通过分析机床振动特性和LabVIEW的特点,建立了基于LabVIEW的机床振动信号采集与分析系统总体方案。根据测试信号的特点给出了系统的硬件配置、软件的功能结构,设计了信号采集、信号分析和数据存储3个软件模块,实现对机床振动信号的实时数据采集、时域与频域分析和基于数据记录文件的信号存储。对机床主轴箱振动数据进行了采集与分析,从而验证了系统的正确性。 By analyzing the vibration characteristics of machine tool and the characteristics of LabVIEW, the overall program of vibration signal acquisition and analysis system based on LabVIEW is established. According to the characteristics of the test signal, the hardware configuration of the system and the functional structure of the software are given. Three software modules of signal acquisition, signal analysis and data storage are designed to realize real-time data acquisition, time domain and frequency domain analysis of the vibration signal of the machine tool Signal storage based on data log files. The vibration data of machine tool spindle box were collected and analyzed, which verified the correctness of the system.