7第7章 (1/2)

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LatheTurningTrainingLog





Theseveral-dayturningtraininghascometoasuccessfulconclusion.Duringthispractice,Isystematicallylearnedaboutthestructuralprinciples,modelparameters,basicoperationsofordinarylathes,aswellascoreknowledgeofmetalcuttingprocessing.Startingfromgettingfamiliarwithlatheequipmentandmemorizingthecodingrulesoflathemodels,tomasteringthethreecuttingparametersandvariousprocessingtechnologies,andfurtherindependentlycompletingbasicpracticalproceduresincludingdrilling,externalturning,threadcuttingandknurling,Ihavenotonlyconsolidatedtheprofessionaltheoreticalfoundationofmechanicalprocessing,butalsoimprovedmypracticaloperationcapabilities.Ihavedeeplyrealizedtherigorous,preciseandstandardizedcorerequirementsofthemechanicalprocessingindustry.Iherebyrecordthestudies,practicaloperationsandinsightsofthisturningtrainingindetailasfollows.





Intheinitialstageofthetraining,theteacherfirstledustoconducttheoreticalcognitionoflatheequipment,focusingonexplainingthemodelcompilationrulesofordinaryhorizontallathes.Thisisthefundamentalcoreknowledgeforbeginnersinturning,andalsoakeycontentIstrivedtomasterthroughoutthetraining.Previously,Ihadnounderstandingoflathemodelcodes.Throughsystematiclearning,Ifullygraspedthecodingmeaningsoftwoclassichorizontallathes,theC620-1andCA6140,andclarifiedthedifferencesbetweenoldandnewmodelsaswellastheirdisparitiesinequipmentperformance.





TheC620-1isatraditionalold-fashionedhorizontallatheandaclassicprocessingequipmentwidelyusedinfactoriesinthepast.Initsmodelcode,theinitialletter"C"isthegeneralcodeforlathes,representingthatthemachinetoolcategoryislathe;thedigit"6"standsfortheequipmentstructuralform,i.e.,horizontallathe,whichdistinguisheshorizontallathesfromverticalones;thenumber"20"referstothecoreparameterofthelathe,namelythemaximummachiningradiusfromthelathebedsurfacetothespindle,whichdeterminesthemaximummachiningsizerangeoftheequipment.Thehorizontallineinthemodelindicatesthatthismachineisanoriginalbasicmodel,andthetrailingdigit"1"meanstheequipmenthasundergoneonestructuralimprovement.Comparedwithnew-stylelathes,theoldC620-1featuresasimplestructureandbasicfunctions.Restrictedbyitsmechanicallayout,itsupportsanarrowrangeofprocessingmaterialsandlimitedmachiningdiameters.Besides,itisequippedwithfewspindlespeedgearswithlowspeedadjustmentprecision,resultinginpoormachiningaccuracyandlowworkingefficiency.Atpresent,itismostlyappliedtosimpleroughmachiningtrainingandbasicoperationsinoutdatedworkshops.





Incontrast,theCA6140isthemainstreamnewhorizontallathefortrainingandindustrialproductionatpresent,withfarsuperiorperformancetotheoutdatedC620-1.Initsmodel,"C"stillservesasthelathecode,whiletheletter"A"representsamajorstructuralupgrade?anoptimizedandredevelopedversionbasedonthebasicmodel,whichgreatlyimprovesthemechanicallayout,transmissionsystemandprecisionperformanceoftheequipment.Thedigitcombin--


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