Orientation pressing device of radiation ring of large height-diameter ratio

The utility model discloses an orientation pressing device of a radiation ring of a large height-diameter ratio. A pressing machine comprises an upper pressing head, a lower pressing head and a controller. The orientation pressing device is arranged on a support of the pressing machine and comprises a controller, a lower female die made of non-permeability magnetic materials and an upper female die arranged on the lower female die and made of permeability magnetic materials, and the upper female die and the lower female die are provided with corresponding cylindrical cavities. An upper magnet exciting coil is arranged on the lower surface of the upper pressing head, upper core iron connected with the lower surface of the upper pressing head is arranged in the upper magnet exciting coil, the upper core iron is provided with a tubular upper punch, and a cylindrical upper core bar is arranged in the upper punch and capable of moving up and down relative to the upper punch. The orientation pressing device has the