Metal surface treatment equipment

The utility model discloses metal surface treatment equipment which comprises a machine box, an installation through pipe is transversely arranged on the machine box, a rotating shaft is arranged in the installation through pipe in a rotating mode, a swing rod is hinged to a through groove, a movable block capable of being hinged to the swing rod is arranged in the rotating shaft, and the movable block is connected with the swing rod in a rotating mode. A movable block is arranged on the rotating shaft, a top pressing block is arranged on the movable block, a driving part capable of opening the top pressing block when the movable block moves is arranged on the movable block, a conical sleeve capable of opening the swing rod is arranged on the outer wall of the rotating shaft and located on one side of the swing rod in a sleeved mode, and a driving mechanism capable of driving the conical sleeve to move is arranged on the machine box. The device is simple in structure and suitable for workpieces which are prod