A turning fixture for thin-walled parts

Abstract

The invention discloses a thin-walled parts turning fixture, which comprises a cylindrical clamping body. The clamping body includes an intermediate clamping body, a rear cover plate fixed on the rear end surface of the intermediate clamping body, and a front cover fixed on the front end surface of the intermediate clamping body plate, a stepped surface is provided between the front outer peripheral surface of the intermediate folder body and the rear outer peripheral surface of the intermediate folder body, and cylindrical positioning pins and diamond-shaped positioning pins are arranged on the stepped surface; the front part of the intermediate folder body passes through After the annular chassis of the thin-walled parts is to be processed, the annular chassis is matched with the step surface, and the cylindrical positioning pin and the diamond-shaped positioning pin on the step surface are respectively inserted into two of the three holes on the annular chassis; It is provided with an inner support mechanism and a pressing plate mechanism that cooperate with each other to realize the fixing of the thin-walled parts to be processed. The invention can well solve the positioning or clamping of the thin-walled parts to be processed and the deformation in the processing process, thereby ensuring the processing accuracy requirements of the thin-walled parts to be processed.

Description

technical field [0001] The invention relates to a turning fixture, more specifically, to a turning fixture for thin-walled parts. Background technique [0002] When thin-walled parts need to be turned, the conventional technical solution is to place the part to be processed on the fixed positioning block of the fixture, which will cause deformation of the part to be processed when it is positioned or clamped. If the size of the positioning block is larger than the size of the processed part, the workpiece will be forcibly stretched when positioning the workpiece (because the processed part is a thin-walled part, it is easy to deform); if the positioning block is smaller than the processed part, the positioning A gap will be generated, and the processed part will be forcibly compressed and deformed when the pressure plate is clamped. Especially when the surface of the inner hole of the machined part is a rough surface, it is more difficult to ensure perfect contact between t...

AI Technical Summary

Problems solved by technology

Especially when the surface of the inner hole of the processed part is a rough surface, it is not easy to ensure the perfect contact between the processed part and the positioning block

Therefore, it is impossible to avoid the deformation of the processed parts with the fixture designed by conventional technical solutions, so it is impossible to meet the requirements of machining accuracy, especially for precision parts (such as auto parts)

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