制订LH520ATV后HUB工序卡及第一道机加工夹具设计毕业论文.doc -- 7 元

南京大学毕业设计说明书（论文）作者学号系部机械工程学院专业机械工程及自动化题目制订LH520ATV后HUB工序卡及第一道机加工夹具设计毕业设计说明书（论文）中文摘要LH520ATV沙滩车产品，主要用于各种不规则路况及地形的代步及小批运输作业。本文对LH520ATV沙滩车后HUB进行了生产纲领、生产节拍的计算、零件的作用、提出了制定加工工序卡注意点、零件的工艺性分析、工艺规程的设计、确定毛坯的制造形式、基面的选择、制定工艺路线、机械加工中每一道工步的机械加工余量、工序尺寸及毛坯尺寸的确定编写、确定切削用量及基本工时、论述了专用夹具设计的基本要求及第一道机加工专用夹具设计、夹具在设计时遇到的问题。关键词毛坯工艺规程夹具设计TitleAfterDrawingUpLH520ATV,HUBTravelChartandFirstMachiningJigDesignAbstractLH520ATVatvproductdevelopmentbytheravine,mainlyusedforvariousirregulartopographyandtheroadcarandsmallbatchtransportationoperations.ThisHUBofpaperLH520ATVbeachcarfinishedtheproductionprogram,onthecalculationandpartsproductionbeats,putsforwardtheprocesscardforcarefulanalysisoftechnology,partsofthedesignprocedure,anddeterminetheblankofmanufacturing,thechoiceandformsformachiningprocessroute,ineverystepofmachiningallowanceworkproceduresizes,andthesizeofSemifinishedmaterials,determinethecuttingdosagesandthebasicworkhours,discussesthebasicrequirementsforaspecialmachiningjigs,thedesignofthefirstMachiningJigDesigninandtheproblemsofjigsdesign.KeywordsSemifinishedmaterialsTechnologicalprocessJigdesign目录1引言...............................................................12生产纲领...........................................................22.1计算生产纲领决定生产类型........................................22.2计算生产节拍....................................................33零件的分析.........................................................43.1零件的作用......................................................43.2零件的工艺分析..................................................44工艺规程设计.......................................................64.1确定毛坯的制造形式..............................................64.2基面的选择......................................................84.3制订工艺路线...................................................104.4机械加工余量、工序尺寸及毛坯尺寸的确定.........................124.5确定切削用量及基本工时.........................................155夹具的设计........................................................365.1问题的提出.....................................................395.2夹具设计.......................................................40结束语...............................................................43致谢.................................................................44参考文献.............................................................45附录1...............................................................46