枪械关重件专用夹具设计+文献综述
关键词 关重件 夹具 击针 击锤 拉壳钩 缓冲装置 自动机
毕业论文设计说明书外文摘要
Title The special fixture design of Key Parts on firearms
Abstract
Firearms crucial elements are in repeated impact collision load conditions, such as key parts of the gun body force, recycling automatic machine, hammer, firing pin, pull the shell hook and buffer devices under repeated impact collision load conditions, these part by the impact of surface prone to damage and destruction, when the damage exceeds a certain level, will lead to the failure of these vital elements, thereby affecting the reliability of the firearms system operator may even be a certain danger. Therefore it is necessary for these vital pieces of fatigue strength of impact experiments to test these vital pieces of life This paper designs the special jig and fixture for special fixture .Including the firing pin fixture, jig, fixture, hammer buffer shell, pull hook clamp bolt clamp and so on. Carry out the stress and position analysis of the heavy parts. The three-dimensional structure design .And the strength of the main force of the examination.
Keywords Vital, fixtures, firing pin, hammer, pull the shell hook, buffer device, automatic machine
目 次
1 引言 1
1.1 关于夹具 1
1.2 国内外夹具的发展状况 2
2 击针专用夹具设计 5
2.1 击发机构及击针的介绍 5
2.1.1 击发机构的一般构造和作用 5
2.1.2 击发机构的设计要求 5
2.1.3保证击针强度的一些措施 6
2.1.4常用击针体的形状 6
2.1.5击针在枪机中的定位 7
2.2击针夹具的设计部分 7
2.2.1击针的受力分析 7
2.2.2击针部分专用夹具的初步方案 9
2.2.3 击针部分专用夹具的设计三文图 9
3 击锤夹具设计 13
3.1击锤概述 13
3.1.1击锤与击发机构 13
3.1.2击锤回转式击发机构 13
3.2击锤专用夹具的设计 13
3.2.1击锤工作时的受力分析 13
3.2.2设计击锤夹具的初步方案 14
3.3击锤专用夹具的三文图 14
3.4 主要受力件的强度校核 17
4 缓冲装置夹具 19
4.1缓冲装置概述 19
4.1.1自动机缓冲装置 19
4.1.2弹簧缓冲装置 19
4.1.3衬垫缓冲装置 19
4.1.4液体缓冲装置 19
4.1.5气体缓冲装置 20
4.2缓冲装置夹具的设计 20
4.2.1缓冲装置的受力分析 20
4.2.2缓冲装置部分夹具初步方案 20
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