Steel grating welding seam automatic detection method based on point cloud

Abstract

The invention discloses a point cloud-based steel grating welding seam automatic detection method. The method comprises the following steps of S1, acquiring welding seam data; s2, point cloud downsampling is carried out; s3, segmenting a frame surface point cloud set; s4, segmenting a welding surface point cloud set; s5, determining a frame surface; s6, determining a welding surface and a welding seam starting end; s7, determining a starting welding spot, a middle welding spot, an ending welding spot and a safety spot; and step S8, coordinate transformation. The method has the advantages that the precision is high when the welding seam of the steel grating is detected, the welding seam position and the feature point position are accurately extracted under the interference of strong arc light, splashing, electric arc noise and the like, the anti-interference capability is high, and the identification is accurate.

Description

technical field [0001] The invention belongs to the technical field of weld seam detection, and in particular relates to an automatic detection method for steel grating weld seams based on point clouds. Background technique [0002] Welding technology has become one of the widely used connection methods, mainly used in the fields of aerospace, electronics manufacturing, machinery manufacturing and shipbuilding. Yet the spot environment of welding is very harsh, and the harmful gas that welding torch produces during welding and the dazzling arc light that welding torch produces during welding are very easy to make welders' lives threatened. With the aging of the population, welding workers are decreasing year by year, but welding demand is increasing year by year. Traditional manual welding cannot meet the needs of the current society. [0003] As the development of artificial intelligence industry and electronic manufacturing technology provides new ideas and new technologi...

AI Technical Summary

Problems solved by technology

However, the site environment of welding is very harsh, and the harmful gas produced by the welding torch and the dazzling arc light produced by the welding torch can easily threaten the lives of welders.

With the aging of the population, welding workers are decreasing year by year, but welding demand is increasing year by year. Traditional manual welding cannot meet the needs of the current society.

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