PCB welding spot repairing method
A repair method and PCB board technology, applied in the field of PCB manufacturing, can solve problems such as low efficiency, waste of PCB boards, low degree of automation integration, etc., and achieve the effect of improving efficiency and ensuring product quality
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[0012] The method for repairing solder joints of a PCB board of the present invention, the specific steps are:
[0013] Step 1) Seamlessly splice the panoramic view of the circuit board with the color CCD in motion, and train the color threshold for identifying the solder joints and solder feet in the off-string mode. According to this as the detection standard, the circuit board is welded on the production line through in-line AOI Point and so on are automatically detected, and three types of circuit boards are classified from this. One: the original PCB board on the production line is qualified, and the result of the recognition after the AOI automatic detection is still qualified; second: the PCB board on the production line It is qualified, but it cannot be detected as qualified after entering AOI recognition (this type of ratio is very small), third: the PCB board on the production line is originally unqualified with defects, and it is still unqualified after enterin...
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