Annular magnet polishing device

The invention relates to the field of magnet machining devices, in particular to an annular magnet grinding device which comprises a rack, a feeding pipe is vertically fixed to the rack, feeding openings are symmetrically formed in the two sides of the feeding pipe, conveying discs are symmetrically arranged on the portions, on the two sides of the feeding openings, of the rack, and the conveying discs are driven by corresponding conveying motors to rotate. Positioning grooves are further evenly formed in the conveying disc, conveying rods slidably connected with the positioning grooves are arranged on the positioning grooves, conveying springs are fixed to the positions, on one sides of the conveying rods, in the positioning grooves, grinding openings are further symmetrically formed in the two sides, below the feeding opening, of the feeding pipe, and grinding rollers are arranged at the positions of the grinding openings. The grinding rollers are driven by corresponding grinding motors to rotate, and a gri