A high-precision system for processing images of the physical model of the impeller obtained by the optical system in transmitted and reflected light

The paper presents the development of a high-precision system for processing images of the physical model of the impeller obtained by the optical system in transmitted and reflected light. The paper presents the development of a high-precision system for processing images of the physical model of the impeller obtained by the optical system in transmitted and reflected light. The basis for increasing the accuracy of impeller geometry control is the assumption that there exist a correlation between the accuracy of the entire blade surface and the accuracy of the optically accessible zone of the blade if the conditions for shaping the blade surface are met in the optically accessible for measurements zone. In this work, the controlling trajectory for the measuring machine during the formation of a set of control images on the base of numerically relationships between the positioning coordinates of the cutter during 5-axis processing and conditions of the contact of the cutter . Thus, the image processing system allows to establish, based on a set of focal zones in images, the relationship between the coordinates of a physical object. The developed method allows for not only a significant increase in the measurement speed, but also for the identification and elimination of error in the contact of the cutter with the workpiece surface. A method for setting up a measuring machine is proposed, which ensures the required accuracy of product control during multi-coordinate high-speed milling. Based on the operation of the proposed system, the results of geometric accuracy measurements, linear and angular measurements and studies of the properties of machined surfaces of products equipped with slot of various shapes between blades are obtained.