数控车床自动回转刀架设计_英语论文_新浪博客企业库|免费b2b网站

论文编号:JX410 包括设计图,说明书字数:8456.页数:27

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，xx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。根据加工对象不同，有四方刀架、六角刀架和八（或更多）工位的圆盘式轴向装刀刀架等多种形式。回转刀架上分别安装四把、六把或更多刀具，并按数控装置的指令换刀。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CAXA做图，对电动刀架有更直观的了解。{zh1}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
The CNC lathe in the future will be high when the development of mid-range universal CNC tool carrier with matching high-grade use of power-type knife, both hydraulic turret, servo turret, vertical turret and other varieties, is expected in recent years on the NC turret demand will increase significantly. CNC turret trend is: With the development of CNC lathes, CNC turret began to fast tool change, electro-hydraulic combination of drive and servo drive direction. According to processingThere are four knife, hexagonal turret, and eight (or more) station of the disc cutter knife and other forms of axial loading. Were installed on the rotary turret 4, 6 or more tools, numerical control device in accordance with ATC instructions. This section mainly four-station vertical electric tool for mechanical design and application of relay - access control system for the design of control section. Some of the above as well as the use of CAXA to do maps, electric tool has a more intuitive understanding. The final proposed for electric razors made comments and measures.
Keywords: NC razors, electric razors, four-station

目录
第1章引言……………………………………………………1
1.1概述………………………………………………………………1
1.2 数控车床自动回转刀架的发展趋势……………………………1
1.3 刀架的设计准则…………………………………………………2
1.4 刀架的主要技术参数……………………………………………2
第2章数控车床自动回转刀架设计…………………………4
2.1刀架的工作原理…………………………………………………4
2.2 步进电机的选用…………………………………………………5
2.3 蜗杆及蜗轮的选用与校核………………………………………6
2.3.1 选择传动的类型和精度等级………………………………………6
2.3.2 选择材料和确定许用应力…………………………………………6
2.3.3 按接触强度确定主要参数…………………………………………6
2.4 蜗杆轴的设计……………………………………………………8
    2.4.1 蜗杆轴的材料选择,确定许用应力………………………………8
    2.4.2 按扭转强度初步估算轴的最小直径………………………………8
    2.4.3 确定各轴段的直径和长度…………………………………………9
    2.4.4 蜗杆轴的校核………………………………………………………10
    2.4.5 键的选取与校核……………………………………………………14
2.5 蜗轮轴的设计…………………………………………………14
    2.5.1 蜗轮轴的材料选择,确定许用应力………………………………14
    2.5.2 按扭转强度初步估算轴的最小直径……………………………14
    2.5.3 确定各轴段的直径和长度…………………………………………15
2.6 中心轴的设计…………………………………………………15
    2.6.1 中轴的材料选择,确定许用应力…………………………………15
    2.6.2 确定各轴段的直径和长度…………………………………………15
    2.6.3 轴的校核……………………………………………………………16
2.7 齿盘的设计……………………………………………………17
    2.7.1 齿盘的材料选择和精度等级……………………………………17
    2.7.2 确定齿盘的参数……………………………………………………17
    2.7.3 按接触疲劳强度进行计算…………………………………………17
2.8 轴承的选用……………………………………………………19
    2.8.1 轴承的类型………………………………………………………19
    2.8.2 轴承的游隙及轴上零件的调配……………………………………19
    2.8.3 轴承的配合…………………………………………………………19
    2.8.4 轴承的润滑…………………………………………………………19
    2.8.5 轴承的密封装置……………………………………………………19
第3章刀架体的设计………………………………………………………21
第4章结论………………………………………………………………………22
致谢…………………………………………………………………………………23
参考文献…………………………………………………………………………24

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