| 摘要 |
PURPOSE:To prevent a screw from being jammed and driven poor, in a screw driving machine for terminal board screws of electronic equipment, by separating the screw in the screw receiving part forward from the chute part and regulating the rectangular washer concerned. CONSTITUTION:A rectangular washer 3 is supplied from a chute part 21 to a screw receiving part 22 together with a screw 2 and its lateral position is controlled by a lateral-position controlling part 23. The back-and-forth position of the washer 3 is also controlled by the screw receiving part 22 and the position controlling part 23 advancing with the sway of a slide part 24 as far as under a screw driver 28 and by controlling arm 25, swaying and pushing the washer 3 to catch it in a front Side position controlling part 22c of the screw receiving part 22. Then a suction pipe 33 ascends and descends to lift the assembled screw 2 and washer 3 from the screw receiving part 22. Then the screw receiving part 22 and the position controlling part 23 retreat to a position connecting to the outlet end of the chute part 21, and the arm 25 also sways to its previous position. Then the screw driver 28 descends to drive the screw 2 with precision. |
