magnet material. The grinding roller 7 can grind the top of the special-shaped rare earth permanent magnet material. The first grinding wheel 10 can grind the front and back sides of the special-shaped rare earth permanent magnet material. The second grinding wheel 13 can grind the front and back sides at the step of the special-shaped rare earth permanent magnet material. After grinding is completed, control the lead screw motor 5 to drive the first slide plate 4 to move rightward, driving the grinding roller 7, the first grinding wheel 10, and the second grinding wheel 13 to move rightward and reset. The first slide plate 4 no longer pushes the upper contact plate 159, and the upper rotating plate 155 moves downward under the action of its own gravity. Then control the output shaft of the servo motor 156 to rotate 90 degrees, driving the rotating plate 155 to rotate 90 degrees. The rotating plate 155 drives the special-shaped rare earth permanent magnet material to rotate 90 degrees, turning the special-shaped rare earth permanent magnet material so that the first grinding wheel 10 can grind the left and right sides of the special-shaped rare earth permanent magnet material, and the second grinding wheel 13 can grind the left and right sides at the step of the special-shaped rare earth permanent magnet material. Control the output shaft of the stepping motor 1511 to rotate, driving the gear 1512 to rotate. The gear 1512 drives the internal gear ring composed of the arc-shaped rack 1510 to rotate. The internal gear ring composed of the arc-shaped rack 1510 drives the rotating frame 154 to rotate. The rotating frame 154 drives the rotating plate 155 to rotate. The rotating plate 155 drives the special-shaped rare earth permanent magnet material to rotate, turning over the special-shaped rare earth permanent magnet material so that the grinding roller 7, the first grinding wheel 10, and the second grinding wheel 13 can grind the other side of the special-shaped rare earth permanent magnet material, ensuring that each surface of the special-shaped rare earth permanent magnet material can be fully ground, and automatically turning and turning over the special-shaped rare earth permanent magnet material can reduce manual intervention, thereby improving the processing efficiency and product quality. After the special-shaped rare earth permanent magnet material is turned over, the part without a step on the special-shaped rare earth permanent magnet material faces upward, and the part without a step does not need to be ground by the second grinding wheel 13. At this time, the staff can control the telescopic rod of the electric push rod 162 to extend, driving the clamping plate 163 to move upward.Remove the pallet 163 from the bayonet 164, thereby releasing the second slide plate 8 from the first slide plate 4. The magnet 161 is adsorbed on the slide rail 3 to restrict the movement of the second slide plate 8. Therefore, the second slide plate 8 will not move together with the first slide plate 4, and the second grinding wheel 13 will not move together with the first slide plate 4 either.

[0037] Referring to Figure 12 and Figure 13 , it further includes a vacuum cleaner 171, a hose 172, a cover 173, a hard pipe 174 and a suction nozzle 175. The vacuum cleaners 171 are installed on the front and rear sides of the top of the base plate 1 by bolts. Both vacuum cleaners 171 are located between the two brackets 2. The front and rear sides of the upper left part of the vacuum cleaner 171 are connected with hoses 172. The cover 173 is connected to one side of the two first slide plates 4 close to each other by bolts. The cover 173 is located above the grinding roller 7, the first grinding wheel 10 and the second grinding wheel 13. The front and rear sides of the top of the cover 173 are connected with hard pipes 174. The right end of the hard pipe 174 is connected to the left end of the hose 172. Three suction nozzles 175 are evenly spaced and connected to the bottom of the hard pipe 174. The suction nozzles 175 penetrate the top of the cover 173.

[0038] When the first slide plate 4 moves to the left, it will drive the cover 173 to move to the left. The cover 173 drives the hard pipe 174 and the suction nozzle 175 to move to the left. When grinding the special-shaped rare earth permanent magnet material, start the vacuum cleaner 171. The suction nozzle 175 can suck the dust generated during grinding. The dust enters the vacuum cleaner 171 through the hard pipe 174 and the hose 172 for dust removal, avoiding the dust from adhering to the special-shaped rare earth permanent magnet material.

[0039] Referring to Figure 14 , it further includes a mounting plate 181 and rollers 182. The mounting plates 181 are connected to the upper part of the first slide plate 4 by bolts. The rollers 182 are evenly spaced and rotatably connected to the bottom of the mounting plate 181. The rollers 182 are in contact with the top of the slide rail 3.

[0040] When the first slide plate 4 moves, it will drive the mounting plate 181 and the rollers 182 to move. The rollers 182 roll on the top of the slide rail 3, reducing the friction between the first slide plate 4 and the slide rail 3 and avoiding wear of the first slide plate 4 and the slide rail 3.

[0041] The above are only examples of the present invention and are not used to limit the present invention. All equivalent replacements made within the principle of the present invention shall be included in the protection scope of the present invention. The content not elaborated in detail in the present invention belongs to the known prior art of those skilled in the art.

