Space curve welding seam tracker

Abstract

The invention discloses a space curve welding seam tracker which mainly comprises a tracker outer shell body, two side sealing plates of the tracker outer shell body, longitudinal and transverse proberods, encoders, a probe rod connecting piece, a welding seam tracking guide roller frame and the like. The two longitudinal and transverse probe rods, the two encoders, a probe rod movement limit switch, an indicator lamp and other parts are separately assembled in the tracker outer shell body. A cylindrical rack on each probe rod is engaged with gears of the corresponding encoder, and the extending and contracting linear motion of each probe rod drives the corresponding encoder to rotate in positive and reverse directions; the encoders output positive and reverse pulse signals and transmit the signals to a welding robot controller in real time, and the controller drives a longitudinal numerical control motor and a transverse numerical control motor in time delay according to the pulse signals of the longitudinal encoder and the transverse encoder respectively; and when a welding gun reaches a changed path position, the position of the welding gun is accurately adjusted, so that the welding gun is always kept at the matched and proper position of the tracked welding seam path, and therefore the purpose of longitudinal and transverse combined three-dimensional space curve welding seam tracking is achieved. The space curve welding seam tracker can meet the tracking welding requirements of omni-directional weldments with different shapes and three-dimensional space curves.

Description

technical field [0001] The invention relates to a product matched with industrially produced welding robots, in particular to an automatic tracking welding requirement for welding seams in all-round three-dimensional space that can meet welding seams of different shapes. Background technique [0002] At present, my country's industrial production needs to provide solutions that can realize the automatic tracking welding operation of welding robots with high efficiency, low cost and fast according to the production requirements of customers. [0003] There are some existing seam trackers, most of which use laser or video image trackers, which are complex in structure and high in price, and can track welds with changes in left and right trajectories. During welding tracking, it is easy to be interfered by welding arc light, and it is necessary to take measures to block the welding arc light before it can work normally. These existing seam trackers have the above-mentioned insu...

AI Technical Summary

Problems solved by technology

[0003] There are some weld seam trackers, most of which use laser or video image trackers, have complex structures and high prices, and can track weld seams with changes in left and right trajectories. During welding tracking, it is easy to be interfered by the welding arc light, and measures must be taken to block the welding arc light before it can work normally. These existing seam trackers have the above-mentioned shortcomings in all-round automatic tracking welding.

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