Follow-up turning device and method of thin-wall curved generatrix revolving part

Abstract

The invention relates to the technical field of machining, in particular discloses a follow-up turning device and method of a thin-wall curved generatrix revolving part. The device comprises a mould, a pressing structure, a numerical control system and a turning structure. A part to be machined is put on the mould similar to the part to be machined in curve radian, and is pressed and fixed through a tail tightening piece at the rightmost end; both the pressing structure and the turning structure are pressed against the surface of the part to be machined; and the motion trails of the pressing structure and the turning structure are controlled through the numerical control system, wherein the numerical control system sends a numerical control signal, controls a servo system connected with the turning structure, and drives the turning structure to machine the part to be machined. In the device and the method, a pressing wheel of the pressing structure forms a stable pressing area around a pressing point, and a turning point is positioned in the stable pressing area, so that the part with better wall thickness uniformity can be turned by selecting a pressing wheel with the proper fillet radius, a proper locus of the pressing wheel, a turning tool with the proper fillet radius, a proper locus of the turning tool and a proper turning amount.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and in particular relates to a follow-up turning device and method for a thin-wall curved busbar revolving body part. Background technique [0002] Thin-wall curved busbar rotary parts for specific purposes, such as spin-formed launch vehicle booster stage box bottom shells, have the following characteristics in manufacturing and use: 1) The parts have high requirements for wall thickness accuracy and low requirements for roundness; 2) There is a certain amount of mechanical processing in the thickness of the plastic forming part; 3) The roundness of the forming part is not enough to ensure the wall thickness by machining the inner and outer surfaces; 4) The surface of the plastic forming part cannot be accurately repeated. Contents of the invention [0003] The object of the present invention is to provide a follow-up turning device and method for a thin-wall curved generatrix re...

AI Technical Summary

Problems solved by technology

[0002] Thin-wall curved busbar rotary parts for specific purposes, such as spin-formed launch vehicle booster stage box bottom shells, have the following characteristics in manufacturing and use: 1) The parts have high requirements for wall thickness accuracy and low requirements for roundness; 2) There is a certain amount of mechanical processing in the thickness of the plastic forming part; 3) The roundness of the forming part is not enough to ensure the wall thickness by machining the inner and outer surfaces; 4) The surface of the plastic forming part cannot be accurately repeated

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