CN110315177B - Accelerating gas circuit device for plasma power supply cutting torch head - Google Patents
Accelerating gas circuit device for plasma power supply cutting torch head Download PDFInfo
- Publication number
- CN110315177B CN110315177B CN201910721823.6A CN201910721823A CN110315177B CN 110315177 B CN110315177 B CN 110315177B CN 201910721823 A CN201910721823 A CN 201910721823A CN 110315177 B CN110315177 B CN 110315177B
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- Prior art keywords
- pipe
- section
- air pipe
- cutting
- cutting air
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 241000271510 Agkistrodon contortrix Species 0.000 claims abstract description 23
- 239000000498 cooling water Substances 0.000 claims abstract description 21
- 238000005507 spraying Methods 0.000 claims abstract description 7
- 230000001133 acceleration Effects 0.000 claims abstract description 5
- 230000001681 protective effect Effects 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 230000002457 bidirectional effect Effects 0.000 abstract description 5
- 238000001816 cooling Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 24
- 239000002184 metal Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000000243 solution 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Plasma Technology (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses an accelerating gas circuit device of a plasma power supply cutting torch head, which comprises a copper head, a cutting gas pipe, a cooling water pipe, a protection gas pipe and a spraying mechanism, wherein the front end of the cooling water pipe is connected with a water return pipe; the spraying mechanism comprises an electrode base, an electrode and a nozzle, and a nozzle cap is arranged on the nozzle; the cutting air pipe comprises a first section of cutting air pipe, a second section of cutting air pipe and a third section of cutting air pipe, the third section of cutting air pipe is connected with the nozzle, the diameter of the second section of cutting air pipe is smaller than that of the first section of cutting air pipe, and the first section of cutting air pipe is provided with a first cutting air accelerating valve and a second cutting air accelerating valve; the cooling water pipe, the second section cutting air pipe, the third section cutting air pipe and the protection air pipe are all arranged inside the copper head, a copper head jacket is arranged on the outer side of the copper head, and the rear end of the copper head jacket is connected with a jacket connecting pipe. The invention increases the three-time acceleration technology of the multipath air flow, improves the cutting efficiency, has better cooling effect and realizes the bidirectional control of the air flow.
Description
Technical Field
The invention relates to the technical field of plasma cutting machines, in particular to an accelerating gas circuit device of a plasma power supply cutting torch head.
Background
In the machining process, the plasma cutting is a machining method which utilizes the heat of a high-temperature plasma arc to locally melt and evaporate metal at a workpiece notch, and removes the molten metal by the momentum of high-speed plasma to form the notch, and the plasma cutting can be matched with different working gases to cut various metals which are difficult to cut by oxygen. The air plasma cutting machine is mainly applied to cutting of metals and nonmetal, belongs to the technical field of air plasma cutting equipment, and is a cutting method by utilizing high-temperature high-speed heat flow generated by high-energy density compression electric arc. The principle is that part of metal is melted and evaporated by means of high-temperature high-speed plasma arc and flame flow thereof, and blown off the matrix, and a cutting seam is formed along with the movement of the plasma arc cutting torch. The prior plasma cutting machine distributes two paths of compressed air from an air chamber after entering a cutting torch, namely plasma gas and auxiliary gas are formed. The plasma gas arc acts to melt the metal, while the assist gas cools the various components of the torch and blows the melted metal away. The direction of the air flow is controlled in one direction, the cutting speed is limited, high-current cutting cannot be realized, and the cooling effect is poor.
Disclosure of Invention
The invention aims to provide an accelerating gas circuit device of a plasma power supply cutting torch head, which increases a multi-path airflow three-time accelerating technology, improves cutting efficiency, has a good cooling effect and realizes airflow bidirectional control.
