CATIA 曲面基礎(chǔ)教程

1、1線框和曲面設(shè)計(jì)基礎(chǔ)線框和曲面設(shè)計(jì)基礎(chǔ)2課程介紹課程介紹課程目標(biāo)課程目標(biāo)在這個(gè)課程介紹如何創(chuàng)建線框和用線框和基本曲面特征裝飾在這個(gè)課程介紹如何創(chuàng)建線框和用線框和基本曲面特征裝飾3維零件設(shè)計(jì)維零件設(shè)計(jì)New V5 users需具備條件需具備條件Part Design, Sketcher1 day3線框和曲面設(shè)計(jì)入門線框和曲面設(shè)計(jì)入門熟悉熟悉線框和曲面設(shè)計(jì)工作臺(tái)（線框和曲面設(shè)計(jì)工作臺(tái)（Wireframe and Surface Design workbench） 用戶界面用戶界面4用戶界面用戶界面5線框造型線框造型熟悉線框造型基礎(chǔ)熟悉線框造型基礎(chǔ)創(chuàng)建點(diǎn)創(chuàng)建點(diǎn)創(chuàng)建線創(chuàng)建線創(chuàng)建平面創(chuàng)建平面創(chuàng)建曲線創(chuàng)建

2、曲線6定定義義點(diǎn)點(diǎn)對(duì)話對(duì)話框提供不同的方法框提供不同的方法創(chuàng)創(chuàng)建點(diǎn)建點(diǎn)1點(diǎn)點(diǎn)圖標(biāo)圖標(biāo)2選擇選擇點(diǎn)點(diǎn)類類型型選項(xiàng)選項(xiàng)中的中的一個(gè)一個(gè)類類型型3輸輸入點(diǎn)的信息在點(diǎn)定入點(diǎn)的信息在點(diǎn)定義義框并且框并且確確認(rèn)認(rèn)對(duì)話對(duì)話框的內(nèi)容隨著點(diǎn)框的內(nèi)容隨著點(diǎn)類類型型選選項(xiàng)項(xiàng)改改變變而改而改變變點(diǎn)點(diǎn) (1/2)點(diǎn)用來(lái)支持所有幾何單元的創(chuàng)建并用來(lái)作為所有創(chuàng)建的參考點(diǎn)用來(lái)支持所有幾何單元的創(chuàng)建并用來(lái)作為所有創(chuàng)建的參考7點(diǎn)點(diǎn) (2/2)CoordinatesOn curveOn planeOn surfaceCircle center不同的參數(shù)或元素創(chuàng)建點(diǎn)不同的參數(shù)或元素創(chuàng)建點(diǎn) :Tangent on curvePoint

3、 betweenSeveral points on a curve8線線定定義對(duì)話義對(duì)話框提供不同的方法框提供不同的方法創(chuàng)創(chuàng)建建線線1點(diǎn)點(diǎn)選圖標(biāo)選圖標(biāo)2選擇選擇一個(gè)一個(gè)線類線類型型選項(xiàng)選項(xiàng)對(duì)話框的內(nèi)容隨著線類對(duì)話框的內(nèi)容隨著線類型選項(xiàng)改變而改變型選項(xiàng)改變而改變3輸入線的信息在線定義框并輸入線的信息在線定義框并且確認(rèn)且確認(rèn)線線 (1/2)線可作為引導(dǎo)線，參考，軸，方向或加入創(chuàng)建其他幾何元素線可作為引導(dǎo)線，參考，軸，方向或加入創(chuàng)建其他幾何元素9線線 (2/2)Line Point-PointLine Point-DirectionLine Angle/Normal to curveLine tan

