MV-9_Chapter 5. Teaching.pdf - 第123页
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MV-9 User Manual
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Use color inspection
- Set this option to use color inspection. Check at „Use color inspection‟ to activate it on
solder amount inspection tap.
Solder inspection area setting
- This is manually set or set the degree of solder area from automatically found lead tip. real
solder area is common part of lead area found by lead separation and solder inspection
area set by lead tip offset value.
[Figure 5-135 lead tip and solder inspection area definition]
Manual
- Users manually designate position of lead tip. In general, use this option when position of
lead tip is not clearly separated and it is difficult to use auto search in binarization image.
- Lead tip offset: manually designate position of lead tip.
- Lead offset: used for solder amount inspection (advanced inspection). Designate start
position of lead area. Set to „0‟ for solder amount inspection (general inspection).
Auto
- In case of using lead tip auto search, adjust parameter to clearly divide position of lead tip.
- Since lead tip light is vertically fixed, adjust only binarization value and stripe width.
- Setting values in [Table 5-11] are recommended for setting of each item.
- When position of lead tip is not clearly divided after image adjustment, use manual setting
function to set lead tip.
Lead area
Lead tip set by auto or manual
Solder inspection area width
Solder inspection area
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5-123
[Table 5-11 lead tip – auto setting value]
Item
Recommended setting value
light
vertical (Fixed)
binarization type
auto
stripe width
0 ~ 2
area
High (30 ~ 60)
Min lead width
- Lead tip of some lead is not completely separated in binarization image and connected. At
this point, set min lead width to find lead tip by not distinguishing low width value lower
than setting value from lead and there is little connection shape.
- width value to be set uses a little larger value than the value width of connection shape.
(Initial value is 50 %.)
[Figure 5-136 lead tip start point min lead width]
Search start position
- Set position to start lead tip search. Set shoulder part of lead and position between lead
tips and start program search from this position to lead tip position during inspection.
(search direction: lead toward package → lead end)
[Figure 5-137 lead tip inspection position]
Search range
- Activated when color inspection is checked. set search range of lead tip auto search.
Search start position
Lead tip position
Min lead width of start point of lead tip
MV-9 User Manual
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Min fillet size
- Activated when color inspection is checked. set fillet size.
Lead tip range
- Activated when color inspection is checked. set range of average value of lead tip found by
auto search.
Use manual lead tip when auto lead tip search fails
- In case of insufficient solder, no solder and excessive solder, binarization image of lead tip
will not be displayed. In this case, conduct inspection using manual lead tip offset value set
by user when search of auto lead tip fails.
[Figure 5-138 Example of manual lead tip search when auto lead tip search fails]
Lead tip search example
- item and setting method activated by selecting „Use color inspection‟ and „lead tip manual /
auto search‟ is different. The followings are examples of each case.
[Table 5-12 lead tip detection setting parameter for each condition]
Lead tip detection condition
Activation item
Detection lead tip position
No use of color inspection –
manual
lead tip offset
lead offset
lead tip offset position
No use of color inspection –
auto
min lead width
search start
position
average value of individual lead tip
position
Use of color inspection–
manual
lead tip offset
lead offset
min fillet size
lead tip offset position
Use of color inspection– auto
search start
position
search range
min fillet size
individual lead tip position
Insufficient lead
Insufficient lead