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A multi-sensor fusion turning tool state monitoring method and system

A multi-sensor fusion, turning tool technology, applied in turning equipment, tool holder accessories, measuring/indicating equipment and other directions, can solve the problem of not being able to comprehensively and accurately reflect the tool wear feature information, to broaden the scope of monitoring and prevent waste. , The effect of improving the efficiency of tool utilization

Active Publication Date: 2021-04-16
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology

[0006] The purpose of the present invention is: to solve the problem in the prior art that only one sensor monitoring cannot comprehensively and accurately reflect the characteristic information of tool wear, the present invention provides a multi-sensor fusion turning tool state monitoring method

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  • A multi-sensor fusion turning tool state monitoring method and system
  • A multi-sensor fusion turning tool state monitoring method and system
  • A multi-sensor fusion turning tool state monitoring method and system

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Embodiment Construction

[0056] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0057] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The invention provides a multi-sensor fusion turning tool state monitoring method and system, which relates to the technical field of turning tool state monitoring, and includes the following steps: collecting acoustic emission signals and current signals during the working process of turning tools; analyzing the acoustic emission signals and current signals After feature extraction, normalization processing is performed; the normalized data is input into the neural network model for result identification; in the above steps, after the steps of collecting acoustic emission signals and current signals, the step of determining the limit wear of the turning tool is also included, The turning tool limit wear judgment and feature extraction are carried out in parallel; the turning tool limit wear judgment method is as follows: in the light load area, through the acoustic emission signal judgment; in the medium load area, through the acoustic emission signal and current signal cooperative judgment; The load area is judged by the current signal. The invention combines the acoustic emission signal and the current signal to monitor the tool wear state, thus widening the monitoring range and improving the success rate of monitoring precision discrimination.

Description

technical field [0001] The invention relates to the technical field of turning tool state monitoring, in particular to a method and system for multi-sensor fusion state monitoring of turning tools. Background technique [0002] In the manufacturing industry, in order to ensure the safety and processing quality of automatic processing equipment, it is urgent to solve the monitoring problem in the processing process. Tool status change is one of the most common faults in the machining process. Tool wear, breakage and edge chipping are some of the more common tool state changes. These changes will affect the dimensional accuracy and surface processing quality of the workpiece, and even endanger the safety of machine tools, workpieces and personnel. In order to reduce or even avoid this series of problems, it is necessary to monitor the tool wear status in the process of processing in real time. Tool condition monitoring technology is based on modern sensor technology, signal p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q17/09
CPCB23B25/06B23Q17/09
Inventor 郭亮李懿高宏力董勋宋虹亮秦奥苹
Owner SOUTHWEST JIAOTONG UNIV
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