Chapter Questions
What is a vise-held fixture?
What parts are best suited for a vise-held fixture?
What is the first step in designing any special workholding tool?
What is the main point to consider when selecting a locator for a vise-held fixture?
How can the designer ensure that each part detail maintains the correct relation to the other part details?
How are critical details identified?
If no machined detail is on a part, how should a designer select locational surfaces?
What is the difference between secondary and redundant locators?
Why should the secondary locator be relieved?
What are the important factors to consider when selecting a clamp?
What is straddle milling?
What is a set block used for?
What is used with a set block?
Why is it necessary to specify the spacing collar size?
Why should cutters be ground together?
How can the size of the cut be adjusted if necessary?
What is the main difference between the viseheld and plate fixtures?
What is a secondary function of locators?
How can rough cast surfaces be located?
Should adjustable locators be set for each part?
Why can't set blocks be used for every part?
What variables must be considered before choosing to use set blocks?
How can the cutters be set if no set block is used?
What are the two general types of cam clamp used for jigs and fixtures?
Which cam clamp type is better, and why?
What is the specific amount of movement in a cam called?
What is the arc of movement called?
Which style of cam is easiest to make?
What determines the rise of a spiral cam?
How can locational inaccuracies be allowed for when designing a spiral cam?
What is the general rule for rise on a spiral cam?
What is the normal range of cam throw?