B–63522EN/02
21. AXES CONTROL
NC FUNCTION
301
When synchronization start or cancellation is specified, the EGB
(Electronic Gear Box) function does not immediately start or cancel
synchronization. Instead, it performs acceleration or deceleration.
Synchronization can be started or canceled without stopping the rotation
of the spindle.
When synchronization starts, automatic phase matching is performed so
that the position relative to the C–axis matches the position of the
one–rotation signal on the spindle. This operation is similar to the
operation at the beginning of synchronization by a one–rotation signal in
hob synchronization with conventional functions for hobbing machine.
Here, the spindle corresponds to the master axis of the EGB, and the
workpiece axis corresponds to the slave axis of the EGB (the servo axis
or Cs contour axis).
Synchronization cancel command
Synchronization start command
Workpiece axis speed
Spindle speed
Synchronous state
Acceleration
Deceleration
G81 T_ L_ R1 ; Starting synchronization
G80 R1 ; Canceling synchronization
T:Number of gear teeth
L:Number of hob threads
21.22
ELECTRONIC GEAR
BOX AUTOMATIC
PHASE
SYNCHRONIZATION
(M series)
M series
21.22.1
Acceleration/Decelerati
on Type
Format