Neodymium-iron-boron magnet spinning device
By employing a dual-station design with two cutting heads in the neodymium iron boron magnet rotary cutting device, combined with a rotating module and a precisely controlled moving unit, the single-station design and vibration problems of traditional devices are solved, achieving efficient and stable rotary cutting results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN NIBBOH MAGNETS
- Filing Date
- 2025-07-25
- Publication Date
- 2026-06-16
AI Technical Summary
Traditional NdFeB magnet rotary cutting equipment suffers from problems such as single-station design, large cutting vibration of a single cutter head, lack of symmetrical force balancing mechanism, and low angle positioning accuracy of turntable drive. This results in a cumbersome processing procedure, vibration affecting the flatness of the cut surface, and insufficient angle positioning accuracy.
It adopts a dual-station design, using dual-head symmetrical cutting and combining a rotary module and a precisely controlled moving unit. Through servo motor driving worm gear transmission and lead screw slider structure, it achieves symmetrical force balance and precise feed, ensuring machining stability and accuracy.
It improves processing efficiency, reduces processing cycle, effectively counteracts vibration, enhances the flatness of the cut surface and the accuracy of angle positioning, and realizes flexible and efficient rotary cutting.
Smart Images
Figure CN224359428U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rotary cutting processing equipment, and more particularly to a rotary cutting processing equipment for neodymium iron boron magnets. Background Technology
[0002] Neodymium iron boron magnets, as high-performance permanent magnet materials, are widely used in motors, sensors, medical devices and other fields. In their processing, rotary cutting is one of the key forming processes, which requires ensuring high precision, high efficiency and low loss.
[0003] Traditional rotary cutting equipment for NdFeB magnets often employs a single-station design, cutting only one end of the magnet at a time. This necessitates frequent adjustments to the workpiece position or tool changes, making the processing cumbersome and lengthy. Furthermore, during single-head cutting, the radial eccentric force cannot be counteracted, easily leading to tool vibration, which in turn affects the flatness of the cut surface and may even cause the magnet to break. This is because the lack of a symmetrical force balancing mechanism makes it difficult to effectively suppress and transmit vibration. In addition, to meet the irregular shape requirements of magnets, traditional rotary drives often use belt drives, resulting in low angular positioning accuracy. Utility Model Content
[0004] In order to overcome the problems of traditional machining equipment, such as single-station design, large cutting vibration of single cutter head, lack of symmetrical force balancing mechanism and low positioning accuracy of turntable drive angle.
[0005] The technical solution of this utility model is as follows: a neodymium iron boron magnet rotary cutting processing device, including a worktable, a support leg at the lower end of the worktable for supporting the worktable, a rotating module inside the worktable, a turntable inside the rotating module for driving the turntable to rotate, a cutting table at the upper end of the turntable, and a clamping mechanism on the cutting table for fixing the neodymium iron boron magnet; two grooves are symmetrically opened at the upper end of the worktable, each groove is provided with a moving unit and a guide mechanism, the guide mechanism is connected to the moving unit for guiding the moving direction of the moving unit, and a support plate is provided inside the moving unit. The moving unit drives the support plate to move along the groove. The support plate is equipped with a feeding unit, and a receiving plate is connected inside the feeding unit. The feeding unit is used to adjust the position of the receiving plate. The receiving plate is equipped with a support plate, and a rotating shaft is rotatably connected inside the support plate. A rotary motor is installed on the end face of one of the support plates. The output shaft of the rotary motor is connected to one end of the rotating shaft for rotating the shaft. A rotary cutting wheel is installed on the outer wall of the rotating shaft for cutting the neodymium iron boron magnet fixed on the cutting table. The rotating module includes a support unit installed in the worktable and a power mechanism connected to the support unit. The power mechanism is used to drive the support unit to rotate.
[0006] Preferably, the support unit includes a bearing seat 1 located at the bottom of the worktable, and a support shaft is provided inside the bearing seat 1. The upper end of the support shaft is fixedly connected to the lower end of the turntable.
