Mitsubishi Electric MELSEC-L LD75D, User Manual

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1.1.2
Purpose and applications of positioning control
"Positioning" refers to moving a moving body, such as a workpiece or tool (hereinafter, generically called "workpiece")
at a designated speed, and accurately stopping it at the target position.
The main application examples are shown below.
(1) Punch press (X, Y feed positioning)
• To punch insulation material or leather, etc., as the same shape at a high yield, positioning is carried out with
the X axis and Y axis servos.
• After positioning the table with the X axis servo, the press head is positioned with the Y axis servo, and is
then punched with the press.
• When the material type or shape changes, the press head die is changed, and the positioning pattern is
changed.
(2) Palletizer
• Using the servo for one axis, the palletizer is positioned at a high accuracy.
• The amount to lower the palletizer according to the material thickness is saved.
LD75
15m/min
(1875r/min)
Press punching
12s
15m/min
(2000r/min)
160mm
320mm
Gear and ball screw
Y axis
servomotor
X axis
servomotor
Servo
amplifier
Servo amplifier
Press head
Y axis
Y axis
Y axis
X axis
X axis
X axis
Gear and rack & pinion
Conveyor
Conveyor control
Servomotor
(with brakes)
Servo amplifier
Reduction
gears
Ball screw
Position detector
Unloader control
Palletizer
(From LD75)
LD75