三维曲面造型部分获奖软件介绍

三维曲面造型部分获奖软件介绍超人ＣＡＤ／ＣＡＭ集成系统ＳｕｐｅｒＭａｎ（Ｖ３．０）中的三维曲面造型子系统一、概况起人ＣＡＤ／ＣＡＭ集成系统是南京航空航天大学在二十多年来技术积累的基础上，开发的微机ＣＡＤ／ＣＡＭ集成系统。该系统的发展大致经历了“五五”...     

基于特征的CAD／CAM信息集成方法

本文对基于特征的ＣＡＤ／ＣＡＭ信息集成方法所涉及的特征识别、特征造型、特征映射及数据交换等关键技术进行了研究和总结，并简要介绍了研制中的ＣＡＤ／ＣＡＭ集成系统的总体方案。     

基于特征的CAD／CAM信息集成方法

本文对基于特征的ＣＡＤ／ＣＡＭ信息集成方法所涉及的特征识别、特征造型、特征映射及数据交换等关键技术进行了研究和总结，并简要介绍了研制中的ＣＡＤ／ＣＡＭ集成系统的总体方案。     

CIMS环境中CAD／CAPP集成方法的研究与实践

本文对ＣＩＭＳ环境中ＣＡＤ／ＣＡＰＰ集成方法和原理及关键技术进行了论述和评价，并简要介绍了研制中的工程机械ＣＡＤ／ＣＡＰＰ集成系统总体方案。     

CAD／CAPP／CAM集成系统的IDEF方法建模技术

本文讨论了采用ＩＤＥＦ方法建立了ＣＩＭＳ环境下的ＣＡＤ／ＣＡＰＰ／ＣＡＭ集成系统的功能模型与信息模型的相关技术。针对ＣＡＤ／ＣＡＰＰ／ＣＡＭ系统集成的特点，结合实例，给出了相应的建模步骤，建模思路以及有效的建模过程管理方法。     

博士CAD／CAM集成系统──走向世界的中国工程软件

博士ＣＡＤ／ＣＡＭ集成系统──走向世界的中国工程软件在竞争激烈的中国ＣＡＤ市场，西安正直软件有限责任公司开发的博士ＣＡＤ／ＣＡＭ集成系统凭借雄厚的技术及经济实力、一流的技术支持和服务树起了国内自主版权ＣＡＤ／ＣＡＭ软件的大旗，被誉为软件界的“中华牌”...     

柔性编码系统在CAD／CAPP／CAM集成系统中的应用

本文着重介绍柔性编码系统的基本原理，结构和主要特点，以及在ＣＡＤ／ＣＡＰＰ／ＣＡＭ集成系统中的作用。     

博士CAD／CAM集成系统

博士ＣＡＤ／ＣＡＭ集成系统西安正直科技发展有限责任公司是一家专门从事ＣＡＤ／ＣＡＭ集成系统研制与开发的高新支术企业。其主导产品博士ＣＡＤ／ＣＡＭ系统被誉为软件界的＂中华牌＂。该系统已广泛应用于气车、兵器、宇航、船舶、机床、机械等数百家企业。本公司继Ｖ...     

CAD,CAM中存在问题及其发展趋势

本文对目前ＣＡＤ、ＣＡＭ中普遍存在的问题及其发展趋势作了综述，研制智能ＣＡＤ／ＣＡＭ集成系统是改善和解决当前ＣＡＤ、ＣＡＭ中普遍存在的问题的根本途径。     

一个CAD／CAPP／CAM集成系统

ＣＡＤ／ＣＡＰＰ／ＣＡＭ集成系统是ＣＩＭＳ系统的重要信息来源，影响整个ＣＩＭＳ水平，作者结合在钻井用牙轮钻头制造厂建立ＣＩＭＳ工程的实际，研究了ＣＡＤ／ＣＡＰＰ／ＣＡＭ系统的集成问题，本文介绍其主要功能和结构。     

协同开发环境中的CAD/CAM集成数据管理的实现

协同开发环境是虚拟企业高效运作的支撑平台,CAD/CAM集成系统是该环境中的重要子系统,迫切需要对CAD/CAM集成数据进行有效的管理和操作。文章讨论了协同开发环境中CAD/CAM集成数据的管理技术,并详细分析了CAD/CAM集成数据库的数据结构和数据集成。     

A proposal for CAD/CAM interface with expert systems

In the computer-integrated manufacturing (CIM) environment, the key technologies, CAD and CAM, should be fully integrated with high operability. It is claimed, however, that CAD and CAM have so far been developed independently. Although much effort has been made to integrate CAD and CAM, this reality is far from completion.

Therefore, to establish a CAD/CAM interface with higher integration, the concept of a computer-aided drafting procedure with expert systems has been proposed on the basis of analysis of the information explicitly and implicity described on the part drawing, and also of the required knowledge of the designer to produce the part drawing. The CAD/CAM interface proposed here is available for producing not only the part drawing but also the process plan for the corresponding part, by effectively utilizing the knowledge of the expert. A prototype CAD/CAM interface deals with axi-symmetrical rotational parts implemented on a workstation.     

