面向对象的CAD/CAPP零件特征信息生成系统  

A CAD/CAPP Generative Feature Information System of Part Based Object - Oriented

作　　者：管国[1] 陈飞 韩清[2] 

机构地区：[1]天津工业大学CIMS研究室,天津300160 [2]天津工业大学网络中心,天津300160

出　　处：《中国纺织大学学报》2000年第5期70-72,共3页Journal of China Textile University

摘　　要：提出了用面向对象理论在CAD和CAPP之间建立一个信息模型系统,直接从三维图形文件中提取几何实体信息,通过专家系统识别出工艺特征。期间,对于难以识别或没有显示的特征信息,通过人机交互的方式予以输入。最后,依据CAPP系统的综合数据,生成了满足CAPP系统需要的特征信息文件。在利用现有的CAD的资源的基础上,实现CAD/CAPP的集成。A system that builds a befitting information model between CAD and CAPP with Object桹riented theory is presented. The geometrical entities information is extracted directly from a 3D ?CAD graphic file. Feature recognition is processed by medium of expert system. Meanwhile, we provide the befitting tool to input the feaure information which is difficult t to be distinguished or doesn' t exist. At last, according to different data of CAPP system, a feature information file which fills the need of CAPP system is generated. Based on the utilization of current CAD resource, this system realizes the integration of CAD and CAPP.

关 键 词：CAD/CAPP CIMS 特征识别 零件信息模型 

分 类 号：TP391.72[自动化与计算机技术—计算机应用技术]