| 摘要 |
<p>The positioning and blocking device is used for two parts of a machine tool moved relative to each other by a screw element mounted on one part of the machine tool. The screw element engages a threaded piece carried by the other part. One element rotates in the machine tool part which carries it, whilst the other element is fixed to the machine. The rotating element (5) is fixed to a precise angular positioning disc (21) in whose edge is a slot (41). This slot (41) is cut to receive without any play, the end of a finger (44). This is acted on by a jack (48) on the machine trial part (1) carrying the rotating element (5).</p> |
