A double-sided bipolar magnetizing device

By using adjustable fixing components and a C-shaped magnetic yoke design, the problems of low efficiency and limited applicability of traditional magnetization devices are solved, enabling flexible clamping and uniform magnetic field distribution for workpieces of different shapes, thus avoiding workpiece damage.

CN224287909UActive Publication Date: 2026-05-26HUIZHOU HONGCHANG PERMANENT MAGNETIC NEW MATERIAL TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUIZHOU HONGCHANG PERMANENT MAGNETIC NEW MATERIAL TECHNOLOGY CO LTD
Filing Date
2025-07-15
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Traditional magnetization devices are inefficient, have uneven magnetic field distribution, and their fixed structures cannot adapt to workpieces of different sizes and shapes, which can easily lead to damage to the workpiece surface.

Method used

It adopts an adjustable fixing component, including a slide bar, clamping plate, limit bar and spring structure, combined with C-shaped magnetic yoke and cooling pipe design, to achieve flexible clamping and uniform magnetic field distribution for workpieces of different shapes.

Benefits of technology

It improves the applicability and flexibility of the magnetization device, avoids scratches or damage to the workpiece surface, and ensures uniform magnetic field distribution and firm fixation of the workpiece.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to a double-sided bipolar magnetizing device, belonging to the field of magnetizing device technology. It includes a mounting box containing an upper coil and a lower coil wound in opposite directions. A C-shaped magnetic yoke is also located inside the mounting box. The upper and lower coils are respectively connected to an upper magnetic pole head and a lower magnetic pole head, which are connected by the C-shaped magnetic yoke to form a closed magnetic circuit. A mounting cavity is located on the inner wall of the mounting box, and a cooling pipe is located inside the mounting box. A placement frame is snapped into the mounting cavity, and the placement frame is equipped with an adjustable fixing component. This utility model, through the adjustable fixing component, allows for flexible adjustment of the clamping plate spacing according to actual needs, adapting to various workpieces of different sizes and shapes, thus improving the applicability of this utility model. A limiting rod, a second spring, and a rubber pad effectively prevent accidental slippage and loosening of the workpiece, avoiding scratches or other damage to the workpiece surface.
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Description

Technical Field

[0001] This utility model relates to the field of magnetization device technology, and in particular to a double-sided bipolar magnetization device. Background Technology

[0002] In the complex environment of modern industrial production, magnetization technology, as a key process, has been widely used in many important fields such as motor manufacturing, sensor research and development, and magnetic separation equipment production. With the continuous progress of technology and the deepening of application in these fields, more stringent and diversified requirements have been put forward for the performance and applicability of magnetization devices. Traditional magnetization devices mostly adopt the design of single-sided magnetization or unipolar magnetization. This design often exhibits significant problems such as low efficiency and uneven magnetic field distribution during the magnetization process, making it difficult to effectively meet the high standard requirements of double-sided bipolar magnetization in modern industrial production.

[0003] In addition, existing magnetization devices have significant shortcomings in their workpiece fixing methods. Typically, these devices use a fixed-size clamping structure, which lacks flexibility and cannot be effectively adjusted and adapted to workpieces of different sizes. In particular, for irregularly shaped workpieces, this fixed-size clamping structure has poor adaptability, which not only greatly limits the application range of the magnetization device, but may also cause scratches or other forms of damage to the workpiece surface due to improper clamping force or unreasonable clamping position during rigid clamping, thereby affecting the quality and performance of the final product. Utility Model Content

[0004] To overcome the technical defects of the existing technology, this utility model provides a double-sided bipolar magnetizing device, which can clamp workpieces of different shapes and avoid damage to the surface of the workpiece during clamping.

[0005] The technical solution adopted by this utility model is as follows: it includes a mounting box, inside which are provided an upper coil and a lower coil, the winding directions of the upper coil and the lower coil are opposite, and inside the mounting box is provided a C-shaped magnetic yoke, the upper coil and the lower coil are respectively connected to an upper magnetic pole head and a lower magnetic pole head, the upper magnetic pole head and the lower magnetic pole head are connected by the C-shaped magnetic yoke to form a closed magnetic circuit, the inner wall of the mounting box is provided with a mounting cavity, the mounting cavity is provided with a cooling pipe, and a placement frame is snapped into the inside of the mounting box, the placement frame is provided with an adjustable fixing component.

[0006] Preferably, in order to achieve automatic reset and rapid adjustment of the clamping plate, the adjustable fixing component includes a slide rod, which is fixedly installed inside the placement frame. A set of clamping plates is inserted between the slide rods, and a first spring is sleeved on the slide rod. The two ends of the first spring are respectively connected to the placement frame and the clamping plate.

[0007] Preferably, in order to ensure that the clamping plate remains stable after being adjusted to a suitable position, the slide rod is provided with positioning holes arranged in an array, and the clamping plate is threaded with fixing bolts, which match the positioning holes.

[0008] Preferably, in order to fix workpieces of different shapes, a limiting rod is inserted into the clamping plate, a second spring is sleeved on the limiting rod, the two ends of the second spring are fixedly connected to the clamping plate and the limiting rod respectively, and a rubber pad is provided at the other end of the limiting rod.

