Sealing ring machining and cutting device

The utility model discloses a sealing ring machining and cutting device, and particularly relates to the technical field of sealing ring machining and cutting devices, the sealing ring machining and cutting device comprises a device body and a fixing mechanism arranged on the outer wall of the device body, and the fixing mechanism comprises a lifting assembly; a limiting rod is arranged on the outer wall of the device body, when the cutting device is used for machining and cutting a sealing ring, in order to improve the adjustability of cutting and limiting of rubber pads of different sizes, a second servo motor can be started firstly, a gear rotates to drive a rack to slide along the inner wall of a lifting groove, and the rack slides along the inner wall of the lifting groove; a first servo motor is started according to the size of the rubber pad, a sliding block is driven to slide along the inner wall of a sliding groove through rotation of a threaded rod, and therefore a connecting box and the limiting ro