Neodymium iron boron magnet processing is used dry dusting polishing device

Abstract

The application discloses a dry dust removal and polishing device for neodymium iron boron magnet processing, and belongs to the polishing technical field of the neodymium iron boron magnet, which comprises an operation box, a clamping hydraulic rod is fixedly connected to the bottom of the operation box, an output end of the clamping hydraulic rod is fixedly connected with a clamping frame, electric sliding rails are arranged on the inner wall of the operation box, a lateral hydraulic rod is movably arranged on the surface of the electric sliding rail, an output end of the lateral hydraulic rod is fixedly connected with a fixing plate, and a hollow shaft motor is bolted to the inner wall of the fixing plate. The dry dust removal and polishing device for the neodymium iron boron magnet processing blows air to the grinding wheel through the high-pressure fan and the air supply pipe when polishing the workpiece in the working process, so that no impurities are left on the surface of the grinding wheel. In addition, the dust degree of the grinding wheel position is intelligently monitored in real time through the arranged laser sensor, the power of the high-pressure fan can be adjusted in real time, the grinding wheel is efficiently and stably dedusted, the polishing quality of the workpiece is ensured, and the working efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of neodymium iron boron magnet polishing technology, specifically to a dry dust removal and polishing device for processing neodymium iron boron magnets. Background Technology

[0002] Neodymium iron boron (NdFeB) magnets are high-performance permanent magnet materials with high magnetic field strength and large remanence. They maintain strong magnetism without the need for electricity and are widely used in motors, sensors, automation equipment, and medical devices for adsorption, driving, positioning, and energy conversion. They are core components of modern industry. During the production of NdFeB magnets, grinding is required to remove burrs from the workpiece surface, making it smooth and optimizing dimensional accuracy. This necessitates the use of grinding equipment, as illustrated in application number 202210913681.5, filed on August 1, 2022. Chinese invention patent application discloses a grinding device for neodymium iron boron magnets. During operation, it can automatically grind magnet blanks, simultaneously grinding both the outer surface and the inner wall of the central ring, significantly improving the production efficiency of circular magnets. Another Chinese utility model patent application, with application number 202322133187.X and application date of August 9, 2023, discloses a magnetic material grinding device. When grinding the outer wall of a magnetic material column, the device can adjust the positions of the fixing brackets at both ends according to the length of the magnetic material column, utilizing the fixing brackets at both ends... The fixed frame clamps both ends of the magnetic column, improving the efficiency of grinding the outer wall of the magnetic column. This solves the problem that general grinding devices have simple structures and cannot fix both ends when grinding the outer wall of the magnetic column, resulting in insufficient grinding and reduced efficiency. This improves the efficiency of the magnetic grinding equipment. This also relates to Chinese invention patent application number 202411297863.X, filed on 2024-09-18, entitled "A Grinding Device for Permanent Magnet Processing". The device improves the stability of the fixed plate by setting up a grinding box for installing and fixing the fixed plate. It also improves the stability of the mounting plate by setting up the fixed plate and support columns to work together to install and support the mounting plate and prevent the mounting plate from shifting during use, which would cause the magnetic core to shift and become unstable. The device also fixes and limits the magnetic core by setting up a fixing device. At the same time, it solves the problem that the existing method of grinding the surface of ferrite magnetic cores is generally manual grinding, which is inefficient and has poor grinding accuracy, and cannot meet the needs of use. In actual operation, dust is generated during the end face grinding process. The dust adheres to the grinding wheel, which will affect the grinding accuracy. If there is no grinding wheel dust removal structure, the dust will easily spread and pollute the environment, harm health, and also adhere to the equipment surface, affecting the grinding accuracy, causing jamming failures, reducing product qualification rate and equipment stability. Summary of the Invention

