Anisotropic magnetic rotor automatic pole recognition and magnetizing clamp

Abstract

The application discloses an anisotropic magnetic rotor automatic magnetic pole recognizing and magnetizing clamp, which comprises a magnetic rotor, a mounting bracket, a driving assembly, a magnetic pole recognizing head, a magnetic pole magnetizing head and a moving assembly; the magnetic pole recognizing head and the magnetic pole magnetizing head are symmetrically arranged on the mounting bracket; the driving assembly is drivingly connected with the magnetic rotor and integrally arranged on the module assembly; the driving assembly can drive the magnetic rotor to be connected with or separated from the magnetic pole recognizing head and the magnetic pole magnetizing head; and the moving assembly can drive the magnetic rotor to move in the X direction and the Y direction relative to the magnetic pole recognizing head and the magnetic pole magnetizing head. According to the scheme, the orientation magnetic pole of the magnet can be accurately found in the magnetic pole recognizing head before magnetization, and the magnetization is about 30% after the fast magnetization, so that the magnetic pole recognizing and the magnetizing steps are separated, the magnetic pole confusion is avoided, and the reliability of the magnetizing structure is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of magnetic pole technology, specifically to an automatic magnetic pole identification and magnetization fixture for anisotropic magnetic bricks. Background Technology

[0002] The magnetic rotor consists of two parts: a magnet and a plastic core. The magnet is injection molded, where it is shaped within a magnetic field mold and undergoes anisotropic orientation, at which point it carries a 60% magnetic field. The plastic core is also injection molded, requiring the magnet to be embedded in a plastic mold for secondary injection molding. For ease of manufacturing, the magnet needs to be mixed with the magnetic field during embedding. After both parts are molded, the magnetic rotor is saturated with magnets along the oriented direction. If the magnets of a traditional isotropic permanent magnet are used directly for magnetization, it will cause magnetic pole confusion and loss of rotor function. This is because the direction of the magnetizing magnetic field cannot be guaranteed to be consistent with the direction of the magnetic pole arrangement inside the magnet during orientation molding, thus significantly reducing the reliability of the magnetization structure.

[0003] Therefore, improving the reliability of magnetization structures is a problem that needs to be solved in this field. Summary of the Invention

[0004] In view of the technical problem of low reliability of existing anisotropic magnetic rotor automatic pole recognition magnetization clamps, the purpose of this invention is to provide anisotropic magnetic rotor automatic pole recognition magnetization clamp, which can ensure the reliability of the magnetization structure and effectively overcome the problems existing in the prior art.

[0005] To achieve the above objectives, the present invention provides an anisotropic magnetic rotor automatic pole identification and magnetization fixture, comprising a magnetic rotor, a mounting bracket, a drive assembly, a pole identification head, a magnetization head, and a moving assembly; the pole identification head and the magnetization head are symmetrically arranged on the mounting bracket; the drive assembly drives and connects the magnetic rotor and is integrally disposed on the module assembly, and the drive assembly can drive the magnetic rotor to dock / disengage relative to the pole identification head and the magnetization head; the moving assembly can drive the magnetic rotor to move relative to the pole identification head and the magnetization head in the X and Y directions.

[0006] Furthermore, the magnetic pole head includes a magnetic steel sleeve and several tile-shaped sintered strong magnets; the several tile-shaped sintered strong magnets are assembled to form a constant magnetization field; the magnetic steel sleeve is disposed around the constant magnetization field formed by the tile-shaped sintered strong magnets.

[0007] Furthermore, the direction of the magnetization field of the magnetic pole head is the same as the direction of the magnetic pole arrangement inside the magnetic rotor.

[0008] Furthermore, the magnetizing pole head is composed of several pieces of yoke iron inlaid together; the yoke iron of the magnetizing pole head is wrapped with electromagnetic wires.

[0009] Furthermore, the magnetic field arrangement of the magnetized pole head is in the same direction as the magnetic field arrangement inside the magnetic rotor.

[0010] Furthermore, the drive assembly includes a first cylinder, a second cylinder, and a third cylinder; the first cylinder and the second cylinder correspond to the magnetic pole head and the magnetizing pole head, respectively, and are connected to the magnetic pole head and the magnetizing pole head, respectively, by means of a push rod, so that the product that has been magnetically identified and magnetized can be ejected by the cylinder; the third cylinder is disposed on the moving assembly and is connected to the magnetic rotor drive, so that the anisotropic magnetic rotor can be driven to enter or leave the magnetic pole head and the magnetizing pole head by the extension and retraction of the third cylinder.

