Hanwha SM481 PLUS Series Administrator’s Guide Eng.pdf.pdf - 第208页
7-50 Fast Flexible Placer SM481(L) PLUS Administ r ator’s Guide 7.2.2.5.1. Recognition Option Setup by Part Describes the option related paramet ers allowing a part to be recognized under various conditions by part. Le…
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Part Registration
the position of the part to be picked up by applying an offset based on the part
center.
Selecting this selection box will set the X, Y and Z offsets from the part center
from the actual part pickup position.
For more details regarding part recognition option parameters other than those described
here, refer to “7.2.2.5.1. Recognition Option Setup by Part”.
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Fast Flexible Placer SM481(L) PLUS Administrator’s Guide
7.2.2.5.1. Recognition Option Setup by Part
Describes the option related parameters allowing a part to be recognized under various
conditions by part.
Leadless Part (Chip)
Describes the recognition option applied to most of the leadless parts.
<Tolerance H(+)> edit box
In general, a part has a manufacturing tolerance. When the size of the recognized
part is larger than that in the registered part data, if its tolerance is not considered,
its inspection result will be no good.
Therefore, when recognizing a part, input the extent of the allowable difference
between the actual size and registered size as a percentage.
That is, when the value obtained by recognizing an actual part with the vision
system is greater than the input value, if the actual data value is allowed up to 1.3
times of the input data, the upper tolerance is 30%.
For the following chip parts, set the parameters referring to the following. For
other chip parts, it is recommended that the default value be used.
Chip-Circle
Tolerance is applied not to the length but to the area.
If a tolerance is applied to 10% of the diameter, the square of the diameter
must be applied. Therefore, apply 21% actually. (Tolerance (Over, Under)
=1.1´1.1=1.21 )
Chip-C 0402 /Chip-R 0402 /Chip-C 0603 /Chip-R 0603/ Chip-R 1005
Set the tolerance to be greater than the value to be set by more than 10%. For
example, when setting the tolerance to 20%, actually apply 30%.
<Tolerance H(-)> edit box
If the size of the recognized part is smaller than the registered part data, input the
tolerance as a percentage.
That is, when the actually recognized value is smaller than the input value, if the
actual data value is allowed up to 0.7 times of the input data, the lower tolerance
will be 30%.
For the following chip parts, set the parameters referring to the following. For
other chip parts, it is recommended that the default value be used.
Chip-Circle
Tolerance is applied not to the length but to the area.
If a tolerance is applied to 10% of the diameter, the square of the diameter
must be applied. Therefore, apply 21% actually. (Tolerance (Over, Under)
=1.1´1.1=1.21 )
Chip-C 0402 /Chip-R 0402 /Chip-R 1005
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Part Registration
Set the tolerance to be greater than the value to be set by more than 10%. For
example, when setting the tolerance to 20%, actually apply 30%.
<Ignore Center Offset> check box
If the <Ignore Center Offset> check box is not selected, when the part picked up
deviates from the part center by more than 20% compared to the part size, the
machine will dump the corresponding part.
If the part picked up deviates from the part center by more than 20%, even though
the part center offset is compensated, the machine will dump the corresponding
part because its placement accuracy is reduced.
However, if the <Ignore Center Offset> check box has been selected, the center
offset is not checked when recognizing a part.
For a chip part, if this function is applied, even though the part picked up deviated
slightly from the part center, the corresponding part is placed without being
dumped.
Memo This function is not applied to the Chip-Rect and Trimmer.
<Inspection in only 0°> check box
In the case of a specific part, the difference in the recognition ratio often occurs
according to the direction in which the part is picked up to the nozzle when
recognizing the part.
At this time, if this function is selected after registering the corresponding part
based on the direction for better recognition ratio, the part is recognized always at
the registered angle when recognizing the corresponding part.
<Rough Check> check box
If an error occurs during part recognition because the shape of the part to be
recognized does not exactly correspond to the vision algorithm data, select the
<Rough Check> check box.
If the <Rough Check> check box is selected, even though the special shape of the
part to be recognized is slightly incorrect compared to the vision data, if the part
layout is the same as the set vision data by checking the part layout, the part is
recognized normally.
Memo The 'Rough Check' function is apply only to the Chip-Rect and
Trimmer.
<R Flip Auto Check> check box
Selected when checking the flipping of Chip-R automatically.