4、gent to curveLine Normal to surface不同的參數(shù)或元素創(chuàng)建點(diǎn)不同的參數(shù)或元素創(chuàng)建點(diǎn) :Bisecting line10平面定義對(duì)話框提供不同的方法創(chuàng)建平面平面定義對(duì)話框提供不同的方法創(chuàng)建平面1點(diǎn)點(diǎn)選選生成平面生成平面圖標(biāo)圖標(biāo)2選擇選擇一個(gè)平面一個(gè)平面類類型型選項(xiàng)選項(xiàng)對(duì)話框的內(nèi)容隨著平面對(duì)話框的內(nèi)容隨著平面類型選項(xiàng)改變而改變類型選項(xiàng)改變而改變3輸入平面的信息在平面定義輸入平面的信息在平面定義框并且確認(rèn)框并且確認(rèn)創(chuàng)建平面創(chuàng)建平面 (1/5)用平面作為參考元素去創(chuàng)建新的幾何元素或切斷元素用平面作為參考元素去創(chuàng)建新的幾何元素或切斷元素 11創(chuàng)建平面創(chuàng)建平面 (2/5)O

5、ffset planePlane parallel through pointPlane with angle to planePlane through 3 pointsPlane through 2 linesPlane through point and line不同的參數(shù)或元素創(chuàng)建平面不同的參數(shù)或元素創(chuàng)建平面 :12創(chuàng)建平面創(chuàng)建平面 (3/5)Plane through planar curvePlane normal to curvePlane tangent to surfacePlane from equationPlane mean through pointsPlanes b

6、etween two planes13創(chuàng)建平面創(chuàng)建平面 (4/5) : 在兩平面之間生成多平面在兩平面之間生成多平面創(chuàng)建平面實(shí)例在兩個(gè)平面之間創(chuàng)建平面實(shí)例在兩個(gè)平面之間 :4 instances 14創(chuàng)建平面創(chuàng)建平面 (5/5) : 多平面生成多平面生成通過(guò)一個(gè)存在的平面通過(guò)一個(gè)存在的平面創(chuàng)建平面實(shí)例創(chuàng)建平面實(shí)例:Origin 15顯顯示示對(duì)話對(duì)話框，例如框，例如1點(diǎn)點(diǎn)擊圖標(biāo)選擇擊圖標(biāo)選擇曲曲線類線類型型23輸入曲線的信息在曲線定義輸入曲線的信息在曲線定義框并且確認(rèn)框并且確認(rèn)曲線曲線 (1/3)曲線作為引導(dǎo)線或參考創(chuàng)建其他幾何元素或作為面的邊界曲線作為引導(dǎo)線或參考創(chuàng)建其他幾何元素或作為面的邊界

7、16曲線曲線 (2/3)Curve projected onto a supportCombined curveReflect lineIntersection curveCircles創(chuàng)建不同類型曲線創(chuàng)建不同類型曲線 :Parallel curve17曲線曲線 (3/3)SplineHelixCornerConnect curveSpiralConic18創(chuàng)建基本曲面創(chuàng)建基本曲面熟悉創(chuàng)建基本曲面熟悉創(chuàng)建基本曲面通過(guò)外形創(chuàng)建面通過(guò)外形創(chuàng)建面通過(guò)邊界創(chuàng)建面通過(guò)邊界創(chuàng)建面通過(guò)其他面創(chuàng)建面通過(guò)其他面創(chuàng)建面創(chuàng)建放樣曲面創(chuàng)建放樣曲面從面抽取元素從面抽取元素19通過(guò)外形創(chuàng)建面通過(guò)外形創(chuàng)建面一個(gè)閉合或不閉合

8、的輪廓給定一個(gè)閉合或不閉合的輪廓給定一根導(dǎo)線和一個(gè)面，或兩根導(dǎo)一根導(dǎo)線和一個(gè)面，或兩根導(dǎo)線，可以創(chuàng)建一個(gè)掃掠面線，可以創(chuàng)建一個(gè)掃掠面一個(gè)閉合或不閉合的一個(gè)閉合或不閉合的輪廓給定一個(gè)方向和限輪廓給定一個(gè)方向和限制，創(chuàng)建一個(gè)拉伸面制，創(chuàng)建一個(gè)拉伸面給定一個(gè)旋轉(zhuǎn)軸和角度可以創(chuàng)給定一個(gè)旋轉(zhuǎn)軸和角度可以創(chuàng)建一個(gè)旋轉(zhuǎn)面建一個(gè)旋轉(zhuǎn)面20創(chuàng)建球體創(chuàng)建球體21通過(guò)邊界創(chuàng)建面通過(guò)邊界創(chuàng)建面The blend surface is created between two curves lying each on a support ; the evolution of the surface between the

