CATIA达索官方曲面初级培训练习.ppt

CopyrightDASSAULTSYSTEMES2002 1 WireframeandSurfaceDesign CATIATrainingExercises Version5Release9June2002EDU CAT E WFS FX V5R9 CopyrightDASSAULTSYSTEMES2002 2 TableofContents MasterExercise MobilePhonep 3Creatingthewireframegeometryp 7Creatingthesurfacesp 12Trimmingandjoiningthebodysurfacesp 15Creatingthepartbodyp 19Modifyingthegeometryp 21RecapExercise Buttonp 23Creatingthewireframegeometryp 24Creatingthesurfacesp 26Creatingthesolidp 28Modifyingthegeometryp 31Exercise WrenchBodyp 33Creatingthesurfaceofthehandlep 37Creatingaloftedsurfacetolinkthepartsp 39Creatingthesidesurfaceoftheheadp 42Creatingaconnectingsurfacep 44Completingthewrenchbodyp 46 CopyrightDASSAULTSYSTEMES2002 3 MobilePhoneExercise MobilePhone PresentationMobilePhone 1 CreatingwireframegeometryMobilePhone 2 CreatingbasicsurfacesMobilePhone 3 TrimmingandjoiningthebodysurfacesMobilePhone 4 CreatingthepartbodyMobilePhone 5 ModifyingtheGeometry CopyrightDASSAULTSYSTEMES2002 4 AndnowpracticeinthecontextoftheMobilephone EntertheWireframeandSurfaceDesignworkbench Createthesurfaces 2 Trimandjointhebodysurfaces 3 Createthepartbody 4 EnterthePartDesignworkbench Modifythegeometry 5 Createthewireframegeometry 1 CopyrightDASSAULTSYSTEMES2002 5 Exercise MobilePhone PresentationInthisexerciseyouwillseehowtocreateamobilephonebodyusingtheWireframeandSurfaceDesignandPartDesignworkbenches Creatingwireframeelements Points splines combinecurves circles lines Creatingsurfaces swept extruded revolvedsurfaces Manipulatingsurfaces trim symmetry join Creatingsolidfromsurface Close fillet shell Modifyingthegeometry 35min CopyrightDASSAULTSYSTEMES2002 6 DesignIntent MobilePhone Creationofguideandcentercurvesbyusingcombine lines sketcher andsplines CreationofsurfacesusingSweep ExtrudeandRevolutionOperationsonsurfacesusingTrimandJoinCreationofsolidfromsurfacesusingClose FilletandShellModificationofthegeometrybychangingparametersofthesurfacedefinition CopyrightDASSAULTSYSTEMES2002 7 Createtheguidecurvesandprofiles Exercise MobilePhone Creatingthewireframegeometry 10min CopyrightDASSAULTSYSTEMES2002 8 1 Createthesepoints 0 0 9 40 0 7 5 60 0 6 80 0 5 8 and 90 0 5 8 2 DrawasplinepassingthroughthesepointsimposingatangencyconditionwiththeXaxisatthetwoextremities 3 Createthesepoints 0 17 0 20 20 0 40 19 0 60 18 0 and 90 18 0 4 DrawasplinepassingthroughthesepointsimposingatangencyconditionwiththeXaxisatthelastextremity 5 Createacombinecurveusingthetwoprevioussplinecurves Renameit Guidecurve1 6 Createthesepoints 0 0 3 70 0 4 and 90 0 4 7 DrawasplinepassingthroughthesepointsimposingatangencyconditionwiththeXaxisatthelastextremity 8 Createacombinecurveusingthelastcreatedsplinecurveandthesecondsplinecurve Renameit Guidecurve2 DoItYourself 1 4 Guidecurve1 Guidecurve2 Partused Mobile phone step1 1 CATPart CopyrightDASSAULTSYSTEMES2002 9 7 CreatethissketchintheYZplane Renameit Profile1 8 Createthiscirclecenteredonthepoint 70 0 0 9 Createthecirclecenteredonthepoint 20 0 0 DoItYourself 2 4 CopyrightDASSAULTSYSTEMES2002 10 DoItYourself 3 4 7 Createacombinecurveusingthefirstcreatedsplineandthesecondcircle Renameit Guidecurve3 8 