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时间:2020-04-05
《基于FMECA的数控机床主轴系统故障分析.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、Jun.2015HydromechatronicsEngineeringV0l-43No.12HydromechatronicsEngineeringhttp://jdy.qks.cqut.edu.onE-mail:jdygcyw@126.cornFailureanalysisforspindlesystemofCNCmachinetoolsbasedonFMECAⅡ一tieZHANG.Li—daZHU1,2DepartmentofChemicalEngineeringMechanics,JilinVocati0nalCollegeOfIndustryandTechnolo
2、gy,Jilln130013,China).(CollegeofMechanicalScienceandEngineering,fllinUniversity,Changchun130022,)Abstract:ThespindlesystemisthekeysubsystemofCNCmachinetools,ithaslotsoffailuI.eandhascomDa.sonofasinglefailurephenomenon。Thereforefailurephenomenonoftencannotbeusedt0failurediagnosisand,trouble
3、shooting.Inthispaper,FMECAanalysismethodswasused,todeterminethefailurlem0deandcausesofthecomponentsofthespindlesystemofCNCmachinetools,andfurthercalculatethedamagede_eeofeachcorn-ponent·Finally,thedamagedegreeprovidesthereferenceforequipmentrepairstrategy.Keywords:CNCMachinetools,FMECA,Spi
4、ndlesystemdoi:10.3969/j.issn.1001—3881.2015.12.024Documentcode:ACLCnumber:TH17causesoffailure,todeterminetheextentofdamage1Introductioneachcomponentpart,whichhastargetedtheestab.1ishmentofCNCspindlerepairstrategyisimportant.CNCmachinetoolsisacomplexrepairablesystemFMECAisFailureModes,Effec
5、tsandCriticalitvA.[1],spindlesystemisthekeysubsystemsofCNCnalysis,includingfaultmodeandeffectanalysismachinetools.Theperformanceofspindlesystemdi—(FMEA)andHazardAnalysis(CA).FMECAisarectlyaffectstheperformanceofthemachines,andbottom—uDsummarizedanalysismethodwhichisthemotionaccuracydirectl
6、yaffectsmachiningaceura.classedbytheseverityofthefailuremodeandproba—cy.Whenthespindlesystemfails.ithaslotsoffail—bilityofoccurrenceofthefailure『2].Theuseofureandhascomparisonofasinglefailurephenome.FM。ECAisfoundtheweaklinkofproductionthatin.non.Thecommonfailureincludenotturnthespindle.clu
7、deinproductiondesignproductandoperate.,spindlejog,notATC,servoalarm,PLCalarm,hy.FMECAcanalsoprovideevidenceforR(reliability).draulicsystemalarm,lackofprecision,spindleM(maintainability),S(security),T(testability),Snoise,crashesetc.Thefailuremaybestructuralde—(
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