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Pro/E WILDFIRE, week8

1.Set working directory.2.Save all parts you drew at week 6 and 7 into

the working directory or download the parts from the course website.

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We’ll start by assembling the lbrack, the bushing and the washer into a subassembly. File>New> select “Assembly” and “Design”. The assembly name is “support”. Turn off the “Use default template”. OK.

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In the New File Options, choose mmns_asm_design since the parts’ unit is mm. OK.

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Insert>Component>Assemble or click “Assemble”. Select lbrack.prt and open.

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The dashboard contains the options for constraining components brought into an assembly. The options are about how the parts are connected and constrained each other.

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To place the bracket in the same default position in the assembly, select “Default”. The status is now “Fully Constrained”. Check.

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Open the model tree. You see the assembly component. Select “Setting” tab, then “Tree Filters”.

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Select “Features” and “Placement Folder”. OK.

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In the model tree, you see the component placement. Select “Assemble” button again and open “bushing.prt”.

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There are steps in constraining. 1. Select the constraint type. 2. Select the appropriate constraint reference in the component and in the assembly. For the bushing, the Insert constraint makes the cylindrical outer surface of the bushing line up with the surface of the hole. The align constraint keepsthe face of the bushing even with the surface of the bracket.

Align

Insert

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Pick on the outer surface of the bushing and the inner surface of the large hole in the bracket.

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Pick on the flat surface of the bushing and the flat surface of the bracket. The offset type is “Coincident”. Check.

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Select “Assemble” button again and open “washer.prt”. The constraints of the parts are “Align”(washer and bushing axes) and “Mate”(washer’s back face and bushing’s front face).

Mate

Align

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Pick the flat back surface of the washer. For the assembly reference, pick the flat front surface of the bushing. Now they are at the same level.

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Pick the washer axis. For the assembly reference, pick the axis of the bushing. Check. Save the file. This is the subassembly.

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Create a new assembly called “main”. File>New>Assembly, Design. Name is “main”. Unselect this. OK. Pick the assembly template mmns_asm_design. OK.

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Click “Assemble” and open “bplate.prt”. To align the XYZ axes of the two coordinate systems (part and assembly), click ASM_RIGHT and RIGHT in my case.

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Click FRONT and ASM_FRONT. Check. Turn off datum planes and system display.

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Select “Assemble” button again and open “support.asm”. The constraints of the parts are “Align”(bracket holes and plate holes) and “Mate”(bracket bottom surface and plate top surface).

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Thus, click the surfaces for “Mate”, and click the axes of the holes for “Align”. Use “New Constraint” to add another “Align” constraint. Check. Bring another “support.asm”and assemble it to the other side on the plate. Save.

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Click “Assemble” and open “axle.prt”. In Move, by clicking and holding the axle, you can make the axle closer to the plate.

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Use the three constraints to assemble them. Orient the lower surface in the keyway and the upper surface of the plate. Generally, the order of creating the constraints doesn’t matter. But, do insert, align and mate in this case.

Mate

Insert

Align

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Do insert, align and mate in this case.

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Check.

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Add pulley.prt. Use the three constraints to assemble them. Orient the keyway in axle and pulley like this. Apply Mate and Insert first with offset of 100 in Mate.

Mate

Align

Insert

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Then, click “New Constraint” and select “Align”. Click the surfaces as shown above. Make the offset of the Mate 0. Check.

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Add the bolt. Use Insert and Mate constraints. Check.

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After selecting the bolt, click “Copy” and “Paste”. Now, you see the Add Component Dashboard for the second bolt. Change the references to the second hole to paste. Check.

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Repeat the copy at the third and fourth one. Check. Done!

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Info>Feature List>Top Level. Apply.

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You see the list of the features. Click “Subassembly” and click the lbrack and Apply. This lists the components in the subassembly containing the bracket.

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To find out the placement constraint, Info>Component. Pick on the axle. This gives you a list of the constraints used to position the axle.

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Suppress all components in the assembly except the axle and the pulley. In the model tree, select support.asm and select suppress in the RMB pop-up.

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Click the Options to keep the axle and the pulley.

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Change their status to “Freeze”. OK. Suppress the other parts as well.

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Now, you see only the two parts. To change part dimension, select the keyway and select “Edit”in the RMB menu. Change 50(length of keyway) to 18, 12.5 to 20, R10 to R5. Regenerate.

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We’ll create a key. Select “Create Component”. Select Type (Part) and Subtype (Solid). Enter a new part name “Key” and OK.

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In the Creation Option window, select “Create Features”. And OK. In the model tree, key.prt has been added to the assembly.

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Select the Extrude tool, then Placement>Define. ASM_RIGHT is the sketch plane. ASM_TOP and TOP for orientation. Sketch. Change the view as “wireframe”.

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Select the four lines on the keyway as references. OK. Close. Create a rectangular. Check.

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Extrude both sides and enter 18. Check.

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Make the top-level assembly active (select it and use the RMB menu). Change status of the all parts to “Regenerated” by clicking Edit>Resume>Resume all.

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Try View>Explode>Explode View. Save.

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We’ll create a drawing draft for the assembly. File>New>Drawing> Name is “mainasm”. Unselect this. OK. Select paper size A.

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In RMB pop-up, select “Insert General View” and select No Combined State. OK.

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Click a left bottom point on the screen to place its right view. Change scale to 0.5. Display type is “No hidden” and Tangent Edges is “None”. Close.

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Place a projection view on the right. Display type is “No hidden” and Tangent Edges is “None”. Close. Let’s make it a section view.

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Go to its (right one) properties. In sections, select 2D cross-section. Click ‘+’and done. Put ‘A’ as a section name. Select ASM_FRONT plane as a cutting plane.

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Click “Arrow Display” and select the main view. Apply. Close.

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Add another general view. Scale is 0.25.

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Add “Balloone Note” Click “With Leader” and click “Make Note”.

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Select the edge of the pulley. Done. Pick the location of the note.

Put “1”. Check. Check. Put numbers for all the parts. Done.

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Add more notes.

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Assignment week 8-1: Draw the drawing and print it as shown in the figure.

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Assignment week 8-2: Draw the part’s engineering drawing on the a.frm format with dimension.