《CATIA V5 Workbook Release 3.pdf》由会员分享，可在线阅读，更多相关《CATIA V5 Workbook Release 3.pdf（38页珍藏版）》请在三一文库上搜索。
1、CATIA V5 Workbook Release 3 Text by: Richard Cozzens Southern Utah University Graphics by: Brandon Griffiths ? Schroff Development Corporation PUBLICATIONS CATIA V5 Basic Workbook 1 Figure 1.1 Lesson 1 Sketcher Work Bench Introduction to the Sketcher Work Bench This lesson will take you through eac
2、h step in creating a simple sketch and part that will be referred to as the “L Shaped Extrusion”. Later in this lesson you will be asked to save this part (file) as the “L Shaped Extrusion.CATPart”. The completed “L Shaped Extrusion” is illustrated in Figure 1.2. In some cases optional processes wil
3、l be explained. Referenced illustrations will be used to help explain certain processes and to compare results. It is important that you complete and understand every step in this lesson, otherwise you will have difficulties in future lessons where much of the basic instruction will not be covered (
4、it will be assumed that you know it). The concepts taught in these steps will give you the tools to navigate through the basics of the Sketcher Work Bench. Following the step-by-step instructions there are twenty questions to help you review the major concepts covered in this lesson. There are pract
5、ice exercises at the end of this lesson. The practice exercises will help you strengthen and test your new found CATIA V5 knowledge. This lesson covers the most commonly used tools in the Sketcher Work Bench. The less common and/or advanced tools will be covered in later lessons and/or in the Advanc
6、ed Workbook. It is not the intent of this book to be a comprehensive reference manual but provide basic instructions for the most common tools and functions in CATIA V5. CATIA V5 in the Windows NT environment allows multiple methods of accomplishing the same task. You are encouraged to explore all t
7、he different options. Sketcher Work Bench Tool Bars There are three standard tool bars found in the Sketcher Work Bench. The three tool bars are shown below. The individual tools found in each of the three tool bars are labeled to the right of the tool icon. Some tools have an arrow located at the b
8、ottom right of the tool icon. The arrow is an indication that there is more than one variation of that particular type of tool. The tools that have more than one option are listed to the right of the default tool. To display the other tool options you must select and hold the left mouse button on th
9、e arrow as shown in Figure 1.1. This will bring up the optional tools Select arrow Optional tools Sketcher Work BenchCreating A Simple Part CATIA V5 Basic Workbook 1.2 window. Move your mouse to the desired tool and release the mouse button. The desired tool icon now becomes the default tool, shown
10、on the tool bar. All you have to do to select the new default tool is to double click on it. The Operation Tool Bar Tool BarTool Name (default) Tool Type Options . Tools covered in this lesson: Corner, Chamfer, Trim and Break. Symmetry and Project 3D Elements tools will be covered in Lesson 2. The P
11、rofile Tool Bar Tool BarTool Name (default) Tool Type Options . Tools covered in this lesson: Profile, Rectangle, Circle, Line and Point. Corner Chamfer Trim Break Symmetry Project 3D Elements Symmetry, Translate, Rotate, Scale, Offset Project 3D Elements, Intersect 3D Elements Profile Rectangle Cir
12、cle Spline Ellipse Line Axis Point Rectangle, Oriented Rectangle, Parallelogram, Oblong Profile, Curved Oblong Profile, Keyhole Profile, Hexagon Circle, Three Point Circle, Circle Using Coordinates, Tri-Tangent Circle, Three Point Arc, Three Point Arc Starting With Limits, Arc Ellipse, Parabola By F
13、ocus, Hyperbola By Focus Line, Bi-Tangent Line Point By Clicking, Point By Using Coordinates, Equidistant Points Note: Arrow indicates multiple tools are available. Click on the arrow and the other tool options will appear. Sketcher Work BenchCreating A Simple Part CATIA V5 Basic Workbook 1.3 The Co
14、nstraints Tool Bar Tool BarTool Name (default) Tool Type Options . All of the constraint tools are covered in this lesson. NOTE: The three tool bars are by default located on the right side of the screen. The three tool bars contain too many tools to show all of them at one time. To view and have ac
15、cess to all the tools you can select the shaded tab located at the top of each tool bar and drag it anywhere on the screen. This is important because when you get to Step 4, by the default setup you will not be able to visually locate the Operation tool bar. You will have to select and drag the Oper
16、ation tool bar from the right bottom side of the screen to the location you select. Steps To Creating A Simple Part Using The Sketcher Work Bench You are now going to use the tools just introduced to you to create an “L Shaped Extrusion”. The part is referred to as an “L Shaped Extrusion” because it
