Surface treatment components in NdFeB magnet production equipment

Abstract

A surface treatment component in a neodymium iron boron (NdFeB) magnet production equipment is used for grinding ring-shaped or tubular NdFeB magnet parts, including a grinding column and a grinding mechanism. The grinding column has an inner wall grinding surface on its side for grinding the inner surface of the NdFeB magnet part. The grinding mechanism includes alternating first and second grinding rings. Both the first and second grinding rings have an outer wall grinding surface on their inner walls for grinding the outer surface of the NdFeB magnet part. The first and second grinding rings rotate in opposite directions. In the grinding mechanism, the grinding precision of the lower outer wall grinding surface is higher than that of the upper outer wall grinding surface; the grinding precision of the inner wall grinding surfaces increases sequentially from top to bottom. Compared with the prior art, this application can simultaneously grind both the outer and inner walls of the NdFeB magnet part, greatly improving production efficiency.

Description

Technical Field

[0001] This invention belongs to the technical field of NdFeB magnet polishing equipment, specifically relating to a surface treatment component in NdFeB magnet production equipment. Background Technology

[0002] Neodymium iron boron (NdFeB) magnets, also known as neodymium magnets, are third-generation rare-earth permanent magnet materials. They are currently the second strongest permanent magnets after holmium magnets at absolute zero, boasting advantages such as high performance and cost-effectiveness. In servo motors, especially AC permanent magnet synchronous servo motors, magnetic components such as magnetic tiles and magnetic rings are essential parts. The toroidal NdFeB magnetic rings, in particular, increase structural stability, suppress high-frequency noise, and enhance the motor's anti-interference capability.

[0003] The manufacturing of neodymium iron boron (NdFeB) magnetic rings differs from that of ordinary magnetic components with only a single treated surface. The production process of NdFeB magnetic rings requires surface treatment, including grinding of both the outer and inner surfaces. Current technology primarily uses two different grinding machines to grind the outer and inner surfaces of the magnet separately, resulting in low grinding efficiency and severely impacting magnet production efficiency.

[0004] Therefore, based on some of the situations in the prior art described above, this application has made further designs and improvements. Summary of the Invention

[0005] To address the shortcomings of the existing technology, this invention provides a surface treatment component for neodymium iron boron magnet production equipment, which can simultaneously polish the outer and inner walls of neodymium iron boron magnet parts, greatly improving production efficiency.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution.

[0007] A surface treatment component in a neodymium iron boron (NdFeB) magnet production equipment is used for grinding ring-shaped or tubular NdFeB magnet parts, including a grinding column and a grinding mechanism. The grinding column has an inner wall grinding surface on its side for grinding the inner surface of the NdFeB magnet part. The grinding mechanism includes alternating first and second grinding rings. Both the first and second grinding rings have an outer wall grinding surface on their inner walls for grinding the outer surface of the NdFeB magnet part.

[0008] The first and second grinding rings rotate in opposite directions. In the grinding mechanism, the grinding precision of the lower outer wall grinding surface is higher than that of the upper outer wall grinding surface; the grinding precision of the inner wall grinding surface increases sequentially from top to bottom.

[0009] In a preferred embodiment, both the first grinding ring and the second grinding ring include a grinding ring body, the grinding ring body being provided with an assembly groove and an assembly flange, the assembly groove being assembled with an adjacent assembly flange; a bearing is assembled between the assembly flange and the adjacent assembly groove.

[0010] In a preferred embodiment, the grinding mechanism further includes an assembly frame on which an upper assembly plate and a lower assembly plate are mounted. The first grinding ring and the second grinding ring are assembled between the upper assembly plate and the lower assembly plate.

[0011] In a preferred embodiment, the polishing mechanism further includes a first polishing motor and a second polishing motor; the polishing ring body is provided with gear teeth, and the polishing ring body is connected to a transmission gear through the gear teeth; the first polishing ring is connected to the first polishing motor through the transmission gear, and the second polishing ring is connected to the second polishing motor through the transmission gear.

[0012] Compared with the prior art, this application has the following beneficial effects:

[0013] 1. It can simultaneously grind both the outer and inner walls of neodymium iron boron magnet parts, greatly improving production efficiency.

[0014] 2. The first and second grinding rings work together to perform high-precision grinding on neodymium iron boron magnets, and the grinding precision can be adjusted quickly.

[0015] 3. The grinding mechanism is set vertically, which allows the neodymium iron boron magnet to move and grind in the vertical direction with high centering accuracy. Attached Figure Description

[0016] Figure 1 A three-dimensional schematic diagram of a high-precision NdFeB surface treatment device. Figure 1 .

[0017] Figure 2 A three-dimensional schematic diagram of a high-precision NdFeB surface treatment device. Figure 2 .

[0018] Figure 3 A three-dimensional diagram of the clamping mechanism Figure 1 .

