6英文资料gy535x60(j1型、半)联轴器加工工艺与工装设计

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1、外文资料HerbertW.YankeeManufacturingProcesses[M]Prentice-HallInc.，1979Medium-ProductionLathesDuplicatingLathe:Duplicating(ortracer)lathesaredesignedtoproduceduplicatepartsbysemiautomaticmeans.Exceptftape-controlledlathes(discussedinChapter21)，theoperatorisrequiredtoloadandunloadtheworkpi

2、ecesandtostarttheautomaticoperationforeachcuttingcycle.Onesingle-pointcuttingtoolisused.Straight，tapered,andcontouredturnedorfacedsurfacesandboredholesarerepetitivelyproducedbythemotionofastylusasitfollowstheoutlineofalow-costtemplate.Thetemplateisgenerallymountedattherearofthemachin

3、e.Themovementsofthestylusareactuatedbymechanical,air,hydraulic，orelectricalmethods.Workmaybeheldbetweencentersorchucked.Duplicatingortracerattachmentsaregenerallyfactory-installedonastandardenginelathe，althoughspecialmachinesarealsoavailable.TurretLathe:Turretlathesaresemiautomaticma

4、chinetoolswhichcanproducepartsingreaterquantities,toclosertolerances，faster,andasaresultmoreeconomicallythanispossiblebyconventionalenginelathes.Unliketheenginelathe,theturretlatheisnotrestrictedtoasinglecuttingtool.Aleadingadvantageisthatseveraloperationsmaybeperformedonaworkpaceata

5、giventime.Itshouldbenoted，however，thattherangeandtypesofturretlatheoperationsareessentiallythesameasthoseassociatedwiththeenginelathe.FIGURE16-6Turretlatheproductionpart(Courtesy，JonesLamson)Figure16-6illustratesexamplesofturretlatheproductionparts.Tooffsettheneedforfrequenttoolchang

6、es，asix-sidedturretisusedinplaceofatailstock.Theturretmayeasilybeindexedsothatanydesiredcuttingtoolmaycontacttheworkpiece.Additionalcuttingtoolsmaybeplacedinsquareturretsonthecrossslideandmaybereadilyindexedtomachineothersurfaces.Unlikeacuttingtoolusedonanenginelathe，onceturretlathet

7、oolshavebeenproperlyinsertedinoneofthevarioustoolingstations,theyneednotberemoveuntiltheyrequiresharpeningoraftertheproductionrunhasbeencompleted.Finally，thereisalsoavailableasingletoolholderonaturretlathewhichismountedwithacuttingtoolontherearofthecrossslide.Fulladvantageoftheversat

8、ilityandadap