Class 2
Design Process & Graphic Communication 1) Assembly and Solid Models Installation Instructions (CAE) 2) “As-Built” Design Package Drawings Sketches (2-D Drawings & 3) Schematics Creating Design Packages Schematics)
Jim Glancey MEEG 304 – Machine Design Elements
Visualization Communication Documentation
Drawing Packages Drawing Package Elements
• Contains all the descriptive documentation needed to •Package Content ensure a part or system can bfddbe manufactured and • DiDrawings f or eac h component tlikdt linked to parent assembled. assembly • One or more assembly drawings • Drawing Package = a group of drawings that •2D or 3D communicate the details of a system or sub-system. • Assembled or Exploded • Label all components • NdtbfiihdbfNeeds to be finished before any part s can b e mad e. • Incldlude a B i lill f of Materials • Link to component drawings • The final drawing package will be given to your • May also include wiring, pneumatic and other customer. diagrams to communicate and illustrate connectivity and installation.
1 Class 2
Drawing Package Organization Exploded Assembly
• Full Assembly & Bill of Materials • Sub Assembly #1 • Sub Assembly #2 • Sub Assembly #3 • Parts in Sub Assembly #1 • PtiSbAParts in Sub Assembl bl#2y #2 • Parts in Sub Assembly #3 •Etc…
Part 1 Part 2
2 Class 2
Example Engineering Drawings 2D Sectioned Assembly Typical Content
• GfbjGeometry of an object • Material type and characteristics • Manufacturing requirements • Surface finishes and features • Tolerances (primarily geometric) • Other (eg. assembly information)
Drawing Title Block
• Typical Title Block Contents: Typical • Material •Scale •Tolerance •Description • Team name • Part number • Sheet “number” of “total number of UDME sheets” • PtdPart drawn by an ddtdd date drawn • Checked by and date checked • File Name • Quantity
3 Class 2
Engineering Drawings Dimensioning The Legal Context
• Dimension with intent to manufacture • Engineering Drawing: • All dimensions from one setup coming • Binding document or set of documents that from the same datum disclosed graphically and in text the form • Parts with many dimensions may need and function of an object. two or more different drawings or • Legally binding if created by or approved enldilarged views. (i. e. stamped) by a professional engineer.
Bill of Materials
• Bill of Materials Contents: •Part No. • Quantity • Material/Stock Size • Sheet # •Source • Bill of Materials are needed for each full and sub Bill of Materials assembly • If the same part appears in multiple subassemblies it only needs to appear once in the drawing package. • Common format: Table with Columns • Typically included on the assembly drawing.
4 Class 2
Purchased Parts
• Most manufactures provide eltlectroni idc drawi ngs.
• Do not need to be fully dimensioned in drawing unless modified after they are Stepper Motor purchased
• Add a note for the material giving the part number and contact info of the company the part was purchased from
Drawing Provided by Manufacturer
Diagrams Don’t Forget about Sketching • Technical sketches (i.e. to scale) are a great • Same principles apply to wayconveyideasway convey ideas. assembly diagrams • Circuits • Attempting to sketch in SolidWorks often • Pneumatic presents more obstacles than just using pencil • Hydraulic and paper. •Logic • Jumping into • Used to show SolidWorks before your connectivity and design intensions are clear causes problems. operation. i.e. origins, planes, etc…
5 Class 2
Installation Drawing Requirements
• Necessary to insure proper installation of a Installation Drawings new design. • Adapting into or onto an existing system. • Demolition • Modifications (holes, cutouts, etc.) • Can integrate/illustrate several sub-systems (mechanical, electrical, controls, etc.).
Valve Installation
6 Class 2
Cuttoff System Installation
7 Class 2
Thank you!
Questions?
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