
Title
9083 / 9087 / 90A3 / 90A7
Learning Control Operator’s Manual
03 '00.06.07 N.Sonoda Qualified 2'nd issue Draw No.
02 ’99.01.14 K.Maeda Qualified 1’st issue
A - 63639E - 034
01 ’97.12.08 K.Maeda Newly designed Sheet 08
Edit Date Design Description / 070
3.3 Cam Grinding Machine
* Grinding Sequence
(1) The cam form is ground synchronized to C axis rotation with the grinder back and forth moved along X axis.
(2) Each profile is processed by the High-speed cycle cutting (G05), but changing the profile fall out of G05 with
Z axis moved.
The way in case of many repetition cycle in a profile.
(3) Setting the period of one C rotation to Learning period.
(4) Though the finishing can get down the rotation speed of C axis, from the precision point of view, it is
recommended for the rotation speed of C axis not to change with L1=L2.
(5) The rotation speed of C axis can vary during one rotation of C axis. There might be the special machine such
as the crank-shaft pin grinding that requires very high accuracy. As far as grinding technology allows, The
constant C speed during one rotation is more preferable for the application of high accuracy.
(6) Both X axis and C axis use the Compensation data continuation mode of the Preview repetitive control.
The way in case of a few repetition cycle in a profile.
(3) Setting the total C rotation involving the Approach to Learning period.
(4) Compensation data continuation mode of the Preview repetitive control is used with Repetition count set to
one.
(5) You need to repeat about ten times trial of G05 till the sufficient convergence of the error achieved.
(6) In case you don’t want to renew the compensation data at the grinding of Learning function, you have to set
compensation data suspension mode active, and Repetition count to zero.
(7) Make sure to set Shock reducing counter (SHKRDC) effective.
Grinder
CAM work
Spiral grinding
A
A'
A - A' cross section
Grinding tool
C axis
Z axis
Profile 1
Profile 2
Profile 3
Profile 4
CAM work
Single slide mechanism
Fi
. 3.3.1 Example of Confi
uration of Cam Grindin
Machine.
X axis
G05 G05 G05 G05
Profile 1 Profile 2 Profile 3 Profile 4
C axis
X axis
Z axis
Fig. 3.3.2 Movement of the Tool along each Axis.