Powerful neodymium iron boron magnet processing polisher

By designing an adaptive propulsion unit and a grinding machine driven by a rotary motor, the problem of low grinding efficiency on the side of flat neodymium iron boron magnets was solved, enabling continuous grinding and precise adjustment, thus improving production efficiency and grinding accuracy.

CN224295481UActive Publication Date: 2026-05-29ZHEJIANG YOUHONG NEW MATERIAL TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG YOUHONG NEW MATERIAL TECHNOLOGY CO LTD
Filing Date
2025-05-29
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing grinding equipment is difficult to grind the sides of flat neodymium iron boron magnets efficiently, and frequent downtime to change the grinding surface leads to low production efficiency and increased labor costs.

Method used

A grinding machine including a surface treatment unit and an adaptive propulsion unit was designed. The magnet is driven to rotate by a rotary motor, and the trigger rod is connected to the reference surface of the standard part to achieve continuous grinding of different sides. The grinding surface can be changed without stopping the machine by adaptive adjustment of the clamping component.

Benefits of technology

This technology enables efficient grinding of the sides of flat NdFeB magnets, improving production efficiency, ensuring grinding accuracy, and simplifying the installation and disassembly process of the magnets.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of strong neodymium-iron-boron magnet processing grinding machines, comprising: surface treatment unit, it includes polishing wheel and is used to drive the drive motor of polishing wheel rotation, the bottom end of the drive motor is fixedly connected with machine base, trigger lever is provided on the machine base;Self-adapting propulsion unit, it includes standard parts, unfinished piece and clamping assembly, the clamping assembly includes two clamping stations symmetrically arranged, one station fixed standard parts, another station fixed unfinished piece, the utility model strong neodymium-iron-boron magnet processing grinding machine, magnet is rotated by rotating motor, different side continuous polishing can be realized, without shutdown replacement polishing surface, greatly improve production efficiency, utilize trigger lever and standard parts datum surface resistance contact connection, realize self-adapting propulsion, can be automatically adjusted according to the shape and size of standard parts Propulsion distance, ensure polishing accuracy.
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Description

Technical Field

[0001] This utility model relates to the field of neodymium iron boron magnet processing technology, specifically a high-power grinding machine for processing neodymium iron boron magnets. Background Technology

[0002] Neodymium iron boron (NdFeB) magnets, with their superior properties such as high remanence, high coercivity, and high energy product, have become an indispensable key material in modern industry, widely used in electronics, machinery, new energy, and many other fields. In the actual manufacturing process of NdFeB magnets, surface treatment is an extremely important step, directly affecting the magnet's appearance quality, magnetic properties, and assembly precision.

[0003] Currently, the grinding technology for neodymium iron boron magnets has made some progress, but significant limitations still exist. Most existing grinding equipment is designed and optimized for the large flat surfaces of magnets, enabling relatively efficient and precise grinding of these surfaces. However, grinding the sides of flat neodymium iron boron magnets remains a major challenge.

[0004] Due to the relatively small side surface area and unique shape of flat magnets, existing grinding equipment struggles to effectively grind them. Even equipment capable of grinding the sides suffers from extremely low efficiency. This is because, during the grinding process, the machine must be stopped after each side is ground to change the grinding surface and readjust the magnet's position and angle. This frequent downtime not only wastes a significant amount of time and reduces production efficiency but also increases labor costs and equipment wear and tear. Utility Model Content

[0005] To address the shortcomings mentioned in the background art, the purpose of this utility model is to provide a powerful grinding machine for processing neodymium iron boron magnets, which can efficiently grind the sides of flat neodymium iron boron magnets and avoid the problem of frequent machine shutdowns to change the grinding surface.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A high-powered grinding machine for processing neodymium iron boron magnets includes: a surface treatment unit comprising a grinding wheel and a drive motor for driving the grinding wheel to rotate, the bottom end of the drive motor being fixedly connected to a base, and a trigger rod being provided on the base; an adaptive propulsion unit comprising a standard part, an unprocessed part, and a clamping assembly, the clamping assembly comprising two symmetrically arranged clamping stations, one station fixing the standard part and the other station fixing the unprocessed part, and a linear drive assembly being provided on the side of the clamping assembly away from the surface treatment unit; wherein, the end of the trigger rod is in contact with the reference surface of the standard part, and the working surface of the grinding wheel is in contact with the surface to be processed of the unprocessed part, and the contact positions of the two are the same.

