Water spraying device of metallographic specimen grinding and polishing machine

The utility model discloses a water spraying device of a metallographic sample grinding and polishing machine, which comprises a bottom plate, the top of the bottom plate is fixedly connected with a water tank, the inner sides of two bent pipes are respectively provided with a pump body, the tops of the two pump bodies are fixedly connected with a machine body, the bottom of the machine body is fixedly connected with the top of the bottom plate, and the bottom of the machine body is fixedly connected with the bottom of the bottom plate. The upper portion of the inner wall of a bent pipe is rotationally connected with a spraying pipe through a sealing bearing, and the lower portion of the outer wall of an inserting rod on the lower portion is movably connected with a bottom through hole of a square shell, a lower through hole of a vertical cylinder and an upper groove of a water tank. The utility model relates to the technical field of metallographic analysis equipment, through the cooperation among the filter