Device and method for visual detection of welding quality of robot

A visual inspection device and robot welding technology, applied in welding accessories, manipulators, manufacturing tools, etc., can solve problems such as a large number of auxiliary equipment investment, and achieve the effect of saving auxiliary equipment investment, intuitive appearance and rich information.

Inactive Publication Date: 2013-08-07
柳州市自动化科学研究所
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  • Abstract
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Problems solved by technology

[0004] However, in the prior art, when a robot is used for welding, the visual sensor is usually installed on a follower mechani...

Method used

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  • Device and method for visual detection of welding quality of robot
  • Device and method for visual detection of welding quality of robot
  • Device and method for visual detection of welding quality of robot

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Embodiment Construction

[0024] Such as figure 1 As shown, a robot welding quality visual inspection device of the present invention includes a welding torch head 6 connected to the welding arm 2 of the robot 1, a vision gun 4 and a vision system, and the vision gun 4 is connected to the welding arm 2 to follow the welding torch The head 6 moves, observes the welding point and transmits the scanned picture information to the vision system; the vision system compares the received picture information with the standard formula data, and checks the splicing error of the weldment before welding and the weldment after welding. Real-time detection and judgment of point quality and welding process.

[0025] The vision gun 4 is connected to the welding arm 2 by an adjustable support 13 .

[0026] A method for visual inspection of robot welding quality of the present invention, comprising steps:

[0027] 1. Steps for establishing the standard recipe data for splicing error detection: splice the samples accord...

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Abstract

The invention provides a device and a method for visual detection of welding quality of a robot. The device and the method are characterized in that a visual gun is connected with a welding arm, moves along with a welding gun head, observes welding points and sends scanned picture information to a visual system. The visual system compares the received picture information with standard recipe data and detects and judges weldment splicing errors before welding, welding point quality after welding and a welding process in real time. The method includes: building splicing error detecting standard recipe data, building a welding point standard recipe after welding, building detecting standard recipe data during the welding process, obtaining tracks of the welding points before welding and weldment splicing error picture information, welding point picture information after welding and picture information during the welding process, and comparing the information with the standard recipe data. The device and the method have the advantage of achieving real-time detecting of the welding quality and closed loop feedback control, the detection device is matched with the robot directly to be installed, extra servo follow-up devices are not required to be designed and installed, and investment of a large amount of auxiliary devices is saved.

Description

technical field [0001] The invention relates to the technical field of welding quality detection, in particular to a robot welding quality visual detection device and a detection method thereof. Background technique [0002] Arc welding is an important process in industrial production, and welding quality inspection is an important process link in the welding process. At present, the link quality testing methods mainly include: destructive testing, including mechanical performance testing, chemical analysis testing, metallographic testing; non-destructive testing, including appearance testing, radiographic testing, ultrasonic testing, magnetic testing, etc. These detection methods are all detected after the welding is completed. [0003] Modern industrial production has high requirements on welding efficiency. Automatic welding is an important part of today's industrial automation, and real-time quality inspection and control in the welding process is a technical focus and...

Claims

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Application Information

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IPC IPC(8): B23K9/32B25J19/04
Inventor 刘文烽邢印强谭仲海陶遇春
Owner 柳州市自动化科学研究所
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