17、s profile or shape is similar to an upper case letter L. When you complete all the steps in this lesson the result should look similar to Figure 1.2. Auto Constraint Constraints Defined In Dialog Box Animate Constraint Constraint Figure 1.2 Sketcher Work BenchCreating A Simple Part CATIA V5 Basic Wo
18、rkbook 1.4 Figure 1.3 1. Start CATIA V5 From the NT Desktop double click on the CATIA V5R3 icon. Be patient it may take a few moments to bring up the CATIA V5 start logo and the actual CATIA V5 working window. Figure 1.3 shows what the screen should look like. If you are not able to finish all the s
19、teps in this lesson in one session you can jump to Step 23, which covers saving and exiting CATIA V5. This will allow you to save your work for your next session. CATIA V5R3.lnk Sketcher Work BenchCreating A Simple Part CATIA V5 Basic Workbook 1.5 2Select The Sketcher Work Bench. Every time you star
20、t CATIA V5 the CATIA V5 screen will appear as it does in Figure 1.3. The “Welcome to CATIA V5” pop up window will be prompting you to select a work bench. The default work bench is Product Structure. For this lesson you will need to select the Sketcher Work Bench. Notice as you select the Sketcher W
21、ork Bench that the tool bars on the right hand of your screen change and the “Welcome to CATIA V5” pop up window disappears. If your CATIAV5 screen and/or your Sketcher Work Bench screen are not maximized, maximize them using the windows function at the top right of the screen. For future reference
22、there are two methods to select a work bench in CATIA V5. As you start CATIA V5 you are prompted by the default method. Using the “Welcome to CATIA V5” pop up window is one way. Once you have selected a work bench and the “Welcome to CATIA V5” window has disappeared you can bring it back up by selec
23、ting the Work Bench icon in the top right of your screen, reference Figure 1.4. The term work bench is used generically because the Work Bench icon showing will be the current active work bench. Selecting that work bench will bring up the “Welcome to CATIA V5” pop up window. The other method of sele
24、cting another work bench is by selecting the Start icon in the top left side of the screen, reference Figure 1.4. This will bring up a pull down menu that includes all of the work benches. Double click on the work bench you want to use, in this case the Sketcher Work Bench. Figure 1.4 shows what the
25、 menus look like on the screen for both methods described above. It is not possible to use both methods at the same time as shown in Figure 1.4 you can only use one method at a time. Sketcher Work BenchCreating A Simple Part CATIA V5 Basic Workbook 1.6 Figure 1.4 NOTE: Selecting the Work Bench icon
26、method will bring up the “Welcome to CATIA V5” pop up window. This window will contain only the default work benches at the time CATIA V5 was installed. This window can be customized. If your system has been customized your “Welcome to CATIA V5” window may have different work benches. The Sketcher W
27、ork Bench should be included in the default window. 3Specify A Working Plane The next step is to create a 2 dimensional profile of the part. The Sketcher Work Bench is a two dimensional (planar) work area. To use the Sketcher Work Bench you must specify which plane the profile is to be created on. S
28、pecifying the plane can be done several different ways. 3.1 Select (highlight) the desired plane from the graphical representation in the center of the screen as shown in Figure 1.5. Notice as a particular plane is selected the equivalent plane in the Specification Tree is highlighted. If the Specif
29、ication Tree isnt showing the branches with the Pull down menu Pop up window Start Menu Work bench icon (this shows the Part Design Work Bench is the current active work bench. Sketcher Work BenchCreating A Simple Part CATIA V5 Basic Workbook 1.7 XY plane YZ plane ZX plane planes, it will need to be
30、 expanded. To do this just select the Plus symbol to the left of the Specification Tree or double click on the branch you want expanded. 3.2 The step described above can be reversed. Select the plane in the Specification Tree and the coordinating plane in the center of the screen will also be highli
31、ghted. 3.3 Other planes, surfaces and/or other planner objects can also be selected to define the Sketcher plane. This option will be covered in more detail later in the book. For this lesson select the ZX plane as shown in Figure 1.5. 4 Entering the Sketcher Work Bench Once a plane is selected the
32、screen will animate, rotating until the selected plane is parallel to the computer screen (perpendicular to you, true size). The default grid will also appear. You are now officially in the Sketcher Work Bench but before you create the planar profile of the “L Shaped Extrusion”, you need to customiz
33、e the grid. NOTE: As mentioned in the introduction, CATIA V5 is Windows compliant. This means that there are several methods available to complete almost every task. ZX plane Figure 1.5 Specification Tree Sketcher Work BenchCreating A Simple Part CATIA V5 Basic Workbook 1.8 5 Customizing The Grid 5.