[0008] More preferably, the clamping assembly includes a reference disk, a bidirectional ferrule, and a movable disk arranged coaxially. Push blocks are symmetrically slidably connected inside the bidirectional ferrule, and a fixing screw is rotatably connected inside the bidirectional ferrule. A fixing sleeve is threaded onto the fixing screw, and connecting rods are rotatably connected between the fixing sleeve and the two push blocks, respectively.

[0009] More preferably, two clamping stations are formed between the reference plate and the bidirectional ferrule, and between the bidirectional ferrule and the movable plate, respectively, and anti-slip pads are fixedly installed on the working surfaces of the reference plate, the push block, and the movable plate.

[0010] More preferably, the clamping assembly further includes a movable plate, on which a plurality of support rods are provided. An adjusting screw is fixedly connected to the end of the movable disc away from the bidirectional ferrule. An adjusting nut is threaded onto the adjusting screw. Limiting rings are rotatably sleeved on the reference disc, the adjusting nut, and the bidirectional ferrule. The plurality of limiting rings are respectively fixedly installed on the ends of different support rods.

[0011] More preferably, a rotary motor is fixedly installed on one of the support rods, the output end of the rotary motor is fixedly connected to a drive wheel, and one end of the reference disk is fixedly connected to a driven wheel that meshes with the drive wheel.

[0012] More preferably, the linear drive assembly includes a fixed base arranged parallel to the movable plate, the fixed base is provided with a plurality of guide rods, and the movable plate is provided with a plurality of connecting holes, the guide rods sliding through the connecting holes.

[0013] More preferably, a spring is fitted on the outer surface of the guide rod, and the two ends of the spring are respectively connected to the movable plate and the fixed seat.

[0014] The beneficial effects of this utility model are:

[0015] 1. This utility model uses a rotary motor to drive the magnet to rotate, which can achieve continuous grinding of different sides without stopping the machine to change the grinding surface, greatly improving production efficiency. By using the trigger rod to abut against the reference surface of the standard part, adaptive advancement can be achieved. The advancement distance can be automatically adjusted according to the shape and size of the standard part, ensuring grinding accuracy.

[0016] 2. The design of the clamping assembly of this utility model makes the installation and disassembly of standard parts and unprocessed parts convenient and quick, and the clamping and adjustment operations can be easily achieved by rotating the fixing screw and adjusting nut. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the surface treatment unit structure in this utility model;

[0020] Figure 3 This is a schematic diagram of the bidirectional ferrule structure in this utility model;

[0021] Figure 4 This is a schematic diagram of the movable disc structure in this utility model;

[0022] Figure 5 This is a schematic diagram of the linear drive component structure in this utility model.

[0023] In the picture:

[0024] 100. Surface treatment unit; 101. Grinding wheel; 102. Drive motor; 103. Base; 104. Trigger rod; 200. Adaptive propulsion unit; 201. Standard part; 202. Unprocessed part; 203. Clamping assembly; 203a. Reference plate; 203b. Two-way ferrule; 203c. Movable plate; 203d. Push block; 203e. Fixed screw; 203f. Fixed screw sleeve; 203g. Connecting rod; 203h. Anti-slip pad; 203i. Movable plate; 203j. Support rod; 203k. Adjusting screw; 203l. Adjusting nut; 203m. Limiting ring; 204. Linear drive assembly; 204a. Fixed base; 204b. Guide rod; 204c. Connecting hole; 204d. Spring; 205. Rotary motor; 206. Drive wheel; 207. Driven wheel. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] like Figure 1-5As shown, a high-powered grinding machine for processing neodymium iron boron magnets mainly includes a surface treatment unit 100 and an adaptive propulsion unit 200.

[0028] Surface treatment unit 100

[0029] The surface treatment unit 100 includes a grinding wheel 101 and a drive motor 102 for driving the grinding wheel 101 to rotate. A base 103 is fixedly connected to the bottom end of the drive motor 102, and a trigger rod 104 is provided on the base 103. The function of the drive motor 102 is to provide rotational power to the grinding wheel 101, enabling the grinding wheel 101 to perform grinding operations on the neodymium iron boron magnet. The trigger rod 104 is used to contact and connect with the reference surface of the standard part 201, providing a reference for adaptive propulsion.

[0030] Adaptive Propulsion Unit 200

[0031] The adaptive propulsion unit 200 includes a standard part 201, a workpiece 202, and a clamping assembly 203. The clamping assembly 203 includes two symmetrically arranged clamping stations, one station fixing the standard part 201 and the other station fixing the workpiece 202. A linear drive assembly 204 is provided on the side of the clamping assembly 203 away from the surface treatment unit 100.