[0003] The purpose of this invention is to provide a dry dust removal and grinding device for processing neodymium iron boron magnets, in order to solve the problems mentioned in the background art, such as the lack of a grinding wheel dust removal structure in the dry dust removal and grinding device for processing neodymium iron boron magnets, which makes dust easily spread and pollute the environment, endanger health, and also adhere to the surface of the equipment, affecting the grinding accuracy, causing jamming failures, and reducing the product qualification rate and equipment stability.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a dry dust removal and grinding device for processing neodymium iron boron magnets, comprising an operating box, a clamping hydraulic rod fixedly connected to the bottom of the operating box, a clamping frame fixedly connected to the output end of the clamping hydraulic rod, and an electric slide rail provided on the inner wall of the operating box; a lateral hydraulic rod movably disposed on the surface of the electric slide rail, a fixed plate fixedly connected to the output end of the lateral hydraulic rod, and a hollow shaft motor bolted to the inner wall of the fixed plate; an air supply pipe disposed inside the hollow shaft motor, a grinding wheel bolted to the output end of the hollow shaft motor via a long rod, and the air supply pipe connected to the fixed plate via a locking assembly; a rack fixedly connected to the inner wall of the operating box, connected to the air supply pipe via a reversing assembly, and a dust removal port opened on the surface of the air supply pipe; a partition fixedly connected to the inner wall of the operating box, a sliding plate connected to the partition via a reciprocating assembly, and a striking rod fixedly connected to the inner wall of the sliding plate.

[0005] Preferably, the locking assembly includes a side plate fixedly connected to the inner wall of the fixing plate, and a high-pressure blower is bolted to the upper surface of the side plate, and a main air outlet pipe and a secondary air outlet pipe are provided on the lower surface of the high-pressure blower.

[0006] Preferably, a lower connecting plate is fixedly connected to the lower surface of the side plate, and the surface of the lower connecting plate is raised. A positioning rod is slidably arranged inside the raised part of the lower connecting plate. In addition, a force-bearing plate is fixedly connected to the upper surface of the positioning rod. The force-bearing plate is located at the lower end of the auxiliary air outlet pipe and is used to withstand wind force.

[0007] Preferably, the main air outlet pipe is movably connected to the air supply pipe. In addition, positioning grooves are provided on both the upper and lower sides of the air supply pipe. A first spring is fixedly connected to the lower surface of the force plate, and the other side of the first spring is connected to the protrusion of the lower plate.

[0008] Preferably, the reversing assembly includes a gear fixedly connected to the surface of the air supply pipe. The gear engages with a rack to rotate the air supply pipe and the dust removal port, ensuring that the dust removal port is always aligned with the grinding direction.

[0009] Preferably, a connecting shaft is fixedly connected to the inner wall of the air supply pipe, and the connecting shaft is located inside the dust removal port. A baffle is movably provided on the surface of the connecting shaft. In addition, a protrusion is fixedly connected to the inner wall of the air supply pipe.

[0010] Preferably, the connecting shaft and the baffle are connected by a torsion spring, and the protrusion prevents the baffle from rotating excessively when it rotates.

[0011] Preferably, the reciprocating assembly includes a guide rod fixedly connected to the surface of the partition plate, and a slide plate is slidably disposed on the surface of the guide rod. In addition, the end of the guide rod is protruding, and the guide rod is symmetrically distributed on both sides of the slide plate.

[0012] Preferably, an external rod is fixedly connected to the side of the fixing plate, and the external rod has an inverted "L" structure when viewed from above, and a push block is fixedly connected to the surface of the external rod.

[0013] Preferably, an inner connecting block is fixedly connected to the inner wall of the slide plate, and the surface of the inner connecting block and the surface of the push block are both arc-shaped structures. The inner connecting blocks are evenly distributed on the inner wall of the slide plate. In addition, the guide rod is connected to the slide plate by a second spring.

[0014] Compared with existing technologies, the beneficial effects of this invention are as follows: Employing a novel structural design, during the grinding process, a high-pressure blower and air supply pipe blow air onto the grinding wheel, ensuring no impurities remain on the wheel surface. Furthermore, a laser sensor intelligently monitors the dust level at the grinding wheel location in real time, allowing for real-time adjustment of the high-pressure blower's power for efficient and stable dust removal. This ensures the grinding quality of the workpiece and improves work efficiency. The specific details are as follows: (1) When the workpiece is placed on the clamping frame, the clamping hydraulic rod is started. After the clamping frame is clamped, the lateral hydraulic rod drives the hollow shaft motor and the grinding wheel to work. During this process, the laser sensor intelligently monitors the dust and pollution level at the position of the grinding wheel and intelligently adjusts the power of the high-pressure blower so that the high-pressure blower can flexibly adjust the wind force according to the actual situation, thereby enabling intelligent dry blowing dust removal operation on the grinding wheel.

