Study Guide L: Chucks (Thread Milling)

Question 1

What are the 2 types of Lathe Spindle Noses?

Answer 1

L-Type Long Taper Key Drive Splinde Nose & Threaded Spindle Nose

Question 2

What can you put on top of a spindle nose in order to accommodate a number of different work holding devices?

Answer 2

A Camlock Backplate

Question 3

What is in an Adapter Backplate consist of?

Answer 3

Consists of a ring CAMLOCK studs that is then fitted to the rear of each work holding device, such as a CHUCK.

Question 4

What is the thing that rotates the cams?

Answer 4

The BACKPLATE KEY

Question 5

MOST COMMON work holding device used on lathes?

Answer 5

A 3-JAW SLEF CENTERING CHUCK

Question 6

How does a 3 Jaw move?

Answer 6

With the CHUCK KEY wich move a SCROLL GEAR driven by a PINON/CROWN GEAR SET

Question 7

What type of shape stocks can a 3 JAW SELF-CENTERING CHUCK hold?

Answer 7

Circular, hexagonal pieces, or any multiple of three sides

Question 8

Since the jaws of 3 JAW SELF CENTERING CHUCK is reversible, what are the ways it can grip

Answer 8

It can externally grips an oversized stock or internally grip pip stock.

Question 9

What is the purpose of a 4 JAW CELF CENTERING, and why is it not a common one?

Answer 9

It is used for when you want to hold square stock.

Question 10

What is the better version of the 4 JAW CELF CENTERING CHUCK?

Answer 10

The 4 INDEPENDENT CHUCK