Development of Servo-clinometer Using Rotary Encoder and Precision Level

抄録

The purpose of research work is to develop a clinometer to measure the angular positioning deviations of a tilting axis with high accuracy. Five-axis machining centers consist of three translational axes and two rotary axes. The positioning accuracy of their three linear axes is checked by a laser interferometer. However, there is no measuring instrument to be able to measure the positioning accuracy of the tilting table whose center line is lower than the top surface of the table, automatically. Thus, a clinometer is developed for measuring the tilting axis of the five-axis machines table. The developed servo-clinometer consists of a rotary encoder and a pendulum with a precision level. When the clinometer mounted on the tilting rotary table moves around the tilting axis, the pendulum moves according to gravity and then its direction of the pendulum is adjusted by the servo-mechanism. Through the experiment, it was confirmed that the developed clinometer is enough to apply to the measurement of the tilting deviations.