A multi-agent-based early warning method for machining process in NC machining flexible manufacturing system

A flexible manufacturing system and processing process technology, applied in general control systems, control/regulation systems, program control, etc., can solve problems such as high processing precision, affecting the production and delivery schedule of parts products, and difficult processing, so as to ensure stability Effect

Active Publication Date: 2022-03-15
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Abstract
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Problems solved by technology

[0003] The CNC machining flexible manufacturing system is suitable for the multi-variety and small-batch manufacturing mode. The parts processed by it usually have the characteristics of various types of parts, high product value, high processing difficulty, and high processing precision. Once quality problems occur, it will seriously affect the parts. The production and delivery progress of the product, on the other hand, will also cause irreparable huge economic losses

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  • A multi-agent-based early warning method for machining process in NC machining flexible manufacturing system
  • A multi-agent-based early warning method for machining process in NC machining flexible manufacturing system
  • A multi-agent-based early warning method for machining process in NC machining flexible manufacturing system

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Embodiment 1

[0040] This embodiment provides a Multi-Agent-based CNC processing flexible manufacturing system processing early warning method, the specific process is as follows figure 1 shown, including the following steps:

[0041] (1) Establish the processing state performance index system of the CNC machining flexible manufacturing system, and evaluate the processing state of the flexible manufacturing system;

[0042] (2) According to the processing state performance index system established in step (1), construct the processing information fusion model of the CNC machining flexible manufacturing system based on Multi-Agent, conduct modeling analysis on the information fusion of the processing process of the flexible manufacturing system, and describe respectively Activities in each stage of data acquisition, data processing, data fusion and process early warning in the process of flexible manufacturing system;

[0043] (3) Starting from data preprocessing, the processing information...

Embodiment 2

[0045] On the basis of the above-mentioned embodiments, this embodiment further defines the specific composition of the processing state performance index system of the NC machining flexible manufacturing system, such as figure 2 As shown, the established machining state performance index system of the NC machining flexible manufacturing system is mainly composed of a data source layer, a feature parameter layer, and a performance index layer.

[0046] Wherein, the data source layer in the processing state performance index system of the NC machining flexible manufacturing system is the data source of various equipment in the NC machining flexible manufacturing system, and the specific equipment mainly includes PLC, upper computer, pressure sensor, vibration sensor .

[0047] The feature parameter layer is the main parameters reflecting the processing state of the flexible manufacturing system equipment, and the main parameters include spindle speed, spindle power, feed speed...

Embodiment 3

[0050] On the basis of the above-mentioned embodiments, this embodiment further limits the composition of the processing information fusion model of the CNC machining flexible manufacturing system, such as image 3 As shown, the machining process information fusion model of the multi-agent-based NC machining flexible manufacturing system is mainly composed of a four-layer structure of processing state information acquisition agent, information preprocessing agent, information fusion agent, and processing state monitoring and early warning agent .

[0051] Wherein, the processing state information collection Agent is an agent for all processing state information collection under the complex, dynamic and changeable production environment of the CNC machining flexible manufacturing system, which can collect the processing state of the flexible manufacturing system in different orientation environments in real time through the data collection network Information, and the obtained ...

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Abstract

The invention discloses a multi-agent-based early warning method for the processing process of a flexible manufacturing system for numerical control machining, which belongs to the technical field of early warning for numerical control machining and includes the following steps: 1) establishing a processing state performance index system for a flexible manufacturing system for numerical control machining; 2) constructing The processing information fusion model of the CNC machining flexible manufacturing system based on Multi‑Agent; 3) Starting from data preprocessing, the processing information fusion model is solved based on data denoising and neural network algorithms, and the normalized state is processed The information samples are input into the neural network pattern recognizer, and the neural network model is repeatedly trained until the desired performance is achieved, and the output of the feature-level information fusion result is obtained, and the early warning of the processing process of the CNC machining flexible manufacturing system is completed. The invention takes the NC machining flexible manufacturing system as the research object, conducts unified modeling and solving for the information fusion process of the NC machining flexible manufacturing system based on Multi-Agent, and can obtain an early warning effect that meets the system requirements.

Description

technical field [0001] The invention relates to the technical field of workshop manufacturing system modeling and processing process early warning, and specifically refers to a Multi-Agent-based processing process early warning method of a numerically controlled flexible manufacturing system. Background technique [0002] The CNC machining flexible manufacturing system refers to some equipment connected by a transmission system. The transmission device puts the workpiece on other connecting devices and sends it to each processing equipment, so that the workpiece can be processed accurately, quickly and automatically. Flexible manufacturing systems have central computer-controlled machine tools and transfer systems that can sometimes process several different parts simultaneously. Composed of a unified information control system, material storage and transportation system, and a set of digitally controlled processing equipment, it is an automated mechanical manufacturing syst...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/418
CPCG05B19/41865G05B2219/32252Y02P90/02
Inventor 黄松褚福舜褚博文郭国彬张娜郭和平
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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