Cleaning and polishing device for metal support

The utility model relates to the technical field of metal support cleaning and polishing, and discloses a cleaning and polishing device for a metal support, which comprises a workbench, a water leakage hole arranged at the top of the workbench, a right clamping plate fixedly connected to the right end of the top of the workbench, and a water outlet fixedly connected to the bottom of the right side of the workbench. Supporting legs are fixedly connected to the positions, close to the four corners, of the bottom of the workbench, a polishing mechanism is fixedly connected to the top of the workbench, a water pipe is fixedly connected to the top of the polishing mechanism, and a clamping mechanism is fixedly connected to the top of the workbench. The grinding assembly is fixedly connected to the top of the moving assembly, water is added to the surface of the metal support through the water pipe while the surface of the metal support is ground, the surface between metal is cleaned while grinding is achieved, was