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Digitalized plasma cutting machine control system

A plasma cutting machine and control system technology, applied in the field of plasma cutting motor control system, can solve the problems of limited ability of complex processing, affecting the consistency of the controller, affecting the stability of the controller, etc., to achieve good product consistency, improvement and reliability performance, low power consumption

Active Publication Date: 2013-12-11
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The biggest disadvantage of the analog control system is the limited ability to perform complex processing, the large number of components, and the parameters of the controller are determined by the parameters of discrete components such as resistors and capacitors. The debugging of the controller is complicated and the flexibility is poor.
At the same time, the parameter distribution of resistance and capacitance affects the consistency of the controller, and the stability of the parameters is poor, such as temperature drift affects the stability of the controller

Method used

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  • Digitalized plasma cutting machine control system

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Embodiment Construction

[0019] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0020] Such as figure 1 As shown, the digital plasma cutting machine control system provided by the example of the present invention is mainly composed of a main power controller 10 , a gas controller 20 and a cooler controller 30 .

[0021] Each controller adopts DSP with strong signal processing ability, good real-time performance and high calculation precision as the control center.

[0022] The main power controller 10 realizes high-speed, reliable, real-time and f...

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Abstract

The invention discloses a digitalized plasma cutting machine control system. Each controller adopts a DSP (digital signal processor) as the control center, and a main power supply controller is connected with a gas controller and a cooler controller in a communication manner through a CAN (controller area network) bus; the main power supply controller is used for finishing flow control and management, the state process detection and fault diagnosis of a plasma cutting power supply system; the gas controller is used for controlling the gas flow direction and gas pressure which are required in the working process of the plasma cutting power supply according to instructions transmitted by the main power supply controller and simultaneously feeding back the information to the main power supply controller to be monitored; the cooler controller is used for controlling the flow rate and temperature of coolant in a plasma cutting machine system and simultaneously feeding back the information to the main power supply controller to be subjected to condition monitoring. The digitalized control system for the plasma cutting machine realizes the overall function and optimized processing of the whole plasma cutting machine control system through the coordination control of a main power supply, a gas system and a cooling system, so that the operating efficiency of the whole system is improved.

Description

technical field [0001] The invention belongs to the technical field of plasma arc cutting equipment, and in particular relates to a digital plasma cutting motor control system. Background technique [0002] Plasma cutting technology is a high-tech integrating numerical control technology, computer software and hardware technology, plasma cutting technology and precision machinery technology. Plasma cutting has shown great advantages in improving processing accuracy, saving materials, and improving labor productivity. The quality of plasma cutting is related to various process parameters such as cutting current, cutting speed, arc voltage, working gas and flow rate, and nozzle height. Therefore, the plasma cutting machine control system should have the characteristics of multi-tasking and real-time performance. [0003] At present, most plasma cutting machines are based on small and medium power. In order to reduce the size of the equipment, most of them adopt centralized co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K10/00G05B19/18
Inventor 林桦王兴伟林磊蔡涛钟和清邓禹
Owner HUAZHONG UNIV OF SCI & TECH
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