CHUCKING C-17
32)
Press the
(STOP) switch to stop the spindle.
<Example>
Assume that the outer diameter of the plug
measured in step 7) is 25 mm.
33)
Set the present position data (incremental) to
"25.000" mm for U.
34)
Cut the soft jaws while checking the diameter and
depth of cut by referring to the relative coordinate
values on the POSITION (RELATIVE) screen.
The depth of cut should be determined according
to the tool and tool projecting length. Be careful
that the machined I.D. does not exceed the
required diameter.
35)
Carry out rough cutting, leaving a 0.1 to 0.2 mm
finishing allowance.
After finishing rough cutting, chamfer the edges
and remove burrs using a file or similar tool.
36)
Carry out finishing.
a.
Use a new tip.
b.
Slightly increase the spindle speed.
c.
Machine relief at the I.D. edges.
d.
Surface roughness must be 6S or better.
e.
Chucking diameter dimensional accuracy is
approximately H7 (JIS).
f.
The run-out of the cut soft jaws must be less
than 0.02 mm on the periphery.
37)
With the manual door type machine, press the
DOOR UNLOCK switch
to unlock the front
door. Then open the front door.
With the automatic door type machine, open the
front door by pressing the AUTOMATIC DOOR
OPEN switch.
NOR
SPJ
STOP
REV
NOTE
NOTE
First machining
direction
Second machining
direction
DOOR
UNLOCK
NOTE
