Week 6_Assembly and Working Drawing.pdf - MIET 2461 Biomedical CAD — Lecture 6 Assembly modelling Working Drawings by Dr Toh Yen Pang

Week 6_Assembly and Working Drawing.pdf - MIET 2461...

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1 Lecture 6 Assembly modelling & Working Drawings by: Dr. Toh Yen Pang [email protected] 9925 6128 B251.3.22 MIET 2461 Biomedical CAD
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2 Objectives Define working drawing Major components of a complete set of working drawings Detail and Assembly drawings
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3 1 2 3 5 6 4 7 A3 1 2 3 4 5 6 7 8 A B C D E F A B C D E F DESIGNED BY: Thierry Perret Ellena DATE: QUANTITY: 1 Off CHECKED BY: TPE DATE: THIRD ANGLE PROJECTION SCALE: 3:4 1/1 SHEET: DOCUMENT TITLE: GENERAL TOLERANCE ISO 2768 - mK LINEAR DIMENSIONS 0.5<t 3 0.1 3<t 6 0.1 6<t 30 0.2 30<t 120 0.3 120<t 400 0.5 ANGULAR DIMENSIONS t 10 10<t 50 ±30' 50<t 120 ±20' 120<t 400 ±10' 400<t ±5' This drawing is our property; it can't be reproduced or communicated without our written agreement. NEXT ASSY: DRAWING REVISION DESCRIPTION DATE APPROVAL 01 1 Round Bar SAE steel 1045 ITEM REF QTY DESCRIPTION MATERIAL/DRAWING NO. REMARKS/SUPPLIER/CATALOG NO. SIGNATURE: FINISH: DOCUMENT TYPE: Part Drawing 400<t 1000 0.8 1000<t 2000 1.2 DRAWING NUMBER: REVISION: 001 PROJECT: Planetary Gearbox (SHARP EDGES BROKEN (GENERAL TOLERANCE ISO 2768 - mK (NOT FOR MANUFACTURE (EDUCATIONAL ONLY) Shaft Output SO-P001 GS-A001 2013-05-02 45 8x 18 8x 11 8x 106 PCD Front view Scale: 3:4 A A Section View A-A Scale: 3:4 130 ±0.1 90 62 ±0.5 72 ±0.1 50 ±0.2 15 12 20 42.6 ±0.1 25.15 47.3 23.65 70 151.65 +0.1 -0.3 B 60 12.7 24.15 4.5 45 Bottom view Scale: 3:4 69.25 +0.1 -0.3 16 15 R 14 Detail B Scale: 3:2 Working Drawing
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Assembly Modeling
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5 Introduction Assembly modeling enable the operator to combine components to create a 3D parametric assembly model. Assemblies, when brought in as components, are now considered subassemblies in the new larger assembly.
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6 Create an assembly Any assembly can be thought of as a hierarchy of subassemblies and/or parts and can be represented in a tree structure . Construction an assembly begin with selecting a base component because of its central role in defining the overall assembly.
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7 EXAMPLE 1 : Assembly steps 3 PIN, Steel, 1 REQD.
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