A permanent magnet positioning tool for surface-mounted permanent magnet motor

Abstract

The invention discloses a permanent magnet positioning tool of a surface-mounted permanent magnet motor. The permanent magnet positioning tool comprises a skeleton, an axial positioning plate, a radial positioning ring and a tangential positioning ring, wherein a first positioning piece is arranged between the axial positioning plate and the skeleton; a first male end, a first female end and a first positioning hole are formed in the axial positioning plate; a second positioning hole, a second female end and a second male end matched with the first male end are formed in the radial positioning ring; a plurality of threaded holes are formed in the radial positioning ring; a plurality of notches and U-shaped positioning holes are formed in the tangential positioning ring; the outer circumference of the tangential positioning ring is matched with the second female end; the first female end is matched with the inner circumference of the tangential positioning ring and the outer circumference of the skeleton; and each of the positioning hole, the second positioning hole and the U-shaped positioning holes is internally provided with a second positioning piece. The permanent magnet positioning tool has the characteristics of accurate positioning, convenient operation, high mounting efficiency, capability of being repeatedly used and the like, and is particularly suitable for being used in production and manufacturing of permanent magnet motors with high-performance and batched surface-mounted magnets.

Description

technical field [0001] The invention belongs to the technical field of permanent magnet motor manufacturing, in particular to a permanent magnet positioning tool for surface-mounted permanent magnet motors, and is particularly suitable for surface-mounted permanent magnet motors produced in batches and on a large scale. Background technique [0002] With the improvement of the performance of permanent magnet materials and the decline of prices, permanent magnet motors have gradually entered the field of industrial and civilian motors. Compared with traditional electric excitation motors, permanent magnet motors have the advantages of compact structure, small size, light weight, simple and reliable structure, and high efficiency. The varieties and application fields of permanent magnet motors continue to expand. [0003] According to the different placement methods of permanent magnets, permanent magnet motors can be divided into surface mount type and built-in type. Compare...

AI Technical Summary

Problems solved by technology

Due to the relatively large magnetic field, the installation and fixation of surface-mounted magnets is more troublesome. First, the electromagnetic force is large, and second, the positioning accuracy of the magnets is not easy to guarantee.

[0004] At present, for the installation of surface-mounted permanent magnets, one is to use simple tooling for positioning and installation, but this simple tooling is likely to lead to inaccurate installation, and the cumulative error is relatively large, which may eventually affect the performance of the motor; the second is to paste the magnetic steel The positioning groove of the magnetic steel is processed on the outer surface of the motor. Although this method solves the problem of installation accuracy, the processing technology is complicated, which greatly increases the processing cost of the motor and reduces the efficiency.

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