00195722-0102_UM_X-Serie_SR605_EN - 第441页
User Manual SIPLACE X-Series 6 Station extensions From software version SR.605.xx 07/2008 EN Edition 6.9 PCB alignment 441 6.8.6.6 Positioning along the wid th of the PCB - Scanning beam along the direction of travel , P…
6 Station extensions User Manual SIPLACE X-Series
6.8 PCB barcode scanner From software version SR.605.xx 07/2008 EN Edition
440
6.8.6.4 Positioning along the width of the PCB -
Scanning beam across the direction of travel
Fig. 6.8 - 7 Positioning along the width of the PCB - Scanning beam across the direction of travel
6.8.6.5 Positioning along the width of the PCB -
Scanning beam along the direction of travel,
PCB barcode scanner 1D topside
Fig. 6.8 - 8 Positioning along the width of the PCB - Scanning beam along the direction of travel
PCB barcode scanner 1D topside
PCB barcode scanner LQ [mm] RQ [mm]
2D topside 3 3
1D topside 3 3
2D underside
a
a) If there is a dual PCB conveyor installed on the placement ma-
chine, we can provide a special design for retrofitting
the 2D PCB barcode scanner "bottom.
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1D underside 5 5
PCB dimensions/convey-
or
LO [mm] RO [mm]
460 mm / SC 3 20
508 mm / SC 3 44
216 mm / DC1 3 24
250 mm / DC1
450 mm / SM1
358
216 mm / DC2 3 3
250 mm / DC2
450 mm / SM2
33
User Manual SIPLACE X-Series 6 Station extensions
From software version SR.605.xx 07/2008 EN Edition 6.9 PCB alignment
441
6.8.6.6 Positioning along the width of the PCB -
Scanning beam along the direction of travel,
PCB barcode scanner 1D underside
Fig. 6.8 - 9 Positioning along the width of the PCB - Scanning beam along the direction of travel
PCB barcode scanner 1D underside
SC Single conveyor
DC1 Dual conveyor, track 1
DC2 Dual conveyor, track 2
SM1 Dual conveyor in Single conveyor mode, track 1
SM2 Dual conveyor in Single conveyor mode, track 2
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6.9 PCB alignment
Item no. 00119677-xx PCB alignment, single conveyor, SIPLACE HF/X/D3
Item no. 00119678-xx PCB alignment, dual conveyor, SIPLACE HF/X/D3
6.9.1 Description
PCBs to be processed sometimes have a length to width ratio of 1:2 or worse. This means that
the shorter side of the PCB points in the direction of travel. During travel, such PCBs may twist
slightly and, as a result, the fiducials no longer lie within the PCB vision camera's search window.
In this case, the "PCB alignment" option ensures that these PCBs are realigned precisely at the
stopping position.
If PCBs with recesses in the direction of travel are processed, this may result in different process-
ing positions on machines with mechanical stoppers (HS-50, S-25 HM, F5 HM) and on machines
PCB dimensions/convey-
or
LU [mm] RU [mm]
460 mm / SC 20 3
508 mm / SC 44 3
216 mm / DC1 3 3
250 mm / DC1
450 mm / SM1
33
216 mm / DC2 24 3
250 mm / DC2
450 mm / SM2
58 3
6 Station extensions User Manual SIPLACE X-Series
6.9 PCB alignment From software version SR.605.xx 07/2008 EN Edition
442
that monitor this position with laser light barriers (X-series, HF-series, HS-60, S-27 HM). The "PCB
alignment" option ensures that the PCBs are stopped at the same position on all PCB conveyors.
The "PCB alignment" option is available for both single and dual conveyors.
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Fig. 6.9 - 1 PCB alignment
(1) Lifting table
(2) PCB stop
The PCB is transported into the placement area until the laser light barrier triggers the stop signal
for the PCB conveyor. The lifting table with the PCB stops then moves up into a position in which
the PCB is not yet clamped and can still be moved by the conveyor belts. The two PCB stops are
level with the PCB, and the PCB supports (magnetic pins) are already in contact with the PCB.
The two conveyor belts move the PCB against the PCB stops and align them at the same time.
The lifting table then moves into its top end position, clamps the PCB and releases it from the PCB
stops so as not to affect the placement process. After the placement process, the lifting table and
PCB alignment are lowered and the PCB is moved on.
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