[0032] Clamping component 203

[0033] The clamping assembly 203 includes a coaxially arranged reference disk 203a, a bidirectional ferrule 203b, and a movable disk 203c. Push blocks 203d are symmetrically slidably connected inside the bidirectional ferrule 203b, and a fixed screw 203e is rotatably connected inside the bidirectional ferrule 203b. A fixed threaded sleeve 203f is threaded onto the fixed screw 203e, and connecting rods 203g are rotatably connected between the fixed threaded sleeve 203f and the two push blocks 203d. By rotating the fixed screw 203e, since the fixed screw 203e is rotatably connected to the bidirectional ferrule 203b, the rotation of the fixed screw 203e causes the threaded fixed threaded sleeve 203f to move on the fixed screw 203e. This movement, in turn, causes the push blocks 203d to slide within the bidirectional ferrule 203b via the connecting rods 203g, thus achieving the clamping and releasing operations for the standard part 201 and the unprocessed part 202.

[0034] Two clamping stations are formed between the reference plate 203a and the bidirectional ferrule 203b, and between the bidirectional ferrule 203b and the movable plate 203c. Anti-slip pads 203h are fixedly installed on the working surfaces of the reference plate 203a, the push block 203d, and the movable plate 203c. The function of the anti-slip pads 203h is to increase the friction between the anti-slip pads and the standard part 201 and the unprocessed part 202, ensuring clamping stability.

[0035] The clamping assembly 203 also includes a movable plate 203i, on which several support rods 203j are provided. An adjusting screw 203k is fixedly connected to the end of the movable disc 203c away from the bidirectional clamping sleeve 203b. An adjusting nut 203l is threaded onto the adjusting screw 203k. Limiting rings 203m are rotatably fitted onto the reference disc 203a, the adjusting nut 203l, and the bidirectional clamping sleeve 203b. Multiple limiting rings 203m are respectively fixedly installed at the ends of different support rods 203j. By rotating the adjusting screw 203k, the distance between the movable disc 203c and the bidirectional clamping sleeve 203b can be adjusted, further adjusting the clamping force and position.

[0036] A rotary motor 205 is fixedly mounted on a support rod 203j. A drive wheel 206 is fixedly connected to the output end of the rotary motor 205. A driven wheel 207 that meshes with the drive wheel 206 is fixedly connected to one end of the reference disk 203a. The rotary motor 205 drives the reference disk 203a to rotate through the drive wheel 206 and the driven wheel 207, which in turn drives the clamped standard part 201 and the unprocessed part 202 to rotate, realizing the grinding of different sides without stopping the machine to change the grinding surface.

[0037] Linear drive component 204

[0038] The linear drive assembly 204 includes a fixed base 204a arranged parallel to the movable plate 203i. The fixed base 204a has several guide rods 204b, and the movable plate 203i has several connecting holes 204c. The guide rods 204b slide through the connecting holes 204c, and springs 204d are sleeved on the outer surface of the guide rods 204b. The two ends of the springs 204d are respectively connected to the movable plate 203i and the fixed base 204a in contact. The function of the linear drive assembly 204 is to provide a pushing force to the clamping assembly 203, enabling the unprocessed workpiece 202 to approach the grinding wheel 101 for grinding operations. The springs 204d serve as a buffer and adaptive adjuster; when the trigger rod 104 contacts the reference surface of the standard workpiece 201, the pushing distance can be automatically adjusted according to the shape and size of the standard workpiece 201.

[0039] Working principle:

[0040] The standard part 201 and the unprocessed flat neodymium iron boron magnet are placed on the two clamping positions of the clamping assembly 203, respectively. The fixing screw 203e is rotated. Since the fixing screw 203e is rotatably connected to the bidirectional ferrule 203b, the rotation of the fixing screw 203e causes the threaded fixing sleeve 203f to move on the fixing screw 203e. This movement, via the connecting rod 203g, causes the push block 203d to slide symmetrically within the bidirectional ferrule 203b, thereby clamping the standard part 201 and the unprocessed part 202.

[0041] Based on the size of the magnet and the clamping requirements, rotate the adjusting screw 203k. The adjusting nut 203l moves on the adjusting screw 203k, causing the movable plate 203c to move, adjusting the distance between the movable plate 203c and the bidirectional ferrule 203b, further optimizing the clamping effect and ensuring the magnet is fixed and stable.

[0042] Start the drive motor 102, which drives the grinding wheel 101 to rotate at high speed, providing power for the grinding operation.

