A real-time self-adaptive adjustment system and adjustment method for laser-arc hybrid welding

Abstract

The invention discloses a real-time self-adaptive adjustment system and adjustment method for laser-arc hybrid welding light wire spacing, belonging to the field of material processing engineering. Technical points: including laser beam capture detection system, welding wire capture detection system, guide rail movement mechanism, composite welding database system, computer control system. Use the laser beam capture and detection system to detect and capture the lateral position of the laser beam action point, and use the welding wire capture and detection system to detect and capture the position of the wire feeding end of the arc welding torch. The position data detected by the two are input into the computer control system to realize the calculation and identification of the distance between the light wires . Then, by inputting the basic parameters of composite welding into the composite welding database, the appropriate value of the distance between the light wires is retrieved, so as to realize the control of the guide rail movement mechanism by the computer control system to realize the real-time self-adaptive adjustment of the distance between the light wires before and during welding. The invention has a simple structure and can realize real-time self-adaptive adjustment of the distance between the light filaments.

Description

technical field [0001] The invention relates to a real-time self-adaptive adjustment system and an adjustment method for the distance between light wires, in particular to a real-time self-adaptive adjustment system and method for the distance between light wires for laser-arc hybrid welding, and belongs to the field of material processing engineering. Background technique [0002] Laser-arc hybrid welding technology combines the respective advantages of laser and arc two independent heat sources: laser heat source has high energy density, excellent directivity, and the characteristics of transparent medium conduction; arc plasma has high heat-to-electricity conversion Efficiency, low equipment cost, operating cost, mature technology and other advantages. Therefore, the shortcomings of the two are largely avoided: such as laser energy loss caused by the high reflectivity of metal materials to laser light, high equipment cost of laser equipment, low electro-optical conversion...

AI Technical Summary

Problems solved by technology

Therefore, the shortcomings of the two are largely avoided: such as laser energy loss caused by the high reflectivity of metal materials to laser light, high equipment cost of laser equipment, low electro-optical conversion efficiency, etc., and low energy density of arc heat sources , Poor discharge stability when moving at high speed, etc.

Although this method can realize the real-time adaptive adjustment of the distance between the light wires in the welding process, the laser keyhole is often irregular in shape and in the process of dynamic change in actual welding, and the position of the laser beam is often determined by the keyhole image. deviation, resulting in inaccurate adjustment results

In addition, the adjustment device lacks a corresponding database to match welding process parameters with different materials. In the actual application process, material data matching needs to be performed based on welding experience, and welding efficiency and application convenience are also affected.

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