[0009] Preferably, in order to add coolant, the cooling pipe adopts a coil structure, with its inlet and outlet extending to the outside of the mounting box.

[0010] Preferably, in order to disassemble and install the placement frame, the mounting box is provided with a snap-fit ​​groove inside, and the placement frame and the mounting box are snapped together through the snap-fit ​​groove.

[0011] Preferably, in order to facilitate the operation of the device by the operator and to enable the device to move flexibly, the mounting box is rotatably installed with a door, and the lower surface of the mounting box is provided with casters.

[0012] Preferably, in order to ensure a uniform magnetic field distribution during the magnetization process, the working surfaces of the upper magnetic pole head and the lower magnetic pole head are arranged parallel to each other and symmetrically, and the opening side of the C-shaped magnetic yoke faces the box door.

[0013] The beneficial effects of this utility model are:

[0014] The adjustable fixing components allow for adjustment of the clamping plate spacing to accommodate workpieces of various sizes and shapes, thus enhancing the applicability and flexibility of this invention. The limiting rod, second spring, and rubber pad effectively prevent accidental slippage and loosening of the workpiece, avoiding scratches or damage to the workpiece surface. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the present invention from the left side view.

[0016] Figure 2 This is a structural schematic diagram of the present invention from the right side view.

[0017] Figure 3 This is a cross-sectional view of the present invention.

[0018] Figure 4 This is a partial structural schematic diagram of the present invention.

[0019] Figure 5This is a schematic diagram of the adjustable fixing component of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Mounting box; 2. Upper coil; 3. Lower coil; 4. C-shaped magnetic yoke; 5. Upper magnetic pole head; 6. Lower magnetic pole head; 7. Cooling pipe; 8. Placement frame; 9. Adjustable fixing assembly; 901. Slide rod; 902. Clamping plate; 903. First spring; 904. Positioning hole; 905. Fixing bolt; 906. Limiting rod; 907. Second spring; 908. Rubber pad; 10. Snap-fit ​​groove; 11. Box door; 12. Caster wheel. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] like Figures 1-5 As shown, this embodiment provides a double-sided bipolar magnetizing device, including a mounting box 1. Inside the mounting box 1 are an upper coil 2 and a lower coil 3, with opposite winding directions. Inside the mounting box 1 is a C-shaped magnetic yoke 4. The upper coil 2 and lower coil 3 are respectively connected to an upper magnetic pole head 5 and a lower magnetic pole head 6. The upper magnetic pole head 5 and the lower magnetic pole head 6 are connected via the C-shaped magnetic yoke 4, forming a closed magnetic circuit. When an external power source is connected, the upper coil 2 and lower coil 3, due to their opposite winding directions, generate magnetic fields in opposite directions after being energized. The conduction of the magnetic yoke makes the upper magnetic pole head 5 and the lower magnetic pole head 6 form a stable closed magnetic circuit. After the magnetization process is completed, the external power supply is cut off. The inner wall of the mounting box 1 is provided with a mounting cavity, and the mounting cavity is provided with a cooling pipe 7. The mounting box 1 is fitted with a placement frame 8, and the placement frame 8 is provided with an adjustable fixing component 9. The adjustable fixing component 9 can adapt to workpieces of various sizes and shapes, thus improving the applicability and flexibility of this utility model.

[0023] As a technical optimization solution of this utility model, specifically as follows: Figure 1As shown, the adjustable fixing assembly 9 includes a slide rod 901, which is fixedly installed inside the placement frame 8. A set of clamping plates 902 are inserted between the slide rods 901. A first spring 903 is sleeved on the slide rod 901, and both ends of the first spring 903 are connected to the placement frame 8 and the clamping plates 902, respectively. The slide rod 901 is provided with positioning holes 904 arranged in an array. A fixing bolt 905 is threaded onto the clamping plate 902, and the fixing bolt 905 matches the positioning holes 904. A limit rod 906 is inserted into the clamping plate 902, and a second spring 907 is sleeved on the limit rod 906. Both ends of the second spring 907 are fixedly connected to the clamping plate 902 and the limit rod 906, respectively. A rubber pad 908 is provided at the other end of the limit rod 906. The fixing bolts 905 on the clamping plate 902 are used to push the clamping plate 902 to slide freely along the slide bar 901. The workpiece is gently placed in the center of the placement frame 8. The positions of the clamping plates 902 on both sides are manually adjusted to gradually move closer to the workpiece. When they are close to the appropriate clamping position, the fixing bolts 905 are tightened so that they are tightly engaged with the corresponding positioning holes 904 on the slide bar 901, thus achieving the initial fixation of the clamping plate 902. For workpieces with irregular shapes, the limiting rod 906, under the elastic action of the second spring 907, drives the rubber pad 908 to adaptively conform to the surface of the workpiece and apply uniform pressure according to the contour of the workpiece. This ensures that the workpiece is firmly fixed and avoids scratches or damage to the surface due to rigid extrusion.

