CN119407295A - A multi-gas plasma arc gouging torch capable of changing arc shape - Google Patents
A multi-gas plasma arc gouging torch capable of changing arc shape Download PDFInfo
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- CN119407295A CN119407295A CN202510022036.8A CN202510022036A CN119407295A CN 119407295 A CN119407295 A CN 119407295A CN 202510022036 A CN202510022036 A CN 202510022036A CN 119407295 A CN119407295 A CN 119407295A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 112
- 238000010926 purge Methods 0.000 claims abstract description 86
- 238000007789 sealing Methods 0.000 claims abstract description 36
- 238000003825 pressing Methods 0.000 claims abstract description 16
- 230000001681 protective effect Effects 0.000 claims description 32
- 238000007664 blowing Methods 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 2
- 238000005520 cutting process Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 152
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- 229910052799 carbon Inorganic materials 0.000 description 9
- 230000004048 modification Effects 0.000 description 8
- 238000012986 modification Methods 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000002893 slag Substances 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K10/00—Welding or cutting by means of a plasma
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Plasma Technology (AREA)
Abstract
本发明涉及割炬及刨炬技术领域，尤其涉及一种可改变电弧形态的多气体等离子电弧气刨刨炬。该刨炬包括电极座，其一端安装有中空的电极杆，另一端连接枪体，电极杆上安装有电极，电极外设置依次有涡流环、喷嘴，其内设置有水芯，涡流环、电极和喷嘴之间围成离子气室；电极座外设有绝缘套、密封套和外套，密封套朝向喷嘴的一端设置有气盖，气盖与喷嘴压套和绝缘套之间围成吹扫气室，气盖上开设有第一出气孔；绝缘套背离喷嘴的一端设有端板，电极座位于端板的中心位置且贯穿端板，端板上沿电极座的周向设置有进水接口、离子气接口和吹扫气接口。本发明有效解决了现有技术中刨炬的气刨效果差以及无法灵活改变电弧形态的技术问题。
The present invention relates to the technical field of cutting torches and planing torches, and in particular to a multi-gas plasma arc gouging torch capable of changing the arc shape. The gouging torch comprises an electrode holder, one end of which is provided with a hollow electrode rod, and the other end is connected to a gun body, an electrode is installed on the electrode rod, and a vortex ring and a nozzle are arranged outside the electrode in sequence, and a water core is arranged inside the electrode, and an ion gas chamber is formed between the vortex ring, the electrode and the nozzle; an insulating sleeve, a sealing sleeve and an outer sleeve are arranged outside the electrode holder, and an air cap is arranged at the end of the sealing sleeve facing the nozzle, and a purge air chamber is formed between the air cap, the nozzle pressing sleeve and the insulating sleeve, and a first air outlet is provided on the air cap; an end plate is arranged at the end of the insulating sleeve away from the nozzle, and the electrode holder is located at the center of the end plate and penetrates the end plate, and a water inlet interface, an ion gas interface and a purge gas interface are arranged on the end plate along the circumference of the electrode holder. The present invention effectively solves the technical problems of poor gouging effect of the planing torch and the inability to flexibly change the arc shape in the prior art.
Description
Technical Field
The invention relates to the technical field of cutting torches and planing torches, in particular to a multi-gas plasma arc gouging torch capable of changing the arc shape.
Background
In the welding process of the workpiece, the back gouging treatment, the welding defect and the surface material removal all need to use an air gouging process, wherein the most commonly used air gouging process is carbon arc air gouging. The carbon arc gouging is a thermal processing technology which utilizes electric arcs generated between graphite rods or carbon rods and workpieces to melt metals and utilizes compressed air to blow off the melted metals, and the carbon arc gouging can generate larger noise and pollution in the processing process, and needs to consume a large amount of carbon rods, thereby greatly increasing the processing cost.
Currently, in order to improve the environment during welding and reduce the welding cost, a plasma gouging gun is generally used to replace a carbon arc gouging for processing workpieces, such as the air plasma gouging gun provided in the patent document with the publication number CN214867942U for gouging the weld. The plasma gouging is a processing method which utilizes the heat of high-temperature plasma arc to melt the metal in the part of the workpiece and simultaneously eliminates the molten metal by the momentum of high-speed plasma and the energy of compressed air. Compared with a carbon arc gouging machine, the plasma gouging machine has the advantages that 1, the smoke dust concentration of the plasma gouging machine is lower, environmental protection and operator health are facilitated, 2, the noise of the plasma gouging machine is 10-15 dB lower than that of the carbon arc gouging machine, noise pollution is reduced, interference to operators and surrounding environments is smaller, 3, the plasma gouging machine adopts concentrated high-temperature electric arcs to treat workpieces, the energy utilization rate is high, a carbon rod electrode is not needed, loss of consumable products is reduced, and welding cost is effectively reduced.
