| 摘要 |
PURPOSE:To prevent a deviation of mounting by calculating a difference of a real area of an element to be recognized and a detected area after binary- coding, processing calculating a polygonal or circular shape in outer contact with the element to be recognized after binary-coding processing in a state for containing within a predetermined allowable value, and calculating its center of gravity as a position of the center of gravity. CONSTITUTION:When an electronic component 30 is mounted on a printed board, the board 31 is secured to a predetermined position in a mounting machine by a fixer pin 32. Board marks 33, 34 provided on the fixed board 31 are taken by an ITV camera 35, and its image data is sent to a visual recognition unit 36. Here, a deviation amount of a position of the center of gravity of the area of the marks 33, 34 binary-coded by binary-coding processing from a reference central position of a measuring window in imaged data is detected, and the component 30 is mounted on the board 31 while correcting the deviation amount. |