Createacombinecurveusingthethirdcreatedsplineandthesecondcircle Renameit Guidecurve4 9 Createacombinecurveusingthefirstcreatedsplineandthefirstcircle Renameit Guidecurve5 10 Createacombinecurveusingthethirdcreatedsplineandthefirstcircle Renameit Guidecurve6 11 Createalinestartingfromthepoint 0 0 300 andXdirected whateverit slength itwillbeusedasanaxis CopyrightDASSAULTSYSTEMES2002 11 CreatethissketchintheYZplaneandrenameit Profile2 DoItYourself 4 4 CopyrightDASSAULTSYSTEMES2002 12 Exercise MobilePhone Creatingthesurfaces Createswept extrudedandrevolvedsurfaces 10min CopyrightDASSAULTSYSTEMES2002 13 DoItYourself 1 2 P1usershavetoloadthenextCATIAParttogoon 1 Createasweptsurfaceusing Guidecurve1 and Guidecurve2 asguidecurves thesketch Profile1 asprofileanditstwovertexpointsasanchorpoints 2 Createacirclesweptsurfaceusing Guidecurve3 and Guidecurve4 asguidecurveand Profile2 asprofileanditstwovertexpointsasanchorpoints 3 Createacirclesweptsurfaceusing Guidecurve5 and Guidecurve6 asguidecurveand Profile2 asprofileanditstwovertexpointsasanchorpoints Note switchontheoption PositionProfile forthetwoprevioussweptsurfaces Partused Mobile phone step2 1 CATPart CopyrightDASSAULTSYSTEMES2002 14 DoItYourself 2 2 4 Extrudethespline3usingtheZXplaneasdirection Length 25mm 5 CreatearevolutionsurfaceusingSpline1asprofileandLine1asaxis Angle1 0degandangle2 5deg CopyrightDASSAULTSYSTEMES2002 15 Exercise MobilePhone Trimmingandjoiningthebodysurfaces Trimthesurfacesbyselectingthesurfaceareayouwanttokeep 5min CopyrightDASSAULTSYSTEMES2002 16 DoItYourself 1 3 1 Trimthefirstcreatedsweptsurfacewiththerevolutionsurface 2 Trimtheprevioustrimsurfacewiththeextrudedsurface Partused Mobile phone step3 1 CATPart CopyrightDASSAULTSYSTEMES2002 17 DoItYourself 2 3 3 Trimtheprevioustrimsurfacewiththefirstcirclesweptsurface 4 Trimthelasttrimsurfacewiththesecondcirclesweptsurface CopyrightDASSAULTSYSTEMES2002 18 DoItYourself 3 3 5 SymmetrizetheresultingsurfaceusingtheXZplaneasreferenceandjoinitwiththelasttrimsurface CopyrightDASSAULTSYSTEMES2002 19 Exercise MobilePhone Creatingthepartbody Closethebodysurfaceintoasolid thenfilletandshellthesolid 5min CopyrightDASSAULTSYSTEMES2002 20 DoItYourself AccessthePartDesignworkbenchanddefineinworkobjectthe Solid body 1 ClosethesurfaceBodysurface 2 Addvariablefilletsonthetwosidetopedges from4mmto2mm 3 Add1mmedgefilletsonthesefouredges Partused Mobile phone step4 1 CATPart CopyrightDASSAULTSYSTEMES2002 21 Exercise MobilePhone Modifyingthegeometry Modifythegeometrybymodifyingaconstructionelement 5min CopyrightDASSAULTSYSTEMES2002 22 DoItYourself 1 Displaythesecondsplineanditspoints 2 Double clickonPoint 6tochangeitsYcomponentvalueto16mm Youwillmodifytheoverallshapeofthepartbychangingtheparametersofaconstructionelement Partused Mobile phone step5 1 CATPart CopyrightDASSAULTSYSTEMES2002 23 RecapExercise InthisexerciseyouwillseehowtocreateabuttonbodyusingtheWireframeandSurfaceDesignandPartDesignworkbenches CreatingtheprofilesExtrudingtheprofileCreatingthesolidpartModifyingthegeometry 25min CopyrightDASSAULTSYSTEMES2002 24 Exercise Button Step1 CreatingthewireframegeometryInthisstepyouwill