Rare earth permanent magnet magnetizing positioning device
The rare-earth permanent magnet magnetization and positioning device driven by electric push rods and servo motors achieves precise clamping and automated rotation, solving the problems of positioning accuracy and efficiency, and improving magnetization quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU MINGRUI MAGNETICS CO LTD
- Filing Date
- 2025-04-15
- Publication Date
- 2026-05-01
AI Technical Summary
Existing rare earth permanent magnet magnetization and positioning devices suffer from insufficient positioning accuracy, leading to positional deviations that affect the magnetization effect. Furthermore, they are inefficient in operation, making it difficult to achieve automated continuous production and increasing labor costs.
The system uses an electric push rod to drive the slider and clamping components to slide within the groove for precise clamping and positioning. A servo motor drives the support platform to rotate, enabling multiple permanent magnets to automatically rotate to the magnetization position, reducing manual intervention.
It improves the magnetization accuracy and operational efficiency of rare earth permanent magnets, adapts to permanent magnets of different specifications, shortens magnetization waiting time, and improves magnetization quality and production efficiency.
Smart Images

Figure CN224190754U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of permanent magnet magnetization technology, and in particular to a rare earth permanent magnet magnetization and positioning device. Background Technology
[0002] Rare earth permanent magnet materials refer to permanent magnet materials containing rare earth metals as alloying elements. Neodymium iron boron permanent magnets, as the third generation of rare earth permanent magnet materials, have a very high performance-price ratio and are known as the "King of Permanent Magnets" in modern times. They are widely used in industries such as energy, transportation, machinery, medical, IT, and home appliances.
[0003] In the production process of rare earth permanent magnets, magnetization is one of the key steps. Currently, some existing rare earth permanent magnet magnetization and positioning devices have positioning accuracy that is difficult to meet the requirements of high-precision products. During the magnetization process, the permanent magnet is prone to positional displacement, resulting in poor magnetization effect and affecting product performance. Moreover, some existing devices have low operating efficiency, making it difficult to achieve automated continuous production, which increases labor costs and production time. In order to address this technical problem, this application proposes a rare earth permanent magnet magnetization and positioning device. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a rare earth permanent magnet magnetization and positioning device. This device uses an electric push rod to drive a slider and clamping components to slide within a groove, enabling precise clamping and positioning of the rare earth permanent magnet. This ensures accurate magnetization during magnetization, improves magnetization quality, and allows multiple permanent magnets to be rotated sequentially to the magnetization position via a servo motor. This eliminates the need for frequent manual replacement of magnet positions, thus improving magnetization efficiency.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A rare earth permanent magnet magnetizing and positioning device includes an operating table. The upper end of the operating table is connected to a support platform via a rotating assembly. The upper end of the support platform has multiple sliding grooves. Slider blocks are slidably connected to both sides of the inner wall of each sliding groove. A clamping member is fixedly connected to the upper end of each slider. A driving assembly is provided at the lower end of the clamping member. A support frame is fixedly connected to the rear side of the upper end of the operating table. A driving cylinder is installed at the upper end of the support frame. A connecting plate is fixedly connected to the driving end of the driving cylinder. A magnetizing coil is installed at the lower end of the connecting plate.
[0007] Furthermore, the rotating assembly includes a servo motor mounted on the lower end of the operating table, a sector gear fixedly connected to the drive end of the servo motor, and the lower end of the sector gear rotatably connected to the upper end of the operating table.
[0008] Furthermore, the rotating assembly also includes a second rotating shaft rotatably connected to the middle of the support platform. The lower end of the second rotating shaft is rotatably connected to the upper end of the operating platform. A flat gear is fixedly connected to the lower side of the outer wall of the second rotating shaft. The outer wall of the flat gear meshes with one side of the outer wall of the sector gear.
[0009] Furthermore, the drive assembly includes a rotating shaft rotatably connected to the lower end of the support platform, a turntable fixedly connected to the middle of the rotating shaft, and fixed rods fixedly connected to both sides of the lower end of the turntable.
[0010] Furthermore, the drive assembly also includes a connecting rod fixedly connected to one side of the lower end of the clamping member, and an arc-shaped rod rotatably connected to the lower end of the connecting rod, with the opposite end of the arc-shaped rod rotatably connected to the outer wall of the fixed rod.
[0011] Furthermore, a plurality of electric push rods are installed at the lower end of the support platform, and a fixing block is fixedly connected to the drive end of the electric push rod. The middle part of the fixing block is fixedly connected to the outer wall of a connecting rod on one side.
[0012] Furthermore, guide rods are fixedly connected to the upper left and right sides of the operating table. The upper ends of the guide rods are fixedly connected to the lower inner end of the support frame, and the outer walls of the guide rods are slidably connected to the middle left and right sides of the connecting plate.
[0013] This utility model has the following beneficial effects:
[0014] 1. In this utility model, the slider and clamping parts are driven by an electric push rod to slide in the groove, which can achieve precise clamping and positioning of rare earth permanent magnets, ensure the accurate position of permanent magnets during magnetization, improve magnetization quality, and adapt to rare earth permanent magnets of different specifications by adjusting the position of the clamping parts, thus improving the versatility of the device.
