摘要：机床主轴基本上完成两个任务：（1）在空间精确的旋转刀具（钻削，铣削，磨削）或工件（车削）；（2）把所需要的能量传递到切削区
  本课题所研究的斗笠式刀库实训台主要能够实现主轴准停、自动松拉刀、伺服驱动、主轴回转等功能。主轴准停即在自动换刀的数控机床上，为实现自动装卸道具，要求主轴每次都能停在一个固定的位置上，即保证使刀柄上的键槽对准主轴的端面键，这就要求主轴必须具备定向控制功能，而本课题通过电气式磁力传感器实现准停；自动松拉刀即数控机床加工过程中往往有多道工序，会用到多把不同的刀具，这就涉及到主轴换刀装置，对刀的松开、夹紧有了要求，本课题采用液压传动实现松拉刀；同时还需要满足方便快捷、安全可靠等要求；伺服驱动即主轴Z向通过伺服驱动系统实现进给，采用伺服电机带动滚珠丝杠传动的方式；主轴回转则是通过主轴电机带动同步带实现。21670
毕业论文关键词：斗笠式刀库；主轴部件；加工中心；伺服装置；主轴准停；自动松拉刀
Spindle unit design of Vertical machining center
Abstract: The spindle is essentially complete two tasks: ( 1 ) in the space of precise rotary tool ( drilling, milling , grinding ) or workpiece ( turning ) ; ( 2 ) the energy needed to pass to the cutting areaThe topics studied Armless main library training sets to achieve accurate stop the spindle , automatic Songla knife , servo drives, spindle rotation and other functions. Spindle stop that is quasi- automatic tool changer CNC machine tools for automatic loading and unloading props required every time the spindle stops at a fixed position, which is to ensure the alignment so that the spindle shank keyway on the end face of the bond , which must have the required spindle orientation control functions, and the subject of an electric type magnetic sensor to achieve accurate stop ; automatically Songla knife that CNC machining process often multiple processes, will use multiple different tools , which involves the spindle tool changer , loosen the knife clamping had requested , the subject adopts hydraulic transmission to achieve Songla knife ; convenient also need to meet safety and reliability requirements ; servo drive that Z- axis servo drive system to achieve progress to , the use of servo motor driven ball screw drive way ; spindle rotation is achieved by the spindle motor drive belt .
Keywords:Armless library； spindle assembly； machining centers； servo；spindle stop quasi-auto matic knife Songla
目    录
1 绪论 1
 1.1 加工中心主轴部件的发展状况   1
  1.1.1 伺服传动系统研究现状  1
  1.1.2 自动换刀系统研究现状  1
 1.2 课题的目的及内容  2
 1.3 课题拟解决的关键问题   2
2 方案拟定  3
 2.1 加工中心主轴组件的组成   3
 2.2加工中心主轴组件总体设计方案的确定     3
 2.3 机械系统方案的确定  4
  2.3.1 主轴传动机构 4
  2.3.2 主轴进给机构       5
  2.3.3 主轴准停机构 6
  2.3.4 刀具自动夹紧机构     7
 2.4 伺服驱动系统方案的确定   9
3 主轴组件的主运动部件   10
 3.1 主电动机的选用    10
  3.1.1 主电机功率估算 10
  3.1.2 主电机选型   11
 3.2 主轴设计 11
  3.2.1 主轴的结构设计 11
  3.2.2 主轴受力分析 14
  3.2.3 主轴的强度校核 19
  3.2.4 主轴的刚度校核 20
 3.3同步带的设计计算   20 FA-16TL斗笠式刀库实训台主轴部件设计+CAD图纸:http://www.751com.cn/jixie/lunwen_13987.html