Needle grinding base of biopsy needle grinding device

The utility model relates to a needle grinding base of a biopsy needle grinding device, and belongs to the technical field of biopsy needle manufacturing equipment. The needle grinding base of the biopsy needle grinding device comprises a water container, a waterproof cover, a driving motor and a needle grinding wheel, the waterproof cover is of a container-shaped structure of which the upper end is open; an assembly hole is formed in the waterproof cover; an isolation protection ring is arranged on the waterproof cover at the upper end of the assembly hole; a driving motor is arranged in the assembling hole; a water container is fixedly mounted on an output shaft of the driving motor; and a needle grinding wheel is fixedly mounted at the end of an output shaft of the driving motor in the water container through a locking screw. The needle grinding base of the biopsy needle grinding device is compact in structure and ingenious in design, the problems that an existing biopsy needle grinding device is large in