毕业设计：基于特征尺寸驱动的夹具设计.docVIP

成都理工大学毕业设计（论文） PAGE  第  PAGE 50 页 基于特征尺寸驱动的夹具设计 作者姓名：俄克虎 专业班级：机械工程及自动化 2005060404班 指导教师：龚迪琛 摘 要 本毕业设计的主要任务是设计连杆小头端两个斜孔的钻床夹具，并用Pro/ENGINEER对该夹具进行参数化设计。本文首先分析了连杆的工作原理和主要的加工工艺过程，然后对加工难度较高的两斜孔设计专用钻床夹具。在这些分析和计算的基础上，将夹具的每个零部件在Pro/ENGINEER软件下生成实体。在参数化部分，本文详细介绍了参数化设计的关键技术，包括基于族表的标准件插入技术、运用Pro/Program对通用件和装配体进行编程设计，最后以开口快换垫圈设计系统为例对二次开发插件Pro/Tollkit做了一定的介绍。通过对夹具的参数化设计，体现了特征尺寸驱动夹具的柔性化，加快了Pro/ENGINEER下夹具的设计和装配速度，从而在整体上提高了夹具设计的效率。 关键词：夹具设计；参数化；族表；Pro/Program Abstract In this dissertation a drill press grip with two inclined holes on its small telos is designed,and to be further studied,we use Pro/Engineer to optimize the parameters.In the front of the article,we first analyse the operational principle of connecting rod and the main technics for manufacture.Then the main job is designing a special used drill press grip for the difficult manufactured two inclined holes.Based on the analyse and calculation,each accessory is switched into esse by Pro/Engineer.In the optimizing part,it detailed describe the pivotal technology for the parameterization design including the standard parts insert technology based on clan list、programming for the interchangeable parts with Pro/Engineer and so on.In the end of the article, quadratic equation for Pro/Tollkit is introduced by the design of placket gasket for example. It give expression to the flexibility of dimension drived grip by the parameter design of grip,in the mean time it quicken the speed of grip design and assemblage by Pro/Engneer.As a result,the efficiency of grip design is advanced. Keywords: Fixture design; parameter; Family Table; Pro/Program; 目 录  TOC \o 1-3 \h \z \u   TOC \o 1-3 \h \z \u  HYPERLINK \l _Toc231243536 基于特征尺寸驱动的夹具设计  PAGEREF _Toc231243536 \h 1  HYPERLINK \l _Toc231243537 第1章 前 言  PAGEREF _Toc231243537 \h 3  HYPERLINK \l _Toc231243538 1.1 Pro/ENGINEER Wildfire3.0 简介  PAGEREF _Toc231243538 \h 3  HYPERLINK \l _Toc231243539 1.2 研究本课题的目的及意义  PAGEREF _Toc2312