However, the existing plasma gouging still has the following problems that 1, the plasma gouging torch is easy to cause that slag on the surface of a workpiece cannot be completely removed due to insufficient energy sprayed by the arc after molten metal, the slag adheres to the surface of the workpiece to influence the flatness and the smoothness of a gouging seam, so that the gouging quality is reduced, and 2, the existing plasma gouging torch cannot flexibly change the direction of the arc and the width and the depth of the gouging seam, so that accurate gouging cannot be performed on different positions and different workpieces of the same workpiece under the condition that the model of the gouging torch is not changed.
Disclosure of Invention
The invention provides a multi-gas plasma arc gouging torch capable of changing an arc shape, which aims to solve the technical problems that the gouging effect of the gouging torch is poor and the arc shape cannot be flexibly changed in the prior art.
In order to solve the problems, the multi-gas plasma arc gouging torch capable of changing the arc shape provided by the invention adopts the following technical scheme:
A multi-gas plasma arc gouging torch capable of changing an arc shape comprises an electrode seat, a nozzle pressing sleeve and a nozzle pressing sleeve, wherein one end of the electrode seat is provided with a hollow electrode rod, the other end of the electrode rod is used for being connected with a gun body, one end of the electrode rod, which is away from the electrode seat, is provided with an electrode, a nozzle is sleeved outside the electrode in a spacing manner, a water core is arranged in the electrode, a vortex ring is arranged between the electrode and the nozzle, an ion air chamber is enclosed between the vortex ring, the electrode and the nozzle, one end of the nozzle, which is away from a nozzle opening, is provided with the nozzle seat, and the nozzle pressing sleeve is arranged between the nozzle seat and the nozzle; the electrode holder is externally sleeved with an insulating sleeve, the insulating sleeve is sleeved with a sealing sleeve and an outer sleeve, one end of the sealing sleeve, facing the nozzle, is provided with an air cover, a purging air chamber is defined between the air cover and the nozzle and the insulating sleeve, the air cover comprises a cover body connected with the sealing sleeve, one end, facing away from the sealing sleeve, of the cover body is provided with an air ring, a first air outlet hole is formed in the air ring for spraying out purging air, a junction point exists between the blowing direction of the purging air and the blowing direction of plasma gas, one end, facing away from the nozzle, of the insulating sleeve is provided with an end plate, the electrode holder is located at the center of the end plate and penetrates through the end plate, a water inlet port, an ion air port and a purging air port are formed in the end plate along the circumferential direction of the electrode holder, a first ion air channel communicated with the ion air port is formed in the insulating sleeve, a second ion air channel communicated with the ion air chamber is formed between the electrode and the nozzle in a surrounding manner, and the first purging air channel communicated with the purging air port is formed between the sealing sleeve and the outer sleeve.
The multi-gas plasma arc gouging torch capable of changing the arc shape has the beneficial effects that:
Firstly, a purge gas port is arranged on an end plate of a sealing sleeve, a first purge gas channel communicated with the purge gas port is formed in an insulating sleeve, a second purge gas channel is formed between the sealing sleeve and an outer sleeve in a surrounding mode, a gas cover is arranged at one end, facing a nozzle, of the sealing sleeve, a region formed by the gas cover, the nozzle and the insulating sleeve in a surrounding mode is used as a purge gas chamber, the second purge gas channel is communicated with the first purge gas channel and the purge gas chamber, a first gas outlet hole for spraying out purge gas is formed in a gas ring of the gas cover, and therefore a purge gas channel can be formed in a planing torch, and when the plasma arc is formed by heating plasma gas to extremely high temperature and highly ionizing, a workpiece is melted, and slag generated on the surface of the workpiece after melting can be assisted by the purge gas;
Secondly, the blowing direction of the purge gas and the blowing direction of the plasma gas have a junction, and the position of the first air outlet hole relative to the nozzle opening of the nozzle can be changed by rotating the air cover, so that the shape of the plasma arc can be changed, and the width, depth and direction of the planer seam can be flexibly changed without changing the nozzle, and the operation is simple and convenient.
Through the arrangement, the invention effectively solves the technical problems that the gouging effect of the gouging torch in the prior art is poor and the arc shape cannot be flexibly changed.
