Also known as CNC lathe, CNC lathe CNC lathe processing the CNC parts processing. The computer numerical control lathe, is the present domestic usage is the largest, the most widely coverage of a CNC machine tool, accounts for about 25% of the total number of nc machine tools. Nc machine tools is a set of mechanical, electrical, hydraulic, pneumatic, microelectronics and information technology for the integration of mechanical and electrical integration products. Is the machinery manufacturing equipment has high accuracy, high efficiency, high automated and high flexibility advantages of machine tools. The technical level of nc machine tool nc machine tools and production in metal cutting machine tools and the percentage of the total ownership is to measure a country's economic development and an important symbol of the overall level of industrial manufacturing. Numerical control lathe numerical control machine tool is one of the main varieties, it occupies very important position in the numerical control machine tool, for decades has been paid attention to by the countries all over the world and got rapid development.