数控机床几何误差的辨识研究  

CNC Machine Tool Geometric Error Odentification Study

作　　者：王移风[1] 汪琛琛[2] 曹衍龙[2] 杨将新[2] 

机构地区：[1]浙江科技学院,浙江杭州310023 [2]浙江大学现代制造工程研究所,浙江杭州310027

出　　处：《机械设计与制造》2014年第2期136-139,共4页Machinery Design & Manufacture

基　　金：国家自然科学基金资助项目(50835008)

摘　　要：构建了基于扫频激光干涉技术的数控机床几何误差测量系统,介绍了测量系统的关键组成模块,给出了扫频激光干涉测量系统的总体结构和工作原理。以三轴数控机床为例,分析了数控机床的几何误差参数并构建了机床综合误差模型,分析了机床几何误差参数不同的辨识方法的特点,提出机床几何误差参数辨识的7线法,基于此系统实现误差数据的采集和机床几何误差参数的快速辨识;最后通过具体试验测量三轴数控机床误差,得到其几何误差参数的辨识结果。It proposes the laser wavelength scanning intetferenee error measuring system, which analyzes the building and constructs of error measuring system. With three-axis NC machine tools as an example, it analyzes the geometric error and the precision model of NC machine tools. After that a seven-line method is proposed here. The seven-line method is a new geometric error parameter identification method, which is simple and accurate in geometric error parameter identification. Finally, an experiment has been conducted on a milling machine; offer the calculation and analysis of the measuring data, the geometry error parameters are given.

关 键 词：几何误差 7线法 扫频激光干涉 精度分析 

分 类 号：TH16[机械工程—机械制造及自动化]