《数控车铣加工 高级（英文）》课件-项目6 曲柄连杆铣削编程与加工培训

CNCTurningandMilling(Advanced)TianjinLightIndustryVocationalandTechnicalCollegeCurriculumResourceConstructionProjectTableofContents1234Project3CrankTurningProgrammingandMachiningTraining65Project4SupportseatmillingprogrammingandprocessingtrainingProject5BasemillingprogrammingandmachiningtrainingProject1CheckvalveturningprogrammingandmachiningtrainingProject6CrankconnectingrodmillingprogrammingandmachiningtrainingProject2PumpbodyturningprogrammingandmachiningtrainingProject6CrankconnectingrodmillingprogrammingandmachiningtrainingTask3:ProgrammingtrainingTask1:LearnthekeyknowledgepointsTask2ProcesspreparationTask1:Learnthekeyknowledgepoints1Groovingcutters2Fixturesandauxiliarysupports01GroovingcuttersTask1:Learnthekeyknowledgepoints6.1Slottingcutters1.EndmillsTheendmill(seefigure)isusedtoprocessgroovesandstepsurfaces,etc.,thecutterteethareinthecircumferenceandtheendface,andtheycannotbefedalongtheaxialdirectionwhentheyaregenerallyworking,butwhentheendmillhasanendtooththroughthecenter,itcanbefedaxially.Thecuttingedgehasdouble-edged,three-edged,andfour-edgededges,withadiameterofφ2~φ15mm,andiswidelyusedinplungemilling,high-precisiongroovemachining,etc.6.1.1TypesofgroovingcuttersEndmillsTask1:Learnthekeyknowledgepoints6.1Slottingcutters2.SideandfacemillingcutterSideandfacemillingcutters(seefigure)areusedtomachineavarietyofgrooveandstepsurfaceswithteethonbothsidesandcircumference.Thethree-sidedandsidemillingcuttersusedtocutright-angledcornersorgroovescanbestructurallydividedintostaggeredtoothshapeswithstaggeredcuttingedgesandparalleltoothshapeswithparallelcuttingedges.Side-and-sidecuttersarethemostcommonlyused,whilemis-toothedsideandfacecuttersareusedforgroovemachiningofsteel.Alargenumberofindexabletoolsareoftenusedinseriesproduction,includingsemi-sideandfullsideandfacemills.Fullsideandfacemillingcuttersaremostlyusedforgroovemachining.6.1.1TypesofgroovingcuttersSideandsidemillingcuttersTask1:Learnthekeyknowledgepoints6.1Slottingcutters3.SawblademillingcutterSawbladecutters(seefigure)areusedfordeepgroovesandpartingoffworkpieces,andhavemoreteetharoundthecircumference.Inordertoreducefrictionduringmilling,thereisasecondarydeclinationangleof15′~1°onbothsidesofthecutterteeth.Characteristicsofthesawblademillingcutter:theteethcanberesharpenedseveraltimeswithageargrindingmachine,andthegrindingblademillingcutterhasthesamelifeasthenewsawblademillingcutter.6.1.1TypesofgroovingcuttersSawblademillingcutterTask1:Learnthekeyknowledgepoints6.1Slottingcutters4.T-slotmillingcutterTheT-slotcutter(seepicture)isusedtomilltheT-slot.T-slotmillingcuttercanbedividedintotapershankT-slotmillingcutterandstraightshankT-slotmillingcutter,whichcanbeusedtoprocessT-slotsonvariousmechanicaltablesorotherstructures,andisaspecialtoolforprocessingT-slots,whichcanmilloutT-slotswithrequiredaccuracyatonetime.Theendedgeofthemillingcutterhasasuitablecuttingangle,andthecutterteetharedesignedaccordingtohelicalteethandwrongteeth,sothatthecuttingforceisstableandthecuttingforceissmall.6.1.1TypesofgroovingcuttersT-slotcutterTask1:Learnthekeyknowledgepoints1Groovingcutters2Fixturesandauxiliarysupports02FixturesandauxiliarysupportsTask1:Learnthekeyknowledgepoints6.2FixturesandauxiliarysupportsTheprocessofmakingtheworkpieceoccupythecorrectpositiononthemachinerelativetothetool-positioning,andtheprocessofmaintainingtheaccuratepositionoftheworkpiecebytheactionofexternalforceduringthecuttingprocessofcustomerservice-clamping.Thecomprehensiveiscalledclamping,andtheprocessequipmentiscalledmachinetoolfixture.6.2.1ClassificationofmachinetoolfixturesMachinetoolfixturescanbedividedintotwocategoriesaccordingtothedegreeofgeneralization.1.UniversalfixtureOnlyasmallnumberofpartsneedtobeadjustedorreplaced,whichcanbeusedtoclampdifferentworkpieces.Suchasthree-jawchuck,four-jawchuck,center,flatnosepliers,etc.Thecomplexstructureoftheuniversalfixtureisusedforhigh-volumeproduction,anditisalsosuitableforsingle-piecelow-volumeproduction.2.SpecialfixtureThespecialfixtureisaspecialfixturedesignedandmanufacturedforaworkpieceprocess,whichissimpleinstructure,compact,fastandconvenienttooperate,andthespecialfixtureissuitableforbatchormassproductionofproductfixation.Task2Processpreparation1Partdiagramanalysis2Processdesign01PartdiagramanalysisTask2Processpreparation6.3PartdiagramanalysisAsshowninthefigure,accordingtotherequirementsoftheuseofthepart,C45steelisselectedastheblankmaterialofthispart,andtheblanksizeis65x25x25squarematerial.OneofthemachiningschemesisthatthemillingmachineprocessestheshaftandendfacewithΦ8precision,finishestheholeofΦ8,andmillsoutthecontour.Note:Thispartisamanualoperatingpart,soaftertheprocessisprocessed,theprocessingburrshouldberemovedtoensurethattheacuteangleisfullydulledtoensurethepersonalsafetyoftheuseprocess.CrankconnectingrodpartsdiagramTask2Processpreparation1Partdiagramanalysis2Processdesign02ProcessdesignTask2Processpreparation6.4ProcessdesignCombinedwiththedrivingwheelmachiningprocessoftheprevioustask,drawthecrankconnectingrodprocesscard,andfillinthefollowingtable.MachiningprocesscardProductmodelXSBComponentserialnumberXSB-06Page1

