摘要
几何误差与热误差是影响数控机床空间精度的两类重要误差,误差项多且产生机理复杂,直接影响机床加工质量,因此对其进行建模与分析至关重要。综述了近5年数控机床几何与热误差测量与分析研究的最新进展,总结了现有误差测量和建模方法的特点。几何误差方面重点综述了基于试件在机测量、基于激光跟踪干涉仪测量以及测量可追溯性分析的研究新进展;热误差方面着重总结了丝杠、旋转轴和主轴核心部件的热误差建模新方法。最终系统地分析了机床误差测量与建模现有方法中尚需解决的技术难点,并探讨了未来的发展方向。
Geometric error and thermal error are two kinds of important errors affecting the spatial precision of CNC machine tools.There are many error items and the mechanism is complex,which directly affects the machining quality of the machine tool.Therefore,it is very important to model and analyze it.This paper reviews the recent advances in the measurement and modeling of geometric and thermal errors of CNC machine tools in the past five years,and summarizes the characteristics of existing error measurement and modeling methods.In the aspect of geometric error,the research progress of on-machine measurement,laser tracking interferometer measurement and measurement traceability analysis is reviewed.The thermal error modeling methods of ball screw,rotary axis and spindle are summarized.Finally,the technical difficulties that need to be solved in the existing methods of machine tool error measurement and modeling are systematically analyzed,and the future development direction is discussed.
作者
项四通
杜正春
杨建国
XIANG Sitong;DU Zhengchun;YANG Jianguo(School of Mechanical Engineering andMechanics,Ningbo University,Ningbo Zhejiang 315211,China;School of MechanicalEngineering,Shanghai Jiao Tong University,Shanghai 200240,China)
出处
《机械设计与研究》
CSCD
北大核心
2019年第6期52-57,共6页
Machine Design And Research
基金
国家自然科学基金资助项目(51705262)
上海市军民融合专项-睿涛,闵行区产学研合作计划项目(2013MH111)
上海交通大学机械系统与振动国家重点实验室开放基金项目(MSV201911)
宁波市肖然科学基金资助项目(2018A610147)。
关键词
数控机床
几何误差
热误差
误差测量
误差建模
CNC machine tool
geometric error
thermal error
error measurement
error modeling
