Alternating current permanent magnet synchronous spindle motor for threading machine

Abstract

The invention discloses an alternating current permanent magnet synchronous spindle motor for a threading machine. The motor comprises a shell, a rotating shaft, a permanent magnet rotor assembly, a stator assembly, an encoder, a front end cover and a rear end cover; the front end cover is mounted at a front end of the shell, and the rear end cover is mounted on a rear end of the shell; the rotating shaft is arranged in the shell, and respectively connected with the front end cover and the rear end cover through a first bearing and a second bearing; the stator assembly is arranged at the inner wall of the shell and located at the rear end of the shell; the permanent magnet rotor assembly is mounted on the rotating shaft; the encoder is mounted at the rear end of the rotating shaft and the encoder is connected with an external driver; and the rotating shaft is in a hollow structure, and the cross section of the hollow structure is a variable cross section. The motor provided by the invention can improve the working efficiency of the threading machine, has a simple structure and convenience, and is convenient for spread and use.

Description

technical field [0001] The invention relates to a spindle motor, in particular to an AC permanent magnet synchronous spindle motor used for a tapping machine. Background technique [0002] Tapping machine is a machine that processes internal threads, screws or tooth buttons on the inner surface of various parts with different specifications of through holes or blind holes, such as machine shells, equipment end faces, nuts, flanges, etc. Mechanical processing equipment. Tapping machine can be divided into manual tapping machine, pneumatic tapping machine, electric tapping machine and hydraulic tapping machine; according to the number of tapping machine spindles, it can be divided into single-axis tapping machine, two-axis tapping machine four Axis tapping machine, six-axis tapping machine, multi-axis tapping machine, etc. [0003] At present, for the electric tapping machine, its structure and speed regulating mechanism are relatively complicated, the rotational inertia of ...

AI Technical Summary

Problems solved by technology

[0003] At present, for the electric tapping machine, its structure and speed regulating mechanism are relatively complicated, the rotational inertia of the rotating shaft is too large, and the rotation of the rotating shaft is correspondingly slow, which is easy to cause work failure and affect the working efficiency of the tapping machine. Work brings great inconvenience

Secondly, the belt drive is mostly used between the motor and the main shaft of the general tapping machine. When the load is too large in the tapping process, the belt is easy to slip, which will cause a large tapping error.

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