Mitsubishi Electric MELSEC-LD77MS2 User Manual page 37

Lifter
B conveyor
Lifter
Counter-
A conveyor
weight
Reduction
gear
Loader
G1
Servomotor
(with a brake
)
Index table (High-accuracy indexing of angle)
Digital switch
Index table
Worm gears
Inner surface grinder
Servomotor
Motor
IM
G
Inverter
Servo
amplifier
Fix the grinding
220VAC
stone, feed the
60Hz
workpiece, and grind.
Operation panel
LD77MS
Unloader
Loader/unloader
Aging rack
C conveyor
G2
Servomotor
Servo
amplifier
LD77MS
Detector
Servomotor
Workpiece
Grinding stone
G
Motor
G
IM
Inverter
a. Total feed
a d
amount (m)
b. Finishing
b e
feed amount (m)
c. Compensation
c
amount (m)

During the aging process, storage onto the
rack is carried out by positioning with the AC
servo.

The up/down positioning of the lifter is carried
out with the 1-axis servo, and the horizontal
position of the aging rack is positioned with the
2-axis servo.
Servo
amplifier
LD77MS

The index table is positioned at a high accuracy
using the 1-axis servo.
Servo
amplifier

The grinding of the workpiece's inner surface
is controlled with the servo and inverter.

The rotation of the workpiece is controlled with
the 1-axis inverter, and the rotation of the
grinding stone is controlled with the 2-axis
inverter. The workpiece is fed and ground with
the 3-axis servo.
d. Rough grind-
ing speed (m/s)
e. Fine grinding
speed (m/s)
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Chapter 1 Product Outline