Special Fixture for Machining Precision Hard Turning Bearing Outer Ring

Abstract

The invention relates to a special clamp for machining and precise hard turning of a bearing outer ring. The special clamp comprises a base, telescopic connecting rods, an outer cone sleeve and an inner cone sleeve assembly. The inner cone sleeve assembly is composed of an inner cone sleeve body, a plurality of fan-shaped sliding blocks, a limiting rod and an ejector plate. The end, small in diameter, of the inner cone sleeve body is fixedly connected with the base. A center hole is formed in the other end of the inner cone sleeve body. The fan-shaped sliding blocks are fixedly connected to the end face of the inner cone sleeve body and are distributed along the periphery of the center hole. The limiting rod is fixed in the center hole, and the ejector plate is fixed to the end portion of the limiting rod. The outer cone sleeve is arranged at the end, large in diameter, of the inner cone sleeve assembly in a sleeving manner, and the outer cone sleeve and the base are connected through the telescopic connecting rods. The special clamp is simple in structure, high in universality and long in service life; and the bearing outer ring in the clamping process cannot deform, the step of adjustment after deformation is omitted, and the accuracy of the bearing outer ring precision is ensured.

Description

technical field [0001] The invention relates to a fixing device, in particular to a fixture used for machining the outer ring of a bearing, specifically a special fixture for machining the outer ring of a bearing with precision hard turning. Background technique [0002] The outer ring of the bearing is an important part of the bearing. In recent years, with the rapid development of the economy and the gradual improvement of the production level, the precision of the mechanical equipment is getting higher and higher. As an important part, the bearing directly affects the quality of the whole set of mechanical equipment. As an important part of the bearing, the outer ring of the bearing directly affects the quality of the bearing. [0003] As we all know, the processing accuracy of precision bearings is extremely high. At the same time, the outer ring of the bearing is a thin-walled part, and the material is special. At present, the processing method of the outer ring of prec...

AI Technical Summary

Problems solved by technology

But the effect is very poor. The reason for the error is that the wall of the workpiece is thin and it is easy to be deformed by force. Due to the internal stress caused by clamping, the workpiece will produce elastic deformation, resulting in inconsistent dimensions before and after the clamping force is removed.

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