Method for machining lens barrel type part with center of mass deviating from rotation center

Abstract

The method relates to the field of machining, in particular to a method for machining a lens barrel type part with the center of mass deviating from the rotation center. The method comprises the following steps of casting a blank; carrying out heat treatment, and carrying out quench aging treatment; drawing a blank allowance distribution line by taking a non-machining surface as a benchmark by a bench worker; milling the surfaces of a mounting base on a milling machine and reserving 0.1mm as the fine machining allowance for the end surface below a ruler; carrying out rough turning on each holeon a lathe and reserving 0.5mm as the allowance for the single side of the finish machining surface; carrying out heat treatment, carrying out stress-relieving artificial aging so as to eliminate themachining stress; and carrying out finish machining on the benchmark mounting surface until the flatness of the lower end surface scraped by the bench worker is within 0.006mm, and scraping the othersurface until the perpendicularity of the other surface to the surface is within 0.006mm. The method has the advantages that the operation simple, the vibration in the machining process is small, thedimensional tolerance of the part can be guaranteed, and the machining precision and the production efficiency of the part can be improved.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a processing method for lens barrel parts whose center of mass deviates from the center of rotation. Background technique [0002] Lens barrel parts are often encountered in optoelectronic products. Due to strict installation position requirements, the structural center of mass of such parts is often not on the center of rotation. If it is processed on an ordinary lathe, not only the processing efficiency is low, but also the roundness and cylindricity of the hole are very poor, and the coaxiality of the holes at both ends is even more difficult to guarantee; due to the special structure, the wall thickness of this type of parts is thin, and the center of mass deviates from the rotation Center, when turning the inner hole, the roundness and cylindricity will be poor, and the position size of the hole center is also difficult to guarantee. The shape of this part is different ...

AI Technical Summary

Problems solved by technology

The disadvantages of this type of method are that the longer the length of the part, the greater the overhang of the upper mandrel, the more the center of mass deviates from the axis of the hole, the greater the centrifugal force generated after the part rotates, and the greater the vibration generated during processing. It is difficult to guarantee geometrical tolerances such as degree and coaxiality, and the product qualification rate is low, which seriously affects the production cycle