为了稳定可靠地测量切削加工过程中切削力的大小以对机床的加工状态进行监测(TCM),对基于光纤光栅(FBG)传感技术的主轴集成式切削力测量方法进行了研究。基于光纤光栅应变检测原理和Γ形梁的受力分析,提出了4个完全相同并且对称的Γ形梁弹性体结构;通过对切削力传递规律的分析,建立起了主轴集成式切削力测量理论模型并确定FBG的布点;为了验证模型的准确性,搭建了主轴集成式光纤光栅切削力测量实验平台,最后通过实验验证了该方法的可行性和可靠性。 In order to stably and reliably measure the cutting force in cutting process to monitor the machining status of the machine tool (TCM), a method of spindle integrated cutting force measurement based on fiber grating (FBG) sensing technology was studied. Based on the principle of fiber grating strain detection and the force analysis of Γ-shaped beam, four identical and symmetrical Γ-beam elastic structures are proposed. By analyzing the transmission law of cutting force, the theory of integrated cutting force measurement In order to verify the accuracy of the model, an experimental platform for measuring the cutting force of the optical fiber grating with a spindle is built. Finally, the feasibility and reliability of the method are verified by experiments.