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外文翻译--X62W铣床数控化改造.doc

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外文翻译--X62W铣床数控化改造.doc

郑州科技学院本科毕业设计(外文翻译)题目普通X62W铣床的数控化改造设计学生姓名李博专业机械设计制造及其自动化班级08级本科(6)班学号200833164院(系)机械工程学院指导教师(职称)朱永刚畅静文(讲师)完成时间2012年5月16日X62WCNCmillingmachinetransformation1generalCNCtransformationoftheneedforanalysisOurabout3200000existingmachinetools,themachinetooltechnologystatusofageingisserious,accordingtostatistics,about30ofthetotalcountryequipmentinmorethan16years,ofwhichnearly30ofagemorethan26years,alltheseshowthepresentourcountrydidnotgomainlyrelyonprogressofscienceandtechnologyofmachinetoolstotransformtrack.Inaddition,withthedevelopmentofscienceandtechnology,productionisdependentonthedegreeofequipmentincreasesincreasingly,thecropoftheenterprise,quality,efficiency,cost,safetyandenvironmentalprotectionandlaboremotionsgetequipmentrestrict,realizethemodernizationofenterpriseoneselfbeimperative.Butaccordingtothedata,ourmetalcuttingmachinetoolproductiononlyaccountedforsimilarequipmenttohaveanamount1/28,suchastheannualproductionofallthemachinesusedtoreplacetheoldmachinetoolneeds28yearsso,ourcountryissolvedatpresentequipmenttechnicalprogressisthemainwayofmachinetools.2domesticandforeignresearchpresentsituationIntodaysworld,industrialdevelopedcountrytomachinetoolindustryheightseriously,competingforthedevelopmentofmechanicalandelectricalintegration,highprecision,highefficiency,highautomationandadvancedmachinetool,inordertoacceleratetheindustrialandeconomicdevelopment.Foralongtime,EuropeandtheUnitedStates,Asiaintheinternationalmarketareinfiercecompetition,hasformedaninvisiblefront,especiallywithmicroelectronics,computertechnology,numericalcontrolmachinetoolsinthenineteeneightieslateraccelerateddevelopment,putforwardmorerequirementsofallusers,hadbecomethefourbiginternationalmachinetoolexhibitiontodisplaymachinetoolmanufacturersadvancedtechnology,fortheuser,enlargethemarketfocus.ThemorefamouscontrolsystemJapanFANUCseries,Mitsubishiseries,OKUNIAseries,SODICKseries,seriesofHitachi,GermanySIEMENSseries,DECKELseries,Heidenhainseries,HELLERseries,theUnitedStatesALLENBRADLEYABseries,CINCINNANTIseries,Numseries,FIDIAseriesofFrance,Italy,Spain,SwitzerlandFAGORseries,AGseriesofdomesticseries.IntheUnitedStates,JapanandGermanyandotherdevelopedcountries,theywillmachinetransformationasaneweconomicgrowthsector,thebusinessscene,isinthegoldenage.Asthemachinetoolandthecontinuousadvancementoftechnology,machinetoolstransformationisatimelessissue.TransformationofChinasmachinetoolindustry,butalsofromtheoldtotheindustryintothedigitaltechnologybasednewindustries.IntheUnitedStates,Japan,Germany,withmachinetoolofnumericalcontroltechnicalreformationandproductionlinehasabroadmarket,hasformedaproductionlineofCNCmachinetoolandthenewindustry.IntheUnitedStates,reconstructionofmachinetoolindustrycalledmachineregenerationRemanufacturingindustry.EngagedinrenewableindustryswellknowncompaniesBertscheengineeringcompany,aytonmachinetoolcompany,DevliegBullavdPOservicesgroup,USequipmentcompany.TheUnitedStatescompanyhasbeeninChinaforthecompany.RebuildingofmachinetoolindustryinJapancalledmachinemodifiedRetrofittingindustry.EngagedinrefittingindustrywellknowncompanieshaveDoomsdayengineeringgroup,threepostmachinerycompany,Chiyodaengineeringmachinecompany,Nozakiengineeringcompany,Hamadaengineeringcompany,Yamamotoengineeringcompany.Catchupwiththepaceofcomputersystemstructure,acceleratethedevelopmentofNCsystemforNCdevelopmentspeed,hasbecomethemaintrend.Thefourthgenerationcomputerengineeringstructureandmicroelectronictechnologyasthebasis,makefulluseofexistingcomputerhardware,softwareresources,developmentofbustype,moduletype,opentype,embeddedonaflexibleNCsystem,whichissuitableformachiningcomplexparts,verticalmachinetoolwithCNCsystem,butalsoforfutureautomationupgradesthefunctionmaybeexpandedrequirements.ChinasNCsystemdevelopmenthasthefollowing3features1systemofhighgradenumericalcontroltechnologyhasbeenabreakthrough.AsofItypenumericalcontrolsystem,withmultiaxislinkagefunction,fastfeedspeedin1.67m/sabove,havestrongercommunication,managementfunction.2universalCNCsystemisamaturetechnology.BeijingMachineToolResearchInstituteBS9lsystem,thesesystemsaregenerallyequippedwithCRTdisplay,canbeconfiguredtoDCandACservodrive,24shaftlinkage.3theeconomictypeCNCsystemstillhasvastmarketprospect.Asaresultofthiskindofsystemhastheadvantagesofsimplestructure,cheapprice,verysuitableforsmallandmediumenterprisesinChina,isstillthemostwidelyappliedinCNCsystem.AtypicalNanjinggenerousJWKseries.Ourcountryisbigcountryofproductionofmachinetools,itistheuseofpower.NCmachinetoolisthekeytothedevelopmentofmachineryindustryproducts,ChinasCNCmachinetoolinmachinetoolproductsintheproportionoftheoveralllowlevelof.Butourcountryisadevelopingcountry,alotofenterprisesfinancialweakness,notlikelytospendalotofmoneyonalotofnewCNCmachinetools,whilealargenumberofuniversalmachinetoolcannotbealleliminated.Therefore,thetransformationofgeneralmachinetoolsCNCmachineisaeffectivewaytoimprovetherateofNCmachinetoolstransformation,lesscost,reformtargeted,timeisshort,afterthetransformationofthemachinetoolareabletoovercometheoriginalmachinefaultsandproblems,highproductionefficiency.3basicschemecomparisonandselectionNCtransformationofthemaingeneralplanshallincludethefollowingcontentstheservodrivesystem,numericalcontroldeviceselection,electricalequipment,mechanicaldesign,CNChardwaresystem.Showcenttonarrateasfollows.The3.1servodrivesystemServosystemisaimportantpartofNCmachinetool,itsperformancewilldirectlyaffectthemachiningaccuracy,surfacequalityandproductionefficiency,itcanbedividedinto3kinds,namely,openloop,closedloop,loop.3.1.1openloopsystemOpenloopsystemisthemostsimpleservo,steppermotorastheopenloopsystemmaindevice,ithastheadvantagesofsimplestructureelectricalcontrolanddrivecircuitissimple,smallvolume,lightweight,lowprice,convenientrepairandmaintenancecharacteristics

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