Lathe Components & Accessories

Question 1

Name this part:

Answer 1

Bed of a lathe

Question 2

Name this part:

Answer 2

Head Stock

Question 3

Name this part:

Answer 3

Back Gears

Question 4

Name this part:

Answer 4

Quick-Change Gearbox

Question 5

Name this part:

Answer 5

Carriage

Question 6

Name this part:

Answer 6

Compound Rest

Question 7

Name this part:

Answer 7

Mandrel.

Question 8

Name this part:

Answer 8

Thread Chasing Dial

Question 9

The basic function of a lathe is to:

Answer 9

Machine round work.

Question 10

The size of a lathe is determined by the:

Answer 10

Maximum distance between centres and the amount of swing.

Question 11

The compound rest may be rotated:

Answer 11

360 degrees

Question 12

The apron handwheel moves the carriage by means of:

Answer 12

Rack and pinion.

Question 13

The feed reverse lever reverses the movement of the:

Answer 13

Carriage and cross-slide.

Question 14

The carriage is moved under power for turning operations by the:

Answer 14

Feed rod.

Question 15

The feed change lever:

Answer 15

Changes the direction of carriage feed from forward to reverse.

Question 16

A revolving centre is installed in the:

Answer 16

Tailstock.

Question 17

The thread chasing dial is used to:

Answer 17

Time when to engage the split nut when cutting a thread.

Question 18

The tailstock is locked in position on the ways of the lathe with the:

Answer 18

Tailstock clamp.

Question 19

The chuck best suited to holding odd-shaped pieces is the:

Answer 19

Four-jaw chuck.

Question 20

A lathe dog is used to:

Answer 20

Transmit drive power to a mandrel or workpiece held between centres.

Question 21

A follower rest has:

Answer 21

Two adjustable jaws.

Question 22

The weight of the machine refers to the __________ of the bed.

Answer 22

Rigidity.

Question 23

Name the 8 parts of a lathe:

Answer 23

1. The bed
2. The ways
3. The headstock
4. The back gears
5. The Quick-change Gearbox
6. The lead screw, feed rod, & rack
7. The Carriage
8. The Tailstock

Question 24

The four common types of lathe centres are:

Answer 24

1. Live Centres
2. Solid Dead Centres
3. Half Centres
4. Revolving Dead Centres

Question 25

Where is the “live” centre found and where is the “dead” centre found on a lathe?

Answer 25

• Live Centre is used in the Headstock
• Dead Centre is used in the Tailstock

Question 26

Purpose of a steady rest:

Answer 26

Supports long or thin workpieces either at the end or in the middle.

Question 27

Purpose of a Follower rest:

Answer 27

A follower rest keeps the workpiece from deflecting away from the cutting tool by supporting the immediate area of the cut.

Question 28

Threads per Inch:

1. Even number of threads per inch
2. Odd number of threads per inch
3. 1/2 threads (1 1/2 threads per inch)
4. Fractional numbers of thread per inch, other than 1/2
5. Threads that are a multiple of the number of threads per inch in the lead screw.
6. Metric pitches

Answer 28

When to Engage the Spilt Nut.

1. Any Graduation
2. Any Main Graduation
3. Graduations 1 & 3 or 2 & 4 (180 degrees)
4. Same Graduation every time
5. Engage whenever the split nut meshes. The dial is not necessary
6. Do not disengage the split nut.

Question 29

Forming tools are produced for special shapes such as:

Answer 29

1. Threading
2. Radii
3. Chamfering
4. Grooving

Question 30

Taper pins are made of hardened steel and have a _____ taper per foot.

Answer 30

1/4

Question 31

When changing the back-gears on a lathe, you must:

Answer 31

Lock out the power supply.

Question 32

When filing a workpiece in a lathe, hold the file handle:

Answer 32

In your left hand

Question 33

Lathes are condidered to be more dangerous than other machines becuase:

Answer 33

They have not evolved with safety features like most machines.

Question 34

The headstock of a lathe is located:

Answer 34

On the left side and cotains the spindle

Question 35

A follower rest has _____ adjustable jaws.

Answer 35

Two

Question 36

What type of taper is used in the tailstock?

Answer 36

Morse