[0019] Figure 4 A three-dimensional diagram of the clamping mechanism Figure 2 .

[0020] Figure 5 This is a three-dimensional schematic diagram of the grinding mechanism.

[0021] Figure 6 An exploded view of the assembly structure of the first and second grinding rings.

[0022] Figure 7 This is a three-dimensional schematic diagram of the first or second grinding ring.

[0023] The following is an explanation of the markings in the accompanying drawings:

[0024] 1. Abutment;

[0025] 2. Clamping mechanism; 21. Grinding column; 211. Inner wall grinding surface; 22. Sliding seat; 23. Sliding motor; 24. Lifting column; 25. Clamping motor; 26. Clamping seat; 27. Soft clamping sleeve; 271. Vent hole; 28. Air pump;

[0026] 3. Grinding mechanism; 31. Assembly frame; 32. Upper assembly plate; 33. Lower assembly plate; 34. First grinding motor; 35. Second grinding motor; 36. Transmission gear;

[0027] 40. First grinding ring; 41. Second grinding ring; 42. Grinding ring body; 43. Outer wall grinding surface; 44. Assembly groove; 45. Assembly flange; 46. Bearing; 47. Gear tooth;

[0028] 5. Moving mechanism; 51. Lifting screw; 52. Lifting platform; 53. Sliding rail; 54. Lifting motor;

[0029] 6. Conveyor channel;

[0030] 7. Material discharge chute; 71. Air inlet; 72. Air pump;

[0031] 8. Neodymium iron boron magnet components. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0033] In the following embodiments, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0034] In the description of this invention, it should be understood that terms such as center, longitudinal, transverse, length, width, thickness, upper, lower, front, rear, left, right, vertical, horizontal, top, bottom, inner, outer, clockwise, counterclockwise, etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing and simplifying the description of this invention; therefore, they should not be construed as limiting this invention. Furthermore, terms such as first, second, etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features shown. In the description of this invention, unless otherwise expressly specified and limited, terms such as installation, connection, linking, etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Reference Figures 1 to 7 A high-precision neodymium iron boron surface treatment device is disclosed for grinding annular or tubular neodymium iron boron magnet components 8, such as magnetic rings in servo motors. The device includes a base 1, on which a clamping mechanism 2 and a grinding mechanism 3 are mounted. The essential feature distinguishing this embodiment from the prior art is as follows:

[0036] The clamping mechanism 2 includes a grinding column 21, and the grinding column 21 has an inner wall grinding surface 211 on its side for grinding the inner surface of the neodymium iron boron magnet 8.

[0037] The polishing mechanism 3 includes an assembly frame 31, on which, from top to bottom, are coaxially mounted an upper assembly plate 32, alternating first and second polishing rings 40 and 41, and a lower assembly plate 33. The inner walls of the first and second polishing rings 40 and 41 are provided with outer wall polishing surfaces 43 for polishing the outer surface of the neodymium iron boron magnet component 8. The first polishing ring 40 is driven by a first polishing motor 34, and the second polishing ring 41 is driven by a second polishing motor 35, with the first and second polishing motors 34 and 35 rotating in opposite directions.

[0038] A conveyor channel 6 is provided on one side of the grinding mechanism 3 on the base 1. A material drop channel 7 is provided on the base 1 below the lower assembly plate 33. This allows the high-precision NdFeB surface treatment device described in this application to be connected and transported with other equipment. The material drop channel 7 is inclined. An air blowing port 71 is provided on the material drop channel 7 below the grinding mechanism 3, and an air pump 72 is externally connected to the air blowing port 71. The air blowing port 71 is used to slow down the falling speed of the NdFeB magnet 8 and disperse the debris generated during grinding.

[0039] The working principle of this embodiment is as follows: The first grinding motor 34 and the second grinding motor 35 are started, and the first grinding ring 40 and the second grinding ring 41 rotate in opposite directions. The clamping mechanism 2 clamps the NdFeB magnet 8 above the grinding mechanism 3, and then lowers it. The clamping mechanism 2 releases the clamp, and the NdFeB magnet 8 falls under the action of gravity. During the falling process, the outer wall of the NdFeB magnet 8 is ground by the outer wall grinding surfaces 43 of the first grinding ring 40 and the second grinding ring 41. At the same time, the NdFeB magnet 8 is driven to rotate, so that the inner wall of the NdFeB magnet 8 is ground by the inner wall grinding surface 211 located on the grinding column 21. When the NdFeB magnet 8 is completely removed from the grinding range of the grinding mechanism 3, the grinding is completed. This embodiment moves and grinds in the vertical direction, has high centering accuracy, and can grind both the outer and inner walls of the NdFeB magnet 8 at the same time, which greatly improves production efficiency.

