Limiting rotary pressing head for automatic press fitting of explosive column

The utility model belongs to the technical field of explosive and powder assembly, and particularly relates to a limiting rotary pressing head for automatic press fitting of an explosive column. The pressing head body is connected with the screw through a tapered roller bearing, and the pressing head can freely rotate at the lower end of the screw under the action of the bearing. A polished shaft at the lower end of a screw is in interference fit with an inner ring of a tapered roller bearing, the tapered roller bearing is embedded in a groove in the upper end face of a pressing head body, a hexagon nut is screwed on the screw through a center hole in the lower end face of the pressing head body, and the pressing head body and the screw are firmly connected. The pressure head main body is cylindrical, and the lower end surface of the pressure head main body is a smooth round surface; a limiting ring is attached to the outer side of the pressing head body and connected with the pressing head body through threa