[0015] (2) When the high-pressure blower is working, the auxiliary air outlet pipe works at the same time. At this time, the force plate moves the positioning rod under the action of the wind, so that the positioning rod enters the positioning groove. At this time, the air supply pipe is locked, so that when the air supply pipe is working, it will not rotate under the action of the wind. That is, when the air supply pipe is working, it always aligns with the grinding position to carry out efficient blowing dust removal work, thus ensuring work efficiency.

[0016] Furthermore, during the air supply process, the high-pressure air force directly pushes the baffle, causing it to rotate around the connecting shaft. At this time, the torsion spring is stretched, thus opening the dust removal port. When the high-pressure blower is not working, the baffle returns to its original position under the action of the torsion spring, directly covering the dust removal port. As a result, no impurities remain inside the dust removal port, ensuring the working efficiency of the dust removal port.

[0017] (3) In the dry dust removal and grinding device for processing neodymium iron boron magnets, after the upper end of the workpiece is ground, the high-pressure blower stops, and the electric slide rail drives the lateral hydraulic rod and the grinding wheel to descend and grind the lower end of the workpiece. During this process, the air supply pipe rotates under the action of gears and racks, causing the dust removal port to rotate. Thus, the dust removal port is still aligned with the grinding position, which can remove dust normally and efficiently. After the high-pressure blower is restarted, the positioning rod will re-enter the positioning groove, so that the air supply pipe is locked again.

[0018] (4) In the dry dust removal and grinding device for processing neodymium iron boron magnets, when the electric slide rail drives the lateral hydraulic rod and the grinding wheel to descend, the outer rod will intermittently push the inner block through the push block. At this time, under the action of the thrust, the guide rod and the second spring, the inner block drives the slide plate and the striking rod to make reciprocating linear motion in the horizontal direction. At this time, the striking rod can hit the outer wall of the partition, causing the partition to vibrate and shake off the impurities, which is convenient for the staff to clean. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the connection structure between the operating box and the clamping hydraulic rod of the present invention; Figure 2 This is a schematic diagram of the connection structure between the electric slide rail and the lateral hydraulic rod of the present invention; Figure 3 This is a schematic diagram of the connection structure between the hollow shaft motor and the grinding wheel of the present invention; Figure 4 This is a schematic diagram of the connection structure between the high-pressure blower and the side plate of the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of the air supply pipe of the present invention; Figure 6 For the present invention Figure 3 Enlarged structural diagram at point A in the middle; Figure 7 This is a schematic diagram of the positioning rod in its working state according to the present invention; Figure 8 This is a schematic diagram of the lateral hydraulic rod in the descending state of the present invention; Figure 9 This is a schematic diagram of the cross-sectional structure of the air supply pipe of the present invention; Figure 10 This is a schematic diagram of the distribution structure of the striking rod in this invention.

[0020] In the diagram: 1. Control box; 2. Clamping hydraulic rod; 3. Clamping frame; 4. Electric slide rail; 5. Lateral hydraulic rod; 6. Fixing plate; 7. Hollow shaft motor; 8. Side plate; 9. High-pressure fan; 10. Main air outlet pipe; 11. Auxiliary air outlet pipe; 12. Lower connecting plate; 13. Air supply pipe; 14. Gear; 15. Rack; 16. Dust removal port; 17. Positioning groove; 18. Force plate; 19. Positioning rod; 20. First spring; 21. Partition plate; 22. Guide rod; 23. Slide plate; 24. Second spring; 25. Baffle plate; 26. Protrusion; 27. Connecting shaft; 28. Torsion spring; 29. ​​External connecting rod; 30. Push block; 31. Internal connecting block; 32. Striking rod. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] This invention provides the following technical solution: a dry dust removal and polishing device for processing neodymium iron boron magnets: Please see Figures 1-10 The present invention provides the following technical solution: a dry dust removal and grinding device for processing neodymium iron boron magnets.

