Centering position testing fixture for blank special-shaped workpiece

The invention discloses a centering position testing fixture for a blank special-shaped workpiece, which comprises a supporting bottom plate, X-direction brackets and Y-direction brackets, and is characterized in that the middle part of the supporting bottom plate is in positioning insertion connection with the workpiece along the X direction, the two sides of the supporting bottom plate are fixedly provided with the X-direction brackets extending to the upper part of a protruding part of the workpiece, and the supporting bottom plate at one side of the Y direction of the workpiece is fixedly provided with the Y-direction bracket; a plurality of inspection insertion rods are inserted into the X-direction bracket in a Z-direction sliding manner so as to lift, insert and inspect the total midspan width and the centering position of the protruding parts on the two sides of the workpiece; and a plurality of same inspection insertion rods are inserted into the Y-direction bracket in a sliding manner along the Y di