Purpose And Applications Of Positioning Control - Mitsubishi Electric MELSEC-Q Series User Manual

1.1.2 Purpose and applications of positioning control

Punch press (X, Y feed positioning
Gear and ball screw
Y axis
servomotor
Servo
amplifier
Y axis
Palletizer
Conveyor control
Servomotor
(with a brake)
Servo
amplifier
Compact machining center (ATC magazine positioning)
Servomotor
Coupling Reduction
Servo
amplifier
Positioning
pin
QD77GF
<Number of tools: 12>
"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.
)
Y axis X axis
Y axis
X axis
Press head
Gear and rack & pinion
X axis
servomotor
Servo
amplifier
X axis
Conveyor
G
Reduction
gear
Ball screw
QD77GF
gear
ATC tool
magazine
Tool
(12 pcs., 20 pcs.)
Rotation direction
for calling
11, 12, 1, 2 or 3
1
12 2
19
Current 18
11 3
17
value
10 4 16
retrieval
15
position
9 5
14
13
8 6
7
Rotation direction
for calling 5, 6, 7, 8, 9 or 10
<Number of tools: 20>

Press
punching


QD77GF


Position detector
Palletizer
Unloader control


Rotation direction
for calling
17 to 20, 1 to 5
1
20 2
3
4 Current
5
value
6
retrieval
7
position
8
9
12 10
11
Rotation direction
for calling 7 to 16
1 - 5
Chapter 1 Product Outline
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.
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.
The ATC tool magazine for a compact
machining center is positioned.
The relation of the magazine's current value
and target value is calculated, and positioning
is carried out with forward run or reverse run to
achieve the shortest access time.