CN2719473Y - Plasma welding gun - Google Patents
Plasma welding gun Download PDFInfo
- Publication number
- CN2719473Y CN2719473Y CN 200420034794 CN200420034794U CN2719473Y CN 2719473 Y CN2719473 Y CN 2719473Y CN 200420034794 CN200420034794 CN 200420034794 CN 200420034794 U CN200420034794 U CN 200420034794U CN 2719473 Y CN2719473 Y CN 2719473Y
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- China
- Prior art keywords
- gun body
- lower gun
- ceramic
- water channel
- cooling
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a plasma welding gun, which comprises a gun body housing, an upper gun body, a lower gun body, a ceramic insulation block, a ceramic centering block, an air spout, an electric pole, an electrode clamp, a regulating knob and a ceramic protective hood; a cooling water channel formed between the lower gun body core and the lower gun body core housing is arranged in the lower gun body; the cooling water channel is communicated with the connector of the water channel of the upper gun body and lower gun body, and forms a loop with headwaters; a shielding gas channel is formed by the gap which is arranged between the lower gun body core housing and the lower gun body housing jacket; the shielding gas channel is extended downward, and the exit is arranged between the air spout and the ceramic protective hood; a cooling water guide plate is arranged in the cooling water channel; the lower end exit of the external side of the lower gun body core housing is provided with uniform helical chute; the cross section of the cooling water channel arranged in the connector of the water channel of the upper gun body and the lower gun body is in V shape; the plasma welding gun provided by the applicant has good heat dispersion, good welding quality, long service life and high efficiency; thetemperature of the plasma beam of the plasma welding gun is higher than 10000 degree Celsius.
Description
Technical field
The utility model relates to welding technology field, relates to a kind of plasma gun specifically.
Background technology
Known plasma gun is by nozzle, protective cover, negative electrode and the cooling-water duct of upper cutting gun, intermediate insulation body, lower gun body, double as anode, is used to produce plasma and prevents that the inert gas passage of molten bath oxidation, the alloy powder passage of conveying scolder from constituting.Plasma gun when work, cathode point and near be in the hot environment, it also must have good cooling condition except making of exotic material such as tungsten cerium alloy.The negative electrode of known plasma gun such as French Patent (FRP) 2338105 disclosed plasma guns, though cooling-water duct is arranged, but owing to can not flowing, cooling water causes the dead band at water cavity near cathode point, the cooling water that enters this district is gasified rapidly by high temperature, formation high pressure prevention cooling water can not flow and enter this district again, and in fact this dead band can not get cooling.Because the cathode point heat radiation is bad, temperature is much higher relatively, makes the backwash adsorption phenomena serious, and cathode point is long perverse, even burns cathode point, causes the electric arc distortion, influences welding quality; So just must often remove backwash adsorbate and finishing cathode point.
Chinese patent z187210474 discloses a kind of plasma gun, it is attempted to overcome the bad backwash absorption that produces of the most advanced and sophisticated cooling of tungsten electrode of known plasma gun even burns the tungsten electrode point and make the electric arc distortion, designed a kind of new cooling structure, its solution is: the structure of Cathode Design Cheng Xin, make it by the body of rod, tungsten electrode, fittings body and interior pipe constitute, at the body of rod, form the directly aquaporin of cooling tungsten electrode between interior pipe and the fittings body, designs of nozzles is become top nozzle that each has cooling-water duct and the following nozzle that adapts with the conical surface, one annular boss is arranged on the male cone (strobilus masculinus) of upper right nozzle, on annular boss, have a plurality of passages, be used for the transferring metal powder.
The applicant thinks: French Patent (FRP) 2338105 disclosed plasma guns are because the cathode point heat radiation is bad, and temperature is much higher relatively, makes the backwash adsorption phenomena serious, and cathode point is long perverse, even burns cathode point, cause the electric arc distortion, influence welding quality; So just must often remove backwash adsorbate and finishing cathode point.The disclosed plasma gun of Chinese patent z187210474 exists the inadequate shortcoming of cooling heat dissipation equally.And the working temperature of known domestic plasma gun is 8000 degrees centigrade.
Technology contents
Goal of the invention of the present utility model is intended to overcome above-mentioned prior art and lacks limit, provides that a kind of cooling heat dissipation performance is good, welding quality is good, work long service life, plasma gun that efficient is high.
