SG_FSE_SiplaceHF_HF3_00193901-05_eng - 第443页

1 - 15 S tudent Guide SIPLACE HF/HF3 Edition 09/2005 10 Sitest 15 Machine zero point: 10 – The PCB-camera center is the reference at the gan try . All positions at the increment al encode r of X/Y -axis refer to this cam…

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Student Guide SIPLACE HF/HF3
10 Sitest Edition 09/2005
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10.2.3.2 Twin head
Fig. 10.2 - 5 Sequence Twin head calibration
Sequence of calibrate the Twin head
Machine zero point
Calibration tool position
PCB camera
y Camera coefficient (image scale -nm/pixel)
y Calibrate the camera center
y Calibrate camera angle to the MA-coordinate system
Travel range X/Y Axis
y calibrate the max and min position of the travel range
Twin head height
y Calibrate the height of the segment 1 and 2 (reference is
the top of the conveyor rail)
Twin head IC-camera
y Focus level
y Camera coefficient (image scale -nm/pixel), Angle
y IC camera position
y IC camera position fiducial
Twin head nozzle changer
y Calibrate the pick up position all magazines
y Calibrate pick up height
y Calibrate reject position
Twin head
y Head offset Segment 1 (PCB camera to Segment 1)
y Head offset Segment 2 (PCB camera to Segment 2)
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Student Guide SIPLACE HF/HF3
Edition 09/2005 10 Sitest
15
Machine zero point: 10
– The PCB-camera center is the reference at the gantry. All positions at the incremental encoder
of X/Y-axis refer to this camera center.
– A drilling is optically centered with the PCB-camera on a defined position at the calibration tool
support.
– Than the Zero point correction of the gantry axes are changed that if the PCB camera is above
this hole and the Positioncounter shows exactly the value of:
MA nullpunkt_x_PG1 631300 / MA nullpunkt_y_PG1 1298000. ( pg means gantry group)
MA nullpunkt_x_PG2 1368700 / MA nullpunkt_y_PG2 702000 ( See Fig. 10.2 - 2)
PCB camera: 10
– the Pixel size of the CCD sensors of the camera is determined in µm. Measured and calcu-
lated with Ax/Bx/Ay/By calibration values. Saved in KAM_DAT.MA as:XU_Pixel / YU_Pixel
(in 11600 nm Standard-PCB camera SST 5), (in 9900 nm Multicolorillum. PCB camera SST 18)
– The camera center is determined.
– This camera center is now the reference for all Position and Offsets of the gantry!!
– The Mounting angle of the CCD-chip in the camera to the Ma-coordinate system. Saved as
‘Kamera_winkel’ at the Data bloc of the PCB camera in KAMDAT.MA.
Calibration tool position:(optional) 10
– Calibrate the X and Y pick up position of the calibration tool.
Travel range:(optional) 10
– For travel range calibration move the respective axis: -to the Zero-pulse
– Then to the Hardware-limit switch
– Measure the position value at the position counter
– Calculate the position for SW-limit switch (Y +/- 1.5 mm , X +/- 0,5 mm)
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Student Guide SIPLACE HF/HF3
10 Sitest Edition 09/2005
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Component camera: 10
– the Pixel size of the CCD sensors of the camera is determined in µm. Measured and calcu-
lated with Ax/Bx/Cx/Ay/ByCy calibration values.Saved in KAM_DAT.MA as:XU_Pixel /
YU_Pixel (50000 nm 12 nozzle-comp.-camera SST 12) (81000 nm 6 nozzle-comp.-camera
SST 13) (27500 nm DCA-camera SST14)
– the camera center is determined.
– the Mounting angle of the CCD-chip in the camera to the turning level of the placement star is
measured.Saved as ‘Kamera_winkel’ at the Data bloc of the respective comp. camera in KA-
MDAT.MA.
Sequence segment offset bottom (II):
Sequence at one nozzle:
– is the calibration tool picked with a Nozzle under 0 degree; optically centered and placed with
the PCB-camera is the exact placement position determined (in µm).
– is the calibration tool picked with a Nozzle under 90 degree; optically centered and placed with
the PCB-camera is the exact placement position determined (in µm)
– is the calibration tool picked with a Nozzle under 180 degree; optically centered and placed
with the PCB-camera is the exact placement position determined (in µm)
– is the calibration tool picked with a Nozzle under 270 degree; optically centered and placed
with the PCB-camera is the exact placement position determined (in µm)
– This sequence is repeated. From the 8 placement positions is the average value of the place.
Deviation calculated and taken for the seg. offset.
– The calibration tool do not turn at this sequence.
PCB camera - Component camera offset:
– At the measurements for Segment offset bottom (II) we calibrate the PCB -> component cam-
era offset with Segment 1:
– The distance in X- and Y- direction of the camera centers is determined in µm.
– The camera center of the PCB-camera is the reference.
– This distance is saved in REAL.MA at ‘Kopfoffsets’ at Kopf 1 (or in future Kopf 2) Kopfoffset_X
/..Y. (The Segmentoffset bottom of Segment 1 is 0)
– The Segment offsets of the other 11 (5) Segments are saved, as a deviation to segment 1, in
PIP_OFF.MA.
– For the Segment offset bottom the values are without limits.