A magnetizing device for anisotropic planar multipole magnetic rings

Abstract

This utility model provides a magnetizing device for anisotropic planar multipole magnetic rings, belonging to the technical field of magnetizing devices. It includes a magnetizer body with a magnetizing cavity. A mounting frame is installed within the magnetizing cavity, and a stud is threadedly connected to the mounting frame at the axis of the magnetizing cavity. The mounting frame has a threaded hole of a size adapted to the stud. The stud has a tapered positioning block for passing through the threaded hole. The stud rotates helically so that the maximum outer diameter of the portion of the tapered positioning block exposed in the threaded hole is adapted to the inner diameter of the magnetic ring blank. This design improves the versatility of the magnetizing device.

Description

Technical Field

[0001] This utility model relates to the field of magnetization device technology, and in particular to a magnetization device for anisotropic planar multipole magnetic rings. Background Technology

[0002] An anisotropic planar multipole magnetic ring is a special type of magnetic ring characterized by having multiple magnetic poles and exhibiting anisotropic magnetic properties within a plane. Its pole distribution is as follows: Figure 1 As shown.

[0003] In the production process of anisotropic planar multipole magnetic rings, it is usually necessary to first cast them into a ring-shaped column, then cut the ring column into multiple magnetic ring blanks, then polish them, and finally magnetize the magnetic ring blanks using a magnetizer. The magnetizer includes a magnetizer body with a magnetizing cavity. The magnetizer body is designed with coils to distribute multiple magnetizing zones circumferentially within the magnetizing cavity. By passing through multiple magnetizing zones, the corresponding magnetic poles can be applied to the magnetic ring blanks.

[0004] During magnetization, to ensure consistent magnetic strength across all poles of the magnetic ring, it must be positioned at the center of the magnetization chamber. Traditional magnetizers typically install a positioning post at the center of the chamber with an outer diameter matching the inner diameter of the magnetic ring blank, allowing the blank to be fitted onto the post. However, different sizes of magnetic ring blanks have varying inner diameters, meaning a single positioning post cannot accommodate multiple sizes, resulting in insufficient versatility in traditional magnetizers. Utility Model Content

[0005] In view of the above problems, this utility model provides a magnetizing device for anisotropic planar multipole magnetic rings.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A magnetizing device for anisotropic planar multipole magnetic rings is provided, including a magnetizer body, a magnetizing cavity on the magnetizer body, a mounting frame inside the magnetizing cavity, a stud threadedly connected to the mounting frame at the axis of the magnetizing cavity, a threaded hole of a size adapted to the stud on the mounting frame, a conical positioning block for passing through the threaded hole on the stud, and the stud being helically rotated so that the maximum outer diameter of the portion of the conical positioning block exposed in the threaded hole is adapted to the inner diameter of the magnetic ring blank.

[0007] Furthermore, the mounting frame includes a fixed frame and a movable frame. The fixed frame is disposed on the bottom wall of the magnetization cavity, and the movable frame is movably connected to the fixed frame along the depth direction of the magnetization cavity. The fixed frame is provided with an elastic element for driving the movable frame away from the fixed frame and exposing it to the magnetization cavity. The magnetizer body is provided with a pressing element for pressing down the magnetic ring blank and overcoming the elastic force of the elastic element so that the magnetic ring blank enters the magnetization cavity.

[0008] Furthermore, the pressing component includes a first pressing plate and a second pressing plate. The first pressing plate is vertically slidably disposed on the magnetizer body, and the second pressing plate is vertically slidably disposed below the first pressing plate. The magnetizer body is provided with a first driving member for driving the first pressing plate to move vertically downward so that the second pressing plate contacts the magnetic ring blank. The first pressing plate is provided with a second driving member for driving the second pressing plate to move vertically downward so that the magnetic ring blank enters the magnetization cavity.

[0009] Furthermore, a flexible pad is provided on the side of the second pressure plate near the mounting bracket.

