SG_FSE_SiplaceHF_HF3_00193901-05_eng - 第224页
1 - 24 S tudent Guide SIPLACE HF/HF3 6 Collect &Place-He ad / DLM2 Edition 09/2005 24 6.3.2 12 nozzle Collect & Pl ace head in home position 15 ° Fig. 6.3 - 2 12 nozzle Collect & Place head in home position 6…
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Student Guide SIPLACE HF/HF3
Edition 09/2005 6 Collect &Place-Head / DLM2
23
6.3 Placement sequence
Pick up and Placement Cycle of the Collect & Place head (DLM2) 6
6.3.1 Working positions at the placement head
Fig. 6.3 - 1 Working positions at the placement head
Key
(1) Optical centering
(2) turning station
(3) service position for segment; Removal of the sleeve on the opposite side
(4) pick up / placement / reject position
(5) working direction
(6) option: component sensor
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Student Guide SIPLACE HF/HF3
6 Collect &Place-Head / DLM2 Edition 09/2005
24
6.3.2 12 nozzle Collect & Place head in home position 15
°
Fig. 6.3 - 2 12 nozzle Collect & Place head in home position
6.3.3 PCB position recognition run to the PCB nominal position
Fig. 6.3 - 3 PCB position recognition run to the PCB nominal position
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the Star-axis is turned to home position.
When the X- and Y-axis is in waiting position
Star position:
15 degrees
Digit: 15.000
1 degree is equivalent to 1000 digits
The fiducial is expected at this nominal posi-
tion. The PCB camera is moved from waiting
position to this fiducial position.
– PCB position recognition is done before
the first component is picked up.
– The gantry axes move the PCB camera to
the theoretical fiducial position. The cam-
era takes the picture of the first fiducial
and the vision system calculates the cen-
ter position.
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Student Guide SIPLACE HF/HF3
Edition 09/2005 6 Collect &Place-Head / DLM2
25
6.3.4 PCB position recognition centering of the PCB fiducials
Fig. 6.3 - 4 PCB position recognition centering of the PCB fiducials
The centered fiducial define now theactual position of the board.
– The camera takes the picture of the second fiducial and the vision system calculates the center
position of this picture.
– The 2nd calculation is the deviation between nominal and calculated fiducial position.
– All board fiducials are optically centered with this procedure.
– This data is sent to the machine controller
– The correction values are calculated for the X, Y and the angular position of the PCB .
– Now the gantry axes move the placement head to the first pick up position
Please Note If synthetic fiducials are used nothing change on the described sequence. The only
thing what change: the Inkspot recognition could be done after fiducial recognition.
Please Note:
The PCB position recognition is carried out with both gantries in the placement area (with SW
505). 6