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镗床夹具设计[摘要]镗床发展的水平之高主要表现在产品设计理念的不断更新，体现了产品设计将装饰艺术与精细加工的完美结合；产品结构的不断创新，显示了镗床在向高速、高精、高效发展的同时，还向人性化、精细化制造的方向发展，而镗床夹具的发展也是齐头并进，毫不逊色。本论文通过对镗床的加工方法，工作原理的研究分析，选定了箱体零件设计了一个镗床夹具，并给出了结构方案。该夹具设计有对刀装置。既能够实现工件的准确装夹，还可以准确对刀。夹紧方式采用了液压夹紧。夹紧快速简洁，夹紧力的控制和装夹定位准确，通过对刀装置的准确对刀，最终保证了工件的加工精度。[关键词]镗床夹具对刀箱体JigsforBoringMachineDesignAbstract:Boringdevelopmentofahighstandardofperformanceinthemajorproductdesignconceptsiscontinuouslyupdated.reflecttheproductdesignofdecorativeartsandfineprocessingtheperfectcombination;productmixofconstantinnovationandshowstheboringmachinetothehigh-speed,high-precision,high-efficiencydevelopment,itisalsotohumanity,fineManufacturingdirection,JigBoringMachineandtheparalleldevelopmentisnotoutofstep.Inthispaper,throughtheboringmachineprocessingmethod,principleofresearchandanalysisselectedpartsoftheboxdesignajigboringmachine,andgivesthestructureoftheprogram.Thefixtureisdesignedtoknifedevice.Bothtoachievetheexactworkpiecefixturing,butalsoaccuraterightknife.Waystointensifytheuseofhydraulicclamping.Clampingrapidconcise,clampingforcecontrolandaccuratepositioningfixture,therightknifedevicesaccuraterightknife,theultimateguaranteeofaworkpiecemachiningaccuracy.Keywords:BoringMachineJigsRightknifeBoxI目录序言...........................................................................................................11绪论........................................................................................................31.1镗床的起源、功能及基本特点.................................................................31.2镗床的分类.................................................................................................41.3镗床的发展趋势.........................................................................................41.4本课题的研究目标，内容及意义.............................................................61.4.1本课题的研究目标..............................................................................61.4.2本课题的研究内容..............................................................................61.4.3本课题的研究意义..............................................................................72夹具设计及其概论..................................................................................82.1概论.............................................................................................................82.2夹具发展简史.............................................................................................82.2.1夹具发展简史及其分类......................................................................82.2.2夹具的基本功能描述..........................................................................92.3工件的装夹方式.......................................................................................102.4夹具的组成及夹具体的设计...................................................................112.4.1夹具的组成........................................................................................112.4.2夹具体的设计....................................................................................122.4.3其它装置或元件...............................................................................142.5夹具设计中的定位...............................................................................152.5.1定位基准选取....................................................................................152.5.2工件在空间自由度的分析................................................................162.5.3工件定位方式的确定........................................................................172.5.4现有定位规划方法介绍....................................................................182.6夹具中夹紧方式的设计...........................................................................192.6.1夹紧设计的基本要求........................................................................202.6.2夹紧力方向、位置和大小的确定....................................................212.7现有组合夹具夹紧规划方法介绍...........................................................242.7.1确定工件的夹紧区域........................................................................24II2.7.2确定与可行夹紧区域对应的安装固定区域....................................242.8夹具的定位误差分析及夹紧力的计算...................................................252.8.1定位销高度的计算............................................................................252.8.2定位误差计算....................................................................................262.8.3工件以一面及两圆孔定位的夹紧力计算........................................272.8.4液压-压板组合夹紧计算..................................................................282.9小结...........................................................................................................293夹具中对刀的设计..............................................................................303.1对刀概述...................................................................................................303.2工件与主轴的同轴找正..........................................................................303.3对刀...........................................................................................................313.4对刀误差的确定.......................................................................................334液压系统的设计....................