Plasma cutting height adjuster and working method thereof

A plasma and height adjustment technology, which is applied in plasma welding equipment, manufacturing tools, metal processing equipment, etc., can solve the problems of small distance, large fluctuation of control height range, manual adjustment, etc.

Inactive Publication Date: 2016-02-03
JIANGSU UNIV OF TECH
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  • Abstract
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Problems solved by technology

[0004] At present, domestic CNC plasma cutting height tracking control is generally realized by PWM pulse analog control DC motor driving rack and pinion. Although the circuit is simple and low cost, it also has low control accuracy, large fluctuations in the control height range, and often requires manual control. Disadvantages such as regulation
In addition, the plasma nee

Method used

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  • Plasma cutting height adjuster and working method thereof

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Embodiment Construction

[0023] In order to make the content of the present invention more clearly understood, the present invention will be further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

[0024] Such as figure 1 As shown, a plasma cutting height controller, which includes:

[0025] An arc voltage acquisition module, the arc arc voltage acquisition module is used to acquire the real-time arc voltage value generated by the plasma cutting gun when cutting the workpiece;

[0026] A cutting torch height adjusting device, the cutting torch height adjusting device is used to adjust the height between the plasma cutting torch and the workpiece;

[0027] An operation processing module, the signal input end of the operation processing module is connected with the signal output end of the arc voltage acquisition module, the signal output end of the operation processing module is connected with the cutting torch height adjustment device, and t...

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Abstract

The invention discloses a plasma cutting height adjuster and a working method thereof. The plasma cutting height adjuster comprises an electric arc voltage collecting module, a cutting gun height adjusting device and a computing module. The signal input end of the computing module is connected with the signal output end of the electric arc voltage collecting module. The signal output end of the computing module is connected with the cutting gun height adjusting device. A set electric arc voltage value corresponding to workpieces of different cutting thicknesses is arranged in the computing module. The computing module is used for driving the cutting gun height adjusting device to act according to the real-time electric arc voltage value collected by the electric arc voltage collecting module, and therefore the height distance between a plasma cutting gun and the workpieces is adjusted, and the real-time electric arc voltage value produced when the plasma cutting gun cuts the workpieces tends to the set electric arc voltage value. The self-adaption adjustment can be conducted on electric arc voltage of the plasma cutting gun by adjusting the height of the plasma cutting gun in the cutting process, and therefore cutting quality and accuracy are improved.

Description

technical field [0001] The invention relates to a plasma cutting height controller and a working method thereof. Background technique [0002] At present, plasma cutting has applied the cutting method of high-energy melting cutting with plasma arc as the heat source, which has the advantages of fast cutting speed, narrow heat-affected zone of the incision, small deformation of the workpiece, and good cutting precision, and is widely used in automatic cutting of metal sheets . However, in today's increasingly demanding metal sheet cutting quality, plasma cutting only relies on semi-automatic cutting with manual adjustment of arc length or automatic cutting with analog adjustment of arc length controlled by DC motor, which is difficult to meet the requirements of cutting quality and cutting efficiency. [0003] During the cutting process, it is very important to control the height distance between the plasma cutting gun and the workpiece. When the cutting speed and the nozzle...

Claims

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Application Information

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IPC IPC(8): B23K10/00
CPCB23K10/00
Inventor 杨龙兴蒋新华杨浩轩
Owner JIANGSU UNIV OF TECH
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