【摘要】 现有的中小型数控系统无直接进行凸轮轮廓插补的功能,一般是用直线插补或圆弧插补代替,把要加工的轮廓曲线划分成微小的直线段或圆弧段,再求出其节点坐标。本文提出了一个等误差直线逼近曲线的节点划分方法,其特点是计算简单、结果精确,并能确保所有插补段上的逼近误差均等,且能控制其大小。更多还原

【Abstract】 Now existing middle-small NC systems do not have the function of direct cam interpolation.General solution is substituting it with straight line or arc interpolation.In this way,first of all the machined contour curve must divided in many micro-sections of line or arc,and then node coordinates are found.This paper presents a new method for node dividing based on straight line approaching cam contour.The feature of the method is very simple and accurate;also approaching error can be controlled and are equal in all interpolation sections.更多还原