[0010] Furthermore, the elastic element is a spring, which is made of an antimagnetic material.

[0011] Furthermore, the top of the conical positioning block is provided with a block for gripping, the outer diameter of which is smaller than the minimum outer diameter of the conical positioning block.

[0012] The beneficial effects of this utility model are as follows: rotating the stud can drive the conical positioning block to move vertically, thereby adjusting the part of the conical positioning block exposed in the threaded hole. This allows the conical positioning block to be adapted to magnetic ring blanks of various inner diameters. When the magnetic ring blank is inserted into the outside of the conical positioning block, the conical surface of the conical positioning block contacts the inner edge of the bottom of the magnetic ring blank, thus achieving the purpose of positioning and improving the versatility of the magnetization device. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a magnetizing device for an anisotropic planar multipole magnetic ring according to an embodiment of this application.

[0014] Figure 2 This is a schematic diagram of the magnetization state of a magnetization device for an anisotropic planar multipole magnetic ring according to an embodiment of this application.

[0015] Figure 3 This is a schematic diagram of the mounting frame structure of a magnetizing device for anisotropic planar multipole magnetic ring according to an embodiment of this application.

[0016] Figure 4 This is a cross-sectional view of the movable frame of a magnetizing device for an anisotropic planar multipole magnetic ring according to an embodiment of this application.

[0017] Figure 5 This is a schematic diagram of the pressing component of a magnetizing device for anisotropic planar multipole magnetic rings according to an embodiment of this application.

[0018] The components include: 1. Magnetizer body; 11. Magnetizing cavity; 2. Mounting frame; 21. Fixed frame; 22. Movable frame; 221. Guide rod; 3. Stud; 4. Conical positioning block; 5. Elastic component; 6. Pressing component; 61. First pressing plate; 62. Second pressing plate; 7. First driving component; 8. Second driving component; 9. Flexible pad; 10. Block; 20. Magnetic ring blank. Detailed Implementation

[0019] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0020] This application discloses a magnetizing device for anisotropic planar multipole magnetic rings, referring to... Figure 1 , Figure 2 and Figure 3 The device includes a magnetizer body 1, a magnetizing cavity 11, and a mounting bracket 2 inside the magnetizing cavity 11. A stud 3 is threadedly connected to the mounting bracket 2 at the axis of the magnetizing cavity 11. The mounting bracket 2 has a threaded hole of a size adapted to the stud 3, and a tapered positioning block 4 for passing through the threaded hole is integrally fixed on the stud 3. The spiral rotation of the stud 3 allows the maximum outer diameter of the portion of the tapered positioning block 4 exposed in the threaded hole to be adapted to the inner diameter of the magnetic ring blank 20.

[0021] In this embodiment, based on the inner diameter of the anisotropic planar multipole magnetic ring blank 20 to be magnetized, rotating the stud 3 drives the conical positioning block 4 to move vertically, thereby adjusting the portion of the conical positioning block 4 exposed in the threaded hole. When the magnetic ring blank 20 is inserted onto the outside of the conical positioning block 4, the conical surface of the conical positioning block 4 contacts the inner edge of the bottom of the magnetic ring blank 20, thus achieving the positioning purpose. When switching to magnetize a magnetic ring blank 20 with another inner diameter, only the portion of the conical positioning block 4 exposed in the threaded hole needs to be adjusted by rotating the stud 3 to adapt to the corresponding inner diameter magnetic ring blank 20. The magnetizing device for anisotropic planar multipole magnetic rings of this application can magnetize magnetic ring blanks 20 of anisotropic planar multipole magnetic rings with various inner diameters, thus improving the versatility of the magnetizing device.

