文档介绍：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立式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
Abstract
Numerical control there is in the future lathe to in will develop,the middle-grade to adopt popular numerical control knife rest form plete set, adopt the motive force type knife rest top-gradly, 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 an 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
绪论 1
第1章数控自动刀架总体介绍 2
数控自动刀架的设计背景 2
设计准则 2
主要技术参数 2
本章小结 3
第2章自动刀架电气说明书 4
电动刀架系统 4
电动刀架及其工作原理 4
2. 1. 2 电动刀架动作过程 4
技术说明 5
接口注意事项 6
在装调中,可能出选的异常现象及原因 6
PLC控制说明 11
本章小结 14
第3章电动刀架机械说明书 15
工作原理 15
刀架动作顺序 15
步进电机的选用 15
蜗轮及蜗杆的选用与校核 16
选择蜗杆传动类型 16
3. 4. 2 选择材料 16
按齿面接触疲劳强度设计 16
蜗杆与蜗轮的主要参数与几何尺寸 18
3. 5. 1 蜗杆 18
3. 5. 2 蜗轮 18
3. 5. 3 校核齿根弯曲疲劳强度 18
轴的校核与计算 19
画出受力简图 19
3. 6. 2 画出扭矩图 19
3. 6. 3 弯矩图 20
弯矩组合图 20
根据最大危险截面处的扭矩确定最小轴径 20
连轴器的选择 21
类型选择 21