Laser double-sided shot peening spot positioning method, system and computer-readable storage medium

Abstract

An embodiment of the present invention provides a laser double-sided shot peening spot positioning method and system, including a first nozzle, a first camera, a second nozzle, a second camera, and a preset distance in front of the cameras of the first camera and the second camera Add a scale at the place; according to the infrared spots emitted by the first nozzle and the second nozzle, the first spot picture and the second spot picture with horizontal and vertical scale lines are obtained; and then image recognition technology is used to analyze the first spot picture and the second The two spot pictures are identified, and the deviations of the center positions of the first spot picture and the second spot picture in the horizontal and vertical positions are respectively obtained; and the position of the second nozzle is adjusted according to the deviation. When spraying according to the trajectory, each time a spot is sprayed, a picture is taken, and then the position of the spot is calibrated to obtain the secondary positioning adjustment amount, and the position of the first or second nozzle is adjusted according to the deviation to solve the laser double-sided problem. For the problem of large deviation of spot distance when spraying.

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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