航空学报 > 1991, Vol. 12 Issue (8): 422-427

车刀破损时刀杆振动信号特征的研究

沈小明, 姜澄宇, 张幼桢   

  1. 南京航空学院
  • 收稿日期:1989-08-23 修回日期:1990-05-17 出版日期:1991-08-25 发布日期:1991-08-25

A STUDY ON SIGNAL CHARACTERISTICS OF TOOL SHANK VIBRATION DURING TURNING TOOL BREAKAGE

Shen Xiaoming, Jiang Chengyu, Zhang Youzhen   

  1. Nanjing Aeronautical Institute
  • Received:1989-08-23 Revised:1990-05-17 Online:1991-08-25 Published:1991-08-25

摘要: 实验发现,车刀破损时低频率范围内时域信号的变化总是很明显,而宽频率范围内时域信号的变化则不一定明显。本文提出用低频率范围内时域信号的变化来监测车刀破损,经验证,可在20ms内检测出刀具的破损。

关键词: 刀具破损, 振动, 在线监测, 车削

Abstract: It has been found from experiments that during turning tool breakage, the variation of the vibration signal in time domain in lower frequency range is remarkable, however, in wider frequency range it is not so significant.In this paper, a method to monitor turning tool breakage by the use of the variation of the time domain signal in lower frequency range is proposed. It is verified that the turning tool breakage can be detected within 20 milliseconds by this method.

Key words: tool breakage, vibration, in-process monitoring, turning