OFF-LINE AOI in SMT line Inspection system:
1. Inspection objects: Skew, Tombstone, Wrong part, Missing, Overturning, Damaged, Cold joint, Insufficient solder, Excess solder;
2. Inspection components: 0201 chip components, IC pitch (0.3mm pitch), wave soldering point;
3. Inspection method: Image comparison, Optical Character Recognition (OCR), IC bridging analysis,Graphics Similarities Analysis, Color Analysis, Gray Analysis.
Optical system:
1. Camera: Color CCD (2.0 millon pixel), resolution: 15 μm, FOV: 20*20mm, Image processing speed < 250ms/FOV;
2. Light source: RGB cascade multi-angle LED combination lighting, high brigthness, service life: 30-50 thousands hours.
Software function:
1. Standard arithmetic: Image comparison, Optical Character Recognition (OCR), IC bridging analysis, Comparability Analysis, Color Analysis, Gray Analysis;
2. Software extension function: Off-line programming and inspection system, operation level management, CAD data input & output, Dual-face inspection, Skip inspection, Rework station & SPC, Camera bar code;
3. Inspection capability: 100 point/second, programming time: 1-2 hour/1000 components, NG inspection rate>99%, false reject rate: 0.05-3% (repeatability<3 pcs), false accept rate<0.01%;
4. MARK: 2 set up, support multi-board multi mark points, support Bad mark, Processing speed: 0.5 second/pcs.
Computer system:
Pentium Dual 2.0G, DDRII 2.0G, 160G hard disk, 19' wide screen.
Specifications:
| category | project | specifications |
| Visual identity system | | Discriminant method | Combined with weights imaging data difference analysis technology, color image contrast and color extraction analysis technology, the similarity, binary, OCR/OCV, distribution test and so on many kinds of algorithm comprehensive application | | camera | CCD camera resolution color: 12/15/20 micro/point, can be chosen | | Light source | RGB LED light source annular structure | | Image processing speed | 0201 components | <10milliseconds | | Every picture processing time | < 170milliseconds | | Testing content | The printing | Whether, skewed, tin much less tin, open circuit, pollution | | Parts defects | Lack of parts, migration, askew, made a, side made, turn over the pieces, polarity, wrong pieces, the damage | | Solder defects | Tin much, tin tin, even less | | Wave soldering detection | Little tin, tin, and solder bridge or even a short circuit, virtual welding, empty | | Anti-static measures | Antistatic socket, match anti-static ring |
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| Mechanical system | | PCB size | 25 MM × 25 MM MM to 340 MM x 480 < < (can be based on customers' specific requirements custom-made more specifications) | | PCB thickness | 0.5MM~2.5MM | | PCB Warping degrees | <2MM(a fixture auxiliary rectify deformation) (special request, you can custom) | | Parts height | Top≤25MM,Bottom≤70MM(special request, you can custom) | | Minimum parts | 0201 components | | X,Y platform | Drive equipment | Ac servo motor system | | Accurate location | <20 micron | | Movement speed | 700 mm/SEC (MAX) |
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| Software system | | Operating system | Microsoft Windows XP Professional | | Recognition control system | characteristics | Application right value image difference modeling technology and unique color, extraction analysis technology, the study ok samples, automatic establish standard images, identification data and error threshold | | operation | The graphic programming, bring their own database, according to component shape automatically choose the standard test box, precise automatic positioning, micron a tuning, process and quick | | Mark | points | Can choose two commonly used Mark points, more than-Mark function | | Recognition rate | 0.3 seconds/a |
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| Control system | | Computer host | Industrial control computer, Intel four nuclear CPU, 2 G DDR III memory, 500 G hard disk | | shows | 22 "LCD widescreen display |
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| Other parameters | | Mechanical shape dimension(L*W*H) | 90×108CM×134CM | | weight | About 480 kg | | power | Ac 220 v plus or minus 10%, frequency 50/60 Hz, rated power 600 W
Bring their own UPS |
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