Tài liệu Ball Bearing 6201 Metric ppt

Pick FRONT datum plane as Sketch Plane, accept default Sketch Orientation Reference and click the Sketch button... Be sure to draw the horizontal centerline first since it will be used a

ME-430 Introduction to Computer Aided Design

Ball Bearing 6201 Metric

Pro/ENGINEER Wildfire 2.0

By: Dr Herli Surjanhata

In a system window, create a new directory called ME-430 (e.g H:\ME-430)

From File pull down menu, select Set Working Directory

Select Working Directory dialog box appears

Select the ME-430 directory

to highlight it and select OK All files created in this session will be stored in

ME-430 directory

Note:

You can also create a new directory by selecting

Pick the Create a new object icon

Type in ball_bearing for the name of the new part

Un-check Use default template

The default units of Pro/E is

mmns_part_solid Click OK since the part will have

mm units

Click OK in the New dialog box The default datum planes

appear in the graphics area

CREATE BEARING HOUSING USING REVOLVED

PROTRUSION

Create the base feature – Pick the Revolve Tool icon

In the dashboard, click

Click Define

Pick FRONT datum plane as Sketch Plane, accept default (Sketch Orientation Reference) and click the

Sketch button

Click the Close button in the

References dialog box

Click the small forward > icon to expand,

and pick Draw two centerlines thru coordinate system One horizontal centerline and the other vertical centerline

Be sure to draw the horizontal centerline first since it will be used as an axis of revolution

These centerlines are used to ensure symmetry of the section

Use , , and (Fillet Tool) to draw the section as shown below Then use

to dimension the section, and use to modify the dimensions so that the resulted section is shown below

Note that inner bore diameter 12 mm and outside diameter 32 mm of the bearing are diametrical dimensions

Tools -> Relations

The Relations editor appears

Enter the following relation in the editor:

Note that the above parameters in this tutorial might be different from what you have Be sure to use the correct parameters in establishing the relation formula of your part

Click OK

Draw TWO horizontal lines as shown, and dimension the distance between them to 5.25

mm

Draw a horizontal centerline through the center of the circle

This centerline will serve as line

of symmetry for both horizontal lines just created

Click to access the constraints dialog box

Click on for symmetry constraint

Pick the endpoints of both horizontal lines, then pick the centerlines

The two lines will then be symmetrical with respect to the horizontal centerline through the circle

Close the Constraints dialog box

Click , and delete the unwanted entities of the section

Be sure to have the final section as shown below

CREATE A BALL

Click to change to hidden line display

Click Then click -> Pick the FRONT datum plane as sketching plane, accept the default setting for Orientation, then click Sketch

button

Pick the one of the hidden arc as additional reference – see figure below

Close the References dialog box

Click to draw an arc using center and two endpoins

Pick this arc as

reference

Click , and draw a vertical line as shown below

Click , and draw a vertical centerline as

an axis of revolution

Click

Click to change to shaded view

Also change to Trimetric view

PATTERN THE BALL

Pre-select Revolve 2 (ball) in the Model Tree

Click

Select Axis from the dashboard

Pick the center axis of the bearing Enter 8 for number of occurrences, and 45° for the angle

Assignment:

Create a new ball bearing as assigned by your instructor The dimensions of 6200

Series ball bearing are given below

Bearing

BallCenter