High-precision neodymium iron boron magnet surface treatment mechanism for servo motors

Abstract

A high-precision surface treatment mechanism for NdFeB magnets used in servo motors is included for grinding ring-shaped or tubular NdFeB magnet components. The mechanism comprises a base on which a clamping mechanism and a grinding mechanism are mounted. The clamping mechanism includes a grinding column with an inner wall grinding surface on its side for grinding the inner surface of the NdFeB magnet component. The grinding mechanism includes an assembly frame on which an upper assembly plate, alternating first and second grinding rings, and a lower assembly plate are coaxially mounted from top to bottom. The inner walls of the first and second grinding rings have an outer wall grinding surface for grinding the outer surface of the NdFeB magnet component. The first and second grinding rings rotate in opposite directions. Compared with existing technologies, this application can simultaneously grind both the outer and inner walls of the NdFeB magnet component, greatly improving production efficiency.

Description

Technical Field

[0001] This invention belongs to the technical field of neodymium iron boron magnet grinding equipment, specifically relating to a high-precision neodymium iron boron magnet surface treatment mechanism for use in servo motors. 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. Currently, NdFeB magnets are widely used in electronics, machinery, energy, transportation, and other fields.

[0003] Servo motors are one of the application areas of neodymium iron boron (NdFeB) magnets. In servo motors, a toroidal NdFeB magnetic ring is required to increase stability. However, the manufacturing process of the NdFeB magnetic ring involves surface treatment, such as grinding 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 significantly 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 high-precision surface treatment mechanism for neodymium iron boron magnets in servo motors, which can simultaneously polish both 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 high-precision neodymium iron boron magnet surface treatment mechanism for servo motors, used for grinding ring-shaped or tubular neodymium iron boron magnet parts, includes a base, on which a clamping mechanism and a grinding mechanism are mounted.

[0008] The clamping mechanism includes a grinding column, the side of which has an inner wall grinding surface for grinding the inner surface of the NdFeB magnet. The clamping seat is connected to an air pump via a flexible hose. The clamping seat contains a flexible clamping sleeve, the bottom of which has a vent hole connected to the flexible hose.

[0009] The grinding mechanism includes an assembly frame on which, from top to bottom, an upper assembly plate, an alternately arranged first and second grinding rings, and a lower assembly plate are coaxially mounted. The inner walls of the first and second grinding rings are provided with outer wall grinding surfaces for grinding the outer surfaces of the NdFeB magnet components. The first grinding ring is driven by a first grinding motor, and the second grinding ring is driven by a second grinding motor, with the first and second grinding motors rotating in opposite directions.

[0010] In a preferred embodiment, both the first grinding ring and the second grinding ring include a grinding ring body. The grinding ring body is provided with an assembly groove and an assembly flange. The assembly groove can be assembled with an adjacent assembly flange. A bearing is assembled between the assembly flange and the assembly groove.

[0011] In a preferred embodiment, the grinding ring body is provided with gear teeth, and the grinding ring body is connected to a transmission gear through gear teeth meshing. The transmission gear is connected to a first grinding motor or a second grinding motor for transmission.

[0012] In a preferred embodiment, the grinding precision of the lower outer wall grinding surface in the grinding mechanism is higher than that of the upper outer wall grinding surface.

[0013] In a preferred embodiment, the polishing precision of the inner wall polishing surface increases sequentially from top to bottom.

[0014] In a preferred embodiment, the base is further provided with a moving mechanism, the moving mechanism including symmetrically arranged lifting screws, a lifting platform is assembled between the lifting screws, a sliding rail is provided on the lifting platform, and the clamping mechanism is assembled in the sliding rail.

[0015] In a preferred embodiment, the clamping mechanism includes a sliding seat assembled with a sliding rail, a lifting column is assembled inside the sliding seat, a clamping seat is mounted on the lifting column, and the grinding column is installed inside the clamping seat.

[0016] In a preferred embodiment, the base is provided with a conveyor channel on one side of the grinding mechanism. The base is also provided with a material discharge channel below the lower assembly plate.

[0017] In a preferred embodiment, the material discharge channel is inclined. An air blowing port is provided on the material discharge channel below the grinding mechanism, and an air pump is connected to the air blowing port.

[0018] Compared with the prior art, this application has the following beneficial effects:

[0019] 1. It can simultaneously grind both the outer and inner walls of neodymium iron boron magnet parts, greatly improving production efficiency.

[0020] 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.

[0021] 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.

[0022] 4. The polishing process is fully automated, requiring no manual operation, which greatly reduces labor costs.

[0023] 5. The clamping mechanism clamps the neodymium iron boron magnet by air extraction, thus avoiding damage to the surface of the magnet. Attached Figure Description

[0024] Figure 1 A three-dimensional schematic diagram of a high-precision NdFeB surface treatment device. Figure 1 .

[0025] Figure 2 A three-dimensional schematic diagram of a high-precision NdFeB surface treatment device. Figure 2 .

[0026] Figure 3 A three-dimensional diagram of the clamping mechanism Figure 1 .

