CNCTurningandMilling(Advanced)TianjinLightIndustryVocationalandTechnicalCollegeCurriculumResourceConstructionProjectTableofContents1234Project3CrankTurningProgrammingandMachiningTrainingProject2PumpbodyturningprogrammingandmachiningtrainingProject1CheckvalveturningprogrammingandmachiningtrainingProject4Supportseatmillingprogrammingandprocessingtraining65Project6CrankconnectingrodmillingprogrammingandmachiningtrainingProject5BasemillingprogrammingandmachiningtrainingTask3SoftwareprogrammingProject1CheckvalveturningprogrammingandmachiningtrainingTask2ProcesspreparationTask1:LearnthekeyknowledgepointsTask1:Learnthekeyknowledgepoints123IntroductiontothebasicfunctionsofCNClathesBasicoperationsIntroductiontothebasicconceptsofCNClathe465CNClathetoolmagazinesetupBasicInstructionsCNClatherearsetting06BasicInstructionsTask1:Learnthekeyknowledgepoints1.6BasicInstructions1.6.1TurningroughingThisfunctionisusedtorealizetheroughturningoftheoutercontoursurface,innercontoursurfaceandendfaceoftheworkpiece,andisusedtoquicklyremovetheexcesspartofthestock.Figure1.25TurningroughingparametersTask1:LearnthekeyknowledgepointsWhendoingcontourroughturning,itisnecessarytodeterminethecontourtobemachinedandtheoutlineoftheblank,thecontourtobeprocessedisthesurfaceprofileoftheworkpieceafterprocessing,andthecontouroftheblankisthesurfacecontouroftheblankbeforeprocessing.Theendsofthemachinedprofileandthestockprofileareconnected,andtogethertheyformaclosedmachiningareawherethematerialismachinedandremoved.Themachinedprofileandthestockprofilecannotbeclosedorself-intersectedseparately.1.6BasicInstructions1.6.1TurningroughingTask1:LearnthekeyknowledgepointsClickthe"MachiningParameters"tabinthedialogboxtoenterthemachiningparametertable.Theprocessingparametertableismainlyusedtolimitvariousprocessconditionsandprocessingmethodsinroughturning.1.6BasicInstructions1.6.2ProcessingparametersTask1:LearnthekeyknowledgepointsThemeaningofeachprocessingparameterisdescribedasfollows:1.Machinedsurfacetype:Outercontour:Theoutercontourisprocessedbytheoutercontourturningtool,andthedefaultmachiningdirectionangleis180degrees.Innercontour:Theinnercontourismachinedwithaninnercontourturningtool,andthedefaultmachiningdirectionangleis180degrees.Carendface:Atthistime,thedefaultmachiningdirectionshouldbeperpendiculartotheX-axisofthesystem,thatis,themachiningangleis-90degreesor270degrees.1.6BasicInstructions1.6.2ProcessingparametersTask1:Learnthekeyknowledgepoints2.Processingparameters:Machiningangle:theanglebetweenthecuttingdirectionofthetoolandthepositivedirectionoftheZ-axisofthemachinetool(thepositivedirectionofthesoftwaresystemX).Cuttingrowspacing:Thedepthofplungebetweenrows,thedistancebetweentwoadjacentcuttingrows.Machiningallowance:Theremainingamountofthepartofthesurfacetobemachinedthatisnotmachinedaftermachining(comparedwiththefinalmachiningresult).Machiningaccuracy:Userscancontrolthemachiningaccuracyaccordingtotheirneeds.Forstraightlinesandarcsinthecontours,themachinecanbemachinedprecisely;Forthecontourcomposedofsplinecurves,thesystemwillconvertthesplineintostraightsegmentsaccordingtothegivenaccuracytomeettheuser'srequiredmachiningaccuracy.1.6BasicInstructions1.6.2ProcessingparametersTask1:Learnthekeyknowledgepoints3.CornerTransitionMethod:Arc:Thetransitionofthetoolfromonesideoftheprofiletotheotherwhenthecuttingprocessencountersacorner.Sharpcorners:Sharpcornersareusedtotransitionthetoolfromonesideoftheprofiletotheotherwhenthecuttingprocessencountersacorner.4.Splinefittingmethod:StraightLine:Thesplineinthemachiningprofileisfittedwithstraightsegmentsaccordingtothegivenmachiningaccuracy.Arc:Thesplineinthemachiningprofileisfittedwitharcsegmentsaccordingtothegivenmachiningaccuracy.1.6BasicInstructions1.6.2ProcessingparametersTask1:Learnthekeyknowledgepoints4.Reversepass:No:Thetoolpassesinthedefaultdirection,thatis,thetoolmovesfromtheZ-axisofthemachineinthepositivedirectiontotheZ-axisinthenegativedirection.Yes:Thetoolpassesintheoppositedirectiontothedefaultdirection.5.DetailedInterferenceCheck:No:Assumingthattheinterferenceangleofthefrontandrearofthetoolis0degrees,thegroovepartisnotmachinedtoensurethatthecuttingtrajectoryhasnorakeangleandbottomcuttinginterference.Yes:Whenmachiningthegroove,checkwhetherthereisinterferencebetweentherakeangleandtheundercutofthetoolinthemachiningwiththedefinedinterferenceangle,andgenerateaninterference-freecuttingtrajectoryaccordingtothedefinedinterferenceangle.1.6BasicInstructions1.6.2ProcessingparametersTask1:Learnthekeyknowledgepoints6.Followthecontourwhenretracting:No:Thetoolpositionisdirectlyadvancedandretractedatthebeginningandendoftherow,andthecontourbetweentherowsisnotprocessed.Yes:Ifthereisasectionoftheprofilebetweenthetwotoolrowrows,themachiningoftheinter-rowprofileisaddedbeforeandafterthenexttoolrowrow.7.TipRadiusCompensation:Radiuscompensationistakenintoaccountwhenprogramming:Whengeneratingthemachiningtrajectory,thesystemcalculatescompensationbasedonthetipradiusofthetoolcurrentlyused(programmedintermsofimaginarytippoints).Thegeneratedcodeistheonethattakesintoaccounttheradiuscompensation,anddoesnotrequirethemachinetocompensateforthetipradius.Radiuscompensationbythemachinetool:Whengeneratingthemachiningtrajectory,itisassumedthatthetipradiusis0,andthetipradiusisprogrammedaccordingtotheprofile,andthetipradiuscompensationcalculationisnotperformed.Thegeneratedcodeshouldbeusedinactualmachiningwithacompensationvaluespecifiedbythemachinebasedontheactualtipradius.1.6BasicInstructions1.6.2ProcessingparametersTask1:Learnthekeyknowledgepoints8.Interferenceangle:Enteringangleinterferenceangle:Whendoingthefrontangleinterferencecheck,determinetheangleoftheinterferencetest.Interferenceangleofthesecondarydeclinationangle:Whendoingtheundercutinterferenceinspection,determinetheangleoftheinterferenceinspection.AvailablewhentheAllowUndercutoptionischecked.1.6BasicInstructions1.6.2ProcessingparametersTask1:LearnthekeyknowledgepointsClickthe"AdvanceandRetreatMode"tabinthedialogboxtoentertheparametertableofadvanceandretreatmode.Thisparametertableisusedtosettheadvanceandretractmodeinmachining.1.6BasicInstructions1.6.3AdvanceandretractmodeFig.1.26TurningroughingadvanceandretractmethodTask1