00193407-02 HWWS SIPLACE Machine Accuracy EN.pdf - 第82页
© Siemens AG . . Änderungen vorbehalten SIPLACE Placement Systems ¾ the machine is working wi th different operati ng points for each placement angle, therefore the value of standard deviation increase (rotating axis rev…
© Siemens AG . . Änderungen vorbehalten
SIPLACE
Placement Systems
X-Y plot for each individual head
-150 -100 -50 0 50 100 150
x-offset [µm]
-200
-175
-150
-125
-100
-75
-50
-25
0
25
50
75
100
125
y-offset [µm]
x-y-diagram
C&P head 1
C&P head 2
x-axis
y-axis
Example 1: Offset between heads
© Siemens AG . . Änderungen vorbehalten
SIPLACE
Placement Systems
¾ the machine is working with different operating points for each placement
angle, therefore the value of standard deviation increase
(rotating axis revolves in a eccentric motion)
¾ specification not in tolerance (C
m
-value)
¾ the measured average value of each individual placement angle is
shifted in relation to the placement position
¾ the overall average value, nevertheless, could be correct
¾ offset correction for each individual placement angle is possible from SW
version 406.01.
Dependency on placement angle
possible root cause
Example 2: Offset at Placement Angle
© Siemens AG . . Änderungen vorbehalten
SIPLACE
Placement Systems
x-axis
y-axis
P&P head, each column display different angle
0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300
x [mm]
0
20
40
60
80
100
120
140
160
180
200
y [mm]
0° 90° 180° 270° 0° 90° 180° 270° 0° 90° 180° 270°
angle offset
Example 2: Offset at Placement Angle