[0023] Example 1: By using a laser sensor, the operating power of the high-pressure blower 9 can be controlled in real time, allowing the air supply pipe 13 to operate flexibly, such as... Figures 1-5 As shown, the system includes an operation box 1, a clamping hydraulic rod 2 fixedly connected to the bottom of the operation box 1, a clamping frame 3 fixedly connected to the output end of the clamping hydraulic rod 2, and an electric slide rail 4 provided on the inner wall of the operation box 1; a lateral hydraulic rod 5 movably provided on the surface of the electric slide rail 4, a fixed plate 6 fixedly connected to the output end of the lateral hydraulic rod 5, and a hollow shaft motor 7 bolted to the inner wall of the fixed plate 6; an air supply pipe 13, which is located inside the hollow shaft motor 7, and a grinding wheel is connected to the output end of the hollow shaft motor 7 by a long rod bolt; the air supply pipe 13 is connected to the fixed plate 6 by a locking assembly, and a dust removal port 16 is opened on the surface of the air supply pipe 13.

[0024] When a workpiece needs to be ground, it is placed on the clamping frame 3. Then, the clamping hydraulic rod 2 is activated. When the clamping hydraulic rod 2 is working, the oil circuit is controlled by a solenoid valve. The circuit receives signals from the sensor or controller, driving the solenoid valve to be energized and de-energized, thereby controlling the flow and pressure of the hydraulic oil, thus enabling the clamping frame 3 to work. Finally, the clamping frame 3 clamps and fixes the workpiece. Then, the lateral hydraulic rod 5 works, driving the fixing plate 6, the hollow shaft motor 7, and the grinding wheel to work. During this process, the laser sensor monitors the position of the grinding wheel in real time. The laser sensor and the high-pressure blower 9 are connected by telecommunications. The laser sensor, connected to the main exhaust pipe 10, illuminates the grinding wheel area with a laser beam, detects changes in the scattering or transmittance of light by dust, converts the light signal into an electrical signal, and determines the dust concentration in real time. The signal is then transmitted to the control system. The controller outputs a corresponding control signal to adjust the power of the high-pressure blower 9 according to the dust concentration, achieving automatic adaptation of dust removal airflow, improving dust removal effect and energy efficiency. When the high-pressure blower 9 is working, it supplies air to the air supply pipe 13 through the main exhaust pipe 10. The air supply pipe 13 then sprays air through the dust removal port 16 to remove dust from the grinding wheel.

[0025] Example 2: Unlike Example 1, the locking component prevents the air supply pipe 13 from rotating during operation. Figures 5-9 As shown, the locking assembly includes a side plate 8 fixedly connected to the inner wall of the fixed plate 6, and a high-pressure blower 9 is bolted to the upper surface of the side plate 8. The lower surface of the high-pressure blower 9 is provided with a main air outlet pipe 10 and a secondary air outlet pipe 11. A lower connecting plate 12 is fixedly connected to the lower surface of the side plate 8, and the surface of the lower connecting plate 12 is convex. A positioning rod 19 is slidably provided inside the convex position of the lower connecting plate 12. In addition, a force-bearing plate 18 is fixedly connected to the upper surface of the positioning rod 19. The force-bearing plate 18 is located at the lower end of the secondary air outlet pipe 11 and is used to bear the wind force.

[0026] The main air outlet pipe 10 is movably connected to the air supply pipe 13. In addition, positioning grooves 17 are provided on both the upper and lower sides of the air supply pipe 13. A first spring 20 is fixedly connected to the lower surface of the force plate 18, and the other side of the first spring 20 is connected to the protruding position of the lower connecting plate 12.

[0027] A connecting shaft 27 is fixedly connected to the inner wall of the air supply pipe 13, and the connecting shaft 27 is located inside the dust removal port 16. A baffle 25 is movably provided on the surface of the connecting shaft 27. In addition, a protrusion 26 is fixedly connected to the inner wall of the air supply pipe 13. The connecting shaft 27 and the baffle 25 are connected by a torsion spring 28. Furthermore, the protrusion 26 prevents the baffle 25 from rotating excessively when it rotates.

[0028] When the high-pressure blower 9 is working, the auxiliary air outlet pipe 11 also works simultaneously. At this time, the force plate 18, under the action of the wind, drives the positioning rod 19 to move, so that the positioning rod 19 enters the positioning groove 17 (at this time, the first spring 20 is squeezed). At this time, the air supply pipe 13 is locked under the action of the positioning rod 19 and the positioning groove 17. Therefore, when the air supply pipe 13 is working, it will not rotate under the action of the wind. That is, when the air supply pipe 13 is working, it always aligns with the grinding position to perform efficient air blowing and dust removal, ensuring work efficiency. During the air blowing process of the air supply pipe 13, the high-pressure wind directly pushes the baffle 25, causing the baffle 25 to rotate around the connecting shaft 27. At this time, the torsion spring 28 is stretched, and the dust removal port 16 is opened. When the high-pressure blower 9 is not working, the baffle 25 returns to its original position under the action of the torsion spring 28, directly covering the dust removal port 16. Therefore, no impurities remain inside the dust removal port 16, ensuring the working efficiency of the dust removal port 16.

