非回转式高速通孔动力卡盘装置设计（本科毕业论文设计）.doc

非回转式高速通孔动力卡盘装置设计（本科毕业论文设计）
摘 要
随着科学技术的不断进步，工业生产规模的不断扩大和自动化程度的提高，夹具在现代化生产中应用越来越广泛，作用也越来越大。同时高精度、高效率将是机床行业的发展趋势。在机械制造各行业的工艺过程中广泛应用着各种不同的，用以固定加工对象，使之占有正确位置，以便接受施工的一种工艺装备，统称为夹具。无论是在机械加工、装配、检验，还是在焊接、热处理等冷、热工艺中，以及运输工作中都有大量采用夹具。但在机械加工中应用最为广泛的是金属切削机床上使用的夹具，即我们所称的机床夹具。机床夹具是在机床上用以准确、迅速地安装工件或刀具，从而保证工件与刀具间正确相对位置地一种工艺装备。机床夹具总的可以分为两大类。一类是用以安装工件的，一般通称为夹具；另一类是用以安装刀具的，一般通称为辅具。如车床上的卡盘就属于前一类，是一种通用的机床夹具。
在对机械加工的高精度、高速化需求不断提高时，卡盘作为机床和工件的中间接续作用越发重要起来。为满足用户追求多样化、高规格机械加工的要求，现正在不断开发各种各样的卡盘产品。卡盘分为手动卡盘和动力卡盘，动力卡盘是CNC车床和自动车床上的一种重要零部件譆@桑渲幸貉苟ㄅ毯推ㄅ逃τ米罟恪Ｏ钟械某荡仓髦岷蠖伺渥坝型饪腔刈蚧钊刈蕉τ透祝捎谕饪腔蚧钊嬷髦岣咚倩刈虼耍晕锛牧稀⑶慷龋咚倨胶饩燃案咚倥溆汀⒚芊猓Ｑ沟确矫嫘栌薪细咭螅ひ漳讯却螅硗猓捎谥髦岬母髦种岢芯性亟洗笸评Γ识晕榷ê捅３种髦岣咚倩刈龋褂檬倜幸欢ㄓ跋臁Ⅻbr>非回转式高速通孔动力卡盘装置，由于环型动力缸、环型活塞等均不随主轴旋转，有效地减少了随主轴旋转部分零件数量及旋转的质量，同时，因环型动力缸不旋转，供油方便简单，易于密封和保压，环型动力缸直接安装在主轴箱上，有利于提高主轴动平衡，简化主轴设计时的影响因数。

关键词：机床夹具，动力卡盘，环形动力缸

ABSTRACT
With scientific and technological advancements, and the continued expansion of the scale of industrial production and increased automation, jig is used more and more wildly in the modern production, and plays a more important role than before. At the same time high-precision and high-efficiency machine tool will be the development trend in the field. In the machinery manufacturing industry it in the processes of a wide variety of applications for processing, is named jig，which is fixed object to a correct position to receive a construction techniques and equipment. Whether in the mechanical processing, assembly, testing or in welding and heat treatment, such as cold, heat processes, and transportation, jig has to be used largely. But in the mechanical processing, the most widespread application is the use of metal cutting machine tools, namely fixtures, which we call the machine tool jig. In machine tooling, machine tool jig is used to install working and tools accurately and quickly, thus ensuring inter-working with cutlery to a correct position. Machine tool jig generally can be divided into two categories. The first category is for the installing working, commonly known as fixtures; the other is to install tools, while as term. The chuck on the car belongs to the former and is a common machine tool jig.
In the mechanical processing, the demand of high-speed and high-precision increases, so chuck which joins the machine tools and workpiece is more and more focused. In order to satisfy the request that the customer pursues the diversification, high specification machine to process, they have developed kinds of chunk continuously. Chuck is divided into manual and power or motive chuck, power chuck on the CNC lathe and automatic lathe is an important component and part, among which hydraulic power chuck and pneumatic power chuck are most popular. At present a general lathe spindle back-end is serviced with external rotation or piston-engine tank rotation motive oil urn, as a result of high-speed rotation, therefore on the target material, intensity, high-speed and high-speed precision balanced with oil, sealed, keeping pressure and so on are in higher demanding, in addition, as the bearings of the main axis are carrying larger push pull, the stability and high-speed rotation axis precision, life are affected partly.
Non-rotation high-speed links impetus chuck devices, as plate drive tanks and plate-piston don’t rotate with the main axis, which effectively reduced the revolve spare parts quantities and rotary quantities with the principal axis, and because plate drive tank is not spinning, either facilitate simple, easy sealed and keeping pressure, so the plate drive tank is installed directly in the main box, it will help to raise the main motion balance, and simplify the influence factors in the principal axis design.

Keywords : machine tool jig, power chuck, circular drive tank

要 I
ABSTRACT I
1 绪 论 1
1.1 机床夹具概述 1
1.1.1 机床夹具的功用和组成 1
1.1.2 机床夹具的分类 3
1.2动力卡盘 5
1.2.1动力卡盘国内外研究现状 5
1.2.2动力卡盘的结构形式 6
1.3 本文研究的目的 7
1.4 课题的主要研究内容 8
2 总体方案设计 10
2.1 夹紧装置的设计 10
2.1.1 夹紧装置的组成和基本要求 10
2.1.2 夹紧机构的分析和选择 11
2.2 动力系统的选择及分析 15
2.2.1 气动夹紧系统 15
2.2...