汽车差速器壳加工工艺及夹具设计

摘要随着社会的发展，汽车在生产和生活中的越来越广泛，差速器是汽车中的重要部件，其壳体的结构及加工精度直接影响差速器的正常工作，因此研究差速器的加工方法和工艺的编制是十分必要和有意义的。本次设计主要内容有：差速器的工作原理结构分析，差速器壳体的工艺编制，夹具的设计及加工中对定位基准的选择，工序和工装设计中切削用量，夹紧力的计算等。机床夹具的种类很多，其中，使用范围最广的通用夹具，规格尺寸多已标准化，并且有专业的工厂进行生产。而广泛用于批量生产，专为某工件加工工序服务的专用夹具，则需要各制造厂根据工件加工工艺自行设计制造。本设计的主要内容是设计钻床夹具和铣床夹具，需要对零件上Φ22的孔进行铣削加工端面的铣削加工。由于某些原因，没有上传完整的毕业设计（完整的应包括毕业设计说明书、相关图纸CAD/PROE、中英文文献及翻译等），此文档也稍微删除了一部分内容（目录及某些关键内容）如需要的朋友，请联系我的叩扣:二二壹五八玖一壹五一关键词：差速器，壳体，工艺规程，夹具设计AbstractAlongwithsocialdevelopmentmotorvehicleproductionandlifeinanincreasinglywidedifferentialdeviceisanimportantvehiclecomponentsanditsinteriorstructureandprocessingprecisiondifferentialdevicedirectlyaffectthenormalworkstudydifferentialdevicecaseprocessingmethodsandtechniquesofpreparationisnecessaryandmeaningful.Thecurrentdesignofthemainelements:differentialdevicestructuresoperatingprinciplesofanalysisdifferentialdevicecasepreparationprocessesdesignandsmooth-borejigforpositioningbaselineprocessingoptionssmooth-boredesignprocessessuitscuttingconsumptionincreasedcomputingpower.Machinetoolfixtureofmanykinds,amongthem,themostwidelyusedcommonfixture,sizespecificationshavebeenstandardized,andaprofessionalproductionplant.Whilewidelyusedinbatchproduction,designedforacertainworkpieceprocessingservicesforthefixture,itneedseachfactoryaccordingtoworkpiecemachiningtechnologytodesignandmanufacture.Themaincontentsofthisdesignisthedesignofdrillingjigandmillingfixture,theneedforpartsthan22holemillingfacemilling.KeyWords:differentialdevice，case，technologicalprocess，jigdesign致谢目录摘要........................................................................................................................................1Abstract.......................................................................................................................................1目录........................................................................................................................................2第1章绪论............................................................................................................................41.1课题的背景及意义.....................................................................................................41.2差速器的主要分类.....................................................................................................51.2.1开式差速器......................................................................................................51.2.2限滑差速器......................................................................................................51.3差速器结构.................................................................................................................61.3论文主要内容..............................................................................................................6第2章零件的分析..................................................................................................................62.1零件的作用.................................................................................................................62.2零件的工艺分析.........................................................................................................7第3章工艺规程设计..............................................................................................................83.1基准面的选择.............................................................................................................83.1.1粗基准的选择..................................................................................................93.1.2精基准的选择..................................................................................................93.2毛坯的制造形式.........................................................................................................93.3制订工艺路线...........................................................................................................93.3.1.工艺线路方案一.....................................................................................................93.3.2工艺路线方案二....................................................................................................103.3.3.工艺方案的比较与分析.......................................................................................103.4机械加工余量、工序尺寸及毛坯尺寸的确定.......................................................113.4.1外圆表面................................................................................................................113.5内圆表面...................................................................................................................133.4.3端面......................................................................................................................143.4.4凸台......................................................................................................................153.4.5孔类......................................................................................................................15第4章确定差速器切削用量及基本工时..........................................................................154.1工序1铣φ200外圆右端面（大头）。................................