Machining method of bearing grooves

Abstract

The invention relates to the bearing machining field, in particular to a machining method of bearing grooves. The machining method of the bearing grooves includes the following steps that 0.02 mm allowance is reserved on the groove surfaces of the inner ring and the outer ring of a bearing base body; sand blasting treatment is performed on the bearing base body, carborundum is selected as sand particles for sand blasting treatment, the pressure of compressed air is 6 MPa, the sand blasting depth is 0.02 mm, and micro pits are made to form in the surfaces of the bearing grooves; the bearing base body is placed in a stirrer, then hot water is added in, and stirring and cleaning are performed; the temperature of the hot water can be 90-95 DEG C; and after the base body is cleaned, extrudingforming machining is performed on the bearing grooves. Tungsten steel can be adopted as a raw material of a forming cutter used by the machining method, slow wire cutting machining is performed according to the bearing groove shape, then super-finishing is performed, the size precision reaches IT2 or above, the surface roughness reaches the groove size after extruding forming and reaches P2 level,and meets the bearing precision requirement, the service life of a bearing is prolonged, noise is lowered, and high rotating speed and high load of the bearing are achieved.

Description

technical field [0001] The invention relates to the field of bearing processing, in particular to a method for processing a bearing groove. Background technique [0002] At present, a bearing refers to a mechanical element that fixes the rotating shaft of a machine at a predetermined position and rotates the shaft to support the weight of the shaft and the load applied to the shaft. Due to the friction of the inner and outer ring channels of the bearing under high load and high speed , bending, twisting, extrusion, so it needs to have high precision and high strength. [0003] The existing bearing groove processing method is composed of CNC grinding machine processing, oilstone ultra-finishing treatment and other processes (excerpted from "Rolling Bearing Manufacturing Technology"). Among them, the wear of the grinding wheel of the grinding machine in the grinding machine processing process will cause a large shape error in the formation of the channel, and the error channe...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a processing method for the bearing groove, which can solve the problems of poor bearing precision, short service life of the bearing, low bearing speed, small load and other low-quality phenomena.