Transmission gear assembly cover plate die

The utility model discloses a transmission gear assembly cover plate die which comprises a die support, a servo motor is installed on one side of the die support, installation grooves are formed in the top and the bottom of the inner side of the die support, and two-way lead screws are arranged on one sides of the interiors of the two installation grooves in a sleeved mode. The two sides of the outer side of the two-way lead screw are sleeved with internal thread sleeve blocks matched with threads. According to the utility model, the two transmission gear structures consisting of the bevel gear sets are respectively driven by the rotating rod to force the lifting structure to be synchronously started, so that the lower mold plate and the upper mold plate are synchronously closed inwards to be closed, and the mold closing operation of the mold is changed into synchronous bidirectional adjustment operation from unidirectional adjustment; by means of the structure, the waiting time of die assembly machining of t