90D3 / 90E3
Learning Control Operator’s Manual
A - 63639E – 108
01 ’05.04.20 N.Sonoda Newly designed Sheet 07
Edit Date Design Description / 064
3.2 Piston Lathe
* Cutting Sequence
(1) The piston outline is finished by rotating C-axis moving the tool back / forth along Y-axis. By feeding the
tool along the Z-axis, the cylindrical piston is gradually cut.
(2) Both Y-axis and C-axis are used either Suspension mode or Continuation mode of Learning control.
When the command of Y-axis gradually changes, Y-axis should be used Continuation mode of Preview
repetitive control. If the changing rate of the command is small, you might be able to get the sufficient
accuracy with Continuation mode only.
Oval cross Section
Double slide mechanism
. 3.2.1 Confi
ation example o
G05 endG05 start
Command data period PRIOD
Y axis Learning start
Ly should be longer than the the time the
learning complete to minimize the error.
Fig. 3.2.2 Movement of the tool along each axis when processing