【摘要】刀具的振动往往会影响加工工件的表面加工质量和加工效率。如果不能很好的解决车削振动的影响，会造成不必要的损失，甚至会危害到操作工人的生命安全。本文主要对车削尼龙材料时刀具三向振动进行了探讨，设计了三种试验方案：（1）给定其他车削参数，改变车削深度，分析刀具三向振动随车削深度的变化规律；（2）给定其他车削参数，改变进给速度，分析刀具三向振动随进给速度的变化规律；（3）给定其他车削参数，改变主轴转速，分析刀具三向振动随主轴转速的变化规律。通过频域分析，得到刀具各向振动信号的最大自功率谱值及相应的频率。研究表明：（1）改变车削深度时，X向、Y向自功率谱值有少许波动，Z向自功率谱值随车削深度的增加而变大；（2）改变进给速度时，X向自功率谱值随着进给速度的增加而变小，Y向、Z向自功率谱值随进给速度的增加而变大；（3）改变主轴转速时，X向、Y向、Z向的自功率谱值均随着主轴转速的增加而变大。39968
【毕业论文关键词】车削振动；尼龙材料；三向振动；频域分析；试验研究
Experimental Design on Three-dimensional Vibration Test of the Tool when Turning Nylon Material
【Abstract】Tool vibration tends to affect the surface finish quality and efficiency of workpiece.If you can not solve the impact of turning vibrations, it will cause unnecessary losses and endanger the safety of workers.This paper focuses on three-dimensional vibration response of the tool when turning nylon material.We designed three pilot programs(1)To ensure the other turning parameters constant, changing the turning depth, three-dimensional vibration analysis tool turning variation with the cutting depth;(2)To ensure the other turning parameters constant, changing the rate feed,three-dimensional vibration analysis tool turning variation with the rate feed;(3)To ensure the other turning parameters constant, changing the spindle speed, three-dimensional vibration analysis tool turning variation with the spindle speed.Frequency domain analysis, the tool each maximum value from the power spectrum of the vibration signal and the corresponding frequency.The study shows:(1)When changing the turning depth,the auti-power spectrum has a little fluctuation in X direction and Y direction and the auto-power value becomes larger with the lager turning deep in Z direction.(2)When changing the rate feed,the auto-power value becomes smaller with the lager rate feed in X direction and it becomes larger with the lager rate feed in Y direction and Z direction.(3)When changing the spindle speed,the auto-power value becomes larger with the lager spindle speed in X direction, Y direction and Z direction.
【Keyword】Turning vibration;Nylon material;Three-vibration;Frequency domain analysis;
Experimental Research
目录
摘要 1
前言 2
1 绪论 3
1.1研究意义 3
1.2研究现状和研究内容 3
1.3研究方法和技术路线 7
1.3.1研究方法 7
1.3.2技术路线 7
2 试验测试技术基础 9
2.1传感器的分类以及选取 9
2.2实验设备的选取 13
2.2.1.DH5901手持式动态信号测试分析仪 13
2.2.2 HS5670型多通道噪声/振动分析仪 16
2.2.3.亚泰多通道振动分析仪 16
2.2.4.QLVC-ZSA1型振动分析仪 17
3 尼龙材料车削振动试验 19
3.1实验设备 19
3.2实验方案 21
3.3实验步骤 22
4 试验数据分析 30
4.1 切削深度对刀具三向振动的影响 30 车削尼龙材料时刀具三向振动测试试验设计:http://www.youerw.com/jixie/lunwen_40703.html