| 摘要 |
PURPOSE:To obtain a sub-arm unit of sure operation at high speed and low cost by providing a revolving means synchronously rotating the respective cam of a 1st cam driving means, 2nd cam driving means and 3rd cam driving means. CONSTITUTION:When a magazine pot 1 fitted with the tool designated to the succeeding tool is positioned at a changing position, a sub-arm under standby with a holding claw 34 at the magazine side at standby position is decelerated by a speed reducer 10 with a motor 8 being rotated, a rotary cylinder 22 is rotated via gears 18, 19, 23, and a rotary shaft 28 is rotated via splines 22a, 28a. A cylindrical groove cam 24 fitted to the rotary cylinder 22 and a composite cam disk plate 38 fitted to the rotary shaft 28 are synchronously rotated. Then, a series of three operations of the revolving, pull and insert and moving of a twin arm unit is performed in succession by the three synchronously rotating cam cylindrical groove cam 24, roller cam 39 and disk plate groove cam 40. |
