Reflector focusing light path device for laser inner hole cladding head

Abstract

The invention provides a reflector focusing light path device for a laser inner hole cladding head. The device comprises an optical fiber laser joint, a collimating mirror, an adjusting flange, a light cylinder, a protective mirror and a 90-degree reflection focusing mirror, wherein the optical fiber laser joint is fixedly connected with the adjusting flange through the collimating mirror, the adjusting flange is movably connected with the light cylinder, the protective mirror is arranged in the end, connected with the adjusting flange, of the light cylinder, the 90-degree reflection focusingmirror is arranged in the other end of the light cylinder, the optical fiber laser joint, the collimating mirror, the adjusting flange, the protective mirror and the 90-degree reflection focusing mirror are located on the same straight light path, a light barrier is arranged at a focus of a laser reflected and focused by the 90-degree reflection focusing mirror, the light barrier is provided witha small hole allowing the laser to penetrate through and irradiate an inner hole machining portion, and a cold water channel for cooling the 90-degree reflection focusing mirror is further arranged inthe light cylinder.

Description

technical field [0001] The invention relates to the technical field of laser cladding, in particular to a reflective mirror focusing optical path device for a laser inner hole cladding head. Background technique [0002] Laser cladding can quickly repair the damaged inner hole surface of the workpiece. The service life of the workpiece is extended, and the use value of the workpiece is significantly improved. [0003] In recent years, with the development of high-power fiber laser technology, fiber laser has excellent laser characteristics and high photoelectric conversion efficiency, gradually replacing CO2 laser. Fiber laser is also used in inner hole cladding process. [0004] Due to the limitation of space, it is difficult to process the surface of small inner holes with a diameter of less than or equal to 50 mm by using the inner hole cladding device made of ordinary transmission focusing optical path. Contents of the invention [0005] The purpose of the present i...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of the prior art, and provides a reflector focusing optical path device for the laser inner hole cladding head, which can project the fiber laser onto the surface of the inner hole after collimating and focusing, solving Partially solved the problem of fixed-point and directional transmission of laser in small-diameter holes

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