并行工程环境下基于PDM和CAPP系统信息集成技术

PDM、CAx技术在现代制造领域中得到了迅速的发展.本文提出了并行工程环境下以产品结构树为核心面向对象的工艺信息模型,阐述了基于PDM的并行工艺设计模式及CAPP系统信息集成技术.

面向并行工程的自动工艺过程设计

ＣＡＰＰ作为产品开发过程的重要环节，在并行工程环境下具有新的内容。根据这一思想构造了面向并行工程的自动工艺过程设计系统（ＣＯＰＰ）的基本框架。ＣＯＰＰ的工作进程受产品开发过程动态模型控制，与上下游功能模块进行信息和功能集成，并根据车间层资源的约束生成柔性的工艺路线。

面向并行工程的CAD系统研究

本文在CIMS环境下,以非回转体零件特征造型的基础上,其非回转体零件——箱体为对象,应用并行工程技术,开发基于特征的三维实体造型系统。在生成工程图纸的同时更有效地与后续工序CAPP、CAM进行信息集成。提供了一个更高层次的二次开发系统。

Concurrent Engineering Oriented CAx/DFx Information Integration

The information integration, especially in CAD/CAPP/CAM, is a basis for realizing the integrated and concurrent product development in Concurrent Engineering (CE) environment. The integration technology based on STEP application protocol gives an effective way for the CAx/DFx information integration. This paper discusses the characteristics of concurrent product development, analyzes the methodology and technology of STEP, proposes an information integration approach based on STEP AP214, and presents the strategy of product data integration and an integration system implementation architecture. The integration technology based on STEP application protocol and the ST Developer tools is realized in a prototype system to support product data integration between CAD and its follow up systems through STEP physical file and STEP information exchange interface.