摘要
为了提高应变式切削力测试装置的动态性能,建立了测试装置的动力学方程,利用有限元软件分析了敏感元件的应变分布规律,并进行了装置的结构设计;开发了包含740B02压电式应变传感器、DH5863电荷放大器和PXI-6254数据采集卡的实验装置,通过测量敏感元件的应变,实现了切削力的动态测试。切削实验结果表明,该测试装置结构简单、动态特性较好,适用于较低转速下的切削力实时测量。
In order to improve the dynamic performance of the cutting force testing device based on strain gauge, the kinetic equation of the test device was established, and the strain distribution of the sensitive components was analyzed using the finite element software. The structural design of the apparatus was carried out. Experimental device which contains the 740B02 type sensor, DH5863 charge amplifier and PXI-6254 data acquisition card was developed to achieve the dynamic measurement of the cutting force by measuring the strain of the sensitive element. The cutting test results show that the test apparatus has simple structure and its dynamic characteristics are suitable for real time measurement of the cutting force.
出处
《机电工程》
CAS
2012年第12期1439-1442,共4页
Journal of Mechanical & Electrical Engineering
关键词
测力仪
切削力测试
有限元分析
应变传感器
dynamometer
cutting force testing
finite element analysis
strain sensor