[0027] Figure 4 A three-dimensional diagram of the clamping mechanism Figure 2 .

[0028] Figure 5 This is a three-dimensional schematic diagram of the grinding mechanism.

[0029] Figure 6 An exploded view of the assembly structure of the first and second grinding rings.

[0030] Figure 7 This is a three-dimensional schematic diagram of the first or second grinding ring.

[0031] The following is an explanation of the markings in the accompanying drawings:

[0032] 1. Abutment;

[0033] 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;

[0034] 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;

[0035] 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;

[0036] 5. Moving mechanism; 51. Lifting screw; 52. Lifting platform; 53. Sliding rail; 54. Lifting motor;

[0037] 6. Conveyor channel;

[0038] 7. Material discharge chute; 71. Air inlet; 72. Air pump;

[0039] 8. Neodymium iron boron magnet components. Detailed Implementation

[0040] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0041] 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.

[0042] 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.

[0043] Reference Figures 1 to 7 A high-precision neodymium iron boron magnet surface treatment mechanism for servo motors, used for grinding ring-shaped or tubular neodymium iron boron magnet parts 8, 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:

[0044] The clamping mechanism 2 includes a grinding column 21, the side of which is provided with an inner wall grinding surface 211 for grinding the inner surface of the neodymium iron boron magnet component 8. The clamping mechanism 2 clamps the neodymium iron boron magnet component by air suction clamping to avoid damage to the surface of the neodymium iron boron magnet component. Its specific structure is as follows: the clamping seat 26 is connected to an air pump 28 through a hose. The clamping seat 26 is provided with a soft clamping sleeve 27, the bottom of which is provided with a vent hole 271, which is connected to the hose.

[0045] 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.

[0046] 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. Furthermore, the polishing process is fully automated, requiring no manual operation, which greatly reduces labor costs.

[0047] 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 body 42 is connected to a transmission gear 36 through the gear teeth 47. The transmission gear 36 is connected and driven by the first grinding motor 34 or the second grinding motor 35.

[0048] In one specific embodiment, the grinding precision of the lower outer wall grinding surface 43 in the grinding mechanism 3 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] In one specific embodiment, 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.

[0053] 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 high-precision neodymium-iron-boron magnet surface treatment mechanism for use in a servo motor for polishing a ring-shaped or tubular neodymium-iron-boron magnet member (8), characterized by, Includes a base (1), on which a clamping mechanism (2) and a grinding mechanism (3) are mounted; The clamping mechanism (2) includes a grinding column (21) and a clamping seat (26). 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). The clamping seat (26) is connected to an air pump (28) via a hose. The clamping seat (26) has a soft clamping sleeve (27) inside. The bottom of the clamping sleeve has a vent hole (271) connected to the hose. The grinding mechanism (3) includes an assembly frame (31), on which an upper assembly plate (32), an alternately arranged first grinding ring (40) and second grinding ring (41), and a lower assembly plate (33) are coaxially mounted from top to bottom. The inner walls of the first grinding ring (40) and the second grinding ring (41) are provided with outer wall grinding surfaces (43) for grinding the outer surface of the neodymium iron boron magnet (8). The first grinding ring (40) is driven by a first grinding motor (34), and the second grinding ring (41) is driven by a second grinding motor (35). The first grinding motor (34) and the second grinding motor (35) rotate in opposite directions. 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 ring body (42) is provided with gear teeth (47). The grinding ring body (42) 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.

2. The high-precision neodymium iron boron magnet surface treatment mechanism for servo motors according to claim 1, characterized in that, 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).

3. The high-precision neodymium iron boron magnet surface treatment mechanism for servo motors according to claim 2, characterized in that, The grinding precision of the inner wall grinding surface (211) increases sequentially from top to bottom.

4. The high-precision neodymium iron boron magnet surface treatment mechanism for servo motors according to claim 1, characterized in that, The base (1) is also provided with a moving mechanism (5), which includes symmetrically arranged lifting screws (51), and a lifting platform (52) is assembled between the lifting screws (51). The lifting platform (52) is provided with a sliding rail (53), and the clamping mechanism (2) is assembled in the sliding rail (53).

5. The high-precision neodymium iron boron magnet surface treatment mechanism for servo motors according to claim 4, characterized in that, The clamping mechanism (2) includes a sliding seat (22) assembled with a sliding rail (53), a lifting column (24) is assembled inside the sliding seat (22), a clamping seat (26) is mounted on the lifting column (24), and the grinding column (21) is installed inside the clamping seat (26).

6. The high-precision neodymium iron boron magnet surface treatment mechanism for servo motors according to claim 1, characterized in that, The base (1) has a conveyor channel (6) on one side of the grinding mechanism (3); the base (1) has a material drop channel (7) below the lower assembly plate (33).

7. The high-precision neodymium iron boron magnet surface treatment mechanism for servo motors according to claim 6, characterized in that, The material discharge channel (7) is inclined; an air blowing port (71) is provided on the material discharge channel (7) below the grinding mechanism (3), and an air blowing pump (72) is connected to the air blowing port (71).

Images