Line laser marking collaborative control method, device and equipment and storage medium

By dynamically correcting the marking path using synchronous pulse signals and visual positioning technology, the problem of marking deviation caused by workpiece position fluctuations was solved, achieving efficient marking control and ensuring continuous operation of the production line and product quality.

CN121733019BActive Publication Date: 2026-06-30GUANGDONG MINGYU TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGDONG MINGYU TECH CO LTD
Filing Date
2025-12-04
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing marking control methods are difficult to achieve precise matching of workpiece positions under high-speed continuous production conditions, resulting in insufficient marking accuracy and stability, which affects production efficiency.

Method used

By acquiring a synchronous pulse signal synchronized with the production line displacement, the real-time position offset of the workpiece is identified, the marking path is dynamically corrected, and the marking timing and workpiece position are precisely matched by pulse counting and threshold comparison, and online quality judgment and rejection of unqualified workpieces are performed.

Benefits of technology

It significantly improves the accuracy and stability of marking position during movement, ensures consistent product quality, enhances overall production efficiency, and achieves a balance between precision and efficiency.

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Abstract

This invention relates to a method, apparatus, equipment, and storage medium for collaborative control of laser marking on production lines. The method includes acquiring a synchronization pulse signal synchronized with the production line displacement; triggering an image acquisition device to capture a motion image of the target workpiece using the synchronization pulse signal; identifying and calculating the positional offset between the real-time position of the workpiece and a preset marking reference point in the motion image; performing synchronous translation transformation on all coordinate points in a pre-stored theoretical marking path based on the positional offset; counting pulses based on the synchronization pulse signal; and comparing the obtained real-time pulse count value with a preset marking trigger threshold. This invention, based on real-time visual positioning and dynamic correction of the marking path, effectively overcomes marking deviations caused by workpiece position fluctuations, improving the stability of the marking process. Through online judgment and closed-loop control of marking quality, automatic identification and rejection of defective workpieces are achieved, ensuring the consistency of the final product quality.
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