Single beam time-division switching module for laser spot welding processing system

Abstract

The invention discloses a single beam time-division switching module for a laser spot welding processing system. The single beam time-division switching module is characterized in that the single beamtime-division switching module comprises an input energy transferring optical cable, an optical collimator, a light beam switcher, two or more output couplers and output energy transferring optical cables, wherein the output energy transferring optical cables communicate with the output couplers. The input energy transferring optical cable is connected to the optical collimator through an input energy transferring optical cable adapter head. A first optical channel is formed inside the optical collimator. A collimating lens is arranged inside the first optical channel. The optical collimatorcommunicates with the light beam switcher. The light beam switcher is provided with an optical gate and a rotatable reflector and communicates with the output couplers. The output couplers are each provided with a third optical channel, and focusing lenses are arranged in the third optical channels. Each output coupler communicates with the corresponding output energy transferring optical cable through an output energy transferring optical cable adapter head. By means of the single beam time-division switching module, the technical effect of time-division switching for light beams of a quasi-continuous optical fiber laser and a semiconductor laser is achieved.

Description

technical field [0001] The invention relates to the field, in particular to a single-beam time-division switching module for a laser spot welding processing system. Background technique [0002] Most of the laser spot welding systems currently on the market use YAG solid-state pulse lasers. Using a YAG solid-state pulse laser to provide laser pulses to one or more spot welding machines, commonly known as one-to-one, one-to-two, one-to-three laser spot welders, etc., has been widely used in the field of laser processing. In recent years, fiber lasers and semiconductor lasers have gradually replaced various gas and solid-state lasers used in the industrial field due to their advantages such as high electro-optical conversion efficiency, good output beam quality, small size and compact structure. In particular, quasi-continuous (QCW) fiber lasers and semiconductor lasers have begun to replace YAG solid-state pulse lasers with less than 4% electro-optic conversion efficiency an...

AI Technical Summary

Problems solved by technology

In particular, quasi-continuous (QCW) fiber lasers and semiconductor lasers have begun to replace YAG solid-state pulsed lasers with less than 4% electro-optic conversion efficiency and high maintenance costs

However, the laser output of quasi-continuous (QCW) fiber lasers and semiconductor lasers is through energy-transmitting fibers. The numerical aperture (NA) of the output fiber is generally 0.065 ~ 0.22, and it needs to pass through the optical collimator to meet the requirements of beam switching, which is an unsolved problem at present

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