摘要步入二十一世纪以来，以中国为代表的世界新型经济体高速发展，在这些经 济体中，计算机技术、电子技术、数控技术的发展尤为迅猛。数控机床是现代制 造业的关键设备,一个国家数控机床的产量和技术水平在某种程度上就代表这个 国家的制造业水平和竞争力。因此，减轻车床振动提高机床使用效率，具有很高 的实用性69964

本文的主要研究对数控机床振动信号的分析，所以本文主要研究归纳如下： 分析了研究数控机床的振动意义和目的，总结了国内外研究振动测试的情况，介 绍了振动测试的基本原理以及振动测试系统的基本组成，设计试验方案并且组织 试验，进行试验数据采集，获得试验数据并进行数据处理，分析试验数据并获得 相应的结论。阐述了数控机床产生故障的原因及故障信号分析方法。针对数控机 床所产生的故障，提出行之有效的解决方案，尽量避免振动的产生，减小对数控 机床的损害。

毕业论文关键词：振动测试 虚拟仪器 时域分析 频谱分析 信号分析

CNC Machine tool Vibration Test

Abstract Since entering the 21st century, with China as the representative of the  new world economy high speed development, in these economies, computer technology, electronic technology, numerical control technology development is rapid. CNC machine tools is the key equipment of modern manufacturing industry, the yield and technical level of a state of NC machine tools in some degree on behalf  of the country's manufacturing sector and the level of competitiveness. Therefore, to reduce the vibration machine tool and improve the efficiency in the use of machine tool. It has very high practicability

Analysis of the vibration signal of the NC machine tool in this paper, the main research, so the main purpose of this paper is to study the induction is as follows: the analysis of CNC machine tool vibration and the purpose and significance, research vibration test at home and abroad is summarized, and the vibration test of the basic principle and vibration test system of basic composition, design test plan and test, test data acquisition, test data and data processing, analysis of test data and obtain the corresponding conclusion. Expounds the fault reason and fault signal analysis method. Needle log control machine as a result of the failure of CNC machine tools, put forward the effective solutions, try to avoid vibration To produce and reduce the damage to the NC machine tools.

Key words: Vibration test; Virtual Instrument; Time domain analysis Spectrum analysis; Signal analysis

目 录

摘 要 I

Abstract II

目 录 III

1 绪 论 1

1.1 课题的研究背景 1

1.2 机床振动测试的国内外研究现状 2

1.3 课题的研究的意义 5

1.4 课题研究的目标与内容 6

2 振动测试实验系统