In order to achieve the above purpose, the invention provides a plasma power supply cutting torch head acceleration gas circuit device, which comprises a copper head, a cutting gas pipe, a cooling water pipe, a protection gas pipe and a spraying mechanism, wherein the spraying mechanism is arranged at the tail end parts of the protection gas pipe and the cutting gas pipe, the cutting gas pipe and the protection gas pipe are respectively arranged at two sides of the cooling water pipe, and the front end of the cooling water pipe is connected with a water return pipe;
The spraying mechanism comprises an electrode base arranged on the outer wall of the cooling water pipe, an electrode arranged on the electrode base and a nozzle arranged at the end part of the electrode, and a nozzle cap is arranged on the nozzle;
The cutting air pipe comprises a first section of cutting air pipe, a second section of cutting air pipe connected with the first section of cutting air pipe and a third section of cutting air pipe connected with the second section of cutting air pipe, the third section of cutting air pipe is connected with the nozzle, the diameter of the second section of cutting air pipe is smaller than that of the first section of cutting air pipe, and a first cutting air accelerating valve and a second cutting air accelerating valve are arranged on the first section of cutting air pipe;
The cooling water pipe, the second section cutting air pipe, the third section cutting air pipe and the protection air pipe are all arranged inside the copper head, a copper head jacket is arranged on the outer side of the copper head, and the rear end of the copper head jacket is connected with a jacket connecting pipe.
Preferably, a protective cap is arranged at the front end part of the copper head jacket, and a protective gas cap is arranged at the front end part of the protective cap.
Preferably, a swirl ring is arranged on the outer side of the nozzle.
Preferably, the front end part of the first section of cutting air pipe is provided with a cutting air tongue, and the outer part of the cutting air tongue is provided with a cutting air cap.
Preferably, the front end part of the water return pipe is provided with a water return pipe tongue, the water return pipe tongue is connected with a water return pipe connector, the water return pipe connector is connected with the water return pipe tongue through a water return pipe screw cap, and a water return pipe cap is arranged at the joint of the water return pipe and the cooling water pipe.
Preferably, the protection air pipe comprises a first section of protection air pipe, a second section of protection air pipe connected with the first section of protection air pipe and a third section of protection air pipe connected with the second section of protection air pipe, the third section of protection air pipe is connected with the nozzle, and a first protection air accelerating valve and a second protection air accelerating valve are arranged on the first section of protection air pipe.
Preferably, the front end part of the first section of protection air pipe is provided with a protection air tongue, and the outside of the protection air tongue is provided with a protection air cap.
Therefore, the plasma power supply cutting torch head accelerating gas circuit device adopting the structure increases the three-time accelerating technology of multipath gas flow, improves the cutting efficiency, has better cooling effect and realizes the bidirectional control of the gas flow.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
FIG. 1 is a schematic diagram of an embodiment of an accelerating gas path device for a plasma power supply torch head according to the present invention.
Detailed Description
Examples
Fig. 1 is a schematic structural diagram of an embodiment of a plasma power supply cutting torch head accelerating air circuit device, and as shown in the drawing, the invention provides a plasma power supply cutting torch head accelerating air circuit device, which comprises a copper head 1, a cutting air pipe 2, a cooling water pipe 3, a protection air pipe 4 and an injection mechanism 5, wherein the injection mechanism 5 is arranged at the tail end parts of the protection air pipe 4 and the cutting air pipe 2, the cutting air pipe 2 and the protection air pipe 4 are respectively arranged at two sides of the cooling water pipe 3, and the front end of the cooling water pipe 3 is connected with a water return pipe 6; the spraying mechanism 5 comprises an electrode base 51 arranged on the outer wall of the cooling water pipe 3, an electrode 52 arranged on the electrode base 51 and a nozzle 53 arranged at the end part of the electrode 52, a nozzle cap 54 is arranged on the nozzle 53, a vortex ring 55 is arranged on the outer side of the nozzle 53, and the nozzle is of a built-in structure, so that the pollution of cutting dust to the nozzle is reduced; the cutting air pipe 2 comprises a first section of cutting air pipe 21, a second section of cutting air pipe 22 connected with the first section of cutting air pipe 21 and a third section of cutting air pipe 23 connected with the second section of cutting air pipe 22, the third section of cutting air pipe 23 is connected with a nozzle 53, the diameter of the second section of cutting air pipe 22 is smaller than that of the first section of cutting air pipe 21, a first cutting air accelerating valve 24 and a second cutting air accelerating valve 25 are arranged on the first section of cutting air pipe 21, and air flow multiple acceleration can be realized by arranging the three sections of cutting air pipes and the two cutting accelerating valves, so that the cutting efficiency is improved; the front end part of the first section of cutting air pipe 21 is provided with a cutting air tongue 26, and the outside of the cutting air tongue 26 is provided with a cutting air cap 27, so that the bidirectional control of the cutting air flow can be realized.