[0015] 2. In this utility model, the servo motor drives the support platform to rotate, which can rotate the permanent magnets at different positions on the support platform to the underside of the magnetization coil. When a group of positioned permanent magnets is being magnetized, other positioning stations can perform preparatory work such as feeding and positioning adjustment. After magnetization is completed, the support platform rotates to send the next prepared permanent magnet to the magnetization position, thereby greatly shortening the magnetization waiting time and improving the overall operation efficiency. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of a rare earth permanent magnet magnetization and positioning device proposed in this utility model.
[0017] Figure 2 A schematic diagram of the support platform for a rare earth permanent magnet magnetization and positioning device proposed in this utility model.
[0018] Figure 3This is a schematic diagram of the drive assembly of a rare earth permanent magnet magnetization and positioning device proposed in this utility model.
[0019] Figure 4 This is a schematic diagram of the rotating component of a rare earth permanent magnet magnetization and positioning device proposed in this utility model.
[0020] Legend:
[0021] 1. Operating table; 2. Support frame; 3. Drive cylinder; 4. Connecting plate; 5. Magnetizing coil; 6. Guide rod; 7. Support platform; 8. Clamping component; 9. Slide groove; 10. Slider; 11. Electric push rod; 12. Fixing block; 13. Connecting rod; 14. Arc rod; 15. Fixing rod; 16. Turntable; 17. Rotating shaft one; 18. Servo motor; 19. Sector gear; 20. Flat gear; 21. Rotating shaft two. Detailed Implementation
[0022] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Reference Figures 1-3 This utility model provides an embodiment of a rare earth permanent magnet magnetization and positioning device, including an operating table 1. A support platform 7 is connected to the upper end of the operating table 1 via a rotating assembly. Multiple sliding grooves 9 are formed on the upper end of the support platform 7. Sliding blocks 10 are slidably connected to both sides of the inner wall of each sliding groove 9. A clamping member 8 is fixedly connected to the upper end of each sliding block 10. A driving assembly is provided at the lower end of the clamping member 8. The driving assembly includes a rotating shaft 17 rotatably connected to the lower end of the support platform 7. A turntable 16 is fixedly connected to the middle of the rotating shaft 17. Fixed rods 15 are fixedly connected to both sides of the lower end of the turntable 16. The driving assembly also includes a connecting rod 13 fixedly connected to one side of the lower end of the clamping member 8. An arc-shaped rod is rotatably connected to the lower end of the connecting rod 13. The opposite end of the arc rod 14 is rotatably connected to the outer wall of the fixed rod 15. Multiple electric push rods 11 are installed at the lower end of the support platform 7. The driving end of the electric push rod 11 is fixedly connected to the fixed block 12. The middle part of the fixed block 12 is fixedly connected to the outer wall of the connecting rod 13 on one side. The upper rear side of the operating platform 1 is fixedly connected to the support frame 2. The upper end of the support frame 2 is equipped with a driving cylinder 3. The driving end of the driving cylinder 3 is fixedly connected to the connecting plate 4. The lower end of the connecting plate 4 is equipped with a magnetizing coil 5. The upper left and right sides of the upper end of the operating platform 1 are fixedly connected to the guide rods 6. The upper end of the guide rods 6 is fixedly connected to the lower inner end of the support frame 2. The outer wall of the guide rods 6 is slidably connected to the middle left and right sides of the connecting plate 4.
[0024] Specifically, the electric push rod 11 is activated, and its driving end drives the fixed block 12 to move, which in turn pushes the connecting rod 13 to move. The connecting rod 13 drives the arc rod 14 to rotate around the fixed rod 15, so that the clamping member 8 connected to the connecting rod 13 slides relative to it. The slider 10 at the lower end of the clamping member 8 slides in the slide groove 9 as the clamping member 8 moves, providing precise guidance for the clamping member 8, so that the clamping member 8 can clamp and position the rare earth permanent magnet, thereby ensuring the accurate position of the permanent magnet during magnetization and improving the magnetization quality. By activating the driving cylinder 3, its driving end pushes the connecting plate 4 to slide down along the guide rod 6, so that the magnetizing coil 5 approaches and magnetizes the rare earth permanent magnet that has been positioned on the support platform 7. After the magnetization is completed, the driving cylinder 3 drives the connecting plate 4 and the magnetizing coil 5 to move up and reset.
[0025] Reference Figure 2 and Figure 4 The rotating assembly includes a servo motor 18 mounted on the lower end of the operating table 1. A sector gear 19 is fixedly connected to the drive end of the servo motor 18. The lower end of the sector gear 19 is rotatably connected to the upper end of the operating table 1. The rotating assembly also includes a rotating shaft 21 rotatably connected to the middle of the support platform 7. The lower end of the rotating shaft 21 is rotatably connected to the upper end of the operating table 1. A spur gear 20 is fixedly connected to the lower side of the outer wall of the rotating shaft 21. The outer wall of the spur gear 20 meshes with one side of the outer wall of the sector gear 19.
