Clamp assembly for finish machining of thin-wall ring columnar part and machining method

Abstract

The invention provides a clamp assembly for finish machining of a thin-wall ring columnar part. The outer diameter of the thin-wall ring columnar part is 1.05-1.25 times of the inner diameter of the thin-wall ring columnar part, and the axial height of the thin-wall ring columnar part is smaller than the outer diameter of the thin-wall ring columnar part. The clamp assembly comprises a first clamp and a second clamp, the first clamp is used for clamping the axial two ends of the part and carrying out finish machining on the outer circle face of the part, the outer circle of the clamping position of the first clamp is not in contact with the inner circle of the part, and the second clamp is used for clamping the outer circle of the part and carrying out finish machining on the inner circle face of the part. The invention further correspondingly provides a machining method of the thin-wall ring columnar part. By means of the clamps and the method, the roundness and the coaxial precision of the thin-wall ring columnar part obtained after finish turning is carried out can be obviously improved.

Description

technical field [0001] The invention relates to the technical field of mechanical processing for improving the accuracy of parts, in particular to a fixture assembly and a processing method for finishing thin-walled ring-cylindrical parts. Background technique [0002] In the driving axle of heavy-duty trucks, many models have wheel-side reduction mechanisms. The current wheel-side reduction mechanisms are indispensable for internal ring gear parts. The structure of the tooth blank of this part is a thin-walled ring-cylindrical part. During the processing, it is very difficult to guarantee the accuracy of the inner and outer roundness and coaxiality. The conventional process methods such as rigid point contact method cannot meet the requirements of the product drawing. Therefore, inventing a new fixture assembly and processing method to improve the machining accuracy of thin-walled ring-cylindrical parts is the basis for making high-end (tooth blank) products, and will have ...

AI Technical Summary

Problems solved by technology

In addition, the processing method of this part is to process the inner circle of the part first, and then the outer circle of the part, and this plan does not involve any method to ensure the machining accuracy of the inner circle

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