局部空间不依赖母性精度的内尺寸在机高速精密测量技术研究

本项目面向我国高端装备制造领域对大尺寸复杂结构件在机精密测量技术的迫切需求，针对复杂内尺寸精密测量缺少有效方法以及高速在机测量难以实现的难题和挑战，探索局部空间不依赖母性精度的在机高速精密测量新原理，提出基于激光射线簇的内尺寸测量新方法，揭示几何约束、物理约束等耦合作用下的多源激光动态测量机制，研究内尺寸几何特征精密提取与高速解析算法，实现复杂内尺寸的在机高速高精度测量，突破传统测量方法在现场高速精密测量应用中的局限性，为大尺寸复杂结构件的精密制造与在机测量提供理论基础与技术支撑。

Facing the urgent demand of on-machine precision measurement technology for large-sized complex structural parts in the field of high-end equipment manufacturing in China, this project aims at the problems and challenges of the lack of effective methods for the precise measurement of complex internal dimensions and the difficulty of high-speed on-machine measurement, and explores the new principle of high speed precise measurement in machine which does not depend on the maternal accuracy in local space. A new method for measuring the inner size of laser ray cluster is proposed, which reveals the dynamic measurement mechanism of multi-source laser under the coupling of geometric and physical constraints. We research the precise extraction and high speed analytical algorithm of geometric features of internal dimensions to realize high speed and high precision measurement of complex internal dimensions. The research results break through the limitations of traditional measurement methods in the field of high-speed precision measurement applications and provide theoretical basis and technical support for precision manufacturing and on-machine measurement of large-size complex structural parts.