[0029] Example 3: Unlike Example 2, by using a reversing assembly, the air supply pipe 13 can still be aligned with the grinding position when the grinding wheel is grinding the other side of the workpiece, such as... Figure 7 and Figure 8 As shown, rack 15 is fixedly connected to the inner wall of operating box 1, and rack 15 is connected to air supply pipe 13 through reversing assembly; reversing assembly includes gear 14 fixedly connected to the surface of air supply pipe 13, gear 14 cooperates with rack 15 to rotate air supply pipe 13 and dust removal port 16 to reverse direction, so that dust removal port 16 is always aligned with the grinding direction.

[0030] After the upper end of the workpiece is ground, the high-pressure blower 9 stops. At this time, the electric slide rail 4 drives the lateral hydraulic rod 5 and the grinding wheel to descend and grind the lower end of the workpiece. During this process, the air supply pipe 13 rotates under the action of the gear 14 and the rack 15, causing the dust removal port 16 to rotate. Thus, the dust removal port 16 is still aligned with the grinding position, which can remove dust normally and efficiently. After the high-pressure blower 9 is restarted, the positioning rod 19 will re-enter the positioning groove 17, locking the air supply pipe 13 again. Under normal circumstances, the air supply pipe 13 remains stable under the action of friction between itself and the lower plate 12.

[0031] Example 4: Unlike Example 3, the reciprocating assembly allows the slide plate 23 and the striking rod 32 to move horizontally, enabling the striking rod 32 to strike the partition 21, causing impurities on the partition 21 to fall off. Figure 2 and Figure 10As shown, the partition 21 is fixedly connected to the inner wall of the control box 1, and the partition 21 is connected to the slide plate 23 through the reciprocating assembly. The inner wall of the slide plate 23 is fixedly connected to the striking rod 32. The reciprocating assembly includes a guide rod 22 fixedly connected to the surface of the partition 21, and the slide plate 23 is slidably disposed on the surface of the guide rod 22. In addition, the end of the guide rod 22 is protruding, and the guide rod 22 is symmetrically distributed on both sides of the slide plate 23.

[0032] An external rod 29 is fixedly connected to the side of the fixed plate 6. The top view of the external rod 29 is an inverted "L" structure. A push block 30 is fixedly connected to the surface of the external rod 29. An inner block 31 is fixedly connected to the inner wall of the slide plate 23. The surfaces of the inner block 31 and the push block 30 are both arc-shaped. The inner blocks 31 are evenly distributed on the inner wall of the slide plate 23. In addition, the guide rod 22 is connected to the slide plate 23 by a second spring 24.

[0033] During the grinding process, the partition 21 restricts the scattering of impurities. When the electric slide rail 4 drives the lateral hydraulic rod 5 and the grinding wheel to descend, the outer rod 29 will intermittently push the inner block 31 through the push block 30. When the inner block 31 is pushed, the inner block 31 and the slide plate 23 slide on the surface of the guide rod 22. At this time, the second spring 24 is squeezed. When the inner block 31 is not pushed, the slide plate 23 returns to its original position under the action of the second spring 24. Repeating the above process, the slide plate 23 and the striking rod 32 make reciprocating linear motion in the horizontal direction. At this time, the striking rod 32 can strike the outer wall of the partition 21, causing the partition 21 to vibrate and shake off the impurities, which is convenient for the staff to clean. While the partition 21 still requires manual cleaning during normal use, the workload of the staff is reduced. Similarly, the device needs to be maintained according to the user manual after a long period of use.