[0011] Furthermore, the moving component includes an X module and a Y module, with the Y module symmetrically arranged at the bottom of the X module. The X module and the Y module can drive a third cylinder mounted on the moving component to move in the X and Y directions.

[0012] Furthermore, the anisotropic magnetic rotor automatic pole recognition and magnetization fixture is equipped with a PLC control system, which drives and connects to the anisotropic magnetic rotor automatic pole recognition and magnetization fixture.

[0013] The purpose of this solution is to provide an anisotropic magnetic rotor automatic pole identification and magnetization fixture, which can accurately locate the orientation pole of the magnet in the pole identification head before magnetization, and then quickly magnetize it after magnetizing it to about 30%. Separating the pole identification and magnetization steps can avoid pole confusion and greatly improve the reliability of the magnetization structure. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a schematic diagram of the overall structure of the automatic pole identification and magnetization fixture for the anisotropic magnetic rotor.

[0016] Figure 2 This is a schematic diagram of the pole-recognizing head in the automatic pole-recognizing and magnetizing fixture for this anisotropic magnetic rotor;

[0017] Figure 3 This is a schematic diagram of the magnetizing head in the automatic magnetizing fixture for anisotropic magnetic rotors.

[0018] The following are the component labels in the attached diagram:

[0019] 1. First cylinder 2. Cylinder fixing plate 3. Cylinder support rod 4. Magnetic pole head 5. Magnetic rotor 6. Bearing seat 7. Third cylinder 8. Support rod 9. X module 10. Y module 11. Second cylinder 12. Push rod 13. Pole head fixing plate 14. Magnetizing pole head 15. Base plate 41. Magnet sleeve 42. Tile-shaped sintered strong magnet 43. Yoke 44. Electromagnetic wire. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below with reference to specific illustrations.

[0021] To address the technical problem of low reliability in existing magnetization structures, this solution aims to provide an anisotropic magnetic rotor automatic pole identification and magnetization fixture. Before magnetization, it can accurately locate the orientation pole of the magnet in the pole identification head, magnetize it to about 30%, and then perform rapid magnetization. Separating the pole identification and magnetization steps can avoid pole confusion, greatly improve the reliability of the magnetization structure, and effectively overcome the problems existing in the prior art.

[0022] To achieve the above objectives, the present invention provides an anisotropic magnetic rotor automatic pole recognition and magnetization fixture, which includes a mounting bracket, a drive assembly, a moving assembly, an anisotropic magnetic rotor, a pole recognition head, and a magnetization head.

[0023] See Figure 1 The mounting bracket includes a support rod 8, a base plate 15, a cylinder fixing plate 2, a cylinder support rod 3, and an electrode fixing plate 13. The mounting bracket enables the installation of the drive assembly, the magnetic pole head 4, and the magnetizing pole head 14.

[0024] The base plate 15 is the supporting structure of the overall magnetizing fixture, and the support rods 8 are symmetrically arranged on the base plate 15, serving as the mounting body for the overall magnetizing fixture.

[0025] Furthermore, the cylinder fixing plate 2 is used to install the drive assembly. It is installed on the top of the support rod 8, and its two ends are connected to the pole head fixing plate 13 through the support rod via the cylinder support rod 3, and fixed on the pole head fixing plate 13.

[0026] The pole head fixing plate 13 is used to fix the magnetic pole head 4 and the magnetizing pole head 14. Its two ends are threadedly connected to the cylinder support rod 3 inside the support rod 8 and fixed on the support rod 8.

[0027] The magnetic pole identification head 4 and the magnetizing head 14 are used to identify the magnetic poles and magnetize the anisotropic magnetic rotor, respectively, and are fixed to the pole head fixing plate 13 by threaded connection.

[0028] See Figure 2 The magnetic pole head 4 includes a magnetic steel sleeve 21 and several tile-shaped sintered strong magnets 42.

[0029] In this scheme, the magnetic pole head is a constant magnetization field with 4 poles magnetized by splicing 4 tile-shaped sintered strong magnets 42, and the direction of the magnetization field is the same as the direction of the magnetic pole arrangement inside the anisotropic magnetic rotor.

