A high power laser welding head

Abstract

A high-power laser welding head includes a guiding plate, an outer cover, an inner cover and a joint, the circumference of the guiding plate is arranged with screw thread which is connected with the sole cover of the outer cover, the center of the guiding plate is arranged with a light-pervious hole, an inner air ring and an outer air ring, the inner air ring is connected with the outer air ring with an air course and is butt-jointed with the lower end of the air course of the inner cover, the outer air ring is communicated with one end of the nozzle and the other end of the nozzle is communicated with the light-pervious hole. The present invention has the advantages of reasonable designing, compact structure, convenient installing, little maintenance amount, simple operation, small heating effect of the laser welding head as the forced cooling of air cooling and water cooling are simultaneously provided, adapting for the long-time work, insulating the welding zone from the outer air as the strong-unreactive shielding gas is sprayed during operation, smooth welding, small welding seam width, small heat affected zone, high welding efficiency, good effect, completing the fine welding which can not realized in the traditional technique, and wide adopting industries, the invention can be adopted in various industries of machine manufacturing, rubber plastic product, petroleum chemical industry, watercraft and submarine manufacturing, water conservancy and electric power, aviation and spaceflight, apparatus and instrument, communication and artwork, etc.

Description

(1) Technical field [0001] The invention relates to parts of a laser welding machine, in particular to a high-power laser welding head. (2) Background technology [0002] With the development of science and technology, in recent years, laser technology has increasingly shown its superiority in welding, cutting and other processing techniques. The weld bead is smooth, the weld joint is fine in texture, and the overall welding quality is almost unmatched by other welding methods. Therefore, laser welding and cutting technology is increasingly recognized and adopted by people. [0003] However, there are certain deficiencies and deficiencies in the current high-power laser welding devices. The most important thing is that the laser welding head is close to the focus of the laser and close to the high temperature of the melting flame for a long time, so that the laser welding head is easily burned and lost. Ability to weld. [0004] The main problem of the laser welding head c...

AI Technical Summary

Problems solved by technology

[0003] However, there are certain deficiencies and deficiencies in the current high-power laser welding devices. The most important thing is that the laser welding head is close to the focus of the laser and close to the high temperature of the melting flame for a long time, so that the laser welding head is easily burned and lost. ability to weld

[0004] The main problem of the laser welding head commonly used at present is: the laser is directly projected on the workpiece, and the high-temperature ion cloud formed by ionization rises vertically to the laser lens and the strong laser reflection on the surface of the workpiece, which causes the laser lens to be damaged and lose its due performance.

What's more serious is that during the welding process, the high-temperature welding slag splashes everywhere, and it is easy to collapse and spray on the lens, which makes the expensive laser lens scrapped

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