catia钣金设计教程.ppt

1钣金设计钣金设计CATIA培训教程培训教程2课程介绍课程介绍先修课程先修课程:Catia V5基础基础Catia V5零件设计零件设计Catia V5装配设计装配设计Catia V5工程图设计工程图设计:课程目的课程目的本课程研究利用本课程研究利用CATIAV5建立和编辑修改钣金特征和零件的方法。建立和编辑修改钣金特征和零件的方法。学员对象学员对象从事从事CatiaV5钣金设计的用户钣金设计的用户3目錄目錄鈑金設計基礎鈑金設計基礎1鈑金設計概述鈑金設計概述工作臺介紹工作臺介紹:使用者介面、術語、一般過程使用者介面、術語、一般過程2鈑金參數鈑金參數3鈑金壁板（鈑金壁板（Walls）4鈑金鈑金彎曲彎曲（Bends)和凸緣和凸緣(Flanges)5鈑金鈑金沖孔（沖孔（CutOuts），平面陣列模式及特徵），平面陣列模式及特徵6生成生成2D鈑金展開視圖鈑金展開視圖7修改鈑金零件修改鈑金零件沈飞工学院4进入工作台进入工作台用户接口用户接口术语术语了解一般过程了解一般过程介绍钣金设计工作台介绍钣金设计工作台钣金钣金设计概述设计概述5进入工作台进入工作台 可以从可以从1-开始菜单开始菜单2-档菜单档菜单3-工作台工具工作台工具 进入钣金设计工作台，建立一个包含几何元素的进入钣金设计工作台，建立一个包含几何元素的PartBody1-2-3-6文件扩展名文件扩展名.CATPart(与普通零件设计相同与普通零件设计相同)钣金钣金设计工具设计工具.钣金钣金参数参数零件树零件树标准工具栏标准工具栏特征特征.钣金设计用户接口钣金设计用户接口:进入草图器进入草图器.钣金钣金参数参数7Insert菜单或工具栏菜单或工具栏 钣金设计用户接口钣金设计用户接口:钣金钣金设计工具设计工具扫掠壁板（扫掠壁板（Walls）冲压（冲压（Stampings）展开（展开（Unfold）钣金钣金工具工具弯曲（弯曲（Bend）数组（数组（Patterns）增强复制（增强复制（PowerCopy）8术语术语零件零件由一个或多个壁板、弯曲和特征组成由一个或多个壁板、弯曲和特征组成参数参数通常是指设计零件的壁板厚度、弯曲半径和起伏类型的值通常是指设计零件的壁板厚度、弯曲半径和起伏类型的值起始壁板起始壁板用草图（轮廓）生成，可以是一个或一组拉伸壁板用草图（轮廓）生成，可以是一个或一组拉伸壁板特征特征施加在零件上的形态，如：冲孔、数组和冲压等施加在零件上的形态，如：冲孔、数组和冲压等9GeneralProcessFromAssemblycreateanewpart(Top-downapproach)orCreateanewpartinsertinassembly(Bottom-upapproach)AssignMaterialParametersCreatedifferenttypesofwallsAdd冲孔冲孔and3DFeaturesAdddifferenttypesof弯曲弯曲ModifyWallThicknessandWallSizesCreatingaFlatViewofthepart10钣金钣金ParametersInthislesson,youwillseehowtostarta钣金钣金partbyassigningthebasicparameterneededtocreatethepart.Defining钣金钣金Parameters11Beforestartingtocreateany钣金钣金part,definethe钣金钣金Parametersofthepart.Thesearecommoncharacteristicsthatwhendefinedwillmakecreationeasierandthuslimityourneedtosupplydataduringcreationofthepart.DefiningParametersParametersTabBendExtremitiesTab12Parametersarethecommoncharacteristicusedinthecreationofthepart.TheyareassimpleasstatingthedimensionalrequirementofthematerialandbendradiusWhatareParameters?ItisimportanttonoteherethatonlyonesetofparameterscanbeassignedinaCATPart,thereforeyouarelimitedtoonepartperdocument.13Inordertostarttherearethreebasicparametersthatneedtobeassigned:MaterialThicknessBendRadiusBendReliefTypeWhatParametersneedtobedefined?BendRadiusTypesofdifferentBendReliefsSquareReliefMinimumwithnoreliefRoundReliefLinearTangentMaximumMaterialThicknessRemember,theBendRadiusassignedhereisthestandardBendRadiustobeusedonthepart.ThiswillbeusedtocreateallBendRadiiunlessspecifiedotherwiseduringthecreation.14DefiningMaterialThicknessSelectthe钣钣金金ParameterIcon1ActivatetheParameterstabinthe钣金钣金Parameterswindow2WiththeThicknessfieldactive,keyinthenewvalue3IftheMaterialThicknessisallyouarechanging,selectOKtoendthemodification4Createparts15DefiningMaterialBendRadiusSelectthe钣钣金金ParameterIcon1ActivatetheParametersTabinthe钣金钣金Parameterswindow2KeyinthenewBendRadiusBendradiicanbeassmallas0.01mm.0Radiusisnotavailableyet.34SelectOKCreateparts16SelectingtheBendReliefTypeSelectthe钣钣金金ParameterIcon1SelecttheBendExtremitiesTabinthe钣金钣金Parameterswindow2SelectthetypeofBendReliefdisplayedinthewindow3Thereliefwithitsdimensionsaredisplayed4IftheBendRadiusisallyouarechanging,selectOKtoendthemodification5Wherepossiblebendreliefvalues,L1andL2canbemodifiedtosuityourspecialneedsCreateparts17Inthislesson,youwillseehowtostarta钣金钣金partanddifferentwaystodefinewalls钣金钣金WallsDefiningWallsfromScratchDefiningWallsonExistingParts 