MJ-50型数控车床电动刀架设计
摘    要
数控车床今后将向中高当发展，中档采用普及型数控刀架配套，高档采用动力型刀架，兼有液压刀架、伺服刀架、立式刀架等品种，预计近年来对数控刀架需求量将大大增加。数控刀架的发展趋势是：随着数控车床的发展，数控刀架开始向快速换刀、电液组合驱动和伺服驱动方向发展。 
本部分主要对四工位电动刀架的机械设计和应用继电-接触控制系统控制部分的设计。并对以上部分运用AUTOCAD做图，对电动刀架有更直观的了解。最后的提出了对电动刀架提出了意见和措施。
 
关键词：数控刀架, 电动刀架, 四工位  

Electric turret design of MJ-50 CNC lathe
Abstract
Numerical control there is in the future lathe to in will develop, the middle-grade to adopt popular numerical control knife rest form a complete set, adopt the motive force type knife rest top-grandly, have such varieties as knife rest of hydraulic pressure, servo knife rest, vertical knife rest ,etc. concurrently, it is estimated that will increase to numerical control knife rest demand greatly in recent years. The development trend of the numerical control knife rest is: With the development of numerical control lathe, numerical control knife rest begin to change one hundred sheets , electric liquid is it urge and urge direction develop while being servo to make up fast. Some originally design and is it continue electricity to use to four worker location vertical electronic machinery of knife rest mainly- exposed to control system control some designs. And use AUTOCAD to pursue to the above part, have a more ocular knowledge of electronic knife rest. The last proposition has put forward the suggestion and measure to the electronic knife rest.
 
Keyword： Numerical control knife rest，Electronic knife rest，Four engineering location
 

目 录
前 言 1
1 电动刀架总体设计 3
1.1 设计背景 3
1.2 设计总体方案 4
1.2.1减速机传动机构设计 7
1.2.2刀体锁紧与精定位机构的设计 8
1.2.3抬起机构的设计 8
1.3设计内容 9
1.4本章小结 9
2电动刀架机械部分设计 10
2.1电动刀架工作原理 10
2.2蜗轮及蜗杆的设计及校核设计内容 11
2.2蜗轮及蜗杆的主要参数与几何尺寸设计内容 15
2.3螺杆的主要参数与几何尺寸 16
3 电器控制部分的设计 18
3.1 硬件电路设计 18
3.2 控制软件设计 22
结 论 25
致 谢 26
参考文献 27