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英文原文EngravingandMillingMachineDesignBasedonOpenCNCSystemCaoShukuna,SuiZhimingb,LiuLuning,WangGuicong,SongWeiweiSchoolofMechanicalEngineering,UniversityofJinan,ShandongProvince,Chinaacaoshukun126.com,bszm9588126.comAbstractInviewofapplicationrequirements,controlaxes,thedevelopmentcycleandotherfactorsofopenCNCmachinetools,weconsiderthemodularastheguidingideologyandproposeadesignmethodofthreedimensionalengravingandmillingmachinebasedonopenCNCsystem.Inthispaperwemakeadetaileddesignformechanismstructureandcontrolsystem.Experimentsshowthatthismachinehasmillingandengravingcapabilities,canprocessmetalandnonmetallicparts,whichisahighefficiency,multifunctionnumericalcontrolequipment.KeywordsengravingandmillingmachineopenCNCsystemCNCmachinetoolsdesignofmachinetools.IntroductionHighspeedmachiningiscontemporaryadvancedmanufacturingtechnologyanimportantcomponentofthehighefficiency,Highprecisionandhighsurfacequality,andotherfeatures.ThisarticlepresentsthetechnicaldefinitionofthecurrentstateofdevelopmentofChinasapplicationfieldsandthedemandsituation.Highspeedmachiningisorientedtothe21stcenturyanewhightech,highefficiency,Highprecisionandhighsurfacequalityasabasicfeature,intheautomobileindustry,aerospace,DieManufacturingandinstrumentationindustriesgainedincreasinglywidespreadapplication,andhasmadesignificanttechnicalandeconomicbenefits.Contemporaryadvancedmanufacturingtechnologyanimportantcomponentpart.HSCistoachievehighefficiencyofthecoretechnologymanufacturers,intensiveprocessesandequipmentpackagedsothatithashighproductionefficiency.Itcanbesaidthatthehighspeedmachiningisanincreaseinthequantityofequipmentsignificantlyimproveprocessingefficiencyessentialtothetechnology.Highspeedmachiningisthemajoradvantagesimproveproductionefficiency,improveaccuracyandreducetheprocessingofcuttingresistance.Thehighspeedmachiningofmeaning,atpresentthereisnouniformunderstandingtherearegenerallyseveralpointsasfollowshighcuttingspeed.usuallyfasterthanthatoftheirnormalcutting510timesmachinetoolspindlespeedhigh,generallyspindlespeedin20000r/minabove10,000forhighspeedcuttingFeedathighvelocity,usually1550m/minupto90m/minFordifferentcuttingmaterialsandthewiringusedthetoolmaterial,highspeedcuttingthemeaningisnotnecessarilythesameCuttingprocess,bladedthroughfrequencyToothPassingFrequencyclosertothemachinetoolWorkpiecesystemthedominantnaturalfrequencyDominantNaturalFrequency,canbeconsideredtobehighspeedcutting.Visibilityhighspeedmachiningisacomprehensiveconcept.1992.Germany,theDarmstadtUniversityofTechnology,ProfessorH.Schulzinthe52ndontheincreaseofhighspeedcuttingfortheconceptandthescope,asshowninFigure1.Thinkdifferentcuttingtargets,showninthefigureofthetransitionareaTransition,tobewhatiscommonlycalledthehighspeedcutting,Thisisalsothetimeofmetalcuttingprocessrelatedtothetechnicalstaffarelookingforwardto,orisexpectedtoachievethecuttingspeed.Highspeedmachiningofmachinetools,knivesandcuttingprocessandotheraspectsspecificrequirements.Severalwerefromthefollowingaspectshighspeedmachiningtechnologydevelopmentstatusandtrends.Atthisstage,inordertoachievehighspeedmachining,generalwiringwithhighflexibilityofhighspeedCNCmachinetools,machiningcenters,byusingadedicatedhighspeedmilling,drilling.TheseequipmentincommonisWemustalsohavehighspeedandhighspeedspindlesystemfeedingsystem,Cuttingcanbeachievedinhighspeedprocess.HighspeedcuttingwiththetraditionalcuttingthebiggestdifferenceisthatMachinetoolworkpiecethedynamiccharacteristicsofcuttingperformanceisstrongerinfluence.Inthesystem,themachinespindlestiffness,griporform,alongknifeset,spindleBroach,torquetoolset,Performancehighspeedimpactareimportantfactors.Inthehighspeedcutting,materialremovalrateMetalRemovalRate,MRR,unittimethatthematerialwasremovedvolume,usuallybasedonthemachinetoolworkpiecewhetherProcessingSystemchatter.Therefore,inordertosatisfythehighspeedmachiningneeds,wemustfirstimprovethestaticanddynamicstiffnessofmachinespindleisparticularlythestiffnesscharacteristics