钣金钣金Wallsrecapexercise18Youwilllearnhowtocreatethe5basictypesofwallsofferedinthe钣金钣金workbenchDefiningWallsfromScratchProfilewallWallonEdgeExtrudedWallRolledWallPiercedWall19Tostarta钣金钣金part,createsometypeofwallfirsttostartfrom.Itcanbeaslittleasonelinethatyoucanextrudeawallfromoracomplexprofiletocreatemanywallsfromoraprofiletomakeanindividualwall.Whatarewalls?Beawarethatwhereyouselectedges,topvsbottomwilldriveadifferentproposalforyourwall.Forexample,atopselectionmayforceyourwalltogoinanupwarddirectionwhileabottomselectionmayforceyourwallinadownwarddirection.Anexampleofhowdifferentwayscouldbeusedtocreatethispartisasfollows:Wall1couldhavebeencreatedfirstasaflatprofilewallandthenwalls2,3,and4couldhavebeendoneaswallsonedgeWall1,2,and3couldhavebeencreatedwithanextrudeandthenwall4couldhavebeendoneasawallonedge123420TheProfilewallisusedtocreateawallofaspecificshape.OftenusedasafirstwallofapartWhentousethevarioustypesofwalls?TheExtrudedwallsareusedtocreateagroupofwallsusingaspecificprofile.Hereitisusedtobuildasimple“U”shapedchassisorahatsectionusedtostrengthenotherparts.TheWallonEdgeisusedtocreateawallonanedgeofanexistingwall.Youcanalsoselectanedge,clickonthewalliconanddrawthesketchyouwant21ProfileWallsEntertheSketcheronxyplaneandselecttheprofileiconDrawtheSketchExitSketcherandselecttheprofileWalliconGrowtharrowdefaultsupward.Ifneeded,invertbutton3124SelectOKtocreatethewall5Remember,thedirectionofgrowtheffectshowthewallwillbemodifiedifyouchangetheMaterialthicknesslater growth arrow22ProfileWalls(with冲孔冲孔)EntertheSketcheronxyplaneandselecttheprofileiconDrawtheSketchExitSketcherandselecttheprofileWalliconGrowtharrowdefaultsupward.Ifneeded,invertbutton3124SelectOKtocreatethewall5Remember,thedirectionofgrowtheffectshowthewallwillbemodifiedifyouchangetheMaterialthicknesslater23WallsonanEdgeSelectthewallonedgeiconSelectOKtocreatethewall512Keyinthenewvaluesandselectadimensionoptions3Toreversesketchprofiledirection,selectthisbutton4Selecttheedgetoattachthewalltoo6Selectthe“WithBend”optiontoautomaticallycreatethebend24WallsonanEdge(withclearance)Note:thereferencewallisnotimpactedbythenewwallSelectthewallonedgeiconSelectOKtocreatethewall12Keyinthenewvaluesandselectadimensionoptions3Selecttheclearanceoption.Thevalueisbydefaultdrivenbybendradius4Selecttheedgetoattachthewallto6Selectthe“WithBend”optiontoautomaticallycreatethebend525ExtrudedWallsNote:inthetree,eachwalliscreatedseparatelyundertheextrusion.Nosketchesforthewallsarecreated;thesketchfortheoriginalprofileiskept.Keyorselecttheextrusionparameters.EntertheSketcheronxyplaneandselecttheprofileiconSketchtheprofile12ExitSketcherandselecttheExtrusionwallicon3SelectOK45Thewallscanbecreatedononeorbothsidesofthesketch(SecondLimit).Also,thematerialthicknesscanbeineitherdirectionorsymmetricallyaroundtheprofile(symmetricalthicknesscheckbox)26IsolateWallsMB3onExtrusionorEdgeWallandselectitemobjectandIsolate1IfanExtrusion,Selectawall25localaxis,6sketchesandsomecoincidenceconstraintsareautomaticallycreatedforthisextrusion.Canbeperformedon:extrusionwallswallonedgeYoucannotundoanIsolateIsolateactionafterhavingmodifiedthewall.IsolatingaWallonEdgeerasesallupdatingdata.27RolledWallsEntertheSketcheronxyplaneandselecttheprofileiconDrawtheSketchExitSketcherandselecttheExtrudeiconKeyorselecttheextrusionparameters.3124SelectOKtocreatethewall5RememberthedirectionofgrowtheffectshowthewallwillbemodifiedifyouchangetheMaterialthicknesslater28DefiningWallsonExistingPartsYouwilllearnhowtodefinewallsonexistingsolidparts29Anotherwaytostartcreating钣金钣金wallsistotakeanexistingsolidandrecognize(=change)thesolidwallsinto钣金钣金walls.WhatisWallRecognition?Beawarethatanycutoutsinthepart,whenitisrecognized,canonlybemodifiedinthePartDesignworkbench.ReferenceWall30WallsRecognitionDefinitiondialogbox2Wallcreationmodes:Partbodyrecognition:thewholesolidisprocessedandwallsarecreatedwhereverpossible.Onlyselectedfaces:onlyexplicitlyselectedfacesofthesolidareprocessedandthecorrespondingwallsarecreated.Compulsorywalls-arefacesfromwhichthewallsaretobegeneratedwhentheremightbeanambiguity.Forexample,iftheinitialpartisabox,youwillneedtoselecttwooppositeinnerfacesandouterfacesontheothertwosidesofthebox,inordertoavoidoverlappingwhengeneratingthewalls.Internalprofilesrecognitionmode:Ascutoutwall:generateswallswithinnercontours(nocutoutfeatureisgenerated)Onecutoutbywall:regardlessofhowmanypocketsthereareonafaceofthesolid,onlyonecutoutfeatureisgeneratedperwallOnecutoutbyprofile:foreachinnercontouronthesketch-basedsolid,acutoutfeatureisgeneratedNone:whethertherearepocketsonthesolidfaces,ornot,nocutoutfeatureiscreatedintheresulting钣金钣金features.31RecognizingWallsonPartsChangestoGeometrywillhavetobedonefromtheoriginalcreationgeometryinthePartDesignworkbenchSelecttheRecognizeicon214SelecttheUnfoldiconTheTreeisupdatedwiththeNewWallsSelecttheFaceoftheReferenceWallThethicknessoftheshellandtheradiusoftheFilletaretakenasthedefaultvaluesintheSheetMetalParameters.53SelecttheDefinitionparameters32钣金钣金弯曲弯曲and凸缘凸缘Inthislesson,youwillseehowtoadd弯曲弯曲toapartandalsoseesomedifferenttypeof凸缘凸缘thatcanbeusedwhencreatingpartsDefining弯曲弯曲betweenWallsDefiningDifferenttypesof凸缘凸缘available 钣金钣金弯曲弯曲and凸缘凸缘recapexercise33弯曲弯曲canbecreatedbyfourways.Ifyouchoose,youcancreateyourbendeachtimeyoucreateawallonanotherwalloryoucancreateabunchofwallsthatshowhowyourpartwilllookandthenuseAutomatic弯曲弯曲tocreateallofthematonetime.Defining弯曲弯曲forWallsSingularBendAutomatic弯曲弯曲Conical弯曲弯曲弯曲弯曲fromflat34A钣金钣金partiscreatedfromonepieceofmetalthatiscuttotheshapeneededandfoldedtocreatethepart.Thesefoldsarewhatiscall弯曲弯曲.Whatare弯曲弯曲?BendBendReliefBendReliefisthematerialcutout(removed)toallowthefoldingofthepartwithouttearingthematerialorcausingitdeform35InV5,thenewmethodologyistocreategroupsofwallswhichhaveacommonbendsize