ProductnameSuctionpumpThenameofthecomponentCranklinkageTotal1pagesMaterialgrade45Blankspecifications65*25*25Blankweight

quantity1TheoperationnumberThenameoftheoperationProcesscontentworkshopsectionProcessequipmentman-hour

Quasi-knotSinglepiece5PreparationTheblankispreparedwith65*25*25squarematerialOutsourcingSawingmachine

10MillingTaketheblanksurface65*25astheroughbenchmark,andfinishtheuppersurface.MachiningcentersFlatnosepliers130515MillingFinishingroundbossesMachiningcentersFlatnosepliers

3020MillingFinishingtheoutercontourMachiningcentersVise-versusverniercalipers

20Task2Processpreparation6.4Processdesign25MillingMillingofslotsMachiningcentersFlatnosepliers

530MillingFinishingholesMachiningcentersVise-versusverniercalipers

1535MillingReversemounting,finishingplanesMachiningcentersFlatnosepliersthree-jawchuck

1540MillingFinishingroundbossesMachiningcentersVise-versusverniercalipers

2045cleanCleantheworkpiece,sharpanglesareblunt.clamp

550InspectionInspectthedimensionsoftheworkpieceexamine

5Task2Processpreparation6.4ProcessdesignStepsThecontentofthestepcuttingtoolSFapaeStepman-hours

mobileauxiliary1Workpiecemounting

52MillingplanesΦ40facemillingcutter15004000.5205

3RoughingofroundtablesandflatsurfacesΦ40facemillingcutter15008000.32020

4FinishingroundtablesandflatsurfacesΦ10endmill15006000.1510

5RoughingtheoutercontourΦ40facemillingcutter150060022015