Abstract

The small-diameter tool is operated at a high number of revolutions, and it results in high-quality manufacturing with high productivity. Tool breakage occasionally occurs and becomes a serious problem in the field of automated production. The authors have proposed an image acquisition system for the tool that has a CCD camera and a tool projection image processing system to monitor tool behavior during cutting. The tool deflection is measured along two directions by using the monitoring system consisting of two CCD cameras. This monitoring system is connected to the machining center by Ethernet. The constructed system is able to control the machining center on the basis of the measured tool deflection values.