基于UG的一种反倒角数控编程方法

A Numerical Control Programming Method Based on UG

反倒角是指类似于双耳片内槽侧或单耳片刀轴反向侧的孔口倒角几何特征。自定义刀具在反倒角几何特征的数控编程方面是大多数控编程人员的一个技术盲区。阐述了自定义刀具的定义方式:直线段采用长度和角度描述,圆弧线段通过半径圆和弧角唯一确定,对于复杂的曲线段则由连续的微小线段或圆弧线段拟合而成。讲解了常见R型刀具、反倒角T型刀的创建方法及刀具跟踪点的设置意义,对反倒角T型刀编程进行归纳和案例分析,文中涉及的反倒角数控编程方法和技巧值得借鉴和学习。

The reverse Angle refers to the geometric characteristics of the chamfering of the orifice,which is similar to the groove side of the double lug or the opposite side of the cutter shaft of the single lug.The custom tool is a technical blind spot for most nc programmers in the aspect of numerical control programming.This paper expounds the definition of the custom cutter:the straight section is described by the length and angle,the arc section is only determined by the radius circle and arc angle,and the complex curve section is fitted by the continuous tiny line section or arc line section.This paper explains in detail the creation method of common r-type cutter and t-type cutter and the setting significance of tool tracking point,and summarizes and analyzes the programming of t-type cutter.