Edge grinding machine provided with combined roller grinding wheel

The invention discloses an edge grinding machine provided with a combined roller grinding wheel, and belongs to the technical field of ceramic and glass edge grinding machines. The edge grinding machine comprises a girder, the combined roller grinding wheel, a grinding wheel base, a motor and a power transmission device. The combined roller grinding wheel comprises a roller grinding wheel base body and a plurality of grinding wheel blocks. The multiple grinding wheel blocks are fixed to the periphery of the roller grinding wheel base body through screws. The grinding wheel base is arranged onthe girder. The combined roller grinding wheel is arranged at the center part of the grinding wheel base. The motor is arranged above the grinding wheel base. In the work process, if the grinding problem happens or after diamond powder on tooth-shaped grinding blocks is completely abraded, the tooth-shaped grinding blocks of the roller grinding wheel base body are directly detached and replaced with new tooth-shaped grind