[0007] Preferably, the power mechanism includes a bearing housing two mounted on the inner wall of the worktable, a servo motor one mounted on the outer wall of the worktable, a worm gear connected to the output shaft of the servo motor one mounted inside the bearing housing two, and a worm wheel mounted on the outer wall of the support shaft, with the worm gear meshing with the worm wheel.
[0008] Preferably, the clamping mechanism includes a vertical plate mounted on the cutting table, with a screw threadedly connected to the vertical plate. One end of the screw has a knob, and the other end has a clamping block.
[0009] Preferably, the moving unit includes a bearing seat three disposed on the inner wall of the groove, a servo motor two disposed on the outer wall of the worktable, a lead screw connected to the output shaft of the servo motor two disposed inside the bearing seat three, a moving seat threadedly connected to the outer wall of the lead screw, and the upper end of the moving seat being fixedly connected to the lower end of the support plate.
[0010] Preferably, the guide mechanism includes a slide rail disposed at the bottom of the groove, a slider disposed on the slide rail, and the upper end of the slider being connected to the lower end of the movable seat.
[0011] Preferably, the feeding unit includes a cylinder mounted on a support plate. The upper end of the support plate is provided with a moving groove. A convex rail is provided at the bottom of the moving groove. A concave block is slidably connected on the convex rail. A support column is provided at the upper end of the concave block. The side end of the support column is connected to the output end of the cylinder. The upper end of the support column is connected to the lower end of the receiving plate.
[0012] The beneficial effects of this utility model are:
[0013] The dual-station cutting method improves processing efficiency compared to the traditional single-station design. The dual-station setting allows for simultaneous rotary cutting of both ends of the neodymium iron boron magnet, saving processing time. Moreover, the symmetrical cutting design of the dual cutter heads effectively counteracts radial eccentricity and solves the vibration defects that may occur when cutting with a single cutter head. Combined with the precise control of the rotary module and the moving unit, the entire processing process is more flexible and efficient. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of one embodiment of the neodymium iron boron magnet rotary cutting device of this utility model;
[0015] Figure 2 What is shown is Figure 1 A schematic diagram of the rotating module in the middle;
[0016] Figure 3 What is shown is Figure 1 A schematic diagram of the clamping mechanism;
[0017] Figure 4 What is shown is Figure 1 Schematic diagram of the structure of the moving unit;
[0018] Figure 5 What is shown is Figure 1 A schematic diagram of the structure of the intermediate feed unit.
[0019] Explanation of reference numerals in the attached diagram: 1. Worktable; 2. Support leg; 3. Turntable; 4. Cutting table; 5. Groove; 6. Support plate; 7. Receiving plate; 8. Support plate; 9. Rotating shaft; 10. Rotary motor; 11. Rotary cutting wheel; 12. Bearing seat one; 13. Support shaft; 14. Bearing seat two; 15. Servo motor one; 16. Worm gear; 17. Worm wheel; 18. Vertical plate; 19. Screw; 20. Knob; 21. Clamping block; 22. Bearing seat three; 23. Servo motor two; 24. Lead screw; 25. Moving seat; 26. Slide rail; 27. Slider; 28. Cylinder; 29. Moving groove; 30. Convex rail; 31. Concave block; 32. Support column. