catia钣金设计教程ppt课件.ppt

1 钣金设计 CATIA培训教程 2 课程介绍 先修课程 CatiaV5基础CatiaV5零件设计CatiaV5装配设计CatiaV5工程图设计 课程目的本课程研究利用CATIAV5建立和编辑修改钣金特征和零件的方法 学员对象从事CatiaV5钣金设计的用户 3 目錄 鈑金設計基礎1鈑金設計概述工作臺介紹 使用者介面 術語 一般過程2鈑金參數3鈑金壁板 Walls 4鈑金彎曲 Bends 和凸緣 Flanges 5鈑金沖孔 CutOuts 平面陣列模式及特徵6生成2D鈑金展開視圖7修改鈑金零件 4 进入工作台用户接口术语了解一般过程 介绍钣金设计工作台 钣金设计概述 5 进入工作台 可以从1 开始菜单2 档菜单3 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PartBody 1 2 3 6 文件扩展名 CATPart 与普通零件设计相同 钣金设计工具 钣金参数 零件树 标准工具栏 特征 钣金设计用户接口 进入草图器 钣金参数 7 Insert菜单或工具栏 钣金设计用户接口 钣金设计工具 扫掠壁板 Walls 冲压 Stampings 展开 Unfold 钣金工具 弯曲 Bend 数组 Patterns 增强复制 PowerCopy 8 术语 零件 由一个或多个壁板 弯曲和特征组成参数 通常是指设计零件的壁板厚度 弯曲半径和起伏类型的值起始壁板 用草图 轮廓 生成 可以是一个或一组拉伸壁板特征 施加在零件上的形态 如 冲孔 数组和冲压等 9 GeneralProcess FromAssembly createanewpart Top downapproach orCreateanewpart insertinassembly Bottom upapproach AssignMaterialParameters Createdifferenttypesofwalls Add冲孔and3DFeatures Adddifferenttypesof弯曲 ModifyWallThicknessandWallSizes CreatingaFlatViewofthepart 10 钣金Parameters Inthislesson youwillseehowtostarta钣金partbyassigningthebasicparameterneededtocreatethepart Defining钣金Parameters 11 Beforestartingtocreateany钣金part definethe钣金Parametersofthepart Thesearecommoncharacteristicsthatwhendefinedwillmakecreationeasierandthuslimityourneedtosupplydataduringcreationofthepart DefiningParameters ParametersTab BendExtremitiesTab 12 Parametersarethecommoncharacteristicusedinthecreationofthepart Theyareassimpleasstatingthedimensionalrequirementofthematerialandbendradius WhatareParameters ItisimportanttonoteherethatonlyonesetofparameterscanbeassignedinaCATPart thereforeyouarelimitedtoonepartperdocument 13 Inordertostarttherearethreebasicparametersthatneedtobeassigned MaterialThicknessBendRadiusBendReliefType WhatParametersneedtobedefined BendRadius TypesofdifferentBendReliefs SquareRelief Minimumwithnorelief RoundRelief Linear Tangent Maximum MaterialThickness Remember theBendRadiusassignedhereisthestandardBendRadiustobeusedonthepart ThiswillbeusedtocreateallBendRadiiunlessspecifiedotherwiseduringthecreation 14 DefiningMaterialThickness Selectthe钣金ParameterIcon 1 ActivatetheParameterstabinthe钣金Parameterswindow 2 WiththeThicknessfieldactive keyinthenewvalue 3 IftheMaterialThicknessisallyouarechanging selectOKtoendthemodification 4 Createparts 15 DefiningMaterialBendRadius Selectthe钣金ParameterIcon 1 ActivatetheParametersTabinthe钣金Parameterswindow 2 KeyinthenewBendRadius Bendradiicanbeassmallas0 01mm 0Radiusisnotavailableyet 3 4 SelectOK Createparts 16 SelectingtheBendReliefType Selectthe钣金ParameterIcon 1 SelecttheBendExtremitiesTabinthe钣金Parameterswindow 2 SelectthetypeofBendReliefdisplayedinthewindow 3 Thereliefwithitsdimensionsaredisplayed 4 IftheBendRadiusisallyouarechanging selectOKtoendthemodification 5 Wherepossiblebendreliefvalues L1andL2canbemodifiedtosuityourspecialneeds Createparts 17 Inthislesson youwillseehowtostarta钣金partanddifferentwaystodefinewalls 钣金Walls DefiningWallsfromScratchDefiningWallsonExistingParts钣金Wallsrecapexercise 18 Youwilllearnhowtocreatethe5basictypesofwallsofferedinthe钣金workbench DefiningWallsfromScratch Profilewall WallonEdge ExtrudedWall RolledWall PiercedWall 19 Tostarta钣金part createsometypeofwallfirsttostartfrom Itcanbeaslittleasonelinethatyoucanextrudeawallfromoracomplexprofiletocreatemanywallsfromoraprofiletomakeanindividualwall Whatarewalls Beawarethatwhereyouselectedges topvsbottomwilldriveadifferentproposalforyourwall Forexample atopselectionmayforceyourwalltogoinanupwarddirectionwhileabottomselectionmayforceyourwallinadownwarddirection