文献翻译--数控加工切削.doc文献翻译--数控加工切削.doc

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

FIGURE912TOOLNOSERADIUSCOMPENSATIONALLOWSUSTOPROGRAMTHEPART,NOTTHETOOLPATHTHEMATHEMATICALCALCULATIONSTHATARENEEDEDTOPROGRAMAPARTPROFILEWITHANGLESANDRADII,WITHOUTTHEAIDOFCUTTERDIAMETERCOMPENSATION,CANBEVERYINVOLVEDONATURNINGCENTERWHENWESETTHEXANDZAXESOFTHETOOL,WECREATEASQUAREPOINTONTHETOOLMOSTOFTHETOOLSWEUSEFORTURNINGHAVERADIITOCOMPENSATEFORTHERADII,WENEEDTOUSETNRCOMPENSATION,WHICHSAVESUSFROMHAVINGTOMATHEMATICALLYCALCULATETHECUTTERPATHSEEFIGURE912TNRCOMPENSATIONALSOLETSUSUSETHESAMEPROGRAMFORAVARIETYOFTOOLTYPESWITHTNRCOMPENSATIONCAPABILITIES,THEINSERTRADIUSSIZECANBEIGNOREDANDTHEPARTPROFILECANBEPROGRAMMEDTHEEXACTSIZEOFTHECUTTINGTOOLTOBEUSEDISENTEREDINTOTHEOFFSETFILE,ANDWHENTHEOFFSETISCALLED,THETOOLPATHWILLAUTOMATICALLYBEOFFSETBYTHETOOLRADIUSTOOLNOSERADIUSCOMPENSATIONCANBETOTHERIGHTORLEFTOFTHEPARTPROFILETODETERMINEWHICHOFFSETYOUNEED,IMAGINEYOURSELFWALKINGBEHINDTHECUTTINGTOOLDOYOUWANTTHETOOLTOTHELEFTOFTHEPROGRAMMEDPATHORTOTHERIGHTSEEFIGURE913FIGURE913TOOLNOSECOMPENSATIONCOMPENSATIONDIRECTIONISCONTROLLEDBYAGCODEWHENACOMPENSATIONTOTHELEFTISDESIRED,AG41ISUSEDWHENACOMPENSATIONTOTHERIGHTISNEEDED,AG42ISUSEDWHENUSINGTHESECUTTERCOMPENSATIONCODES,YOUNEEDTOSPECIFYHOWMUCHTHECONTROLLERISTOOFFSETTHESIZEOFTHERADIUSISPLACEDINTHENOSERADIUSOFFSETTABLE,WHICHISTYPICALLYLOCATEDADJACENTTOTHETOOLFILEUNDERTHETOOLNUMBERBEINGUSEDTOOLNOSERADIUSINFORMATIONCANBEDETERMINEDFROMCATALOGSORTHEINSERTPACKAGEOTHERINFORMATIONNEEDEDTOINSUREPROPERCOMPENSATIONISTHETOOLNOSEDIRECTIONVECTORTHETOOLTIPORIMAGINARYTOOLTIPOFTURNINGTOOLSHASASPECIFICLOCATIONORDIRECTIONFROMTHECENTEROFTHETOOLNOSERADIUSTHETOOLNOSEVECTORTELLSTHECONTROLWHICHDIRECTIONITMUSTCOMPENSATEFORINDIVIDUALTYPESOFTOOLSSTANDARDTOOLNOSEDIRECTIONVECTORSARESHOWNINFIGURE14THEDIRECTIONVECTORNUMBERISUSUALLYPLACEDINTHESAMETOOLOFFSETTABLEASTHERADIUSVALUEFIGURE914TOOLNOSERADIUSDIRECTIONVECTORSTOINVOKECOMPENSATION,THEPROGRAMMERWILLHAVETOMAKEAMACHINEMOVERAMPONTHISMOVEALLOWSTHECONTROLTOEVALUATEITSPRESENTPOSITIONANDMAKETHENECESSARYADJUSTMENTFROMTOOLEDGEPOSITIONINGTOTOOLNOSERADIUSPOSITIONINGTHISADJUSTMENTMOVEMUSTBEGREATERTHANTHERADIUSVALUEOFTHETOOLTOCANCELTHECUTTERCOMPENSATIONANDRETURNTOCUTTEREDGEPROGRAMMING,THEPROGRAMMERMUSTMAKEALINEARMOVERAMPOFFTOINVOKEACUTTERCOMPENSATIONCANCELLATIONG40FIGURE915ILLUSTRATESATYPICALPARTTHATUSESTOOLNOSERADIUSCOMPENSATIONTHEPROGRAMFORTHEPARTFOLLOWSTHEFIGUREN0001G90G20;N0005G40;N0010T0101;N0015G92X5800Z10250;N0020G96S400M03;N0025GOOG42XL30Z100;RAPIDPOSITIONRAMPONMOVEANDTNRCOMPENSATIONTOTHERIGHTN0035GOOX375;PROFILEOFTHEPARTN0045G01Z00F01;PROFILEOFTHEPARTN0050G01X500Z0625;PROFILEOFTHEPARTN0055G01Z100;PROFILEOFTHEPARTN0060G02XL00Z125125K00;PROFILEOFTHEPARTN0065G01X125;PROFILEOFTHEPARTN0070G40G00X20Z20;TNRCOMPENSATIONCANCELANDRAPIDPOSITIONRAMPOFFMOVEN0075G28;N0080T0100;N0085M30;FIGURE915PROGRAMTHATUTILIZESTOOLNOSERADIUSCOMPENSATIONCANNEDCYCLESFORTURNINGCENTERSCANNEDCYCLESFIXEDCYCLESAREUSEDTOSIMPLIFYTHEPROGRAMMINGOFREPETITIVETURNINGOPERATIONS,SUCHASROUGHTURNING,THREADING,ANDGROOVINGCANNEDCYCLESARESETSOFPREPROGRAMMEDINSTRUCTIONSTHATELIMINATETHENEEDFORMANYLINESOFPROGRAMMINGPROGRAMMINGASIMPLEPARTWITHOUTTHEUSEOFACANNEDCYCLECANTAKEUPTOFOURORFIVETIMESTHENUMBEROFLINESNEEDEDFORAPARTPROGRAMMEDWITHCANNEDCYCLESTHINKOFTHELINESTHATARENEEDEDTOPRODUCEATHREAD1POSITIONTHEXANDZAXESTOTHEPROPERCOORDINATESWITHARAPIDTRAVERSEMOVEG00,2POSITIONTHETOOLFORTHEPROPERLEADANGLE,3FEEDTHETOOLACROSS,4RAPIDPOSITIONTHETOOLBACKTOTHECLEARANCEPLAN,5FEEDTHETOOLACROSSTHATISONLYTWOTHREADINGPASSESWITHACANNEDTHREADINGCYCLE,ATHREADCANBEDONEWITHONELINEOFPROGRAMMINGSTANDARDCANNEDCYCLES,ORFIXEDCYCLES,ARECOMMONTOMOSTCNCMACHINESSEEFIGURE94FORAGENERALLISTOFTHEMOSTCOMMONLYUSEDCANNEDCYCLESFORTURNINGCENTERSROUGHINGORTURNINGCYCLEG71THEG71AUTOMATICALLYTAKESROUGHINGPASSESTOTURNDOWNAWORKPIECETOASPECIFICDIAMETERATASPECIFIEDDEPTHOFCUTTHEG71CYCLEREADSASPECIFIEDNUMBEROFBLOCKSTODETERMINETHEPARTPROFILEANDDETERMINESEACHPASS,THEDEPTHOFCUTFOREACHPASS,ANDTHENUMBEROFREPEATPASSESFORTHECYCLECUTTINGISACCOMPLISHEDTHROUGHPARALLELMOVESOFTHETOOLINTHEZAXISDIRECTIONACERTAINPROCEDURENEEDSTOBEFOLLOWEDWHENUSINGCANNEDCYCLESINTHEFIRSTPROCEDURE,THETOOLNEEDSTOBEPOSITIONEDTOTHEROUGHSTOCKBOUNDARIESTHISPROCEDUREHASATWOFOLDPURPOSEITTELLSTHECONTROLHOWBIGTHESTOCKIS,ANDITCREATESAZCLEARANCEPOSITIONTHATTHETOOLRAPIDSBACKTOONEACHPASSTHEG71USESLETTERSTOGIVETHECONTROLLERINFORMATIONONTHEPARTPROFILE,THEAMOUNTOFSTOCKWEAREGOINGTOLEAVEFORFINISHING,THEDEPTHOFCUT,ANDTHEFEEDRATEAG71ROUGHINGCYCLECOMMANDFOLLOWSN0010G71P40Q85U03W010D750F012;G71ISTHEROUGHINGCYCLECALLP40ISTHEBLOCKORLINENUMBERTHATDESIGNATESTHESTARTOFTHEPARTPROFILEQ85ISTHEBLOCKORLINENUMBERTHATDESIGNATESTHEENDOFTHEPARTPROFILEU03TELLSTHECONTROLLERTHATWEWANTTOLEAVE03OFANINCHSTOCKONTHEXAXISOFTHEPROFILEFORFINISHINGWO1TELLSTHECONTROLLERTHATWEWANTTOLEAVE01OFANINCHSTOCKONTHEZAXISOFTHEPROFILEFORFINISHINGD750TELLSTHECONTROLLERWEWANTTOTAKE0750OFANINCHPERPASSPERSIDEDEPTHOFCUTNOTICETHATTHEDECIMALPOINTWASLEFTOFFNODECIMALPOINTINPUTISPOSSIBLEFORDEPTHOFCUTWHENTHEDISCOMMANDEDTHECONTROLLERREADSFROMTHERIGHTANDDECIDESWHATTHEDEPTHOFCUTWILLBEEACHNUMBERINEACHDECIMALPOSITIONGETSAVALUEIFWEWANTEDTOTAKE0500DEPTHOFCUTPERSIDE,WEWOULDWRITEITASD500THEFIRSTZEROFROMTHERIGHTHAS0TENTHSOFATHOUSANDTHSVALUETHENEXTZEROFROMTHERIGHTHAS0THOUSANDTHSOFANINCHVALUETHE5INTHETHIRDPOSITIONFROMTHERIGHTHAS5TENTHOUSANDTHSOFANINCHVALUEOR50THOUSANDTHSOFANINCHFO12ISTHEFEEDRATEOFTHEROUGHINGPASSESNEXTWETAKETHEEXAMPLEPROGRAMFROMFIGURE915ANDCONVERTITTOAPROGRAMTHATUTILIZESAROUGHINGCANNEDCYCLESEEFIGURE16WEWILLELIMINATETHETNRCOMPENSATIONJUSTFOREASEOFUNDERSTANDINGN0001GG0G20;N0005G40;N0010T0101;
编号:201311171443496671    类型:共享资源    大小:1.10MB    格式:DOC    上传时间:2013-11-17
  
5
关 键 词:
专业文献 学术论文 精品文档 文献翻译
  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。
关于本文
本文标题:文献翻译--数控加工切削.doc
链接地址:http://www.renrendoc.com/p-96671.html

当前资源信息

4.0
 
(2人评价)
浏览:10次
淘宝运营上传于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   

精品推荐

相关阅读

人人文库
关于我们 - 网站声明 - 网站地图 - 资源地图 - 友情链接 - 网站客服客服 - 联系我们

网站客服QQ:2846424093    人人文库上传用户QQ群:460291265   

[email protected] 2016-2018  renrendoc.com 网站版权所有   南天在线技术支持

经营许可证编号:苏ICP备12009002号-5