Die holder of automatic cold heading machine

The utility model relates to the technical field of cold heading machine equipment machinery, in particular to a die holder of an automatic cold heading machine. The die holder of the automatic cold heading machine comprises a holder body and a die component, a die groove is formed in the holder body, and the die component is fixedly arranged in the die groove through beam mold screws, a buffering stopping block is formed at the bottom of the die groove, and the buffering stopping block is in detachable connection with the holder body. An assembling unit is adopted by the seat body of the die holder, the detachable buffering stopping block is arranged on the bottom of the die groove of the holder body, and when the buffering stopping block is stressed and worn to be deformed, the buffering stopping block can be directly replaced without replacing the holder body of the whole die holder, so that the service life of the die holder is prolonged, and the cost is reduced.