21世纪机械制造业的发展总趋势为“四化” :柔性化、灵捷化、智能化和信息化。(1)柔性化。使工艺装备与工艺路线能适应于生产各种产品的需要 ,能适用于迅速更换工艺、更换产品的需要。(2 )灵捷化。使生产推向市场准备时间缩为最短 ,使机械制造厂机制能灵活转向。(3)智能化。柔 The general trend of machinery manufacturing in the 21st century is “four modernizations”: flexibility, intelligence, intelligence and informationization. (1) Flexible. The process equipment and process line can adapt to the needs of the production of various products can be applied to the rapid replacement process, the need to replace the product. (2) Gesture. To reduce production to market preparation time to the shortest, so that machinery manufacturers can flexibly steering mechanism. (3) intelligent. soft