.Allowingagroupofwallstobecreatedallatonetimeandsavethestepsofhavingtoconfirmthedirectioneachtime.WhentouseAutomatic弯曲弯曲?Incaseswhereyouhavenon-standard弯曲弯曲,youwillhavetousethesingularbendcapabilityanddefinedirection.Therefore,itisimportanttomakesureyourstandardbendisthemostcommonbendsizeonyourpart.SingularBendCreatedfirstAllother弯曲弯曲arecreatedwithAutomatic弯曲弯曲36UsingtheAutoBendFunctionToday,thedirectionofthebendischosenforyou.Displaythepartyouwishtohavethe弯弯曲曲addedtoo.SelecttheAutomaticBendicon12Allofthebendradiiarecreatedatthedefaultvalue.37UsingtheSingularBendfunctionBendarrowscanbeselectedtoreversethemandthedirectionofthebend.Selecteachofthewallsinvolvedinthebend2SelecttheBendicon1TheBendDefinitionwindowisdisplayedindicatingtheWallsinvolved,radiusvalueandangularvalue3Thebendarrowsaredisplayedshowingthewallbenddirection4Thebendandreliefsarecreatedasassignedintheoriginalparameterswindow38UsingtheConicalBendfunctionBendarrowscanbeselectedtoreversethemandthedirectionofthebend.Selecteachofthewallsinvolvedinthebend2SelecttheConicalBendicon1TheBendDefinitionwindowisdisplayedindicatingtheWallsinvolved,radiusvaluesandangularvalue3Thebendarrowsaredisplayedshowingthewallbenddirection439UsingtheBendFromFlatfunctionSketchalineonthefuturebendarea1TheBendFromFlatDefinitionwindowisdisplayedindicatingtheSketchinvolved,radiusvaluesandangularvalue3SelectOK4SelecttheBendFromFlaticonandthesketch240ModifyingaStandardBendRadiusThisprocesscanalsobeusedtocreateabendbyselectingtheequationiconSelecteachofthewallsinvolvedinthebend2SelecttheBendicon1TheBendDefinitionwindowisdisplayedindicatingtheWallsinvolved,radiusvalueandangularvalue3KeyinthenewvalueintheBenddefinitionwindow.MakesurethebendarrowsarepointingintheproperdirectionRight-clickintheRadiusfieldandselectFormula/Deactivate45Thebendandreliefsarecreatedasassignedintheoriginalparameterswindow41UsingtheCornerRelieffunction2Youhaveseveralshapesforrelieves:round,square,triangular.Selectthe MorebuttonandswitchtoBend Corner ReliefTabandactivatetheCorner Reliefoption3Double-clickonthebendtoeditit1ClickOKtovalidateYoucanalsodefinetheCornerReliefintheSheetMetalParameters42UsingtheUserCornerRelieffunctionSelecttheCornerReliefIcon,thesketchandthethreeimpacted弯曲弯曲directlyonthegeometry3Unfoldthepart;TheUserCornerReliefmustbedoneontheunfoldedpart1SketchthedesiredprofilesfortheCornerReliefArea2SelectOK4Youcanalsohaveaccesstoacatalogofpre-definedsketchesinsteadofdrawingyourownsketch.43凸缘凸缘comeinfourdifferenttypes:RegularFlange,HemBend,TeardropandSweptFlange.Defining凸缘凸缘RegularFlangeHemBendTearDropSweptFlange44凸缘凸缘aredifferentwaystoform钣金钣金intotabs,wallsandedgesthatgivefunctionality,beauty,strengthandsafetytothepart.Whatare凸缘凸缘?45Regular凸缘凸缘areusedtocreatetabsincutoutsandsimple凸缘凸缘aroundtheedgesofpartsWhentousethevarioustypesof凸缘凸缘?TearDropscanalsoservetocreatedecorativeedgesaswellascreatethingslikehingepinsopeningsHem弯曲弯曲areusedtostrengthenlongthin钣金钣金partsandtoalsosupplyasmoothsafeedgeSwept凸缘凸缘areusedtosweepprofilesaroundexterioredgesofparts.46Simple凸缘凸缘Note:theedgesselectedcanbeonesingleedge,straightorcurvedoranynumberofeitheraslongastheyareconnected.SelecttheFlangeicon1Selecttheedges2KeyinananglevalueKeyintheradiusvalue3Keyinthelengthvalue45SelectOKtocreatetheflange647Theminimumradiusacceptedis.01mmKeyinalength4SelectOKtocreatetheHembendSelecttheHemBendiconSelecttheedgeKeyinaradiusvalueAswithanyflange,multipleedgescanbeselectedtowrapitaroundthepart.5Hem弯曲弯曲12348SelecttheTearDropBendiconKeythelengthSelectanedge2Keyintheradius3SelectOKtocreateTearDropBend4TearDrop凸缘凸缘15Thelengthdimensioncannotbelessthentheradiusbutitcanbethesame;allowingyoutocreateahingepinopening.49Swept凸缘凸缘Onlyasinglelineprofileneedstobecreatedhere.TheflangekeywilladdthethicknesspertheparameterscharacteristicsSelecttheSweptFlangeiconSelecttheSpinethebendistobelocatedon.2SelectOKtocreatetheflange4Selecttheprofiletobeswept13Theelementconnectingtotheedgemustbetangentandcoincidentwiththeedge.50钣金钣金CutOuts,FlatPatternModeandFeaturesInthislesson,youwillseehowtoaddCutOutstoparts,patternthem,aswellashowtomakeuseofthe3DFeaturesavailable.DefiningCutOutsinWallsGoingtoFlatPatternModeDefininga3DFeature钣金钣金CutOuts,PatternsandFeaturesrecapexercise51Inthe钣金钣金workbenchtherearenoHolesorPocketiconsasinthePartDesignworkbench.Openingsina钣金钣金partarealldonewithaCutOuticon.DefiningCutOutsinWalls52ACutOutisanyopeningina钣金钣金wall.Itcanbeanything,fromassimpleascircularholetoamorecomplexcutout.CutOutscanbepatternedjustasinthePartDesignworkbench.WhatareCutOuts?TheCutOuticonisverysimilartothePocketiconinthePartDesignworkbenchandhasallofthedepthcapabilitiessuchas“UptoNext”and“UptoLast”Acut-outcanbecreatedwithanopencontoursketch.53CutOutsareusedtosubtractmaterialtocreateahole,pocket,notch,slot,oranyothertypeopening.Theycanbeassimpleasacircleormorecomplexbyhavingmanyline,arc,splinesegments.WhentouseCutOuts?Aftercreatingawall,itispossibletoaddadditionalslotsontheexteriorofthewall,addnotches,orchamferswithcutoutswithoutmodifyingthewallsketch.InternalwallCutOutsCutOutusedtomodifyanexistingwall54CreatingaCutOutTip:For钣金钣金parts,theuseof“UpToNext”willmakemodificationeasier.CreatetheprofileofthecutoutusingthesketcherSelectOK1SelecttheparametersofthecutoutReturnto3DandselecttheCutouticon245Selecttheprofiletomakeitactive3Tip:“UsingUptoLast”allowsforthecutouttogothroughbothwallswithonetreeentry55CreatingCornersYouhavetwowaystocreateCorners:selecteachedgeorselectthe“SelectAll”buttonSelecttheCornersiconKeyintheradiusvalue31SelectOK4Selecttheedge(s)2IfyouchecktheConvexEdge(s)buttonandyouselectaconcaveedge,awarningisissuedindicatingthatyoudidnotselectanedgecorrespondingtotheactivetype.Onceyouhaveselectedanedge,youcannolongermodifythecheckboxoptions,unlessyoucanceltheselection.56CreatingChamfersYouhavetwowaystocreateChamfers:selectSharpedgeorWeldiconSelecttheChamfericonSelectoptionsandKeyvalues41SelectOK5Selectthetype:2Selecttheedge(s)3Sharp or Weld57ThedifferenttypeofPatternsRectangularPatternCircularPatternUserPatternSeveralParameterconfigurations.Oneac