附錄348第1章附錄3外文文獻(xiàn)DesignofMovableGantryCNCMillingMachineZHANGJianAbstract:thispaperdescribesthencmillingroller,theoveralldesignandanalysesthebilateralsuper-modulusgearpairofdrivingmechanismofthemainpointsofdesign,installationguidesurfaceoftheXaxisisintroducedinthispaperKeywords:mobilencmillingdesignThismachineismainlyusedformetalpartsoftheplaneandinclinedplanework.Ithasenoughrigidity,MillingheadadoptsmillingheadinTaiwan,Millingheadwithflexible,Spindlemotorisfrequencyconversionmotor.Itcanundertakesteplessspeed,Ensureaccuracyofmachinetoolsandmachiningprecisionhasgoodstability,Thismachineisofhighefficiencyandexercise,Forconvenience,makethedrivemorereliableandconvenientinmaintenance,lessconsumption,beautifulmodelling,etc,widelyusedinmechanicalmanufacturingindustry.ThispaperdescribedthemobileCNCmillingreferstolongmenframeworkVerticalmillingmovement.Thebiggestadvantageofmillingrolleris(1)Machinecoveranareaofanareasmall.WorkbenchmobileLongmenmillingmachine,completemachinemustbehigherthanverticalstrokelengthtwotimes.However,WorkbenchmobileLongmenmillingmachine,Thelengthofsideframewhichisfabricatedaccordingtoaddonlylongitudinaltravelwidth,Thedynamicresponseofthemachineisgood.WorkbenchmobileLongmenmillingmachineadoptsfixedtable.Thewholecastoutwithbed,LongmenframeworkoflongitudinalmotionDrivetorqueequivalentunchanged,Itisnotbecauseof燕山大學(xué)本科生畢業(yè)設(shè)計(jì)（論文）bearingtheweightoftheworkpiecechangesChange,soastoensuretheaccuracyandperformanceofthemachinetool.TheindependentdesignmobilencLongmenmilling（FIG1）hasbeenaspecialmachinetouse.Itcansatisfythelargecastings,steelpartsboringandmilling,drilling,etcmultipleoperationprocess.Itisrightmillinghead,Italsocanprocessthe4sideofworkpiece.ThegoalofthemaindesignparameterssuchasLongmenmillingunder:workbencharea1800mm4000mm,ThetravelforXaxis:4000mmThetravelforYaxis:2000mmThetravelforZaxis:750mm,Spindlepower18.5KW,Eachaxisrapidfederate10m/min.Figure1Mobilencmilling1.MechanicalpartsdesignThebedincludeBed,Slide,Longmenframespindlebox,ThreeaxistodrivemechanicalpartsandrelatedCNCservopart,Now,Thedesignprocessisemphasizedasfollows:Thebedisthebasicdesignwork,Thesizeofthebedofthedesignaffectsthecompletemachinedesign.AndtherationalityofthedesignofdirectlyaffectthewholeMachinestiffness.Thecross-sectionshapeforthe附錄350bedlike,(FIG2)Theplaneisworkingonabedofmesadesignhas9Tshapedgroove.FortheconvenienceofbedandworkingmesaofpuredigimageTprocessing,groovetankcompletely,Therightandlefttwoconcerningthedesignhasalongnarrowswingplane.Itisusedtolinearrollingguidevice,Theauthorputrailsurfacedesigninthetwosidebed.Themainconsiderationofforcetransmissiondirectionsandunloading,Becausethebedwillbedragonframeworkofgravity,cuttingforceandthegravityoftheworkpiece,Thisdesigncandirectlyintothegravityoflongmenframeworktomachinetools,andBedonlysufferthegravityoftheworkpiece.ThebedbythefollowingbasicwallthicknessdetermineBythefollowingformula.C=1/4(2L+B+H)Type:C,L,Bisrespectivelyforbedlength,widthandheightofsizeandunitforthem.Basedonequivalentsizec,Consultingrelevantform，Takethebasicwallthicknessis38mm，F(xiàn)igure2Shapeofconcerningthecross-sectionSpindleboxadopts300mm300mmsectiondesign.Thetorsionbendingcapacityarestronger.SpindlegearboxesUSEStwogearsGearslidingspeed-changemechanism.Itcanadaptroughmachiningrequirements.Spindleunitadoptsfoursupporting燕山大學(xué)本科生畢業(yè)設(shè)計(jì)（論文）structure,AheadthreegroupsofAnglecontactballbearingusedtowithstandcuttingforce.Spindleendadeepgrooveballbearingsareusedtounloading,ThatisnotoftheSlidinggearsoftheadditionalmoment.Longmenframeworkusedintegralframewhichisfabricatedaccordingtothedesignconcept,Ittookaboutbeamandcolumndesignintoawhole.Althoughmakecastingandassemblyadjustingdifficulty,thewholeframeworkoflongmenrigidbetter,moreimportantistoslidehaveassembledspindlebox,etc.Slideisdesignedintheframewhichisfabricatedaccordingtothegeometricaldimensionsandspindlebox,Accordingtothecenteraxisoftheguidebarasfaraspossibletofacefortheprinciple,TheZaxisandthedriverinstallationpositionindesign,effectivelyreducetheweightoftheslide.Designedtodriveintotheideaasfollows,TheXaxistodriveUsethebilateralsuper-modulusgearpairaggravatingpreloadinglinearrollingguidevice.XaxisandYaxisusesbigdiameterballscrewpreloadingvicehardenedguide.Railslidingpartsattachedengineeringplastics,Itavoidslowwhencrawlingphenomenon,andguidethedesignisinclinedwithadjustabledevice.Thismachinedesignmakethewholemachinetocoordinateperformance.Theaxisofthefeedingspeedandforcegettheoptimalmatching.DuetothelongitudinalaxismachinemovementX,andismovinglongmenframeworkoflongmenframeworkweighed10T,sothelinearrollingguiderailstomustchoose.Becausetheballrailsystemofsmallfrictioncoefficient,verysuitableforlongmenframeworkofmovingrigidityrequirement.Guidethesliderchooseonetype,eachslideblockdynamicloadcanachieve10t.Consideringthesafetycoefficient,everyguideinstallation2slider.Longmenframeworkforthedriverbilateralsuper-modulusgearpair(seechart2),feedmovementby3input,throughtwoinclinedgearmotorshaft/andaxisto2