CN103100789A

CN103100789A - Novel arc cutting machine

Info

Publication number: CN103100789A
Application number: CN 201110369412
Authority: CN
Inventors: 范福仓
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-11-11
Filing date: 2011-11-11
Publication date: 2013-05-15

Abstract

The invention relates to a novel arc cutting machine, a plurality of plasma torches are arranged in an outer shell of a cutting handle body of the arc cutting machine and juxtaposed together, electrode wires and air and liquid feed pipes are connected between a machine box and the cutting handle body, and an electrical component and an air and liquid feed device are arranged in the machine box. When the novel arc cutting machine starts to work, the electrical component provides electrical energy for positive electrodes and negative electrodes of the plasma torches through the electrode wires, the air and liquid feed device provides air pressure and hydraulic pressure for the plasma torches through the air and liquid feed pipes, so that when the plurality of plasma torches are gathered together, relatively large energy can be generated for cutting workpieces with relatively large thicknesses.

Description

A kind of novel arc cutting machine

Affiliated technical field

The present invention relates to the device that a kind of heat energy that utilizes electric arc to produce comes cut workpiece.

Background technology

At present, the energy that existing arc cutting machine produces is little, and is more difficult when the larger workpiece of cutting thickness, and is subjected to the impact of voltage, hydraulic pressure and air pressure larger, makes troubles for cutting work.

Summary of the invention

For overcoming in existing situation, the energy that existing arc cutting machine produces is little, more difficult when the larger workpiece of cutting thickness, and be subjected to the impact of voltage, hydraulic pressure and air pressure larger, and bring the deficiency that does not make for cutting work, the invention provides a kind of novel arc cutting machine, it has a plurality of plasma torch to condense together, the energy that produces is large and concentrated, and the workpiece that suitable cutting thickness is larger brings convenience for people's cut workpiece.

the technical solution adopted for the present invention to solve the technical problems is: cutting of arc cutting machine, the housings of body is had a plurality of plasma torch, these plasma torch are in juxtaposition, at cabinet with cut and have electrode wires to be connected with the air feed feed pipe between a body, there are electric elements and air feed liquid feed device in the cabinet the inside, when starting working, electric elements provide electric energy by electrode wires for anode and the negative electrode of plasma torch, the air feed liquid feed device provides air pressure and hydraulic pressure by the air feed feed pipe for plasma torch, a plurality of like this plasma torch condense together and just can produce larger energy, come the larger workpiece of cutting thickness.

The invention has the beneficial effects as follows, bring convenience for people's cut workpiece.

Description of drawings

The invention will be further described below in conjunction with drawings and Examples.

Fig. 1 is the outward appearance front view of each several part of the present invention.

Fig. 2 cuts the sectional view that body is divided the A-B direction in Fig. 1.

Fig. 3 is the elevation cross-sectional view of individual plasma spray gun in Fig. 1.

Fig. 4 is circuit connection diagram of the present invention.

1. handles in figure, 2. plasma torch, 3. cut a body case, 4. air feed feed pipe, 5. nozzle, 6. base, 7. electrode wires, 8. cabinet, 9. insulator, 10. cooling water, 11. anodes, 12. negative electrodes, 13. cooling water, 14. arc columns, 15. working air current imports, 16. power lines, 17. workpiece.

The specific embodiment

in Fig. 1, there are a plurality of plasma torch (2) body case (3) the inside of cutting at the arc cutting machine, these plasma torch are in juxtaposition, handle (1) is arranged on cut a body case (3), nozzle (5) below cutting a body case (3), at cabinet (8) and cut have electrode wires (7) to be connected 4 with the air feed feed pipe between a body) connect, base (6) is arranged below cabinet (8), there are electric elements and air feed liquid feed device in the inside of cabinet (8), there is power line (16) outside of cabinet (8), when starting working, electric elements provide electric energy by electrode wires (7) for the anode of plasma torch (2) and negative electrode, the air feed liquid feed device provides air pressure and hydraulic pressure by air feed feed pipe (4) for plasma torch (2), a plurality of like this plasma torch condense together and just can produce larger energy, come the larger workpiece of cutting thickness.

In Fig. 2, inside cutting a body case (3), a plurality of plasma torch (2) are arranged, these plasma torch are in juxtaposition.

in Fig. 3, the electric arc that plasma torch produces is the metastatic plasma arc, between negative electrode (12) and anode (11), insulator (9) is arranged, the air-flow and the cooling water (10) that enter from working air current import (15), (13) acting in conjunction is in electric arc, make the cooling contraction of electric arc, concentration of energy, nozzle and workpiece (17) connect positive pole simultaneously, at first connect the circuit between negative electrode (12) and anode (11), electric arc between negative electrode (12) and nozzle ignites, then connect rapidly the circuit between negative electrode (12) and workpiece (17), make arc column (14) transfer to directly burning between negative electrode (12) and workpiece (17), cut off simultaneously the circuit between negative electrode (12) and nozzle.

in Fig. 4, the maximum input of this circuit is less than 100W, adopt weak current striking technology, can automatically ignite rapidly and be about 5mm～10mm, the stable arc of electric current 1～3A, striking device as arc cutting machine electrode, electric arc is difficult for extinguishing, it is the 1000V pulse voltage of 50Hz that T2 level produces frequency, adjust RP, maximum average current when guaranteeing the T2 secondary short circuited is less than 0.5mA, by C4, C5, VD5, VD6, VD7, R2 forms main circuit, export the approximately direct-flow no load voltage of 80V, at first carry out short-circuit arc during use, then separate the two poles of the earth, air-gap between the high-voltage breakdown both positive and negative polarity that impulse circuit produces, form ionization channels, energy on C5 discharges to this passage by R2, to keep its ionization, then, main circuit is namely discharged the electric current of 1～3A by this passage, thereby draw so continuous electric arc.

Claims

1. novel arc cutting machine, it is characterized in that: cutting of arc cutting machine, the housings of body is had a plurality of plasma torch, these plasma torch are in juxtaposition, at cabinet with cut and have electrode wires to be connected with the air feed feed pipe between a body, there are electric elements and air feed liquid feed device in the cabinet the inside.