MITSUBISHI ELECTRIC Mitsubishi Programmable Logic Controller QD75D - Manual (Page 26)

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MELSEC-Q
1 PRODUCT OUTLINE
Lifter (Storage of Braun tubes onto aging rack)
PLC MELSEC-Q Servo amplifier
Servomotor
B conveyor
Unloader
Loader/unloader
Aging rack
Lifter C
conveyor
Counter-
weight
A conveyor Servo amplifier
Reduction
gears
Servomotor
(with brakes)
Loader
Positioning module
G2
G1 QD75
•
During the aging process of braun tubes,
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.
Index table (High-accuracy indexing of angle)
Detector
Servomotor
Worm gears
Index table
Digital switch
PLC
MELSEC-Q
AD75
Servo
amplifier
QD75
•
The index table is positioned at a high accuracy
using the 1-axis servo.
Inner surface grinder
PLC
MELSEC-Q
QD75
a
b
c d
e
Servomotor
Servo
amplifier
220VAC
60Hz
1M
G
Inverter
Motor
Grinding stone
Workpiece
Motor
Fix the grinding
stone, feed the
workpiece, and grind.
Operation panel
G
1M
a. Total feed
amount (mm)
b. Finishing
feed amount (mm)
c. Compensation
amount (mm) d. Rough grind-
ing speed (mm/s)
e. Fine grinding
speed (mm/s)
Inverter
•
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.