基于STL数据模型的刀具轨迹生成  

Tool Path Generation Based on STL Data Model

作　　者：曾晓华[1] 刘静华[1] 闫光荣[1] 

机构地区：[1]北京航空航天大学,北京100083

出　　处：《工程图学学报》2002年第1期8-14,共7页Journal of Engineering Graphics

摘　　要：基于STL文件的数控加工技术,可为解决快速仿制成形问题提供一个切实可行的方案,具有重要的实用价值。本文引用并推广了局部等距的概念,设计了可满足多种铣刀加工要求的局部偏置模型生成算法,并论述了加工轨迹生成算法等关键问题。实践证明,该算法精度高,速度快,且可有效地解决多面体模型轨迹生成中的干涉和碰撞问题。The tool path generation based on a STL data model is studied. This paper quotes and extends the concept of the local offsetting and develops a new algorithm of tool path generation for different tools. By taking advantage of local offsetting model the interference and collision in tool-path generation can be avoided. It is shown that the strategy suggested is satisfied in both computing efficiency and reliability.

关 键 词：STL数据模型 多面体模型 快速原型制造 刀具轨迹生成 偏置模型 数控加工 

分 类 号：TG659[金属学及工艺—金属切削加工及机床] TP391.7[自动化与计算机技术—计算机应用技术]