Sealing ring assembling device

The utility model relates to a sealing ring assembling device. Sealing ring installation field, the device comprises a base table and a guide cylinder, the guide cylinder is arranged on the base station; the axis of the guide cylinder is perpendicular to the surface of the base table. A discharging pipe slides in the guide cylinder in the axis direction of the guide cylinder. Driving device is arranged on base table, a sleeve column is arranged in the guide cylinder, one end of the sleeve column extends into the discharging pipe, a cavity is formed in the circumferential side wall of the discharging pipe, the top end of the discharging pipe is connected with an exhaust pipe, the exhaust pipe communicates with the cavity, one end of the exhaust pipe is connected with a first exhaust pump, an annular slit is formed in the inner side of the discharging pipe, and the inner diameter of the discharging pipe is larger than the diameter of the sealing ring. The device has the advantages that the sealing ring is expan