Using method of lower die pushing device of hot forging equipment

The invention discloses a using method of a lower die pushing device of hot forging equipment. After an initial position and a hot forging position of a lower die are set, a heated blank is placed inthe lower die at the initial position, then two pushing plate translation cylinders are synchronously controlled to enable one of the pushing plate translation cylinders to extend out and the other one of the pushing plate translation cylinders to retract back, the lower die is pushed into the hot forging position, then two clamping plate translation cylinders are controlled to synchronously extend out, and after two clamping plates firmly clamp the lower die, the hot forging equipment can be started to enable an upper die to press downwards to conduct hot forging; and after the hot forging iscompleted, the reverse control controls the two pushing plate translation cylinders to enable one of the two pushing plate translation cylinders to extend out and the other one of the two pushing plate translation cylinders t