创建组件识别数据的方法.pdf - 第43页
43/178 IM-SMT-VSNDI C-0002 -000 Items to be set Set value Alignment T ype S pecial Comp. Threshold Comp. T olerance Search Are a (mm) Body Size X (m m) Body Size Y (mm) Body Size Z (mm ) Cntr . Offset X (mm ) Cntr . Offs…
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(This specifies to use “degrees” as a unit, and when the value is 0, the check is
performed as “ 5 degrees” has been specified.)
An error occurs if the sum of the bending angles detected on the left and right
sides is larger than the value specified with Option 1. If the leads on the left and
right are bent in different directions as shown in
Figure 34
, an error occurs. If the
leads are bent in the same direction, as shown in
Figure 35
, no error occurs.
Figure 34
Figure 35
Set the detection line at the tip of the leads and at the root of the leads, and obtain the center
of these two lines. The tilt of the whole leads is detected based on these values. Detect the tilt
of the lead on both left and right side, then add these results.
The tip line is set to the inside of the Ruler Offset by the amount of the distance from the
lead tip to the Ruler Offset. The root line is set to the inside of the Ruler Offset by the amount
of the distance from the lead tip to the point equal to the value where the detection line offset
is subtracted from the lead length. For this reason, the length including the lead root portions
is set as Reflect LL unlike the usual case of setting.
Figure 36 shows the example of the bent lead check. An error has occurred due to the bent
leads. The lead length is set longer than the normal value in order to set the inside detection
line.
<Items to be set for SOP Special mode>
Items to be set Set value
Common Alignment Group Special
Bent angle of the lead
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Items to be set Set value
Alignment Type Special
Comp. Threshold
Comp. Tolerance
Search Area (mm)
Body Size X (mm)
Body Size Y (mm)
Body Size Z (mm)
Cntr. Offset X (mm)
Cntr. Offset Y (mm)
Cntr. Offset R (mm)
Ruler Width
Algorithm Special 6
Base Alignment SOP
Vision Option 1 5
Vision Option 2 0
Vision Option 3 0
Data
Vision Option 4 0
Items to be set Set value
Lead Group E 1
Common
Ruler Offset E 3
Lead Number: 1E 17
Reflect LL.: 1E (mm) 1.2
Lead Width: 1E (mm) 0.4
Lead Pitch: 1E (mm) 1.0
Find Pos X: 1E (mm) 5.1
E
Direction
Group
1
Find Pos Y: 1E (mm) 8.0
Lead Group W 1
Common
Ruler Offset W 3
Lead Number: 1W 17
Reflect LL.: 1W (mm) 1.2
Lead Width: 1W (mm) 0.4
Lead Pitch: 1W (mm) 1.0
Find Pos X: 1W (mm) -5.1
W
Direction
Group
1
Find Pos Y: 1W (mm) 8.0
Table 27
Figure 36
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7. Special 7: Direction check by Lead width
The direction is determined by using the thick leads in the lead row.
Figure 37
2.5. SOJs
<Items to be set for SOJ>
Items to be set Set value
Explanation
Alignment Group IC Sets the component category.
Alignment Type SOJ Sets the component type.
Comp. Threshold
Sets the detection level difference for lead
detection. (See
“Appendix 2. Detection level
differences used to detect leads (threshold value)
”.)
Comp. Tolerance
Specifies the tolerance of lead pitch 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.
Ruler Offset Sets the offset amount for the detection line.
Ruler Width 3
Lead Number
Sets the number of leads on one side.
Reflect LL. (mm)
Sets the lead length on the image.
Lead Width (mm)
Sets the width of the lead.
Lead Pitch (mm)
Sets the pitch.
Table 28
SOJs and SOPs are similar in terms of shape. However, unlike SOPs, the lead tips of SOJs
cannot be stably recognized in some cases (because the shape of the leads are not planer).
In order to improve the recognition rate, the positional relations between the leads are
checked and the combination best fits the component definition is extracted when the end
leads are detected.
Also, in some cases, all of the illumination sources (Main light, Coaxal light and Side light)
need to be turned on in order to light up the leads stably. In this case, “Yes” should be
selected from the “All Lighting On” recognition parameter.
As shown in Figure 40, the leads will be clearly recognized when all the illumination sources
are turned on.
Option 1: The position of the wide lead in the N/W
direction. (e.g.:4)
Option 2: The position of the wide lead in the S/E
direction (e.g.:2)