In the advanced manufacturing technology field, Machining plays a fundamental role, which is also the most active part of manufacturing process. Its basic goal is to ensure product quality on the condition of low cost and high productivity. At present in china, about 10%~15% of total value in industry output are lost due to the quality problem of the products,such as waste, rejects, rework products and so on. While the actual cutting time only takes 30%, so much time and energy are wasted on parts clamping,...