[0024] As a technical optimization solution of this utility model, specifically as follows: Figure 1 As shown, the cooling pipe 7 adopts a coil structure, with its inlet and outlet extending to the outside of the mounting box 1. The mounting box 1 is provided with a snap-fit ​​groove 10. The placement frame 8 is snapped into the mounting box 1 through the snap-fit ​​groove 10, which facilitates the disassembly and installation of the placement frame 8. The mounting box 1 is rotatably mounted with a box door 11. The lower surface of the mounting box 1 is provided with casters 12. The working surfaces of the upper magnetic pole head 5 and the lower magnetic pole head 6 are parallel and symmetrically arranged. The opening side of the C-shaped magnetic yoke 4 faces the box door 11 to ensure that the magnetic field distribution is uniform during the magnetization process.

[0025] In use, loosen the fixing bolts 905 on the clamping plate 902. The first spring 903, released from its tension, generates an elastic restoring force, pushing the clamping plate 902 to slide freely along the slide rod 901. Gently place the workpiece in the center of the placement frame 8. Manually adjust the positions of the clamping plates 902 on both sides, gradually bringing them closer to the workpiece. When they approach a suitable clamping position, tighten the fixing bolts 905, ensuring they engage tightly with the corresponding positioning holes 904 on the slide rod 901. This achieves initial fixation of the clamping plate 902. For irregularly shaped workpieces, this provides a limiting effect. Under the elastic action of the second spring 907, rod 906 drives rubber pad 908 to adaptively conform to the workpiece surface, applying uniform pressure according to the workpiece contour. This ensures the workpiece is firmly fixed while avoiding scratches or damage to the surface caused by rigid compression. After the workpiece is fixed, the pipes of the external coolant circulation equipment are quickly connected to the inlet and outlet of the cooling pipe 7, and the sealing is checked to prevent coolant leakage. The external power supply is then turned on. At this time, the upper coil 2 and the lower coil 3, due to their opposite winding directions, generate magnetic fields in opposite directions after being energized. Through the conduction of the C-shaped magnetic yoke, the upper magnetic pole head 5 and the lower magnetic pole head 6 form a stable closed magnetic circuit. After the magnetization process is completed, the external power supply is turned off, and the equipment magnetic field is allowed to completely dissipate and the temperature drops to a safe range. The box door 11 is then opened again, the fixing bolt 905 is loosened, and the clamping plate 902 is automatically opened using the elastic force of the first spring 903. The magnetized workpiece is carefully removed, avoiding collisions that could weaken the magnetism or damage the workpiece.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this invention. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications may be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. A double-sided bipolar magnetizing device, comprising a mounting box (1), characterized in that: The mounting box (1) is equipped with an upper coil (2) and a lower coil (3) inside. The upper coil (2) and the lower coil (3) are wound in opposite directions. The mounting box (1) is equipped with a C-shaped magnetic yoke (4). The upper coil (2) and the lower coil (3) are respectively connected to an upper magnetic pole head (5) and a lower magnetic pole head (6). The upper magnetic pole head (5) and the lower magnetic pole head (6) are connected through the C-shaped magnetic yoke (4) to form a closed magnetic circuit. The inner wall of the mounting box (1) is equipped with a mounting cavity. The mounting cavity is equipped with a cooling pipe (7). The mounting box (1) is fitted with a placement frame (8). The placement frame (8) is equipped with an adjustable fixing component (9).

2. The double-sided bipolar magnetization device according to claim 1, characterized in that: The adjustable fixing component (9) includes a slide rod (901), which is fixedly installed inside the placement frame (8). A set of clamping plates (902) is inserted between the slide rods (901). A first spring (903) is sleeved on the slide rod (901), and the two ends of the first spring (903) are respectively connected to the placement frame (8) and the clamping plate (902).

3. The double-sided bipolar magnetizing device according to claim 2, characterized in that: The slide bar (901) is provided with positioning holes (904) arranged in an array, and the clamping plate (902) is threaded with fixing bolts (905), which match the positioning holes (904).

4. The double-sided bipolar magnetization device according to claim 3, characterized in that: A limiting rod (906) is inserted into the clamping plate (902), and a second spring (907) is sleeved on the limiting rod (906). The two ends of the second spring (907) are fixedly connected to the clamping plate (902) and the limiting rod (906) respectively. A rubber pad (908) is provided at the other end of the limiting rod (906).

5. The double-sided bipolar magnetizing device according to claim 1, characterized in that: The cooling pipe (7) adopts a coil structure, and its inlet and outlet extend to the outside of the mounting box (1).

6. The double-sided bipolar magnetizing device according to claim 1, characterized in that: The mounting box (1) is provided with a snap-fit ​​groove (10) inside, and the placement frame (8) is snapped into the mounting box (1) through the snap-fit ​​groove (10).

7. The double-sided bipolar magnetizing device according to claim 1, characterized in that: The mounting box (1) is rotatably mounted with a door (11), and the lower surface of the mounting box (1) is provided with casters (12).

8. The double-sided bipolar magnetizing device according to claim 7, characterized in that: The working surfaces of the upper magnetic pole head (5) and the lower magnetic pole head (6) are parallel and symmetrically arranged, and the opening side of the C-shaped magnetic yoke (4) faces the box door (11).