30#-12T型立式加工中心盘式刀库设计【3张图/11400字】【优秀机械毕业设计论文】

文档包括:
说明书一份,32页,11400字左右.

图纸共3张:
A3-刀库外形示意1.dwg
A3-刀库外形示意2.dwg
A3-刀库外形示意3.dwg

摘 要
90年代以来，数控加工技术得到迅速的普及及发展，高速加工中心作为新时代数控机床的代表，已在机床领域广泛使用。自动换刀刀库的发展俨然已超越其为数控加工中心配套的角色，在其特有的技术领域中发展出符合机床高精度、高效率、高可靠度及多任务复合等概念的独特产品。刀库作为加工中心最重要的部分之一，它的发展也直接决定了加工中心的发展。本论文完成的是盘式刀库的总体设计、传动设计、结构设计以及传动部分的运动和动力设计。这种刀库在数控加工中心上应用非常广泛，其换刀过程简单，换刀时间短，定位精度高；总体结构简单、紧凑，动作准确可靠；维护方便，成本低。本刀库减速传动部分分两级减速，一级传动部分采用齿轮减速装置，二级传动部分采用蜗轮蜗杆减速装置，此种设计方案可提高输出轴的传动平稳性能，即提高刀盘的运转平稳性。本刀库满载装刀24把，采用单环排列方式排放，按就近选刀原则选刀。

关键词：加工中心；刀库；数控加工

ABSTRACT
Since the 1990s, CNC machining technology made the rapid and universal development, as a new era of the representatives of NC machine tools, High-speed processing center has been widely used in the field of machine tools. The development of automatic Tool Change,s tool house in recent years seems to have gone beyond the NC Center for supporting the role of technology in their unique areas of development to meet the high-precision machine tools, high efficiency and reliability, and more complex tasks, such as the concept of unique products . The tool house as a processing center one of the most important part, it has a direct bearing on the development of the processing center's development. This paper completed the overall design,transmission design,structure design and the transmission part's movement and dynamic design of the disc tool house. Such a tool house in the CNC Machining Center is widely used, the tool change is simple, tool change time is short, high-precision positioning; overall structure is simple and compact , Action is accurate and reliable; convenient maintenance and low cost. The slowdown part in the transmission of the tool house includes two parts, the first part of the transmission is gear deceleration device, the second transmission part of the transmission is Worm Gear deceleration device, such design can increase the output shaft of the transmission smooth performance, improve the smooth functioning of the tool house. The tool house which can load with the maximum of 24 tools use single-ring arrangement of emissions and according to the principle of the nearest to election tools.

Key words: Machining centers; Tool house; NC

目 录
1 引言 1
1.1 数控加工中心概述 1
1.2 数控加工中心的分类 1
1.3 加工中心的主要加工对象 2
1.4 加工中心的特点 3
1.5 加工中心刀库的形式 4
1.6 换刀装置的形式 5
2 总体方案的确定 7
2.1 刀库主要参数 7
2.2 电动机的初选 7
2.3 确定传动装置的总传动比和分配传动比 8
2.4 确定各轴转速、转矩和功率 9
2.5 电动机的校核 11
3 刀库设计与校核 13
3.1 齿轮传动的计算 13
3.2轴的校核 17
3.3滚动轴承的校核 21
3.4蜗轮蜗杆的设计 22
3.5键的校核 22
4 刀具交换装置 23
4.1换刀简介 23
4.2换刀过程 23
结论 24
致谢 25
参考文献 26
附录1 27
附录2 28