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《車床轉(zhuǎn)盤零件的機(jī)械加工工藝規(guī)程和專用夾具設(shè)計(jì)畢業(yè)設(shè)計(jì)論文》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫(kù)。
1、摘要用與車外圓、端面和鏜孔等加工的機(jī)床叫車床。車削很少在其他種類的機(jī)床上進(jìn)行，因?yàn)槠渌麢C(jī)床都不能像車床那樣方便地進(jìn)行車削加工。由于車床除了用于車外圓外還能用于鏜孔、車端面、鉆孔和鉸孔，車床的多功能性可以使工件在一次定位安裝中完成多種加工。這就是在生產(chǎn)中普遍使用各種車床比其他種類的機(jī)床都要多的原因。車床的主要部件：床身、主軸箱組件、尾架組件、拖板組件、變速齒輪箱、絲杠和光杠大多數(shù)車床的刀架安裝在復(fù)式刀座上，刀座上有底座，底座安裝在橫拖板上?？衫@垂直軸和上刀架轉(zhuǎn)動(dòng)；上刀架安裝在底座上，可用手輪和刻度盤控制一個(gè)短絲杠使其前后移動(dòng)。轉(zhuǎn)盤用螺栓與中滑板緊
2、固在一起，松開螺母，可使其在水平面內(nèi)扳轉(zhuǎn)任意角度，小滑板沿轉(zhuǎn)盤上的導(dǎo)軌可以做短距離的移動(dòng)，當(dāng)轉(zhuǎn)盤扳轉(zhuǎn)某一角度后，小滑板便可帶動(dòng)車刀做相應(yīng)的斜向移動(dòng)。普通車床的轉(zhuǎn)盤位于上刀架和下刀架之間，它是上刀架的導(dǎo)向件，當(dāng)需要用小刀架車錐面時(shí)，可通過(guò)賺盤相對(duì)于下刀架的轉(zhuǎn)動(dòng)來(lái)調(diào)整錐角，本說(shuō)明書堆車床轉(zhuǎn)盤零件的作用，零件的工藝過(guò)程，夾具設(shè)計(jì)做了比較系統(tǒng)完整的分析和論證。對(duì)工藝規(guī)程的設(shè)計(jì)做了詳細(xì)的說(shuō)明，并制定了合理的加工工藝路線，編制了一整套的機(jī)械加工工藝卡片。對(duì)關(guān)鍵工序的加工余量、工序尺寸、工序公差、切削用量等進(jìn)行了計(jì)算。對(duì)機(jī)械加工工藝過(guò)程中需要的夾具具進(jìn)行了設(shè)
3、計(jì)分析，保證整個(gè)工藝過(guò)程的完整性。關(guān)鍵詞：金屬切削；轉(zhuǎn)盤；精度；工藝規(guī)程；公差A(yù)bstractThebasicmachinesthataredesignedprimarilytodoturning,facingandboringarecalledlathes.Verylittleturningisdoneonothertypesofmachinetools,andnonecandoitwithequalfacility.Becauselathecandoboring,facing,drilling,andreaminginadditiontot
4、urning,theirversatilitypermitsseveraloperationstobeperformedwithasinglesetupoftheworkpiece.Theseaccountsforthefactthatlathesofvarioustypesaremorewidelyusedinmanufacturingthananyothermachinetool.LatheConstruction:Theessentialcomponentsofalathearedepictedintheblockdiagram.Thes
5、earethebed,headstockassembly,tailstockassembly,carriageassembly,quick-changegearbox,andthelea&crewandfeedrod.Onmostlathesthetoolpostactuallyismountedonacompoundrest.Thisconsistsofabase,whichismountedonthecrossslidesothatitcanbepivotedaboutaverticalaxis,andan.uppercasting.The
6、uppercastingismountedonwaysonthisbase.sothatitcanbemovedbackandforthandcontrolledbymeansofashortleadscrewoperatedbyahand-wheelandacalibrateddial.Theturntableisfastenedtothemiddleslipboardbybolts.Loosethenut,wecanmaketheturntablerotatedinthelevelfornomaterwhatangle.Theminorsl
7、ipboardcanmovealongtherailofturntableforashortdistance.Whentheturntablerotatesanangle,theminorslipboardwillmakeasidelongdisplacementcarrying.Generally,theturntablelocatesbetweentheupanddownkniferest,itistheupkniferest’sorientedmember.Whenwewanttocuttheconebyusingtheminor,wec
8、anrotatetheturntable.Thisessaywillcoveranintegratedanalyzinganddemonstrates
