Laser welding head and laser welding equipment

Abstract

The embodiment of the invention belongs to the technical field of laser welding, and relates to a laser welding head and laser welding equipment. The laser welding head comprises a driving assembly and an optical path assembly; the driving assembly comprises a rotating motor and a first magnetic attraction part which are connected with each other; the optical path assembly comprises a second magnetic attraction part, an optical path deflection lens and a focusing lens, wherein the second magnetic attraction part, the optical path deflection lens and the focusing lens are arranged in a combinedmode, the second magnetic attraction part is of a hollow columnar structure, and the optical path deflection lens is inclined relative to the focusing lens; the two ends of the optical path assemblyalong the central axis direction of a laser optical path are sleeved with bearings, the rotating shaft of the rotating motor is parallel to the central axis of the laser optical path, the rotating motor drives the first magnetic attraction part to rotate, and the overall rotation of the optical path assembly is further driven by the interaction of the first magnetic attraction part and the secondmagnetic attraction part. According to the scheme provided by the embodiment of the invention, spiral welding of a large-gap weld joint can be realized without adopting a galvanometer system, the structure is simple and the cost is low.

Description

technical field [0001] The embodiments of the present invention belong to the technical field of laser welding, and in particular relate to a laser welding head and laser welding equipment using the laser welding head. Background technique [0002] In the field of laser welding technology, for large-gap welds, the spiral welding method is generally used. The focused spot of the laser can quickly stir the molten pool at the weld, which can effectively avoid the generation of air bubbles, and the welding effect is good. Then the main way to realize spiral welding is It is realized by the galvanometer system, that is, the X and Y oscillating mirrors are driven by the galvanometer motor to swing at a small angle at a high speed, and the focal spot of the laser cooperates with the movement of the welding table to realize spiral welding. This kind of welding head has a complex structure and high cost. Contents of the invention [0003] In order to solve the above problems, the e...

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Problems solved by technology

[0003] In order to solve the above problems, the embodiment of the present invention provides a new type of laser welding head to solve the problem of complex structure and high cost of the welding head based on the galvanometer system used in the prior art. head laser welding equipment

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