会员注册 | 登录 | 微信快捷登录 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--数控加工工艺.doc外文翻译--数控加工工艺.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

英文原文CNCMachiningProcessFirst,ourcountryshistoryofthedevelopmentofnumericalcontrolsystem1.Ourcountrysince1958,byagroupofresearchinstitutes,collegesanduniversitiesandafewstartedtoCNCMachineToolPlantoftheresearchanddevelopmentsystem.Atthattime,duetothelowlevelofdomesticelectroniccomponents,suchasthedepartmentofeconomicconstraints,lackofalargerdevelopment.2.Inthereformandopeningup,Chinasnumericalcontroltechnologygraduallyachievesubstantialdevelopment.After658185yearstheintroductionofforeigntechnology,758690yearsofthedigestionandabsorptionandtheEighthFiveYearPlan91195yearsNationalOrganizationofscientificandtechnological,thatmakesourcountrysCNCtechnologyhasaqualitativeleapinacceptanceatthattime,throughresearchandidentificationofcountryproductsincludingBeijingEverestsChineseI,centralChinascentralNCIandafewhighendShenyangNationalEngineeringResearchCenterforControlofBlueI,aswellasotherthroughtheNationalQualitySupervisionandTestCentermachinetestNCsystemofqualifieddomesticcompaniessuchasNanjing,fourproducts.3.ChinasCNCmachinetoolmanufacturingindustryinthe80shadthestageofrapiddevelopment,manymachinetoolplantproductsfromtraditionalproductstotheNCtransition.But,generallyspeaking,thetechnologicallevelisnothigh,thequalityofthepoor,sointheearly90sfacingthecountryseconomyfromaplannedeconomytoamarketeconomyandadjustthetransferwentthroughthemostdifficultyearsoftheDepressionperiod,theproductioncapacityatthattimedownto50,morethanfourmonthinventory.From1995,NinthFiveYearPlantoexpanddomesticdemandfromthecountryafterthemachinetoolmarkettostart,soastoreinforcetheapprovalofimportsofCNCequipment,investmentfocusedonsupportforkeynumericalcontrolsystem,equipment,technologiesofCNCequipmenthasplayedasignificantrole,especiallyin1999,thecountrysdefenseindustrytocivilianindustryandthekeytoputtinginalotoftechnicaldepartmentfunds,toenableCNCequipmentmanufacturermarketthriving.Three,CNCTechnologyandEquipmentofcarscutCNCLatheMachiningLathetechnologyandprocessingtechnologysimilarto,butbecauseofCNClatheisafixture,forautomaticprocessingofallfinishturningprocess,whichshouldpayattentiontothefollowingaspects.1.Areasonableselectioncuttingforthehighefficiencymetalcuttingprocessing,theprocessedmaterials,cuttingtools,cuttingconditionsisthethreemajorelements.Thesedeterminetheprocessingtime,toollifeandprocessingquality.Costeffectiveprocessingmethodsmustbeareasonablechoiceofthecuttingconditions.Threeelementsofcuttingconditionscuttingspeed,feedrateandcuttingdepthofthedamagedirectlycausedbythetool.Withtheincreaseincuttingspeed,tooltiptemperaturewillrisewillhavemechanical,chemical,thermalwearandtear.20increaseincuttingspeedtoollifewillreducethe1/2.Feedconditionsandtherelationshipbetweentoolwearandtearatthebackofaverysmallareaof.However,thefeedrate,cuttingtemperaturerise,wearbigbehind.Thantheimpactofcuttingspeedontoolsmall.Depthofcutonthetoolsdidnotaffectthecuttingspeedandfeedrate,butatsmallcuttingdepthofcutwhencuttingmaterialshavebeenhardenedlayer,whichwillaffectthetoollife.Theuserisprocessedaccordingtothematerial,hardness,cuttingstatus,materialtype,feedrate,cuttingdepth,suchastheoptionofusingthecuttingspeed.Themostappropriateselectionsofprocessingconditionsareatthebasisofthesefactorsisselected.Haverules,stability,wornandtearistoachievetheidealconditionsforlife.However,inactualoperation,theselectiontoollifeandtoolwear,thesizeofchangesinprocessing,surfacequality,cuttingnoise,heatprocessingandsoon.Indeterminingtheprocessingconditionsrequiredtostudytheactualsituation.Theheatresistantalloyssuchasstainlesssteelandhardmaterials,thecoolantcanbeusedbesttouserigidblade.2.Reasonableselectiontool1whenrough,itisnecessarytochoosehighstrength,gooddurabilitytool,inordertomeettheroughknifewheneatinglargebackvolume,thefeedrequirements.2Finecar,itisnecessarytochoosehighprecision,durabilitygoodtooltoensurethattherequirementsofmachiningaccuracy.3Inordertoreducetoolchangetimeandconvenienceoftheknifeshouldbeusedmachinesandmachinefolderknifeblade.3.AreasonableselectionFixture1Generalselectiontrytheworkpiececlampingfixturetoavoidtheuseofadedicatedfixture2positioningthebasepartsoverlapsoastoreducethepositioningerror.4.Todeterminetheprocessingrouteprocessingrouteistheindexcontrolledmachiningprocess,toolpartsrelativetrajectoryanddirectionofSports.1Shouldbeabletoensurethemachiningaccuracyandsurfaceroughnessrequirements2shouldtrytoshortentheprocessingroute,reducingtraveltimeandairknives.5.ProcessingrouteofcontactwithallowanceAtpresent,CNClatheshavenotyetachievedtheuniversalaccesstoconditions,thegeneralshouldbeputontoomuchroughmargin,especiallywithforging,castinghardcushioncortexingenerallatheprocessing.MustbesuchasCNClathe,theneedtopayattentiontoprocessflexibility.6.Fixturetoinstallthemainpointsatpresent,thehydraulicclampingchuckandhydrauliccylinderareconnectedbytherodoftheimplementation,inFigure1.HydraulicclampingchuckasfollowsFirstofall,bymovingonhandtounloadthenuthydrauliccylinder,thedischargeofSLIDE,andbackendfromthespindleout,andthenmovethehandstounloadscrewchuckcanbedisposedofunderthechuck.Four,effectivelyturningareasonableSaveprocessingtimeIndexTurningCentersG200integratedprocessingunitwithamodular,highpowertwoaxislinkageaxisfunction,thusfurthershorteningtheprocessingtime.Withothermeansofjobaxisoppositetotheconceptofclamping,theuseoftheproductcanbeintegratedintelligentprocessingunitinplacesothattheworkpiececlampingandautomaticprocessing.Inotherwords,theautomaticsetupwillnotbeaffectedbytheprocessingofanotheraxis,afeaturethatcanbeshortenedabout10oftheprocessingtime.Inaddition,theFourprocessingveryquickly,youcansimultaneouslyhavetwoprocessingtool.Whenthemachineisputintouseinpairs,theefficiencybecomesmoreapparent.Inotherwords,theconventionalhardturningandsettingtwocarscanparallelmachine.Turningconventionalvehiclesandhardwaredifferencesbetweenthetoolandfocusedonlyinthecoolantsystemthermostat.However,conventionalprocessingisdifferentbothcanbeusedconventionalprocessingandatoolcarrierforprocessingTailstockandhardwarewhenusingatoolonly.Inbothtypesofmachinetoolscanbecarriedoutontheharddryprocessing,onlythemanufacturerstechnologyprogramdesignedtobalancetheneedtobeattime,andIndexofthemodulestructureofmachinetoolstoprovidethemwithgreaterflexibility.Toimprovetheproductivityofhighprecisionwiththecontinuousimprovementofproductionefficiency,theuseralsomadeforaveryhighaccuracyrequirements.TurningCenterG200usedforprocessing,thecoldstartuptofourpartsprocessingrequiredtoachievetolerancesof±6mm.Processingprocess,theaccuracyisusuallymaintainedat2mm.Indexsomadeavailabletothecompanysclientsarehighprecision,highefficiency,theintegrityoftheprogram,andprogramstoprovidesuchhighprecision,requiringcarefulchoiceofspindle,bearingsandotherfeatures.G200TurningCenterLandshut,Germany,BMWcarfactoryintheapplicationofthecompanyachievedgoodresults.Theplantisnotonlytheproductionofengines,butalsobytheproductionofcastlightmetalparts,plasticdecorativeitemsinsidethevehicleandsteeringaxis.Considerthequalityofsupervisorystaff,anditsveryprecisemachiningaccuracytolerancebandsfor±15mm,forbearingtolerance±6.5mm.Inaddition,theprocessingoftheuniversaljointsoftheIndexcompaniesuseautomaticintelligentprocessingunit.Thefirsttwopartsareusedforturningcentersbeforeplayingpreprocessing,postprocessinglinemeasurement,andthensentthroughtheconveyorbeltforhobbling,cleaningandquenchingtreatment.ThelastprocessusingthesecondprocessingsystemIndex.G200TurningCenterbytwosteeringknuckleonthecarbearinghard.Inthemachinetooltocompletetheonlinesurvey,thentothedischargeunit.Processingunitfullyintegratedintothelayoutoftheworkshop,andinlinewithergonomicrequirements,coversanareaofgreatlyreduced,andonlytwostaffmemberstothecustodyofmanufacturingcells.Friday,CNCturningandG00inthemagicaleffectoftheskillstoensuredimensionalaccuracyCNCturningprocessingtechnologyhasbeenwidelyusedinmechanicalmanufacturingindustry,howefficient,reasonable,andcompletedbythequalityoftheworkpiecebytheamountofprocessing,eachengagedinthetradeofengineeringandtechnicalpersonnelmoreorlesshavetheirownexperience.IengagedinCNCteaching,trainingandprocessingformanyyears,accumulatedacertainamountofexperienceandskills,istoCNCEquipmentFactoryGuangzhouGSK980Tseriesofmachinetoolproduction,forexample,introduceafewskillsinCNCturning.First,theprogramfirstsentenceskillsG00WenowhaveaccesstotextbooksandCNCturningtechnicalbooks,proceduresaresetupthefirstsentenceofworkpiececoordinatesystem,thatis,G50XαZβinthefirstsentenceasaprocess.Accordingtothedirective,acoordinatesystemcanbesetsothatthetoolatapointinthiscoordinatesystemascoordinatesXαZβInthispaper,theoriginofworkpiececoordinatesystemaresetattherightendoftheworkpiecesurface.Programmingusingthismethod,theknife,theknifemustbemovedtotheestablishedpositionofG50canbesetforprocessing,identifythelocationoftheprocessisasfollows.1.ofaknife,theroughworkpiececlampinggood2.SpindleistohandroundthebaserightsideknifeflatworkpiecesurfaceA3.Zaxisfixed,thereleaseofthetoolalongtheXaxispointstoC,typeG50Z0,thepointofcomputermemory4.Programentrymode,typeG01W8F50,turningouttobeonestepworkpiece5.Xaxisfixed,thereleaseofthetoolalongtheZaxispointstoC,stopturningoutmeasuringthediameteroftheworkpiecelevelγ,theimportationofG50Xγ,computermemorythatpoint6.Programentrymode,entertheG00XαZβ,programmingtoolrunsthespecifiedproceduretothestartingpoint,andthenentertheG50XαZβ,proceduresfortheoriginofthecomputermemory.Theabovementionedsteps,thestepsthatthetool6atXαZβOfficelocationisessentialotherwise,theworkpiececoordinatesystemwillbemodified,notthenormalprocessingoftheworkpiece.ProcessinghasbeentheexperienceofthepeopleallknowthattheabovepositionwillbethetooltothecumbersomeprocessofXαZβDepartment,intheeventofanaccident,XorZaxiswithoutservo,trackingerror,poweroutageshappen,etc.,thesystemcanrestart,afterrestartsystemlossofG50workpiececoordinatevaluessetbythememory,resetbacktozerorunisnolongerworking,willneedtorerunthetoolandresettoXαZβlocationG50.Ifitisproduction,processing,aftertheEndofareturntothestartingpointforcontinuedprocessingundertheG50is,intheprocesssomeerrorsontheworkpiececoordinatesystemmaybemodified.InviewofthefirstsentenceoftheaboveproceduresusingG50workpiececoordinatesystemsetupmanydefects,IwillwanttoapproachtheworkpiececoordinatesystemfixedonthemachinewillprocessthefirstsentencechangedtoG50XαZβafterG00XαZβ,problemsolved.ThecourseofitsoperationonlytofindG50usingtheabovementionedfivestepprocessbefore,thatis,1,2,3,4,5stepstoachieve,itwillrunthetooltoasafelocation,outofprocess,andcanrunautomatically.Evenifpoweroutagesandotherunforeseencircumstancesoccur,restartthesystem,intheEditmodetomovethecursorwithoutaffectingthesafeprocessingoftheworkpieceprocessingprocessprogramsegment,accordingtoautomatetheprocessingcancontinue.FirstsentenceoftheaboveproceduretoreplaceG50withG00isthesubstanceoftheworkpiececoordinatesystemfixedonthemachine,nolongerlimitedtotheoriginG50XαZβprocessconstraints,withoutchangingtheworkpiececoordinatesystem,easyoperation,reliability,andreceivedanunexpectedeffect.ChinesemetalprocessingonlineSecond,controlofdimensionalaccuracyskills1.ToamendthevalueofaknifeuptoensuredimensionalaccuracyFirstontheknifebecauseoferrororothercausesbeyondtheworkpieceworkpieceerrortolerance,cannotmeettheprocessingrequirements,canbeaddedbymodifyingtheknifesothattheworkpiecesizetomeettherequirementtoensurethattheradialdimensionsareasfollowsa.absolutecoordinateinputmethodAccordingtothebigdecrease,asmallincreaseprinciple,aknifeupat001004modified.Suchascutoffonthe2ndslotatabigsizeworkpiece0.1mm,and002showedupknivesareX3.8,mayentertheX3.7,toreducetheknifeonthe2ndmeeting.b.therelativecoordinatemethodasinthepreviouscase,enter002knifefillU0.1,alsothesameresult.Similarly,theaxialsizeofthecontrolalsoandsoon.Suchascylindricalwithaknifeonthe1staxissomewhereaboveprocessing,size,long0.1mm,canbecompletedat001knifeenterW0.1.2.SemifinishingtoensurethattheimpactoftheeliminationofscrewgapdimensionalaccuracyForthemajorityofCNClatheusingalongertime,becauseoftheeffectsofscrewspaceandprocessingoftheworkpiecedimensionsareoftenunstablesituation.Atthistime,wecanroughafterfinishingahalfspaceto
编号:201311171624517259    大小:80.00KB    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:88次
英文资料库上传于2013-11-17

官方联系方式

客服手机:17625900360   
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