Fire extinguisher shell welding surface treatment device

The utility model discloses a fire extinguisher shell welding surface treatment device which comprises a ramp, a plurality of metal cylinders are arranged at the top end of the ramp in the left-right direction, a support is installed at the top end of the right side of the ramp, and a spacing mechanism used for limiting the single metal cylinder is installed on the front side of the support. A mounting seat is mounted on the rear side of the support, a grinding wheel is rotatably mounted at the bottom end of the mounting seat, and the outer wall of the front side of the grinding wheel and the rear side of the ramp are located on the same plane. Wherein the spacing mechanism comprises a rotatable rotating seat. According to the fire extinguisher shell welding surface treatment device, in actual use, a metal cylinder at a grinding position can be limited, the end faces of the metal cylinders with different lengths can be tightly attached to a grinding wheel, positioning is stable, universality is high, the subs