传动齿轮轴的加工工艺设计说明书

摘要

齿轮轴零件的主要作用是支撑回转零件、实现回转运动并传递转矩和动力。齿轮轴具备传动效率高、结构紧凑和使用寿命长等一系列优点，是通用机械特别是工程机械传动中的重要零件之一。齿轮轴加工材料、热处理方式、机械加工工艺过程的优化，将对提高齿轮轴的加工质量及寿命有着重要借鉴意义。

本设计首先分析了齿轮轴零件的作用和零件的材料，之后把加工传动齿轮轴所用的材料和生产类型确定下来。然后确定毛坯的种类，绘制铸件零件图。接下来设计零件的加工工艺性，包括零件表面的加工方法及热处理方法等。最后进行工艺规程设计，选定加工所用的机床，刀具，夹具等。齿轮轴零件的机械综合性能要求较高，一般选择锻件作为毛坯。合理安排工艺路线，划分加工阶段对保证零件加工质量至关重要.

关键词: 齿轮轴；工艺分析；工艺规程设计

Abstract

The main function of the gear shaft is to support rotating parts, achieve rotary mo tion and transfer torque and power. Gear shaft has a series of advantages, such as high transmission efficiency, compact structure, long service life and so on. It is one of the important parts in the general machinery, particularly the engineering machinery tran smission. The optimization of the gear shaft’s machining materials, thermal treatment method and machining process will have great significance on the machining quality of the gear shaft and the service life.

The first design of the gear shaft parts and parts of the material, then fix the processing gear shaft of the materials used and the type of production. And then determine the blank type, drawing casting parts diagram. The processing of the next design of parts, including the components surface processing method and heat treatment method. Finally, technological process design ,selection of the machine tool, cutting tool, fixture etc…Comprehensive mechanical performance requirements higher gear shaft parts, as general forging blank. Reasonable arrangements for the process, dividing the processing stage is very important to ensure the machining quality of parts.

Keywords gear shaft; process analysis; process planning design

目录

摘要.............................................................................................................................I ABSTRACT ...................................................................................................................... II 第1章绪论............................................................................................................. - 1 -第2章零件的分析 (2)

2.1零件的作用 (2)

2.1.1零件的作用 (2)

2.1.2零件的结构特点及技术要求 (2)

2.2零件材料分析 (3)

2.3确定生产类型 (3)

2.4毛坯的确定 (4)

2.5绘制铸件零件图 (4)

2.6本章小节 (5)

第3章加工工艺过程分析 (5)

3.1加工工艺过程的组成 (6)

3.2定位基准的选择原则 (6)

3.2.1基准的概念 (6)

3.2.2 定位基准的选择 (7)

3.2.3 定位基准的确定 (8)

3.3零件表面加工方法的选择 (10)

3.4加工工序安排 (10)

3.5热处理工序的安排 (11)

3.6工序的划分 (11)

3.7加工余量及工序尺寸的确定 (12)

3.7.1 加工余量的概念 (12)

3.7.2 加工余量的确定方法 (12)

3.8本章小结 (13)

第4章选择加工设备及工艺设备 (14)

4.1各机床的作用 (14)

4.1.1车床的作用 (14)

4.1.2铣床的作用 (15)

4.1.3 磨床的作用 (16)

4.1.4 零件加工中各机床的确定 (17)

4.2刀具的选择 (17)

4.2.1 刀具材料的确定 (17)

4.2.2 刀具的分类 (17)

4.2.3 常用车刀刀具的用途 (18)

4.2.4 铣刀 (19)

4.2.5 磨削 (20)

4.2.6 加工零件刀具的确定 (20)