there are different work holding devices of lathe in brief..

1. Work holding devices of lathe
Name : Vedant D. Rajput
Enrolment no.:150010119120
Subject : Manufacturing processes-1

2. What will I discuss??
 Three jaw chuck and four jaw chuck
 Collet chuck and magnetic chuck
 Lathe centres
 Lathe dogs
 Mandrels
 Rests
 Face plate
 References

3. TYPES OF CHUCK
 Three jaw chuck
1.For holding cylindrical
stock centered.
2.For facing/center drilling
the end of your aluminum
stock
 Four jaw chuck
1.This is independent chuck
generally has four jaws ,
which are adjusted
individually on the chuck
face by means of adjusting
screws

4.  Collet chuck
1.Collet chuck is used to
hold small workpieces
 Magnetic chuck
1.Thin jobs can be held by
means of magnetic chucks

5. LATHE CENTRES
 Work to be turned between centers must have
center hole drilled in each end.
 Provides bearing surface
 Support during cutting.
 Most common have solid Morse taper shank
60º centers, steel with carbide tips.
 Care to adjust and lubricate occasionally.

6. LATHE DOGS
 LATHE DOGS ARE CAST METAL DEVICES USED TO
PROVIE A FIRM CONNECTION BETWEEN THE
HEADSTOCK SPINDLE AND THE W/P MOUNTED
BETWEEN CENTRES.
Tail
Tail

7. MANDRELS
 MANDRELS IS USED TO HELD THE HOLLOW/DRILLED W/P.
Workpiece Mandrel

8. RESTS
 LONG W/P NEED EXTRA SUPPORT THAT TEND TO SPRING
AWAY FROM THE TOOL BIT. WE USE THE REST FOR PROVIDE
SUPPORT.
Jaws
Hinge
Work Work Jaws
Lathe bed guideways
Carriage

9. FACE PLATES
 A LATHE FACE PLATE IS A FLAT ROUND PLATE THAT
THREADS TO THE HEADSTOCK SPINDLE TO THE LATHE.
 THE FACEPLATE IS USED FOR IRREGULARLY SHAPED W/P
THAT CANNOT SUCCESFULLY HELD BY CHUCKS.
Workpiece

10. REFERENCES
 Manufacturing processes-1
-by Dr. R.P. Arora
 Google images