会员注册 | 登录 | 微信快捷登录 支付宝快捷登录 QQ登录 微博登录 | 帮助中心 人人文库renrendoc.com美如初恋!
站内搜索 百度文库

热门搜索: 直缝焊接机 矿井提升机 循环球式转向器图纸 机器人手爪发展史 管道机器人dwg 动平衡试验台设计

外文翻译--数控机床改造.doc外文翻译--数控机床改造.doc -- 5 元

宽屏显示 收藏 分享

资源预览需要最新版本的Flash Player支持。
您尚未安装或版本过低,建议您

TheNumericalControlEngineBedTransformsHarveyB.MackeyFirstnumericalcontrolsystemdevelopmentsummarybriefhistoryandtendencyIn1946thefirstelectronicaccountingmachinewasbornintheworld,thisindicatedthehumanitycreatedhasbeenpossibletostrengthenandpartiallytoreplacethementallaborthetool.Itwiththehumanitythesewhichintheagriculture,theindustrysocietycreatedonlyisstrengthensthephysicallaborthetooltocompare,gotupthequantitiveleap,enteredtheinformationsocietyforthehumanitytolaythefoundation.After6years,in1952,computertechnologyappliedtotheenginebed,thefirstnumericalcontrolenginebedwereborninUS.Fromthistimeon,thetraditionalenginebedhashadthearcherytargetchange.Sincenearlyhalfcentury,thenumericalcontrolsystemhasexperiencedtwostagesandsixgenerationofdevelopment.1.1NumericalcontrolNCstage19521970Theearlycomputeroperatingspeedislow,wasnotbigtothensciencecomputationandthedataprocessinginfluence,butcouldnotadapttheenginebedrealtimecontrolrequest.Thepeoplecannotbutusenumerallogiccircuittobuildtobecomeanenginebedspecialpurposecomputertotakethenumericalcontrolsystem,iscalledthehardwareconnectionnumericalcontrolHARDWIREDNC,JianChengweinumericalcontrolNC.Alongwiththeprimarydevicedevelopment,thisstagehashadbeenthroughrepeatedlythreegenerations,namely1952firstgenerationofelectrontube1959secondgenerationoftransistor1965thirdgenerationsmallscaleintegrationelectriccircuit.1.2ComputernumericalcontrolCNCstagein1970presentIn1970,thegeneralminicomputeralreadyappearedandthemassproduction.Thereupontransplantsittakesthenumericalcontrolsystemthecorepart,fromthistimeonenteredthecomputernumericalcontrolCNCthestagewhichshouldhavecomputerinfrontofthegeneraltwocharacterstoabbreviate.In1971,AmericanINTELCorporationintheworldfirsttimethecomputertwomostcorespartlogicunitsandthecontroller,usedthelargescaleintegratedcircuittechnologyintegrationontogetherthechip,calleditthemicroprocessorMICROPROCESSOR,alsomightbecalledthecentralprocessingelementtobecalledCPU.Themicroprocessorisappliedto1974inthenumericalcontrolsystem.Thisisbecauseminicomputerfunctiontoostrong,controlledanenginebedabilitytohavewealthilythereforeonceusesincontrollingthemultiTaiwanenginebedatthattime,calleditgroupcontrol,wasinferiortousedthemicroprocessoreconomytobereasonable.Moreoverthensmallmachinereliabilitywasnotideal.Theearlymicroprocessorspeedandthefunctionalthoughinsufficientlyarealsohigh,butmaysolvethroughthemultiprocessorstructure.Becausethemicroprocessoristhegeneralpurposecalculatorcorepart,thereforestillwascalledthecomputernumericalcontrol.In1990,PCmachinepersonalcomputer,domesticcustomhadcalledmicrocomputertheperformancehasdevelopedtotheveryhighstage,maysatisfiedlytakethenumericalcontrolsystemcoreparttherequest.ThenumericalcontrolsystemhenceforthenteredbasedonthePCstage.Inbrief,thecomputernumericalcontrolstagehasalsoexperiencedthreegenerations.Namely1970fourthgenerationofminicomputer1974fivedynastiesmicroprocessorand1990sixthgenerationoverseaswascalledPCBASEDbasedonPC.Alsomustpointout,althoughoverseasalreadyrenamedasthecomputernumericalcontrolnamelyCNC.Alsomustpointout,althoughoverseasalreadyrenamedasthecomputernumericalcontrolnamelyCNC,butourcountrystillthecustomcalledthenumericalcontrolNC.Thereforewedailysaynumericalcontrol,themateriallyalreadywasreferstocomputernumericalcontrol.1.3thenumericalcontrolfuturewilldeveloptendency1.3.1openstylecontinuesto,todevelopbasedonthePCsixthgenerationofdirectionThesoftwareandhardwareresourceshaswhichbasedonPCarerichandsoonthecharacteristic,themorenumericalcontrolsserialproductionfactorycanstepontothispath.UsesPCmachinetotakeatleastitsfrontendmachine,processesthemanmachinecontactsurface,theprogramming,theassociationQuestionandsoonnetcorrespondence,undertakesthenumericalcontroldutybytheoriginalsystem.PCmachinehasthefriendlymanmachinecontactsurface,willpopularizetoallnumericalcontrolssystem.Thelongdistancecommunication,thelongdistancediagnosisandtheservicewillbemorecommon.1.3.2approachesandthehighaccuracydevelopmentThisisadaptstheenginebedtobehighspeedandthehighaccuracydirectionneedtodevelop.1.3.3developstotheintellectualizeddirectionAlongwiththeartificialintelligenceinthecomputerdomainunceasingseepageandthedevelopment,thenumericalcontrolsystemintellectualizeddegreeunceasinglywillenhance.1appliestheadaptivecontroltechnologyThenumericalcontrolsystemcanexamineintheprocesssomeimportantinformation,andtheautomaticcontrolsystemrelatedparameter,achievestheimprovementsystemrunningstatusthegoal.2introducestheexpertsysteminstructionprocessingTheskilledworkerandexpertsexperience,theprocessinggeneralruleandthespecialrulestoreinthesystem,takethecraftparameterdatabaseasthestrut,theestablishmenthastheartificialintelligencetheexpertsystem.3introducesthebreakdowntodiagnosetheexpertsystem4intellectualizednumeralservodriveMaythroughtheautomaticdiagnosisload,buttheautomaticcontrolparameter,causestheactuationsystemtoobtainthebestmovement.Second,enginebednumericalcontroltransformationnecessity2.1microscopiclooksatthetransformationthenecessityFromonmicroscopiclookedbelowthat,thenumericalcontrolenginebedhastheprominentsuperioritycomparedtothetraditionalenginebed,moreoverthesesuperioritycomefromthecomputermightwhichthenumericalcontrolsystemcontains.2.1.1mayprocessthetraditionalenginebedcannotprocessthecurve,thecurvedsurfaceandsoonthecomplexcomponents.Becausethecomputerhastheexcellentoperationability,maytheinstantaccuratelycalculateeachcoordinateaxisinstanttobesupposedthemovementphysiologicalloadofexercise,thereforemayturnroundthesynthesiscomplexcurveorthecurvedsurface.2.1.2mayrealizetheprocessingautomation,moreoveristheflexibleautomation,thustheefficiencymayenhance37timescomparedtothetraditionalenginebed.Becausethecomputerhasthememoryandthememoryproperty,maytheprocedurewhichinputsrememberandsave,thentheorderwhichstipulatedaccordingtotheprocedureautomaticcarriesout,thusrealizationautomation.Thenumericalcontrolenginebedsolongasreplacesaprocedure,mayrealizeanotherworkpieceprocessingautomation,thuscausesthesingleunitandthesmallbatchofproductioncanautomate,thereforeiscalledhasrealizedflexibleautomation.2.1.3processingscomponentsprecisionhigh,sizedispersiondegreesmall,makestheassemblytobeeasy,nolongerneedstomakerepairs.2.1.4mayrealizethemultiworkingprocedurescentralism,reducesthecomponentsinenginebedbetweenfrequenttransporting.2.1.5hasautoalarm,theautomaticmonitoring,automaticcompensationandsoonthemanykindsofautonomyfunction,thusmayrealizelongtimenobodytosafeguardtheprocessing.2.1.6advantagewhichderivesbyabovefive.ForexampleReducedworkerslaborintensity,savedthelaborforceapersontobepossibletosafeguardthemultiTaiwanenginebed,reducedtheworkclothes,reducedthenewproducttrialmanufacturingcycleandtheproductioncycle,mighttothemarketdemandmakerapidreactionandsoon.Abovethesesuperiorityarethepredecessorcannotimagine,isanextremelysignificantbreakthrough.Inaddition,theenginebednumericalcontrolcarriesoutFMCflexiblemanufactureunit,FMSflexiblemanufacturesystemaswellasCIMScomputerintegrationmanufacturesystemandsoontheenterprisebecominganinformationbasedsocietytransformationfoundation.Thenumericalcontroltechnologyalreadybecamethemanufacturingindustryautomationthecoretechnologyandthefoundationtechnology.2.2greatwatchesthetransformationthenecessityFromonmacroscopiclookedthat,theindustrydevelopedcountryarmedforces,theairplaneweaponindustry,intheendofthe70s,atthebeginningofthe80sstartedthelargescaleapplicationnumericalcontrolenginebed.Itsessenceis,usestheinformationtechnologytothetraditionalindustryincludingthearmedforces,airplaneweaponindustrycarriesonthetechnologicaltransformations.Exceptthatusesoutsidethenumericalcontrolenginebed,FMC,FMSinthemanufactureprocess,butalsoincludesintheproductdevelopmentcarriesoutCAD,CAE,CAM,thehypothesizedmanufactureaswellascarriesoutMISintheproductionmanagementmanagementinformationsystem,CIMSandsoon.Aswellasincreasestheinformationtechnologyinitsproductionproduct,includingartificialintelligenceandsooncontent.Becauseusestheinformationtechnologytothecountryforeigntroops,theairplaneweaponindustrycarriesonthethoroughtransformationtocallitbecominganinformationbasedsociety,finallycausesthemtheproductintheinternationalmilitarygoodsandinthegoodsforcivilianusemarketthecompetitivepowergreatlyistheenhancement.Butweintheinformationtechnologytransformationtraditionindustryaspectcomparedtothedevelopedcountrytofallbehindapproximatelyfor20years.Likeinourcountryenginebedcapacity,numericalcontrolenginebedproportionnumericalcontrolrateto1995onlythen1.9,butJapanhasreached20.8in1994,thereforeeveryyearhasthemassivemechanicalandelectricalproductsimport.Thisalsoonfromonmacroscopicexplainedtheenginebednumericalcontroltransformationnecessity.Thord,thenumericalcontroltransformationcontentandsuperiorlylacks3.1TransformationindustrystartingInUS,JapanandGermanyandsoonthedevelopedcountry,theirenginebedtransformstooktheneweconomicalgrowthprofession,thrivesabundantly,isoccupyingthegoldenage.Asaresultoftheenginebedaswellasthetechnicalunceasingprogress,theenginebedtransformationistheeternaltopic.Ourcountrysenginebedtransformationindustry,alsoentersfromtheoldprofessiontobythenumericalcontroltechnologyprimarilynewprofession.InUS,Japan,Germany,havethebroadmarketwiththenumericalcontroltechnologicaltransformationsenginebedandtheproductionline,hasformedtheenginebedandtheproductionlinenumericalcontroltransformationnewprofession.InUS,theenginebedtransformationindustryiscalledtheenginebedregenerationRemanufacturingindustry.IsengagedintheregenerationindustryfamouscompanytoincludeTheBertscheengineeringfirm,theaytonenginebedcompany,DevliegBullavdarevaluableservesthegroup,theUSequipmentcompanyandsoon.TheAmericanvaluablecompanyhassetupthecompanyinChina.InJapan,theenginebedtransformationindustryiscalledtheenginebedtoreequipRetrofittingindustry.IsengagedinthereequipmentindustryfamouscompanytoincludeBigindentationprojectgroup,hillockthreemechanicalcompanies,thousandsubstitutefieldslabormachinecompany,wildengineeringfirm,shorefieldengineeringfirm,mountainthisengineeringfirmandsoon.3.2NumericalcontroltransformationcontentTheenginebedandtheproductionlinenumericalcontroltransformationmaincontenthasfollowingseveralpointsFirstisextensivelyrecoversthefunction,totheenginebed,theproductionlinehasthebreakdownpartiallytocarryonthediagnosisandtherestorationSecondisNC,theaddendrevealstheinstallmentontheordinaryenginebed,oraddsthenumericalcontrolsystem,transformstheNCenginebed,theCNCenginebedThirdisrenovates,forincreasestheprecision,theefficiencyandtheautomaticity,tothemachinery,theelectricitypartiallycarriesonrenovates,reassemblestheprocessingtothemachinepart,extensivelyrecoverstheprecisionDoesnotsatisfytheproductionrequesttoittheCNCsystemtocarryontherenewalbynewestCNCFourthisthetechnologyrenewsorthetechnicalinnovation,forenhancestheperformanceorthescale,orinordertousethenewcraft,thenewtechnology,carriesonthebigscaleintheoriginalfoundationthetechnologytoreneworthetechnicalinnovation,thegreatscoperaisesthelevelandthescalerenewaltransformation.Thenewelectricalsystemtransformsafter,howcarriesonthedebuggingaswellasthedeterminationreasonableapprovalstandard,alsoisthetechnologypreparatoryworkimportantlink.Thedebuggingworkinvolvesthemachinery,thehydraulicpressure,theelectricity,thecontrol,andsoon,thereforemustcarryonbytheprojectpersonincharge,otherpersonnelcoordinate.Thedebuggingstepmayconformtosimplicitytonumerous,frominfancytomaturity,carriesonfromoutsidetoin,afteralsomaythepartialoverallsituation,afterfirstthesubsystemthe3.3Thenumericalcontroltransformationsuperiorlylacks3.3.1reducedinvestmentcosts,thedateofdeliveryareshortWithpurchasesthenewenginebedtocompare,maysave6080expensegenerally,thetransformationexpenseislow.Largescale,thespecialenginebedespeciallyisspeciallyobvious.Thecommonlargescaleenginebedtransforms,onlyspendsthenewenginebedpurchaseexpense1/3,thedateofdeliveryisshort.Butsomepeculiarcircumstances,likethehighspeedmainaxle,thetrayautomaticswitchingunitmanufactureandtheinstallmenttoorequiresalotofwork,costsagreatdealofmoney,oftentransformsthecosttoenhance23times,withpurchasesthenewenginebedtocompare,onlycaneconomicalinvestabout50.3.3.2machinecapabilitystablearereliable,thestructureislimitedUsesfoundationandsoonlathebed,columnallisheavybutthefirmcastingcomponent,butisnotthatkindofweldingcomponent,afterthetransformationenginebedperformancehigh,thequalityisgood,maytakethenewequipmentcontinuestousemanyyears.Butreceivestheoriginalmechanismthelimit,notsuitablymakestheunprecedentedtransformation.3.3.3familiarunderstoodtheequipment,isadvantageousfortheoperationserviceWhenpurchasesthenewequipment,didnotunderstandwhetherthenewequipmentcansatisfyitsprocessingrequest.Thetransformationthenotherwise,maypreciselycalculatetheenginebedtheprocessingabilityMoreover,becausemanyyearsuse,theoperatoralreadyunderstoodtotheenginebedcharacteristic,usesandservicestheaspecttotrainthetimeintheoperationshort,effectiveisquick.Thetransformationenginebedassoonasinstalls,mayrealizethecapacityloadrevolution.3.3.4mayfullyusetheexistingconditionMayfullyusetheexistingground,doesnotneedtolikebuyswhenthenewequipmentsuchtohaveretoconstructtheground.3.3.5mayusethenewestcontroltechnologyenhancestheproductionequipmenttheautomatedlevelandtheefficiency,improvestheequipmentqualityandthescale,alterstotheoldenginebednowthehorizontalenginebed.Fourth,numericalcontrolsystemchoiceWhenthenumericalcontrolsystemmainlyhasthreekindoftypes,thetransformation,shouldactaccordingtothespecialdetailstocarryonthechoice.4.1StepbystepstheopensystemwhichtheelectricalmachinerydrivesThissystemservodrivemainlyisstepbystepstheelectricalmachinery,thepowerstepbystepsthe
编号:201311171625217265    大小:94.00KB    格式:DOC    上传时间:2013-11-17
  【编辑】
5
关 键 词:
教育专区 外文翻译 精品文档 外文翻译
温馨提示:
1: 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
2: 本站的文档不包含任何第三方提供的附件图纸等,如果需要附件,请联系上传者。文件的所有权益归上传用户所有。
3.本站RAR压缩包中若带图纸,网页内容里面会有图纸预览,若没有图纸预览就没有图纸。
4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
5. 人人文库网仅提供交流平台,并不能对任何下载内容负责。
6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。
  人人文库网所有资源均是用户自行上传分享,仅供网友学习交流,未经上传用户书面授权,请勿作他用。
0条评论

还可以输入200字符

暂无评论,赶快抢占沙发吧。

当前资源信息

4.0
 
(2人评价)
浏览:13次
英文资料库上传于2013-11-17

官方联系方式

客服手机:13961746681   
2:不支持迅雷下载,请使用浏览器下载   
3:不支持QQ浏览器下载,请用其他浏览器   
4:下载后的文档和图纸-无水印   
5:文档经过压缩,下载后原文更清晰   

相关资源

相关资源

相关搜索

教育专区   外文翻译   精品文档   外文翻译  
关于我们 - 网站声明 - 网站地图 - 友情链接 - 网站客服客服 - 联系我们
copyright@ 2015-2017 人人文库网网站版权所有
苏ICP备12009002号-5