Term
| What is the main objective of tool design? |
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Definition
| To lower maufacturing costs, while maintaining quality and increased production |
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Term
| What is tool design priority? |
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Definition
1. Accurate location
2 Adequate Clamping |
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Term
| What should a jig/fixture tolerance be? |
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Definition
| 20%-50% of part tolerance |
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Term
| What is the main difference between a jig and a fixture? |
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Definition
| A jig locates the part and guides the tool. A fixture locates and holds the part |
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Term
| How many degrees of freedom are there? What are they? |
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Definition
| 6 Degrees. X, Y, and Z and the rotation around the axis |
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Term
| Movement in a straight line is considered (In relation to the 6 degrees of freedom)? |
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Definition
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Term
| How many locators are needed on a fixture to constrain movement? |
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Definition
| One locater per degree of movement. More than one per freedom is redundant |
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Term
| What are guide bushings and locators made of? |
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Definition
| Hardened (Heat Treated) Steel |
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Term
| What does a fouling pin used for? |
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Definition
| To eliminate improper part loading |
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Term
| Clamping pressure is greatly reduced when cutting force is directed at the? |
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Definition
| Locaters rather than clamp |
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Term
| Three parts that make up a jig or fixture? |
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Definition
| Base plate, locators, clamps |
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Term
| What is the purpose of a locator? |
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Definition
| They position the workpiece in relation to cutter |
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Term
| Clamps must be strong enough to? |
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Definition
| Hold part and resist movement |
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Term
| What is the most efficient locator and how many degrees of freedom does it constrain? |
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Definition
| Cylinder type in a round hole. Constrains 5/6 degrees of freedom |
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Term
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Definition
-Dedicated (For one specific WP)
-Modular
-General Purpose (Vise) |
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Term
| What are assembly jigs for? |
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Definition
| Used to locate components for Welding, Glueing, Bolting |
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