| 摘要 |
<p>Machining apparatus designed for working the outside surface of objects of an essentially round shape, e.g. pipes, from the direction of the periphery, e.g. to make them thinner or to cut them, said apparatus comprising a rim (1) revolving around the object to be worked; and a working device (2) comprising a working cutter (3), a leverage element (4) and a counterweight (5), the leverage element (4) being connected to the working cutter (3) and the counterweight (5) and so pivoted that when the rim is revolving, the centrifugal force causes the counterweight to turn outwards and the leverage element (4) to push the working cutter towards the object being worked. The apparatus is provided with a guide (24) along which the working cutter (3) moves and by which it is supported, and that the leverage element (4) is so engaged in power transmission contact with the working cutter that the centrifugal force acting on the counterweight (5) causes the working cutter to move along the guide towards the object being worked.</p> |
