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System for monitoring working state of boring rod in real time

A real-time monitoring system and working state technology, applied in manufacturing tools, metal processing equipment, measuring/indicating equipment, etc., can solve the problems of measuring vibration signals of boring tools, inability to use, etc., to overcome wiring difficulties, fast response speed, Strong anti-interference ability

Inactive Publication Date: 2013-11-27
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the boring bar is in a rotating state during the working process, it is impossible to use the traditional wired detection method to measure the vibration signal at the boring tool

Method used

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  • System for monitoring working state of boring rod in real time
  • System for monitoring working state of boring rod in real time
  • System for monitoring working state of boring rod in real time

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Embodiment Construction

[0026] With reference to accompanying drawing, further illustrate the present invention:

[0027] The real-time monitoring system of the working state of the boring bar includes a signal detection device fixed at the end of the boring bar for monitoring the vibration signal of the boring bar, a host computer for analyzing and processing the monitored vibration signal, and a connection between the signal detection device and the host computer. Intermediate station for inter-communication;

[0028] The control command sent by the upper computer is transmitted to the intermediate station, and the intermediate station sends the control command to the signal detection device through wireless communication, and receives the vibration signal sent by the signal detection device; the signal detection device sends the detected vibration signal through wireless communication To the intermediate station, the vibration signal is sent from the intermediate station to the host computer throu...

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Abstract

The invention relates to a system for monitoring the working state of a boring rod in real time. The system comprises a signal detection device, an upper computer and an intermediate station, wherein the upper computer analyzes and processes a vibration signal by a method comprising the following steps of: establishing an eigenvector for each group of historical vibration signal; constructing a learning sample by using each group of eigenvector and the corresponding state information as an input parameter and an output parameter; selecting a kernel function, inputting a training sample into a support vector machine (SVM), and performing sample training to obtain an SVM-based classification model; calculating an eigenvector of a real-time vibration signal, inputting the eigenvector into the classification model, performing pattern recognition, and judging whether the boring rod is in a stable state or a flutter state currently; and adding a sample which is to be recognized and is used as a new learning sample to the SVM to improve the recognition capability of the classification model. The system has the advantages of high response speed and high antijamming capability and is convenient to install.

Description

technical field [0001] The invention relates to a real-time monitoring system for the working state of a boring bar. Background technique [0002] The current machinery manufacturing technology continues to develop, precision and ultra-precision machining has become an important part of modern machinery manufacturing. Horizontal boring machine is a kind of precision machining, mainly used for machining high-precision holes or finishing multiple holes in one positioning. The boring bar is a cantilever beam structure. During the boring process, self-excited vibrations are easily generated between the boring tool at the free end and the workpiece, which will destroy the stability of the machining process, resulting in a sharp deterioration of the surface quality of the workpiece, reducing tool life, and affecting machining efficiency. . Therefore, it is very important to monitor the working state of the boring bar in real time. However, since the boring bar is in a rotating ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q17/12
Inventor 曹衍龙管佳燕李结冻姜胜利魏明哲尹海徐朋陈小龙何元峰张恒沈海云李博杨将新
Owner ZHEJIANG UNIV
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