The utility model discloses a grinding apparatus. Grinding apparatus includes: griding assembly, drive assembly and spacing buckle, wherein: griding assembly includes mount pad and the piece of being connected with the mount pad of polishing, drive assembly includes fixed?baseplate, actuating lever, first spring and eccentric wheel, last guide rail and the axle support piece of being provided with of fixed?baseplate, the near -end of actuating lever slides and assembles in the guide rail, and distal end projecting shaft support piece is connected with griding assembly's mount pad, actuating lever and spacing between the near -end and axle support piece of actuating lever is located to first spring housing, the eccentric wheel pivot is adorned in fixed?baseplate for the near -end that promotes the actuating lever removes to the distal end, spacing buckle is fixed in fixed?baseplate for support to draw close with the surface of the piece of being polished and touch. Compare prior art, this scheme has reduced the operation degree of difficulty of the operation of polishing, has improved the efficiency of polishing, has promoted the effect of polishing simultaneously.