[0030] A perforation is provided in the middle of the constant magnetization field formed by four tile-shaped sintered strong magnets 42, which can be used to set an anisotropic magnetic rotor 5; the magnetic steel sleeve 41 is set on the periphery of the constant magnetization field formed by the tile-shaped sintered strong magnets 42.

[0031] When the anisotropic magnetic rotor 5 enters the magnetic pole head 4, it will automatically rotate at a certain angle under the influence of the external magnetic pole head 4. After rotation, the direction of the magnetic field arrangement inside the magnetic rotor 5 overlaps with the direction of the magnetic field inside the magnetic pole head 4. At the same time, the magnetic field inside the magnetic pole head 4 can magnetize the magnetic rotor 5 to about 30%, that is, the magnetic recognition is completed.

[0032] The magnetic pole identification head 4 can pre-detect the magnetic pole arrangement direction of the anisotropic magnetic rotor 5 that has entered the interior, so as to prevent the magnetic pole confusion during the later magnetization. At the same time, the magnetic pole identification head 4 can also first magnetize the anisotropic magnetic rotor 5 by about 30%, which can ensure better magnetization effect in the later stage.

[0033] join Figure 3 The magnetizing pole head 14 is used to magnetize the anisotropic magnetic rotor. It is made of four yoke irons 435 spliced ​​together, with a through hole in the middle, which can be used to set the anisotropic magnetic rotor.

[0034] The magnetizing pole head yoke 43 is filled with 3T 4-pole electromagnetic wires 44. When energized, a high-strength magnetic field can be generated instantly in the magnetizing pole head 14. The magnetic field arrangement is the same as the magnetic field arrangement inside the anisotropic magnetic rotor 5.

[0035] When the anisotropic magnetic rotor 5 enters the magnetizing pole head 14 with a 30% magnetic field, the four poles of the magnetic rotor will automatically turn to the four pole shoes of the yoke 43. When they are in place, the magnetizing pole head 14 discharges. At this time, the magnetic field arrangement direction inside the magnetic rotor 5 overlaps with the electromagnetic field direction inside the magnetizing pole head 14. The magnetic rotor 5 is saturated magnetized in an instant, that is, the magnetization is completed.

[0036] The drive assembly includes a first cylinder 1, a second cylinder 11, and a third cylinder 7; wherein the first cylinder 1 and the second cylinder 11 are fixed to the cylinder fixing plate 2 by threads, the first cylinder 1 and the second cylinder 11 correspond to the magnetic pole head 4 and the magnetic pole head 14 respectively, and are respectively connected to the magnetic pole head 4 and the magnetic pole head 14 by a push rod 12, so that the product that has been magnetically identified and magnetically charged can be ejected by the cylinder.

[0037] The third cylinder 7 is mounted on the moving assembly. Its drive unit is connected to the anisotropic magnetic rotor 5 via the bearing seat 6. The extension and retraction of the third cylinder 7 can drive the anisotropic magnetic rotor 5 to enter or leave the magnetizing pole head 4 and the magnetizing pole head 14.

[0038] The anisotropic magnetic rotor 5 has an outer diameter of 4 poles that are magnetized. The magnetic body is arranged with a well-oriented quadrupole magnetic field and does not show magnetism to the outside. The magnetic field arrangement inside the anisotropic magnetic rotor is the same as the magnetic field distribution inside the magnetic pole head.

[0039] The moving component includes an X module 9 and a Y module 10. The Y module 10 is symmetrically arranged at the bottom of the X module 9. The X module 9 and the Y module 10 can drive the third cylinder 7, which is set on the moving component, to move in the X and Y directions.

[0040] The anisotropic magnetic brick automatic magnetic pole recognition and magnetization fixture constructed by the above scheme can be equipped with a PLC control system and an electromagnetic power supply. The third cylinder 7 is moved to the bottom of the magnetic pole recognition head 4 through the X module 9 and the Y module 10. Then, the magnetic rotor 5 is sent into the magnetic pole recognition head 4 through the third cylinder 7. After the magnetic pole recognition head 4 magnetizes and recognizes the magnetic rotor 5, the first cylinder 1 pushes the magnetic rotor 5 out and removes it from the magnetic pole recognition head 4.

