Development of Quality Measurement Tool for Complex Surface Machining Process

Abstract Sensors and measurement systems have a key position in the production process in Industry 4.0. To optimize the production quality of workpieces that have complex surfaces, such as mold, dies, turbine blades, etc., it is necessary to develop sensors and metrology. So far, the trajectory error has not been considered important, because it is still considered to be related to the appearance of the workpiece contour. In this study, it is proposed to develop a quality measuring instrument for complex surface production processes using a high-accuracy laser displacement sensor. The laser displacement sensor is installed on the machine tool spindle to measure the difference in the G-Code trajectory of the scanning movement of the laser displacement sensor with the same G-Code for the machining process. Laser displacement sensors can perform complex surface contour scanning of machined workpieces with accuracy below 30 μm. The sensor and measurement system that has been developed shortens the time for measuring the accuracy of complex surface production processes with high accuracy.