A study on the thermodynamic characteristics of a mechanical A/C swing angle milling head

Several studies have evaluated the thermal error modeling and structural characteristics of the swing angle milling head; however, few studies have reported the thermodynamic characteristics of the swing angle milling head. Therefore, based on the thermodynamic theory, the thermodynamic characteristics of the mechanical A/C swing angle milling head of the five axis CNC gantry milling machine are evaluated, and the relevant heating calculation results are obtained. The temperature field distribution and thermodynamic characteristics of the swing angle milling head were simulated and analyzed by using ANSYS Workbench finite element software. In addition, the accuracy and rationality of the finite element simulation results of this study are verified based on the experimental conclusions of other relevant scholars that the maximum temperature of the gear is also mainly distributed near the pitch line of the tooth surface. The research results indicate that the maximum heat generation area inside the swing angle milling head is mainly concentrated on the pitch line of the bevel gear tooth surface of the main spindle execution component, with a maximum temperature of 43.559°C. The maximum thermal deformation is located at the tip of the swing angle milling head, with a maximum thermal deformation of 1.8353 × 10−5 m, this study can provide important theoretical reference and data support for the structural optimization and thermal deformation control of subsequent swing angle milling heads.