Laser machining method
AssigneeNsk Ltd.
InventorsShingo Matsuo, Hiroaki Fujishiro, Etsuo Koike, Hironori Okado
Life of this patent
Estimating the term…
Abstract
A laser welding apparatus (1) includes a laser welding head (5) configured to irradiate a workpiece (10) with laser light, a welding filler feeding mechanism (6) configured to supply a welding material to a position on which laser welding is performed, and a hollow structural moving mechanism (100) configured to move a welding unit (50) including the laser welding head and the welding filler feeding mechanism. The hollow structural moving mechanism has an insertion portion (3a) through which an optical cable (41) of the laser welding head and a wire material (62) of the welding filler feeding mechanism are inserted.
Claims14
A laser machining apparatus comprising:
- a head having an optical outlet from which laser light is output;
- an optical cable attached to the head;
- a nozzle attached to the head to direct a material supplied to a target;
- and
- a moving mechanism having a driving portion;
- wherein the moving mechanism includes a first mechanism configured to allow the head to move in a curved manner in at least a two-dimensional plane and a second mechanism, which has a rotational axis and a cavity unit that has a cavity provided along the rotational axis, to allow the head to rotate 360° or more around the rotational axis along with the optical cable and the material,
- a tilting mechanism is arranged between the cavity unit and the head, the tilting mechanism is attached to the cavity unit and is configured to change an angle of the head with respect to the rotational axis, and
- a controller has an attitude control mode in which the moving mechanism is controlled so that the head rotates around the rotational axis while the head moves in the curved manner in at least the two-dimensional plane.
A laser welding apparatus which performs laser welding on a workpiece, comprising:
- a laser welding head configured to irradiate the workpiece with laser light;
- an optical cable attached to the laser welding head;
- a welding filler feeding mechanism attached to the laser welding head, and configured to supply a welding material to a position on which the laser welding is performed;
- a hollow structural moving mechanism configured to move a welding unit including the laser welding head and the welding filler feeding mechanism, the hollow structural moving mechanism comprising a cavity unit defining a rotational axis and including a cavity, the cavity being provided along the rotational axis and through which an optical cable of the laser welding head and a wire material of the welding filler feeding mechanism are inserted;
- and
- a tilting mechanism arranged between the cavity unit and the laser welding head, the tilting mechanism being attached to the cavity unit and being configured to change an angle of the laser welding head with respect to the rotational axis,
- wherein, in a state in which the optical cable of the laser welding head and the wiring material of the welding filler feeding mechanism are inserted through the insertion portion the cavity of the hollow structural moving mechanism, the laser welding head is allowed to rotate 360° or more around the rotational axis.
Dependencies are inferred from the claim text.