
B-63783EN-1/01 1.AXIS CONTROL
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Explanation
- Synchronization start
Specify P and Q to use helical gear compensation.
In this case, if only one of P and Q is specified, an alarm (PS0594) is
generated.
When a G81 command is issued to change to synchronization mode,
the EGB mode confirmation signal for the workpiece axis becomes "1"
and synchronization starts between the spindle and the workpiece axis.
During synchronization, control is performed such that the ratio of the
spindle speed to the workpiece-axis speed is the same as that of T
(number of teeth) to L (number of hob threads).
When a G81 command is again specified during synchronization
without canceling synchronization, if T and L are specified, the
synchronization coefficient is changed to that newly specified by T and
L. If T or L is not specified and only P and Q are specified, the
synchronization coefficient remains as is and helical gear
compensation is performed. With this operation, a helical gear and a
spur gear can be continuously machined.
NOTE
In a command compatible with that for a hobbing
machine, feed per revolution is performed according
to the speed of the synchronous slave axis.
- Synchronization end
Synchronization of all synchronized axes is canceled.
When a synchronization cancellation command is issued, the absolute
coordinates for the slave axis are updated according to the amount of
travel during synchronization.
For a rotation axis, the value obtained by rounding off the amount of
travel during synchronization to the nearest 360 degrees is added to the
absolute coordinates.
In a G80 block, do not specify addresses other than O or N.