Patent ID: 7287409
Filing Date: 2007-10-30
Classification: B21D

Abstract:
1. A die cushion device, comprising a unitized die cushion module, the unitized die cushion module including: a cushion pad moving up and down in a vertical direction within a bed; a servomotor rotating a shaft; a power transmission mechanism transferring the rotating motion from the rotating shaft of the servomotor to a power conversion mechanism; the power conversion mechanism converting the rotating motion from the shaft of the servomotor into the up and down movements in the vertical direction of the cushion pad, the power conversion mechanism including a rotating member having a rotating axis extending in the vertical direction; and a guide member which guides the cushion pad in the up and down directions, wherein the shaft of the servomotor extends in the vertical direction, and wherein one working station of the bed is provided with one or more of the die cushion module.