Further, a transfer chamber is formed in one end, deviating from the purge gas interface, of the first purge gas channel on the insulating sleeve, and a transfer hole for communicating the transfer chamber with the second purge gas channel is formed in the sealing sleeve.
Further, the number of the purge gas connectors is two, each purge gas connector is provided with one first purge gas channel, and the tail ends of the two first purge gas channels are intersected with the transfer chamber.
The air flow control device has the beneficial effects that the purge air entering the transfer chamber from the two purge air interfaces can be mutually integrated in the transfer chamber to form more stable and uniform air flow, and the air flow turbulence and vortex phenomenon can be reduced.
Further, the end plate is provided with a protective gas interface, the nozzle faces the outer periphery of one end of the insulating sleeve, the insulating sleeve is internally provided with a first protective gas channel communicated with the protective gas interface, the inner wall of the first protective gas channel is provided with threads, one end of the protective gas channel, which deviates from the protective gas interface, is provided with a first transfer channel extending towards the sealing sleeve, a second transfer channel communicated with the first transfer channel is enclosed between the insulating sleeve and the sealing sleeve, the nozzle is provided with a plurality of second air outlet holes uniformly distributed along the circumferential interval of the nozzle and consistent with the extending direction of the nozzle mouth so as to be used for discharging protective gas, the nozzle seat is provided with a third transfer channel communicated with the second air outlet hole, the sealing sleeve is provided with a fourth transfer channel communicated with the second transfer channel, and the protective cover is provided with a diameter-collecting section, and the radial dimension of the protective cover, which is close to one side of the nozzle mouth, is smaller than the radial dimension of one side of the nozzle mouth, which deviates from the nozzle mouth.
The plasma arc planing machine has the beneficial effects that the second air outlet holes which are uniformly distributed along the circumferential direction of the nozzle pressing sleeve at intervals and are consistent with the extending direction of the nozzle opening of the nozzle are formed in the nozzle pressing sleeve, the protective air can be discharged through the second air outlet holes, the protective air distributed in the circumferential direction is formed around the plasma arc, the surface of a workpiece can be cleaned while the plasma arc is secondarily coated, the planing stability of the plasma arc can be ensured, the influence of interference factors such as the flow of external wind on the planing operation is effectively avoided, and the planing quality and the planing efficiency of the planing operation are ensured.
Further, an electrode rod insulating sleeve is arranged between the electrode rod and the nozzle pressing sleeve.
Further, a first water inlet channel communicated with the water inlet interface is arranged in the insulating sleeve, a second water inlet channel communicated with the first water inlet channel is arranged on the electrode base, the second water inlet channel is communicated with the water core, a third water inlet channel communicated with the water core is enclosed between the electrode rod and the water core, a fourth water inlet channel communicated with the third water inlet channel is arranged on the insulating sleeve, a fifth water inlet channel communicated with the fourth water inlet channel is arranged on the nozzle base, a water guide groove which is arranged on the surface of the nozzle and extends to the front end of the nozzle pressing sleeve is arranged on the nozzle, and a first water return channel communicated with the water guide groove and a second water return channel communicated with the first water return channel and the water return pipe on the electrode base are arranged on the insulating sleeve.
The plasma arc gouging torch has the beneficial effects that the circulating waterway can be formed by arranging the first water inlet channel, the second water inlet channel, the water core, the third water inlet channel, the fourth water inlet channel, the fifth water inlet channel, the water guide groove, the first water return channel, the second water return channel and the water return pipe which are communicated in the plasma arc gouging torch so as to cool the interior of the plasma arc gouging torch, thereby prolonging the service life of the plasma arc gouging torch.
Further, the inner walls of the first purge gas channel and the first water inlet channel are provided with threads.
Further, the second water inlet channel is positioned at one side of the water return pipe facing the water core.
Further, the insulating sleeve is provided with a boss between the electrode holder and the nozzle holder for isolating the electrode holder and the nozzle holder.
The insulating boss is arranged between the electrode seat and the nozzle, so that insulation between the electrode seat and the nozzle seat can be ensured, current short circuit is prevented, and the nozzle and the electrode are protected.
Further, the insulating sleeve is provided with a boss between the outer sleeve and the air cover for isolating the outer sleeve from the air cover.
The multi-gas plasma arc gouging torch capable of changing the arc shape has the advantages that the purging gas circuit is arranged in the plasma arc gouging torch, slag on the surface of a workpiece can be blown off in an auxiliary mode, the width, depth and direction of a gouging joint can be flexibly controlled, the protective gas circuit is arranged in the plasma arc gouging torch, secondary coating can be carried out on a plasma arc, the stability of plasma arc gouging can be guaranteed, and the circulating water circuit is arranged in the plasma arc gouging torch, so that the inside of the plasma arc gouging torch can be cooled in a circulating mode, and the service life of the plasma arc gouging torch can be prolonged.
