Automatic measurement method for a plurality of integral impeller vanes

The present invention provides an automatic method of measuring a plurality of integral impeller blades, the method comprising the steps of: (1) on the CAD model to the first blade measurement planning, generating DMIS file; (2) the overall clamping impeller on the indexing means of the present invention is designed to locate the overall impeller workpiece coordinate system; (3) measuring the axial direction of the device, calculated eccentricity compensation and generate various other blades DMIS file; (4) the use of DMIS measurement file first blade ; (5) to start measuring apparatus other blades to rotate to the position of the first blade, the use of the blade DMIS measurement file until all the blades measurement is completed; (6) on the measurement results obtained by processing the measured data of each blade. Measuring method of the present invention enables automatic measurement of the overall plurality of impeller blades, eliminate measurement means axis and the whole center of the impeller axis deviation, high measurement accuracy.