Automatic punching control method and system for flexible circuit board

By acquiring Gerber files and image data, determining the initial positioning point and correcting errors, the problem of coordinate offset caused by material deformation during the drilling process of flexible circuit boards was solved, achieving high-precision hole positioning and dynamic compensation, and improving processing quality and yield.

CN121908470BActive Publication Date: 2026-06-05JIANGSU K TECH PRECISION TECH +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGSU K TECH PRECISION TECH
Filing Date
2026-03-25
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

In the existing technology for drilling holes in flexible printed circuit boards (FPCs), the soft and easily deformable nature of the FPC material causes a misalignment between the pre-programmed coordinates and the actual position of the material. The lack of real-time tracking and compensation capabilities results in batch alignment differences, affecting processing quality and yield.

Method used

By acquiring Gerber files and image data of flexible circuit boards, the initial positioning point is determined, local and global errors are analyzed, coordinate correction is performed using error correction values, and dynamic compensation is performed by combining image data and Gerber files to achieve precise hole positioning.

Benefits of technology

It improves the accuracy of drilling in flexible circuit boards, reduces the accumulation of batch errors, and ensures the reliability of hole positioning and circuit reliability.

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Abstract

The present application relates to the technical field of circuit board processing, in particular to a kind of automatic control method and system for punching flexible circuit board.The method determines initial positioning point by preliminary analysis of image data through edge saliency analysis, establishes the association of physical FPC and ideal design coordinates, determines the position of more accurate initial hole position, for the second hole position, combined with initial positioning point and initial hole position quantitative deformation deviation, through the influence proportion of global error and local error, weight balance correction is carried out, and error correction value is obtained to dynamically compensate and correct hole position.The present application corrects error by balancing deviation weight from direction and distance through quantifying overall and local deformation, carries out continuous punching tracking dynamic correction, reduces batch error accumulation, and improves the accuracy of punching position in real time.
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