Fixing jig for overhauling valve parts

The utility model discloses a fixing jig for overhauling valve parts. The fixing jig comprises a base plate. A vertical plate is arranged at the upper end of the rotating disc; a first valve part clamping plate is rotationally connected into the vertical plate through a fifth bearing; a first rubber pad is arranged at the right end of the first valve part clamping plate; a groove is formed in the upper end of the rotating disc; the outer arc face of the lead screw is in threaded connection with a sliding block, the sliding block is in sliding connection with the groove, a vertical plate is arranged at the upper end of the sliding block, the interior of the vertical plate is rotationally connected with a first rotating shaft through a third bearing, a second valve part clamping plate is arranged at the left end of the first rotating shaft, and a second rubber pad is arranged at the left end of the second valve part clamping plate. The valve part can be inspected and maintained at multiple angles only by clampi