基于轻量化三维模型的CAD/CAPP/CNC系统集成技术研究  

Exploring a CAD/CAPP/CNC Computer Integrated Manufacturing System Based on Lightweight 3D Model

作　　者：李洲洋[1] 田锡天[1] 耿俊浩[1] 田富君[1] 

机构地区：[1]西北工业大学机电学院,陕西西安710072

出　　处：《西北工业大学学报》2011年第4期503-508,共6页Journal of Northwestern Polytechnical University

基　　金：国家863计划(2007AA040503)资助

摘　　要：针对CAD、CAPP、CAM及CNC系统间共享和交换三维模型信息瓶颈问题,在综合分析各系统的不同功能及对三维模型信息需求的基础上,依据轻量化三维模型标准,建立了基于轻量化三维模型的系统集成信息模型,并在此基础上构建了基于轻量化三维模型的CAD/CAPP/CNC集成系统,实现了各系统间共享和交换三维模型信息的目的。对系统集成信息模型、基于轻量化三维模型的制造特征转换等关键技术进行了详细的研究,并通过实例验证了方法的可行性和有效性。Aim. It is difficult to exchange and share 3D model information among CAD, CAPP, CAM and CNC systems. To solve this problem, under the support of the P. R. China National High-Tech R＆D Program, we put forward a new approach. Sections 1, 2 and 3 of the full paper explain the results of our exploration. The core of section 1 is the establishment of the model of a CAD/CAPP/CNC Computer integrated manufacturing system with lightweight 3D model to manage the information on product manufacturing, whose architecture and functions are given in Fig. 1. The core of section 2 is the analysis of each system＇ s functions of product manufacturing and data flow and then the establishment of the integrated information model with the lightweight 3 D model. To extract manufacturing features from the design features in the lightweight 3D model, section 3 develops a feature extraction method that uses feature representation and feature mapping; to verify the effectiveness and feasibility of our integrated system, we use the Visual Studio 2005 to develop a 3D feature extraction prototype system, whose interface is shown in Fig. 7 ; the analysis of the feature extraction prototype system shows that our computer integrated manufacturing system can effectively exchange and share the 3D model information among CAD, CAPP and CNC systems.

关 键 词：计算机输助设计 计算机辅助制造 计算机集成制造 特征提取 计算机数字控制 计算机辅助工艺设计 模型 轻量化三维模型 

分 类 号：TH164[机械工程—机械制造及自动化]