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Optical Calibration and Adjustments:
Figure 37: Calibration Plate
Figure 38: Calibration Tip
Calibration Procedure:
1.
Remove the covers from the camera lens and light housing (Fig. 17) and install the calibration
plate (1) onto the board support.
2.
Remove the nozzle and vacuum tip (Fig. 29) and install the calibration tip (2). Adjust the optics
train stop according to Figure 39 if necessary.
3.
Adjust the mirror according to Figure 40 if necessary.
4.
Move the head to the rough DOWN position and then adjust the Z height so the calibration tip
(2) is just above the blind hole (3) in the calibration plate (1).
5.
Align the calibration tip with the plate as shown in Figure 41.
6.
Use the video alignment system to view the superimposed image of the tip and the hole in the
plate. It is important not to allow the X and Y axes to move at this time.
7.
If the tip and hole in the plate appear concentric, then no adjustment of the prism is required. If
the tip and hole appear misaligned, adjust the prism according to Figures 42 and 43.
8.
Replace the vacuum tip, and any covers which have been removed.
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2
Figure 39: Optics train stop adjustment
Bring the head to its uppermost position. Move the
optics train to the right until it stops (Fig. 17).
Adjust the Z height so the calibration or vacuum tip
is just above the top lighting and visually check that
the tip is centered left to right with respect to the
prism. Gauge the centering of the prism with a
graduated scale, if one is available. If the optics
train position requires adjusting, adjust the stop
screw (4) accordingly.
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3