Self-positioning welding line tracking device for boiler tube welding

Abstract

The invention discloses a self-positioning welding welding line tracking device for boiler tube welding. The device is composed of a camera, an arc sensor, a rotating table, a positioning force sensesensor and a welding point position compensating mechanism, wherein a circular plate and a guide rod of the positioning force sense sensor are each provided with a light through hole; when a ceramic pressing piece is pressed to push the guide rod so that the light through hole in the circular plate and the light through hole in the guide rod can be communicated to form a light path, a photoelectric transistor (as a light receiving component) can receive light information of a light emitting diode (as a light emitting source), and therefore a deviation of the positioning rod is sensed, and preliminary positioning is completed by correcting the deviation. For a small deviation obtained after positioning and a deviation caused by installation and size of a convection tube, a swing electric arc is formed through the welding point compensation mechanism for scanning the welding line, according to upper and lower deviation information obtained after scanning, the welding point position can be judged, the position of a welding point is adjusted through a crossed sliding table, the arc swing center is the center of the welding line all the time, and therefore the position of the welding point is precisely positioned and the welding line can be tracked.

Description

technical field [0001] The invention relates to a self-positioning welding seam tracking device for boiler tube welding. technical background [0002] Boilers operate under high temperature and high pressure environment for a long time, so welding has become a key process in boiler manufacturing, and welding quality directly affects the performance of boilers. In recent years, with the continuous improvement of boiler parameters and capacity, the development of boiler manufacturing technology is inseparable from the development of boiler welding technology. Only by continuously improving welding technology to realize boiler welding automation can boiler manufacturing technology be more effective. Development can reduce the manufacturing cost of boilers. At present, the welding of the boiler is still in the manual welding or semi-automatic stage, mainly because the diameter of the boiler drum is small, and there are many pipes such as convection pipes and heat exchange pipes...

AI Technical Summary

Problems solved by technology

The temperature inside the boiler drum is high, and it is difficult to discharge the welding exhaust gas. Working in such an environment for a long time will greatly increase the work fatigue of the workers and even affect their health.

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