Method for automatically measuring three-dimensional contour of complex polyhedron

The invention relates to the technical field of measurement, and particularly discloses a complex polyhedron three-dimensional contour automatic measurement method, which comprises the following steps: firstly, building a measurement system, and then calibrating the positions of an electric rotary table B and an electric rotary table C in a Cartesian coordinate system by using a standard ball; designing a measurement path of the complex polyhedron through rigid body transformation relations between the clamping mold and the complex polyhedron and between the clamping mold and the Cartesian coordinate system and a predicted complex polyhedron surface equation; according to the measurement path, measuring the complex polyhedron to obtain actually measured corresponding coordinates of a to-be-measured point on the complex polyhedron; and finally, evaluating a measurement result according to the actually measured corresponding coordinates, and according to the process, completing the three-dimensional contour mea