Work

Simulation study on the influence of the structure of the cooling water jacket of the motorized spindle on thermal characteristics

Year: 2025

Type: article

Abstract: As a core component of high-end CNC machine tools, the thermal characteristics of motorized spindles directly affect the machining accuracy and operational stability of the machine tool. To improve the thermal control performance of motorized spindles under high rotational speed, this paper carries out a systematic study for the optimization of the cooling water jacket structure. The internal heat generation model of the motorized spindle is constructed and verified with the temperature measurement, and then the thermal characteristics of four typical cooling water jacket structures, U-Type, DH-Type, SH-Type and T-Type, are compared with each other based on the CFD simulation method. The results show that the T-Type is excellent in temperature control capability and uniformity. On this basis, the key parameters of the T-Type structure are further optimized, and the effects of the parameters on the flow characteristics and heat transfer efficiency are examined. It was found that vortex scale size, formation of counter-rotating vortex pairs and stagnation zone affect cooling efficiency and temperature uniformity.

Source: Case Studies in Thermal Engineering

DOI: 10.1016/j.csite.2025.106940

Authors: Ruibin Liu, Fuzeng Wang, Dongju He, Feng Jiang

Institution: Huaqiao University

Language: English

Topic: Heat Transfer and Optimization

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,620

Funders: National Natural Science Foundation of China, Natural Science Foundation of Fujian Province