Claims

1. A surface processing device for a special-shaped rare earth permanent magnetic material, comprising a bottom plate (1) and a bracket (2), wherein the top of the bottom plate (1) is connected to two brackets (2), wherein: The bracket (2) further comprises a slide rail (3), a first slide plate (4), a screw motor (5), a drive motor (6), a grinding roller (7), a second slide plate (8), a first electric shaft (9), a first grinding wheel (10), a first bidirectional screw rod (11), a second electric shaft (12), a second grinding wheel (13), a second bidirectional screw rod (14), a material discharge mechanism and a fixing mechanism. The top of the bracket (2) is connected to the slide rail (3), the slide rail (3) is slidably connected to the first slide plate (4), the slide rail (3) is mounted with a screw motor (5), the screw rod of the screw motor (5) and the first slide plate (4) are connected by threads, the first slide plate (4) is mounted with a drive motor (6), the output shafts of the two drive motors (6) are connected to the grinding roller (7), and the first slide plate (4) is slidably connected to the first slide plate (4). A second slide plate (8) is connected, a first electric shaft (9) is commonly installed on the two first slide plates (4), a first grinding wheel (10) is slidably connected to the first electric shaft (9), a first bidirectional screw rod (11) is rotatably connected to the first electric shaft (9), the first bidirectional screw rod (11) and the first grinding wheel (10) are connected via threads, a second electric shaft (12) is commonly installed on the two second slide plates (8), a second grinding wheel (13) is slidably connected to the second electric shaft (12), a second bidirectional screw rod (14) is rotatably connected to the second electric shaft (12), the second bidirectional screw rod (14) and the second grinding wheel (13) are connected via threads, a material discharge mechanism is used to place special-shaped rare earth permanent magnet material, and a fixing mechanism is used to fix the second slide plate (8) on the first slide plate (4); The material discharging mechanism comprises a support plate (151), a lifting plate (152), an arc-shaped guide rail (153), a rotating frame (154), a rotating plate (155), a servo motor (156), a material discharging module (157), a contact plate (159) and a rotating assembly. The front and rear sides of the top of the bottom plate (1) are connected to the support plate (151). The top of the support plate (151) is slidably connected to the lifting plate (152). The lifting plate (152) and the support plate (151) are both installed with an arc-shaped guide rail (153). The arc-shaped guide rail (153) on the lifting plate (152) and the arc-shaped guide rail (153) on the support plate (151) are combined into a complete annular guide rail. The rotating frame (154) is slidably connected to the two front and rear opposite arc-shaped guide rails (153). The rotating frame (154) is rotatably connected to the rotating plate. (155), a servo motor (156) is installed on the rotating frame (154), the output shaft of the servo motor (156) is connected to the rotating plate (155) to drive the rotating plate (155) to rotate, the rotating plate (155) is connected to a detachable discharge module (157), the discharge module (157) is provided with a discharge groove (158) for placing the special-shaped rare earth permanent magnetic material, and the rotating frame (154) is connected to a contact plate (159), the first slide plate (4) will contact the contact plate (159) during the process of moving to the left, and push the contact plate (159) to move upward, the contact plate (159) drives the rotating plate (155) to move upward, and lifts the rotating plate (155), and the rotating assembly is used to control the rotation of the rotating plate (155) to turn over the special-shaped rare earth permanent magnetic material.

2. The surface processing device for a special-shaped rare earth permanent magnetic material according to claim 1, characterized in that: The rotating assembly comprises an arc-shaped rack (1510), a stepping motor (1511) and a gear (1512); the arc-shaped rack (1510) is connected to both the front and rear sides of the rotating frame (154); the arc-shaped racks (1510) on the two rotating frames (154) are combined into a complete inner gear ring; the stepping motor (1511) is installed on each support plate (151); the output shaft of the stepping motor (1511) is connected to a gear (1512); and the inner gear ring formed by the gear (1512) and the arc-shaped rack (1510) is meshed.

3. The surface processing device for a special-shaped rare earth permanent magnetic material as claimed in claim 2, characterized in that: The fixing mechanism comprises a magnet (161), an electric push rod (162) and a card plate (163); the second slide plate (8) is connected to the magnet (161), the magnet (161) can be adsorbed on the slide rail (3); the top of the first slide plate (4) is installed with an electric push rod (162); the telescopic rod of the electric push rod (162) is connected to the card plate (163); the card plate (163) slides through the first slide plate (4); the second slide plate (8) is provided with a card slot (164), the card plate (163) can be inserted into the card slot (164) to fix the second slide plate (8) on the first slide plate (4).

4. The surface processing device for a special-shaped rare earth permanent magnetic material as claimed in claim 3, characterized in that: The invention also comprises a vacuum cleaner (171), a hose (172), a cover (173), a hard tube (174) and a suction nozzle (175). The vacuum cleaner (171) is installed on both the front and rear sides of the top of the bottom plate (1). The vacuum cleaner (171) is connected to the hose (172). The first slide plate (4) is connected to the cover (173). The cover (173) is located above the grinding roller (7), the first grinding wheel (10) and the second grinding wheel (13). The top of the cover (173) is connected to the hard tube (174). The hard tube (174) is connected to the hose (172). The bottom of the hard tube (174) is connected to the suction nozzle (175). The suction nozzle (175) passes through the top of the cover (173).

5. The surface processing device for a special-shaped rare earth permanent magnetic material as claimed in claim 4, characterized in that: It also includes a mounting plate (181) and a roller (182), wherein the first slide plate (4) is connected to the mounting plate (181), the bottom of the mounting plate (181) is rotatably connected to the roller (182), and the roller (182) is in contact with the top of the slide rail (3).

6. The surface processing device for a special-shaped rare earth permanent magnetic material as claimed in claim 5, characterized in that: The left and right sides of the contact plate (159) are both inclined.

7. The surface processing device for a special-shaped rare earth permanent magnetic material as claimed in claim 6, characterized in that: The side of the first slide plate (4) facing the contact plate (159) is an inclined surface.

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