固定式三向铣削测力仪的研究  

Research on Fixed Three-Component Milling Force Sensor

作　　者：赵玉龙[1] 李莹雪 费继友 秦亚飞 李秀源 

机构地区：[1]西安交通大学机械制造系统工程国家重点实验室,西安710049 [2]大连交通大学动车运用与维护工程学院,大连116028

出　　处：《振动．测试与诊断》2017年第4期641-647,共7页Journal of Vibration,Measurement & Diagnosis

基　　金：国家杰出青年科学基金资助项目(51325503)

摘　　要：由于铣刀在铣削过程中切削位置不同,固定型铣削测力仪将产生输出误差。为降低铣削位置变化对传感器输出的影响,研制了一种四竖直敏感梁结构的应变型固定式三维铣削测力仪。研究表明,当铣削位置范围限定时,该测力仪可以将输出信号误差维持在可用范围,并分别进行了静态力测量和动态铣削实验。在静态力测量实验中,在70mm×70mm×15mm工件上,传感器解耦偏差不大于5.58%;在动态切削实验中,使用相同加工参数在不同位置处铣削,传感器测得的铣削力峰峰值最大相差3.73%。对该铣削测力仪的研究为解决竖直方向高刚度的应变型固定式铣削力传感器的解耦问题提供了新的思路和参考。Due to tool cutting position changing during milling process,output error is brought to fixed milling dynamometer.A fixed three components dynamometer with stain gauges bounded on four vertical sensitive beams is proposed to reduce the influence of milling position variation.Within the milling rang limit,the output error of the developed sensor is kept in an acceptable range.Static force applied test and dynamic milling experiment are both implemented.In a static force test with force applied on the 70mm×70mm×15mm workpiece,the maximum decoupling deviation is 5.58%.In milling experiment with identical machining parameters but different milling positions,the differences of peak to peak force values derived from sensor output are not more than 3.73%.The research on the dynamometer provides a new thought and reference to decoupling issues for strain-based fixed milling force sensor with high stiffness in vertical direction.

关 键 词：固定式三向铣削测力仪 应变式传感器 竖直弹性梁 偏心受力 偏心受力解耦 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]