| 摘要 |
PURPOSE:To provide the position detecting device of a floating abrasive grain type polishing machine with which the position of a planet gear in the polishing machine can be detected correctly and automatically. CONSTITUTION:This polishing machine is provided with upper and lower level blocks 3,5, planet gears 4 having work holding holes 4a, and a sun gear 2b and a ring gear 8b meshing with the planet gears 4. A first marking hole 4b is provided on the center position of the planet gear 4, and a second marking 4c is provided on the part position of the planet gear apart from the first marking by a certain distance. A first detector 14 horizontally swinging around the axis of the sun gear as the supporting point and a second detector 15 horizontally swinging around the axis of the planet gear as the supporting point are provided above the polishing machine, and the first and the second markings are respectively detected by the first and the second detectors. |
