Automatic grinding machine

The utility model discloses an automatic grinding machine which comprises a base, a support is installed on one side of the top of the base, a first conveying pipe is installed on the top of the support, and one side of the top of the first conveying pipe is communicated with a screening assembly. A conveying assembly is installed on one side of the top of the base, and one end of the conveying assembly extends into the screening assembly. A ball mill body is mounted on the other side of the top of the base; according to the utility model, along with the overturning of the sieve plate, fused alumina zirconia processing raw materials which do not meet the grinding condition can be automatically discharged out of the shell, so that the first conveying pipe and the second conveying pipe cannot be blocked, and the smooth degree during feeding is improved; according to the utility model, automatic feeding can be carried out through the belt conveyor, and meanwhile, fused alumina zirconia processing raw materials c