Tài liệu Base Support docx

Pick TOP datum plane as Sketch Plane, accept default Sketch Orientation Reference and click the Sketch button... Pick the TOP datum plane as sketching plane, then click Sketch button...

ME-430 Introduction to Computer Aided Design

Base Support

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-

Type in base_support for the name of the new part

Un-check Use default template

The default units of Pro/E is

inlbs_part_solid Click OK since the part will have inches units

Click OK in the New dialog box The default datum planes

appear in the graphics area

CREATE A BASE FEATURE 3.10 in x 5.10 in x 4 in

Create the base feature – Pick the

Extrude Tool icon

In the dashboard, click

Click Define

Pick TOP 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 These centerlines are used to ensure symmetry

Click to modify the dimensions

Change this dimension to be

3.1

Also change this dimension to be

5.1

Click the small forward > icon to expand, and pick

Draw and dimension an arc as shown below – be sure the center of the arc located in the horizontal centerline

Pick the arc using left button, then select Pick the vertical centerline as mirror line

Pick , and trim the unwanted edges – see figure below

CREATE 43 ROUNDS AT THE PLATE

Click the Chamfer Tool icon

Left-click one edge of the corners, press Ctrl key while picking the rest of the edges Enter value for D: 1.9

Click

CREATE A SLOT PROTRUSION

Click Then click -> Pick the TOP datum plane as sketching plane, then click Sketch button

Close the References dialog box

Click and draw two 75 inches circle as shown in the figure (at lower right corner of the plate

Click on Draw TWO vertical lines tangent to both circles

Click on , and trim the sketch as shown

in the figure

Click and enter the depth 0.6 Select both sides protrusion

Click

Click Then click -> Pick the top surface of newly created protrusion as sketching plane, then click Sketch button

Close the References dialog box

Click on to change to hidden line display

Select to draw the slot edges by offsetting from the existing edges

Select Loop Pick the outer edges of the support protrusion – see figure

Enter the offset distance of -0.175 in Hit Enter

Click and select the cut option

Choose thru all extrusion depth

Change the direction

of cut extrusion by selecting

Click

Copy Mirror the Slot

Pre-select the last two extrusions (support and slot) in the Model Tree Both features should be highlighted

Click on the Mirror Tool Pick RIGHT datum plane as mirror plane

Click on

Pre-select the last two extrusions (support and slot) and mirrored geometry in the Model Tree

Click on Select FRONT datum plane as mirror plane

Click to finish the mirroring process

CREATE A REVOLVED PROTUSION AT TOP SURFACE

Draw a vertical centerline as shown, and dimension it

1.175 in from the

left edge of the part

Draw and dimension the section shown in the left

Be sure that the bottom horizontal line must be attached

to the top surface (shown as an edge)

of the part Also, use diametrical

dimensions instead of radial dimensions

Click

Click

CREATE A THRU ALL HOLE

Linear

Places a hole on a surface using

linear dimensions (Default)

Radial

Uses a linear and angular

dimension

Diameter

Rotates the hole about a diameter

reference using a linear and angular

dimension (uses axis)

Coaxial

Places a hole at the intersection of

a surface and axis using a linear

and axial reference

Click the Hole Tool Click the Placement tab to expand it

Pick the TOP surface of the revolved feature as shown

Choose Coaxial option

Double click the white box under

Secondary references Select the axis of the conical feature (revolved protrusion)

Enter the diameter of 0.625 in Select the Through All hole

Click

MIRROR THE CONICAL CYLINDER AND ITS HOLE

Pre-select Revolve 1 and Hole 1 features

Click on Select FRONT datum plane as mirror plane

Click

CREATE A RIB

Click - Rib Tool

Pick on to expand it

Select ,

Pick RIGHT datum plane as sketching plane, and TOP datum plane as Top

Orientation – see figure below

Click on Sketch button

Pick TWO vertices labeled as cross as shown below for more references, then close the reference dialog box

Draw a straight line as shown in the figure

Click

Enter the thickness of the rib 0.30 in

Click

Repeat the same technique to create a rib between the two conical cylinders

Click Then click -> Pick the RIGHT datum plane as sketching plane, TOP datum plane as Top Orientation, then click Sketch button Pick additional references as shown below

Draw a horizontal line between TWO vertices Click

Enter 0.30 in thickness for the rib

Click Lastly, repeat again the same technique to create a rib located in the back

Click Then click -> Pick the RIGHT datum plane as sketching plane, TOP datum plane as Top Orientation, then click Sketch button

Pick additional references as shown below

Draw a straight line as shown

Click Enter 0.3 in thickness for the rib, then click

CREATE AN ARC CUT OF THE MIDDLE RIB

Click on to create an axis at intersection between

FRONT and RIGHT datum planes

Pick FRONT and press-hold Ctrl key while picking RIGHT datum plane

Click OK

Click Then click -> Pick the RIGHT datum plane as sketching plane, TOP datum plane as Top Orientation, then click Sketch button Pick TWO vertices as additional references

Close the references dialog box

Click and draw the following arc with 1.62 in radius

CREATE THE LAST TWO RIBS

Create FOUR datum points for the ribs

Pick

Pick the left arc edge of middle rib, press-hold Ctrl key and pick the FRONT datum plane

Pick

Pick the top left arc edge of top surface of the base, press-hold Ctrl key and pick the

FRONT datum plane

Click OK to complete FOUR datum points creation

Click - Rib Tool Pick on to expand it Select ,

Pick FRONT datum plane as sketching plane, and RIGHT datum plane as Right Orientation – see figure below

Click on Sketch button Change the display to hidden line display

Pick PNT0 and PNT1 datum points as additional references as shown below, then close the reference dialog box

Draw a straight line between PNT0 and PNT1 datum points as shown in the figure

Click

Enter the thickness of the rib 0.30 in Change the direction of the rib creation by clicking the yellow arrow Click

Repeat the same technique to create the left rib

Click - Rib Tool Pick on to expand it Select ,

Pick FRONT datum plane as sketching plane, and RIGHT datum plane as Right Orientation – see figure below

Click on Sketch button Change the display to hidden line display

Pick PNT2 and PNT3 datum points as additional references as shown below, then close the reference dialog box

Draw a straight line between PNT2 and PNT3 datum points as shown in the figure

Click

Enter the thickness of the rib 0.30

in

Change the direction of the rib creation by clicking the yellow arrow Click

CREATE THRU ALL LATERAL HOLES

Click Then click on

Pick RIGHT datum plane as Primary and be sure Linear is the placement option

Click the white box area under

Secondary references

Pick the top surface of the conical cylinder, and enter the offset value of 0.4 in

Press and hold Ctrl key, and select the FRONT surface of the base plate Enter the offset value of 1.175 in

Enter the diameter of the hole 0.20 in and select both sides protrusion Use the arbitrary depth of

1.54 in

Click

Pre-select the hole just created

Click to mirror the hole

Select FRONT as mirror plane, then click

CHANGE THE COLOR OF BASE SUPPORT

From View pull down menu, select Color and Appearance

Click to add a new color

To open Color Editor, pick

Pick the desired color in the Color Editor

Click Close button

Under Basic tab, set the following properties:

Color Intensity: 80 Color Ambient: 20 Highlight Shine: 10 Highlight Intensity: 100 Click Apply button to change the color of part

Click Close button