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1、汽车后桥壳工艺规程毕业设计摘要汽车后桥壳是汽车的重要组成部分,它与主减速器、差速器和车轮传动装置组成驱动桥。驱动桥处于动力传动系的末端,其机动功能是增大由传动轴或变速器传来的转矩,并将动力合理的分配给左、右驱动轮,另外驱动桥桥壳是汽车上重要的承载件和传力件。驱动桥的桥壳不仅支承汽车重量,将载荷传递给车轮,而且还承受由驱动车轮传递过来的牵引力、制动力、侧向力、垂向力的反力以及反力矩,并经悬架传给车架或车身。在汽车行驶过程中,由于道路条件的千变万化,桥壳受到车轮与地面间产生的冲击载荷的影响,可能引起桥壳变形或折断。因此,驱动桥壳应具有足够的强度、刚度和良好的动态特性,合理地设计
2、制造驱动桥壳是提高汽车行驶稳定性的重要措施,汽车后桥壳广泛应用于各种车辆当中。所设计的后桥壳夹具可广泛应用于卡车的后桥壳加工中,后桥壳起保护和支撑的作用,其主要加工表面为端面外圆、法兰平面、弹簧座平面、以及内孔等。本次设计的内容主要包括机械加工工艺规程、夹具的设计。结合本次设计零件的特点,在设计中完成工艺规程一套,夹具一套。铣床夹具,采用手动夹紧。通过对汽车后桥壳夹具的学习和设计,可以更好的学习并掌握现代夹具设计与机械设计的全面知识和技能。关键词:汽车后桥;工艺规程;夹具AbstractAutomobilerearbridgeisanimportantpartoftheca
3、r,withthemainreducer,differentialandintegraldriveaxlewheeltransmissiondevice.Drivebridgeattheendofpowertransmissionlines,themotorfunctionisincreasedbytransmissionorgearboxtransmissionoftorque,andpowerdistributiontotheleftandrightdrivingwheel,andtheautomobiledriveaxlehousingistheimportantlo
4、adbearingandpowertransmission.Driveaxlehousingnotonlysupportstheweightofthecar,willloadtothewheel,andalsobearthedrivewheelspassoverthetractionforce,brakingforce,lateralforce,verticalforcereactionforceandtorque,andthesuspensiontotheframeorbody.Intheprocessofmovingvehicle,themyriadsofchanges
5、duetoroadconditions,thebridgeshellunderwheelandthegroundproduceseffectofimpactload,maycausetheaxlecasingdeformationorbreaking.Therefore,driveaxlehousingshouldhaveenoughstrength,stiffnessandgooddynamiccharacteristics,reasonabledesignandmanufactureofdriveaxlehousingistheimportantmeasuretoimp
6、rovevehiclestability,autorearbridgeshelliswidelyusedinvariousvehicles.Thedesignofrearaxlehousingclampcanbewidelyusedintruckrearaxleshellprocessing,rearaxlehousingforprotectionandsupportrole,itsmainworkingsurfacetofacecircular,flatflange,springseat,andtheinnerholeoftheplane.Thisdesignconten
7、tmainlyincludestheprocess,fixturedesign.Combinedwiththedesignofpartsofthecharacteristics,inthedesignofasetofcompleteprocedure,asetofclamps.Millingfixture,manuallyclamping.Theautomobilerearaxlehousingclampstudyanddesign,canbeabetterlearningandmasteryofmoderndes
