ROTATION CONTROL AND DISTURBANCE FORCE COMPENSATION OF AIR TURBINE SPINDLE FOR PRECISION MACHINING USING HIGH-PRECISION, QUICK-RESPONSE PNEUMATIC PRESSURE REGULATOR

摘要

We have developed a high-precision, quick-response pneumatic pressure regulator and applied it to rotation feedback control of an air turbine spindle. We also set a disturbance force observer in the feedback control system to avoid changes to the rotation speed due to disturbance forces imparted to the air turbine spindle.The effectiveness of the proposed method was experimentally demonstrated through a rotation control experiment and a diamond cutting experiment.