Laser processing device
AssigneeHonda Motor Co., Ltd.
InventorsHideaki Akahoshi, Kotaro Fujikura, Kohei Kanaya, Akira Yamaguchi, Akio Shimoda
Life of this patent
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Abstract
The present invention is a laser processing device wherein adhesion of fumes to a lens can be effectively avoided. The laser processing device is provided with a laser scanner provided with protective glass on a laser output opening, and a cylindrical member having a through path through which the laser output via the protective glass passes formed on the center side in the direction of the radius. A cylindrically shaped filter is disposed on an inside wall part of the cylindrical member facing the through path. The cylindrical member discharges a gas into the through path from the filter.
Claims5
A laser processing device comprising:
- a laser scanner having a lens provided in an output opening for a laser beam;
- and
- a tubular member having a through path, through which the laser beam output through the lens passes, the through path being formed on a center side in a radial direction thereof, wherein
- in an inner wall portion, which faces the through path, of the tubular member, a tubular filter is provided,
- the tubular member discharges gas from the filter into the through path,
- the through path has a cylindrical shape whose diameter is constant in an axial direction thereof,
- an inner surface of the filter occupies 50% or more of an inner surface of the inner wall portion, and
- a cross-jet gas injection unit configured to inject a cross-jet gas in a direction intersecting a traveling direction of the laser beam is provided between an irradiation target for the laser beam and the tubular member.
Dependencies are inferred from the claim text.