GSK GSK983Ma, User Manual

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GSK983Ma Milling Machine Center CNC System User Manual
138
Part 1 Programming
3.7.4.3 Explanation
When the Q value is positive, its operation path is: the point R is performed at the rapid traverse
rate after positioning along with the X and Y axes, and the tapping is performed from the point R to
the Z. The spindle stops to perform the dwell when the tapping is executed, and then the spindle
rotates in the reverse direction; the tool retracts to the point R, the spindle then stops, and then, it
perform to the initial position at the rapid traverse rate. The feedrate override and spindle override are
regarded as 100% while the tapping is performing.
When the Q value is negative, its operation path is: the point R is performed at the rapid traverse
rate after positioning along with the X and Y axes, the tapping is performed using the each
incremental feed depth Q (the cutting depth of each cutting feed) from the point R; the spindle stops
to perform the dwell when the tapping is executed the depth Q, the spindle then rotates in the reverse
direction; when the tool retracts to the point R and continuously cycles to the point Z, the spindle
stops and then retracts in the reverse direction. The feedrate override and spindle override are
regarded as 100% while the tapping is performing.
The G184 is specified as the rigid tapping cycle command.
The G180 is specified as the cancellation of the rigid tapping cycle command.
Thread leading F: the thread leading equals to the feedrate per revolution regardless of the feed
per minute mode or the feed per revolution.
3.7.4.4 Limitation
a). The tapping axis can not be changed by the rigid tapping.
b). The unit of the F code: 0.001mm/rev or 0.0001inch/rev, decimal point programming.
c). Each kind of tapping command parameter can not be memorized as the modal data after the
tapping cycle is cancelled.
d). The system No. 1 alarm may occur if there is no tapping command parameter (other than the
hole position coordinates X, Y and Q).
e). The system No.2 alarm may occur if the coordinate of point Z is more than the one of the
point R.
f). The hole machining data, such as Z, R, Q, S, F and M3/M4 can not be changed in the rigid
tapping cycle.
g). It is recommended that the top tapping speed is within 1000r/min when matching the GSK
DAP03 servo spindle.
h). It is regarded as impossible for the format without any explanations.
3.7.4.5 Examples
(1) Right-hand rigid tapping cycle (G184 M3)
Spindle speed 1000r/min