Intrinsic safe two-dimensional intelligent control arc voltage increaser

Abstract

The invention provides an intrinsic safe two-dimensional intelligent control arc voltage increaser. The two-dimensional intelligent control arc voltage increaser comprises a numerical control cutting system, an increaser, a horizontal moving controller and an executing mechanism. The intrinsic safe two-dimensional intelligent control arc voltage increaser provided by the invention has the advantages as follows: when the vertical height of a cutting torch is controlled, a horizontal moving speed adjusting scale factor is provided through a fuzzy analysis calculator C2 in a main control single chip in the increaser, so that the horizontal moving speed of the cutting torch can be controlled so as to ensure machining quality; as break-overs of field-effect transistors of two upper arms of an H-bridge are respectively controlled by using two control voltage sources, and two lower arms of the H-bridge share a control voltage source, no interference between control power supply potentials is ensured, so that control signals can be correctly and safely executed; and through interlocked bridge arm control circuits, a fault that a power supply is short-circuited to damage the control chip is avoided.

Description

technical field [0001] The invention relates to an auxiliary device of a digital cutting system, in particular to an intrinsically safe two-dimensional intelligent control arc voltage height regulator. Background technique [0002] In industrial production, CNC plasma cutting has become one of the important means of mechanical processing. The cutting quality is closely related to the distance between the cutting torch (cutting torch) and the cut piece (steel plate) during the cutting process, that is, the height of the cutting torch. As an auxiliary machine of the cutting machine, the arc voltage height controller is used to control the height of the cutting torch and plays a key role in the cutting quality. At present, there are height controllers based on micro-controllers that have been put into practical use in China, but most of the existing height controllers are controlled by switches, and the control accuracy is not enough, and the existing height controllers cannot ...

AI Technical Summary

Problems solved by technology

At present, there are height controllers based on micro-controllers that have been put into practical use in China, but most of the existing height controllers are controlled by switches, and the control accuracy is not enough, and the existing height controllers cannot control the horizontal movement speed of the cutting torch. Whether the surface of the workpiece is flat or not, the cutting torch runs at the same speed level, so there are disadvantages such as low control precision, poor anti-interference ability and weak safety performance

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