CN219370722U

CN219370722U - Sintered NdFeB magnet processing magnetizing device

Info

Publication number: CN219370722U
Application number: CN202320471523.9U
Authority: CN
Inventors: 王森; 郭克敏; 李姝阅; 郭展豪
Original assignee: Qingdao Baicitong New Material Technology Co ltd
Current assignee: Qingdao Baicitong New Material Technology Co ltd
Priority date: 2023-03-14
Filing date: 2023-03-14
Publication date: 2023-07-18
Anticipated expiration: 2033-03-14

Abstract

The utility model discloses a sintered neodymium-iron-boron magnet processing magnetizing device which comprises a first pure iron core and a second pure iron core, wherein a copper wire is arranged between the first pure iron core and the second pure iron core, a fixing plate is arranged between the first pure iron core and the second pure iron core, a fixing hole is formed in the fixing plate, a fixing mechanism is arranged in the fixing hole, the fixing mechanism comprises an arc-shaped plate, a convex block, a first spring and a second spring, the arc-shaped plate is provided with a plurality of annular equidistant plates, the two arc-shaped plates are connected through the first spring, the convex block is arranged on one side of the arc-shaped plate, an annular groove is formed in the fixing hole, two ends of the second spring are fixedly connected with the inner wall of the annular groove and the other side of the arc-shaped plate respectively, and a placing groove is formed in the arc-shaped plate. Through setting up fixed establishment, conveniently fix the sintered neodymium iron boron magnetism body of equidimension, effectively improve the effect of magnetizing of sintered neodymium iron boron magnetism body, make the performance of magnetizing of sintered neodymium iron boron magnetism body obtain improving.

Description

Sintered NdFeB magnet processing magnetizing device

Technical Field

The utility model relates to the technical field of sintered NdFeB magnet processing equipment, in particular to a sintered NdFeB magnet processing magnetizing device.

Background

The sintered neodymium-iron-boron magnet comprises residual magnetism (Br) of a permanent magnet material, magnetic polarization intensity coercive force (intrinsic coercive force) (Hcj) magnetic induction intensity coercive force (Hcb), and maximum magnetic energy product ((BH) max). The neodymium iron boron permanent magnet material is a permanent magnet material based on an intermetallic compound ND2FE 14B. The main components of the megaleak are rare earth (ND), iron (FE) and boron (B). The rare earth ND can be replaced by sister dysprosium (Dy), praseodymium (Pr) and other rare earth metals for obtaining different performances, and the iron can be replaced by cobalt (Co), aluminum (Al) and other metals, so that the boron cool pad has smaller permanent content, but plays an important role in binding the intermetallic compound with the tetragonal crystal structure, so that the compound has high saturation magnetization, high uniaxial anisotropy and high Curie temperature. The sintered NdFeB permanent magnetic material adopts a powder metallurgy process, the smelted alloy is made into powder and pressed into a pressing blank in a magnetic field, the pressing blank is sintered in inert gas or vacuum to achieve densification, and in order to improve the coercive force of the magnet, ageing heat treatment is generally required. The sintered NdFeB permanent magnet material has excellent magnetic performance, and is widely applied to the fields of electronics, electric machinery, medical equipment, toys, packaging, hardware machinery, aerospace, and the like, and more common permanent magnet motors, speakers, magnetic separators, computer disk drives, magnetic resonance imaging equipment meters, and the like.

In the processing process of the sintered NdFeB magnet, the sintered NdFeB magnet needs to be magnetized by a magnetizing device, and the magnetizing method adopts the principle that a high current is utilized to carry out instant discharge so as to generate a pulse strong magnetic field, thereby magnetizing the permanent magnet. In view of the continuity of the magnetization, the time of the pulse front in the magnetization circuit is shortened as much as possible.

The existing fixture on the magnetizing device is of a fixed structure, has unadjustability, and has no way to correct the magnetizing effect, so that the magnetizing effect of the sintered NdFeB magnet is poor, and the magnetizing performance of the magnet is reduced. For the related art problems, no solution has been proposed yet.

Disclosure of Invention

Aiming at the problems in the related art, the utility model provides a sintered neodymium-iron-boron magnet processing and magnetizing device to overcome the technical problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a sintered neodymium iron boron magnetism body processing magnetizing device, includes pure iron core one and pure iron core two, pure iron core one and pure iron core two are the upper and lower symmetry setting, be provided with the copper line between pure iron core one and the pure iron core two, the both ends winding of copper line sets up respectively on pure iron core one and pure iron core two, be provided with the fixed plate between pure iron core one and the pure iron core two, the fixed orifices has been seted up on the fixed plate, the inside of fixed orifices is provided with fixed establishment, fixed establishment includes arc, lug, spring one and spring two, the arc is provided with a plurality of, and is annular equidistance setting, two connect through spring one between the arc, the one side at the arc is installed to the lug, the ring channel has been seted up to the inside of fixed orifices, the both ends of spring two are respectively with the inner wall of ring channel and the opposite side fixed connection of arc.

Preferably, the arc plate, the first spring, the protruding block and the second spring are all provided with a plurality of equidistant.

Preferably, the width of the fixing plate is the same as that of the pure iron core I.

Preferably, the fixing plate is made of a non-magnetic conductive material.

Preferably, the lug is circular structure setting, the standing groove has been seted up on the arc, the standing groove is semi-circular structure setting, the one end of lug extends to the inside of standing groove, the lug adopts rubber materials to make.

Preferably, the fixing mechanism is provided with three groups and is equidistantly arranged.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model relates to a sintered NdFeB magnet processing magnetizing device, which is characterized in that a fixing mechanism is arranged, under the action of a first spring and a second spring, a lug on an arc plate can be attached to the outer wall of a magnetized sintered NdFeB magnet, so that the sintered NdFeB magnet with different sizes can be conveniently fixed, the magnetizing effect of the sintered NdFeB magnet is effectively improved, and the magnetizing performance of the sintered NdFeB magnet is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the structure of the present utility model in front section;

fig. 3 is a schematic top view of the fixing plate of the present utility model.

