The Influence of Inertia Force and Viscous Friction on Contouring Errors in Circular Interpolation
The Influence of Inertia Force and Viscous Friction on Contouring Errors in Circular Interpolation
复制标题
惯性力和粘性摩擦对圆弧插补轮廓误差的影响
DOI：
10.2493/jjspe.69.1306
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发表时间：
2003
影响因子：
--
通讯作者：
A. Matsubara
中科院分区：
文献类型：
--
作者：
M. Hamamura;Junichi Fujita;Y. Kakino;A. Matsubara
本文研究了数控机床圆弧插补中的轮廓误差问题。分析表明，在圆弧插补中，由于驱动质量、进给系统刚度和直线导轨的粘滞阻尼系数这三个参数的不同，会产生椭圆误差。特别地，惯性力在每个轴上引起不同的误差，并且粘性摩擦使椭圆轮廓误差曲线倾斜。利用卧式加工中心进行了多项运动试验。实测轮廓误差曲线与仿真结果吻合良好。
This paper considers contouring errors in circular interpolation on NC machine tools. It is shown by using analytical models that the difference of the following three properties between two axes causes an elliptical error on circular interpolation: the driven mass, the stiffness of feed drive system, and the viscous damping coefficient of linear guide. Especially, the inertia force causes a different error on each axis, and the viscous friction slopes the elliptical contouring error profiles. Several motion tests are conducted by using a horizontal machining center. Measured contouring error profiles coincide well with simulated results.