assembly drawing
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Assembly Drawing
Mohamad Ikhwan Zaini Ridzwan
mikhwanr@eng.usm.my
EMD101-Engineering Drawing
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Assembly Drawing
You will learn to:
create a 2D assembly drawing
incorporate an exploded view into an assembly drawing, and
generate a Bill of Materials (BOM).
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Assembly Drawing
Assembly drawings show all the parts and how they go together
Dimensioning is not usually requiredHidden lines usually omitted3D CAD packages can generate assembly
drawings directly from assembly models
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Elements of an Assembly Drawing
All parts are shown in one drawing•assembled view•sectioned assembly•exploded assembly
Parts list or bill of materials (BOM)•part ID, quantity, description, catalogue number, etc.
Balloons•each part is identified by a numbered balloon, and referenced to the parts list
Machining and assembly instructions
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Balloons
Parts list(BOM)
Isometric
Assembly Drawing
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Exploded Assembly Drawing
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Creating an Assembly Drawing
• Open the assembly file “Sliding brace assembly.sldasm”. Make sure that the assembly is in the ‘collapsed’ configuration
• OK to accept the Drawing Template
Uncheck the box
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2D Assembly Drawing
In the new drawing window, select the Standard 3 View, and make sure it is in Third angle projection
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Adding an Exploded View
Select the Model View Tool from Drawings group
Select Trimetric from the list
Trimetric view
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Adding an Exploded View
Check the box
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Right click the Trimetric View and Select Properties
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Exploded View
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Creating a Bill of Materials
• Select any of the drawing views
• From the main menu, select Insert: Tables: Bill of Materials
• Accept the default selections
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Edit the title box
Click on the Part Number cell, and select Column Properties
Edit the title box to read PART NAME
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Bill of Materials
• The drawing is almost complete, but the item numbers in the Bill of Materials are not linked with the components in the drawing.
• We will add “balloons” with part numbers to the drawing.
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AutoBalloons
• Select the exploded Trimetric Views.
• Select the AutoBalloons Tool from the Annotations group of the CommandManager.
• Balloons will be added to the view.
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AutoBalloons
• Click and drag the part numbers to relocate the balloons.
Circular –
Triangular –
Hexagon –Circular split line
Balloon styles
Item numberQuantity
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The Shock assembly
Other Example
The exploded state of the Shock assembly
The Bill Of Material for the Shock assembly
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Tutorial – Advanced drawing – Assembly drawing views
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