中北大学-数控雕铣机总体设计.doc

毕业设计说明书 数控雕铣机总体设计 班 级： 学号： 姓 名： 学 院： 专 业： 指导教师： 2014年 6 月 数控雕铣机总体设计 摘 要 数控雕铣机是典型的机电一体化产品，它的功能复合化，其核心是在一台机床上要完成铣、雕等多种操作工序，弥补了加工中心和数控雕刻机之间的空白。如今，高速加工技术是当代四大先进制造技术之一，而高速主轴系统是数控雕铣机的核心功能部件之一，电主轴是高速主轴系统的主要形式。 所以本次研究的是高速数控雕铣机的总体设计，利用高性能结构陶瓷作为高速主轴轴承及主轴材料研制开发陶瓷电主轴单元，可以充分发挥陶瓷材料的优良性能，极大地减少主轴部件高速旋转的离心力和惯性力，提高主轴单元的刚度和回转精度，以适应主轴单元高速化和精密化的要求。目前，世界各国竞相发展自己的高速加工技术，高速加工技术的成功应用产生了巨大的经济效益。 关键词：数控雕铣机，高速加工技术，高速主轴系统，陶瓷电主轴单元，经济效益 CNC engraving and milling machine overall design Abstract CNC engraving and milling machine is a typical electromechanical integration products,its multiple functions,its core is on a single machine to complete the milling,carving,and other operation process, to make up for a machining center and CNC engraving machine between the empty bag. Nowadays,high speed machining technology is one of the four advanced manufacturing technology,and high-speed spindle system is one of the core features of CNC engraving and milling machine,electric spindle is the main form of high-speed spindle system. So this study is the overall design of high-speed CNC engraving and milling machine, the use of high performance structure ceramics as high-speed spindle bearings and spindle material research and development of ceramic electric spindle unit,can give full play to the ceramic material of excellent performance,greatly reducing the spindle component high speed rotating centrifugal force and inertia force,the increase of the stiffness in the spindle unit and rotary precision,to adapt to the requirement of high speed spindle unit and motors.At present, countries around the world racing to develop their own high speed machining technology,the successful application of high speed machining technology has a huge economic benefits. Keywords:CNC engraving and milling machine ,high speed machining technology,high-speed spindle system ,