Optics and Precision Engineering, Volume. 30, Issue 12, 1440(2022)
Multi-source heterogeneous information acquiring test experiment and platform construction for CNC machine tool
Figures & Tables(20)
Fig. 3. Cloud diagram of temperature field distribution at different rotational speed
Fig. 5. Cloud diagram of thermal displacement distribution at each rotational speed
Fig. 8. Multi-source heterogeneous information collection test platform
Fig. 10. Temperature data of each measuring point at different speeds
Table 1. Heat flow of each part at different speeds
View tableView in ArticleTable 1. Heat flow of each part at different speeds
转速/
（r·min-1）
电机功率/kW 单列
轴承1/W
单列
轴承2/W
2 000 7.5 27.052 6 27.052 6 3 000 7.5 52.405 1 52.405 1 4 000 7.5 83.948 0 83.948 0
Table 2. Heat transfer coefficient of each shaft section at different speeds
View tableView in ArticleTable 2. Heat transfer coefficient of each shaft section at different speeds
转速/
（r·min-1）
α/（W·m-2·K-1） D1 D2 D3 D4 D5 2000 43.9 46.3 50.8 62.1 56.2 3000 60.7 64.0 70.2 85.9 77.8 4000 76.5 80.6 88.4 108.1 97.9
Table 3. Total heat transfer coefficient on each face of headstock with air
View tableView in ArticleTable 3. Total heat transfer coefficient on each face of headstock with air
面位置 α/（W·m-2·K-1） 顶面 9.855 侧面 9.310 底面 7.303
Table 4. Location description of measuring points
View tableView in ArticleTable 4. Location description of measuring points
传感器类型 测点位置 测点对应代号 温度传感器 主轴侧面 T1 主轴侧面 T2 主轴侧面 T3 法兰底面 T4 主轴箱正面 T5 主轴箱内部 T6 主轴箱侧面 T7 主轴箱内部 T8 环境温度 T9 加速度传感器 工作台 A1 主轴箱侧面 A2 主轴正面 A3 主轴箱正面 A4 主轴箱正面 A5 工作台 A6 主轴箱正面 A7 主轴箱侧面 A8 位移传感器 检验棒X方向 X1 检验棒X方向 X2 检验棒Y方向 Y1 检验棒Y方向 Y2 检验棒Z方向 Z
Table 5. Comparative analysis results of
Z - direction thermal deformation of spindle at different speedsView tableView in ArticleTable 5. Comparative analysis results of
Z - direction thermal deformation of spindle at different speeds转速/
（r·min-1）
仿真/μm 试验/μm 相对误差/% 2 000 11.330 12.250 7.51 3 000 12.286 11.565 6.23 4 000 13.490 13.065 3.25
Table 6. Model prediction performance evaluation
View tableView in ArticleTable 6. Model prediction performance evaluation
转速/（r·min-1） MAE/μm RMSE/μm R2 2 000 0.683 0.890 0.936 7 3 000 0.602 0.632 0.956 7 4 000 0.483 0.726 0.940 9
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Xiaolei DENG, Yushen CHEN, Shupeng GUO, Jiacong ZHENG, Xiaobo SHENG. Multi-source heterogeneous information acquiring test experiment and platform construction for CNC machine tool[J]. Optics and Precision Engineering, 2022, 30(12): 1440
Paper Information
Category: Micro/Nano Technology and Fine Mechanics
Received: Mar. 16, 2022
Accepted: --
Published Online: Jul. 5, 2022
The Author Email: DENG Xiaolei (dxl@zju.edu.cn)
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