Laser welding device carrying multiple sensors

Abstract

The invention relates to a laser welding device, particularly to a laser welding device carrying multiple sensors. The device comprises a laser 1, a convex lens 2, a coaxial optical sensor 3, a lateral optical sensor 4, an acoustic sensor 5, a back sensor 6, a welding pool 7, a welded material 8, a charge detection meter 9, a welding nozzle 10, inert shielding gas 11 and a half-reflecting mirror 12, wherein the back sensor 6 is mounted at the back of the welded material 8; the welded material 8 is in series connection with the welding nozzle 10 through a lead; the middle of the lead is also in series connection with the charge detection meter 9. With the adoption of the device, refractory materials such as titanium, quartz and the like can be welded, anisotropic materials can be welded, and the effect is good; the device is exquisite in structure as well as safe and reliable to use and has the certain economical and applicable value, and the equipment manufacturing cost is moderate; the welding quality is good, the automation degree is high, and a large quantity of manpower and material resources are saved.

Description

technical field [0001] The invention relates to a laser welding device, in particular to a laser welding device carrying multiple sensors. Background technique [0002] Laser welding is one of the important aspects of the application of laser material processing technology. It is also often called laser welding machine and laser welding machine. According to its working mode, it can be divided into laser mold welding machine (manual welding machine), automatic laser welding machine, Laser spot welding machine, optical fiber transmission laser welding machine, optical welding is to use high-energy laser pulses to locally heat the material in a small area. The energy of laser radiation diffuses to the inside of the material through heat conduction, and the material is melted to form a specific molten pool. In order to achieve the purpose of welding. Laser welding process monitoring and quality control have always been an important part of the research and development in the f...

AI Technical Summary

Problems solved by technology

However, in actual laser welding, there are many factors that affect the stability of the focus position, including the change of the welding nozzle-workpiece distance caused by non-planar workpieces and welding deformation, the change of the focus position caused by the thermal lens effect of laser windows, focusing mirrors and other components, And the change of the focus position caused by the different positions of the beam in the flight optical path, etc.

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