General comprehensive measuring tool of fork-type root blades

The utility model discloses a general comprehensive measuring tool for detection of fork-type root blades and belongs to the technical field of a steam turbine blade measuring device. The comprehensive measuring tool comprises a framework, a locating fixture and a cross-section locating piece. The locating fixture provides three locating faces, namely a blade root back-plane locating face, a blade root outlet stream side locating face and a blade root large-shoulder side locating face. Thus, accurate locating installation of fork-type blade root is realized. The general comprehensive measuring tool of fork-type root blades has advantages of ingenious conception and reasonable design. Complex measuring contents of steam turbine blades of an ultra-large type fork-type blade root can be measured by a simple measuring method. By a detachable design, universality of the measuring tool is good, and multiple elements can be dismounted and replaced. In allusion to measurement of different blades, locating elements ca