| 摘要 |
<p>PURPOSE:To provide the press of which a clutch mechanism is unnecessary and the number of blow per unit hour can be increased by connecting via a differential gear mechanism the upper and lower parts turrets having freely rotatable metal dies and the driving system to synchronously rotate respectively the upper and lower metal dies. CONSTITUTION:In case of the work by a turret punch press 1 a work 47 is located, the rotation of he sun gear 31 of a differential gear mechanism 28 is restricted and the motor 16 of TDU of the turret driving system is driven. The upper and lower parts turrets 6, 7 are thus rotated in the same direction by the same angle synchronously, the using upper and lower metal dies 43, 45 are located and the rotation of each turret is fixed by a pin 46. Now when the motor 33 of the metal die driving systems CDU is rotated at the prescribed angle with releasing from the stoppage holding state, the sun gear 31 of a planetary gears 27 is rotated and the metal dies 43, 45 are synchronously driven rotatively by the prescribed angle. Due to the rotary angle of the motor 16 and metal dies 43, 45 being controlled with detection respectively by transducers 17, 49, it is performed correctly.</p> |
