4第4章 (1/2)
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MillingWorkerInternshipLog
Thetwo-weekpracticaltrainingformillinghascometoasuccessfulconclusion.Thisinternshipwascarriedoutintheschool'smechanicaltrainingworkshop.Isystematicallygottoknowandstudiedthebasicstructure,operatingprinciples,processingtechnologiesofhorizontalmillingmachinesandverticalmillingmachines,aswellasworkshopsafetyregulations.Frombeingunfamiliarandnervousaboutmillingequipmentattheverybeginningtobeingabletoindependentlycompletethemillingofsimpleplanes,stepsandgrooveworkpieces,mymechanicaloperationability,processthinkingandawarenessofsafeproductionhavebeengreatlyimproved.Thistrainingallowedmetostepoutoftextbooksandengageinpracticaloperations,andIdeeplyrealizedtherigorous,meticulousandpragmaticprofessionalcharacteristicsofthemechanicalprocessingindustry.Isummarizetheinternshipcontentandexperienceasfollows.
Attheinitialstageoftheinternship,teachersfirstcarriedoutsafetyproductioneducationandtrainingformillingworkers,whichwasthefirstandmostimportantlessonofmechanicalprocessingtraining.Theteacherexplainedindetailtherulesandregulationsofthemillingworkshop,forbiddendangerousoperations,requirementsforwearinglaborprotectionarticlesanddisposalmethodsforsuddenaccidents.Ilearnedthatmillinginvolveshigh-speedcuttingoperations.Thespindleofthemillingmachinerotatesfastandthemillingcutterissharp.Ironfilings,vibrationandnoisewillbegeneratedduringprocessing.Carelessnessmayeasilyleadtosafetyaccidentssuchasscratches,collisionsandclothesbeingrolledintothemachine.Therefore,itismandatorytowearworkclothesandanti-smashingshoeswhenenteringtheworkshop.Wearingjewelryandlettinglonghairexposedareprohibited.Itisnotallowedtoholdworkpiecesbyhandorstrideoverrunningequipmentduringoperation.Specialbrushesmustbeusedtocleanironfilingsaftershutdown,anddirectcontactbyhandisstrictlyforbidden.Throughsafetytraining,Icompletelyabandonedflukementalityandestablishedtheprocessingphilosophyof"safetyfirst,preventionfirst",layingasolidsafetyfoundationforsubsequentpracticaloperations.
Afterthesafetytraining,westartedtolearnaboutmillingmachineequipment,aswellasitsbasicstructureandworkingprinciples.Verticalknee-typemillingmachines,oneofthemostwidelyusedequipmentinmechanicalprocessing,weremainlyadoptedinthistraining.Theteacherexplainedthecorecomponentsofthemillingmachineonebyone,includingthespindle,spindlegearbox,feedgearbox,liftingworktable,crossslide,longitudinalworktable,handwheel,dialgauge,coolingsystemandlubricationsystem.Ifullygraspedthefunctionsofeachcomponent:thespindleclampsthemillingcutterandprovideshigh-speedrotatingpower;thegearboxadjuststhespindlespeedandfeedrate;thethree-axisworktablerealizesthemovementofworkpiecesinlongitudinal,horizontalandverticaldirectionstopreciselycontrolthecuttingpositionanddepth.Meanwhile,Id--
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