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本文对用极座标表示的圆图象描写主轴误差运动提出了不同的看法,认为圆图象不能确切地描写主轴轴心线的误差运动,同时指出滤波法由于滤波器频率特性的影响,使其测量精度不高,进而提出用曲线拟合法剔除基波以测量主轴回转精度。本文介绍了曲线拟合法的基本原理和试验方法,在初步试验的基础上指出该法的优越性与可行性
In this paper, we put forward different opinions on the description of the error of the principal axis of the circular image represented by polar coordinates. It is concluded that the circular image can not exactly describe the error motion of the principal axis of the principal axis. Meanwhile, the influence of the filter method on the frequency characteristics of the filter The measurement accuracy is not high, and then put forward the curve fitting method to eliminate the fundamental wave to measure the spindle rotation accuracy. This paper introduces the basic principles and test methods of curve fitting method, points out the superiority and feasibility of the method on the basis of the preliminary test