Ingot casting roller maintaining and polishing device

The utility model relates to the technical field of polishing devices, in particular to an ingot casting roller maintaining and polishing device, which is characterized in that the weight of the bottom of a rack is increased through a counterweight device, two ends of an ingot casting roller respectively extend into two groups of bearings, and two groups of first hydraulic cylinders are contracted, so that the ingot casting roller is clamped by push plates on the two groups of bearings; then the ingot casting roller is driven to rotate through the driving device, meanwhile, the ingot casting roller is repaired through the polishing device, and then the concentricity of the ingot casting roller is detected through the detection device, so that the convenience and practicability of equipment movement are improved; comprising a fixing device, a driving device, a polishing device and a detecting device, the driving device, the polishing device and the detecting device are all installed on the fixing device, the f