High-energy beam spray gun

Abstract

The invention discloses a high-energy beam spray gun which comprises a linear stepping motor, a hafnium filament clamping sleeve and a nozzle, wherein the hafnium filament clamping sleeve is communicated with the linear stepping motor; the linear stepping motor is connected with a linking tube sleeve in which an air supply tube is arranged; the nozzle is positioned at one end of the linking tube sleeve; an accommodation cavity which is used for accommodating a split electrode and is communicated with the air supply tube is formed inside the nozzle; the split electrode comprises more than one electrode pieces which can be compressed by compressed air and a corn-hole clamping sleeve which is elastically connected with the electrode pieces. Compressed air is fed into the accommodation cavity from the air supply tube to compress the electrode pieces, at the same time, the corn-hole clamping sleeve is pushed, and a hafnium filament can be tightly clamped under the action of the compression force of the electrode pieces and the clamping force of the corn-hole clamping sleeve. After the front end of the hafnium filament is used up, the spray gun stops working and cuts off the compressed air, and the hafnium filament which is not tightly held is pushed forwards for a certain distance by the linear stepping motor, so that the situation that the motor and the nozzle can be easily damaged as the hafnium filament is not supplemented in time can be effectively avoided, and a good arcing effect can be achieved.

Description

technical field [0001] The invention relates to the technical field of plasma cutting, and more specifically relates to a high-energy beam spray gun. Background technique [0002] Plasma arc cutting is a process in which a high-temperature, high-speed plasma arc is used as a heat source to partially melt the workpiece to be cut and use the mechanical scour force of compressed high-speed airflow to blow away the melted metal or non-metal to form a narrow incision. [0003] The plasma arc cutting system is mainly composed of welding power supply, spray gun, control system, gas circuit and water circuit. Among the accessories, the spray gun is an extremely important working part. It is normal for the electrode and nozzle of the spray gun to be worn out and replaced as arc starting and arc finishing components during use. But at present, the electrodes and nozzles of the spray gun are worn too much and too fast during use, and the frequency of replacement is high. [0004] For...

AI Technical Summary

Problems solved by technology

[0006] In view of this, the object of the present invention is to provide a high-energy beam spray gun. The structural design of the high-energy beam spray gun can effectively solve the problem that the hafnium wire is difficult to be replenished to the front end of the electrode in time and the electrode and nozzle are easily damaged in the process of continuous consumption.

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