Through the arrangement, the invention effectively solves the technical problems that the gouging effect of the gouging torch in the prior art is poor and the arc shape cannot be flexibly changed.
Drawings
The above, as well as additional purposes, features, and advantages of exemplary embodiments of the present invention will become readily apparent from the following detailed description when read in conjunction with the accompanying drawings. In the drawings, embodiments of the invention are illustrated by way of example and not by way of limitation, and like reference numerals refer to similar or corresponding parts and in which:
FIG. 1 is a schematic diagram of a multi-gas plasma arc gouging torch with arc morphology modification according to the present invention;
FIG. 2 is a side view of the multi-gas plasma arc gouging torch of FIG. 1 with the arc morphology changeable;
FIG. 3 is a cross-sectional view A-A of the multi-gas plasma arc gouging torch of FIG. 2 with the arc morphology changeable;
FIG. 4 is a cross-sectional view B-B of the multi-gas plasma arc gouging torch of FIG. 2 with the arc configuration changed;
FIG. 5 is a second cross-sectional view B-B of the multi-gas plasma arc gouging torch of FIG. 2 with the arc configuration changed;
FIG. 6 is a C-C cross-sectional view of the multi-gas plasma arc gouging torch of FIG. 2 with the arc morphology changeable;
FIG. 7 is a schematic view of an insulating sleeve in a multi-gas plasma arc gouging torch with arc morphology modification according to the present invention;
FIG. 8 is a schematic diagram of a second embodiment of an insulating sleeve of a multi-gas plasma arc gouging torch with arc morphology modification according to the present invention;
FIG. 9 is a schematic view of an electrode holder of a multi-gas plasma arc gouging torch with arc morphology modification according to the present invention;
FIG. 10 is a schematic view of a nozzle holder of a multi-gas plasma arc gouging torch with arc morphology modification according to the present invention;
Fig. 11 is a schematic diagram of a gas cap in a multi-gas plasma arc gouging torch with arc morphology modification according to the present invention.
Reference numerals illustrate:
1. electrode holder, 2, electrode rod, 3, electrode, 4, first nozzle section, 5, second nozzle section, 6, water core, 7, vortex ring, 8, ion air chamber, 9, nozzle holder, 10, nozzle pressing sleeve, 11, insulating sleeve, 12, sealing sleeve, 13, outer sleeve, 14, air cover, 15, purge air chamber, 16, cover, 17, gas ring, 18, first air outlet hole, 19, end plate, 20, water inlet interface, 21, ion air interface, 22, purge air interface, 23, first ion air channel, 24, second ion air channel, 25, first purge air channel, 26, second purge air channel, 27, transfer chamber, 28, protective air interface, 29, protective cover, 30, first protective air channel, 31, first transfer channel, 32, second transfer channel, 33, second air outlet hole, 34, first water inlet channel, 35, second water inlet channel, 36, third water inlet channel, 37, fourth water inlet channel, 38, fifth water inlet channel, 39, second transfer channel, 40, third water inlet channel, 43, fourth transfer channel, and 45.
Detailed Description
The following description of the embodiments of the present invention will be made more complete and clear to those skilled in the art by reference to the figures of the embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that the main concept of the multi-gas plasma arc gouging torch capable of changing the arc shape provided by the invention is that the end plate 19 of the sealing sleeve 12 is provided with the purge gas port 22, the insulating sleeve 11 is internally provided with the first purge gas channel 25, the area enclosed between the sealing sleeve 12 and the outer sleeve 13 is used as the second purge gas channel 26, the end of the sealing sleeve 12 facing the nozzle is provided with the gas cover 14, the gas cover 14 is provided with the first gas outlet hole 18, and the purge gas port 22, the first purge gas channel 25, the second purge gas channel 26 and the first gas outlet hole 18 are sequentially communicated, so that a purge gas path can be formed in the plasma arc gouging torch, thereby assisting in blowing away slag on the surface of a workpiece after melting during plasma arc gouging, and the position of the first gas outlet hole 18 relative to the nozzle mouth can be changed by rotating the gas cover 14, so that the shape of the plasma arc can be flexibly changed without changing the nozzle, and the width, depth and direction of the gouging seam can be flexibly changed.
