| 摘要 |
<p>PCT No. PCT/FI87/00161 Sec. 371 Date May 26, 1989 Sec. 102(e) Date May 26, 1989 PCT Filed Dec. 7, 1987 PCT Pub. No. WO88/04212 PCT Pub. Date Jun. 16, 1988.The invention relates to an apparatus for making divergent cuts chamfered relative to a cutting surface, e.g. welding chamfers, by means of torch cutting particularly in the internal cutting of cylindrical sheets, such as pipes. The apparatus comprises a torch (8) mounted on a fastening arm (2) at the end of a carrier arm (1), said carrier arm (1) being axially movable and rotatable around its axis. The fastening arm (2) at the end of carrier arm (1) is fitted with a transverse support arc (3), which carries an element (4) movable along an arcuate path and fitted with a longitudinal support arc (5), the latter carrying a mounting plate (6) for torch (8), the plate being movable along an arcuate path. The radii of the arcuate paths of support arcs (3, 5) are equal and their centers are equally far from the center line of carrier arm (1) at an axial distance from each other.</p> |
