并联机床后置处理器的开发及实验研究  

Development and Experiment Research of the Postprocessor for Parallel Kinematic Machine Tools

作　　者：李铁民[1] 叶佩青[1] 汪劲松[1] 

机构地区：[1]清华大学精密仪器与机械学系,北京100084

出　　处：《中国工程科学》2003年第12期80-86,共7页Strategic Study of CAE

基　　金：国家 973重点基础研究项目 (G19980 60 30 7);国家高技术"十五" 863项目(2 0 0 1AA42 2330 );(2 0 0 1AA421110 )

摘　　要：以六自由度 6 -TPS型并联机床为模型 ,阐述了机床控制数据的生成原理和流程 ;以此为基础 ,规划了后置处理器的功能和整体结构。对若干关键技术进行了研究和探讨 ,包括基于参数化二进制格式的内部数据传输 ,基于刀轴矢量的笛卡儿空间粗插补算法 ,三维和二维刀具半径补偿 ,刀位文件的预处理以及加工代码的词法和语法检查等。最后介绍了利用本系统进行的切削实验 ,验证了系统的工程实用性。Based on the structure of 6-TPS parallel kinematic machine tools (PKMTs) with 6 degrees of freedom(DOF), the theory and procedure to generate control data is introduced. On the basis of above analysis, the functions and framework of a postprocessor for this type of machine tools is designed. Some important methods for carrying out the postprocessing of the machine are researched and demonstrated, including inner data transfer protocol by parameterized binary data, interpolating algorithm in Descartes coordinate system, planar and spatial tool radius compensation, preprocessing of cutter location data, and word and syntax check of machining codes. Finally, a real machining experiment on the system mentioned above is introduced. The result shows that it can be successfully used in real manufacturing environment.

关 键 词：并联机床 后置处理算法 后置处理器 

分 类 号：TP242[自动化与计算机技术—检测技术与自动化装置] TG659[自动化与计算机技术—控制科学与工程]