气门摇臂轴支座的机械加工工艺及夹具设计摘要机械加工行业作为一个传统而富有活力的行业，近些年取得了突飞猛进的发展，在新经济时代，行业呈现了新的发展趋势，由此对其它的质量，性能要求有了新的变化。现在机械加工行业发生着结构性变化，工艺工装的设计与改良已成为企业生存和发展的必要条件，工艺工装的设计与改良将直接影响加工产品的质量与性能。首先介绍了气门摇臂轴支座的作用和工艺分析，其次确定毛坯尺寸，然后进行了工艺规程设计，最后进行夹具设计。通过对气门摇臂轴支座进行研究，来进行加工工艺和夹具设计，气门摇臂轴支座零件为铸件，具有体积小，零件结构简单的特点，由于面比孔容易加工，所以在制定工艺规程时，就采用先加工面，再以面为基准来加工孔的方法，其中各工序夹具都采用专用夹具，其机构设计简单，方便且能满足要求。关键词：气门摇臂轴支座；工艺分析；工艺规程设计；夹具设计AbstractMachiningindustry,asatraditionalandvibrantindustry,hasbeenrapidlydevelopedforafewpastdecades.Intheneweconomicarea,theindustrypresentedanewdevelopmenttrend,andthetrendsalsochangesthequalityandtheperformanceoftheproductioninsomenewabstracts.Machiningindustryisnowtakingplaceinstructuralchanges,processdesignandimprovementofequipmenthasbecomethenecessaryconditionsoftheenterprisesurvivalanddevelopment,processequipmentdesignandimprovedproductsdirectlyaffectthequalityandperformance.Thisarticleintroducestheroleandprocessanalysisofthevalverockerarmbearingsupport,followedbydeterminingblanksize,andthenproceedtoorderthedesignprocess,thefinalfixturedesign.WhatwillbedesignedisThemachiningprocessandfixturedesignoftheValveRockerArmBearingsupport,whichhasthecharacteristicsofthreeabstract.itscomponentsforcastings,withasmallsize,simplestructureandthecharacteristicsofparts,becausethesurfaceiseasierthantheeasyprocessing,pointoforderinthedevelopmentprocess,thesurfaceonthefirstprocessing,andthentosurfaceasabenchmarktootherprocessing,includingtheprocessesusedspecialfixture,anditsdesignissimple,convenientandcanmeettherequirements.Keywords:Valverockerarmbearingsupport;Processanalysis；Processdesign；Fixturedesign目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc326939642"摘要PAGEREF_Toc326939642\hIHYPERLINK\l"_Toc326939643"AbstractPAGEREF_Toc326939643\hIIHYPERLINK\l"_Toc326939644"第1章绪论PAGEREF_Toc326939644\h2HYPERLINK\l"_Toc326939645"1.1本设计的内容及意义PAGEREF_Toc326939645\h2HYPERLINK\l"_Toc326939646"1.1.1课题设计的意义PAGEREF_Toc326939646\h2HYPERLINK\l"_Toc326939647"1.1.2设计内容