超精密微量进给刀架的研制

Study of Ultra - precision Micro - feeding Tool Post

介绍一种新型超精密微量进给刀架，该刀架采用双簧片铰链结构的弹性变形体，刀尖高度可实现０～０．３ｍｍ微量调整．实验结果表明，该刀架具有良好的静、动态特性，其轴向静刚度为１００Ｎ·μｍ(－１)，行程为０～５ｍｍ，重复定位精度不超过±０．０２μｍ．ｘ方向、ｙ方向的固有频率最低为４．３６ｋＨｚ和４．０５ｋＨｚ．能够满足超精密加工的需要．

This paper introduces a kind of new type ultra- precision micro - feeding tool post. The tool post adoptselastic deformaton material with double springe hinge servo. The tool tip's height can realize micro - adjustment 0~ 0.3 mm. The results of the experimentS show that the tool post's characteristic of static and and dynamic state is better,the axialstatic stiffiness is 100 N·um-, the navel is 0 ~ 5 up, and the relocation's precision is less than± 0.02 mp. The lowest matulal agency in the dimection of x and y is 4.36 kHz and 4.05 kHz, which can satisfythe requirements of the ultlapmeisin machining.