| 摘要 |
PROBLEM TO BE SOLVED: To provide a positioning device that can accommodate a change in feed screw driven by a composite oscillator type stator.SOLUTION: In a positioning device, nuts 20, 80 are coupled to an inner ring 31 of a rolling bearing 30, while a stator 40 is coupled to an outer ring 32 of the rolling bearing 30, whereby changing only output-side part such as the nut 20 coupled to the inner ring 31 can accommodate a change in feed screw (screw shaft 10, nut 20).SELECTED DRAWING: Figure 1 |
