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等误差直线逼近凸轮轮廓曲线节点的改进算法

A New Method for Node Dividing Based on Straight Line Approaching Cam Curve Contour

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【作者】 唐锐张彦博

【Author】 TANG Rui,ZHANG Yan-Bo(Electromechanical Engineering School,Panzhihua College,Panzhihua Sichuan 61700,China)

【机构】 攀枝花学院机电工程学院

【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。

【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.

【关键词】 凸轮直线逼近数控加工
【Key words】 camstraight line approachingNC machining
  • 【文献出处】 机电产品开发与创新 ,Development & Innovation of Machinery & Electrical Products , 编辑部邮箱 ,2009年03期
  • 【分类号】TH132.47
  • 【下载频次】103
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