壓鑄機(jī)電液伺服系統(tǒng)研究.pdf

1、中文題名壓堡塑l電澶翅目匱丕統(tǒng)嬰塞英文題名墨地魚YQ旦星!曼也Q：虹壘￡嫂!i魚曼迎Q盟!曼塑魚!魚i￡曼墾墮望g嬰墾璺bi衛(wèi)星博士后姓名丑瞳武流動站(一級學(xué)科)名稱扭越王猩一專業(yè)(二級學(xué)科)名稱扭撼電蘭猩合作教授旦筮委研究_T作起始時問研究工作期滿時間提交報告日期ABSTRACTPressmouldmethodisoneofthemostirllponamprocessingtecllIlics，whichproduceprccise

2、andimerchangeabiepartsinmassproductionniswjIdlyappIiedtoaⅢomotiVe，electronics，lightfittingandmotorcyclemdu蚰alandmakes舒ea圭senseinna吐onaleconomylnjectionrnechallismisoneofthekeyf如torsfbrrealizingmediecastmgprocessingp煳eter

3、sandmakedirectin=fluencesontbesumlcequal吼dimensjonaccuracy，mechanicalpmper移ofdiec酗tingpa如ThediecastingmachinedrivedbyservohydmmicsystemcancontroIt11ediecastingprocessingpar啪etersaccuralelya11drapidly，whichist11edevelopme

4、m仃endofdiecasti。礓machineThecoldch鋤bermagnesiumdiecastingmachineistalcenasatypica】subjectinVestlgatedin也ispapetThedynamicperfo咖a11cea11dcloseloopcontr01algorimmof沁shotmechaIlismisinvestigatedInch印ter1，tllefollowingitemsar

5、eoVer“ewed矗rstlyConceptsofpressmouldmetho出Devel叩memandclassiflcationofdiecas廿ngmachine；Con風(fēng)llrationofrealtimecontrolleddiecastingmachine；stateof_meanof1a唱eflowservovalveBasedontheseoverviews，thesigni日canceandaimsofthisdi

6、ssen“onarepresentedPressisoneoft1emostimportamprocessingpar撕etersI門injec廿onmechanism，tbenitrogencylinde‘pressureValve，pressureincreasmgcy王inderandrel砒edoilch鋤befconstimtethepressureincreasiIlgsystem，whjchdecide廿1epressur

7、eincreasjngd”amiccharacteristicsThep猢etersofthesepanscanbeopnmizedbytheoreticalanalysisandsimulationInchapter2，thelatIlsrecmmofpressurevalveusedin勘eD《：C400Mdiec酗tin譬machineisopdmizedandt11epressurei11creaSingdynamicchara

8、cteristicsarestudiedwi也thepistonOfpressureincreaSmgcylindermadebyaluminiuma1】ovor45撐steel_Accordingtothe1atestresearchreportondiecastingprocessing，thevelocityofplungerisrequiredtochangewiththeposltlonofp1吼gerasperacenaln

9、cun，einordertoexhaustaircompletelyAsaresulkthevelocityofplungermustbeclose—loopcontrolledTheclose一100pcontro】a】gorj蚰is幽ekeyfactor船f_mjshthetask’王ncha呻r3，ThemathematfcalmodeJ＆ndsimulationmodelofinjectionsystemareestablish

10、edindividuallybaSedonanalyzingmeoperatjonp—ncipIeofinjec畦onsystemwhichisdrivedbyaservohydraulicsystem，Theclose一100palgorithmisreachedbytheoretjc81analysis，whilethesimulanonisusedtoinvestingitseH色ctTheloadcompensatedalgoT

11、‰m，PIDalgo—thma工1d嘲l(fā)efeedbackalg嘶thmaTeinvestigatedindividuallyandaspecialalgOritllmisputfblwardInchapter4，鰣ofachievementsOfthedisse刪onaresummarizedandthe如rtherrese眥hwork，whichwillbedone，isputfonvard1(eywords：DiecastiI培m