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Welding line detection device and method

A technology for welding seam detection and light-emitting device, which is used in measurement devices, optical testing of flaws/defects, and material analysis by optical means. Accurate rate, improve welding efficiency, and the effect of accurate weld detection

Active Publication Date: 2019-03-19
TANGSHAN YINGLAI SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiments of the present invention provide a welding seam detection device and method, which effectively solves the technical problem that the existing welding robot has low welding spot accuracy and cannot detect small weld seams, and achieves accurate weld seam detection and the ability to detect small weld seams. The technical effect of detecting and welding seams

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  • Welding line detection device and method
  • Welding line detection device and method

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Embodiment 1

[0035] Such as figure 1 As shown, the embodiment of the present invention provides a weld detection device, the device includes:

[0036] The laser 1 is used to emit a line laser, and make the line laser vertically incident on the weld seam of the object to be welded, so as to form a laser line along the weld seam;

[0037] Specifically, the laser 1 refers to a device capable of emitting laser light. According to the working medium, lasers can be divided into several categories: gas lasers, solid-state lasers, semiconductor lasers and dye lasers. Free electron lasers 1 have also been developed recently, and high-power lasers 1 are usually pulsed outputs. The pure quality and stable spectrum of light emitted by the laser 1 can be applied in many ways. The original lasers 1 were rubies excited by bright flash bulbs, producing a "pulsed laser" rather than a continuous steady beam. The quality of the speed of light produced by this laser 1 is essentially different from the las...

Embodiment 2

[0051] Such as figure 2 As shown, the present invention provides a weld detection method, which can be applied to the weld detection device described in Embodiment 1, and the method includes:

[0052] Step 110: emit a line laser through the laser, so that the line laser is incident on the weld seam of the object to be welded, and form a laser line along the weld seam;

[0053] Specifically, the laser emits laser light, which is incident on the welding seam of the workpiece, and a laser line is formed between the workpiece and the laser.

[0054] Step 120: Control the image collector to collect the first image including the laser line based on the first preset exposure time; obtain the first straight line based on the first image through the control device; further, the first preset exposure The time is 1 / 2700~1 / 3300s.

[0055] Specifically, the first image is obtained by turning off the light source after the laser is turned on, and reducing the exposure time of the image c...

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Abstract

The invention discloses a welding line detection device and method. The device comprises a laser device, used for emitting line laser and enabling the line laser to be perpendicularly emitted to a welding line of an object to be welded to form a laser line; a light emitting device, disposed on one side of the laser device and used for emitting a light and enabling the light to be emitted to the welding line of the object to be welded; and an image acquirer, disposed on the other side of the laser device and used for acquiring a first image including the laser line according to first preset exposure time and acquiring a second image of the welding line under the irradiation of the light according to second preset exposure time. According to the welding line detection device disclosed by theinvention, the technical problems of low welding efficiency and low accuracy of an existing welding technology are effectively solved; and technical effects of accurately detecting the welding line,improving the welding efficiency and accuracy, increasing the intactness, reliability and safety of the welding line, and then reducing the resource waste and the cost are achieved.

Description

technical field [0001] The invention relates to the technical field of laser detection, in particular to a welding seam detection device and method. Background technique [0002] With the rapid development of computer technology and sensor technology, welding robots have played a very important role in daily welding work. It has been greatly developed, and welding has become one of the largest fields of industrial robot application. Welding robots have been widely used in automobiles, motorcycles, construction machinery and other fields. [0003] However, in the process of implementing the technical solutions in the embodiments of the present application, the inventors of the present application found that the above-mentioned prior art has at least the following technical problems: [0004] Existing welding robots have low accuracy of welding solder joints and cannot detect small welds. Contents of the invention [0005] The embodiments of the present invention provide a...

Claims

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Application Information

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IPC IPC(8): G01N21/88
CPCG01N21/8806G01N21/8851G01N2021/8822G01N2021/8835G01N2021/8838G01N2021/8861G01N2021/888
Inventor 郑恩松徐昌隆李俊明王艳辉
Owner TANGSHAN YINGLAI SCI & TECH
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