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进给速度对车刀三向振动时域特性影响的试验设计

时间:2019-10-10 21:42来源:毕业论文
试验采用济南第一机床生产的CJK6136_MATE_360×570卧式车床、三向加速度传感器、北京波谱数据采集仪以及带有Vib’SYS振动信号处理分析软件的计算机来研究进给速度对车刀三向振动时域特

【摘要】工件在生产中常常伴随着车削振动,这种振动是由于刀具和工件的相对运动而产生的,影响着工件的加工过程,是非常有害的一种现象。因此解决振动问题是现今人们的重要任务。本试验在机电学院数控机床实验室进行试验。试验采用济南第一机床生产的CJK6136_MATE_360×570卧式车床、三向加速度传感器、北京波谱数据采集仪以及带有Vib’SYS振动信号处理分析软件计算机研究进给速度对车刀三向振动时域特性影响。试验得出振动信号的极值、均值、均方根等数值,从而对时域进行分析。经过最后的数据分析,在同一磨损刀具下,随着进给速度的增大,振动的最大值和均方根先增大后减小,最小值和均值先减小后增大;在同一进给速度下,轻度磨损刀具振动加速度的绝对值小于中度磨损刀具的,并且变化更加稳定。39797
毕业论文关键词】进给速度;车削振动;时域特征;试验研究
 Feed speed of test design tool three to the influence of vibration characteristics in time domain
【Abstract】With the development of science and technology,the social demand of the workpiece is gradually increased,but the production of the workpiece is often accompanied by turning vibration. This vibration is due to the relative motion of the tool and workpiece and production, affecting the machining process, is a kind of very harmful phenomenon. Turning vibration, affects the surface quality of the products. The workpiece surface will appear vibration lines, decrease surface lubrication. The tool in strong vibration, can easily lead to tipping problem. These problems lead to vibration, seriously affecting the high precision of workpiece surface. At the same time, vibration will affect the lathe and cutter using time. This is because the vibration is greatly improved and the friction of lathe tool, serious damage to the surface quality of lathe and cutter. In addition to these problems, vibration will affect people's physical and mental health. In the process of the workpiece machining, vibration noise, noise pollution, constantly does not affects the staff around, not only reduce the their enthusiasm for work, but also endanger their health. Therefore, to solve the problem of vibration is an important task of today's people.This paper describes the turning process, study the influence of feeding speed on the vibration of the tool. This experiment used CJK6136_MATE_360 * 570 horizontal lathe, three acceleration sensors, data acquisition instrument and Beijing pop with Vib 'SYS vibration signal processing and analysis software of computer. The equivalent extreme value, mean value, root mean square value of test results of the vibration signal, and to analyze the time domain 源`自<六:维*论-文>网/www.lwfree.cn
【Keywords】Feed speed;Turning vibration;Time domain features;Experimental study
目录
摘要    1
1 绪论    2
1.1 课题研究意义    2
1.2 车削振动的研究现状    2
1.3 课题研究内容    4
1.4 研究方法和技术路线    5
2 机械振动测量理论基础    7
2.1 机械振动基本原理    7
2.2 振动问题的分类及研究途径    7
2.3 振动测量传感器    9
2.4 机械振动测试技术    12
2.5 机械振动的测量方法和测量内容    13
3 车削振动信号时域分析方法    15
3.1 振动信号    15
3.2 时域分析    18
3.3 数据采集    20
4 车削振动实验以及数据处理分析    24
4.1试验仪器    24
4.2实验目的    25
4.3试验方案    25
4.4试验步骤    27 进给速度对车刀三向振动时域特性影响的试验设计:http://www.lwfree.cn/jixie/20191010/40477.html
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