Laser marking method based on CCD navigation positioning

Abstract

The invention discloses a laser marking method based on CCD navigation positioning. The laser marking method comprises the steps that (1) a CCD camera and an object carrying platform are corrected, and therefore a pixel coordinate of the CCD camera is related to a coordinate system of the object carrying platform; (2) the CCD camera and an oscillating mirror are corrected, and therefore the position of the CCD camera is related to the position of the oscillating mirror; and (3) navigation of a marking sample positioning point and a marking position point is carried out, and a positioning marking information pattern of a marking sample is generated. The CCD camera, the object carrying platform and the oscillating mirror are corrected, and therefore the pixel coordinate of the CCD camera and the coordinate system of the object carrying platform are related, and the CCD camera and the position of the oscillating mirror are related; then navigation of the marking sample positioning point and the marking position point is carried out, the positioning marking information pattern of the marking sample is generated, and therefore the positioning marking information pattern achieves accurate positioning marking under the condition that no sample CAD pattern positioning marking information exist due to the similar sample positioning marking information CAD patterns, and the using scope of an existing CAD pattern machine is improved.

Description

technical field [0001] The invention relates to the technical field of laser marking, in particular to a laser marking method based on CCD navigation and positioning. Background technique [0002] Laser marking is one of the largest application fields of laser processing. Laser marking is a kind of chemical reaction that uses high-energy-density laser to partially irradiate the workpiece to vaporize the surface material or undergo a color change, thereby leaving a permanent mark. method. Laser marking can print various characters, symbols and patterns, etc., which has special significance for product anti-counterfeiting and product traceability. [0003] With the rapid development of domestic industry 2020, foreign industry 4.0 and the Internet of Things, factories pay more and more attention to product traceability and management, such as raw material procurement, product process and technology, product batches, manufacturers, production dates, product destinations and oth...

AI Technical Summary

Problems solved by technology

The general CCD positioning marking needs to be based on the product CAD drawing, but in actual production, customers often do not have the product CAD drawing, such as the PCB board industry, which will greatly limit the application range of laser marking

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