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0021] Please see Figure 1 - Figure 5This utility model provides an embodiment of a neodymium iron boron magnet rotary cutting processing device, including a worktable 1, with a support leg 2 at the lower end of the worktable 1 for supporting the worktable 1, a rotating module inside the worktable 1, a turntable 3 inside the rotating module for driving the turntable 3 to rotate, a cutting table 4 at the upper end of the turntable 3, and a clamping mechanism on the cutting table 4 for fixing the neodymium iron boron magnet; two grooves 5 are symmetrically formed at the upper end of the worktable 1, each groove 5 is provided with a moving unit and a guiding mechanism, the guiding mechanism is connected to the moving unit for guiding the movement. The moving unit has a support plate 6 inside. The moving unit drives the support plate 6 to move along the groove 5. The support plate 6 has a feeding unit. The feeding unit is connected to a receiving plate 7. The feeding unit is used to adjust the position of the receiving plate 7. The receiving plate 7 has a support plate 8. The support plate 8 is rotatably connected to a rotating shaft 9. One end face of the support plate 8 is equipped with a rotary motor 10. The output shaft of the rotary motor 10 is connected to one end of the rotating shaft 9 for rotating the rotating shaft 9. The outer wall of the rotating shaft 9 is equipped with a rotary cutting wheel 11 for cutting the neodymium iron boron magnet fixed on the cutting table 4.The rotating module includes a support unit housed within the worktable 1 and a power mechanism connected to the support unit. The power mechanism drives the support unit to rotate. The worktable 1 serves as the basic support platform for the entire rotary cutting device. The rotating module, located inside the worktable 1, is the component that drives the turntable 3 to rotate. The cutting table 4, located on the upper end of the turntable 3, is used to hold neodymium iron boron magnets. When the turntable 3 rotates under the drive of the rotating module, it can drive the cutting table 4 and the neodymium iron boron magnets fixed thereon to rotate together, thereby achieving the processing requirements of magnets at different angles. For example, during rotary cutting, the rotation of the turntable 3 allows different parts of the magnet to sequentially enter the processing range of the rotary cutting wheel 11, completing an all-around rotary cutting operation. The cutting table 4, located on the upper end of the turntable 3, is the direct support platform for the neodymium iron boron magnets to be rotary cut. The clamping mechanism is located on the cutting table 4, and its function is to fix the neodymium iron boron magnets, thereby ensuring the processing accuracy and stability. The guiding mechanism is connected to the moving unit and is used to guide the moving unit's direction of movement, ensuring that the moving unit can... The moving unit moves smoothly within the groove 5. Guided by the guide mechanism, the moving unit drives the support plate 6 to move along the groove 5, thereby adjusting the position of the support plate 6 and providing a foundation for the subsequent feeding of the rotary cutting wheel 11. The support plate 6 is set inside the moving unit and moves with the moving unit to provide mounting support for the feeding unit. The feeding unit is set on the support plate 6, and its function is to adjust the position of the receiving plate 7. Through the adjustment of the feeding unit, the rotary cutting wheel 11 can gradually approach or move away from the neodymium iron boron magnet according to the predetermined processing requirements, achieving precise rotary cutting of the magnet and ensuring the processing depth and accuracy. The rotary motor 10 serves as a power source, converting electrical energy into mechanical energy and driving the rotating shaft 9 to rotate through the output shaft. During the rotation of the rotating shaft 9, the rotary cutting wheel 11 set on its outer wall rotates together. While the rotary cutting wheel 11 rotates, through the coordinated action of the moving unit and the feeding unit, the rotary cutting wheel 11 comes into contact with the neodymium iron boron magnet fixed on the cutting table 4, thereby performing rotary cutting of the magnet and obtaining a magnet product that meets the requirements.
[0022] Please see Figure 2 - Figure 3In this embodiment, the support unit includes a bearing seat 12 disposed at the bottom of the workbench 1, a support shaft 13 disposed within the bearing seat 12, the upper end of the support shaft 13 being fixedly connected to the lower end of the turntable 3, the power mechanism includes a bearing seat 14 disposed on the inner wall of the workbench 1, a servo motor 15 disposed on the outer wall of the workbench 1, a worm gear 16 disposed within the bearing seat 14 and connected to the output shaft of the servo motor 15, a worm wheel 17 disposed on the outer wall of the support shaft 13, and the worm gear 16 meshing with the worm wheel 17, and the clamping mechanism includes a vertical plate 18 disposed on the cutting table 4, with a screw 19 threadedly connected to the vertical plate 18. A knob 20 is provided at one end of the screw 19, and a clamping block 21 is provided at the other end of the screw 19. The support unit is the basic structure in the rotating module that ensures the stable rotation of the turntable 3. The bearing housing 12 provides a precise and stable installation position for the support shaft 13, ensuring the coaxiality and perpendicularity of the support shaft 13 during rotation. The power mechanism provides the power to drive the turntable 3 to rotate. The bearing housing 14 is used to install the worm gear 16, providing stable support and a rotation axis 9 for the worm gear 16. The servo motor 15, which is installed on the outer wall of the worktable 1, serves as a power source and transmits power to the worm gear 16 through the output shaft. The worm gear 16 and the support shaft The worm gear 17 on the outer wall of the 13 meshes with the worm, forming a worm gear 17 and worm 16 transmission mechanism. This transmission mechanism has a self-locking characteristic, which can effectively prevent the turntable 3 from rotating unexpectedly due to external forces during processing, ensuring the stability and safety of processing. When the servo motor 15 starts, the output shaft drives the worm 16 to rotate. The rotational motion of the worm 16 is transmitted to the worm gear 17 through the meshing relationship, thereby driving the support shaft 13 to rotate, ultimately realizing the rotation of the turntable 3, meeting the needs of processing neodymium iron boron magnets at different angles. The clamping mechanism is used to firmly fix the neodymium iron boron magnets to ensure processing accuracy and quality. The cutting table 4 is equipped with... The vertical plate 18 provides the mounting base for the clamping mechanism. The screw 19, which is internally threaded to the vertical plate 18, enables precise adjustment of the position of the clamping block 21 through the transmission principle of the thread. When the knob 20 is rotated, the knob 20 drives the screw 19 to rotate. Since the screw 19 is threadedly connected to the vertical plate 18, the screw 19 can move along the thread direction during rotation, thereby driving the clamping block 21 to move closer to or away from the neodymium iron boron magnet. By properly rotating the knob 20, the clamping block 21 is made to fit tightly against the surface of the neodymium iron boron magnet, applying sufficient clamping force to firmly fix the magnet on the cutting table 4, ensuring the stability of the magnet during the rotary cutting process.
[0023] Please see Figure 4 - Figure 5In this embodiment, the moving unit includes a bearing seat 22 disposed on the inner wall of the groove 5, a servo motor 23 disposed on the outer wall of the worktable 1, a lead screw 24 disposed inside the bearing seat 22 and connected to the output shaft of the servo motor 23, a moving seat 25 threadedly connected to the outer wall of the lead screw 24, the upper end of the moving seat 25 being fixedly connected to the lower end of the support plate 6, the guiding mechanism including a slide rail 26 disposed at the bottom of the groove 5, a slider 27 disposed on the slide rail 26, the upper end of the slider 27 being connected to the lower end of the moving seat 25, the feeding unit including a cylinder 28 disposed on the support plate 6, a moving groove 29 also being provided at the upper end of the support plate 6, a convex rail 30 disposed at the bottom of the moving groove 29, a concave block 31 slidably connected on the convex rail 30, and a support at the upper end of the concave block 31. Support column 32, the side end of support column 32 is connected to the output end of cylinder 28, and the upper end of support column 32 is connected to the lower end of support plate 7. The moving unit is a structure that enables the horizontal movement of support plate 6 and the upper part within groove 5. By precisely controlling the moving distance, it meets the needs of different processing positions. Bearing seat 22 is set on the inner wall of groove 5 for mounting lead screw 24, providing stable support and rotation axis 9 for lead screw 24. Servo motor 23 is set on the outer wall of worktable 1 as a power source. When servo motor 23 is started, the output shaft drives lead screw 24 to rotate. Moving seat 25 is threaded to the outer wall of lead screw 24. Through the transmission principle of the