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外文翻译--模具加工技术的最新发展.doc

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外文翻译--模具加工技术的最新发展.doc

科技译文译文二ADVANCEDPROCESSINGTECHNOLOGYDEVELOPMENTSFEWINDUSTRIESLIKEMETALPROCESSINGBRANCHHEADSCREATINGSUCHDYNAMIC,CONSTANTLYSEEKINGTHELATESTTECHNOLOGIESANDINNOVATIVEIDEASAREESSENTIALTOANYCOMPONENTSOFTHEPLANTAREINALEADINGPOSITIONINTRODUCEDSOMEOPPORTUNITIESHERETOCREATEORPROVIDEFORTHEPROCESSINGCOMPONENTSOFTHELEADINGPOSITIONOFTECHNOLOGICALPROGRESS1、PARALLELPROCESSINGCONCEPTSTHETYPEOFCORECOMPONENTSANDXINGQIANGINTOAMULTITASKMACHINETOOLS,SPAREPARTSINTHEPARALLELPROCESSINGBACKGROUNDTHECONCEPTOFTHEMAZAKCORPORATIONFLORENCE,BARESERIESINTEGREXPROCESSINGCENTERINIMTS2004EXPOSITIONONDISPLAYUSEASOFTTILTEDXIANXIAOAXISBAXISANDREVERSETHECHEXIAOAXISCAXIS,RECTANGULARPIECEOFTHEFOURSIDESANDBACKFROMTHECOOLINGKONGXIANXIAOCOMPLETEDANDXINGQIANGCOREPARTSARESTILLINTHEFINALWEREMERGEDINTOONEFORPROCESSINGTHEMAINAXISOFROTATIONTHROUGHJUXIAOXIANXIAOAXISTILTEDANDCOORDINATION,ANDOPTIMIZECUTLERYORIENTATIONCANBEIMPROVEDSURFACEROUGHNESSANDCUTLERYLIFEIMPROVEDHAVINGTOBEAROUNDFORTHEDUMPINGOFSCRAPCYCLICALANDTHETYPEOFCORECOMPONENTSINTHECONSOLIDATEDINTOAXINGQIANGPARTSWEREPROCESSEDTHESEFOURCOMPONENTSASPECTOFTHECOOLINGINAZHUANGGAKONGWASSHORTXINGQIANGCOREANDTHENSEPARATED,EACHPARTINTHERESCUEARESTILLFIRMLYREVERSETHEJUXIAOAXISTWOPARTSOFHISTWONEWDIMENSIONSTOTHEIRONEDIMENSIONALXIANXIAO,ANDTHEHEADSOFTWOPARTSINACOOLINGKONGZHUANGJIAWASALLCOMINGCOMPAREDWITHTHETRADITIONALPROCESSING,THISAPPROACHHASGREATLYREDUCEDTHENUMBERZHUANGGAANDPROCESSESASPARTOFTHEINSTRUMENTBETWEENTHETWOEXCELLENTORIENTATIONUNTILTHEYWERESEPARATED,THEACCURACYALSOINCREASEDENABLINGTECHNOLOGYINTHISAPPLICATION,THELOCATIONACCURACYISTHEKEYROTARYAXISMULTITASKMACHINETOOLSINXIANXIAO00001DEGREESWITHAFOCUSONTHEUSEOFROLLERCAMRESOLUTIONOWNERS,FROMTHESUBDEGREEINCREMENTALCHEXUEAXISIS00001DEGREESACCORDINGTOTHEMACHINETOOLMANUFACTURERSINTRODUCED,12,000RPMROTATIONALSPEEDOFTHEOSCILLATIONAMPLITUDEOF15MICROMETERSXIANXIAOAXIS000006INCHESTHEMAINAXISOFOSCILLATIONAMPLITUDECANPROTECTLOWSPEEDAPPLICATIONSOFSMALLDIAMETERCUTLERYXIANXUE2、PARALLELPROCESSINGCONCEPTSLARGEMOULDPARTSDIVIDEDINSMALLERPROCESSINGCENTERPROCESSINGAFTERFURTHERPROCESSINGCOMPONENTSASSEMBLEDINTOACOMPLETEMODELCOREORXINGQIANGINSOMECASES,THECOMPONENTSAREDESIGNEDTOASSEMBLEAMOSAICOFTHESTATESTRUCTURESXINGQIANGLANEBACKGROUNDINASEPARATELARGECOMPONENTSPARTS,EACHCOMPONENTMAYBESMALLERPROCESSINGCENTERPROCESSING,WITHOUTTHENEEDTOHAVEALARGEVERTICALMACHINETOOLPROCESSINGWORKSTATIONSALTHOUGHSMALLERVERTICALMACHINETOOLSCANALSOUSE,BUTMORESMALLERHORIZONTALPROCESSINGCENTERIDEAL,BECAUSEITHASTHEADVANTAGEPAIXIEANDPRODUCTIVITYBECAUSETHEIRSCOPEOFWORKACCORDINGLYSMALLER,THESMALLERMACHINETOOLSTENDTOHAVEAHIGHERPLACEPRECISIONASTHEQUALITYOFMOBILEAXLESMALL,THESMALLERTHECONTOURCUTTINGMACHINETOOLSCANBEHIGHERPEAKACCELERATIONANDREDUCINGSPEEDACC/DECACC/DECHIGHERRATESCANREDUCETHEPROCESSINGTIMESIGNIFICANTLYBECAUSEHIGHERACC/DECUSUALLYNEED20HOURSTOBEPROCESSEDIN15HOURSTOCOMPLETEINTHESMALLERMACHINETOOLS,THEBLADECANBEEASILYDEALTWITHFOREXAMPLE,AFINECUTLERYFORCUTTINGEDGEOFBLADECANNOTCOMPLETEPROCESSINGISAPROMISINGINSTRUMENTCOMPONENTSMOSTIMPORTANTLY,TWOORTHREEMACHINETOOLSATTHESAMETIME,MORETHANONEOPERATIONTOTAIWANINTHEPRODUCTIONOFLARGEMACHINETOOLSFOREXAMPLE,20HOURPROCESSINGINTWOSMALLMACHINETOOLSCANBECOMPLETEDIN75HOURSSHAREOFWORKINGHOURS,ANDTHENFASTERACC/DECRATEFACTORAGROUPOFTHESMALLERMACHINETOOLSCANARRANGEMORETHANONELARGEMACHINETOOLSSOFTWHENLARGEHEADSDESIGNEDTOBESUITABLEFORPROCESSINGSUBPLOTS,WITHONLYTHESMALLERMACHINETOOLPLANTHASRECEIVEDTHEORIGINALMOULDPROCESSINGCAPACITYBEYONDITSMANDATEINADDITION,SMALLERMACHINETOOLSREPRESENTALOWERCAPITALINVESTMENTADVANCEDPLANTMUSTBETWOORMORESMALLMACHINETOOLSWITHTHESAMECAPABILITIESWITHTHEOVERALLCOSTOFLARGESCALEPROCESSINGCENTERCOSTCOMPARISONSFINALLY,THEINSTRUMENTDESIGNEDFORPARALLELPROCESSINGPERFORMANCEMAYIMPROVEMAINTENANCE,ANDREHABILITATIONOFTHEOPPORTUNITYFOREXAMPLE,ONEINSTRUMENTMAYBEFEASIBLE,SOTHEREGIONCANBEEASILYWORNINTENSESEPARATECOMPARTMENTALIZEDTHISNEEDSTOBEREPLACEDBYBLOCKS,MAINTENANCEORREPAIROFPARTS,PARKINGTIMECANBEREDUCEDTOAMINIMUMENABLINGTECHNOLOGYTHESMALLERMACHINETOOLSMUSTBEHIGHPRECISIONSPACESFORTHEASSEMBLYOFTHEMOULDCOMPONENTSCANTRULYSEAMLESSCONNECTIONADJOININGPLANE3、WUZHOUGUNDRILLINGPROCESSINGCONCEPTACOMPOSITEKOKDRILLINGPIPELINESHAVETHECAPACITYTOIMPROVETHEPERFORMANCEOFMAJORCOMPONENTSOFTHECOOLINGPOSSIBLEWUZHOUGUNDRILLINGMACHINETOOL科技译文PROCESSINGBYELIMINATINGMANYCOMPLEXZHUANGJIATOOBTAINGOODECONOMICPOSSIBLEBACKGROUNDFORTHECARSTICKERS,VEHICLEINSTRUMENTATIONPANELSANDOTHERPLASTICPIECESTHATRELYONTHERAPIDANDEFFECTIVECOOLINGCOMPONENTSTOBECOMPETITIVEPRODUCTIONCYCLEWHENONLYAFIXEDWORKSTATIONANDFIXEDLINEGUNDRILLINGMACHINETOOLPROCESSING,MOLDDESIGNERSHAVETWOWAYSTORAISELARGEMOULDCOOLINGRATEONEWAYISTOINCREASETHESTRAIGHTTHROUGHMODULESPIPELINESANOTHERMETHODISACOMPOSITEKOKDRILLINGPIPELINESTOPIPELINESCLOSERTOXINGQIANGSURFACETHEFIRSTAPPROACHWOULDMEANASIGNIFICANTINCREASEINTHETIMESPENTONPROCESSINGGUNDRILLINGTHESECONDMETHODDOESNOTNECESSARILYIMPLYTHATMOREDRILLINGTIME,BUTITSUBSTANTIALLYINCREASEDZHUANGJIATIME,BECAUSECOMPONENTSMUSTDIEFOREVERYREQUESTPERSPECTIVEMANUALPOSITIONINGEACHPROCESSINGZHUANGGADRILLINGTIMEMUCHLONGERTHANTHEUSUALTIMEWHENTHENEEDFORTHATPURPOSEREMOVECUSTODY,WUZHOUGUNDRILLINGMACHINETOOLSANDPROCESSINGKOKKONGCOMPOSITETOOLSCOOLINGCAPACITYBECOMESMOREAPPARENTTHESEPROGRAMMESARENOTVERYATTRACTIVE,ANDTHEYCANNOTEVENHOPETOMEETCUSTOMERDEMANDFORLOWERPRICESDIVISIONWUZHOUGUNDRILLINGMACHINETOOLPROCESSINGPROVEDAGOODSOLUTIONTHISMAKESPROCESSINGWITHOUTPARALLELINTHEMACHINETOOLAXISANDTHEINCREASINGNEEDFORTHESHENKONGJIGCANBECOMEVIABLEANDTHEABILITYTOCOMPLETEAGREATLYREDUCEDNUMBEROFCOMPONENTSREQUIREDZHUANGGAFIXEDLINEANDFIXEDWORKSTATIONSINTHEGUNDRILLINGMACHINETOOLS,PROCESSINGACOMPOSITEKOKDRILLINGPIPELINES,THEHEADSOFYINMODULESVEHICLEINSTRUMENTATIONPANELSMAYNEEDUPTO60TIMESZHUANGJIAINWUZHOUGUNDRILLINGMACHINETOOLPROCESSINGTODOTHESAMEWORKNEEDTHREEORFOURZHUANGJIA,RESEARCHPERSONNELSAIDENABLINGTECHNOLOGIESIXIONDRUMMERIATLF13005WUZHOUGUNDRILLINGMACHINETOOLPROCESSINGINIMTS2004EXPOSITION,QUITEREMARKABLETHEFEATUREISAPROGRAMMABLEMACHINETOOLROTARYWORKSTATIONSANDLOWERTHANNORMALRANGE25DEGREES,MORETHAN15DEGREESFACILITYAROUNDTHECEILINGFIRSTTHEMACHINETOOLSANDEQUIPMENTTOTHETRADITIONALGUNDRILLING,STSONEPIPESYSTEMPATTERNSOFBORING,ORHAVETWOBITSOFEQUIPMENTUSEONEINCHDIAMETERDRILLBITINTHELATTERSHENKONGDRILLING,ITSSPEEDASHIGHAS9INCHESPERMINUTEACCORDINGTOUSIXIONDRUMMERINCCOMPANIESMONROE,NEWYORKCEOSTRESSESTHATTHEMACHINETOOLSANDPROCESSESTOREALTIMECONTROLSYSTEMSTOGRAPHICALDISPLAYOFHYDRAULICANDFLOW,INTOTHERESISTANCEANDTORQUETHISMEANSTHATINTHEOPTIMALDRILLINGDRILLINGCANCONTROLTHESPEEDANDREDUCETHERISKOFDAMAGECUTLERY译文二模具加工技术的最新发展很少有金属加工的分支行业能像模具制造这样具有活力,因此,不断寻求最新的技术和创新的观念是任何模具厂处于领先地位必不可少的部分。这里介绍一些利于创造机会或为模具加工提供领先地位的技术进展。1、并行加工观念模具的型芯和型腔合并成一个零件在多任务机床上被并行加工。背景这个观念由MAZAK公司FLORENCE,KENTUCKY的E系列INTEGREX加工中心在IMTS2004展会上进行演示。使用具有柔性的倾斜铣削主轴(B轴)和反向的车削主轴(C轴),长方形工件的四个侧面和背面上的冷却孔由铣削完成。型芯和型腔零件在工件仍合并成一体时被加工。通过车削主轴的旋转和铣削主轴倾斜的协调,优化刀具的定向能获得表面粗糙度的改善和刀具寿命的提高。工件还可周期性地反转以利倾倒切屑。模具的型芯和型腔在合并成一个零件时被加工。这些模具四个侧面上的冷却孔在一次装夹中被钻出。然后型芯和型腔被分离,每个部分仍被牢固地夹持在反向的车削主轴。对两个部分各自露出两个新的侧面进行平面铣削,而模具两个部分上的冷却孔在一次装夹中被全部钻出。与传统加工相比,这个方法极大地缩减了装夹次数和工序。由于模具的两个部分相互之间保持极好的定向直到被分离,所以精度也提高了。使能技术在这个应用里,旋转轴的位置精度是关键。多任务机床在铣削主轴上使用一个提供00001度分辨率的滚子凸轮。主、从车削主轴的分度增量也是00001度。据机床商介绍,转速12,000RPM的铣削主轴的振幅为15微米000006英寸。极低的主轴振幅可保护高速铣削应用的小直径刀具。2、平行加工观念大型模具零件被分割后在较小的加工中心上加工。加工完后的部件再装配成一个完整的型芯或型腔。在某些情况下,部件被设计成镶嵌件以装配到模架上的型腔里。背景在分割一个大型模具零件之后,每个部件可能在较小的加工中心上加工,而不需要放到具有大工作台的大型立式机床上加工。虽然也可应用较小的立式机床,但较小的卧式加工中心更加理想,因为它具有排屑和生产能力方面的优势。因为它们的工作范围相应地更小,较小的机床倾向于具有更高的形位精度。由于移动轴的质量小,较小的机床对于等高线切削能获得更高的加速度和减速度ACC/DEC。更高的ACC/DEC速率能显著地减少整个加工时间因为更高的ACC/DEC,通常需要20小时的加工能在15小时内完成。在较小的机床上,换刀问题能很容易处理。例如,一把精加工刀具不用换切削刃就能完成模具部件精加工是很有希望的。

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