
1.AXIS CONTROL B-63323EN-1/03
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1.12.5 Automatic phase matching function with electronic gear box
In the EGB (electronic gear box), when synchronization start or
cancellation is specified, synchronization is not started or canceled
immediately. Instead, acceleration/deceleration is executed first.
Therefore, synchronization can be started or canceled while the spindle
is rotating.
At synchronization start, automatic phase matching is performed such
that the workpiece-axis position matches the position corresponding to
the spindle one-rotation signal. With this matching, the same operation
is performed as synchronization start caused by a one-rotation signal in
hobbing synchronization when using the conventional functions of a
hobbing machine.
The spindle corresponds to the EGB master axis and the workpiece axis
corresponds to an EGB slave axis.
Format
- Acceleration/deceleration type
G81 T_ L_ R1; Synchronization start
G80 R1; Synchronization end
T : Number of teeth (range of valid settings: 1-1000)
L : Number of hub threads (range of valid settings: -21 to
+21, excluding 0)
When L is positive, the direction of rotation about the
workpiece axis is positive (+ direction).
When L is negative, the direction of rotation about the
workpiece axis is negative (- direction).
- Acceleration/deceleration plus automatic phase matching type
G81 T_ L_ R1; Synchronization start
G80 R2; Synchronization end
T : Number of teeth (range of valid settings: 1-1000)
L : Number of hub threads (range of valid settings: -21 to
+21, excluding 0)
When L is positive, the direction of rotation about the
workpiece axis is positive (+ direction).
When L is negative, the direction of rotation about the
workpiece axis is negative (- direction).