F-0602 磁歪効果を利用した切削抵抗力および工具たわみ検出センサ(S41-1 生産システムにおけるハードウェア技術(1))(S41 生産システムにおけるハードウェア技術)

Abstract

A method based on the phenomena so called Villari effect that magnetic field changes according to strain of ferromagnetic material was proposed to detect x-, y-, and z-components and the torque of cutting force and cutting tool deflections in x-, y-directions, respectively. In this study, cutting force is identified by detecting the magnetic field states of ferromagnetic material deposited on the tool shank surface. The magnetic field states arisen in ferromagnetic material are detected by way of inductance change of the coil arranged close to the ferromagnetic material. A magnetostrictive sensor for detecting the three components and the torque of cutting force and cutting tool deflections in x-, y-directions was designed and developed. Fundamental experiments were carried out using the developed sensor. As the results, it was confirmed that the x-, y-, and z-components and the torque of cutting force and the tool deflections in x-, y-directions were simultaneously detected by developed sensor in a spot milling test and shoulder milling tests.