摘要
从超精密加工的基本需求出发,介绍了超精密数控机床的主要误差源及误差产生的原因,讨论了进给系统中非线性因素对系统动态性能、静态性能及加工精度的影响,综述了进给系统非线性控制策略和误差补偿的研究现状,总结了阶段性研究成果,并对今后的研究方向及关键问题进行了展望,最终提出通过先进控制技术和全息误差补偿技术有机结合提高加工精度的总体思路.
The sources and causes of major errors in ultra-precision CNC machine tool are described according to the basic demands of ultra-precision machining. The effects of nonlinear factors in feed system on the dynamic performance, static performance and machining accuracy are analyzed as well. This paper reviews the current research status of nonlinear control strategies in feed system and total error compensation methods, together with the research achievements of this period. As to the future research fields and some key issues, the authors make some prospects. Finally, it is proposed that accuracy of this kind should be improved by combining advanced controlling technology with total error compensation technology.
出处
《南京工程学院学报（自然科学版）》
2007年第1期1-7,共7页
Journal of Nanjing Institute of Technology(Natural Science Edition)
基金
江苏省高校自然科学基础研究资金项目"Nann精度级计算机数控系统关键技术研究"(06KJB460034)
关键词
超精密数控机床
进给系统
非线性
全息误差
ultra-precision CNC machine tool
feed system
nonlinear
total error
作者简介
左健民（1957-），男，博士，教授，主要从事先进数控技术、液压与气压传动方面的研究E-mail：zjm@njit．edu．cn
