Trimming and punching composite die for engineering mechanical track link

The utility model relates to a trimming and punching composite die for an engineering mechanical track link, belonging the technology field of punching and shearing dies; the trimming and punching composite die comprises an upper die seat and a lower die seat, the upper die seat and the lower die seat are connected via a guide column and a guide sleeve, a concave die and a punch are fixed at the lower part of the upper die seat, and a convex die is fixed at the top surface of the upper die seat, the trimming and punching composite die is characterized by also comprising a die plate in a floating disposing between the upper die seat and the concave die, an ejector is fixed at the bottom surface of the die plate, the two sides of the die plate are respectively fixedly connected with a U-shaped plate, the U-shaped plate is in a sliding cooperation with a pull bar, the pull bar is vertically fixed on the lower die seat, and a stop boss is disposed at the top of the pull bar; The trimming and punching composite di