文档介绍：摘要
组合机床是根据工件加工需要,以大量通用部件为基础,配以少量专用部件组成的工序集中的一种高效专用机床。而且其生产效率高,加工精度稳定,自动化程度高,使工人劳动强度降低。
本次设计的是一台加工“汽车制动室支架”的组合钻床,主要用来一次性加工完成汽车制动室支架的二个零件,共计10个孔,一次安装两个工件,左主轴箱钻4孔,右主轴箱钻6孔,我负责设计的是右主轴箱和中间底座的设计。
根据所加工孔的位置及速度要求,算出切削速度和主轴转速,确定右主轴箱轮廓尺寸、主轴的型式和直径。再根据驱动轴位置和转速、各主轴位置及其转速要求,合理布置传动轴的位置,把驱动轴和各主轴连接起来,使各主轴获得所需转速和转向,完成钻孔。
中间底座的结构、尺寸则需要根据工件的大小、形状以及组合钻床的配置形式等来确定。
由于组合钻床能够进行多工位加工,提高自动化程度,缩短加工时间和辅助时间。而且组合钻床大部分都是由通用部件组成,研制周期较短,便于设计、制造和使用维护,成本低。而且机床易于改造,产品和工艺变化时,通用部件还能重复利用,经济性较好。所以组合机床在大批量生产中的应用十分广泛。
关键词:组合钻床;主轴箱;中间底座
Abstract
Combination machine is based on the workpiece processing needs,take a large number of general part as the foundation, with a few of dedicated part poses the focus on process of a efficient special its production efficiency is high,machining accuracy is stable, degree of automation is high,cause the workers labor intensity to reduce.
This design is bination drilling machine of processing "automobile brake room stent" , mainly uses plete two parts of automobile brake room stent which processing a one-time, the total 10 holes, one-time installs two workpieces, the left spindle box drills 4 , the right spindle box drills 6 , what I am responsible to the design of the right spindle box and the middle base .
According to processes the hole the position and the speed request, calculated to cutting speed and the spindle speed ,determines the right spindle box outline of size, the spindle type and the according to drive shaft position and speed, various spindle position and rotational speed request, reasonable arrangement transmission shaft location, connects the drive shaft and various spindle ,causes various spindle to obtains needs the rotational speed and change direction , completes the drill hole.
The middle base’s structure , size has to be based on the workpiece size, the shape as well as bination drilling machine configuration form and so on to determined.
Due to bination drilling machine carries on the multi-location processi