磁悬浮控制技术在非圆镗削加工中的应用  

Application of Magnetic Levitation Technology to Non-circular Boring

作　　者：王海峰[1,2] 胡德金[2] 

机构地区：[1]青岛大学机电工程学院,山东青岛266071 [2]上海交通大学机械与动力工程学院,上海200030

出　　处：《实验室研究与探索》2008年第10期9-13,共5页Research and Exploration In Laboratory

基　　金：国家自然科学基金资助项目(50175072)

摘　　要：为了实现非圆异形孔的镗削加工,借鉴了主动磁悬浮控制技术。针对径向异形孔的加工特点,对磁悬浮主轴进行了运动学分析,建立了描述其运动的综合机电方程,并在工作点上进行了线性化处理。为了实现磁悬浮主轴的径向微动控制,采用了增益调度自适应控制算法。以某型号活塞的销孔加工为例进行了镗削试验,结果表明,通过控制磁悬浮主轴的旋转轴心沿设定的轨迹移动,能够实现椭圆异形孔的加工,并且能够获得高的加工精度和表面粗糙度。For non-circular boring, the actively magnetic levitation technology was used. The kinetic analysis was carried out for the spindle levitated by active magnetic bearings with respect to the characters of non-circular holes. The electromechanical equations were established and linearized at the operating points. The pole placement method with gain scheduling method was applied to the radial inching control of the spindle. In the experiment, a piston pin bore was machined at the test rig. The cutting test shows that the axis trajectory can be controlled by active magnetic bearings, and higher working accuracy as well as better surface irregularity of non-circular piston pin bore can be obtained.

关 键 词：磁悬浮 主轴 非圆镗削 

分 类 号：TP271.2[自动化与计算机技术—检测技术与自动化装置]