Having described the basic principles of the present invention, various non-limiting embodiments of the invention are described in detail below. Any number of elements in the figures are for illustration and not limitation, and any naming is used for distinction only and not for any limiting sense.
The principles and spirit of the present invention are explained in detail below with reference to several representative embodiments thereof.
Example 1 of a multi-gas plasma arc gouging torch with arc morphology modification provided by the present invention:
as shown in fig. 1 to 11, the multi-gas plasma arc gouging torch capable of changing the arc morphology comprises an electrode holder 1, an electrode rod 2, an electrode 3, a nozzle, a water core 6, an insulating sleeve 11, a sealing sleeve 12 and an outer sleeve 13.
The electrode holder 1 is provided with a hollow electrode rod 2 at the right end, an electrode 3 is sleeved in the right end of the electrode rod 2, a water core 6 is sleeved in the electrode rod 2, the water core 6 extends along the length direction of the electrode rod 2, the left end of the water core is connected with the electrode holder 1, the right end of the water core extends into the electrode 3, a nozzle is sleeved outside the electrode 3, the left end of the nozzle is provided with a nozzle holder 9, a nozzle pressing sleeve 10 is arranged between the nozzle and the nozzle holder 9, the right end of the sealing sleeve 12 is provided with a gas cover 14, the left end of the insulating sleeve 11 is provided with an end plate 19, the electrode holder 1 is positioned at the center of the end plate 19 and penetrates through the end plate 19, a water inlet port 20, an ion gas port 21, a purge gas port 22 and a protective gas port 28 are arranged on the end plate 19 along the circumferential direction of the electrode holder 1, and a circulating water channel, a first ion gas channel 23, a purge gas channel and a protective gas channel are communicated with the water path, the ion gas channel, the purge gas channel and the protective gas channel are respectively formed in the planer.
Specifically, a hafnium wire is embedded in the electrode 3 for generating a plasma arc, an electrode rod insulating sleeve 44 is arranged between the electrode rod 2 and the nozzle pressing sleeve 10, and the nozzle is of a split type structure and comprises a first nozzle section 4 arranged between the electrode rod insulating sleeve 44 and the nozzle pressing sleeve 10 and a second nozzle section 5 connected with the right end of the first nozzle section 4.
With respect to the circulation cooling water path. The insulating sleeve 11 is internally provided with a first water inlet channel 34 communicated with the water inlet interface 20, the electrode seat 1 is provided with a second water inlet channel 35 communicated with the first water inlet channel 34, the second water inlet channel 35 is communicated with the water core 6, a third water inlet channel 36 is enclosed between the electrode rod 2 and the water core 6, the third water inlet channel 36 is communicated with the water core 6, the insulating sleeve 11 is provided with a fourth water inlet channel 37 communicated with the third water inlet channel 36, the nozzle seat 9 is provided with a fifth water inlet channel 38 communicated with the fourth water inlet channel 37, the first nozzle section 4 is provided with a water guide groove 39 which is arranged on the surface of the first nozzle section 4 and extends to the front end of the nozzle pressing sleeve 10, the nozzle seat 9 is provided with a first water return channel 40 communicated with the water guide groove 39, the insulating sleeve 11 is provided with a first water return channel 40 communicated with the water guide groove 39, and a second water return channel 41 communicated with the first water return channel 40 and a water return pipe 42 on the electrode seat 1, and the second water inlet channel 35 is positioned on the right side of the second channel 41.
With respect to ion gas paths. The outer periphery of the electrode rod 2 is sleeved with a vortex ring 7, an ion air chamber 8 is enclosed between the vortex ring 7 and the electrode 3 and the nozzle, a first ion air channel 23 communicated with the ion air interface 21 is arranged in the insulating sleeve 11, and a second ion air channel 24 communicated with the first ion air channel 23 and the ion air chamber 8 is enclosed between the electrode 3 and the nozzle.
With respect to the purge gas path. A first purge gas channel 25 communicated with the purge gas interface 22 is formed in the insulating sleeve 11, a second purge gas channel 26 communicated with the first purge gas channel 25 and the purge gas chamber 15 is enclosed between the sealing sleeve 12 and the outer sleeve 13, a transfer chamber 27 is formed in the right end of the first purge gas channel 25 on the insulating sleeve 11, a transfer hole communicated with the transfer chamber 27 and the second purge gas channel 26 is formed in the sealing sleeve 12, the purge gas chamber 15 is enclosed between the gas cover 14 and the nozzle and the insulating sleeve 11, the second purge gas channel 26 is communicated with the purge gas chamber 15, the gas cover 14 comprises a cover body 16 connected with the sealing sleeve 12, a gas ring 17 is arranged in the right end of the cover body 16, and three first gas outlet holes 18 are formed in the gas ring 17 for spraying the purge gas.
