滚珠丝杠副轴向静刚度测试台机械结构设计
机床来说，滚珠丝杠副的轴向静刚度是保证定位精度的关键因素之一。然而，目
前滚珠丝杠副轴向静刚度的计算只局限于理论计算上。5734
为了精确获得滚珠丝杠副得出轴向静刚度，验证相关理论公式的准确性，本
次毕业设计设计了一台用于检测滚珠丝杠副轴向静刚度的测试台。首先设计了立
式和卧式两种测试台方案，在比较其优缺点后最终选择了卧式方案；然后针对卧
式方案建立了三文立体模型；接着分别对动力部分、加载部分、力传感器部分以
及位移传感器部分进行了选型，对关键的受力元件进行了强度校核；最后画出了
总体装配图以及关键零件的零件图。5734
关键词 滚珠丝杠副 轴向静刚度 测试台 机械结构设计
毕业设计说明书（论文）外文摘要
Title Structure Design of Axial Static Stiffness Test Machine for Ball Screw
Abstract
The static axial rigidity of ball screw reflects the ability to resist
deformation. For all types of NC machine tool, the static axial stiffness
of the ball screw is one of the key factors to ensure the positioning
precision. However, The axial static stiffness of ball screw is confined
to theoretical calculation.
In order to obtain ball screw axial static stiffness and verify the accuracy
of the oretical formula, A testing bench for the detection of ball screw’s
axial stiffness is designed. First of all, Two test bench which are vertical
and horizontal are designed. And the horizontal one is chosen after the
comparison of the advantages and disadvantages of the two plan. Then the
three-dimensional model is established according to the horizontal plan .
After that the power part, loading part, force sensor and displacement are
selected and the key force element’s strength is checked. At last, The
overall assembly drawing and parts drawing of the key parts are drawn.
Keywords Ball screw Axial static stiffness Test machine Structure design
目 录
1 绪论. 1
1.1 课题的研究背景以及课题来源 .. 1
1.1.1 课题的研究背景 . 1
1.1.2 课题的来源 .. 1
1.2 滚珠丝杠副的工作原理、结构特点及分类 . 2
1.2.1 滚珠丝杠副的工作原理[5]
2
1.2.2 滚珠丝杠副的结构特点 . 3
1.2.3 滚珠丝杠副的分类 .. 4
1.3 国内外研究现状 .. 4
1.4 本章小结 .. 6
2 滚珠丝杠副轴向静刚度测试台机械结构的方案设计及比较 7
2.1 滚珠丝杠副轴向静刚度测试台方案设计 7
2.1.1 滚珠丝杠副轴向静刚度立式测试台 7
2.1.2 滚珠丝杠副轴向静刚度卧式测试台 8
2.2 滚珠丝杠副轴向静刚度测试台方案比较 .. 10
2.3 本章小结 . 11
3 卧式测试台主要部件的设计、选型及安装方式 12
3.1 被测对象的分析 . 12
3.2 电机、减速机 13
3.2.1 电机、减速机的选型 .. 13
3.2.2 电机、减速机的安装方式 . 15
3.3 加载丝杠 . 15