초록 ▼

Laser beam welding apparatus for effecting a weld along a part-circular path, the apparatus is intended for use in welding end flanges to semicylindrical shells to form semi-cylindrical journal bearings, particularly those having a flange at each end. The apparatus includes a laser source (11) and p

Laser beam welding apparatus for effecting a weld along a part-circular path, the apparatus is intended for use in welding end flanges to semicylindrical shells to form semi-cylindrical journal bearings, particularly those having a flange at each end. The apparatus includes a laser source (11) and pair of rotatably mounted housings (17) each supporting a laser nozzle (18), one on each side of a center line (32). Either nozzle (18) can be selected for operation by moving a mirror (13) in and out of the laser beam as is necessary when welding a flange at each end of the shell. Workpieces are held in jigs (39) in jig means (38) and are accommodated by moving the housings (17) towards and away from the center line (32). Welds of different radii may be achieved by moving the nozzle (18) radially with respect to the axis of rotation of the housings (17).

대표청구항 ▼

Laser beam welding apparatus comprising means for directing a laser beam along a reference axis to a housing carrying a laser nozzle and reflectors for supplying the beam to the nozzle, a motor arranged to rotate the housing and the nozzle about the reference axis, and jig means arranged to hold a w

Laser beam welding apparatus comprising means for directing a laser beam along a reference axis to a housing carrying a laser nozzle and reflectors for supplying the beam to the nozzle, a motor arranged to rotate the housing and the nozzle about the reference axis, and jig means arranged to hold a workpiece in a fixed position relative to the reference axis, characterised by a second housing carrying a second laser nozzle and reflectors for supplying the beam to the second nozzle and a second motor arranged to rotate the second housing and the second nozzle about the reference axis, the second housing being spaced from the first housing along the reference axis, and in which the jig means is arranged to locate the workpiece in the space between the two housings.