CAD/CAM integrated system in collaborative development environment

For virtual enterprises to realize efficient operation in the 21st century, it is necessary to develop an environment that can support collaborative work of multi-disciplinary groups distributed in different places. CAD/CAM integrated system is an important subsystem in this environment. In this paper, the structure of CAD/CAM integrated system is presented, then, key technologies related to realize CAD/CAM integration are discussed in detail and finally main functions and an application case of CAD/CAM integrated system is introduced.     

CATC — A Computer Aided Tolerance Control system

Computer utilization in manufacturing systems is increasing at a rapid rate. Developments thus far have been disjointed. Much work needs to be done in the area of integrating computer aided design and computer aided manufacturing (CAD/CAM). Tolerance control is an important component in the integration of CAD and CAM. Selection of design tolerances affects the build-ability of a product. The selection of manufacturing processes and sequence of processes affects process tolerance stacking. Unexamined process tolerance stacking leads to scrap and rework. A computer aided tolerance control (CATC) system is presented in this paper. This system is based on the tolerance chart technique. The CATC system is interactive and uses computer graphics for information display. The system can be used for computer aided process planning (CAPP) and for CAD/CAM integration.     

STEP信息集成软件工具的设计和实现

ＳＴＥＰ是国际标准化组织ＩＳＯ正在组织开发的应用于计算机集成制造系统（ＣＩＭＳ）信息集成的产品数据表达与交换标准，ＳＴＥＰ不仅是一种规范，更是一种信息集成技术，本文以ＣＡＤ／ＣＡＰＰ／ＣＡＭ系统集成为背景，提出了ＳＴＥＰ信息集成支持工具ＥｘＴｒａ的设计和实现技术，该软件工具已成功且有效地应用于ＣＡＤ／ＣＡＰＰ／ＣＡＭ系统集成中。     

CAD与CAM系统集成研究与实现

介绍了CAD模型数据的检取技术和格式转换技术,描述了CAD/CAM的总体框架,并对实现该框架所涉及的内容及其实现技术进行了深入研究,同时给出了在Solidworks环境下所实现的CAD/CAM系统集成的实例。     

针对产品的CAD／CAM一体化技术

本文系统地介绍了一种基于ＣＡＤ工作站，利用Ｉ－ＤＥＡＳ软件实现的针对壳体类零件的ＣＡＤ／ＣＡＭ一体化技术。论述了利用ＰＥＡＲＬ数据库实现的从ＣＡＤ模型到ＣＡＰＰ之间信息的传输，分析了在ＣＡＤ与ＣＡＭ集成中创成式ＣＡＰＰ所起的关键作用，并介绍了利用ＧＮＣ图形辅助数控软件对加工过程的仿真以及机床文件的准备，最后系统能生成正确的数控指令。系统初步实现了ＣＡＤ／ＣＡＭ一体化。     

基于CAPP平台下的3C集成技术

介绍了CAPP平台下的3C集成技术的概念,分析了国内外CAD/CAPP/CAM应用现状,阐述了CAD/CAPP/CAM集成技术的技术原理,强调了CAPP平台下的3C集成技术与其他3C集成技术的区别,展望了该技术在科研、生产中的应用前景。     

A feasible approach to the integration of CAD and CAPP

Although current CAD systems are declared to be feature-based, in fact, the so-called feature is just a modeling macro or menu name such as Protrusion, Revolution, Cutout, Block, etc., instead of a design feature or manufacturing feature in accordance with engineering practice. Consequently, product model data insufficiency and incompatibility between varieties of application systems are still the major barriers to system integration, especially the integration of design and process planning. This paper proposes a practical solution for a bi-directional integration of CAD and CAPP on the platform of commercial CAD systems. The key techniques such as feature recognition and conversion, feature parameter and constraint extraction, feature tree reconstruction, technical information processing, process planning, automatic process drawing marking and 3D material stock CAD model generating are discussed. And the extracted features and their related technical information and knowledge are encapsulated together with the geometry-oriented CAD model to form an integrated product information model to facilitate effective integration with the downstream activities. The integrated CAD/CAPP system is implemented on a commercial CAD package, UGS/SolidEdge. A case study and industry implementation illustrate the feasibility of the approach proposed.     

面向特征的CAD集成系统交互接口的设计

本文从ＣＡＤ／ＣＡＭ集成思想出发,认真分析了传统ＣＡＤ系统在集成过程中存在的问题。提出了一个基于制造环境的ＣＡＤ系统设计模式,并基于此设计了面向特征,具有工艺信息反馈和限制的ＣＡＤ交互接口,为设计者提供了一种自然的,能反映所设计零件形状的可能加工方式和一定的加工工艺分析信息的交互界面,并具备了图示化等特点。