【作者】 郭永丰； 张凯； 凌泽斌； 侯朋举； 张晓友；

【Author】 Guo Yongfeng;Zhang Kai;Ling Zebin;Hou Pengju;Zhang Xiaoyou;Harbin institute of technology;Nippon Institute of Technology;

【机构】 哈尔滨工业大学特种加工与机电控制研究所； 日本工业大学；

【摘要】 针对微小孔电火花加工主轴伺服响应速度慢,跟踪性差的问题,提出并设计了一种基于多自由度可控磁悬浮伺服驱动原理的微小孔电火花加工主轴,介绍了其基本结构和工作原理,利用有限元Ansoft软件对主轴结构的磁场及磁力进行分析设计。理论研究和有限元分析结果表明,该主轴驱动力响应频率及转子所受的悬浮力能够满足要求,各自由度可以在平衡位置附近一个小的运动行程范围内运动,并且各自由度之间几乎没有耦合作用,各自由度可以采用分散控制。更多还原

【Abstract】 In the Micro-Hole EDM,spindle servo response frequence is low,and real-time tracking is poor.According to these problems, a Micro-Hole EDM spindle based on the magnetic levitation servo drive form, is proposed and designed. The basic structure and principle are introduced, and the magnetic field and magnetic force are analyzed by the the finite element software Ansoft.The results of theory analysis and finite element analysis have shown that the response frequency and the suspension forces are satisfied with the design desire.The spindle can move in a small range around the balanceable position.There is no coupling in the each degree of freedom, so the independent PID can be used in the control of each degree.更多还原