Method for improving concentricity and finish of rotor shaft

Abstract

A method for improving the concentricity and the finish of a rotor shaft includes the following technological processes that first, the length of a hole lapping machine of a workpiece is adjusted according to the size of the workpiece; second, the workpiece is placed on the hole lapping machine in a double-top mode, extra-high-quality lithium base grease is smeared all over the portions at the two ends, of a center hole of the workpiece, and the workpiece is ground for one minute on the hole lapping machine; second, two tip portions of the hole lapping machine contain specially-made sand alloy, and due to the sand alloy, not only can the precision of the center hole of the workpiece not be reduced, but also the surfaces on the two sides of the center hole are smooth and free of burrs; fourth, the ground workpiece is fine ground. The concentricity of the rotor shaft machined with the method is improved a lot, the jerk value of the rotor shaft is almost zero, the working efficiency is greatly improved, the rejection rate is reduced to 1%. from 5%, and machined products are bright and smooth in appearance.

Description

technical field [0001] The invention relates to a processing method for auto parts, in particular to a method for improving the concentricity and smoothness of a rotor shaft. Background technique [0002] The concentricity of the original rotor shaft is very low, the finish is poor, and the scrap rate is high. The processing masters have low work efficiency during the processing process, and the precision is difficult to control. In addition, the burrs on the wheel head of the rotor shaft and the center hole on the top of the impeller are relatively large. , the appearance is very ugly. Contents of the invention [0003] The object of the present invention is to provide a method for improving the concentricity and smoothness of the rotor shaft in order to overcome the defects and deficiencies in the above-mentioned prior art. [0004] The technical solutions adopted are: [0005] A method for improving the concentricity and smoothness of a rotor shaft, characterized in t...

AI Technical Summary

Problems solved by technology

[0002] The concentricity of the original rotor shaft is very low, the finish is poor, and the scrap rate is high. The processing masters have low work efficiency during the processing process, and the precision is difficult to control. In addition, the burrs on the wheel head of the rotor shaft and the center hole on the top of the impeller are relatively large. , the appearance is very ugly