In view of the technical problems of poor stability, low machining accuracy, marks on the tooth surfaces of workpieces and others, and focusing attention on a high speed dry cutting CNC spiral bevel gear milling machines the machine was thoroughly investigated. The study shows that the milling force is the important characterization of the tool running states and machining quality parameters. An indirect scheme was put forward, based on the actual working conditions of national high speed dry cutting CNC spiral bevel gear cutting machines. In the scheme, the milling force was reflected by monitoring the motor currents of the tool spindle and workpiece spindle. The spindle system of the machine tool was analyzed, aiming at building a model to express the relation between the tool spindle motor current and the milling force. The tool spindle system kinematic model was established, the motor current was monitored by using the double spindle’s torque measurement method, and then a time-frequency analysis was carried out on the current signals. Some mathematical methods were applied to process the data. All the measures were quoted to realize a final purpose, that is to calibrate the undefined parameters of the kinematic model of the cutting spindle system and accomplish the model for the tool spindle motor current and the milling force. The milling force can be monitored by this model in real-time. The results can provide data support for the optimum design of machine tool structures and the improvement of technological parameters.
王志永,杜伟涛. 基于主轴系统电机电流信号监测铣削力的研究[J]. 振动与冲击, 2018, 37(1): 259-264.
WANG Zhiyong,DU Weitao . Monitoring of the milling force based on the current signals of spindle drive motors. JOURNAL OF VIBRATION AND SHOCK, 2018, 37(1): 259-264.
[1] 贾新杰. 弧齿锥齿轮铣齿机切削力及切削参数优化研究[D]. 2014(5),
JIA Xinjie. Research of Cutting Force and Cutting Parameters Optimization for Spiral bevel Gear Using CNC Machine Tool[D]. 2014(5).
[2] 高尚晗, 孟光. 机床主轴系统动力学特性研究进展[J]. 振动与冲击, 2007, 26(6):103-187.
GAO Shanghan, MENG Guang. Advances in Research on Dynamic Characteristics of Machine Tool Spindle[J]. Journal of Vibration and Shock, 2007, 26(6):103-87.
[3] JEONG Y-H, CHO D-W. Estimating cutting force from rotating and stationary feed motor currents on a milling machine[J]. International Journal of Machine Tools and Manufacture, 2002, 42(14):1559-1566.
[4] J.HEIKKALA. Determining of cutting-force components in face milling[J]. Journal of Materials Processing Technology, 1995,52(1):1-8.
[5] YANG M-Y, LEE T-M. Hybrid adaptive control based on the characteristics of CNC end milling[J]. International Journal of Machine Tools and Manufacture, 2002, 42(4):489-499.
[6] 李全宝, 赵兴方, 王亚琪, 等. 基于主轴电流信号的铣削力监测方法研究[J]. 机械研究与应用, 2015, 138(28):37-39.
LI Baoquan, ZHAO Xingfang, WANG Yaqi, et al. Research on Milling Force Supervisory Method Based on Spindle Current Signal[J]. Mechanical Research & Application, 2015,138(28):37-39.
[7] 贾新杰, 邓效忠, 苏建新. 成形法加工螺旋锥齿轮铣削力模型[J]. 农业机械学报, 2012(12), 43(12):268-272.
JIA Xinjie, DENG Xiaozhong, SU Jianxin. Milling Force Model of Spiral Taper Gear Using From Milling[J]. Transactions of the Chinese Society for Agricultural Machinery, 2012(12), 43(12):268-272.
[8] 张捷, 李海洲, 蔡飞, 等. 铣削过程中基于伺服电流信号的切削力监测[J]. 机床与液压, 2011(11), 39(19):1-3.
ZHANG Jie, LI Haizhou, CAI Fei, et al. Cutting Force Monitoring Based on Feed Motor Current on a Milling Progress[J]. Mechine Tool & Hydraulics, 2011(11), 39(19):1-3.
[9] 毛新勇, 刘红奇, 李斌. 主轴电流信号中铣削力成份的时频分析及提取方法研究[J]. 中国科学E辑:技术科学, 2009, 52(10): 1824-1827.
Mao X Y, Liu H Q, Li B. Time-frequency analysis and detecting methodresearch on milling force token signal in spindle current signal. Sci China Ser E-Tech Sci, 2009, 52(10): 1824―1827.
[10] 李斌, 张琛, 刘红奇. 基于主轴电流的铣削力间接测量方法研究[J]. 华中科技大学学报(自然科学版), 2008(3), 36(3):5-8.
LI Bin, ZHANG Chen, LIU Hongqi. Indirect measurement of the milling forces based on spindle motor current[J]. J.Huazhong Univ. of Sci.&Tech. (Natural Science Edition), 2008(3), 36(3):5-8.
[11] 李斌, 贾瑜, 吴波. 伺服电流—铣削力关系间接建模的新方法[J]. 华中理工大学学报, 2000(2), 28(2):51-53.
LI Bin, JIA Yu, WU Bo. A New Method for Indirect Modeling of Relation between Current and Milling Force in an NC System[J]. J.Huazhong Univ. of Sci.&Tech. 2000(2), 28(2):51-53.
[12] 张德峰. Matlab小波分析[M]. 第2版. 北京: 机械工业出版社, 2011(12):223-283.
[13] 王伯雄. 测试技术基础[M]. 清华大学出版社,2003(5):403-417.