[0041] Then, the X module 9 and Y module 10 move the third cylinder 7 to the bottom of the magnetizing pole head 14, and send the magnetic rotor 5 into the magnetizing pole head 14 through the third cylinder 7. After the magnetizing pole head 14 magnetizes the magnetic rotor 5, the first cylinder 7 pushes the magnetic rotor 5 out and separates it from the magnetizing pole head 14. The X module 9 and Y module 10 drive the product to return to the zero position.

[0042] The key to identifying magnetic poles lies in the duration of the magnetic field. The permanent magnetic field inside the pole head can be maintained indefinitely, allowing the magnetic rotor to turn in the correct direction for a sufficiently long time. However, the duration of the electromagnetic field inside the magnetizing pole head is only about 0.001 seconds. The magnetization process ends before the magnetic rotor can be fully identified, which can lead to the phenomenon that the magnetization does not follow the direction of the magnetic pole arrangement inside the magnetic rotor, i.e., the magnetic poles are disordered.

[0043] Therefore, this method can accurately locate the orientation pole of the magnet in the magnetic pole head before magnetization, and then quickly magnetize it after magnetizing it to about 30%. Separating the magnetic pole identification and magnetization steps can avoid magnetic pole confusion and greatly improve the reliability of the magnetization structure.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An automatic pole-identifying magnetizing fixture for anisotropic magnetic rotors, characterized in that, The system includes a magnetic rotor, a mounting bracket, a drive assembly, a magnetic pole recognition head, a magnetizing head, and a moving assembly. The magnetic pole recognition head and the magnetizing head are symmetrically arranged on the mounting bracket. The magnetic pole recognition head includes a magnetic steel sleeve and several tile-shaped sintered strong magnets. The several tile-shaped sintered strong magnets are interlocked to form a constant magnetization field. The magnetic steel sleeve is disposed around the constant magnetization field formed by the interlocked tile-shaped sintered strong magnets. The drive assembly drives the magnetic rotor and is integrally mounted on the module assembly. The drive assembly can drive the magnetic rotor to dock / disengage relative to the recognizing pole head and the magnetizing pole head. The moving component can drive the magnetic rotor to move in the X and Y directions relative to the magnetizing pole head and the magnetizing pole head.

2. The anisotropic magnetic rotor automatic pole identification and magnetization fixture according to claim 1, characterized in that, The direction of the magnetization field of the magnetic pole head is the same as the direction of the magnetic pole arrangement inside the magnetic rotor.

3. The anisotropic magnetic rotor automatic pole identification and magnetization fixture according to claim 1, characterized in that, The magnetizing pole head is composed of several pieces of yoke iron; the yoke iron of the magnetizing pole head is wrapped with electromagnetic wire.

4. The anisotropic magnetic rotor automatic pole identification and magnetization fixture according to claim 3, characterized in that, The magnetic field arrangement of the magnetized pole head is in the same direction as the magnetic field arrangement inside the magnetic rotor.

5. The anisotropic magnetic rotor automatic pole identification and magnetization fixture according to claim 1, characterized in that, The drive assembly includes a first cylinder, a second cylinder, and a third cylinder. The first and second cylinders correspond to the magnetic pole head and the magnetizing pole head, respectively, and are connected to the magnetic pole head and the magnetizing pole head by means of push rods, respectively, so that the products that have been magnetically identified and magnetized can be ejected by the cylinders. The third cylinder is mounted on the moving assembly and is connected to the magnetic rotor drive. The extension and retraction of the third cylinder can drive the anisotropic magnetic rotor to enter or leave the magnetic pole head and the magnetizing pole head.

6. The anisotropic magnetic rotor automatic pole identification and magnetization fixture according to claim 1, characterized in that, The moving component includes an X module and a Y module. The Y module is symmetrically arranged at the bottom of the X module. The X module and the Y module can drive a third cylinder arranged on the moving component to move in the X and Y directions.

7. The anisotropic magnetic rotor automatic pole identification and magnetization fixture according to claim 1, characterized in that, The anisotropic magnetic rotor automatic pole recognition and magnetization fixture is equipped with a PLC control system, which drives and connects to the anisotropic magnetic rotor automatic pole recognition and magnetization fixture.

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