摘 要
在普通机床上加工方头轴类零件，工作效率低、劳动强度大。当其零件有一定的批量要求时，其生产就显得力不从心了，为此设计了专用设备。车方机床用曲率半径很大的椭圆短半轴曲线代替直线切削方形工件。生产率高,刀具成本低。选取适当的车头行星轮的分度圆直径,可以有效地控制车方原理的直线 度误差。对实际工件进行了原理误差的分析计算和行星轮系的设计计算。
本组合机床是针对单面双工位卧式车削的组合机床，在完成组合机床总体设计的基础上，主要完成液压系统及滑台的设计。在设计过程中借鉴了国内一些现有组合机床的设计资料，结合被加工零件的结构特征，在指导老师的帮助下设计而成。进给部分采用液压滑台形式，主要是因为液压系统具有工作比较平稳，反应快、冲击小，能高速启动、制动和换向；能在运动过程中实现无级调速，调速方便，而且调速性能好；控制、调节比较简单，操纵比较方便，易于实现自动化，如与电气控制相配合，可方便地实现复杂的程序动作和远程控制等优点。
关键词: 车方 行星轮系 椭圆 方形 直线度 液压
Abstract
Process the square shaft parts on the common machine tool, inefficient and labor-intensive. When a certain amount for their parts, their production becomes unable, for the design of specialized equipment. It illustrates a ellipse’s short semi - axial curved line with great cured radius , that can replace the straight line for cutting square work - pieces on the machine tool. The productivity of this rebuilt machine tool is higher and the cost of cutter is lower. The principle straightness error of cutting square in work - pieces can be controlled by choosing a suitable pitch diameter of the planetary gear in the machine tools. Analytic calculations of the error and design of this train have been given for a real work -piece.
This combination machine tools against unilateral double spaces horizontal turning combination machine tools, machine tool design in complete portfolio basis, the completion of the main hydraulic system and further Sliding workstations design. In the design process for some of the existing portfolio of domestic machine tool design data, the structural characteristics of the processed parts, with the help of teachers in guiding the design by. To the use of hydraulic slide into some form of Sliding workstations, mainly because of a hydraulic system work more stable, responsive, small shocks can speed up, brake and invert; And it can achieve infinitely variable speed control during the movement, speed control convenient, and the speed control performance is good; Controlling and regulating simpler, more convenient to manipulate, easy to automate, if compatible with the electrical control can easily achieve complex procedures, such as remote-control movements and strengths.
Key words : Square Cutting Planetary Gear Train Ellipse Square Straightness Hydraulic
前 言 1
1.组合机床设计概述 3
1.1组合机床及其特点 3
1.2组合机床设计步骤 3
2.制定机床设计方案 5
2.1设计任务 5
2.2机床总体设计的依据 5
2.2.1概述 5
2.2.2机床的总体布局 6
2.2.3.工件及工艺分析 7
2.3工件加工原理 8
2.4车方主轴头结构 9
2.5行星轮计算及原理误差分析 10
3.组合机床配置型式的选择 13
3.1组合机床的配置型式 13
3.2组合机床的支承部件 14
3.2.1组合机床支承部件的作用 14
3.2.2支承件的结构设计 15
3.2.3组合机床卧式床身设计 17
3.3机床联系尺寸图 17
3.3.1机床联系尺寸图的绘制 17
3.3.2 绘制机床联系尺寸图应考虑的问题 18
4.动力部件的选择 21
4.1切削力的计算及刀具的选择 21
4.2电动机的选择 21
5主轴箱及传动件的设计 24
5.1主轴箱的用途及设计程序与方法 24
5.1.1主轴箱的用途 24
5.1.2主轴箱的设计程序与方法 24
5.2动力部分的选择 25
5.3行星轮系齿轮设计 26
选取齿轮材料40Cr,硬齿面，齿宽B=25mm。 26
5.3.1行星轮系传动比计算 26
5.3.2行星轮系的机构运动分析 27
5.4齿轮Z1、Z2设计计算及校核 28
5.4.1求传动比i12 28
5.4.2选定齿轮类型、精度等级、材料及齿数 28
5.4.3按齿面接触强度设计 28
5.5轴的结构设计 33
5.5.1曲轴主体部分的结构设计 33
5.5.2装配式曲轴 37
5.5.3主轴的结构设计 38
5.6主轴箱箱体的结构设计 42
5旋转盘的设计 43
6.刀具的安装和调整 44
总 结 45
致 谢 46
参考文献 47
日期：2021-05-16
作品编号：001
价格：
人气热度：1291 ℃
