The series of machine tools are used for machining various types of precise components, such as various fundamental large-size workpieces, plate workpieces, disc workpieces, housing workpieces, and molds. The product is configured with an automated right-angle milling head and is able to complete the machining of various procedures, including milling, boring, drilling,expanding, reaming, and rigid tapping of planes other than the installation bottom plane after one-time fixture.