Six-surface grinding and polishing machine for columnar workpiece

The utility model discloses a six-surface grinding and polishing machine for a columnar workpiece. The six-surface grinding and polishing machine comprises a rack, a first grinding and polishing unit, a second grinding and polishing unit and a workpiece moving mechanism, wherein the rack is provided with a control box; the workpiece moving mechanism stretches across the table top of the machine frame. The first grinding and polishing unit and the second grinding and polishing unit are located on the side of the workpiece moving mechanism. A first reciprocating motion mechanism and a second reciprocating motion mechanism are further mounted on the rack; a first workpiece clamp is fixedly mounted on the first reciprocating mechanism; a second workpiece clamp is fixedly mounted on the second reciprocating mechanism; an automatic adjusting device is further installed on the rack and used for correspondingly adjusting the second grinding and polishing unit. According to the utility model, grinding and polishing of