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Synchronous control method and device of double-beam laser welding

A technology of laser welding and synchronous control, applied in laser welding equipment, welding equipment, manufacturing tools, etc., can solve the problem of low quality of double-beam laser welding, and achieve the effect of avoiding thermal deformation and improving quality

Active Publication Date: 2014-08-06
AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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Problems solved by technology

[0005] The embodiment of the present invention provides a synchronous control method and device for double-beam laser welding, which solves the technical problem of low-quality double-beam laser welding in the prior art

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  • Synchronous control method and device of double-beam laser welding
  • Synchronous control method and device of double-beam laser welding
  • Synchronous control method and device of double-beam laser welding

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Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0025] In an embodiment of the present invention, a synchronous control method for dual-beam laser welding is provided, such as figure 2 As shown, the method includes:

[0026] Step 201: During the double-beam laser welding process, obtain infrared images of the two-beam laser welding molten pool;

[0027] Step 202: analyzing the infrared image to determine the position error of the two laser beams;

[0028] Step 203: When the position error exceeds the preset distance threshold, send an instruction for adjusting the position of the robot to the two robots in the dual-beam laser welding syst...

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Abstract

The embodiment of the invention provides a synchronous control method and device of double-beam laser welding. The method comprises the following steps that in the double-beam laser welding process, an infrared image of a double-laser-beam welding pool is obtained; the infrared image is analyzed so as to determine the position error of two laser beams; on the condition that the position error exceeds a preset distance threshold, instructions used for adjusting the positions of robots are sent to the two robots in a double-beam laser welding system, and the positions of the two robots are adjusted until the position error is less than or equal to the preset distance threshold. According to the synchronous control method and device, the effect of adjusting the positions of the two robots according to the condition of the position error in real time is realized, the two laser beams can accurately coincide, and therefore the double-beam laser welding quality is improved.

Description

technical field [0001] The invention relates to the technical field of double-beam laser welding, in particular to a method and device for synchronous control of double-beam laser welding. Background technique [0002] Double-beam laser welding is a new welding process developed in recent years. A typical double-beam laser welding system generally consists of two robots and two fiber lasers, such as figure 1 As shown, the fiber laser has the characteristics of high energy conversion efficiency and small size. At the same time, the laser beam is transmitted through the optical fiber without external lenses, which greatly simplifies the difficulty of optical path design and maintenance. It is currently the mainstream application in the industrial field. KUKA robots have the characteristics of high precision, fast speed, and good openness. They are widely used in various industrial welding fields. The combination of KUKA robots and fiber lasers can maximize their respective adv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/21B23K26/70B25J13/08
CPCB23K26/032B23K26/20B23K26/702B25J13/08
Inventor 陈新松巩水利杨璟王彬郭路云
Owner AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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