thread, the rotational motion of lead screw 24 is converted into linear motion of moving seat 25. Since the upper end of moving seat 25 is connected to the cylinder 28, the rotational motion of lead screw 24 is converted into linear motion of moving seat 25. The lower end of the support plate 6 is fixedly connected, so the linear movement of the movable seat 25 will drive the support plate 6 to move together within the groove 5. By precisely controlling the speed and direction of the servo motor 23, the moving distance and speed of the movable seat 25 can be precisely controlled, thereby adjusting the position of the rotary cutting wheel 11 in the horizontal direction to meet the rotary cutting requirements of different positions of the neodymium iron boron magnet. The guide mechanism is used to guide the moving direction of the movable seat 25. The slide rail 26 set at the bottom of the groove 5 provides a sliding track for the slider 27. When the movable seat 25 moves under the drive of the lead screw 24, the slider 27 will slide along the slide rail 26. The cooperation between the slider 27 and the slide rail 26 ensures that the movable seat 25 can only move along the length of the slide rail 26, thereby ensuring the movement of the movable seat 25. To ensure dynamic stability, the feed unit is used to precisely adjust the position of the rotary cutting wheel 11 in the feed direction, achieving precise rotary cutting of the neodymium iron boron magnet. The cylinder 28 set on the support plate 6 serves as a power source, achieving the extension and retraction of the output end through changes in gas pressure. The moving groove 29 opened at the upper end of the support plate 6 and the convex rail 30 set at its bottom provide a sliding track for the concave block 31. When the output end of the cylinder 28 extends or retracts, it will drive the support column 32 to slide along the convex rail 30. By precisely controlling the air intake and exhaust volume of the cylinder 28, the moving distance and speed of the receiving plate 7 can be precisely controlled, thereby precisely adjusting the distance between the rotary cutting wheel 11 and the neodymium iron boron magnet to meet the requirements of different processing depths and precision, ensuring the quality and effect of rotary cutting.
[0024] Working principle: First, place the neodymium iron boron magnet to be processed in the clamping mechanism on the cutting table 4. By rotating the knob 20, the screw 19 drives the clamping block 21 to fit tightly against the magnet surface, applying sufficient clamping force to firmly fix the magnet on the cutting table 4.
[0025] Next, the servo motor 15 on the outer wall of the worktable 1 is started. The servo motor 15 transmits power to the worm gear 16 through the output shaft. The worm gear 16 meshes with the worm wheel 17 on the outer wall of the support shaft 13, driving the support shaft 13 to rotate, which in turn drives the turntable 3, the cutting table 4 and the neodymium iron boron magnet fixed on it to rotate together, and adjusts to the required processing angle.
[0026] Then, according to the requirements of the processing position, the servo motor 23 on the outer wall of the worktable 1 is started. The servo motor 23 drives the lead screw 24 to rotate through the output shaft. The movable seat 25 connected to the thread on the outer wall of the lead screw 24 is converted into linear motion under the transmission principle of the thread, which drives the support plate 6 and the feed unit, receiving plate 7, support plate 8, rotating shaft 9 and rotary cutting wheel 11 to move together in the groove 5 to the designated position.
[0027] At this time, the feeding unit starts to work. The cylinder 28 realizes the extension and retraction of the output end through the pressure change of the gas, which drives the support column 32 to slide along the convex rail 30, and precisely adjusts the position of the rotary cutting wheel 11 in the feeding direction, so that the rotary cutting wheel 11 gradually approaches the neodymium iron boron magnet.
[0028] Finally, the rotary motor 10 on the end face of the support plate 8 is started. The rotary motor 10 drives the rotating shaft 9 to rotate through the output shaft. During the rotation of the rotating shaft 9, the rotary cutting wheel 11 on its outer wall rotates together. The rotary cutting wheel 11 contacts the neodymium iron boron magnet fixed on the cutting table 4 and begins to perform rotary cutting on the magnet. After the processing is completed, the above steps are reversed to remove the processed magnet product and complete the entire workflow.
[0029] Through the above steps, a dual-station design is adopted, allowing simultaneous rotary cutting of both ends of a neodymium iron boron magnet, saving cycle time. The symmetrical cutting of the dual cutter heads offsets the radial eccentric force, solving vibration defects. Combined with precise control, the processing is more flexible and efficient. This solves the problems of traditional processing devices, such as single-station design, large cutting vibration of a single cutter head, lack of symmetrical force balancing mechanism, and low positioning accuracy of the rotary table's 3-drive angle.
