Braking performance is one of the most important vehicles, automotive braking system is the most important automotive safety systems, brake is a brake system of the implementing agencies, the performance of a direct impact on car safety.Disc brake drum brake as an alternative product with good thermal stability, and quick reaction, but at the disc brake itself, there are some problems, such as heat recession, brake noise.Therefore, it is necessary to the disc brake detail. This article started from the background disc brakes, disc brakes introduced the basic composition, classification, principle; Secondly, the design of disc brakes, disc brakes completed the structure of choice, the main components of the structural design and performancecalculation, including the disc brake design and parameters of the main components determining the structure, the calculation of braking torque and friction lining block performance computing; then knuckle structural options, and check its strength in different braking;combination of front wheel hub brake design, programming their CNC machining process, through workshop practice, processing, product qualification; finally completed by calculating the disc brake assembly with AutoCAD drawings and parts mapping.
Keywords: disc brake;design;Check;NC Program
目 录
摘 要 - I -
Abstract -II -
目 录 - III-
第一章 绪论 - 1 -
1.1 设计的目的和要求 - 1 -
1.2 设计的背景 - 1 -
1.3 研究的方法 - 2 -
1.4 论文内容概述 - 2 -
第二章 盘式制动器工作原理 - 3 -
2.1 浮动钳盘式制动器工作原理 - 4 -
2.2 固定钳盘式制动器工作原理 - 5 -
第三章 主要零部件结构设计及性能计算 -6 -
3.1 主要零部件结构设计及其参数确定 -6 -
3.1.1 制动盘设计 - 7 -
3.1.2 制动块设计 - 8 -
3.1.3 制动钳设计 - 10 -
3.1.4 转向节设计 - 12 -
3.2 制动器最大制动力矩 - 13 -
3.3 制动器因数 - 15 -
3.4 盘式制动器制动力矩的计算 - 15 -
3.5 摩擦衬块的磨损特性计算 - 17 -
第四章 转向节强度校核 - 20 -
4.1 紧急制动工况下转向节强度计算 - 20 -
4.2 侧滑工况下转向节强度计算 - 20 -
4.3 越过不平路面工况转向节强度计算 - 21 -
第五章 前轮毂数控加工编程 - 22 -
5.1 前轮毂数控加工编程的内容与步骤 - 22 -
5.2 前轮毂加工常用指令代码 - 22 -
5.2.1 准备功能G代码 - 22 -
5.2.2 辅助功能M代码 - 23 -
5.2.3 工件坐标系指令 - 24 -
5.2.4 换刀指令 - 24 -
5.2.5 刀具长度补偿指令 - 24 -
5.3 前轮毂数控加工编程程序 - 25 -
第六章 总 结 - 26 -
参考文献 - 27 -
致 谢 - 28 -
附录I:准备功能G代码功能定义表 - 29 -
附录II:辅助功能M代码及其功能表 - 31 -
附录III:前轮毂数控加工程序 - 33 -