《精密检测技术》英文课件-任务一 轴承盖检测

《PrecisionMeasurementTechnology》主讲人：赵慧、杨国星TianjinLightIndustryVocationalTechnicalCollegeI

IIIIIIVVVIFundamentalsofCoordinateMeasurementApplication

DimensionalErrorDetectionShapeErrorDetection

DirectionalErrorDetection

PositionalErrorDetection

RunoutErrorDetectionVII

CurveandSurfaceDetectionVIII

ExtendedContentTaskI:BearingCapInspection[TaskIntroduction]Thebearingcappartdrawingisshowninthefigure.Thispartincludesmultipleshapeerroranddimensionalerrorinspectionitems.Thetaskrequirestheuseofacoordinatemeasuringmachine(CMM)toperformtherelevantinspectionsandgenerateaninspectionreport.[RelatedKnowledge]I.FlatnessToleranceShapeToleranceItemsLabelingExampleInterpretationInterpretationofMeaningFlatnessTheflatnesstoleranceoftheuppersurfaceis0.1mm.Theextracted(actual)surfacemustbeconfinedwithintwoparallelplanesspaced0.08mmapart(tolerancevaluet).[RelatedKnowledge]II.RoundnessToleranceShapeToleranceItemsLabelingExampleInterpretationInterpretationofMeaningRoundnessTheroundnesstoleranceoftheconicalandcylindricalsurfacesis0.03.Inanycross-sectionofthecylindricalandconicalsurfaces,theextracted(actual)circumferenceshouldbeconfinedbetweentwocoaxialconcentriccircleswitharadiusdifferenceequalto0.03(tolerancevaluet).[RelatedKnowledge]III.RoundnessofCombinedCirclesFirst,thecirclestobecombinedmustbeindividuallydefined,asshownintheleftdiagram.Then,inthemenubar,clickon"Elements"→"Circle",andanew"Circle"iconwillappearunderthe"Elements"functiontab.Double-clicktoopenit,whichwillbringupthe"Elements"dialogbox.Selectthe"Call"option(asshowninthemiddlediagram),whichwillopenthe"Call"dialogbox.Inthisdialogbox,simultaneouslyselectthecirclestobecombined(asshownintherightdiagram).Clickthe"OK"buttontocompletethecirclecombination.Finally,evaluatetheroundnessofthecombinedcircle(i.e.,thepitchcircleofuniformlydistributedholes).[TaskImplementation]Organizeandnumberthemeasurementitems,asshownintheleftfigure,andassignnumberstothemeasuredelements,asshownintherightfigure.[TaskImplementation]Createameasurementitemtableasshowninthefigure.[TaskImplementation]II.DeterminingtheClampingSchemeInaccordancewiththeprinciplesofworkpiececlamping,adopttheclampingschemeshowninthefiguretoensurethatallelementscanbemeasuredinasinglesetup.[TaskImplementation]III.ProbeSelectionandCalibrationSelecttheL33D3probe,usethe1_A0B0stylus,andproceedwithcalibration.[TaskImplementation]IV.EstablishingtheBaseCoordinateSystem[TaskImplementation]V.CreatingtheSafetyPlaneInthe"SafetyPlane"dialogbox,asshowninthefigure,clickthe"PredefineSafetyPlanefromCADModel"button.Inthepop-up"BoundaryDistance"dialogbox,setthedefaultvalueto10mm.Clickthe"Confirm"buttontocompletethecreationofthesafetyplane.[TaskImplementation]VI.DefiningElementsandStrategiesSerialNumberElementsMeasurementStrategyandEvaluationSettingsRemarks1Plane1Two-layercircularpathscanning,stepsize:0.1mm,filterwavelength:0.8mm,enablefilteringandgrosserrordetection.Segmentedcircularpathreference:COOKBOOK.2Circle1-Circle6Circularpathscanningwithatleast500points,filterparameter:low-passfilter50UPR,enablefilteringandgrosserrordetection.RefertotheCOOKBOOK.3Circle7CallingCircle2-Circle5.Seethesection"RelatedKnowledge/3.CircularityofCombinedCircles"inthistask.[TaskImplementation]VII.DefiningFeatures[TaskImplementation]VII.DefiningFeatures[TaskImplementation]VIII.RunningtheProgramandDebuggingSerialNumberElementSafetyPlaneGroupSafetyDistanceRetractionDistanceProbeMeasuringProbe1Plane1CP+Z05L33D31_A0B02Circle1-Circle6CP+Z02L33D31_A0B03Circle7/////Checkthefivesafetyitems.Settheparametersforthefivesafetyitemsasshowninthetable.[TaskImplementa