摘要：汽车车门系统是汽车整车的重要的组成部分之一，其中汽车车门系统中的重要组成部件汽车车门把手、锁系统更是起着关键性的作用。汽车整车功能和质量在一定程度上取决于汽车车门把手、锁系统的功能和质量的好坏。

汽车零部件生产企业的数量不断增加和广大消费群体对汽车整车性能要求的不断提高，使得汽车零部件生产企业的竞争愈加激烈，除了对汽车门把手、锁的功能提出较高的要求外，汽车门把手、锁系统的耐久性已经成为评价汽车零部件生产企业生产的产品性能的重要指标之一。

在整个设计过程中不断坚持了“三原则”，并且保证在一定检测试验环境下能够平稳的对汽车门把手、锁系统进行耐久性试验，设计了汽车门把手、锁系统耐久性检测试验台的机械结构。论文接着对该设计课题中各个部分所涉及的检测机械工装结构进行了具体的结构设计和强度、刚度和稳定性等方面的校核，同时本论文对整个耐久性检测试验过程进行了详细的介绍。最后论文叙述该设计课题中的设计重点和难点内容，并对机械设计内容进行分析和对设计过程中遇到的问题进行总结。

关键词：车门把手、锁，耐久性，强度

Structural design of durability test bench for passenger car door lock system

Abstract：The automotive door system is one of the most important parts of an automobile. Among them, the automobile door handle system and the lock system play an important role. The function and quality of the vehicle's vehicle depends to a certain extent on the function and quality of the door handle and lock system of the automobile.

The continuous increase in the number of auto parts production companies and the continuous improvement of the performance requirements of the entire consumer groups on the vehicle's complete vehicle make the competition of auto parts manufacturers fiercer, in addition to the higher requirements for the functions of the car door handles and locks. The durability of car door handles and lock systems has become one of the important indicators for evaluating the performance of products produced by auto parts manufacturers.

During the entire design process, the "three principles" were continuously adhered to, and it was ensured that the door handle and lock system could be tested for durability in a certain testing and testing environment. The door handle and lock system durability test bench was designed. Mechanical structure. The paper then carries out specific structural design and verification of strength, stiffness and stability of the testing machine tool structure involved in each part of the design project. At the same time, the paper introduces the entire durability testing test process in detail. Finally, the paper describes the key and difficult points in the design project, and analyzes the design content and summarizes the problems encountered in the design process.

Keywords: door handle, lock, durability, strength

目录

1、绪论 1

1.1 汽车门把手、锁耐久性试验系统开发的背景 1

1.1.1汽车制造产业的发展趋势和现状 1

1.1.2汽车制造产业发展过程中存在的问题与制约因素 3

1.2 汽车门把手、锁系统耐久性试验的意义 4

1.2.1 汽车生产企业开发汽车门把手、锁耐久性试验系统的需要 4

1.2.2 汽车门把手、锁系统生产企业提升核心竞争力的需要 4

1.3 汽车门把手、锁系统耐久性试验的现状与方式 5

1.3.1汽车门把手、锁系统耐久性试验的现状 5

1.3.2汽车门把手、锁系统耐久性试验的方式 5

2、总体方案 7

2.1设计要求 7

2.1.1 硬件部分 7

2.1.2 软件部分 7

2.2设计内容 9

2.3设计的重点内容 9

2.4设计的难点内容 10

3、结构设计与选型计算 11

3.1儿童锁耐久性检测试验机构 11