A夹具装配图
柴油机连杆加工工艺及夹具设计
摘要
本设计是柴油机连杆加工工艺及夹具设计，连杆是柴油机至关重要的组成部分，它主要用来传递运动和力。连杆在复杂的外力作用下工作，很容易发生变形，这就需要连杆强度要高，质量要轻。
本设计安排了柴油机连杆加工工艺，首先分析了连杆的加工现状，确定了两套加工工艺路线，择了加工的定位基准，确定重要加工表面采用的加工方法以及加工步骤。然后计算了两端面和小头孔的加工余量，并进行工序尺寸的计算，验算了加工余量。进行了切削用量，切削速度等的计算，绘制并填写了工艺卡。
进行了磨结合面的磨床夹具的设计。对连杆的尺寸和形位要求进行分析，确定定位方案，选取了定位元件，进行定位误差的计算，确定了对刀元件，进行对刀尺寸的计算，计算了磨削力，确定夹紧力以及加紧方案，绘制了连杆零件图，磨床夹具体图，夹具装配图，以及夹具体三维图等。本次设计满足工作量，能够达到设计的标准要求。
关键词：柴油机；连杆；加工工艺；夹具设计
ABSTRACT
The design of diesel engine connecting rod processing technology and fixture design .Connecting rod is an important part of diesel engine, is one of the important artifact transfer movement and force. The connecting rod works under the complicated external force, it is easy to deform, which requires high strength and light quality.
This design arranges the diesel engine connecting rod processing craft, first analyzes the connecting rod processing actuality, establishes two sets of processing craft route, chooses the processing localization datum, determine the important machining surface adopts the processing method and the processing step. Then calculate the machining allowance of both ends and small head holes, and calculate the working procedure size, check the machining allowance. The calculation of cutting dosage, cutting speed, etc. is carried out and the process card is drawn.
The grinding fixture design of the grinder-bonded surface is carried out. The dimension and shape of the connecting rod are analyzed, and the positioning scheme is determined. The positioning element is selected, the positioning error is calculated, the cutter element is calculated, the cutter size is calculated, the grinding force is determined, the clamping force is computed, the connecting rod parts drawing, the concrete drawing of the grinder clamp, the fixture assembly drawing, and the concrete 3d graph are drawn. This design meets the workload, can meet the design standard requirements.
Keywords: Diesel engine ；connecting rod processing technology ；Machine tool fixture
目录
摘要I
ABSTRACT II
1绪论1
1.1柴油机的介绍1
1.2连杆机构的介绍2
1.3连杆加工现状- 6 -
1.4设计主要内容....................................................................................3
2柴油机连杆加工工艺设计5
2.1连杆的技术要求5
2.2连杆材料的选择6
2.3工艺路线的安排6
2.4连杆的加工工艺流程6
2.5定位基准的选取7
2.6加工余量的计算.............................................................................7
2.7加工方法及工序尺寸的计算.......................................................8
2.8切削用量的计算...........................................................................10
2.9典型工序尺寸的计算...................................................................11
3机床夹具的设计15
3.1设计要求的分析15
3.2总体方案的设计16
3.3定位误差的分析...........................................................................16
3.4对刀装置的设计.........................................................................17
3.5夹紧装置的选择及夹紧力的计算...............................................18
4环保分析...................................................................................................22
结论23
参考文献24
附录1 25
附录2 28
致谢32
夹具体
设计所包含文件
字数统计
连杆体零件图
连杆体毛坯图
连体盖零件图
工序总卡
夹具设计部分
连杆工序卡片总图