Anexampleofhowdifferentwayscouldbeusedtocreatethispartisasfollows Wall1couldhavebeencreatedfirstasaflatprofilewallandthenwalls2 3 and4couldhavebeendoneaswallsonedgeWall1 2 and3couldhavebeencreatedwithanextrudeandthenwall4couldhavebeendoneasawallonedge 1 2 3 4 20 TheProfilewallisusedtocreateawallofaspecificshape Oftenusedasafirstwallofapart Whentousethevarioustypesofwalls TheExtrudedwallsareusedtocreateagroupofwallsusingaspecificprofile Hereitisusedtobuildasimple U shapedchassisorahatsectionusedtostrengthenotherparts TheWallonEdgeisusedtocreateawallonanedgeofanexistingwall Youcanalsoselectanedge clickonthewalliconanddrawthesketchyouwant 21 ProfileWalls EntertheSketcheronxyplaneandselecttheprofileicon DrawtheSketch ExitSketcherandselecttheprofileWallicon Growtharrowdefaultsupward Ifneeded invertbutton 3 1 2 4 SelectOKtocreatethewall 5 Remember thedirectionofgrowtheffectshowthewallwillbemodifiedifyouchangetheMaterialthicknesslater growtharrow 22 ProfileWalls with冲孔 EntertheSketcheronxyplaneandselecttheprofileicon DrawtheSketch ExitSketcherandselecttheprofileWallicon Growtharrowdefaultsupward Ifneeded invertbutton 3 1 2 4 SelectOKtocreatethewall 5 Remember thedirectionofgrowtheffectshowthewallwillbemodifiedifyouchangetheMaterialthicknesslater 23 WallsonanEdge Selectthewallonedgeicon SelectOKtocreatethewall 5 1 2 Keyinthenewvaluesandselectadimensionoptions 3 Toreversesketchprofiledirection selectthisbutton 4 Selecttheedgetoattachthewalltoo 6 Selectthe WithBend optiontoautomaticallycreatethebend 24 WallsonanEdge withclearance Note thereferencewallisnotimpactedbythenewwall Selectthewallonedgeicon SelectOKtocreatethewall 1 2 Keyinthenewvaluesandselectadimensionoptions 3 Selecttheclearanceoption Thevalueisbydefaultdrivenbybendradius 4 Selecttheedgetoattachthewallto 6 Selectthe WithBend optiontoautomaticallycreatethebend 5 25 ExtrudedWalls Note inthetree eachwalliscreatedseparatelyundertheextrusion Nosketchesforthewallsarecreated thesketchfortheoriginalprofileiskept Keyorselecttheextrusionparameters EntertheSketcheronxyplaneandselecttheprofileicon Sketchtheprofile 1 2 ExitSketcherandselecttheExtrusionwallicon 3 SelectOK 4 5 Thewallscanbecreatedononeorbothsidesofthesketch SecondLimit Also thematerialthicknesscanbeineitherdirectionorsymmetricallyaroundtheprofile symmetricalthicknesscheckbox 26 IsolateWalls MB3onExtrusionorEdgeWallandselectitemobjectandIsolate 1 IfanExtrusion Selectawall 2 5localaxis 6sketchesandsomecoincidenceconstraintsareautomaticallycreatedforthisextrusion Canbeperformedon extrusionwallswallonedge YoucannotundoanIsolateactionafterhavingmodifiedthewall IsolatingaWallonEdgeerasesallupdatingdata 27 RolledWalls EntertheSketcheronxyplaneandselecttheprofileicon DrawtheSketch ExitSketcherandselecttheExtrudeicon Keyorselecttheextrusionparameters 3 1 2 4 SelectOKtocreatethewall 5 RememberthedirectionofgrowtheffectshowthewallwillbemodifiedifyouchangetheMaterialthicknesslater 28 DefiningWallsonExistingParts Youwilllearnhowtodefinewallsonexistingsolidparts 29 Anotherwaytostartcreating钣金wallsistotakeanexistingsolidandrecognize change thesolidwallsinto钣金walls WhatisWallRecognition Beawarethatanycutoutsinthepart whenitisrecognized canonlybemodifiedinthePartDesignworkbench ReferenceWall 30 WallsRecognitionDefinitiondialogbox 2Wallcreationmodes 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features 31 RecognizingWallsonParts