| 摘要 |
<p>The invention concerns a centre punch (2) comprising at least a punch (16) whereon acts a ram (10) via a striking pin (12). The ram (10) guided vertically in translation, has an inclined upper surface (34) against which is pressed an inclined surface of a wedge (32) driven by motor means (42, 44) to move the ram and produce punch stabbing.</p> |