CreatethepointsCreatetheprofilecurvesCreatethedirectionlines 5min CopyrightDASSAULTSYSTEMES2002 25 DoItYourself 1 Create5points Pt1 0 0 5 Pt2 0 10 9 Pt3 0 23 7 Pt4 0 30 8 Pt5 20 30 7 2 CreateasplinepassingthroughPt1toPt43 CreatealinepassingthroughPt4andPt54 DrawasketchonXYplanewithtwocoincidencesandaradiusof20mm5 DrawaverticallineonYZplane SketchonXYplane 4 LineonYZplane 5 Points Spline Line 1 2 3 Createthewireframegeometry Button step1 CATPart CopyrightDASSAULTSYSTEMES2002 26 Exercise Button Step2 CreatingthesurfacesInthisstepyouwill Createextrudedsurfaces 5min CopyrightDASSAULTSYSTEMES2002 27 DoItYourself 1 Createthefirstextrudedsurface selectprofileSketch 1anddirectionSketch 22 Createthesecondextrudedsurface selectprofileSpline 1anddirectionLine 1 Spline 1 Line 1 Sketch 1 Sketch 2 SurfaceExtrude 1 1 SurfaceExtrude 2 2 Createthebasicsurfaces Button step2 3 CATPart CopyrightDASSAULTSYSTEMES2002 28 Exercise Button Step3 CreatingthesolidInthisstepyouwill CreateapadusingtheexistingsurfacesaslimitsAddfilletsonedgesShellthepart 10min CopyrightDASSAULTSYSTEMES2002 29 Sketch 3onXYplane 1 Sketch 4YZplane 2 1 Createasketch rectangularcontour ontheXYplane2 Createasketch trapezoidalcontour ontheYZplane DoItYourself 1 2 Button step4 CATPart CopyrightDASSAULTSYSTEMES2002 30 Paduptosurface 3 Splitofpad 4 Fillets 6 3 CreateapadonSketch 3 uptotheExtrude 2surface4 SplitPad 1withExtrude 1assplittingsurface5 CreateapadonSketch 4uptotheExtrude 1surface6 Make1 5mmfilletsonthe6horizontalandverticaledges7 Shellthebottomfaceswith1mm 5faces DoItYourself 2 2 Paduptosurface 5 Shell 7 CopyrightDASSAULTSYSTEMES2002 31 Exercise Button Step4 ModifyingthegeometryInthisstepyouwill ModifythegeometrybymovingthedefinitionpointsofthesplineandchangingparametersintheSketcher 5min CopyrightDASSAULTSYSTEMES2002 32 1 DoubleclickonPt3andchangetheZvalueto5mmtomodifytheshapeofthespline2 OpenSketch 1tochangetheradiusvalueto25mm Pt3 Sketch 1 2 Pointonspline 1 DoItYourself Button step5 CATPart CopyrightDASSAULTSYSTEMES2002 33 WrenchBodyExercise WrenchBody PresentationWrenchBody 1 CreatingtheSurfaceoftheHandleWrenchBody 2 CreatingaLoftedSurfacetoLinkthePartsWrenchBody 3 CreatingtheSideSurfaceoftheHeadWrenchBody 4 CreatingaConnectingSurfaceWrenchBody 5 CompletingtheWrenchBody CopyrightDASSAULTSYSTEMES2002 34 Exercise Wrenchbody PresentationInthisexerciseyouwilllearnhowtocreateawrenchbodyusingtheWireframeandSurfaceDesignandPartDesignworkbenches Creatingwireframeelements point line spline Creatingsurfaces revolution loft sweep Manipulatingsurfaces symmetry join Creatingsolidfromsurface close extrude 35min CopyrightDASSAULTSYSTEMES2002 35 DesignIntent WrenchBody Creationofguide sectionandspinecurvesusingspline sketcher projectandsplitCreationofrevolution loftandsweepsurfacesCreationofsolidfromsurfacesusingcloseandthick CopyrightDASSAULTSYSTEMES2002 36 AndnowpracticeinthecontextoftheWrenchBody EntertheWireframeandSurfaceDesignworkbench EnterthePartDesignworkbench Createthesurfaceofthehandle 1 Createaloftedsurfacetolinktheparts 2 Createthesidesurfaceofthehead 3 Createaconnectingsurface 4 Completethewrenchbody 5 CopyrightDASSAULTSYSTEMES2002 37 Exercise Wrenchbody