
12. DIRECT OPERATION FOR
MACHINING PROGRAMS
CREATED CONVERSATIONALLY
B–63284EN/03
OPERATION
168
NOTE
A tool needs a distance of 2 mm from the tip of the tool to
the end of the chuck when the tool stops after hitting the
stroke limit while it moves in rapid traverse. For safety,
however, a larger distance may be required.
(2) Details of the chuck barrier
The Chuck barrier uses the second limit of the extended stored stroke
check function. When this function is used for other purposes, the
chuck barrier is not available.
The chuck barrier checks only the tip of a tool (or the center of a
rotating tool). It does check the entire tool.
When the second limit is used, set bit 0 (OUT) of parameter No. 1300
to 0 to suppress machining in the area inside the second limit.
The chuck barrier function uses a program command (G22 X _Z _I
_K _) for the second limit to move an inhibited area by the distance
equivalent to the difference between the offset of the reference tool
and that of each tool.
This function also modifies the figure of an inhibited area according
to the figure of the chuck used and the area to be machined in each
process.
(a) For external claw chucks (turning tool)
f’
g
e’
e
W
f
L
L1
W1
c
b
b’
d
L’
D