Laser double-sided shot blasting light spot positioning method and system and computer readable storage medium

Abstract

The embodiment of the invention provides a laser double-sided shot blasting light spot positioning method and system. The laser double-sided shot blasting light spot positioning system comprises a first nozzle, a first camera, a second nozzle, a second camera and a graduated scale additionally arranged at a preset distance in front of cameras of the first camera and the second camera. A first light spot picture and a second light spot picture with transverse and longitudinal scale marks are obtained according to the infrared light spots emitted by the first nozzle and the second nozzle; the first light spot picture and the second light spot picture are identified by adopting an image identification technology to respectively obtain deviation values of the central positions of the first light spot picture and the second light spot picture in transverse and longitudinal positions; and the position of the second nozzle is adjusted according to the deviation value. When spraying is carriedout according to the track, a picture is shot every time a light spot is sprayed, then the position of the light spot is calibrated, the secondary positioning adjustment amount is obtained, the position of the first nozzle or the second nozzle is adjusted according to the deviation value, and the problem that the light spot distance deviation is large when laser double-face spraying is carried out is solved.

Description

technical field [0001] The invention relates to the technical field of laser double-sided shot peening spot positioning technology, in particular to a laser double-sided shot peening spot positioning method, system and computer-readable storage medium. Background technique [0002] The laser peening process shoots a high-energy short-pulse laser to the surface of the workpiece to form a transient impact pressure, causing local plastic strain on the surface of the workpiece, forming an uneven residual compressive stress field along the depth direction, and realizing the strengthening or molding of the workpiece. According to different shot peening areas, it is divided into single-side shot peening forming and double-side shot peening forming, and the deviation of spot distance when spraying on both sides is less than 1mm. Single-sided shot peening, only one of the inner and outer surfaces of the part is sprayed, so that the part is bent and formed, such as figure 1 shown. D...

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Problems solved by technology

[0004] In order to ensure that the deviation of the spot distance of the double-sided shot peening is less than 1 mm when processing large workpieces, the embodiments of the present invention provide a laser double-sided shot peening spot positioning method, device, system, and computer-readable storage medium to solve the current problem. There is a problem that the laser peening system has a large deviation of the spot distance when spraying on both sides

When spraying according to the trajectory, without spraying a spot, take a picture, and then calibrate the position of the spot to obtain the secondary positioning adjustment amount, adjust the position of the upper and lower nozzles according to the positioning adjustment amount, and then solve the laser double-sided The problem of large deviation of spot distance when spraying

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