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1、机修钳工试题（Mechanicalfitterexaminationquestions）Mechanicalfitter,seniortechnician,theoreticalknowledge,simulatedtestpaperMattersneedingattention1,examinationtime:120minutes.2.Firstofall,pleasefillinyourname,ticketnumberandthenameoftheunitintheenclosedformofthetestpaper.3.Pleasereadthequestio
2、nsandanswerscarefully.Fillinyouranswersintheprescribedplaces.4,don'twriteonthepaperdrawing,donotfillinrelatedcontentinstandardsealarea.123456totalscoresharingScoreScoreRatersFillintheblanks(firstto20).Pleasefillintheblanksintheblankswiththecorrectanswers.1pointspergame,20points.)1.、aprec
3、isedetectorconsistingoftwohorizontalsensorsandaliquidcrystaldisplaywithcapacitivesensors.2.,quenchingandtempering,heattreatmentisactuallyafterquenching.3.statorofthree-phasecageasynchronousmotorisusedtoproduce.4.CNCmachinetoolsaregenerallycomposedofnumericalcontroldevice,feedservosystem,
4、machinetoolbodyanditsauxiliarydevice.The5.closedloopfeedservosystemismorethantheopen-loopfeedservosystem.6.inthepositioningaccuracyandrepeatedpositioningaccuracyofCNCmachinetools,themostimportantfactorsarethemechanicalstructureandthereversegaperror.7.thebiggestdifferencebetweenmachiningc
5、enterandCNCmachinetoolsisthatthemachiningcenterhastheabilityofautomaticexchange.8."doublecharacteristicanalysis"faultdiagnosistechnologydividesthevibrationfaultsignalintofaultsignalandimpactfaultsignal.9.theabilityofasystem,amechanicaldevice,oracomponenttomaintainandperformspecifiedfunct
6、ionswithinspecifiedoperatingconditionsandwithinaspecifiedtimeiscalled.10.processcapabilitymeansthattheprocessisundercontrol.Theobjectofqualitycontrolinthe11.processis.12.thethreeelementsofequipmentmaintenancerefertothemaintainabilityofequipmentandthequalityandtechnologyofmaintenanceperso
7、nnel,.13.intheunitsthatmakeupthesystem,aslongasonefails,thesystemcannotfunctionasspecified,andmostmechanicaltransmissionsystemsarepartofthesystem.14.isafast,convenientandeconomicalinstrumentfordetectingthetwoaxislinkageperformanceofNCmachinetools.15.themainworkofproductio
