
B-63782EN/01 NC FUNCTIONS 20.AXIS CONTROL FUNCTIONS
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20.13 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
- Acceleration/deceleration plus automatic phase matching type
Synchronization cancel command
Synchronization start command
Workpiece
axis speed
Synchronous
state
Acceleration
Deceleration
Automatic
hase matchin
Spindle
speed
Synchronization
cancellation command
Synchronization start command
Workpiece-
axis speed
Synchronization
state
Acceleration
Dec eler ation
Spindle
speed