附录348附录3外文文献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/ItisnotbecauseofbearingtheweightoftheworkpiecechangesChange/soastoensuretheaccuracyandperformanceofthemachinetool/燕山大学本科生毕业设计（论文）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-sectionshapeforthebedlike/(FIG2)Theplaneisworkingonabedofmesadesignhas9Tshapedgroove/FortheconvenienceofbedandworkingmesaofpuredigimageTprocessing/groovetankcompletely/Therightandlefttwoconcerning附录350thedesignhasalongnarrowswingplane/Itisusedtolinearrollingguidevice/Theauthorputrailsurfacedesigninthetwosidebed/Themainconsiderationofforcetransmissiondirectionsandunloading/Becausethebedwillbedragonframeworkofgravity/cuttingforceandthegravityoftheworkpiece/Thisdesigncandirectlyintothegravityoflongmenframeworktomachinetools/andBedonlysufferthegravityoftheworkpiece/ThebedbythefollowingbasicwallthicknessdetermineBythefollowingformula/C=1/4(2L+B+H)Type/C/L/Bisrespectivelyforbedlength/widthandheightofsizeandunitforthem/Basedonequivalentsizec/Consultingrelevantform，Takethebasicwallthicknessis38mm，Figure2Shapeofconcerningthecross-sectionSpindleboxadopts300mm300mmsectiondesign/Thetorsionbendingcapacityarestronger/SpindlegearboxesUSEStwogearsGearslidingspeed-changemechanism/Itcanadaptroughmachiningrequirements/Spindleunitadoptsfoursupportingstructure/AheadthreegroupsofAnglecontactballbearingusedtowithstandcuttingforce/Spindleendadeepgrooveballbearingsareusedtounloading/ThatisnotoftheSlidinggearsoftheadditionalmoment/燕山大学本科生毕业设计（论文）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/andthenbytwogear-andtodriverack/Andthuspromotelongmenframew3thehelicalgearaxlespiralofthetwooppositedirections/ThroughthespringintheshaftonathreeaxialforceF/makethehelicalgeartraceofaxialmovementproducedat1and2andaxialshaftintheoppositedirectionAngleofsmall/round4and5)respectively/thegeartoothsurfacewithtworack/eliminatethegap/
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