Weld joint tracking detection equipment and method

Abstract

The invention discloses weld joint tracking detection equipment, which comprises a structured light generator for generating structured light, a beam expanding lens, a beam shaping device and an imaging device, wherein the beam expanding lens is positioned at the downstream of the structured light generator and is used for expanding beams of the structured light emitted by the structured light generator; the beam shaping device is positioned at the downstream of the beam expanding lens and is used for shaping the expanded beams to form surface structured light with preset shapes, so that light spots of preset shapes are formed on the weld joints; and the imaging device is used for imaging the light spots of the preset shapes on the weld joints. In the weld joint tracking detection equipment, the butt-jointed weld joints are detected and tracked by adopting the light spots imaged by the surface structured light, and narrow weld joints of which the width is less than 1 millimeter can betracked. The invention also provides a weld joint tracking detection method, which adopts the weld joint tracking detection equipment.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a seam tracking detection device. Background technique [0002] In the field of automatic welding, since the operator is not suitable to enter the welding work area, it is impossible to closely monitor the welding process in real time and make necessary adjustments and controls. Changes in factors such as dimensional errors and position deviations and workpiece heating deformation will cause the position of the joint to deviate from the predetermined path, which will lead to a decrease in welding quality or even failure. Therefore, accurate seam tracking is the key to ensure welding quality. [0003] In the prior art, the line structured light seam tracking and detection technology has been widely used, but the line structured light seam tracking and detection is only suitable for conventional types of seam tracking with a large width. For butt welds or welds with a small wid...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, line structured light seam tracking and detection technology has been widely used, but line structured light seam tracking and detection is only suitable for conventional types of seam tracking with large width

For butt welds or welds with a small width, such as welds with a width of less than 1mm, it is difficult to track and detect the position of the weld due to the width limitation of the line structured light

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