CHAPTER 4: OPERATION
39
MOVE S2
There are different kinds of collets that are more or less effective:
a) Simple cone collet
The bar is held over about 350°, over a length
from 0.5 to 7 times the diameter.
Efficiency : good to very good
b) Bi-conical collet
Clamping over 1 or 2 x 350°, over an approximate
length of 1.2 times the diameter.
Efficiency : very good to excellent
c)
Double cone collet
The double cone clamp has the great advantage
of holding the bar at two points separated by
about 1.5 the diameter, with a clamping 2 times
350° over about 0.5 times the diameter.
Efficiency : excellent
With this type of clamping, one should be very careful given that in many cases the bar is held only at
three points, thereby greatly increasing the risk of vibration.
Frequent errors and possibilities for improving the effectiveness of the clamping grip.
a) Hard grips
Wrong :
The radius of the grip is greater than
the radius of the bar.
The jaws press against only 3 points at
120°.
Correct :
Modify the centers of the jaws to obtain
2 times 6 support clamping points at
60°.
Summary of Contents for QUICK SIX S2
Page 1: ......
Page 2: ...MOVE S2...
Page 3: ...MOVE S2...
Page 4: ...MOVE S2...
Page 5: ...CHAPTER 1 BASIC NOTIONS 3 MOVE S2...
Page 13: ...CHAPTER 2 TECHNICAL DATA 11 MOVE S2...
Page 15: ...CHAPTER 2 TECHNICAL DATA 13 MOVE S2...
Page 16: ...14 CHAPTER 2 TECHNICAL DATA MOVE S2...
Page 18: ...16 CHAPTER 2 TECHNICAL DATA MOVE S2...
Page 19: ...CHAPTER 3 SETTING INTO OPERATION 17 MOVE S2...
Page 33: ...CHAPTER 4 OPERATION 31 MOVE S2...
Page 57: ...CHAPTER 4 OPERATION 1 MOVE S2...
Page 60: ...4 CHAPTER 4 OPERATION MOVE S2...
Page 73: ...CHAPTER 4 OPERATION 17 MOVE S2...
Page 75: ...CHAPTER 4 OPERATION 1 MOVE S2...
