第三章工艺规程设计PAGE\*MERGEFORMAT2XXX学校气门摇臂轴支座加工工艺及夹具设计所在学院专业班级姓名学号指导老师2016年月日PAGE\*MERGEFORMAT0PAGE\*MERGEFORMAT1摘要气门摇臂支座结构简单，制造方便，具有连接牢靠、耐压能力高。我国正处于经济发展的关键时期，制造技术是我们的薄弱环节，加工还是比较低效耗能。夹具系统是制造系统非常重要的组成部分，要求加工对象及安装对象迅速、准确地定位和固定。加工过程中夹具起到举足轻重作用，夹具能提高生产效率、保证加工精度、减轻劳动强度等。本文主要围绕气门摇臂支座的数控加工及主要工序工装设计为中心，介绍了气门摇臂轴支座的作用，对气门摇臂支座进行加工工艺分析，确定毛坯尺寸，根据工艺对零件加工设计及夹具设计方案进行分析和选择。选定方案后确定夹具夹紧力及定位方式，最后完成夹具总体设计。关键词：气门摇臂支座，加工工艺，夹具设计PAGE\*MERGEFORMAT2ABSTRACTValverockerarmbearinghassimplestructure,easytomanufacture,hasasecureconnection,highcompressioncapacity.Ourcountryisinacriticalperiodofeconomicdevelopment,themanufacturingtechnologyisourweaklinks,processingorineffectiveenergyconsumption.Fixturesystemisaveryimportantpartofmanufacturingsystem,processingobjectandtheobjectquicklyandaccuratelypositioningandfixedinstallation.Fixtureplaysimportantroleintheprocessing,fixturecanimproveproductionefficiency,ensurethemachiningaccuracy,reducelaborintensity,etc.hisarticlemainlyaroundthevalverockerarmbearingofncmachiningandmainprocessequipmentdesignasthecenter,thispaperintroducesthevalverockerarmshaftbearing,theeffectofprocessanalysiswascarriedoutonthevalverockerarmbearing,determinetheblankdimensions,accordingtotheprocessanalysisofpartsprocessingdesignandfixturedesignandchoice.Selectedsolutionaftercertainfixtureclampingforceandlocalizationway,finallycompletethefixturedesignasawhole.Keywords：valverockerarmbearing,processingtechnologyandfixturedesign目录TOC\o"1-3"\h\z\uHYPERLINK\l_Toc24295摘要PAGEREF_Toc242951HYPERLINK\l_Toc8632ABSTRACTPAGEREF_Toc86322HYPERLINK\l_Toc26582目录PAGEREF_Toc265823HYPERLINK\l_Toc120281前言PAGEREF_Toc12028IHYPERLINK\l_Toc321171.1课题来源及意义PAGEREF_Toc32117IHYPERLINK\l_Toc53671.2论文主要内容PAGEREF_Toc5367IHYPERLINK\l_Toc147502零件的分析PAGEREF_Toc147501HYPERLINK\l_Toc282462.1零件的作用PAGEREF_Toc282461HYPERLINK\l_Toc316352.2零件的工艺分析PAGEREF_Toc316351HYPERLINK\l_Toc223643工艺规程设计PAGERE