Special detection measuring tool for bending deformation of split type inner gear ring gear blank

The utility model relates to a special detection measuring tool for bending deformation of a split type inner gear ring gear blank, which comprises a measuring tool base, and the measuring tool base is provided with an outer positioning circular ring for stopping and limiting the outer cylindrical surface of the split type inner gear ring gear blank, and a positioning plate and a sliding positioning block which are used for stopping and limiting the end surfaces of the two sides of the split type inner gear ring gear blank; a first detection rod is inserted into a middle tooth groove of the split type inner gear ring gear blank, and a second detection rod is inserted into a tooth groove in the edge of one side of the split type inner gear ring gear blank; the measuring tool base is provided with a fixing table used for pressing the peripheral surfaces of the first detection rod and the second detection rod so that the first detection rod and the second detection rod are tangent to the two side wall bodies of