ChangestoGeometrywillhavetobedonefromtheoriginalcreationgeometryinthePartDesignworkbench SelecttheRecognizeicon 2 1 4 SelecttheUnfoldicon TheTreeisupdatedwiththeNewWalls SelecttheFaceoftheReferenceWall ThethicknessoftheshellandtheradiusoftheFilletaretakenasthedefaultvaluesintheSheetMetalParameters 5 3 SelecttheDefinitionparameters 32 钣金弯曲and凸缘 Inthislesson youwillseehowtoadd弯曲toapartandalsoseesomedifferenttypeof凸缘thatcanbeusedwhencreatingparts Defining弯曲betweenWallsDefiningDifferenttypesof凸缘available钣金弯曲and凸缘recapexercise 33 弯曲canbecreatedbyfourways Ifyouchoose youcancreateyourbendeachtimeyoucreateawallonanotherwalloryoucancreateabunchofwallsthatshowhowyourpartwilllookandthenuseAutomatic弯曲tocreateallofthematonetime Defining弯曲forWalls SingularBend Automatic弯曲 Conical弯曲 弯曲fromflat 34 A钣金partiscreatedfromonepieceofmetalthatiscuttotheshapeneededandfoldedtocreatethepart Thesefoldsarewhatiscall弯曲 Whatare弯曲 Bend BendRelief BendReliefisthematerialcutout removed toallowthefoldingofthepartwithouttearingthematerialorcausingitdeform 35 InV5 thenewmethodologyistocreategroupsofwallswhichhaveacommonbendsize Allowingagroupofwallstobecreatedallatonetimeandsavethestepsofhavingtoconfirmthedirectioneachtime WhentouseAutomatic弯曲 Incaseswhereyouhavenon standard弯曲 youwillhavetousethesingularbendcapabilityanddefinedirection Therefore itisimportanttomakesureyourstandardbendisthemostcommonbendsizeonyourpart SingularBendCreatedfirst Allother弯曲arecreatedwithAutomatic弯曲 36 UsingtheAutoBendFunction Today thedirectionofthebendischosenforyou Displaythepartyouwishtohavethe弯曲addedtoo SelecttheAutomaticBendicon 1 2 Allofthebendradiiarecreatedatthedefaultvalue 37 UsingtheSingularBendfunction Bendarrowscanbeselectedtoreversethemandthedirectionofthebend Selecteachofthewallsinvolvedinthebend 2 SelecttheBendicon 1 TheBendDefinitionwindowisdisplayedindicatingtheWallsinvolved radiusvalueandangularvalue 3 Thebendarrowsaredisplayedshowingthewallbenddirection 4 Thebendandrelief sarecreatedasassignedintheoriginalparameterswindow 38 UsingtheConicalBendfunction Bendarrowscanbeselectedtoreversethemandthedirectionofthebend Selecteachofthewallsinvolvedinthebend 2 SelecttheConicalBendicon 1 TheBendDefinitionwindowisdisplayedindicatingtheWallsinvolved radiusvaluesandangularvalue 3 Thebendarrowsaredisplayedshowingthewallbenddirection 4 39 UsingtheBendFromFlatfunction Sketchalineonthefuturebendarea 1 TheBendFromFlatDefinitionwindowisdisplayedindicatingtheSketchinvolved radiusvaluesandangularvalue 3 SelectOK 4 SelecttheBendFromFlaticonandthesketch 2 40 ModifyingaStandardBendRadius Thisprocesscanalsobeusedtocreateabendbyselectingtheequationicon Selecteachofthewallsinvolvedinthebend 2 SelecttheBendicon 1 TheBendDefinitionwindowisdisplayedindicatingtheWallsinvolved radiusvalueandangularvalue 3 KeyinthenewvalueintheBenddefinitionwindow Makesurethebendarrowsarepointingintheproperdirection Right clickintheRadiusfieldandselectFormula Deactivate 4 5 Thebendandrelief sarecreatedasassignedintheoriginalparameterswindow 41 UsingtheCornerRelieffunction 2 Youhaveseveralshapesforrelieves round square triangular SelecttheMorebuttonandswitchtoBendCornerReliefTabandactivatetheCornerReliefoption 3 Double clickonthebendtoeditit 1 ClickOKtovalidate YoucanalsodefinetheCornerReliefintheSheetMetalParameters 42 UsingtheUserCornerRelieffunction SelecttheCornerReliefIcon thesketchandthethreeimpacted弯曲directlyonthegeometry 3 Unfoldthepart TheUserCornerReliefmustbedoneontheunfoldedpart 1 