一种机加工数控制造参数的自适应优化控制方法

By analyzing the CNC program trajectory and reconstructing the physical cutting torque signal during CNC machining, the cutting edge asymmetry index and asynchronous harmonic distortion rate are calculated, enabling real-time monitoring of tool status and adaptive optimization of parameters. This solves the problems of inaccurate cutting status identification and untimely chatter suppression in existing technologies, thereby improving machining quality.

CN122411089APending Publication Date: 2026-07-17JIANGXI CHANGSHUN AVIATION EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGXI CHANGSHUN AVIATION EQUIPMENT CO LTD
Filing Date
2026-06-17
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing CNC machining, the real-time monitoring of cutting conditions and the dynamic adjustment of machining parameters suffer from frequency ambiguity and energy dispersion, which leads to a decrease in the accuracy of tool condition identification. Furthermore, the parameter optimization control strategy fails to effectively suppress machining chatter and secondary damage.

Method used

By analyzing the CNC program trajectory, combining the tool radius parameters and the blank boundary model, the theoretical cutting angle domain range is calculated, the physical cutting torque signal is reconstructed and mapped to the angle domain torque function, the cutting edge asymmetry index and asynchronous harmonic distortion rate are calculated, and the CNC parameters are adaptively adjusted to achieve spatiotemporal phase alignment, taking into account the electrical response delay of the electromechanical system.

Benefits of technology

It improves the reliability of cutting condition monitoring data, accurately separates cutting load energy, eliminates control delay misalignment, effectively suppresses machining chatter, and avoids cutting surface damage caused by parameter adjustment lag.

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Abstract

本发明涉及数控加工技术领域,公开了一种机加工数控制造参数的自适应优化控制方法,该方法通过解析数控程序轨迹生成理论切削角域区间;基于主轴伺服驱动器重构物理切削转矩信号并映射为角域转矩函数,利用实际径向切入角与实际径向切出角校准理论切削角域区间,并生成有效角域切削转矩信号。基于该有效角域切削转矩信号生成切削刃不对称指数,并计算非同步谐波畸变率,最终依据上述指标,结合电气响应滞后时间与刀具空间到达时间,执行时空相位对齐的数控参数自适应调整。本发明排除主轴转速波动的干扰,分离同步切削与非同步振动能量,避免控制延迟导致的加工点位错位,实现制造参数的闭环自适应优化。
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