| 摘要 |
<p>1. Device for loading and unloading workpieces for a machine tool, such as a lathe, having workpiece-holding means (2, 102) of specific axis (3, 103), this device comprising a support (7, 107) carried by the machine and a member (12, 112) for gripping a workpiece (18, 118) and fast to an arm (10, 110) which has an inherent mean direction (11, 111) and which is connected to the support (7, 107) via articulation means (7, 8, 9, 17, 108, 109) guiding the arm (10, 110) in such a way that its mean direction (11, 111) describes a conical surface of revolution (14) about an axis (9, 109) fixed relative to the support (7, 107), to allow the gripping member (12, 112) to move relative to the support (7, 107) between at least two preferential positions (A, B), in which this gripping member (12, 112) is respectively placed (A) in the axis of the workpiece-holding means (2, 102), in relation to which the mean direction (11, 111) of the arm (10, 110) then has a specific orientation, and (B) offset relative to the said axis, characterised in that such device comprises means (133, 134) for adjusting the conicity (gamma, c) of the said conical surface (14).</p> |
