EM165柴油机机体机械加工工艺及其组合机床钻孔夹具设计含8张CAD图+说明书

A0柴油机机体零件图

EM165柴油机机体机械加工工艺及其组合机床钻孔夹具设计
摘要
箱体类是机器或部件的基础零件，它将机器或部件的一些轴、套、轴承和齿轮等有关零件装配起来，使其保持正确的相互位置关系，以传递转矩或改变转速来完成规定的运动。因此，箱体的加工质量对机器的工作精度、使用性能和寿命都有直接的影响。
箱体零件虽然结构多种多样，但有共同的特点：多为铸造件，结构复杂，壁薄且不均匀，内部呈腔形，加工部位多，加工难度大。既有精度要求较高的孔系和平面，也有许多精度要求较低的紧固件。箱体类零件上面的孔与孔之间有较高的位置精度（孔与孔的平行度、孔的轴线与面有垂直度要求），其加工质量的好坏直接影响柴油机的精度和使用性能，因此柴油机汽缸的加工质量至关重要。箱体类零件的机械加工劳动量约占整个产品加工量的15%～20%。
机体是柴油机中的重要部件，属于箱体类构件。属于大规模生产。本次设计做的是“柴油机机体机械加工工艺及其组合机床钻孔夹具设计”，主要是先对机体进行零件分析；然后进行毛坯确定，根据尺寸画出毛坯图；再后进行加工工序的设定以及确定切削用量和加工工时；最后进行指定工序的夹具设计。
关键词：机体；零件分析；毛坯图；切削用量；夹具

Abstract
Box class is the foundation of the machine parts or components, the relevant parts of some axis machines or parts of it, sets, such as bearings and gears assembled to maintain the correct relationship between the mutual position to transmit torque or changing the speed to complete the required movement. Therefore, the cabinet processing quality precision machinework, performance and life has a direct impact.
Although the structure of avariety of cabinet parts, but there are common characteristics: mostly casting, complex, thinwall and uneven,was inside the chamber shape, machining parts and more difficult process. Both high precision and holes in the plane, there are many low precision fasteners. Between the hole and the hole box parts above the high position accuracy(parallel hole and the hole, the hole axis and thevertical plane of the request), the processing quality directly affect the accuracy and performance of the diesel engine Therefore the quality of critical processing engine cylinder. Machining box parts labor accounts for about 15% to 20% of the entire product processingvolume.
Airframe is important component in diesel, belongs to box body kind structure. In society procedure of production belong to give birth to a child in large scale. The part, being to be in progress first to the cylinder mainly analyses"the diesel collective machinework handicraft and their combination machine tool borehole grip design" designing being composing originally time; And then, the blank being in progress ascertains, draws up according to the dimension blank picture; Again, the queen carries out setting up processingworking procedure's and ascertains theworking hour cutting dosages and processing; Carry out the grip design allocatingworking procedure's finally.
Keywords：Airframe; Components analysis; Semifinished materials chart; Cutting specifications ; Jig.

目录
摘要1
Abstract 2
前言5
1.零件分析6
1.1机体的主要作用是6
1.3主要尺寸公差及分析9
1.4表面粗糙度要求9
2.毛坯的确定9
2.1毛坯材料及形式的确定9
2.2铸造的加工余量及尺寸公差的确定10
3.工艺规程的设计11
3.1附主视图一张11
3.2定位基准选择11
3.2.1粗基准的选择11
3.2.2精基准的选择12
3.3制定加工工艺路线12
3.3.1确定面的加工方式12
3.3.2初步确定工序13
3.3.3最终工序14
3.4刀具、量具、夹具及设备的选择16
3.5切削用量及加工工时的确定17
4.夹具设计39
4.1机床夹具的作用39
4.2机床夹具的组成40
4.3夹具设计40
4.3.1定位的选取40
4.3.2弹簧的计算及选取41
4.3.3夹紧力计算42
4.3.4汽缸的选择43

4.3.5连接板的选用44
4.3.6上底板44
4.3.7下底板45
4.3.8支撑杆的选用45
4.3.9钻模的选取46
4.3.10定位误差分析46
4.4夹具的使用及维护48
4.5夹具标准件的选择48
4.5.1支撑杆螺母的选择48
4.5.2连接板上螺钉选择49
4.5.3管接式法兰汽缸套件的选择49
结论50
参考文献51
致谢53

A0钻削夹具装配图

A1毛坯图

A1钻模板前

机械加工工艺综合卡片1

机械加工工艺综合卡片2

3设计所包含文件

A1钻削夹具零件下底板

A1钻模板

1字数

5过程卡

4目录

2摘要