一种电主轴在线动平衡测试算法  

A Motorized Spindle Online Dynamic Balance Testing Algorithm

作　　者：张珂[1] 李桐[1] 邓华波[1] 吴玉厚[1] 

机构地区：[1]沈阳建筑大学机械工程学院,辽宁沈阳110168

出　　处：《沈阳建筑大学学报（自然科学版）》2016年第1期148-155,共8页Journal of Shenyang Jianzhu University：Natural Science

基　　金：国家自然科学基金项目(51375317);教育部创新团队支持计划项目(1RT1160);辽宁省科技创新重大专项项目(201301001)

摘　　要：目的研究一体式轴套高速电主轴的动平衡在线测量方法.方法采用傅里叶变换方法、多项式曲线拟合和胡克定律相结合的方法设计开发出一套能测出电主轴动不平衡力大小、矢量位置和方向的算法,利用labview对算法进行编程,通过实验,在labview模块中可得到动不平衡力的大小、矢量位置和方向.结果通过labview模块中得到的电主轴动不平衡力大小为11.274 8 N,距离左端点位移量为172 mm,矢量方向为4.108 55°.实际理论值动不平衡力14.231 6 N,实际距离左端点位移量mm,实际矢量方向4.125 42°.两者对比很相近.结论主轴动不平衡检测计算方法适合一体式轴套下各种主轴运行工况,实现主轴动不平衡的计算,可实现高速主轴动平衡状态的监控、分析、调整;所开发的算法具有良好的实时性和可视性,能直观准确地检测分析出电主轴转子不平衡时所受力的大小和位置,从所获特性可知该系统可提高高速主轴的回转精度,实现高质量零件的加工,并在实验中体现出良好的应用效果和实用价值.The aim of this paper is to propose appropriate method for measuring dynamic unbalance line integrated high-speed spindle sleeve. Methods Fourier transform method,polynomial curve fitting and Hooke＇s law method of combining design and develop a set of electric spindle can measure dynamic unbalance force magnitude,location and direction of the vector algorithm,using labview programming algorithm,Through the experiment,in labview module available dynamic imbalance force size,position and direction vector. The results obtained by labview module electric spindle dynamic unbalance force size 11. 274 8 N,from the left point displacement of 172 mm,the vector direction is 4. 108 55°. The theoretical value of the actual dynamic unbalance force 14. 231 6 N,the actual amount of displacement from the left point 173 mm,the actual vector direction4. 125 42°. Comparison betw een the two is very close. Conclusion The development of a feasibility electric Spindle Dynamic Balancing online test algorithm; spindle dynamic imbalance calculation method is suitable for detecting a variety of one-piece sleeve spindle operating conditions,to achieve dynamic imbalance calculation of the spindle can achieve high-speed spindle Balancing state monitoring,analysis,adjustment; developed algorithm has good real-time performance and visibility,can accurately detect visually analyze the size and location of the force on the rotor when electric spindle unbalanced and reflected in the experiment a good effect and practical value.

关 键 词：电主轴 动平衡 在线测量 傅里叶变换 多项式曲线拟合 

分 类 号：TH113.1[机械工程—机械设计及理论]