| 摘要 |
<p>The device serves for generating a clamping force for the clamping members (2) of a clamping device (1) on an operating spindle (4), which can be driven in circulation, of a lathe. Arranged axially adjustably in the hollow operating spindle (4) is an adjusting rod (8) for actuating the clamping members (2), a movement conversion system (9), arranged on the operating spindle (4) so as to circulate with it, having an output member (10), which actuates the adjusting rod (8) axially, and an input member (12) which is rotatable relative to the operating spindle (4), is arranged parallel to the axis and is connected in terms of drive to an adjusting wheel (11', 11") which is arranged coaxially and rotatably on the operating spindle (4). The clamping device (1) is connected rotatably to the operating spindle (4) and can be coupled and uncoupled by means of the coupling device (39) in the direction of rotation. The uncoupled clamping device (1) and the adjusting wheel (11', 11") can be fixed to prevent rotation by a locking member (40) or a locking device (41). Furthermore, between the output member (10) and the adjusting rod (8) is an axially non-positive connecting device (13) which allows free rotation of the two relative to each other. As a result, the clamping members (2) of the uncoupled clamping device which is locked against rotation can be actuated by driving the operating spindle. <IMAGE></p> |
