基于STEP机械零件CAD／CAM集成平台的研究

在ＣＩＭＳ／ＣＥ中，ＣＡＤ，ＣＡＰＰ，ＣＡＭ集成是关键技术之一，现在采用的方法多是采用专用格式文件达到数据的集成与共享。本文论述基于ＳＴＥＰ的集成平台技术，采用单五的产品模型，分系统通过对单五产品模型的操作，达到产品数据的共享与交换。为了满足产品数据操作的方便与灵活性，该平台台要对产品数据进行查询，修改及ＳＴＥＰ文件的重构，并且提供ＳＤＡＩ接口及Ｃ函数的调用，以便于其他系统设计信息存取界面，通过Ｓ

Electromechanically Follow up Control \ Technology

In CIMS/CE enginering,integration of CAD CAM CAPP is one of the key techniques.Now,most of the motheds adopted are basing on the specified form files in order to integrate and share the product data.In this article,we will discuss the technique of integrated STEP platform which adopts single product model and makes its subsystem exchange imformation by sharing the product model.In order to facilitate the operating on the product data,STEP platfrom provides motheds to conveniently inquire,modify product data and reconstruct STEP file.Platform also provides SDAI interface and C built in functions.All that have been provided by STEP platform have made good conditions for the designing of preprocessor and postprocessor of STEP file,and make it easy to get the CAD/CAM/CAPP subsystem share integrated product data.