Method for grinding ball track of large thin-wall bearing inner ring

Abstract

The invention discloses a method for grinding a ball track of a large thin-wall bearing inner ring. One end face of the bearing inner ring is attracted to a workpiece axial magnetic pole of an electromagnetic coreless clamp, a grinding wheel used for grinding is attached to a ball track face of the bearing inner ring, a first support and a second support are further arranged on the workpiece axial magnetic pole and are used for supporting the bearing inner ring, the first support supports the inner wall of the bearing inner ring to form a first supporting point, and the second support supports the outer wall of the bearing inner ring and is located below the ball track to form a second supporting point. Through the improvement on the distribution positions of the supporting points in the current grinding process, and the grinding operating difficulty is lowered greatly; due to the fact that the first supporting point and the second supporting point are arranged on the inner wall and the outer wall of the bearing inner ring respectively, reacting force can be performed on the extruding force generated by the feeding of the grinding wheel on the bearing inner ring in the grinding process, the bearing inner ring is not prone to deforming even when the feeding speed of the grinding wheel is high, and burning damage is also avoided.

Description

technical field [0001] The invention belongs to the technical field of bearing processing, and in particular relates to a grinding processing method for the raceway of the inner ring of a large thin-walled bearing. Background technique [0002] In the processing of bearing rings, the inner ring of the bearing is generally ground, and the processing method of absorbing the ring with an electromagnetic centerless fixture is often used. The inner ring is driven by the workpiece motor to rotate, and the ring is supported by the supporting block for processing. At present, when grinding, the first support and the second support are set on the outer wall of the inner ring of the bearing to support the inner ring of the bearing to prevent it from moving during the grinding process; however, for the raceway of the inner ring of the large thin-walled bearing This method is not suitable for the grinding of large thin-walled bearings, which is limited by the characteristics of the ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of difficult processing of existing large thin-walled bearing rings, the purpose of the present invention is to provide a grinding process for the inner raceway of large thin-walled bearings method, by improving the layout position of the support points in the existing grinding process, the inner ring of the bearing can not be easily deformed by the extrusion of the grinding wheel during the grinding process, and the grinding accuracy of the inner ring raceway can be effectively improved. Reduce scrap rate

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