Claims
1. A rotary cutting device for neodymium iron boron magnets, comprising a worktable (1), wherein a support leg (2) is provided at the lower end of the worktable (1) for supporting the worktable (1); characterized in that: The workbench (1) is equipped with a rotating module, which contains a turntable (3). The rotating module drives the turntable (3) to rotate. A cutting table (4) is located on the upper end of the turntable (3). A clamping mechanism is located on the cutting table (4) to fix the neodymium iron boron magnet. Two grooves (5) are symmetrically opened on the upper end of the workbench (1). Each groove (5) contains a moving unit and a guide mechanism. The guide mechanism is connected to the moving unit and is used to guide the moving direction of the moving unit. A support plate (6) is located inside the moving unit. The moving unit drives the support plate (6) to move along the groove. The groove (5) moves, and a feeding unit is provided on the support plate (6). A receiving plate (7) is connected inside the feeding unit. The feeding unit is used to adjust the position of the receiving plate (7). A support plate (8) is provided on the receiving plate (7). A rotating shaft (9) is rotatably connected inside the support plate (8). A rotary motor (10) is provided on the end face of one of the support plates (8). The output shaft of the rotary motor (10) is connected to one end of the rotating shaft (9) for rotating the rotating shaft (9). A rotary cutting wheel (11) is provided on the outer wall of the rotating shaft (9) for cutting the neodymium iron boron magnet fixed on the cutting table (4). The rotating module includes a support unit disposed in the worktable (1) and a power mechanism connected to the support unit, the power mechanism being used to drive the support unit to rotate.
2. The neodymium iron boron magnet rotary cutting device according to claim 1, characterized in that: The support unit includes a bearing seat (12) located at the bottom of the workbench (1), and a support shaft (13) is provided inside the bearing seat (12). The upper end of the support shaft (13) is fixedly connected to the lower end of the turntable (3).
3. The neodymium iron boron magnet rotary cutting device according to claim 2, characterized in that: The power mechanism includes a bearing seat 2 (14) set on the inner wall of the worktable (1), a servo motor 1 (15) set on the outer wall of the worktable (1), a worm (16) connected to the output shaft of the servo motor 1 (15) set inside the bearing seat 2 (14), and a worm wheel (17) set on the outer wall of the support shaft (13). The worm (16) and the worm wheel (17) are meshed and connected.
4. The neodymium iron boron magnet rotary cutting device according to claim 3, characterized in that: The clamping mechanism includes a vertical plate (18) set on the cutting table (4), a screw (19) is internally threaded on the vertical plate (18), a knob (20) is set at one end of the screw (19), and a clamping block (21) is set at the other end of the screw (19).
5. The neodymium iron boron magnet rotary cutting device according to claim 4, characterized in that: The moving unit includes a bearing seat three (22) set on the inner wall of the groove (5), a servo motor two (23) set on the outer wall of the worktable (1), a lead screw (24) connected to the output shaft of the servo motor two (23) set in the bearing seat three (22), a moving seat (25) threadedly connected to the outer wall of the lead screw (24), and the upper end of the moving seat (25) fixedly connected to the lower end of the support plate (6).
6. The neodymium iron boron magnet rotary cutting device according to claim 5, characterized in that: The guiding mechanism includes a slide rail (26) set at the bottom of the groove (5), a slider (27) set on the slide rail (26), and the upper end of the slider (27) is connected to the lower end of the movable seat (25).
7. The neodymium iron boron magnet rotary cutting device according to claim 6, characterized in that: The feeding unit includes a cylinder (28) mounted on a support plate (6). The upper end of the support plate (6) is also provided with a moving groove (29). The bottom of the moving groove (29) is provided with a convex rail (30). A concave block (31) is slidably connected on the convex rail (30). A support column (32) is provided at the upper end of the concave block (31). The side end of the support column (32) is connected to the output end of the cylinder (28). The upper end of the support column (32) is connected to the lower end of the receiving plate (7).