.HSCreasonatthisstagetobesuccessful,averycrucialfactoristhedynamiccharacteristicsofthemasterandprocessingcapability.InordertobetterdescribethemachinespindlestiffnesscharacteristicsoftheprojectpresentednewdimensionlessparameterDNvalue,usedfortheevaluationofthemachinetoolspindlestructureonthehighspeedmachiningofadaptability.DNvalueofthesocalledaxisdiameterperminutespeedwiththeproductThenewlydevelopedspindlemachiningcenterDNvalueshavebeengreatoveronemillion.Toreducetheweightbearing,butalsowithanarrayofsteelproductsthantothemuchmorelightceramicballbearingsBearingLubricationmostimpressivemannermixedwithoillubricationmethods.Inthefieldofhighspeedmachininghaveairbearingsandthedevelopmentofmagneticbearingsandmagneticbearingsandairbearingscombinedconstitutethemagneticgas/airmixingspindle.Feedthemachinesector,highspeedmachiningusedinthefeeddriveisusuallylargerlead,multiplehighspeedballscrewandballarrayofsmalldiametersiliconnitrideSi3N4ceramicball,toreduceitscentrifugalandgyroscopictorqueByusinghollowcoolingtechnologytoreduceoperatingathighspeedballscrewastemperaturegeneratedbythefrictionbetweentheleadscrewandthermaldeformation.Inrecentyears,theuseoflinearmotordrivenhighspeedsystemofuptoSuchfeedsystemhasremovedthemotorfromworkstationstoSlideinthemiddleofallmechanicaltransmissionlinks,ImplementationofMachineToolFeedSystemofzerotransmission.BecausenolinearmotorrotatingcomponentsfromtheroleofcentrifugalforcecangreatlyincreasethefeedrateLinearMotoranothermajoradvantageofthetripisunrestricted.Thelinearmotorisaverytimeforacontinuousmachineshopinpossessionofthebed.Resurfacingoftheverymeetingwhereaveryearlystagemovementcango,butthewholesystemofuptothestiffnesswithoutanyinfluence.Byusinghighspeedscreworlinearmotorcangreatlyenhancemachinesystemofuptotherapidresponse.Themaximumaccelerationlinearmotorsupto210GGfortheaccelerationofgravitythelargestfeedrateofupto60200m/minorhigher.2002worldrenownedShanghaiPurdonmaglevtrainprojectofmaglevtracksteelprocessing,UsingtheShenyangMachineToolGroupHoldingsLimitedMcNairfriendshipcompanyproductionplantsintoextralonghighspeedsystemforlargescaleprocessingcentersachieveThemachinefeedingsystemforthelinearguideandrackgeardrive,thelargesttablefeedrateof60m/min,Quicktripof100m/min,2gacceleration,maximumspeedspindle20000r/min,themainmotorpower80kW.Xaxisdistanceofupto30m,25mcuttinglongmaglevtracksteelerrorislessthan0.15mmMaglevtrainsforthesmoothcompletionoftheprojectprovidedastrongguaranteefortechnologyInaddition,thecampaignmachineperformancewillalsodirectlyaffecttheprocessingefficiencyandaccuracyofprocessing.Moldandthefreesurfaceofhighspeedmachining,themainwiringwithsmallcutdeepintomethodsforprocessingMachinerequirementsinthefeedrateconditions,shouldhavehighprecisionpositioningfunctionsandhighprecisioninterpolationfunction,especiallyhighprecisionarcinterpolation.Arcprocessingistoadoptlegislationorthreadmillingcuttermoldormachiningparts,theessentialprocessingmethods.(1)CuttingToolsToolMaterialdevelopmentHighspeedcuttingandtechnologicaldevelopmentofthehistory,toolmaterialiscontinuousprogressofhistory.TherepresentationofhighspeedcuttingtoolmaterialiscubicboronnitrideCBN.FaceMillingCutteruseofCBN,itscuttingspeedcanbeashighas5000m/min,mainlyforthegraycastironmachining.PolycrystallinediamondPCDhasbeendescribedasatoolofthe21stcenturytool,Itisparticularlyapplicabletothecuttingaluminumalloycontainingsilicamaterial,whichislightweightmetalmaterials,highstrength,widelyusedintheautomobile,motorcycleengine,electronicdevicesshell,thebase,andsoon.Atpresent,theuseofpolycrystallinediamondcutterFaceMillingalloy,5000mm/minthecuttingspeedhasreachedapracticallevel.Inadditionceramictoolalsoappliestograyironofhighspeedmachining(2)ToolCoatingCBNanddiamondcutter,despitegoodhighspeedperformance,butthecostisrelativelyhigh.Usingthecoatingtechnologytomakecuttingtoolisthelowprice,withexcellentmechanicalproperties,whichcaneffectivelyreducethecost.Nowhighspeedprocessingofmillingcutter,withmostofthewiringbetweentheTiA1Ncompositetechnologyforthewayofmultiprocessing,Ifpresentinthenonferrousmetaloralloymaterialdrycutting,DLCDiamondlikeCarboncoatingonthecutterwasofgreatconcern.Itisexpectedthatthemarketoutlookisverysignificant(3)ToolclampingsystemToolclampingsystemtosupporthighspeedcuttingisanimportanttechnology,currentlythemostwidelyusedisatwofacedtoolclampingsystem.HasbeenformallyinvestedasacommoditymarketatthesameclampingtoolsystemisHSK,Kamanabigplus.NC5AHOsystemsInthehighspeedmachining,toolandfixturerotaryperformanceofthebalancenotonlyaffectstheprecisionmachiningandtoollife.Itwillalsoaffectthelifeofmachinetools.So,thechoiceoftoolsystem,itshouldbeabalancedselectionofgoodproducts.Cuttingspeedofhighspeedprocessingofconventionalshearvelocityofabout10timesForeverytoothcutterfeedrateremainedbasicallyunchanged,toguaranteepartsmachiningprecision,surfacequalityanddurabilityofthetool,Feedvolumewillalsobeacorrespondingincreaseabout10times,reaching60m/min,Someevenashighas120m/min.Therefore,highspeedmachiningisusuallyprecludedtheuseofhighspeed,feedanddepthofcutsmallcuttingparameters.Duetothehighspeedmachiningcuttingcushiontendtobesmall,theformationofverythinchiplight,CuttingputtheheatawayquicklyIfthewiringusinganewthermalstabilitybettertoolmaterialsandcoatings,Usingthedrycuttingprocessforhighspeedmachiningistheidealtechnologyprogram.Toadapttotheneedsofnewmodels,autobodypanelmoldsandresinpreventionblocktheformingdie.Mustshortentheproductioncycleandreducethecostofproductionand,therefore,wemustmakegreateffortstopromotetheproductionofhighspeeddieintheprocess.SAICaffiliatedwiththecompanythatComparedtothepast,finishing,furtherprecisionthesametime,thesurfaceroughnessmustbemet,thebendingofprecision,thisshouldbesubjecttoappropriateintensivemanualprocessing.Duetotheextremelyhighcuttingspeed,andthelastfinishingprocesses,theprocessingcycleshouldbegreatlyreduced.ToplayformachiningcentersandboringandmillingmachiningcentercategoryrepresentedbythehighspeedmachiningtechnologyandautomatictoolchangefunctionofdistinctionsPotentialtoimproveprocessingefficiency,theprocessingofcomplexpartsusedtobeconcentratedasmuchaspossiblethewiringprocess,thatisafixtureinachievingmultipleprocessescentralizedprocessinganddilutethetraditionalcars,milling,boring,Threadprocessingdifferentcuttingthelimitsoftechnology,equipmentandgivefullplaytothehighspeedcuttingtoolfunction,NCiscurrentlyraisingmachineefficiencyandspeedupproductdevelopmentinaneffectiveway.Therefore,theproposedmultipurposetoolofthenewrequirementscallforatooltocompletedifferentpartsofthemachiningprocesses,ATCreducethenumberofATCtosavetime,toreducethequantityandtoolinventory,andmanagementtoreduceproductioncosts.MorecommonlyusedinamultifunctionalToolmillingboringandmilling,drillingmilling,drillingmillingthreadrangetool.Atthesametime,massproductionline,againsttheuseoftechnologyrequiresthedevelopmentofspecialtoolsorasmartcompositetool,improve,processingefficiencyandaccuracyandreducedinvestment.Inthehighspeedcuttingconditions,andsomespecialtoolscanbepartoftheprocessingtimetotheoriginal1/10below,resultsarequiteremarkable.HSChasalotofadvantagessuchasalargenumberofmaterialsrequiredresectionoftheworkpiecewithultrafine,thinstructureoftheworkpiece,Traditionally,theneedtospendverylonghoursforprocessingmobileworkpieceandthedesignofrapidchange,shortproductlifecycleoftheworkpiece,abletodemonstratehighspeedcuttingbroughtadvantages.Traditionallythedieandmouldmachiningwasmainlybasedonmachiningcentermillingprocessing,buttheprocessingcenterhasitsshortcomingsandthecostishigh.OurdomesticindustriesstartedwiththeconceptofCNCengravingmachine.Theadvantageofengravingmachineiscarving.Itappearstobeinadequatewhenmachiningmaterialswithgreathardness.ThisCNCengravingandmillingmachineisdesignedtofillthegapsbetweenthetwo.Theengravingandmillingmachinecanbeusedtonotonlysculpturing,butalsomilling,whichisanefficienthighprecisionCNCmachinetool.Themachinecanbeusedinthemoldindustry,woodenengravingindustry,advertisingindustry,and
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