| 摘要 |
<p>An instrument (10) for aligning the spindle of machine tools such as drill presses or vertical milling machines at various angles with respect to a work surface. In one embodiment the upper portion of an elongated shaft (24) is engaged in the chuck (14) or collet of the spindle while the lower portion is operably mounted to shaft bearings (28, 32, 34), which permits the shaft to pivot, rotate and to move vertically and horizontally with respect to the work surface (16) of the machine tool. A displacement detector (54) for detecting pivotal movement of the shaft is mounted on a member of the shaft bearing in fixed relation to the pivot (30) of the shaft. A linear interface (40) provides contact between the shaft and displacement detector and permits predictable repeatable movement of the displacement detector. A frame base (70) can be interposed between the shaft bearings and work surface to facilitate the instrument's mounting and enclosure.</p> |
