| 摘要 |
<p>The machine part is assembled of a work-piece holding unit (5) and a feeding unit (1) moving the work-piece towards the processing area with a spindle drive, a hydraulic drive, a serrated belt of a pneumatic cylinder. An element with a concave upper surface (2) is attached to the top of the feeding unit (1) accommodating a helical spring (3) inside the depression. The outer ends of the spring (3) are held by u-shaped components (4). When the feeding unit (1) is blocked the spring (3) is lifted from the depression and the drive separated from the driven part.</p> |
