Outer rotor permanent-magnet steel adhering device and an outer rotor permanent-magnet steel adhering method for outer rotor motor

Abstract

The invention relates to an outer rotor permanent-magnet steel adhering device, which comprises a base and a plurality of movable positioning clamps, wherein the base is provided with an internal space, and the movable positioning clamps are mounted on the base at intervals. The invention further relates to an outer rotor permanent-magnet steel adhering method, which includes: disposing an outer rotor to be adhered with permanent-magnet steel in the base, moving one movable positioning clamp from the outer side of the base to be positioned on the inner side of the base, corresponding the lateral sides of the movable positioning clamps to the inner wall of a back yoke; adhering permanent-magnet steel pieces to the inner wall of the back yoke on one side of the movable positioning clamps through adhesives according to the positioned movable positioning clamps; moving the movable positioning clamps on the other side of the adhered permanent-magnet steel pieces from the outer side of the base to be positioned in the base, and corresponding the lateral sides of the movable positioning clamps to the inner wall of the back yoke; and repeating the above steps to adhere until all permanent-magnet steel pieces are adhered. The outer rotor permanent-magnet steel adhering method is simple and convenient in adhering, short in time and low in cost, and the outer rotor permanent-magnet steel adhering device is flexible, controllable, high in interchangeability and long in service life.

Description

technical field [0001] The invention relates to the field of outer rotor motors, in particular to an outer rotor permanent magnet magnet sticking device, and also relates to a sticking method of the outer rotor permanent magnet magnet sticking device. Background technique [0002] The outer rotor motor includes an outer rotor and an inner stator. The inner stator is placed in the outer rotor. The outer rotor includes an outer rotor shell and a back yoke. The back yoke is located on the inner wall of the outer rotor shell. permanent magnet. In the prior art, how to achieve low paste cost, simple and convenient process, short paste cycle, and meet the paste precision requirements of the external rotor permanent magnet paste process has always been the pursuit of manufacturers in this field. There are two main methods for pasting permanent magnets of external rotor motors: one is to put the outer rotor to be pasted with permanent magnets into an injection mold for injection mo...

AI Technical Summary

Problems solved by technology

There are two main methods for pasting permanent magnets of external rotor motors: one is to put the outer rotor to be pasted with permanent magnets into an injection mold for injection molding to obtain an outer rotor with plastic-encapsulated permanent magnets. The operation process of the method is not only complicated, but also the paste cost is too expensive

The other is to integrally set the positioning boss on the back yoke as a positioning fixture for pasting the permanent magnetic steel, but this will greatly increase the material consumption of the back yoke and increase the manufacturing cost, and because the positioning on the back yoke The fixture cannot be flexibly controlled and moved. Therefore, when a certain positioning fixture on the back yoke is damaged, the entire back yoke will be scrapped. Errors such as coaxiality make it impossible to complete the process of pasting permanent magnets

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