CAD/CAPP/CAM集成环境下CAPP零件信息的提取

通过对螺旋孔型的钢球斜轧轧辊的结构分析,在ARX开发环境下,先利用MDT的API开发工具,从零件的三维模型中提取零件的轮廓信息,确定零件的类型和基本形状、加工特征和基本尺寸;再根据对应的二维工程图提取具体的工艺信息,最后根据二维图纸和三维模型的对应关系,对信息进行分类整理和自动识别.在此基础上开发了一个斜轧轧辊的零件信息系统,实现了在CAD/CAPP/CAM集成环境下,从CAD系统中直接提取零件信息,并转化为CAPP系统的工艺信息.该方法也可以自动提取和识别一般的旋转类零件信息.

Parts Information Extracting for CAPP System in CAD/CAPP/CAM Integrated Circumstance

Based on the structural analyse of the steel ball rollers of skew rolling, the profile data of parts such as type, basic figure, manufacturing feature and size was extracted from the 3-dimention model in the ARX exploiting circumstance using MCAD API, the developing tools of MDT. The manufacturing feature data was extracted according to the corresponding 2-dimention drawings. At last, parts information was put in order and recognized automatically on the basis of the relations between the model and drawings. A extracting information system for the rollers was developed, directly from the CAD system then turned it into the CAPP system in the CAD/CAPP/CAM integrated circumstance. The method can be used in extracting the information of general rolling parts also.