Mirror milling equipment and method for thin-walled parts based on non-contact support

Abstract

The invention discloses thin-walled part mirror image milling equipment and method based on follow-up non-contact support. The thin-walled part mirror image milling equipment comprises a milling system, a working table and a supporting system, wherein the milling system involves a main shaft, a milling cutter is mounted at the end part of the main shaft, the supporting system involves a supportinghead, the milling system further involves a sensor, a central through hole is formed in the supporting head in the axial direction, the thin-walled part mirror image milling equipment further involves an air supplying system and an industrial personal computer for achieving automatic control, and a pump and a valve are mounted in the air supplying system. In the cutting process, the force millingdirection and the amplitude data of the milling cutter are collected in real time by a sensor, and under the working condition that the axial cutting depth is small, the central through hole of the supporting head generates thrust to a thin-walled part through a high-pressure air flow flowing to the back surface of the thin-walled part to prevent the thin-walled part and the milling cutter from separating, so that the occurrence of the impact vibration is avoided; and under the working condition that the axial cutting depth is large, the central through hole of the supporting head generates tension to the thin-walled part through a high-pressure air flow away from the back surface of the thin-walled part, so that the occurrence of overcutting is avoided.

Description

technical field [0001] The invention relates to the field of high-efficiency and high-precision machining of weakly rigid thin-walled components, and in particular to mirror milling equipment and methods for thin-walled parts based on non-contact support. Background technique [0002] Thin-walled structures are widely used in aerospace engineering for the purpose of reducing the weight of the spacecraft and improving the carrying capacity. The characteristics of these thin-walled structures include large spatial dimensions and complex shapes. In the early days, due to the backward processing technology, these thin-walled structures were usually processed by step-by-step manufacturing, and then assembled and formed, that is, a complex large-scale structural part was usually decomposed into many parts with simple topology and easy processing. After the parts of the structure are machined, the final thin-walled structure is obtained by welding or riveting. It is difficult to e...

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide thin-wall mirror milling equipment and method based on non-contact support, so as to solve the problem of overcut or scratch caused by existing mirror milling technology

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