9、 two curves is defined by parameters.The fill surface is created between joined curves which may lie on a support ; the evolution of the surface inside the contour is defined by parameters. 22從其他曲面創(chuàng)建曲面從其他曲面創(chuàng)建曲面You can create several offset surfaces at the same time. The offset surface is created fro

10、m an existing surface, giving an offset value and a direction. The resulting surface is parallel to the initial one. 23創(chuàng)建放樣曲面創(chuàng)建放樣曲面幾個(gè)參數(shù)能建立定義放樣曲面幾個(gè)參數(shù)能建立定義放樣曲面 :TangencyGuide curveClosing pointSpineCouplingLimitationManual coupling24幾何操作功能幾何操作功能修補(bǔ)元素修補(bǔ)元素切割和修剪元素切割和修剪元素從曲面提取元素從曲面提取元素適用轉(zhuǎn)換適用轉(zhuǎn)換推斷元素推斷元素創(chuàng)建接近元

11、素創(chuàng)建接近元素創(chuàng)建陣列創(chuàng)建陣列25修補(bǔ)元素修補(bǔ)元素當(dāng)合并幾個(gè)曲面時(shí)修補(bǔ)操作當(dāng)合并幾個(gè)曲面時(shí)修補(bǔ)操作可以填充間隙可以填充間隙用用Join這個(gè)操作可以集合一個(gè)單一元這個(gè)操作可以集合一個(gè)單一元素或幾個(gè)相鄰的曲面，幾個(gè)相鄰的曲素或幾個(gè)相鄰的曲面，幾個(gè)相鄰的曲線線分解一個(gè)多元素曲面或曲線到獨(dú)分解一個(gè)多元素曲面或曲線到獨(dú)立數(shù)據(jù)元立數(shù)據(jù)元Split surfaceRestored surface恢復(fù)整個(gè)面即使面被多次修剪?；謴?fù)整個(gè)面即使面被多次修剪。 The restored surface is a datum element.26切割和修剪元素切割和修剪元素修剪元素只可以保留每個(gè)元素修剪元素只可以保留每

12、個(gè)元素的一部分的一部分用一個(gè)或幾個(gè)幾何元素（用一個(gè)或幾個(gè)幾何元素（Cutting elements）去切割）去切割另一個(gè)幾何元素（另一個(gè)幾何元素（Element to cut） 不論是否有支撐定義，切割和修不論是否有支撐定義，切割和修剪都將被執(zhí)行剪都將被執(zhí)行27從曲面提取元素從曲面提取元素Face extractionEdge extraction可以從一個(gè)曲面給予傳播條件提取邊界，曲面或曲線可以從一個(gè)曲面給予傳播條件提取邊界，曲面或曲線Boundary extraction with limitsThe Complementary mode option allows you to de-s

13、elect the elements to extract and select the non-selected elements.萃取一些元素萃取一些元素28顯顯示示轉(zhuǎn)換對(duì)話轉(zhuǎn)換對(duì)話框框1點(diǎn)點(diǎn)擊擊如何一個(gè)如何一個(gè)轉(zhuǎn)換圖標(biāo)轉(zhuǎn)換圖標(biāo)23輸入轉(zhuǎn)換的信息在定義框并且確認(rèn)輸入轉(zhuǎn)換的信息在定義框并且確認(rèn)轉(zhuǎn)換轉(zhuǎn)換 (1/2)Transformations are used to modify the size, location, orientation, etc. of a wireframe or a surface element.一個(gè)操作可以同時(shí)轉(zhuǎn)換幾個(gè)元一個(gè)操作可以同時(shí)轉(zhuǎn)換幾個(gè)元素素29轉(zhuǎn)換轉(zhuǎn)

