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Arc welding robot jointing monitoring system based vision sensing

A technology of robot welding and visual sensing, applied in the system field of robot technology, can solve problems such as inability to realize online adjustment of welding parameters, inability to obtain real-time dynamic information of molten pool, etc.

Inactive Publication Date: 2008-07-23
SHANGHAI JIAO TONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since this system cannot obtain the dynamic information of the molten pool in real time, it cannot realize the online adjustment of welding parameters and the real-time control of weld quality.

Method used

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  • Arc welding robot jointing monitoring system based vision sensing
  • Arc welding robot jointing monitoring system based vision sensing

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Embodiment Construction

[0028] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following the described embodiment.

[0029] As shown in Figure 1, this embodiment includes: a visual sensing system, a double inverter arc welding power supply, an interface circuit device, a main control computer, a robot controller, and a welding robot, wherein:

[0030] The visual sensing system is responsible for dynamically collecting images of the welding pool during the welding process, and transmitting the collected images to the main control computer through the video line;

[0031] The internal state monitoring port of the double inverter arc welding power supply, the welding current of the wel...

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Abstract

The invention provides an arc welding robot welding monitoring system which is based on visual sensing in the arc welding robot technical field. The invention comprises a welding robot, a robot controller, a visual sensing system, an interface circuit device, a main control computer, and a dual inverter arc welding power source; wherein, the visual sensing system dynamically collects the images of a welding pool and transmits the images to the main control computer which receives the image information which is provided by the visual sensor and achieves the image processing; furthermore, the main control computer adjusts the dual inverter arc welding power source and controls the welding robot through the interface circuit device according to the processing results; the interface circuit device consists of a simulation signal output sub-module, a welding switch and process state detection sub-module and a robot controller general I / O sub-module; the welding robot receives a moving instruction signal which is emitted by the main control computer, and the welding is achieved by moving a welding gun. The invention improves the monitoring capability of the user to the welding process of the arc welding robot, and widens the application range of the robots in the welding automation field.

Description

technical field [0001] The invention relates to a system in the technical field of robots, in particular to a vision sensing-based welding monitoring system for an arc welding robot. Background technique [0002] Welding robots are currently widely used in automobiles, aerospace manufacturing and other fields, and are mainly divided into two categories: spot welding and arc welding. The welding parameters of the existing teaching reproducible robots or offline programming robots are preset according to the working conditions, and lack external information sensing and real-time adjustment functions during the welding process. This type of welding robot has strict requirements on the consistency of working conditions. It lacks "flexibility" during welding and cannot adapt to changes in the welding environment and process. However, in the actual welding process, the operating conditions are constantly changing, such as the assembly gap and misalignment of the welding workpiece...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/095G05B19/418
Inventor 陈华斌李来平林涛马宏波陈善本王磊徐爱杰杨学勤
Owner SHANGHAI JIAO TONG UNIV
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