| 摘要 |
PURPOSE:To prevent the rate of operation of a board assembling system from lowering due to the operation for deciding pass/fail of each unit board when a printed board comprising a plurality of unit boards is subjected to a predetermined work. CONSTITUTION:When a parts is being mounted, a photosensor is moved on a transfer arm 17 by means of a moving unit 31. The transfer arm itself 17 is moved by means of a pulse motor 11 thus detecting a bad mark 29 on the unit board in a printed board 5 being carried on a conveyor 7. |
