Laser machining device

TL;DR: In this article, the utility model provides a laser machining device, which comprises a laser device, a first beam expander set, an iris diaphragm and a second reflector.

Abstract: The utility model provides a laser machining device, which comprises a laser device, a first beam expander set, a first iris diaphragm, a first reflector, an end reflector, a focusing object lens, a second beam expander set, a second iris diaphragm and a second reflector The laser device is capable of outputting multi-wavelength laser in a multi-path manner and suitable for outputting first wavelength laser and second wavelength laser, wherein the first wavelength laser passes through a first light path, and the second wavelength laser passes through a second light path The first beam expander set, the first iris diaphragm, the first reflector, the end reflector and the focusing object lens are arranged on the first light path The second beam expander set, the second iris diaphragm and the second reflector are arranged on the second light path, the second reflector is suitable for reflecting the second wavelength laser to the first reflector so that the second wavelength laser is coupled into the first light path, the second iris diaphragm is suitable for adjusting the spot size of the second path, and the first wavelength laser and the second wavelength laser are focused on the same focus through the focusing object lens by means of adjusting the distance between lenses of the first beam expander set and the distance between lenses of the second beam expander set Multi-wavelength output and coaxial machining can be realized, a working distance is constant, working efficiency is improved, and cost is reduced