Laser light reflector base

Abstract

This article is a base for a laser reflector used to perform surface treatments, such as laser cleaning and surface modification, on the surface of a workpiece using a laser irradiated from a laser processing device. As shown in the "Top Perspective View Explaining the Use State," multiple plate-shaped mirror members are inserted obliquely into the top of the base. The multiple mirror members are inserted through through-holes formed around the periphery of the base, with each mirror member installed with its laser-reflecting surface facing upward. As shown in the "Reference Cross-Sectional View Explaining Operation," the workpiece is placed within an area surrounded by the multiple mirror members, and surface treatment is performed by irradiating the workpiece with a laser beam scanning from above to below within a predetermined area. The upper surface of the workpiece, facing the laser processing device that irradiates the laser beam, is surface-treated by the directly irradiated laser beam. Meanwhile, the side surface of the workpiece that does not face the laser processing device that irradiates the laser beam is surface-treated by the laser beam reflected by the mirror members. Furthermore, a plurality of cylindrical port sections are provided at predetermined positions along the circumferential direction on the upper side of the base of this article. The port sections are configured to be connectable to supply pipes (not shown) for supplying gases such as air or nitrogen, and are configured to supply the gas to the inner region of the base. Dust is generated when performing surface treatment with laser light, but this dust is blown out from the inner region of the base where the mirror member is installed by the gas supplied from the port sections, preventing it from adhering to the surface of the mirror member. Furthermore, the mirror member is cooled by the gas supplied from the port sections, thereby extending the life of the mirror member.

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