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中文摘要自动武器零件的疲劳试验在自动武器的设计研发中具有很重要的意义，自动武器零件的疲劳试验，并不是真枪实弹的用枪不停的去打，那样会造成诸多的浪费，我们通常采取的手段是，取出单个零件，在力学测试实验台上，模拟枪械实际射击时零件的受力情况，以此来检测零件的疲劳特性。这样，零件在实验台上的可靠装夹就成了一个至关重要的问题。60670
本文就“85式重机枪闭锁片”，“56式7.62mm冲锋枪机头”，“56式7.62mm冲锋枪击锤”，“56式7.62mm冲锋枪击针”，“M1911枪管”的装夹设计了一套组合夹具，分析了夹具装夹枪械零件的可靠性，对具体的某些受力较大的夹具单元作了有限元分析，力求夹具在理论上装夹可靠。
自动武器试验中的夹具设计，既有一般组合夹具设计的普通性，又有对枪械零件装夹的特殊性，在设计过程中，本着“可靠装夹，兼顾通用”的思想，首先做到对零件的可靠装夹，再次考虑不同装夹中元件的通用性。
最后，经过两个多月的努力，夹具设计已经全部完成，本论文就是夹具的设计方案。
毕业论文关键词 组合夹具，自动武器零件装夹，有限元分析
毕业设计说明书（论文）外文摘要
Abstract
Automatic weapons parts of the fatigue test in the research and development of the design of automatic weapon has the very vital significance. In automatic weapons parts fatigue test, not with a gun to shoot bullets. Because that would cause a lot of waste, the means we usually adopt is taking out a single part and simulating actual shooting firearms force of the parts on the mechanical test bench. Thus, parts on the experiment bench of reliable clamping are a crucial problem.
In this paper, I chose “the locking piece of Type 85 heavy machine gun”,“the nose of Type 56 submachine gun”,“the firing pain of Type 56 submachine gun”,“the barrel of M1911” as examples and designed a set of modular fixture. Then I studied the reliability of fixture and did the finite element analysis for some parts which standing the great pressure. To strive to jig is reliable in theory.
On the one hand, the fixture design in automatic weapons test is common as other fixture; on the other hand, there is some particularity in the clamping gun accessories. In this design, I abidance by a law which said “The clamping reliable is the most important, but also considering the versatility.” First of all, I did reliable clamping of parts, the considering the generality.
Finally, with the efforts of more than two months, Fixture design has been completed, This thesis is the jig design.
Keywords built-up jig, Automatic weapons parts clamping, finite element analysis
目 录
1 绪论 1
1. 1 选题的意义 1
1. 2 组合夹具简述 1
1.3 论文研究工作总纲 2
2 夹具设计 5
2.1 闭锁片的装夹 5
2.1.1 85式12.7mm重机枪闭锁片 5
2.1.2 夹具的装夹设计 5
2.2 击针的装夹 8
2.2.1 56式7.62mm冲锋枪的击针简述 8
2.2.2 夹具设计 9
2.3 装夹机头
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