基于So1idworks专用夹具通用件库的开发及应用.docVIP

毕业论文 基于 So1idworks专用夹具通用件库的开发及应用 摘要 夹具在机械加工中起着重要的作用，它直接影响着机械加工的质量、生产效 率和成本。要加工结构和尺寸都比较特殊的工件就必须设计专用夹具。在产品相 对稳定、批量较大的生产中，采用专用夹具可获得较高的生产率和加工精度。随 着现代多品种、中小批量生产的发展，传统的夹具设计方式己成为企业中产品快 速上市的瓶颈，企业迫切需要提高夹具设计的效率。为构建一个能支持产品快速 制造的生产准备系统，夹具设计要从全局自动化的高度进行变革。计算机辅助夹 具设计正是为了适应这一要求而产生的，而且已经成为国际上竞相研究的热点。 本文结合国内外机床夹具设计的现状，广泛研究了国内外CAFD系统，针对国内制造业中存在的问题，以实用性、高效性为指导思想，以建立机床夹具通用件库为切入点，提出了设计专用夹具CAD 系统（(Computer Aided Special Fixture Design，CASFD)的新观点，并付诸实现。 通过调查、比较和分析各类CAD软件在国内的应用现状，从开发的难易程 度、可移植性、易维护性等方面考虑，SolidWorks是一种非常优秀的三维机械设计软件，但是它缺少国家标准零件库，为机械设计工作带来了不便。VB是一种简单易学，而且功能强大的高级编程语言，Access是一种容易使用，而且功能强大的数据库管理系统。SolidWorks提供了基于OLE自动化技术的API函数，可以使用VB为它进行二次开发Based?So1idworksGeneral?Parts Library for?special fixtures?and Application?Development ABSTRACT Fixture is Playing a very important role in machining，which influence the quality of machining，Production efficiency and cost direetly.SPecial fixture must be designed when workpiece with complex strueture and size is proeessed.With the development of modern multi-variety and small batch production， traditional fixture design has become the bottleneck of rapid Production coming-into-the-market.So enterprises cry for promoting the effieieney of designing fixture.In order to build a production preparation system supporting rapid manufacturing of production，fixture design must be reformed based on global automation. CAFD is generated for adapting to the requirement and has beeome the focus of intemational study. Through investigating，comparing，analyzing the variable CAD software and thinking about the degree of difficulty，transportability and maintainability. The SolidWorks is a real fair 3D machine design software, But it be in defect of the Lib of the national standard parts, that works to bring for machine design very inconvenient. VB is a easily study, and powerful computer high class language, Access is an easy usage, and powerful DBMS. The SolidWorks provided mass API functions base the OLE Automation technique, Can be