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南昌航空大学科技学院机械设计制造及其自动化专业2010届毕业设计论文——诺基亚3120外壳注塑模设计及数控仿真加工1英文资料CNCWhatisCNC?CNCisshortfor“ComputerNumericControl”whichishowacomputertalkstoamillingmachinetocontrolitsmovementstocutthepartyoudesign.Thelanguageitusesiscalled“g-code”,whichisaseriesofinstructionsthat,combinedwithX,YandZcoordinatesdenotesdirection,speedsandkeypointsoftheshapetobecut.Inthepast,forexample,eventhemostskilledmachinistwouldhaveaproblemcuttingacirclebecauseboththeXandYhandwheelswouldhavetobecrankedatthesametimeatconstantlyvaryingratesatthesametime.Thecomputer,however,hasnotroubledoingthis,andacomplicatedshapecanbecutjustaseasilyasastraightline.TheadvantageofCNCbeyondcuttingdifficult3Dshapesisthatoncetheprogramiswrittenandtheholdingfixturesmade,multipleidenticalpartscanbemaderapidly.CNCMILLINGComputerNumericalControl(CNC)MillingisthemostcommonformofCNC.CNCmillscanperformthefunctionsofdrillingandoftenturning.CNCMillsareclassifiedaccordingtothenumberofaxesthattheypossess.Axesarelabeledasxandyforhorizontalmovement,andzforverticalmovement,asshowninthisviewofamanualmilltable.Astandardmanuallight-dutymill(suchasaBridgeport™)istypicallyassumedtohavefouraxes:1.Tablex.2.Tabley.3.Tablez.4.MillingHeadz.Thenumberofaxesofamillingmachineisacommonsubjectofcasual"shoptalk"andisofteninterpretedinvaryingways.Wepresentherewhatwehaveseentypicallypresentedby南昌航空大学科技学院机械设计制造及其自动化专业2010届毕业设计论文——诺基亚3120外壳注塑模设计及数控仿真加工2manufacturers.Afive-axisCNCmillingmachinehasanextraaxisintheformofahorizontalpivotforthemillinghead,asshownbelow.Thisallowsextraflexibilityformachiningwiththeendmillatananglewithrespecttothetable.Asix-axisCNCmillingmachinewouldhaveanotherhorizontalpivotforthemillinghead,thistimeperpendiculartothefifthaxis.CNCmillingmachinesaretraditionallyprogrammedusingasetofcommandsknownasG-codes.G-codesrepresentspecificCNCfunctionsinalphanumericformat.DescriptionTheFlashCutCNCmillsaredesignedforsimpleCNCmachiningofalmostanysmallpart.They'reaccurate,versatile,andextremelyeasytouse.PeoplenewtomachiningorCNCcontrolcanusethesystemtocreateanythingfromsimple南昌航空大学科技学院机械设计制造及其自动化专业2010届毕业设计论文——诺基亚3120外壳注塑模设计及数控仿真加工32Dprofilestocomplex3Dshapes.Experiencedmachinistscanchoosefromawiderangeofavailableoptionsforcomplexsetupsandadvancedmachiningoperations.FlashCutCNCMill2000-FlashCutCNCMill5400-ServoStepper(SC-2000-H)(SC-2000-V)TypicalApplicationsRapidprototypingLight-mediumdutyproductionJewelryMoldmakingEngravingWoodworkingLabWorkEducationHobbyImportantFeaturesReliable,highqualityCNCmillPowerful,intuitiveWindows-basedcontrolsystemFastandaccurate南昌航空大学科技学院机械设计制造及其自动化专业2010届毕业设计论文——诺基亚3120外壳注塑模设计及数控仿真加工4WiderangeoftoolingandaccessoriesCutssteel,aluminum,brass,plastic,wood,waxandmorePowerfulmotorsandmotordriversDirectimportfromCADforsimpledesignsCAMSoftwareavailableforimportingcomplex3DmodelsChoiceofStepperorServocontrolsystemVariablespindlespeedExceptionaltechnicalsupportExceptionalvalueComponentsIncludedTabletopMillwithIntegratedMotorMountsFlashCutCNCControlSoftwareSignalGeneratorStepperControlSystemo3-Axis,2Amp/axisStepperMotorDriverboxo(3)Size23,135oz-insteppermotorswith6'cablesServoControlSystemo3-Axis,8Amp/axiscontinuous,12Amp/axispeakServoMotorDriverboxo(3)Size23,151oz-inservomotorswith10'cablesAllRequiredCablesSoftwareandHardwareManualsFreeTechnicalSupportFlashCutalsooffersMill+Lathecombinationpackagesthatincludeone3-Axiscontrolsystemandtwomachinetoolswithmotorsmounted.YoucaneasilyswitchbetweenrunningthemillandrunningthelathebypluggingtheappropriatemotorsintotheMotorDriverBox.TheMill+Lathecombinationpackagesincludethecomponentslistedaboveplus:TabletopLathewithIntegratedMotorMountsStepperControlSystemo(2)Size23,135oz-insteppermotorswith6'cablesServoControlSystem(2)Size23,151oz-inservomotorswith10'cables
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