混联机床位置精度的误差补偿  

Position Error Compensation of a Hybrid Machine Tool

作　　者：陈纯[1,2] 黄玉美[1] 韩旭炤[1] 江国焱[1] 

机构地区：[1]西安理工大学机械与精密仪器工程学院数控机床及机械制造装备集成教育部重点实验室,西安710048 [2]陕西理工学院机械工程学院,汉中723000

出　　处：《机械科学与技术》2009年第7期886-889,共4页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家自然科学基金项目(50075069)资助

摘　　要：对混联机床的位置误差进行了检测和补偿。利用激光干涉仪对混联机床沿X向导轨做直线运动时的定位误差和重复定位误差进行了检测,参照数控轴线的定位精度和重复定位精度的定义对测量的误差数据进行了分析和处理,采用可编程多轴运动控制卡PMAC的丝杠补偿和间隙补偿功能对X轴线单、双向定位误差和重复定位误差进行了补偿,并将补偿前后的检测结果进行了对比。对比结果表明:轴线的定位误差和重复定位误差都显著减小,说明所采用的补偿策略可行有效。Position errors of a hybrid machine tool were measured and compensated. Location error and repetitive position error for the hybrid machine tool with motion along X direction was detected using laser interferometer. Measurement error data was analyzed referring to the definitions of positioning accuracy and re-orientation accuracy for numerically controlled axes. Location error and repetitive position error with unidirectional and bidirectional of X axis were compensated by screw compensation and interval compensation of programmable multi-axis controller （PMAC）, and detection results with/without compensation were contrasted. The result shows that the compensation strategy is feasible and effective since errors of axis was reduced obviously.

关 键 词：导轨 精度检测 PMAC 误差补偿 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]