SketchthedesiredprofilesfortheCornerReliefArea 2 SelectOK 4 Youcanalsohaveaccesstoacatalogofpre definedsketchesinsteadofdrawingyourownsketch 43 凸缘comeinfourdifferenttypes RegularFlange HemBend TeardropandSweptFlange Defining凸缘 RegularFlange HemBend TearDrop SweptFlange 44 凸缘aredifferentwaystoform钣金intotabs wallsandedgesthatgivefunctionality beauty strengthandsafetytothepart Whatare凸缘 45 Regular凸缘areusedtocreatetabsincutoutsandsimple凸缘aroundtheedgesofparts Whentousethevarioustypesof凸缘 TearDropscanalsoservetocreatedecorativeedgesaswellascreatethingslikehingepinsopenings Hem弯曲areusedtostrengthenlongthin钣金partsandtoalsosupplyasmoothsafeedge Swept凸缘areusedtosweepprofilesaroundexterioredgesofparts 46 Simple凸缘 Note theedgesselectedcanbeonesingleedge straightorcurvedoranynumberofeitheraslongastheyareconnected SelecttheFlangeicon 1 Selecttheedges 2 Keyinananglevalue Keyintheradiusvalue 3 Keyinthelengthvalue 4 5 SelectOKtocreatetheflange 6 47 Theminimumradiusacceptedis 01mm Keyinalength 4 SelectOKtocreatetheHembend SelecttheHemBendicon Selecttheedge Keyinaradiusvalue Aswithanyflange multipleedgescanbeselectedtowrapitaroundthepart 5 Hem弯曲 1 2 3 48 SelecttheTearDropBendicon Keythelength Selectanedge 2 Keyintheradius 3 SelectOKtocreateTearDropBend 4 TearDrop凸缘 1 5 Thelengthdimensioncannotbelessthentheradiusbutitcanbethesame allowingyoutocreateahingepinopening 49 Swept凸缘 Onlyasinglelineprofileneedstobecreatedhere Theflangekeywilladdthethicknesspertheparameterscharacteristics SelecttheSweptFlangeicon SelecttheSpinethebendistobelocatedon 2 SelectOKtocreatetheflange 4 Selecttheprofiletobeswept 1 3 Theelementconnectingtotheedgemustbetangentandcoincidentwiththeedge 50 钣金CutOuts FlatPatternModeandFeatures Inthislesson youwillseehowtoaddCutOutstoparts patternthem aswellashowtomakeuseofthe3DFeaturesavailable DefiningCutOutsinWallsGoingtoFlatPatternModeDefininga3DFeature钣金CutOuts PatternsandFeaturesrecapexercise 51 Inthe钣金workbenchtherearenoHolesorPocketiconsasinthePartDesignworkbench Openingsina钣金partarealldonewithaCutOuticon DefiningCutOutsinWalls 52 ACutOutisanyopeningina钣金wall Itcanbeanything fromassimpleascircularholetoamorecomplexcutout CutOutscanbepatternedjustasinthePartDesignworkbench WhatareCutOuts TheCutOuticonisverysimilartothePocketiconinthePartDesignworkbenchandhasallofthedepthcapabilitiessuchas UptoNext and UptoLast Acut outcanbecreatedwithanopencontoursketch 53 CutOutsareusedtosubtractmaterialtocreateahole pocket notch slot oranyothertypeopening Theycanbeassimpleasacircleormorecomplexbyhavingmanyline arc splinesegments WhentouseCutOuts Aftercreatingawall itispossibletoaddadditionalslotsontheexteriorofthewall addnotches orchamferswithcutoutswithoutmodifyingthewallsketch InternalwallCutOuts CutOutusedtomodifyanexistingwall 54 CreatingaCutOut Tip For钣金parts theuseof UpToNext willmakemodificationeasier Createtheprofileofthecutoutusingthesketcher SelectOK 1 Selecttheparametersofthecutout Returnto3DandselecttheCutouticon 2 4 5 Selecttheprofiletomakeitactive 3 Tip UsingUptoLast allowsforthecutouttogothroughbothwallswithonetreeentry 55 CreatingCorners YouhavetwowaystocreateCorners selecteachedgeorselectthe SelectAll button SelecttheCornersicon Keyintheradiusvalue 3 1 SelectOK 4 Selecttheedge s 2 IfyouchecktheConvexEdge s buttonandyouselectaconcaveedge awarningisissuedindicatingthatyoudidnotselectanedgecorrespondingtotheactivetype Onceyouhaveselectedanedge youcannolongermodifythecheckboxoptions unlessyoucanceltheselection 56 