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Intelligent numerical control method with three-stage process self-optimization function

A self-optimizing, intelligent control technology, applied in the direction of digital control, adaptive control, electrical program control, etc., can solve the problems of manual error, error, high cost and so on

Active Publication Date: 2009-07-08
天津市泰森数控科技有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

These equipments play a key and even core role in processing quality and efficiency, and are often quite expensive to manufacture; even some processed products, due to their complexity, precision or large-scale features, have a unit cost or processing cost that is quite astonishing.
In this case, damage to processing equipment or product scrapping or even just a reduction in processing efficiency can cause huge losses
[0004] Traditionally, the setting of processing parameters is based on human experience or related manuals, but it is difficult to give better processing parameters for beginners or even skilled operators, and because the setting of processing parameters involves Human operation, there may be hand errors, etc., which may give wrong or even endanger the processing parameters of machine tools, tools and workpieces, and these cannot be detected by the system's decoding error detection

Method used

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Embodiment Construction

[0025] The intelligent control method of the present invention will be described in detail below by taking the intelligent numerical control system integrated with the self-optimizing function of three-level machining constructed according to the intelligent control method of the present invention as an example.

[0026] The numerical control system of the present invention is mainly divided into a main control module, a motion control module, a communication module, a numerical control program processing parameter self-optimization module, a processing operation real-time optimization module, an on-machine detection module and a numerical control program secondary self-optimization module. Except that the motion control module and the acquisition and analysis unit use high-speed DSP as independent core processors, the rest share high-performance microprocessors with the main control module. The modules are linked through the system internal bus 1 to realize function calling an...

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Abstract

The invention belongs to the technical field of digital control of electromechanical integration, and relates to an intelligent control method with the three-stage processing self-optimization function. The intelligent control method comprises the following steps: firstly, optimizing and an executing processing program according to optimum processing parameters; secondly, detecting the current and the power supply voltage of a main motor in real time during processing, taking the current as a decision-making value, the voltage as an supplementary means and the variation delta af of the feeding speed af as a system adjustment value, and realizing closed-loop feedback fuzzy control of the processing process; and thirdly, taking a trigger signal of a three-dimensional measuring head as an input mark value after completing the procedure of detection of geometrical information of workpieces, reading the actual coordinate of a current measuring point after detecting the input mark value of the measuring head, estimating errors of processed workpieces after measuring all the measuring points, and performing secondary self-adaptive optimization and adjustment on the processing program. The intelligent control method can realize self-optimization of a digital control program; and a digital control system can acquire shape and position error information of the workpieces in time, so that parameters in subsequent technology are convenient to adjust.

Description

technical field [0001] The invention belongs to the technical field of mechanical and electrical integration numerical control, and in particular relates to an intelligent numerical control system based on the integration of state monitoring, real-time optimization and fuzzy control based on machine tool processing sites. Background technique [0002] The CNC system is the core control unit of the CNC machine tool, which can fully control the movement and processing process of the machine tool. And has the following functions: number of control axes and linkage axes; interpolation function; feed function; spindle function; tool function; tool compensation; mechanical error compensation; operation function; program management function; character graphic display function; auxiliary programming function; Automatic diagnosis and alarm function; communication function. For a NC machining program, if there is a logic error, the system's automatic diagnosis and alarm function will...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/18G05B13/02
Inventor 王太勇刘清建胡世广支劲章乔志峰陈土军
Owner 天津市泰森数控科技有限公司
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