Polishing mechanism, polishing device, and polishing method

A polishing device comprising:

• a plurality of polishing mechanisms, each of the plurality of polishing mechanisms comprising:
• a polishing member comprising a support member and a polishing portion configured to polish a workpiece, wherein the support member comprises an arc surface, the polishing portion is arranged on the arc surface, a polishing width of polishing portion in a one-dimensional direction is smaller than a width of a polishable surface of the workpiece, an eccentric member coupled to the support member of the polishing member, and a driving member coupled to the eccentric member;
• a connecting member, the plurality of polishing mechanisms being arranged on an outer peripheral surface of the connecting member at intervals;
• and
• a moving member coupled to the connecting member;
• wherein the driving member is configured to drive the eccentric member to rotate to drive the polishing member to reciprocate in the one-dimensional direction, and when a position of the polishing mechanism relative to the workpiece is fixed, an arc-shaped convex surface of the polishing portion of the polishing member polishes the workpiece by translating a polishing surface;
• wherein the moving member is configured to drive the connecting member and the plurality of polishing mechanisms to reciprocate in the one-dimensional direction, so that at least one of the plurality of polishing mechanisms polishes the workpiece.