Laser stirring welding device with tactile tracking

Abstract

The invention discloses a laser stirring welding device with tactile tracking. The laser stirring welding device with tactile tracking comprises a shell, a collimating assembly, a mirror group, a numerical control mirror assembly, a focusing assembly and a tactile tracking assembly. The collimating assembly comprises an optical fiber interface and a collimating mirror; the mirror group comprises afixed mirror installed in the shell; the numerical control mirror assembly comprises a numerical control mirror and a numerical control mirror driving mechanism. A focusing mirror group comprises a focusing mirror installed in the shell; the tactile tracking assembly comprises a swinging seat, a motor, a guide pin and an encoder, and the guide pin is installed on the swinging seat; and the encoder is connected with a motor shaft of the motor. A control box assembly drives the numerical control mirror to rotate through the driving mechanism, so that spot formed by the concentrated laser on a workpiece is moved to the specified position, and the workpiece is welded by different laser stirring trajectory patterns according the requirements. Irregular welding seams can be compensated and tracked in real time, stability and reliability are achieved, the efficiency is relatively high, energy can be evenly distributed in wide welding seams, and relatively large depth of fusion is achieved.

Description

technical field [0001] The invention belongs to the field of welding technology, and more specifically relates to a laser stirring welding device. Background technique [0002] Weld seam tracking is of great significance in welding automation. It plays a positive role in improving the flexibility of welding equipment and ensuring welding quality. Especially when welding with complex weld shapes, simple machine trajectory teaching cannot guarantee welding quality. With the increasing demand for welding of large and thick steel plates such as ships, pressure vessels, and nuclear power plants, comprehensive indicators such as weld shape, width, and penetration depth have also been further improved, which puts forward higher requirements for existing welding equipment. [0003] In terms of seam tracking, existing technologies such as common visual sensors need to overcome the strong reflection of light during the welding process, the image is easily mixed with noise, and complex...

AI Technical Summary

Problems solved by technology

[0003] In terms of seam tracking, existing technologies such as common visual sensors need to overcome the strong reflection of light during the welding process, the image is easily mixed with noise, and complex follow-up processing is required to ensure tracking accuracy. Compared with tactile sensors, the structure is more complex, more expensive

In addition, the current laser stir welding (wobble) device is mainly used to complete the welding task of specific materials such as aluminum alloys, and its combination with seam tracking technology is relatively seldom, which limits its use efficiency to a certain extent

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