Three-coordinate conversion machine for measuring aircraft quality characteristics, and measuring system

The invention discloses a three-coordinate conversion machine for measuring aircraft quality characteristics, which comprises an arc-shaped fuselage, a flowerpot-shaped test jig, a two-axis turntable and a balance block, wherein two parallel arc-shaped guide rails are arranged inside the upper part of the arc-shaped fuselage; the two-axis turntable is slidably arranged on the guide rails and respectively comprises a vertical driving part and an inclined driving part so as to adjust the height and the inclination angle of the test jig; the balance block is arranged near the horizontal placement end of the machine body; and the flowerpot-shaped test jig is used for arranging an aircraft to be tested. In addition, the invention also discloses an integrated system and a measurement method formeasuring aircraft quality characteristics by using the three-coordinate conversion machine. Compared with the prior art, all quality characteristic parameters of the aircraft can be measured during one-step installation by adopting the integrated test system and the measurement method provided by the invention, the working efficiency can be increased by multiple times, meanwhile, the safety and the reliability of the aircraft test can be greatly increased. By adopting the integrated test system and the measurement method provided by the invention, the product of inertia can be easily measured, and a breakthrough is made on the measurement method for the product of inertia.