吉林化工学院本科毕业设计说明书解放牌汽车变速叉工艺规程及夹具设计Theliberationoflicensingautomobiletransmissionforkprocessandfixturedesign性质:□毕业设计□毕业论文教学院：机电工程学院系别：机械设计制造及其自动化学生学号：09410114学生姓名：关凯强专业班级：机自0901指导教师：谭丽辉职称：讲师起止日期：2013.3.1～2013.6.20吉林化工学院JilinInstituteofChemicalTechnology摘要此次毕业设是由谭丽辉老师亲自指导，设计一解放牌汽车配套变速箱，经过数个月的设计，基本完成此次设计的任务。此变速箱主要是变速叉的设计，采用铣端面、钻孔、铣拔叉内侧、铣拔叉两侧面、铣凸台上面、铣凸台侧面、铣槽等多种工序相结合的变速叉拔叉零件，本人经查阅相关书籍、资料以对此拔叉零件所用到的相关公式、数据做出了一个准确的依据。此零件的设计一共分为三章，和其他拔叉零件的设计一样，首先第一章是绪论对课题背景、意义、理论分析、国内外状况、课题研究主要问题作了介绍。第二章对零件进行了工艺分析，接着对工艺方案进行了比较，最终确定采用先铣拔叉拔爪后铣凸台的工艺方案，选择机床设备及工艺装备拔叉设计的计算。第三章是夹具设计的定位方式及元器件的选择、切削力和夹紧力的计算、定位误差的计算、液压缸的选择，然后是总结、参考文献。本人在设计过程中得到了其他同学的大力支持，并有谭老师的耐心指导，在此表示诚恳的感谢。由于本人水平有限，此次设计难免存在一些缺点和错误，恳请阅读者批评指正。关键词：变速叉；加工工艺；夹具设计AbstractThisgraduationdesignisbyTanLihuitheteacherpersonallyguide,designaJiefangautomobileaccessorygearbox,aftermonthsofdesign,completedthedesignofthetask.Thistransmissionisthemaintransmissionforkdesign,endmilling,drilling,millingthefork,theforktwosideinnermilling,milling,millinglugbossontheside,millingetc.combiningtheprocessesoftransmissionforkforkpartsby,Irefertotherelevantbooks,datafromthisforkpartsusedbytherelatedformula,datatomakeanaccuratebasis.Thisdesignisdividedintofourchapters,andtheotherforkpartsofthedesign,thefirstchapteristheintroductionofthebackground,significance,theoreticalanalysis,thesituationathomeandabroad,theresearchmainlyintroduce.Thesecondchapterofthepartsoftheprocessanalysis,andthentheprocessarecomparedandanalyzed,finallydeterminedbymillingforkpullclawaftermillingconvexprocessscheme,selectionofequipmentandmachinetoolingforkdesigncalculation.Thethirdchapteristhefixturedesignofthepositioningmethodandcomponentsselection,cuttingforceandclampingforcecalculation,thecalculationofthepositioningerror,theselectionofhydrauliccylinder.thensummarized,Ref.Iaminthedesignprocesstogettheotherclassmatestosupportenergetically,andTanteacher'spatientinstructions,toexpresssincerethanks.Becausemyselflevelislimited,thedesignwillinevitablyexistsomeshortcomingsandmistakes,pleasereadercriticism.Keywords:shiftingfork;processingtechnology;fixturedesign目录摘要.................................................................................................................................IAbstract..................................................................................................................................II第一章绪论........................................................................................................................11.1变速器变速叉的介绍..............................................................................................11.2变速器行业概况......................................................................................................21.3变速器行业面临挑战.......................................
