静压气体轴承主轴系统回转误差的控制与补偿  

Control and Compensation of Rotary Error by Aerostatic Bearing Spindle System

作　　者：李树森[1] 任毅[1] 陈素平[1] 潘春阳[1] 

机构地区：[1]东北林业大学机电工程学院,黑龙江哈尔滨150040

出　　处：《润滑与密封》2016年第2期23-25,31,共4页Lubrication Engineering

基　　金：哈尔滨市科技创新人才研究专项资金项目(2012RFXXG077);黑龙江省自然科学基金项目(E201215);高等学校博士学科点专项科研基金博导类课题(20120062110006)

摘　　要：为了提高主轴系统的回转精度,以数控机床静压气体轴承的主轴系统为研究对象,设计以静压气体轴承为主承载元件、主动磁轴承为辅助元件的主轴系统结构。对主轴回转误差的分离进行建模分析,利用主动磁轴承的可控性设计回转误差的控制和补偿方法,并用MATLAB仿真分析该方法对回转误差的补偿结果。结果表明,该主轴系统利用主动磁轴承(AMB)的可控性和静压气体轴承较高的回转精度,由磁轴承作为误差补偿机构,提高了主轴系统的回转精度。In order to improve the rotary accuracy of spindle system, the structure of the spindle system was designed with the aerostatic bearing as main components, the active magnetic bearings （AMB） as auxiliary components, by taking the spindle system of numerical control （NC） machine tool of aerostatic bearing as the research object.The model of the separation of spindle rotation error was set up and analyzed, the rotary errors control and compensation methods were designed by using the controllability of AMB, and the compensation result on rotary errors was simulated by MATLAB.The results show that by using the controllability of AMB and the higher rotary accuracy of the aerostatie bearings, through using the magnetic bearing as a mechanism of error composition, the rotation accuracy of spindle system is improved.

关 键 词：静压气体轴承 磁轴承 回转误差 误差补偿 

分 类 号：TH133.3[机械工程—机械制造及自动化]