CreatingtheSurfaceoftheHandle Createthesurfaceofthehandlebyrevolvingasplinedefinedin3D 10min CopyrightDASSAULTSYSTEMES2002 38 DoItYourself 1 IntheWIREFRAMEOpenBodycreatethreepoints 115 7 0 122 6 0 and 127 5 0 RenamethemPointA PointBandPointC 2 CreateasplineselectingVertex1thenpointsAtoCandfinallyVertex2 3 Imposehorizontaltangencyattheendpointsofthespline 4 IntheSURFACESOpenBodycreateasurface revolvingthespline360degreesaroundthehorizontallineofthesketch 360 degreerevolutionisneededforthedownstreamcloseoperationtocreateasolidinPartDesign Revolvingsurface 4 Points Spline 1 2 3 Spline1 Vertex2 Vertex1 A B C Partused Wrench body step1 CATPart CopyrightDASSAULTSYSTEMES2002 39 Exercise Wrenchbody CreatingaLoftedSurfacetoLinktheParts Createaloftedsurfacetoassociatetheheadwiththelink 10min CopyrightDASSAULTSYSTEMES2002 40 DoItYourself 1 2 PlaneandSketch 3 1 2 Middlepoints 4 Sketch 4 3 1 IntheWIREFRAMEOpenBodycreateaplanewitha7 2mmdistancefromtheendfaceofthelink 2 Onthecreatedplanecreateanarcofacircle radius 7 2 Definethreecoincidences twobetweentheendpointsofthearcandtheH axisoftheSketcherandonebetweenthecenterpointofthearcandtheV axisoftheSketcher 3 Onthebottomfaceofthehead createanarcpassingthroughthetwoverticesoftheface radius 24 Definefourcoincidences twobetweenthearcandtheverticesofthebottomfaceandtwobetweentheendpointsofthearcandtheH axisoftheSketcher 4 CreatethemiddlepointsofSketch 3 Sketch 4andoftheedgecurveofthelinkendface Offsetplane Linkendface Sketch 3 Sketch 4 Headbottomface Middlepoints Partused Wrench body step2 CATPart CopyrightDASSAULTSYSTEMES2002 41 DoItYourself 2 2 P1usersshouldcreatethethreesectionsloftintwotimes Splinesandline 5 6 Symmetryandjoin 8 9 Loftedsurface 7 5 Createthreesplines twopassingthroughthetwosetsofendpointsofthethreearcsandonepassingthroughthesetofmiddlepointscreatedonthethreearcs ThethreearcsareSketch 3 Sketch 4andtheedgecurveofthelinkendface Imposeanhorizontaltangencytoeachsplineonthelinkend 6 Createalinenormaltotheendfacetothelink length 20 fromPoint 1 7 IntheSURFACESOpenBodycreatealoftedsurfacebyselectingthreesections Sketch 4 Sketch 3andtheedgecurveofthelinkendface threeguidecurves Spline 2 Spline 3andSpline 4 andaspine Line 1 8 ApplyasymmetrytotheloftedsurfacewithrespecttotheXYplane 9 Jointheloftedsurfaceandthesymmetry Spline 2 Spline 3 Spline 4 Line 1 S1 S2 S3 G1 G2 G3 Spine CopyrightDASSAULTSYSTEMES2002 42 Exercise Wrenchbody CreatingtheSideSurfaceoftheHead Createthesidesurfaceoftheheadbyasweepingaprofile Theprofileandguidecurvesarecreatedfromtheexistingcurvesbyprojectionandre limited 10min CopyrightDASSAULTSYSTEMES2002 43 DoItYourself 1 IntheWIREFRAMEOpenBodyextractwithtangencycontinuitytheupperandloweredgesofthehead 2 Splitsketch 4withthesidefaceofthehead 3 IntheSURFACESOpenBodydefinethesidesurface createasweepwithaprofile Split 1 sketch 4split andtwoguidecurves Extract 1andExtract 2 Partused Wrench body step3 CATPart Extractededges Sidefaceofthehead SplitofSketch 4 Sidesurface CopyrightDASSAULTSYSTEMES2002 44 Exercise Wrenchbody CreatingaConnectingSurface Createaconnectsurfaceatajunctionbysketchingtheprofileandrevolvingit 10min CopyrightDASSAULTSYSTEMES2002