摘要
对五轴加工仿真中刀具扫掠体的计算方法进行了研究。根据刀位文件,构建了运动坐标系。给出一个通用的刀具模型,方便了用户定义刀具和编辑刀具。分析了典型的球头刀临界线的计算方法,该方法独立于具体的机床结构。重点研究了国内外常用求解方法后,设计并实现了一种快速的分解表示方法,采用这种方法近似构造扫掠体。该方法已经应用到由ACIS+HOOPS组件技术开发的五轴数控仿真系统中,实验证明这种方法可以很好的满足加工精度和时间要求。
This paper analyzed the calculation algorithm of the envelope surface in five-axis NC machining simulation.According to the cutter location files,a motion coordinate system is constructed.In order to edit the tools,the geometry of a generalized cutter is given.Then the typical ball-end mill is analysised and the calculation formulas of the critical curve are obtained.The proposed formulas are independent of the types of the NC machines.We implemented one fast calculation algorithm of the envelope surface after studying the general algorithms.Using ACIS 3D Modeling and Hoops toolkits,a prototype system was developed.This algorithm has been applied to the system and can meet the requirements of high precision machining.
出处
《组合机床与自动化加工技术》
北大核心
2010年第6期10-14,共5页
Modular Machine Tool & Automatic Manufacturing Technique
基金
科技重大专项基金(2009ZX04009-022)
关键词
五轴
扫掠体
运动坐标系
通用刀具模型
ACIS
five-axis
envelope surface
motion coordinate system
generalized cutter
ACIS
