摘要

本设计介绍了犁刀变速齿轮箱体多轴箱的设计，其中包含了零件加工工艺的确定，设计中首先要了解工件的加工工艺路线及工序的计算，确定攻螺纹主轴的直径，初步选用电机型号及机床各部分部件。编制三图一卡（被加工零件工序图，加工示意图，机床联系尺寸图，机床生产率计算卡）。在多轴箱设计中，确定传动系统，计算主轴坐标，传动部件的校核及主轴箱的总图绘制。

本设计将钻孔、攻丝两工艺结合为一体，降低了机器成本，而且节省了加工时间，提高了工作生产效率。

关键词： 齿轮箱体 组合机床 总体设计 攻丝多轴箱

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Abstract

The design on the Lidao Biansuchilun Box axlebox more than the design, which includes parts of the processing technology of identification, design is first necessary to understand the workpiece in the processing line and process of calculation to determine Tapping the spindle diameter, the initial choice of motor Model and some parts of the machine. Figure 1 of the three cards (the processing parts process map, diagram processing, machine tools Contact size map, machine tool productivity calculation card). In multi-axle box design, drive system established to calculate coordinates spindle, transmission parts of the spindle box and check the total mapping.

This design will be drilling, tapping combination of the two as one and reduce the cost of machinery, processing and save time, improve the work efficiency of production.

Key words: Gear Box The Combination of Machine Tools Design multi-axle Box Tapping

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目录

摘要 ........................................................................................................................ I Abstract ................................................................................................................ II 第一章 组合机床概述 ......................................................................................... 1 第二章 犁刀变速齿轮箱体工艺分析 ................................................................. 5

2.1 被加工零件的功用 ..................................................................................................... 5

2.2 编制工艺规程及分析 ............................................................................................... 5

2.2.1 被加工零件的技术要求 .................................................................................. 5 2.2.2 计算生产纲领 .................................................................................................. 5 2.2.3 毛坯的选用 ...................................................................................................... 6 2.3 零件加工工艺路线的拟定 ......................................................................................... 7

2.3.1 工件定位 .......................................................................................................... 7 2.3.2 定位基准的选择 .............................................................................................. 8 2.3.3 工序的集中和分散 .......................................................................................... 8 2.3.4 加工工序的设计 .............................................................................................. 9 2.3.5 热处理的安排 .................................................................................................. 9 2.3.6 初步拟定工艺规程 .......................................................................................... 9 2.4 攻丝切削用量的选择 ............................................................................................... 10

第三章 钻孔、攻丝组合机床的结构设计 ................................................................ 11

3.1 组合机床的配置形式的选择 ................................................................................... 11 3.2 动力部件的选择 ....................................................................................................... 11 3.3 通用部件选择 ........................................................................................................... 12

3.3.1 主轴箱的轮廓尺寸的确定 ............................................................................ 12 3.3.3 侧底座 ............................................................................................................ 13 3.3.4 中间底座 ........................................................................................................ 14 3.3.5 动力部件工作行程及循环的确定 ................................................................ 14 3.3.7 初步确定装料高度 ........................................................................................ 15

第四章 绘制“三图一卡” ............................................................................................ 16

4.1 绘制被加工零件工序图 ........................................................................................... 16 4.2 绘制被加工零件加工示意图 ................................................................................... 16 4.3 机床联系尺寸图的绘制 ........................................................................................... 18 4.4 专用机床生产率计算卡的编制 ............................................................................... 18

4.4.1 生产率的计算 ................................................................................................ 18 4.4.2 编写生产率计算卡 ........................................................................................ 20

第五章 组合机床攻螺纹多轴箱设计 .......................................................................... 21

5.1 攻螺纹概述 ............................................................................................................... 21

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5.2.1 内容及注意事项 ............................................................................................ 21 5.2.2 主轴外伸尺寸及切削用量 ............................................................................ 22 5.3 主轴齿轮的确定及计算 发 ..................................................................................... 22

5.3.1 主轴形式和直径，齿轮模数的确定 ............................................................ 22 5.3.2 多轴箱所需动力计算 .................................................................................... 23 5.4 多轴箱的传动设计 ................................................................................................... 24

5.4.1 对多轴箱的传动系统的一般要求 ................................................................ 25 5.4.2 拟订多轴箱传动系统的方法 ........................................................................ 25 5.5 主轴、传动轴坐标计算 ........................................................................................... 28

5.5.1加工基准坐标系xoy，计算主轴驱动轴坐标 .............................................. 28 5.5.2 验算中心误差 ................................................................................................ 30 5.5.3制坐标检查图 ................................................................................................. 31 5.6 对传动零件进行校核 ............................................................................................... 32

5.6.1 轴的挍核 ........................................................................................................ 32 5.6.2 齿轮的挍核 .................................................................................................... 33 5.7 攻螺纹装置的设计 ................................................................................................... 35

5.7.1 攻螺纹靠模机构及卡头 ................................................................................ 35 5.7.2 攻螺纹装置 .................................................................................................... 35 5.7.3 攻螺纹行程的控制 ........................................................................................ 36 5.8 多轴箱总图及零件图的绘制 ................................................................................... 37

5.8.1 主视图 ............................................................................................................ 37 5.8.2 展开图 ............................................................................................................ 37 5.9 多轴箱技术条件 ....................................................................................................... 38

第六章 结论 ........................................................................................................................ 40 参考文献 ............................................................................................................................... 41 附录 ......................................................................................................................................... 42 致谢 ......................................................................................................................................... 43

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