一种基于车间制造的机械零部件角度无损精密测量方法

By using CCD or industrial cameras, telecentric lenses, and deep learning models in the mechanical parts measurement system, combined with shock-absorbing brackets and optical shielding devices, the problems of unstable image acquisition and low calibration accuracy of traditional angle measurement devices in workshop environments have been solved, achieving high-precision and stable angle measurement.

CN121953875BActive Publication Date: 2026-07-17CHENYANG TONGYI PETROCHEMICAL EQUIPMENT MANUFACTURING TECHNOLOGY CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHENYANG TONGYI PETROCHEMICAL EQUIPMENT MANUFACTURING TECHNOLOGY CO LTD
Filing Date
2026-04-01
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional angle measuring devices for mechanical parts suffer from insufficient image acquisition stability, low calibration accuracy, and drifting measurement results due to uneven light sources and vibration interference in workshop environments.

Method used

The system employs a combination of a CCD or industrial camera with a telecentric lens, a uniform light source, and a high-precision calibration plate, along with a shock-absorbing bracket and an optical shielding device. It utilizes a trained deep learning model to detect calibration reference points, performs multi-image calibration, and adaptively updates calibration parameters based on environmental information to achieve sub-pixel-level feature point localization and multi-point fitting.

Benefits of technology

In a workshop environment, high-precision, stable, and consistent measurement of part angles was achieved, improving image acquisition stability and calibration accuracy, and reducing measurement result drift.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121953875B_ABST
    Figure CN121953875B_ABST
Patent Text Reader

Abstract

本发明涉及机械零部件测量技术领域,尤其涉及一种基于车间制造的机械零部件角度无损精密测量方法,包括:配置CCD或工业相机,并与远心镜头、均匀光源及高精度标定板组合形成测量系统,通过夹具固定零件与标定板,并设置减震支架及光学遮挡装置;采用训练好的深度学习模型在所述标定板图像中检测标定基准点,并基于所述检测结果执行多图像标定,以计算相机内参数和外参数并建立标定模型;对所述深度学习模型检测的标定基准点实施亚像素角点定位处理以获得亚像素级坐标。本发明中,通过配置CCD或工业相机,从而改善了传统的角度测量装置大都采用手动光源和简易支架固定,由于光源不均匀和震动干扰,从而造成图像采集稳定性不足的问题。
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • CN101655361A

  • CN111612853A