Specifically, the number of the purge gas interfaces 22 is two, and each purge gas interface 22 is provided with one first purge gas channel 25, and the right ends of the two first purge gas channels 25 meet in the transfer chamber 27.
With respect to the protection gas path. The periphery cover at nozzle right-hand member is equipped with safety cover 29, set up in the insulating cover 11 with the first protection gas channel 30 that is linked together of protection gas interface 28, the right-hand member of first protection gas channel 30 is equipped with the first transfer passageway 31 that extends towards seal cover 12, enclose into the second transfer passageway 32 with the right-hand member of first transfer passageway 31 intercommunication between seal cover 12 and the insulating cover 11, set up a plurality of second ventholes 33 that are evenly distributed along its circumference interval and are unanimous with the extending direction of nozzle mouth on the nozzle pressure cover 10, in order to be used for discharging the protection gas, set up the third transfer passageway 45 with second venthole 33 intercommunication on the nozzle holder 9, set up the fourth transfer passageway 46 that communicates second transfer passageway 32 and third transfer passageway 45 on the seal cover 12, safety cover 29 has the receipts footpath section that reduces gradually from left to right radial dimension.
Specifically, the plasma arc intersects the gas path outlet of the purge gas at a point.
In addition, the insulating sleeve 11 is provided with a boss 43 between the electrode seat 1 and the nozzle seat 9 for isolating the electrode seat 1 and the nozzle seat 9, and is also provided with a boss 43 between the outer sleeve 13 and the air cover 14 for isolating the outer sleeve 13 and the air cover 14, and when in arcing, high-frequency oscillation voltage is generated between the electrode seat 1 and the nozzle seat 9 so as to ensure that ion gas can be broken down at the mouth of the nozzle.
In order to ensure good tightness in the planing torch, sealing rings are arranged between the insulating sleeve 11 and the sealing sleeve 12, between the electrode seat 1 and the sealing sleeve 12, between the nozzle seat 9 and the nozzle, between the nozzle and the electrode 3 and between the electrode 3 and the electrode rod 2.
The first protection gas channel 30, the first purge gas channel 25 and the first water inlet channel 34 are all provided with threads on the inner wall, and various gases such as air and inert gas can be introduced through the ion gas interface 21, and the ion gas channel, the purge gas channel and the protection gas channel do not interfere with each other, so that the ion gas, the purge gas and the protection gas can be independently adjusted, and the protection gas can be independently adjusted.
In addition, it should be further noted that, the planing torches with gas channels having different lengths and diameters may be selected as required, and the flow rate of the gas and the sequence of the gas introduced into the ion gas interface 21, the purge gas interface 22 and the shielding gas interface 28 in the planing torches may be changed, so as to control the direction, the current density, the diameter of the arc column, the length and the directivity of the plasma arc, thereby realizing precise regulation and control of the shape, the depth and the removal rate of the planing seam, and finally completing the gouging work.
The working principle of the multi-gas plasma arc gouging torch capable of changing the arc shape provided by the invention is as follows:
When the air plasma arc gouging torch works, the ion gas is introduced through the ion gas interface 21, sequentially passes through the first ion gas channel 23 and the second ion gas channel 24 to enter the ion gas chamber 8, then enters the nozzle from the ion gas chamber 8, and is ionized at the mouth of the nozzle to form a plasma arc; meanwhile, cooling water is introduced through the water inlet port 20, the cooling water sequentially passes through the first water inlet channel 34, the second water inlet channel 35, the water core 6, the third water inlet channel 36, the fourth water inlet channel 37, the fifth water inlet channel 38, the water guide groove 39, the first water return channel 40, the second water return channel 41 and the water return pipe 42 to circularly cool the electrode 3 and the nozzle, protective gas is introduced through the protective gas port 28, the protective gas sequentially passes through the first protective gas channel 30, the first transfer channel 31, the second transfer channel 32 and the second air inlet hole, and is discharged after being discharged, the protective gas sequentially crosses a plasma arc at a point to keep the stability of the plasma arc, the purge gas sequentially passes through the first purge gas channel 25 and the second purge gas channel 26 to enter the purge air chamber 15, and finally is discharged through the first air outlet hole 18 formed in the air cover 14, and the protective gas is sequentially crossed with a gas path of the plasma arc and the protective gas at a point after being discharged;
when the plasma arc shape needs to be changed, the air cover 14 is rotated, and the position of the first air outlet hole 18 relative to the nozzle mouth is changed, so that the plasma arc shape can be changed, and the width, depth and direction of the planer seam are changed.