[0040] As a specific embodiment, the clamping mechanism 2 clamps by means of air suction clamping, and its specific structure is as follows: the clamping seat 26 is connected to an air pump 28 via a hose. The clamping seat 26 is provided with a soft clamping sleeve 27, and the bottom of the clamping sleeve is provided with a vent hole 271, which is connected to the hose.

[0041] As a specific embodiment, the specific structures of the first grinding ring 40 and the second grinding ring 41 are as follows: Both the first grinding ring 40 and the second grinding ring 41 include a grinding ring body 42. The grinding ring body 42 is provided with an assembly groove 44 and an assembly flange 45. The assembly groove 44 can be assembled with an adjacent assembly flange 45. A bearing 46 is assembled between the assembly flange 45 and the assembly groove 44. The grinding ring body 42 is provided with gear teeth 47, and the grinding ring is connected to a transmission gear 36 through the gear teeth 47. The transmission gear 36 is connected to the first grinding motor 34 or the second grinding motor 35 for transmission.

[0042] Specifically, in the grinding mechanism 3, the grinding precision of the lower outer wall grinding surface 43 is higher than that of the upper outer wall grinding surface 43. The grinding precision of the inner wall grinding surface 211 increases sequentially from top to bottom. This allows the neodymium iron boron magnet 8 to achieve high-precision grinding in the grinding mechanism 3.

[0043] The advantage of this embodiment is that it enables high-precision grinding of the neodymium iron boron magnet 8, and the grinding precision can be quickly adjusted by disassembling or adding the first grinding ring 40 or the second grinding ring 41 located below.

[0044] In one specific embodiment, the base 1 is provided with a moving mechanism 5 for driving the clamping mechanism 2 to move for clamping. The moving mechanism 5 includes symmetrically arranged lifting screws 51, with a lifting platform 52 assembled between the lifting screws 51. A lifting motor 54 is mounted on the lifting platform 52, and the lifting motor 54 is used to drive the lifting platform 52 to move up and down. A sliding rail 53 is provided on the lifting platform 52, and the clamping mechanism 2 is assembled in the sliding rail 53.

[0045] Specifically, the clamping mechanism 2 includes a sliding seat 22 assembled with a sliding rail 53. A sliding motor 23 is mounted on the sliding seat 22, which drives the sliding seat 22 to slide within the sliding rail 53. A lifting column 24 is assembled inside the sliding seat 22, and a clamping motor 25 is mounted on the sliding seat 22. The clamping motor 25 drives the lifting column 24 to rise and fall to clamp the neodymium iron boron magnet component 8. A clamping seat 26 is mounted on the lifting column 24, and the grinding column 21 is installed within the clamping seat 26.

[0046] The scope of protection of this invention includes, but is not limited to, the above embodiments. The scope of protection of this invention is defined by the claims. Any substitutions, modifications, or improvements to this technology that are easily conceived by those skilled in the art fall within the scope of protection of this invention.

Claims

1. A surface treatment component in a neodymium iron boron magnet production equipment, used for grinding annular or tubular neodymium iron boron magnet parts (8), characterized in that, include Grinding post (21), wherein the side of the grinding post (21) is provided with an inner wall grinding surface (211) for grinding the inner surface of the neodymium iron boron magnet (8); and The grinding mechanism (3) includes a first grinding ring (40) and a second grinding ring (41) arranged alternately; the inner walls of the first grinding ring (40) and the second grinding ring (41) are provided with an outer wall grinding surface (43) for grinding the outer surface of the neodymium iron boron magnet (8). The first grinding ring (40) and the second grinding ring (41) rotate in opposite directions; in the grinding mechanism (3), the grinding precision of the lower outer wall grinding surface (43) is higher than that of the upper outer wall grinding surface (43); the grinding precision of the inner wall grinding surface (211) increases from top to bottom. The first grinding ring (40) and the second grinding ring (41) both include a grinding ring body (42), the grinding ring body (42) is provided with an assembly groove (44) and an assembly flange (45), the assembly groove (44) is assembled with the adjacent assembly flange (45); a bearing (46) is assembled between the assembly flange (45) and the adjacent assembly groove (44); the grinding mechanism (3) also includes an assembly frame (31), the assembly frame (31) is equipped with an upper assembly plate (32) and a lower assembly plate (33); the first grinding ring (40) and the second grinding ring (41) are assembled between the upper assembly plate (32) and the lower assembly plate (33).

2. The surface treatment component in the NdFeB magnet production equipment according to claim 1, characterized in that, The grinding mechanism (3) further includes a first grinding motor (34) and a second grinding motor (35); the grinding ring body (42) is provided with gear teeth (47), and the grinding ring body (42) is connected to a transmission gear (36) through the gear teeth (47). The first grinding ring (40) is connected to the first grinding motor (34) through the transmission gear (36), and the second grinding ring (41) is connected to the second grinding motor (35) through the transmission gear (36).

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