Explosive pressing auxiliary device for screw forming mold

The invention discloses an explosive pressing auxiliary device for a screw forming mold. The explosive pressing auxiliary device comprises a positioning ring fixed to the joint of a front cone and a rear cone of an inner cavity of the mold, a center baffle ring arranged on the inner side of the positioning ring and a connecting rib used for connecting the positioning ring and the center baffle ring. The outer side of the central baffle ring is a cylindrical surface, the two axial ends of the cylindrical surface are flush with the end faces of the two ends of the positioning ring, the inner side of the central baffle ring is a circular-truncated-cone-shaped through hole with the small front end and the large rear end, the two ends of the circular-truncated-cone-shaped through hole are connected with the two ends of the cylindrical surface through conical surfaces respectively, and the taper of the rear conical surface is larger than that of the front conical surface; the axial width of the connecting rib is co