Simulation analysis model of high-speed motorized spindle structure based on thermal load optimization

被引：14

作者：

Zhaolong, Li ^{[1
,2
]}

Wenming, Zhu ^{[2
]}

Bo, Zhu ^{[2
]}

Baodong, Wang ^{[2
]}

Qinghai, Wang ^{[2
]}

Junming, Du ^{[2
]}

Benchao, Sun ^{[2
]}

机构：

[1] Harbin Univ Sci & Technol, Key Lab Adv Mfg Intelligent Technol, Minist Educ, Harbin 150080, Heilongjiang, Peoples R China

[2] Harbin Univ Sci & Technol, Sch Mech & Power Engn, Harbin 150080, Heilongjiang, Peoples R China

来源：

CASE STUDIES IN THERMAL ENGINEERING | 2023年 / 44卷

基金：

中国国家自然科学基金;

关键词：

High-speed electric spindles; Finite element modeling; Thermal -solid coupling analysis; Bearing thermal analysis; Spindle thermal characteristics; Thermodynamic simulation;

D O I：

10.1016/j.csite.2023.102871

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

High-end CNC machine tools' primary transmission mechanism is a high-speed electric spindle. Thermal displacement of the spindle occurs as a result of heat created inside the spindle during transmission, which has an impact on the machining precision of high-end CNC machine tools. Establishing a high-precision motorized spindle simulation model is crucial because it serves as a foundation for optimizing and testing the motorized spindle's construction and material, adjusting for thermal errors, and estimating its life. The thermal-solid coupling model of the motorized spindle is created by Ansys based on the experimental data of temperature and thermal displacement of the A02 motorized spindle and in accordance with the boundary conditions. The accuracy of front and rear bearings is 93.42% and 90.52%, respectively, when compared to experimental data, and the accuracy of axial thermal displacement is 95.16%. Finally, the motorized spindle is optimized to extend its service life after the thermal displacement, stress, and strain of the bearing are model.

引用

页数：10

共 23 条

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