摘要
振动切削在当今时代的制造业越来越普遍,而振动切削的关键参数刀具振幅又因能量损失而无法避免,为了能保证良好的切削效果,需要知道实际切削过程中的刀具振幅。目前普遍使用激光测振仪测量振动切削的刀具振幅,但设备较为昂贵。为了实现对振动切削刀具振幅经济有效的测量,提出了一种利用加速度传感器测量振动切削刀具振幅的测量方法。利用加速度传感器获得刀具振动方向的加速度,通过傅里叶变换和频域二次积分以及傅里叶反变换,将加速度信号积分为振幅信号。根据实验结果可知,本测量系统的测量误差低于0.8%。
Vibration cutting is becoming more and more common in today’s manufacturing industry,and the key parameter of vibration cutting tool amplitude cannot be avoided due to energy loss.In order to ensure a good cutting effect,it is necessary to know the tool amplitude in the actual cutting process.Currently,laser vibrometers are commonly used to measure the amplitude of vibration cutting tools,but the equipment is relatively expensive.In order to achieve an economical and effective measurement of the amplitude of the vibrating cutting tool,a measurement method using an acceleration sensor to measure the amplitude of the vibrating cutting tool is proposed.The acceleration sensor is used to obtain the acceleration in the vibration direction of the tool,and the acceleration signal is integrated into an amplitude signal through Fourier transform,frequency domain quadratic integration and inverse Fourier transform.According to the experimental results,the measurement error of this measurement sys-tem is less than 0.8%.
作者
于保军
胡锋
郝兆鹏
贾志远
YU Bao-jun;HU Feng;HAO Zhao-peng;JIA Zhi-yuan(Changchun University of Technology,Jilin Changchun 130012,China)
出处
《机械设计与制造》
北大核心
2024年第1期314-317,326,共5页
Machinery Design & Manufacture
基金
吉林省科技厅项目(20180201061GX)
国家自然科学基金(51605043)。
关键词
振动切削
加速度传感器
傅里叶反变换
频域二次积分
振幅测量
Vibration Cutting
Acceleration Sensor
The Inverse Fourier Transform
Frequency Domain Qua-dratic Integration
Amplitude Measurement
