创建组件识别数据的方法.pdf - 第8页
8/178 IM-SMT-VSNDI C-0002 -000 For exam ple, the row of the lea ds in N directi on shown in Figure 5 can be defined b y the coordinates of th e tip position ( part in the figure) of t he leftmost lead as a r eferenc e …
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Figure 3
Thus, the leads are defined as two different groups when the leads cannot be defined as a
single group due to the factor that individual lead width, lead pitch or lead length are different
or the lead pitches are not constant. (The Lead Groups can be defined up to 2 groups for
each direction.)
Each Lead Group can be defined based on the position and width of the reference lead, lead
length, lead pitch and number of the leads.
For a component shown in
Figure 4
, the leads in one direction can be define based on the
following factors:
- the position of the reference lead
- the lead length
- the lead width
- the lead pitch
- the number of the leads
In order to define the leads of the component as a whole, Lead Groups need to be defined for
each direction.
Figure 4
Group 1 Group 2
N
N direction reference lead position
E direction reference lead position
W direction reference lead position
S direction reference lead position
X
Y
Lead
width
Reflect Lead Length
Lead
pitch
Lead width
Lead pitch
Component center
Reflect Lead Length
N direction
E direction
S direction
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For example, the row of the leads in N direction shown in
Figure 5
can be defined by the
coordinates of the tip position (
part in the figure) of the leftmost lead as a reference lead
position X and reference lead position Y, while the lead length will be defined as “length”, the
lead width as “width”, the lead pitch as “pitch” and the number of the lead as “n”.
Figure 5
It is also possible to define the row of the leads in S, E and W direction in the same way.
When defining these directions, the points used as the reference are as follows:
- The S direction: the leftmost lead
- The E direction: the uppermost lead
- The W direction: the uppermost lead
(In
Figure 5
, the lead with
mark is the reference lead, and its tip is the reference lead
position.)
As shown in
Figure 6
, when the leads in a single direction have different width and pitches,
they are divided into two groups and then defined. For example, the row of leads in the N
direction shown in
Figure 6
can be defines as follows:
Figure 6
<< Group 1: Left-side group in N direction >>
Reference lead position X1
Reference lead position Y1
Lead length: length 1
Reflect Lead Length
Lead
width
Lead pitch
N direction reference lead position
N
E
W
S
Group 1
Group 1
Group 2
Group 1
Group 2
Group 2
Group 2
G
roup 1
Component center
N direction
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Lead width: width 1
Lead pitch: pitch 1
Number of the leads: n1
<< Group 2: Right-side group in N direction >>
Reference lead position X2
Reference lead position Y2
Lead length: length 2
Lead width: width 2
Lead pitch: pitch 2
Number of the leads: n2
As shown in Figure 6, the groups are specified as Group1 and Group 2, from left to right in the
N/S direction, and from top to bottom in the W/E direction.
The definitions are made in the same way for the S, E and W directions.
This is how to define the component shape. Detailed setting items for the component data are
as follows:
<< Details of the component data>>
Items to be set
Set
value
Explanation
Alignment Group Sets the component category.
Alignment Type Sets the component type.
Comp. Threshold
Sets the threshold value or the level
difference.
Comp. Tolerance
Specifies the shape tolerance as a
percentage.
Search Area (mm) Sets the range of the detection.
Body Size X (mm) Sets the size of the outer edge.
Body Size Y (mm) Sets the size of the outer edge.
Body Size Z (mm) Sets the size of the outer edge.
Cntr. Offset X (mm)
Sets the offset amount in the X direction
from the center position.
Cntr. Offset Y (mm)
Sets the offset amount in the Y direction
from the center position.
Cntr. Offset R (mm)
Sets the offset amount of the angle of
rotation.
Ruler Width
Algorithm
Selects the recognition algorithm when
using a special algorithm.
Base Alignment
Selects the basic component type when
using a special algorithm.
Vision Option Sets option parameter 1.
Vision Option 2 Sets option parameter 2.
Vision Option 3 Sets option parameter 3.
Common
Data
Vision Option 4 Sets option parameter 4.