Laser cutting machine for tube having different cross sections and diameters

摘要

This invention concerns a machine for cutting pipes (13) of different cross-section and diameter by means of a laser beam, comprising a laser source and a system of mirrors for directing the laser beam from said source to a cutting head (7) for focalising said beam on a pipe (13) to be cut through a relevant mirror. The cutting head (7) is fitted rotating on an arm (3) hinged on a bearing ring (4) said bearing ring being on board a carriage (5) sliding on a system of guide rails (8) that can move parallel to the pipe (13) to be cut. The rotation of the cutting head (7) and of the arm (3) and the movements of the carriage (5) and guide rail system (8) are coordinated by a control unit in such a way that the cutting head (7) always aims the laser beam at right angles with respect to the surface of the pipe (13) to be cut. The machine also features an extraction unit for the fumes produced by the pipe cutting operation, said unit being intended to receive the end of the pipe downstream of arm (3) and being susceptible to movement along a rail parallel to said pipe (13). IMAGE