CATIA实体模型练习CarJackSupport.doc

Car Jack Support
We will design this Car Jack Support to practice the various ways of using both the Sketcher and Part Design workbenches for designing parts.

Once CATIA is running, activate the Part Design Workbench by clicking on the New icon and select Part in the New dialog box. Click to validate.

Using the Tools -> Options command, be sure that you are working in millimeters.

Using the Tools -> Options command, be sure that the sketcher grid has the following parameters:

Creating Profiles and Pads
In this section, we are going to build two necessary profiles that will allow you to create the main pad.

1. Activate the Sketcher icon , then select the XY plane.
2. Activate the Circle icon , then, using the grid, draw the following circle and cronstrain it (R=60).

3. Leave the Sketcher by selecting the Exit icon .
4. Now, activate the Pad icon .
Using the previously created sketch, build a pad with the following parameters (do not forget to select to validate the pad creation):

5. Now we return in the sketcher by selecting the Sketcher icon and the XY plane.
6. Create the second profile with two rectangles and two circles.

7. Add four corners to get the following profile.

8. Leave the Sketcher by selecting the Exit icon .
9. Now, activate the Pad icon .
10. Using the previously created sketch, build a pad with the following parameters (do not forget to select to validate the pad creation):

You get:

Creating Draft Angles
In this session, we are going to draft angles.

1. Click on the Draft Angle icon , the Draft Definition dialog box appears.

2. Select the faces to be drafted and the neutral element.

You get:

3. Use the same methode to create the second draft. Use the following parameters.

You get:

Creating Edge Fillets
In this session, we are going to build edge fillets.

1. Click on the Edge Fillet icon , the Edge Fillet Definition dialog box appears.

2. Select the edges to be filleted enter 30 as the radius, then select .

You get:

3. Using the same methode, create the following fillets.

You get:

Creating Additional Profiles and Pads
In this session, we are going to build two other elements. We need to return in the sketcher to draw a profile.

1. Activate the Sketcher icon , select the XY plane then draw a circle as shown below.

2. Leave the Sketcher by selecting the Exit icon .
3. Now, activate the Pad icon .
4. Using the previously created sketch, build a pad with the following parameters (do not forget to select to validate the pad creation):

You get:

5. We are going to create another profile with the following caracteristics. Activate the sketcher on the YZ plane, and create and constrain the following profile.

6. Leave the Sketcher by selecting the Exit icon .
7. Now, activate the Pad icon .
8. Using the previously created sketch, build a pad with the following parameters (do not forget to select to validate the pad creation):

You get:

Creating Edge Fillets for the Additional Pads
In this session, we are going to create the following fillets.

1. Click on the Edge Fillet icon , the Edge Fillet Definition dialog box appears.

2. Click on the edges to be filleted, enter 3 as the radius then select .

You get:

Creating Holes
In this session, we are going to build the following holes.

1. Select the following surface:

2. Click on the Hole icon and enter the following parameters in the Hole Definition dialog box.

3. We are going to move the hole center at the Origin point.

4. In the Hole Definition dialog box, click on the Positioning Sketch icon to constrain the hole. Select the following point and edge.

5. Click on the Constraints Defined in Dialog Box icon

6. Click on Concentricity and validate with

You get:

7. Now we are going to create a counterbored hole.
8. Select the following face.

9. Click on the hole icon and enter the following parameters, then select :

You get:

We are going to create another counterbored hole.
10. First, select the following face:

11. Click on the Hole icon and enter the following parameters:

12. Use the Positioning Sketch to constrain the center of the hole at the following coordinates as shown below.

13. Leave the Sketcher by selecting the Exit icon .
You get:

Now we can create all the other V-bottom holes. So select the following face

14. Click on the Hole icon and create a V-bottom hole with the following parameters and select .

15. Now click on the following face.

16. Click on the Hole icon and create an other V-bottom hole with the following parameters and select

You get:

Now we are going to create two other V-bottom holes.

17. Select the following face:

18. Click on the Hole icon and create a hole with the following parameters:

19. Use the Positioning Sketch icon to constrain the center of the hole

20. Leave the Sketcher by selecting the Exit icon .
21. Create the second hole perpendicular to the first one with the following parameters:

You get:

22. Create another V-bottom hole.

You get:

Now we are going to create the following holes.

23. Select the following face.

24. Click on the Hole icon and enter the following parameters in the dialog box.

25. Click on Normal to surface and select the following edge (parallel to the XY plane).

26. Click on Positioning Sketch to move the hole and enter the parameters:

27. Leave the Sketcher by selecting the Exit icon .
The second hole is on the same face. It has a length of 82mm and it is parallel to the hole created before.

You get:

Now we are going to create another hole.
28. Select the following face

29. Create a hole and move it to the following coordinates

You get:

Now we are going to create the last hole of the support.
30. Select the following face:

31. Create the hole with the following parameters:

You get:

Creating Grooves
In this session, we are going to build grooves. They are built with a closed profile and a rotation axis.

1. Activate the Sketcher icon , select the XZ plane and draw the profile with the following caracteristics.

2. Leave the Sketcher by selecting the Exit icon .
3. Now activate the Groove icon .

You get:

Now we are going to create another groove.
4. Activate the Sketcher icon , select the XZ plane and draw the profile with the following caracteristics.

5. Leave the Sketcher by selecting the Exit icon .
6. Now activate the Groove icon .

You get:

Creating a Chamfer.
In this session, we are going to create a chamfer.

7. Select the edge to be chamfered:

8. Click on the Chamfer icon and enter the following parameters into the Chamfer Definition dialog box and select .

You get:

Creating Pockets.
In this session, we are going to build two pockets.

1. Activate the Sketcher icon , select the top face and draw the profile as follows.

2. Leave the Sketcher by selecting the Exit icon .
3. Click on the Pocket icon and write the following parameters into the Pocket Definition dialog box.

You get:

We are going to create another pocket.
4. Activate the Sketcher icon , select the bottom face and draw the profile with the following caracteristics.

5. Leave the Sketcher by selecting the Exit icon .
6. Click on the Pocket icon and enter the following parameters into the Pocket Definition dialog boxthen select .

You get:

Creating Edge Fillets.
In this session, we are going to create a fillet using the Keep Edge option.

1. Select the edge you want to be filleted.

2. Click on the Fillet icon and enter 3 as the radius, then select and select the purple edge as the edge to be kept. Select .

You get:

You can save the Part.