14、換 (2/2)六種轉(zhuǎn)換類型:TranslationRotationSymmetryScalingAffinityAxis to Axis 30推斷元素推斷元素Finally you will define the type of continuity and transition.First select the element boundary which will be extrapolated, then the element itself.You will then choose the extrapolation mode : length or limit.You may hav

15、e to extrapolate a curve or surface to extend it to other geometry and thus be able to later trim, split or intersect these elements.31創(chuàng)建接近元素創(chuàng)建接近元素The original element is transferred to the Hide space.You will select the multiple element from which you want to create the Near element.You will then s

16、elect a reference element, i.e. a point located next to the entity to be defined as Near element.Some construction elements are made up of several entities. You may need to use only part of a multi-entity element.You can create near elements from sketches or surfaces.32創(chuàng)建陣列創(chuàng)建陣列Reference elementSurfa

17、ce to patternYou can create circular or rectangular patterns of wireframe or surface elements.Element to patternReference element33完成幾何元素在零件設(shè)計(jì)工作臺(tái)完成幾何元素在零件設(shè)計(jì)工作臺(tái)通過(guò)曲面創(chuàng)建實(shí)體通過(guò)曲面創(chuàng)建實(shí)體34For each type of feature a dialog box is displayed.Select the surface to be processed.1Click on the appropriate Surface-Bas

18、ed Feature icon.23Confirm feature creation.通過(guò)曲面創(chuàng)建實(shí)體通過(guò)曲面創(chuàng)建實(shí)體(1/2)You may need to create a surface just for using it in a solid body. The surface is integrated into the body design.35通過(guò)曲面創(chuàng)建實(shí)體通過(guò)曲面創(chuàng)建實(shí)體(2/2)Split BodyThicken SurfaceClose SurfaceSew SurfaceFour ways of creating solids from surfaces are av

19、ailable :36修改幾何元素修改幾何元素 編輯元素編輯元素37編輯元素編輯元素The surface is updated according to the new parameters.You will modify the axis and the angle of revolution of this surface.You can modify parameters either entering new values or making new selections.You can edit elements after part creation to change some

20、 of the parameters and thus make a new version of the part.38工具運(yùn)用工具運(yùn)用You will become familiar with some tools used for managing wireframe and surfaces.Stacking CommandsManipulating ElementsCreating Datum FeaturesWorking on a SupportUpdating a PartSelecting and Renaming an Open BodyMoving an Element

21、within an Open BodyApplying Material onto a Surface39You define the parameters of the construction element.Stacking CommandsWhile creating an element you may need a construction element that you will create on the fly.The construction element is created and selected at the same time.When using the s

22、tacking command capability you can check the status of the stack in the Running Commands window.Stacking commands allows you to create construction elements while creating an element which requires those construction elements.40Manipulating ElementsYou will cut or copy one or several elements.Then s

23、elect the element after which you want to position the cut/copied elements and paste them.orYou can also delete an element from the specification tree.41創(chuàng)建數(shù)據(jù)特征創(chuàng)建數(shù)據(jù)特征Clicking on the Create Datum icon de-activates the History mode.You will then create the datum feature element and finally modify one o

24、f its parents.A datum feature is an element which has no link (history) with the elements used to build it (parent elements). 42Working on a Support (1/2)You can select a plane or a surface to use it as a support for further element creation.Support plane = YZWith the Snap to Point capability the cr

25、eated points are located at the nearest intersection of the grid.Support surface = Extrude.1When you create a point after selecting the surface as a support the Point Definition window automatically displays the option On surface.43Working on a Support (2/2)Creating a Support from a PlaneGrids are persistent, they are added to the specification tree.To deactivate the current grid :With the contextual menuor using the Working Support Activity iconDirectly change the grid settings44更新一個(gè)零件更新一個(gè)零件更改默更改默認(rèn)認(rèn)更新模式更新模