Composite Torch Tips for Laser Filler Welding

Abstract

The invention provides a composite gun head used for wire filling laser welding. The composite gun head comprises a welding wire drawing mechanism, a wire feeding cable, a middle connecting frame, a four-freedom-degree displacement adjusting mechanism, a jacket accessory, a welding gun clamping frame and a fire filling welding gun. The lower end of the welding wire drawing mechanism is connected with the upper end of the wire feeding cable, the lower end of the wire feeding cable is connected with the wire filling welding gun, one end of the jacket accessory clamps the welding wire drawing mechanism, the other end of the jacket accessory is connected with the middle connecting frame, and the four-freedom-degree displacement adjusting mechanism is connected with the middle connecting frame and is connected with the wire filling welding gun through the welding gun clamping frame; the composite gun head is compact in structure, small and exquisite in size and high in reachability, compared with a conventional sliding table guide rail type adjusting manner, trapezoidal guide rails and dovetail grooves are adopted in Y-direction and X-direction freedom degree adjustment, bolt built-in design is adopted, the size is greatly reduced, integration and reachability of hybrid lasers are improved, and the composite gun head quite facilitates laser composite welding integration.

Description

technical field [0001] The invention relates to high-precision laser welding manufacturing, in particular to a composite gun head for laser wire-filled welding. Background technique [0002] At present, due to its high energy density, low heat input, small welding deformation, high welding efficiency and good welding quality, laser welding has been widely used and promoted in important fields of the national economy such as automobiles, shipbuilding, aviation, aerospace, and nuclear power. [0003] However, pure laser self-fusion welding requires high processing and assembly of the workpiece to be welded, and the bridging ability of the weld seam is poor, while laser filler wire welding has strong bridging ability due to the addition of welding wire to fill the weld seam, and the metal composition of the molten pool can be adjusted. control. Compared with laser-TIG hybrid arc and laser-MAG hybrid arc welding, since it does not involve arc welding process parameters such as ...

AI Technical Summary

Problems solved by technology

This design can easily adjust the welding wire height and wire feeding angle, but the distance between the light wire and the attitude angle is only realized by hinges, which is difficult to control accurately. In addition, the connecting plate design is large in size, insufficient in rigidity, and poor in space accessibility.

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