创建组件识别数据的方法.pdf - 第44页
44/178 IM-SMT-VSNDI C-0002 -000 7. S pecia l 7: Direction c heck by Lead width The direction is determined by using the th ick leads in the lead ro w . Figure 37 2.5. SOJs <Items to be set f or SOJ> Items to be set…
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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)
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Figure 38
< Main light and Coaxal light are turned on>
Figure 39
< All the illumination sources are turned on: Main light , Coaxal light and Side light >
Figure 40
Lead length
Lead width
Pitch
Body Size Y
Body Size X