The early 21st century, machinery manufacturing industry is characterized by the development of modern high-tech utilization, the trend is four modernizations: the flexible, agile, intelligent, and information technology. Is no longer in the 20th century, 20 to 40 years developed a mechanical discipline its success - and other mechanical cam-based, using special tools, fixtures, cutting tools, measuring the composition of the flow-type production line - rigid automation. The disadvantage is that rigid automation seriously affect the upgrading of products and impede the adoption of high-tech products uncompetitive in the international market. At present, China's machinery manufacturing industry, a number of state-owned enterprises are losing money,