The cooling water pipe 3, the second section cutting air pipe 22, the third section cutting air pipe 23 and the protection air pipe 4 are all arranged inside the copper head 1, a copper head outer sleeve 7 is arranged on the outer side of the copper head 1, and the rear end of the copper head outer sleeve 7 is connected with an outer sleeve connecting pipe 8. The front end part of the copper head jacket 7 is provided with a protective cap 9, the front end part of the protective cap 9 is provided with a protective gas cap 10, and the cut workpiece is cooled.
The front end part of the water return pipe 6 is provided with a water return pipe tongue 11, the water return pipe tongue 11 is connected with a water return pipe connector 12, the water return pipe connector 12 is connected with the water return pipe tongue 11 through a water return pipe screw cap 13, and a water return pipe cap 14 is arranged at the joint of the water return pipe 6 and the cooling water pipe 3.
The protection air pipe 4 comprises a first section of protection air pipe 41, a second section of protection air pipe 42 connected with the first section of protection air pipe 41 and a third section of protection air pipe 43 connected with the second section of protection air pipe 42, the third section of protection air pipe 43 is connected with a nozzle 53, and a first protection air accelerating valve 44 and a second protection air accelerating valve 45 are arranged on the first section of protection air pipe 41; the front end portion of the first segment of the protection air pipe 41 is provided with a protection air tongue 46, and the outside of the protection air tongue 46 is provided with a protection air cap 47.
Therefore, the plasma power supply cutting torch head accelerating gas circuit device adopting the structure increases the three-time accelerating technology of multipath gas flow, improves the cutting efficiency, has better cooling effect and realizes the bidirectional control of the gas flow.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting it, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the invention can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the invention.
Claims (2)
1. A plasma power supply cutting torch head acceleration gas circuit device is characterized in that:
The device comprises a copper head, a cutting air pipe, a cooling water pipe, a protection air pipe and an injection mechanism, wherein the injection mechanism is arranged at the tail end parts of the protection air pipe and the cutting air pipe, the cutting air pipe and the protection air pipe are respectively arranged at two sides of the cooling water pipe, and the front end of the cooling water pipe is connected with a water return pipe;
The spraying mechanism comprises an electrode base arranged on the outer wall of the cooling water pipe, an electrode arranged on the electrode base and a nozzle arranged at the end part of the electrode, and a nozzle cap is arranged on the nozzle;
The cutting air pipe comprises a first section of cutting air pipe, a second section of cutting air pipe connected with the first section of cutting air pipe and a third section of cutting air pipe connected with the second section of cutting air pipe, the third section of cutting air pipe is connected with the nozzle, the diameter of the second section of cutting air pipe is smaller than that of the first section of cutting air pipe, and a first cutting air accelerating valve and a second cutting air accelerating valve are arranged on the first section of cutting air pipe; the cooling water pipe, the second section cutting air pipe, the third section cutting air pipe and the protection air pipe are all arranged inside the copper head, a copper head jacket is arranged on the outer side of the copper head, and the rear end of the copper head jacket is connected with a jacket connecting pipe;
the outside of the nozzle is provided with a vortex ring;
The front end part of the first section of cutting air pipe is provided with a cutting air tongue, and the outer part of the cutting air tongue is provided with a cutting air cap;
the front end part of the water return pipe is provided with a water return pipe tongue, the water return pipe tongue is connected with a water return pipe connector, the water return pipe connector is connected with the water return pipe tongue through a water return pipe screw cap, and a water return pipe cap is arranged at the joint of the water return pipe and the cooling water pipe;
The protection air pipe comprises a first section of protection air pipe, a second section of protection air pipe connected with the first section of protection air pipe and a third section of protection air pipe connected with the second section of protection air pipe, the third section of protection air pipe is connected with the nozzle, and a first protection air accelerating valve and a second protection air accelerating valve are arranged on the first section of protection air pipe;
The front end part of the first section of protection air pipe is provided with a protection air tongue, and the outside of the protection air tongue is provided with a protection air cap.
