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1、内蒙古科技大学硕士学位论文AbstractWiththerapiddevelopmentofproductionandtechnology,themachineisthemainequipmentmanufacturingindustry,whichisdevelopingtohighspeed,highefficiency,highprecisionandautomationdirectiondevelopment,structureismorecomplex,theperformancerequiremen
2、tsarealsogettinghigherandhigher.However,whentheCNCmachinetoolworkingatlowspeed,heavyloadconditions,thestick-slipphenomenonappearstoaffectthesmoothfeedingmachine,themachiningaccuracyandsurfacefinishmachiningthedegreeofvariation,reducethepositioningprecisionof
3、themachinetool,aggravatetherailwear,machinetoolsandeventhelossofprocessingmachine,resultinginmachinedowntime,resultinginproductiontoastandstill,whichwillleadtogreatereconomiclosses.Therefore,effectivelysolvethecrawlphenomenonofNCmachinetoolinthefieldofmachin
4、eryisparticularlyimportant.BasedonthecauseofmanyreferencestocausecreepingphenomenonofNCmachinetoolsisthebasisofunderstandingthestick-slipphenomenon,aroundCKA6150CNClatheproducedtheinfluencefactorswerediscussed,basedonnumericalcontrollathetoproducethecrawling
5、motiontheoryanalysisandnumericalsimulationanalysis,findoutthecausesoflathetoproducethecrawlingphenomenonandinhibitionofcrawlingmethod.Themaincontentsareasfollows:Firstly,accordingtothereferences,introducesthestick-slipphenomenonofNCmachinetool,accordingtothe
6、simplifiedkinematicsmodel,onthemathematicdescription,Thecriticalconditionisnotstick-slipphenomenonisderived,andthendrawnocriticalvelocityexpressionsofcrawling,analysisofthevariousfactorsfortheCNCmachinestick-slipphenomenonintheory.Secondly,accordingtothekine
7、maticsmodelofthefeedsystem,theapplicationofADAMSsoftwaretoestablishthethree-dimensionalparameterizedsimulationmodel,Thesimulationanalysisofthedrivingspeed,simulationandanalysisoftheimpactoffactorsofII内蒙古科技大学硕士学位论文dampingandmovingpartsdrivespeed,thestiffnesso
8、fthesystem,systemqualityinfluencethecrawlingphenomenon,thesimulationresultsonthetheoreticalanalysisofthestick-slipphenomenonhasalsomadeafurtherverification,butalsoforthefollowinganalysisofCNClat
