Magneto-electricity induction-type welding line tracking device

Abstract

The invention relates to the field of welding, and discloses a magneto-electricity induction-type welding line tracking device, aiming at providing a welding line tracking device which reflects the position variation of a welding line accurately. The magneto-electricity induction-type welding line tracking device comprises a detection part, an induction part and a micro processor, which are sequentially connected. The magneto-electricity induction-type welding line tracking device provided by the invention is high in tracking accuracy, low in distortion degree and high in signal anti-interference capability according to a magneto-electricity induction principle, can set a tracking mode to track the welding line automatically, and timely rectify the position deviation of a welding gun relatively to the welding line so as to guarantee that the welding gun is aligned at the welding line for performing uninterrupted automatic welding operation, improve the welding productive efficiency, and lower the welding production cost.

Description

technical field [0001] The invention relates to the field of welding, in particular to a magnetic induction welding seam tracker. Background technique [0002] Seam trackers in the prior art include contact seam trackers and non-contact seam trackers; [0003] Contact seam trackers generally use photoelectric sensing elements as the sensor for weld position detection, which mainly have the following problems and shortcomings: [0004] The photoelectric device is a photoelectric switch, the switch signal is inaccurate in representing the position of the weld seam, the precision is poor, and it is prone to oscillation; the photoelectric device is a photoresistor or a photoelectric transceiver, and its output analog signal is often poor in linearity and cannot accurately reflect the welding seam. The precise position of the photoelectric device is sensitive to ambient light, and the slow radiation is strong, so it needs to be installed in a closed manner, which affects the acc...

AI Technical Summary

Problems solved by technology

[0004] The photoelectric device is a photoelectric switch, the switch signal is inaccurate in representing the position of the weld seam, the precision is poor, and it is prone to oscillation; the photoelectric device is a photoresistor or a photoelectric transceiver, and its output analog signal is often poor in linearity and cannot accurately reflect the welding seam. The precise position of the photoelectric device is sensitive to ambient light, and the slow radiation is strong, so it needs to be installed in a closed manner, which affects the accuracy of the detection signal;

[0005] Using a photoresistor or a photoelectric transceiver as a detection element requires installing a light-emitting tube that must provide power on the sensor probe. Since the probe is often in an active state, the power line is easy to pull and break the circuit, burying hidden troubles for the probe;

[0006] The non-contact seam tracker is illustrated by taking the laser seam tracker as an example. The tracking accuracy is high, but the price is high, which can only be afforded by high-end users, and cannot fully meet the requirements of most low-end users.

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