| 摘要 |
<p>In a device for positioning the tool head support plate (15) of a machine tool crib in the required head change position, a tool head support plate (15) is carried by a crib chain (10) provided with rollers (12) siidable along fixed guides(13); the device comprises means for contacting (28, 29) the tool head support plate and means for locking (30, 35) it along the head transfer axis and means for anchoring (31, 36) the plate against fixed crib positions; the contacting and locking means comprise members for contacting (28, 29) abutments (16) on the plate (15), and members for locking (30, 35) these latter against said contacting members (28, 29); the anchoring means comprise members (31, 36) for pulling plate abutments (17, 18) against said fixed positions.</p> |