CreatingChamfers YouhavetwowaystocreateChamfers selectSharpedgeorWeldicon SelecttheChamfericon SelectoptionsandKeyvalues 4 1 SelectOK 5 Selectthetype 2 Selecttheedge s 3 SharporWeld 57 ThedifferenttypeofPatterns RectangularPattern CircularPattern UserPattern SeveralParameterconfigurations Oneachcase filltwoofthethreeparameters Thereferencedirectionelementcanbeselecteddirectlyonthegeometry edges The CompleteCrown Parameterisveryusefultoinstantiateafeatureallaroundacrown Fortheposition selectasketchcontainingpointswherethenewfeatureswillbeinstantiated 58 PatterningaCutOut 2 SelectthePatternicon SelectOKtocreatethepattern Definethepatternparameters 3 1 4 SelecttheCutOuttopattern Note instancesofthepatterncanbeturnedoffachieveastaggeredpattern 59 Whendesigninga钣金part youmayfindtimeswhenyouneedtoseethepartinitsFlattenedstateforcheckingoraddingphysicalcutouts GoingtoFlatPatternMode Thepartcanalsobedisplayinfoldedandtheunfoldedstatesintwodifferentwindowsatthesametime 60 FlatPatternModeiswhenyouareviewingthe钣金partinit sunfoldingcondition Allowingallofthecutouts edges bendlimitsandfootprintstamptobedisplayed WhatisFlatPatternMode Note therearetimeswhenelementswillnotbedisplayedinFlatPatternMode Forexample ifawalldoesnothaveabendassignedtoit Also ifastampfeatureiscreatedoverthelimitbetweenseveralsupports suchaswalls 弯曲 andsoforth thisstampisalsonotvisible 61 FlatPatternModeshouldbeusedwhenaCutOutwillbepartofmorethanonewallandgothroughabend Thisallowsittobelocatedfromtheedgesontheflattenedpatternofthepart WhentouseFlatPatternMode AnotheruseofFlatPatternModeistobeabletolocateanyoverlapofwalls Typically thisoccurswhere凸缘overlapeachother InternalwallCutOuts 凸缘areOK 凸缘areoverlaped 62 GoingtoFlatPattern PartMode 1 SelecttheUnfoldicon Torefoldthepartsimplyselecttheiconagain 2 Acopyofthepartismaintainedinflatmodeduringthecreationofthepart makingitquicktoswitchfromonemodetotheother CutOutsorWallscreatedin3Dmustbemodifiedin3D Likewise cutoutsmadeinFlatPatternModemustbemodifiedinFlatPatternMode Thepartisunfoldedaccordingtothereferencewallplane 63 SelectOK asketchoftheoverlapzoneiscreatedanddisplayedonthetree Checkingtheoverlaps Switchtothe钣金ProductionWorkbench 1 SelecttheUnfoldicon 2 SelecttheCheckOverlappingicon 3 Theoverlapzoneishighlightedandawindowisdisplayed 4 64 Checkingtheoverlaps SelecttheMapCurvesicon 1 SelecttheCurveonthe3Dgeometryorinthetree 2 3 Note youmustbeintheunfoldedview SelectOK twosketchesoftheoverlapzonearemappedontheir3Dplace Refoldthepart youcannowmodifyitaccordingtothesketches 4 65 SelecttheCutOuticon 4 DefinetheCutOutparameters SelecttheUnfoldicon Createasketchapproximatelythesamesizeatthesamelocation Selecttheflatsurfacetosketchon Selecttheicontorefoldthepart 5 CreatingaCutOutinFlatPatternMode 2 3 1 6 CutOut screatedinFlatPatternModecanalsobepatterned 66 Designinga钣金part youwillfindaneedtouse3DFeatures Stamps suchasanextrudedholeorabridge TheCATIA钣金workbenchprovidessomeofthecommonStampsFeaturesorallowsuser definedones DefiningaStampFeature 67 AStampFeatureisacommonpieceofgeometryusedincreating钣金partsthroughastampingand ordieprocess Itcomeswithparametersthatcanbemodifiedtochangeitsshapeorsizeandsometimesrequiresasketchtocompleteit screation WhatisaStampFeature Stampfeaturescanhavecutoutsinthem 68 ShownbelowarethevarioustypesofFeaturesavailable WhattypesofStampFeaturesareavailable ExtrudedHoleFeature PointStampFeature LouverFeature StiffeningRibFeature SurfaceStampFeature CurveStampFeature Bridg