组合夹具设计说明书

课程论文题 目： 铣床组合夹具设计学生姓名： 学 院： 班 级: 指导老师： 2013 年 7 月 12 日摘 要 本论文是结合目前实际生产中，常常发现仅用通用夹具不能满足生产要求，用通用夹具装夹工件生产效率低劳动强大,加工质量不高,而且往往需要增加划线工序，而专门设计两种夹具：铣床夹具和钻床夹具，主要包括夹具的定位方案,夹紧方案、对刀方案，夹具体与定位键的设计及加工精度等方面的分析。本次设计为铣槽用的夹具，它针对零件的结构特点，采纳了组合式的定位方案，以支承板、圆柱销等作为定位元件.使工件安装方便，且能保证加工精度。压紧装置以杠杆原理为核心,采纳压板压紧工件,左侧压板压紧之后右侧自动压紧。其具有夹紧力装置,具备现代机床夹具所要求的高效化和精密化的特点，可以有效的减少工件加工的基本时间和辅助时间，大大提高了劳动生产力,从而可以有效地减轻工人的劳动强度和增加劳动效率。铣床夹具具有提高生产率、扩大机床工艺范围、减轻工人劳动强度以及保证生产安全等特点。因此，对夹具知识的认识和学习以及设计新式的适合实际生产的夹具在今日显得尤为重要起来.关键词：铣床夹具,定位，夹紧AbstractThe present paper is combing the actual production at present, which is that either using universal fixture cannot meet only production requirements or using 学校代码： 10128学 号： universal fixture clamping work—piece to product is poor efficiency and powerful labor and not high processing quality or often it need to increase crossed process, to specially design two fixture： milling fixture and drilling fixture， mainly including schemes of fixture positioning， clamping and cutter， the design of the concrete and the TAB folder and the analysis of machining precision et al.The milling fixture, mainly is used to process dial the fork parts milling flutes.It is aimed at connecting rod of the structural features and adopted the ”one-two" targeted programmes to ensure that the workpiece be processed on the location accuracy, more convenient installation of the workpiece, assisted by a s...