34、1 Go to the top tool bar in the pull down menu and click on Tools, Options as shown in Figure 1.6. This brings up file tab options on the right side of the screen and file type options on the left (Figure 1.7). From the options on the left select Part, the tabbed options on the right change accordin
35、gly. 5.2 Select Sketcher. There are four main options under Sketcher; you only need to use two of them at this time, Grid and Sketch Plane. 5.3 The first option under Grid allows the user to select Display grid or not select it. For this particular exercise check the Display option. 5.4 The second o
36、ption is to allow the user to snap to the grid points. For this particular exercise check the Snap To option. 5.5 The third option is Primary Spacing. The user can set the desired spacing. If the default measurement is in metric the spacing will be in mm. To change this default complete the followin
37、g steps: 5.5.1 Select the General option on the left hand option bar. This is in the same window as described in Step 5.1 above. 5.5.2 Slide the File tab to the right till you find the Units tab, select it. The window on the screen should now look like Figure 1.8. 5.5.3 Highlight the Length option a
38、t the top of the list. 5.5.4 The length option will appear at the bottom of the window list. 5.5.5 Selecting the down arrow will give you a list of all the types of length measurements. For this exercise select inches. 5.5.6 Now go back to the Sketcher options, by selecting the Part option in the le
39、ft window and selecting the Sketcher tab on the right. Notice the Primary Spacing option is now showing in inches. Select Figure 1.6 Sketcher Work BenchCreating A Simple Part CATIA V5 Basic Workbook 1.9 Figure 1.8 5.6 The forth option under Grid is Graduations. This option divides the Primary Spacin
40、g in divisions defined by you, reference Figure 1.7. As an example if the Primary Spacing is 1” and the Graduations is 1 (division), the grid will remain in 1in grids. If the Primary Spacing is 1” and the Graduations set to 2 (divisions), the grid will be .5 in. To change the Primary Spacing and the
41、 Graduations just select the value in the window and type in the new value. When entering the values for the Primary Spacing it is not necessary to enter the measurement type. The lowest value allowed for Graduations is 1 (zero will not be accepted). For this exercise enter 1 for the Primary Spacing
42、 and enter 10 for the 5.1 5.2 5.35.45.55.6 5.5.1 5.5.2 5.5.3 5.5.4 5.5.6 Figure 1.7 5.5.5 Sketcher Work BenchCreating A Simple Part CATIA V5 Basic Workbook 1.10 Graduations. Select the OK button to apply the Primary Spacing and the Graduations values. The Primary Spacing is represented in the Sketch
43、er Work Bench with a solid line while the Graduations is a dotted line (Figure 1.9). It is important to remember that the zoomed view on the screen will dictate how the Primary Spacing and Graduations are represented. If you are zoomed out, the Graduations and Primary Spacing could look very similar
44、 to each other, not distinguishable. If you find yourself in this situation use the Zoom tool on the tool bar at the bottom of the screen (Figure 1.10). Continue to zoom in until the Primary Spacing and Graduations are distinguishable. 6 Creating Geometry Using The Profile Tools You are now ready to
45、 create the profile (periphery) of the “L Shaped Extrusion”. The first tool you will use from the Profile tool bar is the Point by Clicking tool, covered in Step 7. The second tool is the Line tool , covered in Steps 8, 9 and 10. The third tool is the Profile tool , covered in Step 11. On the Tools
46、tool bar at the bottom right of the screen make sure the Snap To Point is on (highlighted), the Geometrical Constraints is on and the Dimensional Constraints is on (Figure 1.13). With this you are ready to create geometry! 7 The Starting Point The (0,0) point in Sketcher Work Bench is the intersecti
47、on of the Horizontal (H) and Vertical (V) axis. It can also be described as the intersection of the three planes (XY, ZX and YZ). Reference Figure 1.5, 1.9 and 1.12a. The starting point for your profile will be (1,1). You should be able to locate the (1,1) location using the Primary Spacing and Graduations. To visually verify the location and to Anchor your first two lines to the (1,1) location create a point at the (1,1) coordinate location. To create a point complete the following steps