Cutting tool wearing-state detection device based on chaos vibrator and detection method thereof

A technology of tool wear and chaotic oscillators, which is applied in the direction of manufacturing tools, measuring/indicating equipment, metal processing machinery parts, etc., can solve the problems of undetectable periodical mutation noise and other problems

Inactive Publication Date: 2009-02-11
SHANGHAI UNIV OF ENG SCI
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  • Abstract
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Problems solved by technology

[0013] pass figure 1 and figure 2 The comparison shows that there is almost no difference between the FFT spectrum before and after the weak periodic mutation noise is superimposed on the sinusoidal signal f(t), and the weak periodic mutation noise cannot be detected through the FFT spectrum of the sinusoidal signal f(t), while the chaotic oscillator Duffing-Holmes system is very sensitive to weak periodical mutation noise

Method used

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  • Cutting tool wearing-state detection device based on chaos vibrator and detection method thereof
  • Cutting tool wearing-state detection device based on chaos vibrator and detection method thereof
  • Cutting tool wearing-state detection device based on chaos vibrator and detection method thereof

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Embodiment 1

[0048] This embodiment is aimed at 45 # The material of the steel workpiece, solve the system parameter r, determine the threshold value of r, the critical value of r and the effective number of digits determine the degree of tool wear; so that when the worn tool signal wear is embedded in the Duffing-Holmes system, the state of Duffing-Holmes The equation presents a periodic state. When the sharp tool signal sharp is embedded in the Duffing-Holmes system, the state equation of Duffing-Holmes presents a chaotic state, thereby realizing the detection of tool wear.

[0049] pair 45 # Steel material, processing conditions are set, and various processing parameters are shown in Table 1. Under 27 working conditions, experiments are carried out with sharp and worn knives, and 54 sets of signals are collected by sensors and stored in the calculation:

[0050] Table 1: 45 # Processing parameters of steel materials under 27 working conditions

[0051]

[0052] Step 1: Fir...

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Abstract

The invention discloses a wear condition detection device for a cutter and a detection method thereof. The invention is characterized in that the device comprises the following parts: a signal receiving system for receiving the original signal from a work piece and transmitting the signal to a signal processing system, the signal processing system for processing the signal from the signal receiving system, a high speed data collecting card for collecting the processed signal from the signal processing system and transmitting the signal to a computer system for analysis, and the computer system for analyzing the signal. The collection capability of weak signals is improved, simultaneously, complex instrumented detection equipment is not required, the detection cost is reduced, so that the technology has stronger practicability and wider application prospect, therefore, the aim of the invention can be realized.

Description

technical field [0001] The invention relates to a tool wear state detection device and a detection method thereof, in particular to a tool wear state detection device and a detection method based on a chaotic vibrator which uses a chaotic vibrator to detect the wear degree of a tool and realizes quality monitoring of a processed workpiece. Background technique [0002] CNC machining technology is an important field of manufacturing technology today, and the wear of CNC equipment tools directly affects the quality of processed products. Therefore, in the maintenance of CNC equipment, the detection of tools and the regular detection of equipment tool errors and timely correction of pitch, reverse The gap can effectively improve the precision of CNC equipment in the production and processing of products, improve the quality of parts processing, avoid waste products, and greatly improve the utilization rate of CNC equipment. [0003] However, most of the existing detection metho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q17/09
Inventor 宋万清
Owner SHANGHAI UNIV OF ENG SCI
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