Example 2 of the multi-gas plasma arc gouging torch with changeable arc morphology provided by the present invention:
the differences from example 1 are mainly that:
in embodiment 1, the number of the first air outlet holes is three.
In this embodiment, the number of the first air outlet holes is one or two.
Example 3 of a multi-gas plasma arc gouging torch with arc morphology modification provided by the present invention:
the differences from example 1 are mainly that:
in example 1, the number of purge gas ports was two.
In this embodiment, the number of purge gas interfaces is one or three.
From the foregoing description of the present specification, it will be further understood by those skilled in the art that terms such as "upper", "lower", "front", "rear", "left", "right", "width", "horizontal", "top", "bottom", "inner", "outer", and the like, which indicate an azimuth or a positional relationship, are based on the azimuth or the positional relationship shown in the drawings of the present specification, are for convenience only in explaining aspects of the present invention and simplifying the description, and do not explicitly or implicitly refer to devices or elements having to have the specific azimuth, be constructed and operate in the specific azimuth, and thus the azimuth or positional relationship terms described above should not be interpreted or construed as limitations of aspects of the present invention.
In addition, in the description of the present specification, the meaning of "plurality" means at least two, for example, two, three or more, etc., unless specifically defined otherwise.
Claims (10)
1. The multi-gas plasma arc gouging torch is characterized by comprising an electrode seat, wherein one end of the electrode seat is provided with a hollow electrode rod, the other end of the electrode seat is used for being connected with a gun body, one end of the electrode rod, which is away from the electrode seat, is provided with an electrode, a nozzle is sleeved outside the electrode in a spacing manner, a water core is arranged in the electrode, a vortex ring is arranged between the electrode and the nozzle, an ion air chamber is enclosed between the vortex ring, the electrode and the nozzle, one end of the nozzle, which is away from a nozzle opening, is provided with a nozzle seat, and a nozzle pressing sleeve is arranged between the nozzle seat and the nozzle; the electrode holder is externally sleeved with an insulating sleeve, the insulating sleeve is sleeved with a sealing sleeve and an outer sleeve, one end of the sealing sleeve, facing the nozzle, is provided with an air cover, a purging air chamber is defined between the air cover and the nozzle and the insulating sleeve, the air cover comprises a cover body connected with the sealing sleeve, one end, facing away from the sealing sleeve, of the cover body is provided with an air ring, a first air outlet hole is formed in the air ring for spraying out purging air, a junction point exists between the blowing direction of the purging air and the blowing direction of plasma gas, one end, facing away from the nozzle, of the insulating sleeve is provided with an end plate, the electrode holder is located at the center of the end plate and penetrates through the end plate, a water inlet port, an ion air port and a purging air port are formed in the end plate along the circumferential direction of the electrode holder, a first ion air channel communicated with the ion air port is formed in the insulating sleeve, a second ion air channel communicated with the ion air chamber is formed between the electrode and the nozzle in a surrounding manner, and the first purging air channel communicated with the purging air port is formed between the sealing sleeve and the outer sleeve.
2. The multi-gas plasma arc gouging torch of claim 1 wherein the insulating sleeve has a transfer chamber at an end of the first purge gas channel facing away from the purge gas port, and a transfer hole communicating the transfer chamber with the second purge gas channel is formed in the sealing sleeve.
3. The variable arc geometry multi-gas plasma arc gouging torch of claim 2 wherein the number of purge gas interfaces is two, each of the purge gas interfaces being provided with one of the first purge gas channels, ends of the two first purge gas channels meeting the transfer chamber.
4. A multi-gas plasma arc gouging torch with an arc shape capable of being changed according to any one of claims 1 to 3, wherein a protective gas interface is formed on the end plate, a protective cover is sleeved on the periphery of the nozzle facing one end of the insulating sleeve, a first protective gas channel communicated with the protective gas interface is formed in the insulating sleeve, threads are formed on the inner wall of the first protective gas channel, a first transfer channel extending towards the sealing sleeve is formed at one end of the first protective gas channel, a second transfer channel communicated with the first transfer channel is formed between the insulating sleeve and the sealing sleeve in a surrounding manner, a plurality of second air outlet holes which are uniformly distributed along the circumferential direction of the nozzle at intervals and are consistent with the extending direction of the nozzle mouth are formed on the nozzle pressing sleeve, a third transfer channel communicated with the second air outlet holes is formed on the nozzle seat, a fourth transfer channel communicated with the second transfer channel and the third transfer channel is formed on the sealing sleeve, and a diameter receiving section of the protective cover is formed on the sealing sleeve, and the radial dimension of one side, close to the nozzle mouth, is smaller than the radial dimension of the nozzle mouth, which is far away from the nozzle mouth.