[0022] Reference Figure 4 The mounting frame 2 includes a fixed frame 21 and a movable frame 22. The fixed frame 21 is disposed on the bottom wall of the magnetization cavity 11, and the movable frame 22 is movably connected to the fixed frame 21 along the depth direction of the magnetization cavity 11. The fixed frame 21 is provided with an elastic element 5 for driving the movable frame 22 away from the fixed frame 21 and exposing it from the magnetization cavity 11. The magnetizer body 1 is provided with a pressing element 6 for pressing down the magnetic ring blank 20 and overcoming the elastic force of the elastic element 5 to allow the magnetic ring blank 20 to enter the magnetization cavity 11.

[0023] In this embodiment, the elastic element 5 includes a spring made of an antimagnetic material, such as phosphor bronze, to prevent the spring from being magnetized by the magnetizing cavity 11. A guide rod 221 is provided at the bottom of the movable frame 22, and a guide hole is provided on the fixed frame 21 for the guide rod 221 to pass through. The spring is sleeved on the outside of the guide rod 221, and both ends of the spring are connected to the fixed frame 21 and the movable frame 22 respectively, so as to drive the movable frame 22 away from the fixed frame 21.

[0024] Because the outer diameter of some magnetic ring blanks 20 is similar to the inner diameter of the magnetizing cavity 11, the gap between the outer wall of the magnetic ring blank 20 and the inner wall of the magnetizing cavity 11 is small, making it difficult for workers to insert their fingers into the gap and causing inconvenience in material handling. In this embodiment, after the magnetic ring blank 20 is placed on the movable frame 22, the pressing component 6 can press the magnetic ring blank 20 and the movable frame 22 together into the magnetizing cavity 11. After magnetization is completed, the pressing component 6 releases the magnetic ring blank 20, and the movable frame 22 can be moved under the elastic force of the spring to expose the magnetizing cavity 11, so as to pick up and put down the magnetic ring blank 20, thereby improving the convenience of material handling.

[0025] Specifically, the pressing component 6 includes a first pressing plate 61 and a second pressing plate 62. The first pressing plate 61 is vertically slidably disposed on the magnetizer body 1, and the second pressing plate 62 is vertically slidably disposed below the first pressing plate 61. The magnetizer body 1 is provided with a first driving component 7 for driving the first pressing plate 61 to move vertically downward so that the second pressing plate 62 contacts the magnetic ring blank 20. The first pressing plate 61 is provided with a second driving component 8 for driving the second pressing plate 62 to move vertically downward so that the magnetic ring blank 20 enters the magnetization cavity 11.

[0026] In this embodiment, the first driving component 7 includes two first cylinders, which are mounted on the magnetizer body 1. The piston rods of the first cylinders point vertically upward and are bolted to the first pressure plate 61. The second driving component 8 includes a second cylinder, which is mounted on the first pressure plate 61. The piston rod of the second cylinder points vertically downward and is bolted to the second pressure plate 62.

[0027] like Figure 5 As shown, after the magnetic ring blank 20 is placed on the movable frame 22, the first driving member 7 can drive the first pressure plate 61 to move vertically downward so that the second pressure plate 62 contacts the top of the magnetic ring blank 20. Then, the second driving member 8 drives the second pressure plate 62 to move and press the movable frame 22 and the magnetic ring blank 20 into the magnetization cavity 11.

[0028] During material handling, the second pressure plate 62 moves upward and moves out of the magnetization cavity 11 together with the movable frame 22 and the magnetic ring blank 20, and contacts the first pressure plate 61 to move upward so as to pick up and put down the magnetic ring blank 20.

[0029] This two-stage drive method not only avoids excessive impact on the magnetic ring blank 20 during the pressing process, but also prevents the spring from ejecting the magnetic ring blank 20 out of the movable frame 22 and causing damage when driving the movable frame 22 and the magnetic ring blank 20 upward during the material removal process.

[0030] To further enhance the protection of the magnetic ring blank 20, a flexible pad 9 is provided on the side of the second pressure plate 62 near the mounting bracket 2. The flexible pad 9 may be made of rubber.

[0031] To facilitate the rotation of the stud 3 by the staff, a block 10 for holding is welded to the top of the conical positioning block 4. The outer diameter of the block 10 is smaller than the minimum outer diameter of the conical positioning block 4.