[0034] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dry dust removal and grinding device for processing neodymium iron boron magnets, comprising an operation box (1), wherein a clamping hydraulic rod (2) is fixedly connected to the bottom of the operation box (1), and a clamping frame (3) is fixedly connected to the output end of the clamping hydraulic rod (2), and an electric slide rail (4) is provided on the inner wall of the operation box (1). The surface of the electric slide rail (4) is movably provided with a lateral hydraulic rod (5), and the output end of the lateral hydraulic rod (5) is fixedly connected to a fixing plate (6), and a hollow shaft motor (7) is bolted to the inner wall of the fixing plate (6). Its features are: An air supply pipe (13) is installed inside a hollow shaft motor (7), and the output end of the hollow shaft motor (7) is connected to a grinding wheel by a long rod bolt. The air supply pipe (13) is connected to a fixing plate (6) by a locking assembly. A rack (15) is fixedly connected to the inner wall of the control box (1), and the rack (15) is connected to the air supply pipe (13) through a reversing assembly, and a dust removal port (16) is provided on the surface of the air supply pipe (13). A partition (21) is fixedly connected to the inner wall of the control box (1), and the partition (21) is connected to a slide plate (23) via a reciprocating assembly, and a striking rod (32) is fixedly connected to the inner wall of the slide plate (23). The locking assembly includes a side plate (8) fixedly connected to the inner wall of the fixing plate (6), and a high-pressure blower (9) is bolted to the upper surface of the side plate (8), and a main air outlet pipe (10) and a secondary air outlet pipe (11) are provided on the lower surface of the high-pressure blower (9). The lower surface of the side plate (8) is fixedly connected to a lower connecting plate (12), and the surface of the lower connecting plate (12) is raised. A positioning rod (19) is slidably arranged inside the raised part of the lower connecting plate (12). In addition, a force plate (18) is fixedly connected to the upper surface of the positioning rod (19). The reversing assembly includes a gear (14) fixedly connected to the surface of the air supply pipe (13). The gear (14) cooperates with the rack (15) to rotate the air supply pipe (13) and the dust removal port (16) so that the dust removal port (16) is always aligned with the grinding direction.

2. The dry dust removal and grinding device for processing neodymium iron boron magnets according to claim 1, characterized in that: A laser sensor is installed on the inner wall of the operation box (1).

3. The dry dust removal and polishing device for processing neodymium iron boron magnets according to claim 1, characterized in that: The load-bearing plate (18) is located at the lower end of the auxiliary air outlet pipe (11) and is used to withstand wind force.

4. The dry dust removal and grinding device for processing neodymium iron boron magnets according to claim 1, characterized in that: The main air outlet pipe (10) is movably connected to the air supply pipe (13). In addition, the upper and lower sides of the air supply pipe (13) are provided with positioning grooves (17). The lower surface of the force plate (18) is fixedly connected to a first spring (20), and the other side of the first spring (20) is connected to the protruding position of the lower plate (12).

5. The dry dust removal and grinding device for processing neodymium iron boron magnets according to claim 1, characterized in that: A connecting shaft (27) is fixedly connected to the inner wall of the air supply pipe (13), and the connecting shaft (27) is located inside the dust removal port (16). A baffle (25) is movably provided on the surface of the connecting shaft (27). In addition, a protrusion (26) is fixedly connected to the inner wall of the air supply pipe (13).

6. The dry dust removal and grinding device for processing neodymium iron boron magnets according to claim 5, characterized in that: The connecting shaft (27) is connected to the baffle (25) by a torsion spring (28), and the protrusion (26) prevents the baffle (25) from over-rotating when it rotates.

7. The dry dust removal and grinding device for processing neodymium iron boron magnets according to claim 1, characterized in that: The reciprocating assembly includes a guide rod (22) fixedly connected to the surface of the partition (21), and a slide plate (23) is slidably disposed on the surface of the guide rod (22). Furthermore, the end of the guide rod (22) is protruding, and the guide rod (22) is symmetrically distributed on both sides of the slide plate (23).

8. The dry dust removal and grinding device for processing neodymium iron boron magnets according to claim 1, characterized in that: An external rod (29) is fixedly connected to the side of the fixed plate (6), and the top view of the external rod (29) is an inverted "L" structure, and a push block (30) is fixedly connected to the surface of the external rod (29).

9. A dry dust removal and grinding device for processing neodymium iron boron magnets according to claim 8, characterized in that: An inner connecting block (31) is fixedly connected to the inner wall of the slide plate (23), and the surface of the inner connecting block (31) and the surface of the push block (30) are both arc-shaped structures. The inner connecting blocks (31) are evenly distributed on the inner wall of the slide plate (23). In addition, the guide rod (22) is connected to the slide plate (23) by a second spring (24).

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