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
- Optics and Precision Engineering
- Vol. 30, Issue 12, 1440 (2022)
Fig. 1. Main structure 3D model of VM-850L machining center
Fig. 2. Schematic diagram of each section of spindle
Fig. 3. Cloud diagram of temperature field distribution at different rotational speed
Fig. 4. Steady-state temperature field recorded by thermal imager
Fig. 5. Cloud diagram of thermal displacement distribution at each rotational speed
Fig. 6. Test instrument on test platform
Fig. 7. Data acquisition principle
Fig. 8. Multi-source heterogeneous information collection test platform
Fig. 9. Schematic diagram of measuring point layout
Fig. 10. Temperature data of each measuring point at different speeds
Fig. 11. Signal of vibration measuring points at different speeds
Fig. 12. Signal of Z -direction displacement at different speeds
Fig. 13. Structure of RBF neural network
Fig. 14. Displacement prediction curve of RBF neural network
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Table 1. Heat flow of each part at different speeds
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Table 2. Heat transfer coefficient of each shaft section at different speeds
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Table 3. Total heat transfer coefficient on each face of headstock with air
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Table 4. Location description of measuring points
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Table 5. Comparative analysis results of Z - direction thermal deformation of spindle at different speeds
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Table 6. Model prediction performance evaluation
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