Joint bearing inner ring processing method

Abstract

The invention relates to the technical field of mechanical processing, and especially relates to a joint bearing inner ring processing method. The method comprises the following steps: 1, lathing an inner pore, a plane surface and a spherical surface by using a joint bearing inner ring blank through a common lathe, wherein the joint bearing inner ring blank is a tube; 2, carrying out heat treatment on the joint bearing inner ring blank to make the hardness reaches a preset value; 3, milling the joint bearing inner ring blank plane surface through a surface grinder; 4, carrying out plunge surface grinding on the joint bearing inner ring blank through a formed grinding wheel, and carrying out coarse grinding on the joint bearing blank spherical surface; 5, grinding the joint bearing blank inner pore through an inner pore grinder; and 6, sequentially putting joint bearing inner rings in the V-shaped grooves of the lower mill plate of a grinder in a separate manner by using separators, and carrying out spherical surface grinding through a ball mill to ensure that the surface roughness reaches the preset value. The method reduces the processing cost of the joint bearing inner rings and improves the quality of the joint bearing inner rings.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a processing method for an inner ring of a joint bearing. Background technique [0002] At present, the inner ring of the joint bearing (such as figure 1 ) is mostly processed by mechanical processing, and there are two main known methods for processing the inner ring of spherical plain bearings: 1) Grinding the two planes and hard alloy steel balls (hardness HRC60~64) of the bearing product in sequence Drilling, chamfering, grinding inner hole processing. This method saves processing steps, and the spherical difference and smoothness of the spherical surface are both good. However, due to the high hardness of the finished steel ball, the time for reprocessing is greatly prolonged, resulting in low work efficiency, and it is easy to cause surface burns when the two ends are ground, resulting in a decrease in the hardness of the inner ring of the bearing. In addit...

AI Technical Summary

Problems solved by technology

However, in the grinding of the plunge-type forming grinding wheel, the spherical difference is large, and the grinding area is large, the spherical surface is easy to burn, the surface finish of the polishing treatment is not good, the spherical diameter and size are scattered, and the qualified rate of the finished product is low.

Images