銑車復(fù)合加工中心高速電主軸的靜動(dòng)態(tài)特性研究.pdf

1、蘭州理工大學(xué)碩士學(xué)位論文銑車復(fù)合加工中心高速電主軸的靜動(dòng)態(tài)特性研究姓名：崔治國(guó)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：芮執(zhí)元20120609Abstracti∞咄1們ofthe∞mpoundmachiningtechnology，millingtu功ingcompoundmac㈨ngrequireshighe佑ciency’柚dfuncti。nswhichcanadjusttoc。mpleXconditionsthusmeS

2、pi們lesystemofmachinetoolrequiresgoodstaticanddyn：miccha，racterist沁&neperformance0九hemillingturningc。mpoundmachiIling：enters竺1arg：1yde‘erm‘nedby‘hestructuraldesignofthem。torizedspindleandstaticanddynamlccharacteristicsand

3、whicharealsoimportantfact。rst。affectthemach‰ga，ccuracy1’heoptjm娩ationofspindlestmctureandthestudy。fstaticanddynami三ctcteristicsisstrategicallycriticaltoimprovetheperfomanceofthe11111llngturningcompoundmachiningcenters№m，

4、m鈀gr缸甜fac幻rSofmodelingandsimulationofmillingtumingcompoundmotorizedspindleaurepresentedtostudythestaticanddynamiccharacteriSticsofthe：：‘一1趵，Sp妯硼“斛EMbaSedontheSoRwareANSYSinthiStheSiSspeCificⅡe【alISorthethesisareasfollows

5、：【：’_：|lk吼呲m豫10fthemilling‘turningcompoundmotorizedspindleisanalyzed，thesndlc印an觚dthefrontbearingspacingare。ptimizedbytheestablishme二t。j‘wdlmen酊onalm。del。fmotorizedspindle，besides，theinterferencefit。ftheshaRanamotor1Scal

6、culated‘!’s‘a(chǎn)‘1crlgidityofangularc。ntactceramicballbearingsiscalculated，andtheVarlatlon。fstaticrigiditywiththeefiectoftheaxialpreloadisstudiedAlso，m。reac：：u：：L‘ethreedimensionals。lidmodelofthemillingturningc。mp。undmotori

7、zed1們k18established‘hestaticrigidity。fm。torizedspindleiscaJCulatedbystaticfinitetlemen‘a(chǎn)nalys‘sbasedonANSYS，andtheeffectofbearingprel。adonthes吼Icngidityofmotorizedspindleisanalyzed，，【jJ1l：roughdynam‘c療niteelementmodel，th

8、ecriticalspeedofthemllJlng。turnlngcompoundmotorizedspindleisobtainedbyusingANSYScomputationaIanalysisThenatura】frequenciesandmodeshapesofthemotorizedspindl7ar伽m酣bymodalanalysis，theeffectofbearingprcloadonthe。rdcrn砒u===：：

9、q∞ncy酊恤蛐毗0rizedspindleisanalyzed’：時(shí)伽gh也乩姍0nic鋤alysis0fthemotorizedspindie，itsreSponsetothe：盯10d：c內(nèi)托eanditsVariationofthedynamicrigidityare粕alyzedThemaximumdynamlcdlsplacementsoftheleadingendandmiddleoftherotoronspindlear