CA6140车床主轴箱的设计(含CAD装配图)(任务书,设计说明书13000字,CAD图纸5张)
摘要
主轴箱在整个机床中属于相对重要部件，通过其内部的齿轮传动可以实现多级变速,从而人们需要的速度可以从最后传到主轴的速度的到。通常主轴箱传动系统的性能直接影响机床的性能。
本设计介绍普通机床中CA6140主轴的设计过程，文章先简要介绍了车床的发展历史和现状，分析了主轴箱中各个重要部件结构原理和其在做主轴箱里的作用。详细介绍了CA6140里的齿轮、轴、主轴和轴承等零件的整个设计过程。具体内容包括选取满足要求相应的功率电机和各个零件的整体结构设计，其中包括材料的定选尺寸的合理安排以及加工需求。对于轴和齿轮零件运用的有关公式，进行合理的分析对相对较危险的部位进行作图、计算和查表，进行各种校核。最终对各个零部件进行参数拟定、传动设计、传动件的估算和验算、各部件结构设计，绘制零件图和装配图。
CA6140机床是典型的车削加工机床，其中主轴箱是机床组成的核心部件，主轴箱的作用是将电动机的运动传递到主轴上，实现车削回转运动。本次论文设计主要包括传动方案及传动系统图的拟定，包含转速的设计、结构式的确定及工艺范围；各轴传递功率及力矩的计算；主要部件的设计及校核；主轴箱的主要部件主要包括箱体、传动轴、齿轮及带轮。最终确定主轴箱的整体结构设计。
关键词： 主轴箱； 结构设计； 轴
Abstract
Throughout the machine tool spindle box is a relatively important component through its internal gears can achieve multi-speed, the speed of which people need to be reached from the last to the spindle speed. Typically headstock drive performance directly affects the performance of the machine.
This design introduces ordinary machine tool spindle CA6140 design process, the article briefly describes the history and current status of the lathe analyzed headstock various important parts of the structure principle and its role in doing the spindle box. Details of the CA6140 in the gears, shafts, spindles and bearings and other parts of the entire design process. Specific content includes selected meet the requirements of the corresponding power motors and various parts of the overall structural design, including materials, given the reasonable arrangement and size selection processing needs. For shaft and gear parts using the relevant formula, a reasonable analysis relatively dangerous parts of the mapping, calculation and look-up table, a variety of checking. Parameters for the various parts of the final formulation, transmission design, transmission parts estimating and checking each component structural design, drawing parts and assembly drawings.
CA6140 lathe is a typical turning processing machine tools, including spindle box is core
component of machine tool, is the role of the spindle box is passed on to the main spindle motor movement, turning rotary movement. This paper mainly includes the transmission scheme and system design of proposed, including the design of the speed, the determination of structural formula and process; The calculation of each shaft transmission power and torque. The design of main parts and check; A major part of the spindle box mainly includes box, transmission shaft, gear and pulleys. Eventually determine the overall structure of the spindle box design.
Keywords: Headstock; structural design; axis
目 录
第一章绪论 1
1.1 普通车床发展史 1
1.2 发展趋势 3
第二章CA6140主轴箱工作原理 4
2.1机床的结构 4
2.2 主轴箱的主要构造 6
第三章传动方案拟定和总体布局 9
3.1 变速组和传动副数的确定 9
3.2 传动比的分配 10
第四章各个零部件的选定 12
4.1 确定主轴的极限转速 12
4.2 电机的选择 12
4.2.1 计算转速范围和定公比并选出各级转速 12
4.2.2 电机选择 13
4.3 带轮直径和齿轮齿数的确定 13
4.3.1 确定皮带轮直径 13
4.3.2 齿轮齿数的确定 14
4.3.3 计算各轴传动的功率 17
4.4 主轴箱的传动系统 18
第五章各零部件校核验算 19
5.1 各轴验算转速误差 19
5.2 V带的设计校核 19
5.3 I轴上的零部件设计 21
5.3.1 I轴上的齿轮设计 21
5.3.2 I轴的设计校核 25
5.3.3 轴承的校核和键的选择 27
5.5 II轴上的齿轮设计 29
5.5.1 II轴上的齿轮设计 29
5.5.2 II轴选轴、键和轴承的选择 33
5.6 III轴上的个部件设计 34
5.6.1 III轴上的齿轮设计 34
5.6.2 III轴选轴、键和轴承的选择 38
5.7 IV轴主轴的选取 39
5.8主轴箱的装配图及箱体的设计 41
结论 43
参考文献 44
致谢 45
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