Double-beam laser processing optical system

Abstract

The invention belongs to the field of laser processing, and discloses a double-beam laser processing optical system. The double-beam laser processing optical system comprises a pulse fiber laser (1) used for emitting main laser, a continuous laser (2) used for emitting auxiliary laser, a reflector (3) capable of adjusting deflection direction, a beam combiner (4), a focusing assembly and a laser scanning assembly, wherein the auxiliary laser is combined with a main laser through the reflector (3) capable of adjusting the deflection direction to form a double beam laser, the double beam laser is transmitted to a to-be-processed workpiece for the laser processing, and a relative position of a focusing light spot of an auxiliary laser and a focusing light spot of a main laser is kept unchanged all the time on a workpiece laser processing path. According to the system, the composition of components in the system and interaction relation among the components are improved, the auxiliary laser which the relative position of the focusing light spot always keeps unchanged with the focusing light spot of the main laser on the workpiece laser processing path is introduced, the double beam isrealized, and the problems of high price and the like of the high-power optical fiber laser can be overcome.

Description

technical field [0001] The invention belongs to the field of laser processing, and more specifically relates to a double-beam laser processing optical system. Background technique [0002] The fiber laser has a simple structure, small size, simple and reliable operation and maintenance, and does not require complex equipment such as water-cooled structures in semiconductor laser-pumped solid-state laser systems. Compared with lamp-pumped lasers, fiber lasers consume only about 1% of the electrical energy of lamp-pumped laser systems, and because optical fibers can only transmit fundamental spatial modes, the beam quality of fiber lasers is not affected by laser power operation. Fiber lasers are the most stable and easy-to-use of all solid-state lasers. Compared with traditional processing and other types of processing, high-power pulsed fiber lasers have obvious advantages. Nanosecond high-power pulsed fiber lasers have become the first choice for laser deep engraving and la...

AI Technical Summary

Problems solved by technology

[0004] In view of the above defects or improvement needs of the prior art, the object of the present invention is to provide a dual-beam laser processing optical system. By improving the composition of each component in the laser processing optical system and their interaction, the introduction of The focused spot on the laser processing path always maintains the relative position of the main laser focused spot and the auxiliary laser achieves dual beams, which can overcome the high price of high-power fiber lasers and the inability to flexibly adjust the auxiliary laser and The relative position of the main laser further improves the processing efficiency, and the optical path design of many auxiliary lasers is too complicated and inconvenient to install and adjust. Adjust the relative position of the auxiliary laser and the main laser to improve the efficiency of laser processing, especially the processing efficiency of laser cleaning and laser deep engraving

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