Five-axis linkage is a numerical control term. Linkage means that each axis of CNC machine tool reaches a certain set point at a certain speed at the same time. Five-axis linkage means that all five axes can be used. Five-axis CNC machine tool is a high-tech and high-precision machine tool specially used for machining complex surfaces. This machine tool system has a decisive influence on a country's aviation, aerospace, military, scientific research, precision instruments, high-precision medical equipment and other industries. Equipment manufacturing industry is the cornerstone of a country's industry, which provides an important means for the development of new technologies and new products and modern industrial production, and is an indispensable strategic industry. Even developed industrialized countries attach great importance to it.
Five-axis machining means that there are at least five coordinate axes (three linear coordinates and two rotating coordinates) on a machine tool, which can be processed in coordination with movement under the control of a computer numerical control (CNC) system.