轴承座φ32孔镗削专机设计+CAD图纸
关键字: 镗床；专用夹具；结构设计；
The Boring machine Design forφ32 Bearing housing
Abstract：Boring boring tool is mainly used on the workpiece existing prefabricated hole boring machine. Typically, boring tool rotation main movement, the movement of the boring tool or workpiece feed motion. It is mainly used for precision machining holes or location to complete the finishing of a plurality of apertures, in addition to in the hole finishing machining surface processing. Use different tools and accessories but also for drilling, milling, cut the machining accuracy and surface quality is higher than the drilling machine. The boring machine is a large box of parts processing equipment. Thread and processing cylindrical and face. This is designed to produce a boring boring plane specially machined bearing housing 32 holes, the main features of this boring is to save time and labor. This boring plane only drilling a workpiece for the 32 holes of the bearing housing. The machine is simple in structure, high degree of centralization, targeted, high efficiency, able to adapt to the requirements in the production of large quantities of production. It improves the efficiency of production, but also simplifies the operation procedures, and reduce the labor intensity.
key word: Boring machine; special fixtures; structural design;
目录
1 引言..1
1.1 概述..1
1.2 镗床的发展..1
1.3 镗床专机与普通镗床比较..3
1.4 镗削..3
1.4.1 镗削概述.3
1.4.2 镗削加工.4
1.4.3 镗削常用镗刀4
2 传动方案的确定 5
2.1 镗削专机传动方案的确定..5
2.2 镗床刀具的选择.5
2.3 电动机的选择及相关参数..7
3 齿轮设计.8
3.1 齿轮的概述..8
3.2 齿轮的分类..8
3.2.1 齿轮的材料..8
3.2.2 齿轮材料的选择.8
3.3 按齿根弯曲疲劳强度设计齿轮.9
3.4 齿轮的校核.11
3.5 齿轮的尺寸.11
3.6 齿轮的失效形式12
3.7 齿轮的润滑特点13
4 主轴的设计及校核 14
4.1 轴承的选择.14
4.2 主轴的设计.14
4.3 主轴弯矩图的绘制.16
4.4 轴承的润滑.19
4.5 键的选择20
4.6 键的校核20
5 夹具的设计 22
5.1 夹具的简介.22
5.2 机床夹具的分析.. 23
5.2.1 专用夹具的分析23
5.2.2 优尔点定位原理..25
5.2.3 优尔点定位原理的应用..26
5.3 定位误差的分析与计算26
5.3.1 定位误差定义..26
5.3.2 夹具的误差计算27
5.4 夹紧机构的确定27
5.5 夹紧力的计算..28
6 小结.30
7 致谢.31
8 参考文献32
1 引言
1.1 概述
镗床分为卧式镗床、落地镗铣床、金刚镗床和坐标镗床等类型。①卧式镗床：应用最多、性能最广的一种镗床，适用于单件小批生产和修理车间。②落地镗床和落地镗铣床：特点是工件固定在落地平台上，适宜于加工尺寸和重量较大的工件,用于重型机械制造厂。③金刚镗床:使用金刚石或硬质合金刀具，以很小的进给量和很高的切削速度镗削精度较高、表面粗糙度较小的孔，主要用于大批量生产中。④坐标镗床：具有精密的坐标定位装置，适于加工形状、尺寸和孔距精度要求都很高的孔，还可用以进行划线、坐标测量和刻度等工作，用于工具车间和中小批量生产中。其他类型的镗床还有立式转塔镗铣床、深孔镗床和汽车、拖拉机修理用镗床等。