连杆新物流/关键工装设计.doc
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连杆新物流/关键工装设计,connecting rod new logistics and key equipment design12400字 29页摘要本文主要论述了柴油机连杆的加工工艺及其夹具设计。因为连杆是活塞式发动机的主要零件之一，其大头孔与曲轴连接，小头孔通过活塞销与活塞连接，其作用是将活塞的气体压力传送给曲...
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连杆新物流/关键工装设计
Connecting rod new logistics and key equipment design
12400字 29页
摘 要
本文主要论述了柴油机连杆的加工工艺及其夹具设计。因为连杆是活塞式发动机的主要零件之一，其大头孔与曲轴连接，小头孔通过活塞销与活塞连接，其作用是将活塞的气体压力传送给曲轴，又受曲轴驱动而带动活塞压缩汽缸中的气体。连杆承受的是冲击动载荷，因此要求连杆质量小，强度高。所以在安排工艺过程时，按照“先基准后一般”的加工原则。连杆的主要加工表面为大小头孔和两端面，较重要的加工表面为连杆体和盖的结合面及螺栓孔定位面。在夹具设计方面也要针对连杆结构特点比较小，设计应时应注意夹具体结构尺寸的大小等，最终就能达到零件的理想要求！
本设计主要研究内容及其创新性工作如下：
1、针对现有的连杆存在的强度、刚度不足、生产工艺复杂等问题，根据连杆工作原理，提高夹具的制造精度，减少配合间隙并改进加工工艺流程。
2、针对现有连杆组容易疲劳断裂和遭蔃@寤鞯奈侍猓∮肅70S6高碳微合金非调质钢材料及渗碳淬火加回火再退火的热处理加以解决。
3、为了提高整个工艺加工的生产效率，在保证定位夹紧要求和零件的各项技术要求的前提下，对于夹具的选择也充分考虑到了一定的经济性。
关键词: 连杆，新物流，关键工装，加工工艺，夹具设计
Connecting rod new logistics and key equipment design
Abstract
The diesel connecting rod treating handicraft the main body of a book has been discussed mainly and their grip design. Because of the connecting rod is one of dyadic engine of piston and main compression engine part, whose larger end hole and crank shaft link up , the small head hole links up by the wrist pin and the piston , whose effect is that the piston gas pressure is transmitted to the crank shaft , collect crank shaft gas in driving but setting a piston in motion to compress a cylinder. Being that the pole bears pounds a live load , request connecting rod mass is minor therefore , the intensity is high. Therefore when arranging procedure for, according to "first the criterion queen-like " treating principle. The connecting rod main part processes a surface being that head hole and both ends big or small are weak, more important faying face and bolt hole locating surface being the connecting rod body and cover treating outside. Also should be comparatively small specifically for connecting rod structure characteristic in the field of grip design , design that the size should pay attention to gripping the concrete structure dimension of the season waits, the ideal being therefore likely to reach a part ultimately demands!
This design research contents and innovative work is as follows:
1. In view of the existing strength and rigidity of the connecting rod is insufficient, complex production process and so on, according to the working principle of connecting rod, improve the manufacturing precision of the fixtures, reduce fit clearance and improve the machining process.
2. In view of the existing connecting rod set of fatigue fracture and hit, choose high carbon microalloy non quenched and tempered steel C70S6 and carburizing and quenching and tempering and annealing heat treatment.
3. In order to improve the production efficiency of the whole process, in the technology to ensure the positioning clip matter sum parts requirements under the premise of the jig also give full consideration to the choice of certain economy.
Keywords:Connecting rod; New logistics; Key equipment; Processing technology; Design of clamping device
目录
第一章：绪论 2
1.1研究的背景及意义 2
1.2设计目的 3
1.3设计内容 3
1.4设计依据 3
1.5本章小结 4
第二章：夹具简述 5
2.1机床夹具概述 5
2.1.1机床夹具及其组成 5
2.1.2机床夹具的分类 5
2.1.3机床夹具的功用 6
2.2工件在夹具上的定位 6
2.2.1常用定位方法与定位元件 7
2.2.2定位误差的计算 8
2.3工件在夹具上的夹紧 9
2.3.1对夹紧装置的要求 9
2.3.2夹紧力的确定 9
2.3.3常用夹紧机构 10
2.3.4夹紧夹紧装置 13
第三章：连杆夹具总体设计 1..