In the reference numerals: 1. pure iron core I; 2. a pure iron core II; 3. copper wire; 4. a fixing plate; 5. an arc-shaped plate; 6. a bump; 7. a first spring; 8. and a second spring.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Examples

Referring to fig. 1-3, the utility model provides a technical scheme of a sintered neodymium-iron-boron magnet processing magnetizing device: the utility model provides a sintered neodymium iron boron magnetism body processing magnetizing device, including pure iron core 1 and pure iron core 2, represent pure iron core 1 and pure iron core 2 respectively and be the upper and lower symmetry setting, be provided with copper line 3 between pure iron core 1 and the pure iron core 2, specific, power negative pole and positive pole are connected respectively at copper line 3's both ends, winding sets up on pure iron core 1 and pure iron core 2 respectively at copper line 3's both ends, be provided with fixed plate 4 between pure iron core 1 and the pure iron core 2, specifically, can place the sintered neodymium iron boron magnetism body that needs to magnetize on fixed plate 4, be charged according to the pulse and supply discharge, for waiting to magnetize sintered neodymium iron boron magnetism body, can realize multipolar magnetization, set up the fixed orifices on the fixed plate 4, specific, the fixed orifices is cylindrical structure setting, the inside of fixed orifices is provided with fixed establishment, fixed establishment includes arc 5, lug 6, spring 7 and spring 8, arc 5 is provided with a plurality of, and be the annular setting, connect through spring 7 between two arc 5, the fixed plate is connected with one side of spring 5 and the fixed plate is connected with the fixed plate of annular groove 5, the inside effect that the fixed plate that the annular groove is required to be filled with two side of annular groove 5 is located between the annular groove 5, sintered neodymium iron boron magnetism body's inner wall 5 and the fixed plate's of the fixed plate is sintered neodymium iron boron magnetism body, the other side is sintered annular groove 5 is not sintered with the fixed plate 5.

Referring to fig. 3, further, the arc plate 5, the first spring 7, the bump 6 and the second spring 8 are all provided with a plurality of equidistant protrusions.

In this embodiment, the arcuate plates 5 are provided in four numbers, and the springs 7 are provided in four numbers and equidistant.

Referring to fig. 1, further, the width of the fixing plate 4 is the same as the width of the pure iron core 1.

Further, the fixing plate 4 is made of a non-magnetic conductive material.

Referring to fig. 3, further, the bump 6 is arranged in a circular structure, the arc plate 5 is provided with a placement groove, the placement groove is arranged in a semicircular structure, one end of the bump 6 extends to the inside of the placement groove, and the bump 6 is made of rubber material.

In this embodiment, the bump 6 effectively increases the friction with the sintered neodymium-iron-boron magnet to be magnetized, and improves the stability of fixation.

Referring to fig. 1-3, further, the fixing mechanism is provided with three groups and is equidistantly arranged.

In this embodiment, three sets of fixing mechanisms are equidistantly arranged.

The working principle of the utility model is as follows: the sintered NdFeB magnet to be magnetized is placed between the arc plates 5, under the action of the first spring 7 and the second spring 8, the protruding blocks 6 on the arc plates 5 are attached to the outer walls of the magnetized sintered NdFeB magnet, the sintered NdFeB magnet with different sizes is conveniently fixed, the pure iron core I1 and the pure iron core II 2 are combined, then the sintered NdFeB magnet to be magnetized is discharged according to a pulse magnetizing power supply, and multipolar magnetizing can be achieved.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sintered neodymium iron boron magnetism body processing magnetizing device, its characterized in that, including pure iron core one (1) and pure iron core two (2), pure iron core one (1) and pure iron core two (2) are the upper and lower symmetry setting, be provided with copper line (3) between pure iron core one (1) and the pure iron core two (2), twine respectively at the both ends of copper line (3) and set up on pure iron core one (1) and pure iron core two (2), be provided with fixed plate (4) between pure iron core one (1) and pure iron core two (2), the fixed orifices has been seted up on fixed plate (4), the inside of fixed orifices is provided with fixed establishment, fixed establishment includes arc (5), lug (6), spring one (7) and spring two (8), arc (5) are provided with a plurality of, and are annular equidistance setting, two connect through spring one (7) between arc (5), lug (6) are installed in one side of arc (5), the inside of fixed plate (4) has seted up fixed orifices and two opposite sides of annular groove (8) are connected with the fixed plate (8) respectively.

2. The sintered neodymium-iron-boron magnet processing and magnetizing device according to claim 1, wherein the arc plate (5), the first spring (7), the protruding block (6) and the second spring (8) are all provided with a plurality of equidistant layers.

3. A sintered neodymium-iron-boron magnet processing and magnetizing device according to claim 1, characterized in that the width of the fixing plate (4) is the same as the width of the pure iron core one (1).

4. A sintered neodymium-iron-boron magnet processing and magnetizing device according to claim 1, characterized in that the fixing plate (4) is made of a non-magnetic conductive material.

5. The sintered neodymium-iron-boron magnet processing and magnetizing device according to claim 1, wherein the protruding block (6) is arranged in a circular structure, a placing groove is formed in the arc-shaped plate (5), the placing groove is arranged in a semicircular structure, one end of the protruding block (6) extends to the inside of the placing groove, and the protruding block (6) is made of rubber materials.

6. The sintered neodymium-iron-boron magnet processing and magnetizing device according to claim 1, wherein the fixing mechanism is provided with three groups and is equidistantly arranged.