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外文翻译--开发一个混合的可编程的逻辑控制器.doc

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外文翻译--开发一个混合的可编程的逻辑控制器.doc

中国矿业大学2008届本科生毕业设计第1页翻译部分DEVELOPINGAHYBRIDPROGRAMMABLELOGICCONTROLLERPLATFORMFORAFLEXIBLEMANUFACTURINGSYSTEMKENVINJMCDERMOTTANDWENLONGALBERTYAONEWJERSEYINSTITUTEOFTECHNOLOGY,NEWARK,NJ07102ABSTRACTINTHISARTICLE,WEACTACCORDINGTOTHEPROGRAMMABLELOGICALCONTROLELECTRICCIRCUITANDTHEPERSONALCOMPUTERBASEDONPERSONALCOMPUTERMACHINEVISUALPERSONMACHINECONNECTIONMMIANDTHEDATACOLLECTIONDIRECTACTIONTHEUNIT,DESIGNSANDCARRIESOUTANIMBLEPROCESSINGSYSTEMFLEXIBLEPROCESSINGSYSTEMTHEIMPLEMENTATIONTOCONTROLTHEPLATFORMTHEFLEXIBLEPROCESSINGSYSTEMSESSENTIALASPECTLIESINITTOADAPTINTHEOPERATINGPROCESSFLEXIBILITYTHEPROGRAMMABLECONTROLLERPROVIDESTHEFEASIBLESOLUTIONFLEXIBILITYPROCESSINGSYSTEMAPPLICATIONTHEMETHOD,USESBASEDONPERSONALCOMPUTERSMMI/DAS,RELIESONTHEPROGRAMMABLELOGICALCONTROLLERTOAPPLYRAPIDLYINTHEEXECUTIONSEQUENCECONTROLPOLICYWITHMANAGESFRONTENDMMI/DASTHEPERSONALCOMPUTERMACHINETOMAKETHEVISUALOPERATIONCONTACTSURFACE,FILLSTHEPOWERFULGRAPHANDTHEREPORTTOOLMAYORUSESFROMPERSONALCOMPUTERSINFORMATIONBYACOMPANYSLOCALAREANETWORKTHECLIENTSERVERTECHNOLOGYTOASSIGNATPRESENT,BECAUSEHASFORTHEMICROCOMPUTERTECHNOLOGYANDSOFTWAREPROGRAMMINGTECHNOLOGYFOUNDATIONGATHERING,MANYUSERSWILLDISCOVERTHATTHEPROGRAMMABLELOGICALCONTROLLERWILLBEONESAVESTHECOSTINTHEMIDDLEANDSMALLSCALEFACTORYREALTIMECONTROLPROCESSTHEMETHOD,WHENPARTICULARLYTHEUSEMIXINGMETHODWILLSUPERVISEPERSONALCOMPUTERSTIMETHISARTICLESMAINGOALLIESINTHECERTIFICATEPROGRAMMABLELOGICCONTROLLERTORAPIDANDTHEREPEATEDCONTROLDUTYSENSITIVITY,ANDTOUSETHEPERSONALCOMPUTERMACHINETOPROVIDETHEINFORMATIONAUTOMATIONTHEFLOWINGANDTOACCEPTTHEOPERATORTOOPERATETHEINTENTION,THEREFORE,ISALSOPROVIDESFORTHEUSERALONGWITHTHEREQUESTCHANGE,BUTCHANGESUNCEASINGLYAMONITORINGPROCESSTOOL1INTRODUCED中国矿业大学2008届本科生毕业设计第2页THATINMANYKINDSOFPRODUCTMANUFACTURINGINDUSTRIES,THEPRODUCTIONAUTOMATIONSFORMISALSOFLEXIBLEPROCESSINGSYSTEMFMSFIRSTPROPOSEDINTHE1970SAFTERFLEXIBLEPROCESSINGSYSTEMSAPPEARANCEENHANCEMENTLABORPRODUCTIVITY,FLEXIBLEPROCESSINGSYSTEMSQUANTITYLARGESCALEGROWTHGRUVERANDZIMMERS1984THEENTIREWORLDASARESULTOFGLOBALCOMPETITIONSENHANCEMENT,THEPRODUCTIONCYCLEREDUCESGRADUALLY,ANDTHEPRODUCTIONCOSTINCREASESDAYBYDAYUSUAL,THEFLEXIBLEPROCESSINGSYSTEMISCOMPOSEDOFGROUPOFMACHINESORANOTHERAUTOMATEDWORKSTATION,FORMSSTANDARDIZEDTHESUBSYSTEM,FOREXAMPLENUMERICALCONTROLMACHININGCENTER,ROBOT,VISIONSYSTEMANDAPROCESSSTATIONANDSOONANDTHISMATERIALHANDLINGSYSTEMINTERCONNECTIONUSUALLYMALEK1991ACTUATESTHROUGHACOMPUTEREACHSTANDARDIZATIONSSYSTEMNEEDSASTANDARDIZEDTHECONTROLSYSTEM,ITSDIFFERENTSPAREPARTBYSINGLECONTROLLERALLSTANDARDIZATIONSSUBSYSTEMLOOKEDLIKEINTHEPASTEQUALLYBYTHECOMPUTERCONTROLTHESECONTROLLERSCARRYOUTTHEIRTASKUNDERAHIGHERHORIZONTALCONTROLLERSSURVEILLANCETOTHESYSTEM,TWOCONTROLDEVICESANDTHEINFORMATIONFLOWNEEDSTOAUTOMATETHEFLEXIBLEPROCESSINGSYSTEMSESSENTIALASPECTLIESINITSABILITYTOCHANGEALONGWITHTHECONTROLDUTYTHISFLEXIBILITYCANPRODUCETHECOMPONENTSTYPEINCLUDINGITQUANTITYANDTHETYPE,THEEXECUTIVECOMMAND,ASWELLASIMPROVESTHEPARTIALROUTESTOFLOWABILITYFINALLY,THECONTROLPLATFORMSHOULDHAVEABILITYTOCAUSETHEINFORMATIONFLOWINGAUTOMATION。USUALLY,SOME3KINDOFCONTROLPLATFORMUSESINTHEFLEXIBLEPROCESSINGSYSTEMMINICOMPUTER,MINIATUREELECTRONICACCOUNTINGMACHINEANDPROGRAMMABLELOGICALCONTROLLERMALEK1991THEMINICOMPUTERISVERYSUITABLECOMPLEX,LARGESCALE,CONTINUAL,RULESANDREGULATIONSCONTROLAPPLICATIONTHEPROGRAMMABLELOGICALCONTROLLERUSESINRAPIDANDTHEREPEATEDLOGICALCONTROLTHEPERSONALCOMPUTERPERSONALCOMPUTERISSUITABLEFORTHEMANMACHINEINTERFACEFUNCTIONFIRST,THEPROGRAMMABLELOGICALCONTROLLERREPLACERELAY,FORINTHEINDUSTRYENVIRONMENTINLANDTRANSPORTATIONEXTENSION,ITMAYEASILYBYWORKSHOPENGINEERANDTHEATTENDANTS,ISSERVICEDBYTHEFACTORYELECTRICIANATPRESENT,BECAUSEHASTHEMICROCOMPUTERTECHNOLOGYANDSOFTWAREPROGRAMMINGTECHNOLOGYFOUNDATIONGATHERING,MANYUSERSWILLDISCOVERTHATTHEPROGRAMMABLELOGICALCONTROLLERWILLAPPLYINTHEMIDDLEANDSMALLSCALEFACTORYREALTIMECONTROLPROCESSISSAVESTHECOSTMETHOD,WHENPARTICULARLYTHEUSEMIXINGMETHODWILLSUPERVISE中国矿业大学2008届本科生毕业设计第3页THISARTICLESGOALLIESINTHEPROCESSINGFLEXIBILITYPROCESSINGSYSTEMSMODERNIZEDTECHNOLOGYPROPOSEDTHATTHEDESIGNANDTHEDATAACQUISITIONSYSTEMDIRECTACTIONTHEFLEXIBLEPROCESSINGSYSTEMWHICHANDTHEPERSONALCOMPUTERCONTROLSFORTHEPROGRAMMABLELOGICALCONTROLLERBASEDONTHEVISUALPERSONMACHINECONNECTIONMMICONSTRUCTIONITSSTRUCTUREISASFOLLOWSTHEFIRST2PARTSSTARTFROMTHEFLEXIBLEPROCESSINGSYSTEMSDESCRIPTIONTOINTRODUCEINTHENEWJERSEYENGINEERINGINSTITUTENJITFACTORYCENTERLEVELMANUFACTURESYSTEM3RDPARTOFDESCRIPTIONFLEXIBILITYPROCESSINGSYSTEMSOPERATION4PARTSAND5PARTSDEMONSTRATEDISTHEPRESENTPROGRAMMABLELOGICALCONTROLLERCONTROLANDTHEPERSONALCOMPUTERGIVESTHEFLEXIBLEPROCESSINGSYSTEMACCORDINGTOMMI/DASINTHENJITAPPLICATION6PARTSCONTAINTHISPROGRAMMABLELOGICALCONTROLLERCONTROLANDTHEPERSONALCOMPUTERTHEFLEXIBLEPROCESSINGSYSTEMAPPLICATIONSUPERIORITYACCORDINGTOMMI/DASTHEOUTLINE2FLEXIBLEPROCESSINGSYSTEMSDESCRIPTION1ONEABOUTFLEXIBLEPROCESSINGSYSTEMDEVELOPMENTSVIEWPOINTASSHOWNINFIGUREITISCOMPOSEDOFTHEFOLLOWINGSEVERALPARTSMACANDKAMISETTY1991;MAT,1987THES1PROCESSINGTRANSMISSIONSYSTEMITISCOMPOSEDOF4VEHICLES,A,B,CANDD,THEFIXEDEQUIPMENTINSTALLSABOVEEACH,TOEACHWORKSTATIONTRANSPORTATIONSTWOSHIFTTABLE,TT,TT2ANDDOUBLEFEEDWAYMATERIALPROCESSESSYSTEMTODEVELOPAMIXNIMBLYPROGRAMMABLELOGICALCONTROLLERPLATFORMTHENASA11NUMERICALCONTROLMILLINGMACHINES,THEMILLINGMACHINEMAKESEACHDIFFERENTPARTACCORDINGTOTHECOMPUTERCONTROLGENERALELECTRICCOMPANYP50ASHARINGROBOTUSESFORTOLOADANDUNLOADASWELLASDELIVERSINTHENUMERICALCONTROLMILLINGMACHINEANDBETWEENTHETRANSPORTINGSTANDSANDTRANSPORTSITCONTAINS5COMPUTERPROGRAMSWHICHASSIGNSBYTHEPROGRAMMABLELOGICALCONTROLLERTHECOMPUTERPROGRAMCONTROLROBOTLOADINGPLACESDELIVERSBETWEENTHESYSTEMANDTHECARASWELLASTHENUMERICALLYCONTROLLEDMACHINETOOLANDCARSMATERIALFINALLYTWOPROCEDURESAREACCEPTINGORTHEREJECTIONCOMPONENTSCOMPLETETHEPARTDELIVERSSTANDSTHISSTATIONINCLUDINGAGRAVITYSLANTINGSLOT,PROVIDESTHEUNFINISHEDRAWMATERIALTHISSTATIONALSOCONTAINSTWOTYPEWAREHOUSESONEACCEPTSCOMPONENTSREJECTIONCOMPONENTSCOMPUTERVISIONSYSTEMTHEVISIONSYSTEMPROVIDESTHEVISIBLESELFSUPERVISORYPARTITISTHEMENUACTUATION,64STEPDENSITYSTEPSEDGEDETECTIONSYSTEMDRILLHOLEMACHINEHASTHEAUTOMATICDRILLHOLEFUNCTIONIBM7535INDUSTRYROBOTINBRIEF,THE中国矿业大学2008届本科生毕业设计第4页FLEXIBLEPROCESSINGSYSTEMHASTWOKINDOFROBOTS;FIRST,THENUMERICALCONTROLMILLINGMACHINE,ANOTHERISTHEMATERIALSHIFTEXPULSIONSYSTEM,SUPERVISESINCLUDINGTHEVANANDTHELIMITSWITCHANDBYGENERALELECTRICSSIXPROGRAMMABLELOGICALCONTROLLER,BYBASEDONPERSONALCOMPUTERSMACHINEVISUALMMI/DASMONITORINGVISIONSYSTEM3OPERATIONDESCRIPTIONTHEFLEXIBILITYPROCESSINGSYSTEMSACTIONCYCLECARRIESONBYTHEFOLLOWINGWAY1ATFIRST,TRANSPORTINGSYSTEMSALLFOURVANSARESPATIALMAYUSEFORRAWMATERIALTOINSTALLTODELIVERTHESTATIONTHE2GEROBOTWILLPUTONEAFTERTHEOTHERTHESEFOURPARTSWASSWINDLEDWHENTHESEFOURVEHICLELAYINGASIDEMATERIALTOTHESEFOURVANSTHEYALONGTHECLOCKWISEMIGRATIONABOVEFIRSTSTEPANDTHESECONDSTEPISTHEFLEXIBLEPROCESSINGSYSTEMSLOADINGPART3CHART2DEMONSTRATIONISONCEAFTERTHESEFOURDIFFERENTPARTSARELOADEDTHEPOSITIONWHICHISACCEPTEDBYFOURVANS4THEVANSTOPSWHENTHEDRILLHOLEMACHINE,THEIBMROBOTDRILLSVARIOUSHOLESONTHEDIFFERENTSURFACE5GEROBOTTRANSFERSTOTHEVAN,MOVESONCEMORECOMPONENTSVEHICLEONTOXPOSITION,ANDLOADSINTOITLOCATEDATONTHENUMERICALCONTROLMACHINETABLESFIXEDEQUIPMENT6THESPAREPARTISINSTALLEDONTHENUMERICALCONTROLMILLINGMACHINE,THESEROBOTSWITHDRAW,MILLINGMACHINEMILLINGTHESEREQUESTPART7MILLINGFINISHED,THEMACHINISTMOVEDFROMTHEMILLINGMACHINEFIXESONMILLINGMACHINESSPAREPART8THEROBOTPLACESTHEENDPRODUCTONTHEIDENTICALTRANSPORTVEHICLE9SIGNALTRANSMITSTOTHEVISIBLEPHOTOGRAPHYEXAMINATIONPART10THESIGNALDIRECTIONROBOTACCEPTSTHECOMPONENTSORTHEREJECTIONCOMPONENTSSIGNAL11ROBOTMOVESARECEIVEPROCEDURE,ANDTHELAYINGASIDECOMPONENTSORMOVEAREJECTIONPROCEDUREINARECEIVEVESSELTOLAYASIDETHECOMPONENTSINAREJECTIONVESSEL12ROBOTTOTHECOMPONENTSSTANDS,ANDLOADSINTONEWCOMPONENTSTHEVEHICLEVEHICLEISISSUEDTHESYSTEM,NEXTCIRCULATIONSTARTSTEP3ARRIVE13STEP13STEPSFORMSAFLEXIBLEPROCESSINGSYSTEMSOPERATINGCYCLE4USESTHEPROGRAMMABLELOGICALCONTROLLERTOCONTROLSETOFFLEXIBLEPROCESSINGSYSTEMTHEFLEXIBILITYPROCESSINGSYSTEMSCONTROLSYSTEMSIMPORTANTCHARACTERISTICTOBEASFOLLOWSBECAUSESYSTEMSTRAPEZOIDALCHARTLOGICCAPABILITYSYSTEMEASYTOFORM,ANDCANADAPTTHECHANGE;BYTHESIMILARWAY,THESYSTEMISRELATIVELYEASYTOTHEPROCEDUREANDTHEMATERIAL;THESYSTEMEASYMAINTAINS,ANDOVERHAULSREDUCES,BECAUSETHEONLINEDIAGNOSISMAYPROVIDEANDPOINTOUTTHEQUESTIONTHENREDUCTIONSERVICEACCURATELY;OBVIOUSLY,THESYSTEMISEASYAND

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