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PC-based numerical control machine tool full closed-loop control system

A control system and CNC machine tool technology, applied in the field of machinery, can solve the problems of incompetent software expansion function, unfavorable to play the automatic control of CNC machine tools, efficient processing, etc., to achieve the effect of full closed-loop control and improve the degree of automation

Inactive Publication Date: 2017-06-20
申久祝
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AI Technical Summary

Problems solved by technology

The traditional closed special-purpose CNC system does not have a strong architecture support platform, and is unable to perform reliable software expansion functions, which is not conducive to giving full play to the advantages of automatic control and efficient processing of CNC machine tools

Method used

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  • PC-based numerical control machine tool full closed-loop control system
  • PC-based numerical control machine tool full closed-loop control system
  • PC-based numerical control machine tool full closed-loop control system

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with drawings and embodiments.

[0018] Such as figure 1 , the full-closed-loop servo control is based on the online monitoring and real-time control of the actual processing state variables to adjust the processing parameters (cutting speed, feed rate, etc.). In this way, the influence of machine tool state changes and external disturbances during the machining process can be eliminated to optimize the machining process, improve production efficiency and product quality.

[0019] Such as figure 2 , the control system adopts the self-adaptive full-closed-loop servo control technology of the machine tool, and transmits the online detection quantity to the CNC system through the signal acquisition and processing unit. Automatically adjust processing parameters to reduce processing errors.

[0020] Such as image 3 , "PC + adaptive control module" constitutes an open structure. The control system ca...

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Abstract

A PC-based numerical control machine tool full closed-loop control system is provided. A machine tool adaptive full closed-loop servo control technology is used. An online detection quantity is transmitted, through a signal acquisition and processing unit, to a numerical control system. The numerical control system analyzes whether a real-time processing dimension error exceeds a tolerance value prescribed by a part accuracy index, and then automatically adjusts the processing parameters to reduce the processing error. The control system adopts an open computer numerical control system based on PC and suitable for the development trend of the current numerical control machine tool, completes the setting of functional units by software, improves the automation degree of the numerical control system and realizes the full closed loop control of processing precision.

Description

[0001] Technical field [0002] The invention relates to a PC-based full-closed-loop control system of a numerical control machine tool, which is suitable for the mechanical field. Background technique [0003] The slender shaft is characterized by relatively poor rigidity, and will bend or even vibrate when subjected to radial force. The traditional closed special-purpose CNC system does not have a strong architecture support platform, is not capable of reliable software expansion functions, and is not conducive to giving full play to the advantages of automatic control and efficient processing of CNC machine tools. The adaptive control method of machine tools will solve the problem of machining accuracy of high-precision slender shafts from the source of errors. The main body of the control is to use a PC to build an open computer numerical control system. The main functions are completed by software. During the process of cutting high-precision slender shafts on the CNC ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/401
CPCG05B19/401
Inventor 申久祝
Owner 申久祝
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