47
Fig. 13-11
Along the X-axis and Y-axis after positioning, Spindle accurate stop, tool tip in the opposite direction to
move the knife, quickly moved to the bottom of the hole R point. The tool then move the knife tip and the spindle
clockwise direction along the Z axis positive boring until the Z point. After reaching point Z, the spindle is
stopped and execute exact stop, the tool tip in the opposite direction to the knife, and then the tool returns to the
initial position. In the initial position of the tool tip direction to move the knife, spindle forward, continue
processing the next block.
When the G87 and M code are specified in the same block, the positioning operation is performed while the
M code, and then the next boring action. When specifying the number of repetitions K, M code is executed only at
the first hole, after hole for no M code is executed.
When the tool length compensation in a fixed cycle block (G43, G44, G49) , positioning to point R bias.
Before using the G87 boring cycle, you must specify the spindle by M code.
P for the hole bottom dwell time, in milliseconds, can only be a multiple of 100.
WARNING:
Q (the hole bottom offset) is a modal value, must be careful to specify that it also acts on the G73 and G83.
NOTE
:
1.
The tool radius compensation: When using a fixed cycle command, the tool radius compensation is
ignored.
2.
Cancel canned cycle: You cannot use the G76 and 01 group G code in the same block, or G87 is
canceled.
3.
cycle parameters: After the execution of a complete drilling cycles, the next block specified individually
when a new cycle parameters (Z, R, P), a new cycle parameters could not be effective; specify hole data and when
the follow-up procedure when a new cycle parameters (Z, R, P), a new cycle parameters take effect immediately,
and the modal in the following blocks.
Program Example:
G0
G90
G54
X50.
Y160.
Z30.
Fast positioning to the first hole, the spindle is