2. The plasma power supply torch head acceleration gas circuit device of claim 1, wherein: the front end part of the copper head jacket is provided with a protective cap, and the front end part of the protective cap is provided with a protective gas cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910721823.6A CN110315177B (en) | 2019-08-06 | 2019-08-06 | Accelerating gas circuit device for plasma power supply cutting torch head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910721823.6A CN110315177B (en) | 2019-08-06 | 2019-08-06 | Accelerating gas circuit device for plasma power supply cutting torch head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110315177A CN110315177A (en) | 2019-10-11 |
| CN110315177B true CN110315177B (en) | 2024-09-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910721823.6A Active CN110315177B (en) | 2019-08-06 | 2019-08-06 | Accelerating gas circuit device for plasma power supply cutting torch head |
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| Country | Link |
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| CN (1) | CN110315177B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210359763U (en) * | 2019-08-06 | 2020-04-21 | 河北瓦尔丁科技有限公司 | Plasma power supply cutting torch head accelerating gas circuit device |
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| NL259265A (en) * | 1960-10-06 | |||
| FR1487162A (en) * | 1966-07-21 | 1967-06-30 | Tanaka Seisakusho Kk | Gas cutting method and device, using shielding gas |
| US5109150A (en) * | 1987-03-24 | 1992-04-28 | The United States Of America As Represented By The Secretary Of The Navy | Open-arc plasma wire spray method and apparatus |
| CN2063457U (en) * | 1989-06-08 | 1990-10-10 | 张天星 | High efficiency quick cutting-off nozzle |
| 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 |
| EP0790756B2 (en) * | 1991-04-12 | 2008-08-20 | Hypertherm, Inc. | Plasma arc cutting process using an oxygen-rich gas shield |
| CA2409420C (en) * | 1991-04-12 | 2005-09-20 | Hypertherm, Inc. | Plasma arc cutting process and apparatus using an oxygen-rich gas shield |
| EP0794697B2 (en) * | 1991-04-12 | 2009-12-16 | Hypertherm, Inc. | Plasma arc cutting apparatus |
| JP2689310B2 (en) * | 1994-11-30 | 1997-12-10 | 株式会社小松製作所 | Plasma torch for cutting and plasma cutting method |
| CN1179124A (en) * | 1995-02-13 | 1998-04-15 | 株式会社小松制作所 | Plasma cutting method |
| DE29919142U1 (en) * | 1999-10-30 | 2001-03-08 | Agrodyn Hochspannungstechnik GmbH, 33803 Steinhagen | Plasma nozzle |
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| JP4648568B2 (en) * | 2001-05-15 | 2011-03-09 | 小池酸素工業株式会社 | Plasma torch |
| DE102007031534A1 (en) * | 2007-06-28 | 2009-01-02 | Technische Universität Dresden | Tungsten inert gas welding torch |
| US7935909B2 (en) * | 2007-09-04 | 2011-05-03 | Thermal Dynamics Corporation | Hybrid shield device for a plasma arc torch |
| US8940225B2 (en) * | 2010-02-25 | 2015-01-27 | Gesellschaft Für Autogenmaschinen Und -Geräte Mbh | Nozzle for cutting steel workpieces and workpieces made of iron alloys |
| JP5852829B2 (en) * | 2011-09-26 | 2016-02-03 | トーカロ株式会社 | Plasma spraying device with acceleration nozzle |
| US9686848B2 (en) * | 2014-09-25 | 2017-06-20 | Lincoln Global, Inc. | Plasma cutting torch, nozzle and shield cap |
| EP4219057A3 (en) * | 2016-03-30 | 2023-08-16 | Hypertherm, Inc. | Controlling and delivering gases in a plasma arc torch and related systems and methods |
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2019
- 2019-08-06 CN CN201910721823.6A patent/CN110315177B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210359763U (en) * | 2019-08-06 | 2020-04-21 | 河北瓦尔丁科技有限公司 | Plasma power supply cutting torch head accelerating gas circuit device |
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| CN110315177A (en) | 2019-10-11 |
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