[0026] Specifically, the servo motor 18 is turned on, and its drive end drives the sector gear 19 to rotate. The sector gear 19 meshes with the spur gear 20, which in turn drives the rotating shaft 21 and the support platform 7 to rotate. This allows the permanent magnets at different positions on the support platform 7 to be rotated below the magnetization coil 5. When a set of positioned permanent magnets is being magnetized, other positioning stations can perform preparatory work such as loading and positioning adjustments. After magnetization is completed, the support platform 7 rotates to send the next prepared permanent magnet to the magnetization position, thereby greatly shortening the magnetization waiting time and improving the overall operating efficiency.
[0027] Working principle: In use, first place the rare earth permanent magnet to be magnetized between the clamping parts 8 on the support platform 7. Then, start the electric push rod 11, whose drive end drives the fixed block 12 to move, which in turn pushes the connecting rod 13. The connecting rod 13 drives the arc rod 14 to rotate around the fixed rod 15, causing the two clamping parts 8 to move relative to each other, thereby clamping and positioning the rare earth permanent magnet. Then, start the servo motor 18, whose drive end drives the sector gear 19 to rotate, which in turn drives the spur gear 20 to rotate. The spur gear 20 drives the rotating shaft 21 and the support platform. Rotating the 7th column allows the permanent magnets in different positions to be rotated below the magnetizing coil 5. Then, the drive cylinder 3 is activated, and its drive end pushes the connecting plate 4 to slide downward along the guide rod 6, so that the magnetizing coil 5 approaches and magnetizes the rare earth permanent magnets that have been positioned on the support platform 7. During the magnetization process, the remaining rare earth permanent magnets to be magnetized can be placed between the remaining three sets of clamping parts 8. After the magnetization is completed, the servo motor 18 drives the support platform 7 to rotate, directly rotating the positioned rare earth permanent magnets below the magnetizing coil 5, thereby improving the magnetization efficiency.
[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A device for positioning a rare earth permanent magnet during magnetization, characterized in that The system includes an operating table (1), the upper end of which is connected to a support platform (7) via a rotating assembly. The upper end of the support platform (7) has multiple sliding grooves (9). Slider blocks (10) are slidably connected to both sides of the inner wall of the sliding grooves (9). A clamping member (8) is fixedly connected to the upper end of the slider (10). A driving assembly is provided at the lower end of the clamping member (8). A support frame (2) is fixedly connected to the rear side of the upper end of the operating table (1). A driving cylinder (3) is installed at the upper end of the support frame (2). A connecting plate (4) is fixedly connected to the driving end of the driving cylinder (3). A magnetizing coil (5) is installed at the lower end of the connecting plate (4).
2. The device for positioning a magnetized rare earth permanent magnet according to claim 1, wherein: The rotating assembly includes a servo motor (18) mounted on the lower end of the operating table (1), and a sector gear (19) is fixedly connected to the drive end of the servo motor (18). The lower end of the sector gear (19) is rotatably connected to the upper end of the operating table (1).
3. The rare earth permanent magnet magnetization and positioning device according to claim 1, characterized in that: The rotating assembly also includes a rotating shaft 21 rotatably connected to the middle of the support platform (7). The lower end of the rotating shaft 21 is rotatably connected to the upper end of the operating platform (1). A flat gear (20) is fixedly connected to the lower side of the outer wall of the rotating shaft 21. The outer wall of the flat gear (20) meshes with the outer wall of one side of the sector gear (19).
4. The rare earth permanent magnet magnetizing and positioning device according to claim 1, characterized in that: The drive assembly includes a rotating shaft (17) rotatably connected to the lower end of the support platform (7), a turntable (16) fixedly connected to the middle of the rotating shaft (17), and fixed rods (15) fixedly connected to both sides of the lower end of the turntable (16).
5. The rare earth permanent magnet magnetization and positioning device according to claim 1, characterized in that: The drive assembly also includes a connecting rod (13) fixedly connected to one side of the lower end of the clamping member (8). The lower end of the connecting rod (13) is rotatably connected to an arc-shaped rod (14), and the opposite end of the arc-shaped rod (14) is rotatably connected to the outer wall of the fixed rod (15).
6. The rare earth permanent magnet magnetization and positioning device according to claim 1, characterized in that: The lower end of the support platform (7) is equipped with a plurality of electric push rods (11), and the driving end of the electric push rod (11) is fixedly connected to a fixing block (12). The middle part of the fixing block (12) is fixedly connected to the outer wall of a connecting rod (13) on one side.
7. The device for positioning a magnetized rare earth permanent magnet according to claim 1, wherein: Guide rods (6) are fixedly connected to the upper left and right sides of the operating table (1). The upper end of the guide rod (6) is fixedly connected to the lower end of the support frame (2). The outer wall of the guide rod (6) is slidably connected to the middle left and right sides of the connecting plate (4).