减速器箱体箱盖加工工艺及夹具设计

.攀枝花学院本科毕业设计减速器箱体箱盖加工工艺及其工装设计学生姓名：学生学号：院（系）：年级专业:指导教师：助理指导教师：二〇一六年五月攀枝花学院本科毕业设计摘要I摘要通过该型减速器箱体箱盖零件进行了结构分析，结合实际的加工装备对其进行工艺设计，确定了零件的毛坯材料、尺寸、定位基准、加工内容和工艺流程，拟定了加工工艺路线。对零件的公差、加工余量和切削用量及基本工时定额等工艺参数进行了选择与计算，完成了对箱体箱盖零件的加工工艺设计，详细编制了工艺规程卡。针对铣减速器箱体结合面和镗减速器轴承孔两工序，进行了切削力、夹紧力、夹具的定位误差和精度的分析与计算，完成了两道工序的工装夹具设计，绘制了铣减速器箱盖结合面夹具和镗减速器轴承孔夹具装配图与部分零件图。经校核验算所设计夹具满足要求。关键词：主减速器箱盖；主减速器箱体；工艺设计；工装设计攀枝花学院本科毕业设计ABSTRACTIIABSTRACTAccordingtotherequestofthetopic,HaveanalysisedtheWD-400miningmainreducerboxcoverpartsofthestructure,determinedthepartsoftheblanksize,thelocatingdatum,theprocessingcontentandprocessingcombinedwiththeactualprocessingequipmentandprocessingrouteisworkedout.Completedthecalculationandselectionofthetolerenceofparts,machiningallowance,cuttingparameterandbasicman-hourquotaofprocessparameters,completedtheprocessingtechnologydesignofcoverpartsaswellasthetheprocesscardindetaile.Aimatthetwoprocessofmillingandboringthereducerboxcombinedsurfacebearinghole,andfinishedtheanalysisandcalculationofthecuttingforce,clampingforce,thefixturepositioningerrorandprecision,completedthedesignoftoolingfixture,finishedtheassemblingdrawingofthetoolingfixtureofthemillingandboringreducerboxcombinedsurfaceandcomlietedsomeimportantpartdrawingatthesametime.thefixturedesignmeetstherequirementsafterchecking.KeywordsThemainreducerboxcover，processdesign，equipmentdesign，mechanicaldesign攀枝花学院本科毕业设计目录III目录摘要............................................................................................................................................................IABSTRACT......................................................................................................................................................II1绪论.........................................................................................................................................................11.1课题研究意义..................................................................................................................................11.2箱体箱盖的国内外发展现状以及发展趋势..................................................................................11.3研究内容以及研究方法...................................................................................................................32零件的结构分析与工艺规程的制定..............................................................................................42.1箱体箱盖的结构工艺性分析..........................................................................................................42.2箱体箱盖的功能..............................................................................................................................52.3箱体箱盖生产纲领及毛坯的确定..................................................................................................52.4定位基准的选取...............................................................................................................................62.5机床与工艺装备的选用...................................................................................................................72.5.1机床的选择............................................................................................................................72.6工艺路线的拟定...............................................................................................................................72.6.1箱体工艺路线的拟定...........................................................................................................82.6.2箱盖工艺路线的拟定...........................................................................................................112.7工艺参数的计算与分析.................................................................................................................143铣箱体结合面夹具的设计..............................................................................................................303.1问题的提出....................................................................................................................................303.2确定定位方案以及定位元件.........................................................................................................303.3确定夹紧方案以及夹紧元件.........................................................................................................313.4确定铣削夹紧力.............................................................................................................................334镗轴承孔夹具的设计.......................................................................................................................354.1问题的提出....................................................................................................................................354.2定位方案与定位元件的设计........................................................................................................354.3夹紧方案及夹紧元件的选择........................................................................................................374.4对刀块和导向元件设计................................................................................................................374.5切削力和夹紧力计算...........................................................................