Machine tools are called "mother machines" that make machines, and are used to produce various products. Among them, numerical control machine tools, so-called NC machine tools, are used in a wide range of production processes, and it is difficult to find products around us that are not related to NC machine tools. In recent years, the environment surrounding the domestic manufacturing industry has become severe due to the diversification of products due to changes in market needs, the intensification of competition in the global market, and the shortage of engineers. In order to deal with these issues, our laboratory is working on research and development on technologies for improving the speed, precision, efficiency, and versatility of NC machine tools and the production equipment that surrounds them.
Basic Information
Faculty name/Affiliation
Naohiro Nishiguchi / Faculty of Science and Engineering Department of Mechanical and Precision Systems Science and Engineering
Specialized Fields
production system, mechatronics
Research theme
Research on surface quality improvement technology based on error transfer characteristics to machined surface
Research keywords
Machine tools, 5-axis control machining, CAD/CAM, production systems
Molds are used in the production process of many products around us, especially automobiles and plastic products. The manufacturing process of this mold includes "design", "processing by NC machine tools", and "polishing". receive greatly. Therefore, in order to reduce the man-hours of this "polishing process", research and development on increasing the speed and precision of NC machine tools has been actively carried out. In this research, we are focusing on high-speed and high-precision feed axes, which greatly contributes to the demands of these NC machine tools, and are working on research and development on measurement equipment and measurement technology for evaluating motion characteristics.
Transfer characteristics of motion error to machined surface
In this research, we are investigating how the feed axis motion error of NC machine tools affects the machined surface, focusing on its transfer characteristics. Here, we focused on the motion error when the direction of motion of the feed axis is reversed, and investigated the transfer characteristics to the machined surface. As a result, it was found that the motion error of the convex shape is difficult to transfer to the processing surface, compared to the motion error of the concave shape with respect to the processing surface. By investigating the motion characteristics of these various feed axes and the transfer characteristics to the machining surface, we are working on the development of a function that efficiently compensates for machining errors caused by motion errors.
