车削尼龙材料时刀具表面振动特性测试的试验设计
毕业论文关键词：车削；刀具；表面振动；自功率谱密度
The Design of Vibration Test Tool Surface Properties of Nylon Material when Turning
Abstract: This design is to study the vibration characteristics of the cutting tool surface when cutting nylon material. The use of pressure electric acceleration, QLVC-ZSA1 types of vibration analyzer and CNC lathes, from the feed rate, spindle speed and depth of cut three different aspects to study these factors on the tool surface vibration. The results of the study show that: (1) When the spindle speed, tool maximum surface self power spectrum values to rise steadily, and surface maximum auto power spectrum increased at first, when the diameter of the nylon reached 15mm began to decline. And the maximum self power spectral value of the upper surface is obviously higher than the lower surface, so the surface of the upper surface is more violent than the lower surface. (2) The greater the feed rate, the greater the maximum self power spectrum. The maximum self power spectrum of the upper surface is also greater than the maximum of the maximum self power spectrum of the lower surface. Thus, the vibration energy of the upper surface is greater than the lower surface. (3) When the depth of cutting is increased, the variation of the surface vibration amplitude of the cutter is more than that of the lower surface.
目录
摘要 1
前 言 2
1 绪论 3
1.1 课题综述及研究意义 3
1.2 研究现状 3
1.3 研究方法和技术路线 6
1.3.1研究方法 6
1.3.2技术路线 6
2 振动理论及测试方法 7
2.1振动的分类 7
2.2振动测试的分类 8
2.3振动测试传感器的选择 8
2.4测试仪器的选择 13
2.5信号分析的基本知识 14
2.5.1信号的分类 14
2.5.2信号处理基础 15
2.5.3信号分析方法 16
3 车削振动试验 18
3.1试验仪器的选择 18
3.2试验方案 20
3.3试验步骤 20
4 试验数据处理及分析 22
4.1不同主轴转速时刀具的振动响应分析 22
4.2 不同进给速度下刀具的振动响应 26
4.3不同车削深度下刀具的振动响应 30
5 结论 33
参考文献 34
车削尼龙材料时刀具表面振动特性测试的试验设计前 言
本次设计我主要是研究在切削振动下刀具的振动情况，在设计方案之前我通过图书馆、知网等各种途径寻找有用的资源，来为后续的试验打好基础。在试验之前，我认真阅读并总结了有关该课题的研究现状，从而对设计的意义有了一定的了解，对于振动和测试基础等方面有了一定的掌握。
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