附录一外文翻译英文原文WeldrobotapplicationpresentconditionAccordingtoincompletestatistics,theworld'sindustrialrobotsinserviceinaboutnearlyhalfoftheindustrialrobotsusedinthefieldofallformsofweldingprocess,weldingrobotapplications,themostpopularplay,therearetwomainmethods,spotweldingandelectricarcwelding.Wecalltheweldingrobotisactuallyaplaceinthefieldofweldingproductionwelderintheindustrialrobotweldingtask.Someoftheseweldingrobotsdesignedassomekindofwelding,andinfactmostoftheweldingrobotisacommonindustrialrobotequippedwithaweldingtoolandcomposition.Inamultitaskingenvironment,arobotcanevenbecompleted,includinggraspingobjectsincludingwelding,handling,installation,welding,unloadingandothertasks,therobotcanplaysumnatureofthetasksundertheprogramtoautomaticallyreplacetherobotwristThetool,completethecorrespondingtask.Therefore,inasense,historyisthedevelopmentofindustrialrobotsweldingrobothistory.Itiswellknownthatweldingprocessrequiresskilledweldershaveskills,richexperience,stableweldinglevel:itisapoorworkingconditions,smokemore,heatradiationlarge,high-riskwork.TheemergenceofindustrialrobotsPeoplenaturallythinkfirstofpeopleuseittoreplacemanualwelding,theweldertoreducethelaborintensity,butalsocanensuretheweldingqualityandimprovetheweldingefficiency.However,weldingandotherindustrialprocessesaredifferent,suchasarcweldingprocess,weldingpartsbyheatingandmeltingandcoolingduetolocaldeformation,weldpathwillthuschange.Handexperienceofthewelderwhenweldingcanbeobservedundertheeyesoftheactuallocationoftimelyadjustmentoftheweldtorchposition,postureandwalkingspeedtoadapttochangesintheweldpath.However,therobotmustadapttothischange,youmustfirstlikepeopleto"see"thechange,andthentaketheappropriatemeasurestoadjustthelocationandstatusoftheguntoachievereal-timetrackingoftheweld.Becausethereisastrongarcweldingprocess,arcnoise,dust,dropletinstabilitycausedbywireshort-circuit,highcurrentmagneticfieldofcomplexenvironmentalfactorssuchastheexistenceofrobotsplayingdetectandidentifythesignalcharacteristicsoftherequiredweldextractionisnotasindustrialmanufacturingprocessoftestingtheothersoeasy,therefore,theapplicationofweldingrobotsisnotthebeginningforelectricarcweldingprocess.Infact,theindustrialrobotapplicationsinthefieldofweldingthefirstautomobileassemblylinefromtheresistancespotweldingbegan.Thereasonisthattheprocessofresistancespotweldingisrelativelysimple,convenientcontrol,anddoesnotrequireseamtracking,therobotaccuracyandrepeatabilityofcontrolplayingarelativelylowdemand.Spotweldingrobotsintheautomotiveassemblylineofalargenumberofapplicationsgreatlyenhancetheproductivityoftheautomotiveassemblyandweldingqualitywelding,butalsohasaflexibleweldingcharacteristics,thatisonlyplayingtochangeproceduresonthesameproductionlinecanbeonadifferentmodelforassemblywelding.Robotbirthfromtheearly80softhiscentury,robottechnologyhasgonethroughalongslowprocessofdevelopment.In90s,withcomputertechnology,microelectronictechnology,therapiddevelopmentofnetworktechnology,roboticstechnologyhasbeenrapiddevelopment.Industrialrobotmanufacturinglevel,controlthespeedandtheaccuracy,reliabilitywasbeingimprovedallthetime,whiletherobotmanufacturingcostsandpriceshavebeendeclining.InWesternsociety,andtherobotpricescontrast,thehumanlaborcostsareagrowingtrend.UnitedNationsEconomicCommissionforEurope(UNECE)statisticsfrom1990to2000robotsandlaborcost...
