Neodymium iron boron pole machining tool
Patent Information
- Application Number
- CN202522105686.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-29
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2035-09-29
AI Technical Summary
[0003]为解决上述工艺复杂、生产周期长、成本高的问题,本实用新型提供一种钕铁硼柱加工刀具,具体技术方案为:
本实用新型提供的一种钕铁硼柱加工刀具能够直接得到圆柱形的钕铁硼柱,无需切方和滚圆,既能减少工艺步骤,同时也极大地减少了材料的浪费。
Smart Images

Figure CN224750144U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a cutting tool, and more particularly to a cutting tool for machining neodymium iron boron pillars. Background Technology
[0002] Cylindrical magnets are mainly made by magnetizing neodymium iron boron (NdFeB) pillars. Current NdFeB pillar manufacturing processes include: cutting square strips, rolling, height adjustment, centerless grinding, and end face grinding with a tripod. These processes involve numerous steps, multiple pieces of equipment, and require multiple turnovers, resulting in long production cycles and high processing costs. Furthermore, the rolling step involves large cutting volumes, generating significant waste. Utility Model Content
[0003] To address the issues of complex processes, long production cycles, and high costs mentioned above, this utility model provides a neodymium iron boron pillar machining tool. The specific technical solution is as follows: A tool for machining NdFeB blocks includes: a tool holder with a water inlet hole; an outer circular cutting head disposed at the bottom of the tool holder and communicating with the water inlet hole; and an outer cutting layer disposed at the end of the outer circular cutting head for machining NdFeB blocks into cylindrical shapes.
[0004] Preferably, the outer cutting layer includes a diamond layer.
[0005] Preferably, it further includes: an inner circular cutter head, disposed at the bottom of the cutter shank and located inside the outer circular cutter head, the inner circular cutter head and the outer circular cutter head being arranged coaxially; and an inner cutting layer, disposed at the end of the inner circular cutter head, for hollowing out neodymium iron boron blocks.
[0006] Furthermore, a water passage hole is provided at the bottom of the water inlet hole, and the water passage hole communicates with the cavity between the inner circular cutter head and the outer circular cutter head.
[0007] Furthermore, the inner cutting layer includes a diamond layer.
[0008] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a tool for machining NdFeB pillars that can directly produce cylindrical NdFeB pillars without the need for squaring and rounding, which reduces process steps and greatly reduces material waste. Attached Figure Description
[0009] Figure 1 This is a perspective view of this application; Figure 2 This is a cross-sectional view of this application; Figure 3 This is a front view of this application; Figure 4 This is a schematic diagram of the application installed on the processing equipment; Figure 5 This is a schematic diagram of how NdFeB blocks are processed into NdFeB pillars. Detailed Implementation
[0010] The present invention will now be further described with reference to the accompanying drawings.
[0011] like Figures 1 to 5 As shown, a tool for machining NdFeB blocks includes a tool holder 51, an outer cylindrical cutter head 52, and an outer cutting layer 53. Both the tool holder 51 and the outer cylindrical cutter head 52 are cylindrical. The outer cylindrical cutter head 52 is located at the bottom of the tool holder 51 and is concentrically arranged. A water inlet hole 56 is provided at the center of the tool holder 51, which communicates with the outer cylindrical cutter head 52. The outer cutting layer 53 is located at the end of the outer cylindrical cutter head 52 and is used for cylindrical machining of NdFeB blocks 9. The outer cutting layer 53 includes a diamond abrasive layer. The outer cutting layer 53 mainly processes the NdFeB blocks 9 by grinding. Since the outer cylindrical cutter head 52 is cylindrical and matches the NdFeB block 91 to be machined, a cylindrical NdFeB block 91 can be obtained after the outer cylindrical cutter head 52 is machined. After machining, the NdFeB block 91 can be removed.
[0012] Grinding can improve the quality of the outer surface of NdFeB pillar 91, eliminating the need for re-grinding the outer surface and reducing process steps.
[0013] To obtain hollow NdFeB pillars 91, the pillar-cutting tool 5 also includes an inner circular cutter head 54 and an inner cutting layer 55. The inner circular cutter head 54 is located at the bottom of the tool holder 51 and inside the outer circular cutter head 52, and the inner circular cutter head 54 and the outer circular cutter head 52 are arranged coaxially. The inner cutting layer 55 is located at the end of the inner circular cutter head 54 and is used to hollow out the NdFeB block 9. The inner cutting layer 55 includes a diamond abrasive layer. The inner circular cutter head 54 and the outer circular cutter head 52 simultaneously cut the NdFeB block 9 to obtain a cylindrical NdFeB pillar 91, eliminating the need for subsequent drilling and reducing process steps.
[0014] To ensure cooling effect, a water inlet 56 is also provided at the bottom of a water passage 57, which is connected to the cavity between the inner round cutter head 54 and the outer round cutter head 52.
[0015] A new type of neodymium iron boron column machining tool eliminates the need for square cutting and rounding, allowing for direct square column machining, which significantly reduces production steps and saves production and labor costs.
[0016] By eliminating the cutting and rolling process, processing efficiency is significantly improved and the production cycle is shortened.
[0017] Traditional processes generate significant waste during the square-to-round cutting process. However, a new type of neodymium iron boron (NdFeB) cylinder machining tool maximizes raw material utilization, reduces waste, improves material efficiency, and further lowers costs. Hollow cup products, which are high-performance radial cylinders, typically generate 75% magnetic putty and approximately 25% scrap material during traditional square-to-rounding processes. Using a cylinder-removing machine, scrap material accounts for 65% and magnetic putty 35%. Taking D6.3(M)-D3*11 as an example, this reduces raw material costs.
[0018] A new type of tool for machining NdFeB pillars does not damage the material during processing, protecting its integrity and ensuring product performance. This damage-free machining method reduces scrap rates, increases product yield, and saves costs for companies. Because it does not damage the material, the machined products exhibit more stable performance, meeting diverse customer needs.
[0019] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these embodiments will all fall within the protection scope of the claims of this utility model.
Claims
1. A cutting tool for machining neodymium iron boron pillars, characterized in that, include: The handle (51) is provided with a water inlet (56); An outer circular cutter head (52) is located at the bottom of the cutter shank (51) and communicates with the water inlet (56); and An outer cutting layer (53) is provided at the end of the outer circular cutter head (52) for cylindrical machining of neodymium iron boron blocks (9).
2. The neodymium iron boron pillar machining tool according to claim 1, characterized in that, The outer cutting layer (53) includes a diamond layer.
3. The neodymium iron boron pillar machining tool according to claim 1, characterized in that, Also includes: An inner circular cutting head (54) is disposed at the bottom of the tool holder (51) and located inside the outer circular cutting head (52). The inner circular cutting head (54) and the outer circular cutting head (52) are arranged coaxially. An inner cutting layer (55) is provided at the end of the inner circular cutter head (54) for hollowing out the neodymium iron boron block (9).
4. The neodymium iron boron pillar machining tool according to claim 3, characterized in that, The bottom of the water inlet (56) is also provided with a water passage (57), which is connected to the cavity between the inner round cutter head (54) and the outer round cutter head (52).
5. A neodymium iron boron pillar machining tool according to claim 3, characterized in that, The inner cutting layer (55) includes a diamond layer.