Workpiece turnover device

The utility model discloses a workpiece turnover device, which belongs to the technical field of tool clamps and comprises a hoisting mechanism, a turnover mechanism, a turnover mechanism and a turnover mechanism, and the hoisting mechanism comprises a cross beam and two connecting blocks arranged on the cross beam; a hoisting piece is hinged to each connecting block, and a hoisting plate is hinged to the end, away from the corresponding connecting block, of each hoisting piece; the number of the clamping jaw mechanisms is two. The two clamping jaw mechanisms are oppositely arranged; the two clamping jaw mechanisms are installed on the two hoisting plates correspondingly. The clamping jaw mechanism can rotate; the clamping jaw mechanism comprises a clamping jaw fixing plate, an upper clamping plate and a lower clamping plate are arranged on the clamping jaw fixing plate, and the distance between the upper clamping plate and the lower clamping plate is adjustable; according to the utility model, the workpiece