Research on Calibration Technology of Force Measuring Tool Holder System
WU Feng-he1,2, ZHANG Ning1, LI Yuan-xiang1, GUO Bao-su1,2
1. College of Mechanical Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China
2. Hebei Heavy-duty Intelligent Manufacturing Equipment Technology Innovation Center, Qinhuangdao, Hebei 066004, China
Abstract:The force measuring tool holder system can be used to monitor the axial force and torque changes during the cutting process in real time. In order to ensure the accuracy of the measurement data of the designed force measuring tool holder system, a set of calibration auxiliary devices is developed, a static and dynamic calibration experiment platform is built, and the static and dynamic calibration experiments are completed. The static characteristic indexes such as linearity, repeatability and hysteresis of the force measuring tool holder system are determined by the step-by-step loading and unloading method. The dynamic characteristic indexes such as natural frequency, damping ratio and maximum working frequency of the force measuring tool holder system are obtained by the pulse method.Finally, the drilling and milling experiments are carried out, and the results show that the measurement errors of the system in the axial direction and torque direction are less than 2% compared with the Kistler dynamometer, which means that the system can accurately reflect the changes of axial force and torque in the dynamic cutting process.
[1]周济. 智能制造—“中国制造2025”的主攻方向[J]. 中国机械工程. 2015, 26 (17): 2273-2284.
Zhou J. Intelligent Manufacturing—main direction of “Made in China 2025”[J]. China Mechanical Engine-ering, 2015, 26 (17): 2273-2284.
[2] Totis G, Wirtz G, Sortino M, et al. Development of a dynamometer for measuring individual cutting edge forces in face milling[J]. Mechanical Systems and Signal Processing, 2010, 24 (6): 1844-1857.
[3] Suprock C A, Nichols J S. A low cost wireless high bandwidth transmitter for sensor-integrated metal cutting tools and process monitoring[J]. Int. J. Mechatronics and Manufacturing System, 2009, 2 (4): 441-454.
[4] Rizal M, Ghani J A, Nuawi M Z, et al. Development and testing of an integrated rotating dynamometer on tool holder for milling process[J]. Mechanical Systems and Signal Processing, 2015, 52-53: 559-576.
[5] 王宇飞, 任凤章, 张旦闻, 等. 车削测力仪在机标定的标定装置及标定方法[J]. 计量学报, 2015, 36 (6): 603-606.
Wang Y F, Ren F Z, Zhang D W, et al. Calibration device and methods for calibrating turning dynamometer on lathe[J]. Acta Metrologica Sinica, 2015, 36 (6): 603-606.
[6] 付立悦, 宋爱国. 六维力传感器静态标定系统误差分析[J]. 计量学报, 2019, 40 (2): 295-299.
Fu L Y, Song A G. Error Analysis of Six-axis Force /Torque Sensors Static Calibration System[J]. Acta Metrologica Sinica, 2019, 40 (2): 295-299.
[7] 张强, 宋爱国, 刘玉庆, 等. 一种指尖三维力传感器设计[J]. 计量学报, 2018, 39 (1): 52-55.
Zhang Q, Song A G, Liu Y Q, et al. Design of a Three Dimensional Force Sensor[J]. Acta Metrologica Sinica, 2018, 39 (1): 52-55.
[8] Xie Z, Lu Y, Li J. Development and testing of an integrated smart tool holder for four-component cutting force measurement[J]. Mechanical Systems and Signal Processing, 2017, 93: 225-240.
[9] 张乾斌, 陆建山, 谢伟东. 基于离心原理的力传感器动态标定系统辨识与分析[J]. 传感器与微系统, 2019, 38 (4): 37-39.
Zhang Q B, Lu J S, Xie W D. Identification and analysis of dynamic calibrationsystem of force sensor based on centrifugal theory[J]. Transducer and Microsystem Techn-ologies, 2019, 38 (4): 37-39.
[10] 郑红梅, 刘正士, 王勇. 机器人六维腕力传感器标定方法和标定装置的研究[J], 计量学报, 2005, 26 (1): 43-45.
Zheng H M, Liu Z S, Wang Y. Study on the method of dynamic characteristic calibrationof the 6-Aixs wrist force sensor for robot[J]. Acta Metrologica Sinica, 2005, 26 (1): 43-45.
[11] Wu F, Li Y, Guo B, et al. The Design of Force Measuring Tool Holder System Based on Wireless Tran-smission[J]. IEEE Access, 2018, 6: 38556-38566.
[12] ztürk E, Ylldlzll K. A new static calibration meth-odology for strain gage integrated dynamometers[J]. The International Journal of Advanced Manufac-turing Technology, 2017, 91 (5-8): 1823-1838.
[13] 孙宝元, 张贻恭. 压电石英力传感器及动态切削测力仪[M]. 北京: 计量出版社, 1985.