5. A multi-gas plasma arc gouging torch in which the arc morphology is changeable according to any one of claims 1 to 3 wherein an electrode rod insulating sleeve is provided between the electrode rod and the nozzle sleeve.
6. The multi-gas plasma arc gouging torch capable of changing an arc shape according to any one of claims 1 to 3, wherein a first water inlet channel communicated with the water inlet port is arranged in the insulating sleeve, a second water inlet channel communicated with the first water inlet channel is arranged on the electrode holder, the second water inlet channel is communicated with the water core, a third water inlet channel communicated with the water core is enclosed between the electrode rod and the water core, a fourth water inlet channel communicated with the third water inlet channel is arranged on the insulating sleeve, a fifth water inlet channel communicated with the fourth water inlet channel is arranged on the nozzle holder, a water guide groove which is arranged on the surface of the nozzle and extends to the front end of the nozzle pressing sleeve is arranged on the nozzle, and a first water return channel communicated with the water guide groove and a second water return channel communicated with the first water return channel and the water return pipe on the electrode holder are arranged on the insulating sleeve.
7. The multi-gas plasma arc gouging torch in accordance with claim 6 wherein the first purge gas channel and the inner wall of the first water inlet channel are each threaded.
8. The variable arc geometry multi-gas plasma arc gouging torch of claim 7 wherein the second water inlet channel is located on a side of the return tube facing the water core.
9. A multi-gas plasma arc gouging torch in which the electrode mount and the nozzle mount are electrically isolated from each other by a boss between the electrode mount and the nozzle mount.
10. A multi-gas plasma arc gouging torch in which the insulating sleeve has a boss between the outer sleeve and the gas cap for insulating the outer sleeve from the gas cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510022036.8A CN119407295A (en) | 2025-01-07 | 2025-01-07 | A multi-gas plasma arc gouging torch capable of changing arc shape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510022036.8A CN119407295A (en) | 2025-01-07 | 2025-01-07 | A multi-gas plasma arc gouging torch capable of changing arc shape |
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| Publication Number | Publication Date |
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| CN119407295A true CN119407295A (en) | 2025-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202510022036.8A Pending CN119407295A (en) | 2025-01-07 | 2025-01-07 | A multi-gas plasma arc gouging torch capable of changing arc shape |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5393952A (en) * | 1991-02-28 | 1995-02-28 | Kabushiki Kaisha Komatsu Seisakusho | Plasma torch for cutting use with nozzle protection cap having annular secondary GPS passage and insulator disposed in the secondary gas passage |
| CN203887382U (en) * | 2014-06-04 | 2014-10-22 | 青岛东方铁塔股份有限公司 | Plasma air gouging and back chipping device for steel tube longitudinal seam |
| CN205184032U (en) * | 2015-11-26 | 2016-04-27 | 昆山乾坤机器制造有限公司 | Groove cutting machine |
| CN209969836U (en) * | 2019-05-27 | 2020-01-21 | 山东伊诺维森焊割科技有限公司 | Plasma gas planer |
| CN218612157U (en) * | 2022-08-24 | 2023-03-14 | 山东伊诺维森焊割科技有限公司 | Can cool off gouging cut of outer protective sheath |
-
2025
- 2025-01-07 CN CN202510022036.8A patent/CN119407295A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5393952A (en) * | 1991-02-28 | 1995-02-28 | Kabushiki Kaisha Komatsu Seisakusho | Plasma torch for cutting use with nozzle protection cap having annular secondary GPS passage and insulator disposed in the secondary gas passage |
| CN203887382U (en) * | 2014-06-04 | 2014-10-22 | 青岛东方铁塔股份有限公司 | Plasma air gouging and back chipping device for steel tube longitudinal seam |
| CN205184032U (en) * | 2015-11-26 | 2016-04-27 | 昆山乾坤机器制造有限公司 | Groove cutting machine |
| CN209969836U (en) * | 2019-05-27 | 2020-01-21 | 山东伊诺维森焊割科技有限公司 | Plasma gas planer |
| CN218612157U (en) * | 2022-08-24 | 2023-03-14 | 山东伊诺维森焊割科技有限公司 | Can cool off gouging cut of outer protective sheath |
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