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The processing method of the multi-pole magnetic ring used in the motor

A multi-pole magnetic ring, processing method technology, applied in the direction of inductor/transformer/magnet manufacturing, circuits, electrical components, etc., can solve the problems of inability to apply, poor consistency of multi-pole magnetic rings, etc., achieve good orientation consistency, avoid magnetic powder uneven effect

Active Publication Date: 2017-05-10
安徽恒磁磁电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And because the bending degree of the dividing line between each product is different, the consistency of the prepared multi-pole magnetic ring is poor, and it cannot be applied to equipment requiring high precision

Method used

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  • The processing method of the multi-pole magnetic ring used in the motor
  • The processing method of the multi-pole magnetic ring used in the motor
  • The processing method of the multi-pole magnetic ring used in the motor

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] As shown in the figure, the present invention provides a processing method for a multi-pole magnetic ring on a motor, which includes

[0027] Step 1, pour the magnetic powder into the concave mold 1.1 on the fixed template 1;

[0028] Step 2, drive the punch 3.1 on the movable template 3 to cooperate with the die 1.1 through the press 2, and compact the magnetic powder;

[0029] Step 3, the fixed template 1 is provided with a plurality of orientation electromagnet assemblies 4 along the circumference of the center point of the die 1.1. The number of orientation electromagnet assemblies 4 is the same as the number of magnetic poles required by the product 6. When the press 2 drives the punch 3.1 to approach When the concave mold 1.1 is energized, the orientation electromagnet assembly 4 is energized, and the magnetic powder in each corre...

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Abstract

The invention discloses a processing method of a multi-pole magnetic ring applicable onto a motor. The processing method comprises the following steps of: 1, pouring magnetic powder into a concave die (1.1) on a fixed template (1); 2, pressing the magnetic powder; and 3, carrying out orientation on the magnetic powder in respective corresponding regions, wherein the processing method is characterized in that the step 3 also comprises the following step of: 3.1, in which a plurality of partition plates (5) are arranged in the concave die (1.1), the number of the partition plates (5) is the same as the number of orientational electromagnet assemblies (4), a magnetic boundary line (6.1) formed after arbitrary adjacent orientational electromagnet assemblies (4) are energized is overlapped with the corresponding partition plate (5), and all partition plates (5) are synchronously drawn away by an external driving mechanism (7) after the orientational electromagnet assemblies (4) are energized. The invention provides the processing method of the multi-pole magnetic ring applicable onto the motor. By the processing method, the magnetic boundary lines of the multi-pole magnetic ring can be high consistency in positions and shapes.

Description

technical field [0001] The invention relates to the technical field of magnetic material processing, in particular to a processing method for a multi-pole magnetic ring on a motor. Background technique [0002] A multi-pole magnetic ring is a common name for an annular rotor with two or more poles. Multi-pole magnetic rings made of anisotropic permanent magnets are widely used in various servo motors. The basic process of the multi-pole magnetic ring in the prior art is to pour the pre-treated magnetic powder into the mold cavity, and then extrude it through a press. At the same time, a pre-magnetic field is provided during the pressing process to make the magnetic powder The orientation of the magnetic force lines is consistent, and finally undergoes sintering molding, subsequent machining and surface protection treatment. However, in the existing multi-pole magnetic ring, the magnetic boundary between adjacent two poles is completely oriented by the pre-magnetic field to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F41/02H02K15/03
Inventor 李敏之莫建民吴文国
Owner 安徽恒磁磁电有限公司
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