Finishing device for aviation casing casting blade and runner

The utility model discloses a finishing device for aviation casing casting blades and runners in the technical field of casting surface polishing, which comprises a support component, a top component is fixedly mounted at the top of the support component, a fixing component is arranged inside the support component and right below the top component, and the support component comprises a support bottom plate. A limiting ring is fixedly installed on the upper surface of the supporting bottom plate, vertical plates are fixedly installed on the upper surface of the supporting bottom plate and located on the two sides of the limiting ring, a containing groove is formed in the middle of each vertical plate, an electric telescopic rod is fixedly installed in each containing groove, and a top plate is fixedly installed at the top end of each electric telescopic rod. When the driving motor drives the aviation casing to rotate, the gear ring rotates, and the gear ring is in meshed connection with the gear, so that the g