毕业设计论文立式升降台数控铣床主传动系统设计全套图纸.doc

XXX大学本科生毕业论文 立式升降台数控铣床主传动系统设计 院　　　　(系)：机电工程学院 专　　　　　业：机械设计制造及其自动化 学　　　　　号：学　生　姓　名： 指　导　教　师：　2010年6月 摘 要 数控技术和数控设备是制造工业现代化的重要基础。数控铣床是机械和电子技术相结合的产物，其机械结构随着电子技术在铣床上的应用和人们对铣床性能的各种技术要求，而逐步发展变化。 本课题主要对数控铣床的主传动系统、Z向进给系统进行了结构设计，并进行了必要的选择计算和校核计算，主要设计工作包括主轴箱及其内部传动件的设计计算，主轴驱动电机的选择计算，主轴变速电机用联轴器，滚珠丝杠的选择计算，滚动导轨的选择计算，伺服电机的选择计算，以及相应的重点部件的强度校核、寿命校核。 全套图纸，加153893706 本设计采用主轴箱垂直进给的方式，主轴电动机在主轴箱上提供动力输出，Z向由伺服电机和制动器完成升降和停止运动。 本文对立式数控铣床的基本结构、基本尺寸进行了详细的设计、计算，并利用UG NX4对数控铣床的结构进行三维建模，以便更直观地展现设计思想和后期的装配及运动仿真，然后对在设计中选择的各种典型零件进行校核计算，保证设计的可靠性。 关键词：数控铣床；主传动系统；Z向进给系统 ABSTRACT CNC numerical control technology and equipment is an important foundation for modern manufacturing industry.CNC milling machine is a combined product of mechanical and electronic technology.Its mechanical structure evolves gradually with the application of electronic technology on milling and the various requirements of the performance of milling. The structure of the main driving system and Z feed feeding system are designed in this issue and necessary choice of calculation and verification calculations are made. The main design work includes the designing and calculating the spindle box and its internal transmission parts, selecting and calculating the spindle drive motor and its coupling, ball screw, scroll guide, servo motor and checking the strength and life of the corresponding key parts . Headstock vertical feed means is chosen in this designing. The spindle motor in the spindle box provides output-power. Z feed systerm is completed by the servo motor and the brake slows down and stops the movement. The basic structure and basic dimensions of the Vertical CNC milling machine are designed, and calculated in detail in this issue.UG NX4 is used for the structure of the CNC milling machine three-dimensional modeling for a more intuitively display,post-assembly and simulation,Then the typical selected components in this design are checked calculation. To ensure the reliability of this design. Key words：CNC milling mac