制訂LH520ATV后HUB工序卡及第一道機(jī)加工夾具設(shè)計(jì)畢業(yè)論文.doc

南京大學(xué)畢業(yè)設(shè)計(jì)說明書（論文）作者:學(xué)號(hào)：系部:機(jī)械工程學(xué)院專業(yè):機(jī)械工程及自動(dòng)化題目:制訂LH520ATV后HUB工序卡及第一道機(jī)加工夾具設(shè)計(jì)畢業(yè)設(shè)計(jì)說明書（論文）中文摘要LH520ATV沙灘車產(chǎn)品，主要用于各種不規(guī)則路況及地形的代步及小批運(yùn)輸作業(yè)。本文對(duì)LH520ATV沙灘車后HUB進(jìn)行了生產(chǎn)綱領(lǐng)、生產(chǎn)節(jié)拍的計(jì)算、零件的作用、提出了制定加工工序卡注意點(diǎn)、零件的工藝性分析、工藝規(guī)程的設(shè)計(jì)、確定毛坯的制造形式、基面的選擇、制定工藝路線、機(jī)械加工中每一道工步的機(jī)械加工余量、工序尺寸及毛坯尺寸的確定編寫、確定切削用量及基本工時(shí)、論述了專用夾具設(shè)計(jì)的基本要求及第一道機(jī)加工專用夾具設(shè)計(jì)、夾具在設(shè)計(jì)時(shí)遇到的問題。關(guān)鍵詞毛坯工藝規(guī)程夾具設(shè)計(jì)TitleAfterDrawingUpLH520ATV,HUBTravelChartandFirstMachiningJigDesignAbstractLH520ATVatvproductdevelopmentbytheravine,mainlyusedforvariousirregulartopographyandtheroadcarandsmallbatchtransportationoperations.ThisHUBofpaperLH520ATVbeachcarfinishedtheproductionprogram,onthecalculationandpartsproductionbeats,putsforwardtheprocesscardforcarefulanalysisoftechnology,partsofthedesignprocedure,anddeterminetheblankofmanufacturing,thechoiceandformsformachiningprocessroute,ineverystepofmachiningallowanceworkproceduresizes,andthesizeofSemifinishedmaterials,determinethecuttingdosagesandthebasicworkhours,discussesthebasicrequirementsforaspecialmachiningjigs,thedesignofthefirstMachiningJigDesigninandtheproblemsofjigsdesign.KeywordsSemifinishedmaterialsTechnologicalprocessJigdesign目錄1引言.12生產(chǎn)綱領(lǐng).22.1計(jì)算生產(chǎn)綱領(lǐng)決定生產(chǎn)類型.22.2計(jì)算生產(chǎn)節(jié)拍.33零件的分析.43.1零件的作用.43.2零件的工藝分析.44工藝規(guī)程設(shè)計(jì).64.1確定毛坯的制造形式.64.2基面的選擇.84.3制訂工藝路線.104.4機(jī)械加工余量、工序尺寸及毛坯尺寸的確定.124.5確定切