[0043] The guide rod 204b on the fixed seat 204a of the linear drive assembly 204 guides the movement of the movable plate 203i. The movable plate 203i slides on the guide rod 204b, pushing the clamping assembly 203 towards the surface treatment unit 100. When the end of the trigger rod 104 abuts against the reference surface of the standard part 201, due to the buffering and adaptive adjustment of the spring 204d, the linear drive assembly 204 automatically adjusts the advance distance according to the shape and size of the standard part 201. At the same time, the working surface of the grinding wheel 101 abuts against the surface to be processed of the unprocessed part 202, and grinding of the unprocessed part 202 begins.

[0044] The rotary motor 205 is started, and its output drives the drive wheel 206 to rotate. The drive wheel 206 meshes with the driven wheel 207 on the reference plate 203a, thereby driving the reference plate 203a to rotate. The rotation of the reference plate 203a will cause the clamped standard part 201 and the unprocessed part 202 to rotate synchronously, so that the grinding wheel 101 can continuously grind different sides of the unprocessed part 202 without stopping the machine to change the grinding surface.

[0045] After all sides of the unprocessed part 202 have been polished, turn off the drive motor 102 to stop the rotation of the polishing wheel 101. Turn off the rotary motor 205 to stop the rotation of the magnet.

[0046] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A high-power grinding machine for processing neodymium iron boron magnets, characterized in that, include: The surface treatment unit (100) includes a grinding wheel (101) and a drive motor (102) for driving the grinding wheel (101) to rotate. The bottom end of the drive motor (102) is fixedly connected to a base (103), and a trigger rod (104) is provided on the base (103). An adaptive propulsion unit (200) includes a standard part (201), a workpiece (202), and a clamping assembly (203). The clamping assembly (203) includes two symmetrically arranged clamping stations, one station fixing the standard part (201) and the other station fixing the workpiece (202). A linear drive assembly (204) is provided on the side of the clamping assembly (203) away from the surface treatment unit (100). The end of the trigger rod (104) is in contact with the reference surface of the standard part (201), and the working surface of the grinding wheel (101) is in contact with the surface to be processed of the unprocessed part (202), and the two are in the same contact position.

2. The high-powered grinding machine for processing neodymium iron boron magnets according to claim 1, characterized in that, The clamping assembly (203) includes a reference disk (203a), a bidirectional ferrule (203b), and a movable disk (203c) arranged coaxially. The bidirectional ferrule (203b) has push blocks (203d) symmetrically slidably connected inside. The bidirectional ferrule (203b) has a fixed screw (203e) rotatably connected inside. The fixed screw (203e) has a fixed threaded sleeve (203f) threadedly connected to it. The fixed threaded sleeve (203f) and the two push blocks (203d) are respectively rotatably connected by connecting rods (203g).

3. The high-powered grinding machine for processing neodymium iron boron magnets according to claim 2, characterized in that, Two clamping stations are formed between the reference plate (203a) and the bidirectional ferrule (203b), and between the bidirectional ferrule (203b) and the movable plate (203c). Anti-slip pads (203h) are fixedly installed on the working surfaces of the reference plate (203a), the push block (203d), and the movable plate (203c).

4. The high-powered grinding machine for processing neodymium iron boron magnets according to claim 3, characterized in that, The clamping assembly (203) further includes a movable plate (203i), on which a plurality of support rods (203j) are provided. An adjusting screw (203k) is fixedly connected to the end of the movable disk (203c) away from the bidirectional sleeve (203b). An adjusting nut (203l) is threadedly connected to the adjusting screw (203k). A limiting ring (203m) is rotatably sleeved on the reference disk (203a), the adjusting nut (203l) and the bidirectional sleeve (203b). The plurality of limiting rings (203m) are respectively fixedly installed at the ends of different support rods (203j).

5. The high-powered grinding machine for processing NdFeB magnets according to claim 4, characterized in that, A rotary motor (205) is fixedly mounted on one of the support rods (203j). The output end of the rotary motor (205) is fixedly connected to a drive wheel (206). One end of the reference disk (203a) is fixedly connected to a driven wheel (207) that meshes with the drive wheel (206).

6. The high-powered grinding machine for processing neodymium iron boron magnets according to claim 5, characterized in that, The linear drive assembly (204) includes a fixed base (204a) arranged parallel to the movable plate (203i), a plurality of guide rods (204b) are provided on the fixed base (204a), and a plurality of connecting holes (204c) are provided on the movable plate (203i), and the guide rods (204b) slide through the connecting holes (204c).

7. The high-powered grinding machine for processing neodymium iron boron magnets according to claim 6, characterized in that, A spring (204d) is fitted on the outer surface of the guide rod (204b), and the two ends of the spring (204d) are respectively connected to the movable plate (203i) and the fixed seat (204a).