三向切削力实验装置研制

三向切削力测量对理解机械制造、金属切削原理以及机床设计有着重要的指导意义。针对目前市场上切削力测量装置成本高，安装操作复杂以及功能单一等缺点，研发了一种新型三向切削力测量装置，采用应变片测量切削引起的微小变形，通过精心布置的应变片贴片方案将三向切削力引起的力变形转化为电压或电流信号。经过三向电校准和机械校准后，确保三向测力传感器的输出与载荷之间的响应系数相对恒定。开发切削力实验软件，可以提供单因素切削力实验、正交切削力实验以及自由切削力实验研究。该装置已经在国内许多高校中得到了具体应用。

Development of three directional cutting force experimental device

Measurement of three directional cutting force has important guiding significance to the understanding of mechanical manufacturing, metal cutting theory and machine tool design. As the main disadvantages of experimental devices for cutting force measurement in existing markets are their high cost, complex assembly and single-function, a new three directional cutting force experimental device is developed in this study which measures the micro-distortion of strain gauge caused by the desired cutting force. By elaborately arranging the strain gauge, the measured micro-distortion will be transformed into voltage or current signals. By three direction electrical calibration and mechanical calibration, the response coefficients between a directional output of the three directional force sensor and the directional load is determined, thus forming a stable measuring system for cutting force test, and the micro-distortion measured by proposed device and desired cutting force will be obtained. The developed cutting force experimental software can be used for single-factor cutting force experiments, orthogonal cutting force experiments, and free cutting force study. This device now has found wide application in many universities at home.