Turning clamp and turning fixing method for thin-wall deforming part

Abstract

The invention discloses a turning clamp and turning fixing method for a thin-wall deforming part. The turning clamp for the thin-wall deforming part comprises a base and a compression mechanism, wherein the base is used for bearing a to-be-processed part and installed on a machine tool spindle and rotates along with the rotation of the machine tool spindle; and the compression mechanism is used for compressing the to-be-processed part on the base. The base is provided with multiple groups of eccentric locating mechanisms, wherein the eccentric locating mechanisms are eccentrically installed on the base and used for making tight contact with the locating face of the to-be-processed part obtained after generating stress deformation through the rotation in the radial direction of the to-be-processed part and radially limiting the to-be-processed part through locking; rotational adjusting contact and locking fixing are conducted by the eccentric locating mechanisms on the to-be-processed part in at least three directions. By means of the turning clamp and the turning fixing method, the elastic deformation of the to-be-processed part after being disassembled from the turning clamp is reduced, the precision of the size, circularity, flatness and the like of the processed to-be-processed part is ensured, and the out-of-tolerance problems are avoided.

Description

technical field [0001] The invention relates to the technical field of aero-engine parts processing, in particular to a turning fixture for thin-walled deformed parts. In addition, the present invention also relates to a method for turning and fixing thin-walled deformed parts including the above-mentioned turning jig for thin-walled deformed parts. Background technique [0002] In the manufacturing process of aero-engines, it is often necessary to process some thin-walled parts with high precision requirements, but the structure and thickness of the parts themselves determine the rigidity of the parts is poor, and stress deformation is easy to occur during the processing, which adds a higher cost to the actual processing. manufacturing difficulty. At the same time, during the process of stabilizing the parts, the size and plane of the parts will change under the action of heat treatment stress relief, and this change value is random, which results in the positioning circle...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a turning fixture and a turning fixing method for thin-walled deformed parts to solve the problem of using assembly fixtures for existing thin-walled deformed parts, and adopting a compression method to fix easily leads to elastic deformation of the end face of the part, which will cause the size of the processed part, The roundness is qualified on the machine tool, but the size, roundness, and flatness of the parts are inconsistent or even out of tolerance after the parts are unloaded.

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