主軸直驅(qū)式車床熱特性分析與優(yōu)化設(shè)計(jì).pdf

1、重慶大學(xué)碩士學(xué)位論文主軸直驅(qū)式車床熱特性分析與優(yōu)化設(shè)計(jì)姓名：張博申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：機(jī)械制造及其自動(dòng)化指導(dǎo)教師：張根保201005IIIABSTRACTDirectdrivelathewithbuiltinmotspindlecomponentscompletelyabolishedalltheintermediatelinkswhichbetweenthewkingpartstothemot.Thespindleisdrovedd

2、irectlybythemotturningmotionsothatthetransmissionlengthofthelathisreducedtozero.Thusachievealathe“zerotransmission“.Directdrivelathenotonlytotallyreducestheeffectofthegeometryerronthemachiningprecisionbutalsoavoidstheeff

3、ectofthethermalerrfromthegeartransmissionstructureonthemachiningprecision.Howevertheeffectoftheheatonthemachiningprecisionwhichisfromelectromotbearingsooncan’tbeeliminatedonthedirectdrivelathe.Basedonthestudyonthestructu

4、reofspindledirectdriveCNClatheCMK0220thispaperanalyzestheheatsourcethewayofthermaltransfersoonfocusingonthepointsofsimulationanalysisexperimentalresearchontotalthermaldefmationofthemachinetoolcausedbybuiltinmotspindle.Me

5、overoptimizationdesignofmachinetoolthermalpropertiesiscarriedout.Thestudycanalsoprovidethefoundationsfotherrelatedresearchesonthermalpropertiesofdirectdrivelathes.Firstlythebasictheiesofmachinetoolthermalanalysisareintro

6、ducedinthepaperincludingthethreewaysofheattransferthecauseofthermalstrain.Thispaperliststhethermoelasticequationofthermalstressitssolutionthecalculationoftemperaturefieldcoupledfieldfiniteelementtheyareoutlined.Secondlyt

7、hepaperestablishestheheatflowmodelofwholemachinetoolanalyzesthermalpropertiesofdirectdrivelatheonthebasisofresearchesonthestructureoflathemotizedspindle.Thermalacteristicsofdirectdrivelatheincludeheatsourceheatsinktheway

8、ofthermaltransfercalculationofthermaltransfercalculationofheat.Analysisofheatsourceheatsinkisbasisfthermalanalysisbasisonmachinetool.Thermalacteristicsexperimentalresearchbasedondirectdrivelathearestudiedonprimarilyinthe

9、paper.Accdingtotheanalysiscalculationofmachinetoolthermalpropertiesusingthesoftwareonthedirectdrivelathemachinetogetasimulatedtemperaturefield.Afterexperimentalverificationofthepreliminaryresultoftemperaturemodelwascarri