catia钣金设计教程.ppt

1,钣金设计,CATIA培训教程,2,课程介绍,先修课程: Catia V5基础 Catia V5零件设计 Catia V5装配设计 Catia V5工程图设计 :,课程目的 本课程研究利用CATIA V5建立和编辑修改钣金特征和零件的方法学员对象 从事Catia V5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（Cut Outs），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,沈飞工学院,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 Part Body,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（Power Copy）,,,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,General Process,From Assembly create a new part (Top-down approach),or Create a new part insert in assembly (Bottom-up approach),,,Assign Material Parameters,Create different types of walls,Add冲孔and 3D Features,Add different types of弯曲,Modify Wall Thickness and Wall Sizes,,,,,,,Creating a Flat View of the part,10,钣金Parameters,In this lesson, you will see how to start a钣金part by assigning the basic parameter needed to create the part.,Defining钣金Parameters,11,Before starting to create any钣金part, define the钣金Parameters of the part. These are common characteristics that when defined will make creation easier and thus limit your need to supply data during creation of the part.,Defining Parameters,Parameters Tab,Bend Extremities Tab,12,Parameters are the common characteristic used in the creation of the part. They are as simple as stating the dimensional requirement of the material and bend radius,What are Parameters ?,It is important to note here that only one set of parameters can be assigned in a CATPart, therefore you are limited to one part per document.,,,,,,,13,In order to start there are three basic parameters that need to be assigned: Material Thickness Bend Radius Bend Relief Type,What Parameters need to be defined ?,Bend Radius,Types of different Bend Reliefs,Square Relief,Minimum with no relief,Round Relief,Linear,Tangent,Maximum,,,,,,Material Thickness,,,Remember, the Bend Radius assigned here is the standard Bend Radius to be used on the part. This will be used to create all Bend Radii unless specified otherwise during the creation.,14,,Defining Material Thickness,Select the钣金Parameter Icon,1,Activate the Parameters tab in the钣金Parameters window,2,With the Thickness field active, key in the new value,3,If the Material Thickness is all you are changing, select OK to end the modification,,,4,,,,Create parts,,15,,Defining Material Bend Radius,Select the钣金Parameter Icon,1,Activate the Parameters Tab in the钣金Parameters window,2,Key in the new Bend Radius,,,,,Bend radii can be as small as 0.01 mm. 0 Radius is not available yet.,3,,,4,Select OK,Create parts,16,,Selecting the Bend Relief Type,Select the钣金Parameter Icon,1,Select the Bend Extremities Tab in the钣金Parameters window,2,,,Select the type of Bend Relief displayed in the window,,,,3,The relief with its dimensions are displayed,4,,If the Bend Radius is all you are changing, select OK to end the modification,,,5,Where possible bend relief values, L1 and L2 can be modified to suit your special needs,Create parts,17,In this lesson, you will see how to start a钣金part and different ways to define walls,钣金Walls,Defining Walls from Scratch Defining Walls on Existing Parts 钣金Walls recap exercise,18,You will learn how to create the 5 basic types of walls offered in the钣金workbench,Defining Walls from Scratch,Profilewall,Wall on Edge,Extruded Wall,Rolled Wall,Pierced Wall,,19,To start a钣金part, create some type of wall first to start from. It can be as little as one line that you can extrude a wall from or a complex profile to create many walls from or a profile to make an individual wall.,What are walls ?,Be aware that where you select edges, top vs bottom will drive a different proposal for your wall. For example, a top selection may force your wall to go in an upward direction while a bottom selection may force your wall in a downward direction.,An example of how different ways could be used to create this part is as follows: Wall 1 could have been created first as a flat profile wall and then walls 2, 3, and 4 could have been done as walls on edge Wall 1, 2, and 3 could have been created with an extrude and then wall 4 could have been done as a wall on edge,1,2,3,4,20,The Profile wall is used to create a wall of a specific shape. Often used as a first wall of a part,When to use the various types of walls ?,The Extruded walls are used to create a group of walls using a specific profile. Here it is used to build a simple “U” shaped chassis or a hat section used to strengthen other parts.,The Wall on Edge is used to create a wall on an edge of an existing wall.,,,,You can also select an edge, click on the wall icon and draw the sketch you want,,,21,,Profile Walls,Enter the Sketcheron xy planeand select the profile icon,,Draw the Sk。