SiplaceX4_en.pdf - 第399页

1 - 33 S tudent Guide SIPLACE X Edition 09/2005 8 Collect&Place-Head 20 33 8.3.7 Picking Up the First Component Fig. 8.3 - 7 Picking up the first component The remaining nozzles now pick up the compone nts as the st …

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Student Guide SIPLACE X
8 Collect&Place-Head 20 Edition 09/2005
32
8.3.5 Turning Nozzles 1 to 20 to the Pickup Angle (0° or 90°)
Fig. 8.3 - 5 Turning segments 1 to 20 to the pickup angle (0° or 90°)
8.3.6 Check Nozzle Length for Component Recognition
Fig. 8.3 - 6 Check nozzle length "component recognition by the component sensor, before pick up"
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Segment 1
Segment 11
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– The segments in the collect & place 20
head are turned
in succession, begin-
ning with segment 1, to the required
pickup angle of 0° or 90°.
– Note: each segment has its own DP drive
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CO - Sensor
Segment 1
Segment 11
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Component sensor measures at star
pickup position:
– Vacuum measurement: ’Segment open’
value
–the
component sensor measures the
nozzle length. The measured length be-
fore pickup is verified with the reference
length.
– If a length difference of -0.15mm or +
0.1mm is detected, the gantry axes
move the placement head into the ser-
vice position so that the nozzle can be
replaced.
– Measurement is performed during Z-
movement in the star pickup/placement
position.
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Student Guide SIPLACE X
Edition 09/2005 8 Collect&Place-Head 20
33
8.3.7 Picking Up the First Component
Fig. 8.3 - 7 Picking up the first component
The remaining nozzles now pick up the components as the star is stepped and turn these into the
correct centering angle, before they reach the component camera.
Note: All Vacuum measurements during the placement process are making in the background
and don‘t produce an error messages. The error messages about missing components or somth-
ing like that, will produce only from the component sensor.
8.3.8 Picking Up the 10th Component
Fig. 8.3 - 8 Picking up the 10th component
Star position 0°
– Vision system: no action
– Pick up / placement station: pick up first
component
– Z-axis downwards
– Vacuum check for component pickup
– Component sensor: direct measurement
after picking up the first component (ap-
plies accordingly to all other segments)
– Vacuum check after pickup: check holding
force of the component on the nozzle.
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Segment 1
Segment 11
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CO - Sensor
CO - Sensor
Segment 10
Segment 20
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A
Star position 162°
– Vision system: prepare SIPLACE Vision
for optical centering.
– Pickup/placement station:
pick up the 10th component
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A : The components previously picked up
are rotated to the centering angle. (center-
ing angle [0°, 90°, 180°, 270°] = place-
ment angle in 90° steps)
– Measurement of hold circuit for segment 1
(output to measuring sensor)
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Student Guide SIPLACE X
8 Collect&Place-Head 20 Edition 09/2005
34
8.3.9 Picking Up the 11th Component
Fig. 8.3 - 9 Picking up the 11th component
8.3.10 Picking Up the 12th Component
Fig. 8.3 - 10 Picking up the 12th component
CO - Sensor
CO - Sensor
Segment 11
Segment 1
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A
Star position 180°
– Vision system: optical centering of com-
ponent on segment 1.
– Pickup/placement station:
pick up the 11th component
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A : The components previously picked
up are rotated to the centering angle,
here. Empty nozzles are turned to the
next pickup angle.
– Measurement of hold circuit for segment
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CO - Sensor
CO - Sensor
Segment 12
Segment 2
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B
Star position 192°
– Vision system: optical centering of com-
ponent on segment 2 of this gantry
– Pickup/placement station:
pick up the 12th component
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A : The components previously picked
up are rotated to the centering angle,
here.
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B : The components are adjusted to their
placement angles, here.
– Measurement of hold circuit for segment
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