超精密车床进给系统两座标双重定位技术  

Two Coordinate and Dual Positioning Technology Research in Feed System of Ultra-Precision Lathe

作　　者：王世民[1] 李圣怡[1] 朱建忠[1] 解旭辉[1] 

机构地区：[1]国防科技大学机电工程与仪器系,长沙410073

出　　处：《光学精密工程》1993年第6期26-29,共4页Optics and Precision Engineering

摘　　要：超精密车床进给系统普遍存在大行程与高精度之间的矛盾,研制出动、静态特性好、行程大、精度高的进给系统是当前超精密加工亟需解决的关键技术之一。本文提出了一种新原理及实现方法,即综合利用计算机、动态检测、信号处理、控制理论、传感器、微位移技术等,将精确进给量分解成主进给量和补偿进给量两部分,分别进行协调连续控制。从而解决大行程与高精度之间的矛盾。利用该技术,能使普通进给系统定位精度提高十多倍,同时又大大扩大了进给微系统的行程。The high accuracy is commonly in conflict with the large-stroke in the feed system of Ultra-precision lathe, so one of the key technologies in presently Ultra-precision-maching is to develope a kind of feed system with better dynamic and stationary characteristic, large-stroke and high accuracy. This paper contributs a new kind of principle and its practical methol. It comprehensively utilizes computer technology,dynamic detection, signal processing, control theory, sensor and micro-displacement technologies etc. to divide the accurate feed into two parts; master feed and compensation feed. The two parts are harmoniously continuously controlled respectively. This method effectively solve the contradiction between the large-stroke and high accuracy. The technique can increase the positioning accuracy of common feed system by ten times and enlarge the stroke of the micro-feed system.

关 键 词：超精密车床 双重定位 模型预测 

分 类 号：TG519.3[机械工程—精密仪器及机械]