Grinding equipment with grinding head convenient to replace

The utility model relates to the technical field of grinding equipment, in particular to grinding equipment with a grinding head convenient to replace, which comprises a connecting arm and the grinding head. A motor is fixedly connected to the top of the connecting arm, a shaft rod is fixedly connected to the output end of the motor, a mounting base is fixedly connected to one end of the shaft rod through the connecting arm, a first fixing plate is fixedly connected to the bottom of the mounting base, and a second fixing plate is slidably connected to the mounting base; a first fixing plate and a second fixing plate are arranged on the upper portion of the locking block, a hinge is arranged between the first fixing plate and the second fixing plate, the upper end of the grinding head is inserted between the first fixing plate and the second fixing plate, and a protruding block is fixedly connected to the outer wall of the grinding head. And through the hinge arranged between the first fixing plate and the sec