| 摘要 |
<p>Device for supporting workpieces during machining, and in particular to support spectacle lenses, comprising a supporting member (13, 1) on which are arranged two clamp means (2) each designed to grip in the middle a portion of a lens (30), means (12, 11) being provided for moving the said supporting member (13, 1) on a horizontal plane relative to a fixed tool (20, 22); there are defined for each clamp means (2) a first axis more or less parallel to the mid-plane in which the gripped portion of the lens (30) lies, and perpendicular to the clamping direction of the said clamp means (2), and a second axis perpendicular to the said first axis lying in the same plane, each of the said clamp means (2) being able to be rotated about the said first and second axes by means of suitable rotary drive means (201, 211, 221, 301, 303, 403), and the said first axes of the two clamp means (2) being parallel to each other.</p> |