[0032] In this embodiment, the outer wall of the block 10 is textured so that workers can hold and rotate it.

[0033] The implementation principle of the magnetizing device for anisotropic planar multipole magnetic rings in this application embodiment is as follows: Based on the inner diameter of the magnetic ring blank 20 to be magnetized, rotating the stud 3 drives the conical positioning block 4 to move vertically, adjusting the portion of the conical positioning block 4 exposed in the threaded hole. When the magnetic ring blank 20 is inserted onto the outside of the conical positioning block 4, the conical surface of the conical positioning block 4 contacts the inner edge of the bottom of the magnetic ring blank 20, achieving the positioning purpose. When switching to magnetize a magnetic ring blank 20 with a different inner diameter, only the portion of the conical positioning block 4 exposed in the threaded hole needs to be adjusted by rotating the stud 3 to adapt to the corresponding inner diameter magnetic ring blank 20. This improves the versatility of the magnetizing device.

[0034] Those skilled in the art will understand that although preferred embodiments of the present invention have been described, those skilled in the art, once they understand the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if these modifications and modifications of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and modifications.

Claims

1. A magnetizing device for anisotropic planar multipole magnetic rings, characterized in that: The device includes a magnetizer body (1), which has a magnetizing cavity (11). A mounting bracket (2) is provided inside the magnetizing cavity (11). A stud (3) is threadedly connected to the mounting bracket (2) at the axis of the magnetizing cavity (11). A threaded hole with a size that matches the stud (3) is provided on the mounting bracket (2). A conical positioning block (4) is provided on the stud (3) for passing through the threaded hole. The stud (3) rotates spirally so that the maximum outer diameter of the part of the conical positioning block (4) exposed in the threaded hole matches the inner diameter of the magnetic ring blank (20).

2. The magnetizing device for an anisotropic planar multipole magnetic ring according to claim 1, characterized in that: The mounting frame (2) includes a fixed frame (21) and a movable frame (22). The fixed frame (21) is set on the bottom wall of the magnetizing cavity (11). The movable frame (22) is movably connected to the fixed frame (21) along the depth direction of the magnetizing cavity (11). The fixed frame (21) is provided with an elastic element (5) for driving the movable frame (22) away from the fixed frame (21) and exposing it to the magnetizing cavity (11). The stud (3) is threadedly connected to the movable frame (22). The magnetizer body (1) is provided with a pressing element (6) for pressing down the magnetic ring blank (20) and overcoming the elastic force of the elastic element (5) so that the magnetic ring blank (20) enters the magnetizing cavity (11).

3. A magnetizing device for an anisotropic planar multipole magnetic ring according to claim 2, characterized in that: The pressing component (6) includes a first pressing plate (61) and a second pressing plate (62). The first pressing plate (61) is vertically slidably disposed on the magnetizer body (1), and the second pressing plate (62) is vertically slidably disposed below the first pressing plate (61). The magnetizer body (1) is provided with a first driving member (7) for driving the first pressing plate (61) to move vertically downward so that the second pressing plate (62) contacts the magnetic ring blank (20). The first pressing plate (61) is provided with a second driving member (8) for driving the second pressing plate (62) to move vertically downward so that the magnetic ring blank (20) enters the magnetization cavity (11).

4. The magnetizing device for an anisotropic planar multipole magnetic ring according to claim 3, characterized in that: The second pressure plate (62) has a flexible pad (9) on the side near the mounting bracket (2).

5. The magnetizing device for anisotropic planar multipole magnetic ring according to claim 2, characterized in that: The elastic element (5) is a spring, which is made of an antimagnetic material.

6. The magnetizing device for an anisotropic planar multipole magnetic ring according to claim 1, characterized in that: The top of the conical positioning block (4) is provided with a block (10) for holding, and the outer diameter of the block (10) is smaller than the minimum outer diameter of the conical positioning block (4).

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