| 摘要 |
<p>A gripper type chuck with means for detecting the position of the jaw members has jaw members 3 for gripping a work piece on a casing 2, a driving part 4 having a driving rod 9 to be moved linearly and reciprocally, a converting mechanism 7 for converting the linear reciprocal motion of the driving rod 9 into the opening or closing operation of the jaw members 3, a position detecting part 5 capable of detecting the operating position of the jaw members 3 for all the stroke, comprising a scale 33 displaced synchronous with the driving rod 9, and a reader 34 for reading the calibration engraved on the scale 33, and a linear guide mechanism 6 for guiding the linear reciprocal movement of the scale 33.</p> |
