A multi-laser head intelligent laser cleaning method and device

Abstract

The invention discloses an intelligent laser cleaning method with multiple laser heads. The steps include: S1: acquiring the three-dimensional shape of the workpiece to be cleaned and determining the area to be cleaned; S2: determining each laser head according to the three-dimensional shape of the workpiece to be cleaned and the area to be cleaned S3: Select the process parameters of each laser head, each laser head moves along the motion track and emits laser light to clean the workpiece surface; S4: Collect the image of the workpiece surface after cleaning in real time, and use the image processing algorithm to clean the workpiece surface If the condition is detected, if the preset requirement is not met, return to step S3 until the detection result meets the preset requirement. The invention can realize the mutual cooperation between multiple laser heads to clean the dirt on the workpiece surface, is especially suitable for cleaning surfaces with large format and complex shape and structure, and has the advantages of high cleaning efficiency and good cleaning quality.

Description

technical field [0001] The invention relates to the technical field of laser cleaning, in particular to an intelligent laser cleaning method and device with multiple laser heads. Background technique [0002] Laser cleaning is a new green cleaning technology developed in the last 20 years. This technology uses high-frequency pulsed laser to act on the surface of the workpiece to be cleaned, so that the dirt is separated from the surface of the workpiece by gasification, burning, peeling, etc., and finally achieves purpose of cleaning. In the laser cleaning process, there is no chemical pollution, no noise pollution, and no air pollution, which is a typical green manufacturing technology. Laser cleaning equipment uses high-frequency pulsed fiber laser as the light source, so the equipment is maintenance-free and has no consumables. From the perspective of the entire life cycle of the product, it has high economic benefits. This technology has been used in industrial rust rem...

AI Technical Summary

Problems solved by technology

Therefore, when cleaning a large-format or complex-shaped cleaning surface, the cleaning efficiency of a single laser head is low, and the cleaning quality is poor, which cannot reach the level of industrial-grade production applications.

In addition, it is difficult for a single laser head to clean a thick rust layer with a thickness greater than 0.2 mm. It is difficult to remove it at one time. It requires repeated laser scanning and multiple scanning of the cleaning surface to completely clean it, and the cleaning efficiency is greatly reduced.

[0004] At present, the use of multiple laser heads is an important method to improve the efficiency of laser cleaning. For example, the patent "A Large Format Laser Cleaning Device (Application No.: 201811655475.9)" proposes a cleaning device with four laser heads, which improves the efficiency of laser cleaning, but lacks intelligence. Manage each laser head, it is difficult to maximize the role of multiple laser heads

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