With the advancement of modern manufacturing technology and the increasing demand for high-precision and high-efficiency machining, five-axis machine tools have been widely applied in aerospace, automotive manufacturing, and other industries. However, high-precision machining also introduces complex challenges in error control, which directly affect product quality and machine tool lifespan. Therefore, the measurement of errors in five-axis machine tools has become an important research topic.
In response to the dual transformation of machine tool digitalization and green manufacturing, most domestic companies integrate value-added digital twin solutions from major European and Japanese industrial control manufacturers. However, developing proprietary value-added features is difficult due to the closed nature of these digital twin platforms.
This study investigates the accuracy of domestic five-axis machine tools, measuring linear axis six degrees of freedom, rotary axis positioning, circular interpolation, spatial diagonal accuracy, and tool-tip synchronous motion. Results indicate most machines meet ISO 10791 standards, with some achieving half the tolerance limits. Rotary axis errors are linked to geometric accuracy, rotary center alignment, and control parameters. Compensation and parameter adjustments are recommended to optimize precision and enhance machining quality.
