Weld seam tracking visual sensor

Abstract

The invention discloses a weld seam tracking visual sensor, which comprises a laser emitting module used for emitting structured light to a workpiece along a plane intersecting with a weld seam of the workpiece so as to form a laser weld seam image on the plane intersecting with the weld seam of the workpiece; an image acquisition module used for acquiring the laser weld seam image; an optical reflection module used for accurately transmitting the laser weld seam image into the image acquisition module by utilizing a light reflection effect; an image processing module used for processing the laser weld seam image acquired by the image acquisition module; a sensor shell, wherein a laser through hole and an image acquisition hole are arranged on a front end plate of the sensor shell; transparent dustproof glass which is arranged at the front end of the sensor shell and completely covers the laser through hole and the image acquisition hole; a glass replacing module which is used for rapidly replacing the transparent dustproof glass; a semiconductor temperature control system which is used for detecting the temperature and controlling the temperature; and an air-blowing dustproof module used for spraying air to the transparent dustproof glass to form positive pressure for dust prevention. The weld seam tracking visual sensor provided by the invention has the advantages of easy maintenance, high temperature resistance and strong dustproof capability.

Description

technical field [0001] The invention relates to a visual sensor, in particular to a welding seam tracking visual sensor. Background technique [0002] Welding technology has always been called the tailor of the industry, and it has been widely used in many fields such as automobile manufacturing, aerospace, railway construction and petrochemical industry. The seam tracking vision sensor stands out among many sensors due to its non-contact, high stability and clear and intuitive image, and has become one of the most widely used sensors in the welding field. [0003] Most of the existing seam tracking visual sensors at home and abroad are expensive, and have problems such as poor heat dissipation, poor dustproof ability, and difficult maintenance. Generally, they can only be used in working environments with less smoke and dust and lower temperatures. However, in the actual welding process, there is often more smoke and dust and higher temperature, which makes the existing we...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing seam tracking visual sensors at home and abroad are expensive, and have problems such as poor heat dissipation, poor dustproof ability, and difficult maintenance. Generally, they can only be used in working environments with less smoke and dust and lower temperatures.

However, in the actual welding process, there is often more smoke and dust and higher temperature, which makes the existing welding seam tracking visual sensor unusable

At the same time, due to the poor modularity of the existing seam tracking vision sensor, it is inconvenient to operate and difficult to repair when there is a problem that needs to be repaired

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