Connecting rod new logistics and key equipment design
12400字 29页
摘 要
本文主要论述了柴油机连杆的加工工艺及其夹具设计。因为连杆是活塞式发动机的主要零件之一，其大头孔与曲轴连接，小头孔通过活塞销与活塞连接，其作用是将活塞的气体压力传送给曲轴，又受曲轴驱动而带动活塞压缩汽缸中的气体。连杆承受的是冲击动载荷，因此要求连杆质量小，强度高。所以在安排工艺过程时，按照“先基准后一般”的加工原则。连杆的主要加工表面为大小头孔和两端面，较重要的加工表面为连杆体和盖的结合面及螺栓孔定位面。在夹具设计方面也要针对连杆结构特点比较小，设计应时应注意夹具体结构尺寸的大小等，最终就能达到零件的理想要求！
本设计主要研究内容及其创新性工作如下：
1、针对现有的连杆存在的强度、刚度不足、生产工艺复杂等问题，根据连杆工作原理，提高夹具的制造精度，减少配合间隙并改进加工工艺流程。
2、针对现有连杆组容易疲劳断裂和遭蔃@寤鞯奈侍猓∮肅70S6高碳微合金非调质钢材料及渗碳淬火加回火再退火的热处理加以解决。
3、为了提高整个工艺加工的生产效率，在保证定位夹紧要求和零件的各项技术要求的前提下，对于夹具的选择也充分考虑到了一定的经济性。
关键词: 连杆，新物流，关键工装，加工工艺，夹具设计
Connecting rod new logistics and key equipment design
Abstract
The diesel connecting rod treating handicraft the main body of a book has been discussed mainly and their grip design. Because of the connecting rod is one of dyadic engine of piston and main compression engine part, whose larger end hole and crank shaft link up , the small head hole links up by the wrist pin and the piston , whose effect is that the piston gas pressure is transmitted to the crank shaft , collect crank shaft gas in driving but setting a piston in motion to compress a cylinder. Being that the pole bears pounds a live load , request connecting rod mass is minor therefore , the intensity is high. Therefore when arranging procedure for, according to "first the criterion queen-like " treating principle. The connecting rod main part processes a surface being that head hole and both ends big or small are weak, more important faying face and bolt hole locating surface being the connecting rod body and cover treating outside. Also should be comparatively small specifically for connecting rod structure characteristic in the field of grip design , design that the size should pay attention to gripping the concrete structure dimension of the season waits, the ideal being therefore likely to reach a part ultimately demands!
This design research contents and innovative work is as follows:
1. In view of the existing strength and rigidity of the connecting rod is insufficient, complex production process and so on, according to the working principle of connecting rod, improve the manufacturing precision of the fixtures, reduce fit clearance and improve the machining process.
2. In view of the existing connecting rod set of fatigue fracture and hit, choose high carbon microalloy non quenched and tempered steel C70S6 and carburizing and quenching and tempering and annealing heat treatment.
3. In order to improve the production efficiency of the whole process, in the technology to ensure the positioning clip matter sum parts requirements under the premise of the jig also give full consideration to the choice of certain economy.
Keywords:Connecting rod; New logistics; Key equipment; Processing technology; Design of clamping device
目录
第一章：绪论 2
1.1研究的背景及意义 2
1.2设计目的 3
1.3设计内容 3
1.4设计依据 3
1.5本章小结 4
第二章：夹具简述 5
2.1机床夹具概述 5
2.1.1机床夹具及其组成 5
2.1.2机床夹具的分类 5
2.1.3机床夹具的功用 6
2.2工件在夹具上的定位 6
2.2.1常用定位方法与定位元件 7
2.2.2定位误差的计算 8
2.3工件在夹具上的夹紧 9
2.3.1对夹紧装置的要求 9
2.3.2夹紧力的确定 9
2.3.3常用夹紧机构 10
2.3.4夹紧夹紧装置 13
第三章：连杆夹具总体设计 1..