Invention order of the present utility model is achieved by following technical solution:
Plasma gun is made up of rifle body case, upper cutting gun, lower gun body, ceramic insulation piece, ceramic centering piece, nozzle, electrode, electrode holder, adjusting knob, ceramic protection cover, and wherein: upper cutting gun is connected and is formed by upper cutting gun core, upper cutting gun shell; Lower gun body is by the lower gun body core, lower gun body core shell, the lower gun body valve jacket is connected and forms, on, lower gun body all is positioned at the rifle body case, and also has a ceramic insulation piece between the two, there is screw thread the outer end of electrode holder and links to each other with adjusting knob, the outside of adjusting knob has screw thread to link to each other with the upper cutting gun core, lower gun body in-core at lower gun body is provided with a ceramic centering piece, electrode one end is positioned at upper cutting gun and links at electrode holder, the other end is positioned at lower gun body and passes ceramic centering piece, its tip is positioned at nozzle, nozzle is positioned at the lower gun body bottom, also is provided with a ceramic protection cover in the nozzle outside, and adjusting knob is positioned at the top of upper cutting gun; Rifle body case one side of plasma gun described in the utility model also is provided with one and goes up lower gun body water channel connector; there are cooling water channel and upper and lower rifle body to communicate respectively in the last lower gun body water channel connector; in lower gun body, form cooling-water duct between lower gun body core and the lower gun body core shell; this cooling-water duct communicates with last lower gun body water channel connector and forms the loop with the water source; gapped formation protection gas passage between lower gun body core shell, the lower gun body valve jacket; this protection gas passage extends downwards, and it exports between nozzle and ceramic protection cover.
In lower gun body, form in the cooling-water duct between lower gun body core and the lower gun body shell and also be provided with the cooling water baffler.
The exit, lower end, the outside of described lower gun body core shell is provided with uniform helical form skewed slot.
Described its cross section of cooling-water duct of going up in the lower gun body water channel connector is the v type.
The utility model compared with prior art has the following advantages:
At first be to go up lower gun body water channel connector to connect upward lower gun body, make cooling water can cool off lower gun body simultaneously, can well reduce the work temperature rise of electrode, the effect of cooling water baffler is to allow cooling water force cooling jet to reach better cooling-down effect, next is a lower gun body core shell, gapped formation protection gas passage between the lower gun body valve jacket, the lower end, the outside of lower gun body core shell is provided with uniform helical form skewed slot, replace original straight-through vent plug, during welding gun work, make protection gas form the air curtain that rotation is inwardly pressed, make the effective of gas shiled, the flame bundle is thinner, and energy is more concentrated; The 3rd is that the temperature of beam-plasma of this plasma gun is above 10000 degrees centigrade; The plasma gun cooling heat dissipation performance that the applicant is provided by above-mentioned technology solution is good, welding quality is good, work long service life, efficient height.
Description of drawings
Fig. 1 is structural representation of the present utility model (B-B);
Fig. 2 is structural representation of the present utility model (C-C);
Fig. 3 is structural representation of the present utility model (A-A);
Fig. 4 is structural representation of the present utility model (D-D);
Fig. 5 is the lower gun body water channel connector construction schematic diagram of going up of the present utility model;
Fig. 6 is the schematic diagram of the utility model lower gun body core shell;
Embodiment
Embodiment 1: in the drawings, label 1 is the rifle body case, label 2 is upper cutting guns, label 2-1 is the upper cutting gun core, label 2-2 is the upper cutting gun shell, label 3 is lower gun bodies, label 3-1 is the lower gun body core, label 3-2 is a lower gun body core shell, label 3-3 is the lower gun body valve jacket, label 4 is ceramic insulation pieces, label 5 is nozzles, label 6 is ceramic centering pieces, label 7 is to go up lower gun body water channel connector, label 8 is electrodes, label 9 is electrode holders, label 10 is adjusting knobs, label 11 is ceramic protection covers, label 12 is cooling water bafflers, label 13 is cooling-water ducts, label 14 is protection gas passages, label 15 is pikestaffs, label 16 is cooling water inlet pipes, label 17 is protection gas air inlet pipe, label 18 is cooling water outlet pipes, label 19 is work gas inlet pipes, label 20 is helical form skewed slots; Plasma gun is made up of rifle body case 1, upper cutting gun 2, lower gun body 3, ceramic insulation piece 4, ceramic centering piece 6, nozzle 5, electrode 8, electrode holder 9, adjusting knob 10, ceramic protection cover 11, and wherein: upper cutting gun 2 is welded by upper cutting gun core 2-1, upper cutting gun shell 2-2; Lower gun body 3 is welded by lower gun body core 3-1, lower gun body core shell 3-2, lower gun body valve jacket 3-3, and is last 2,3 rifle bodies all are positioned at rifle body case 1 down, and also has a ceramic insulation piece 4 between the two; There is screw thread the outer end of electrode holder 9 and links to each other with adjusting knob 10, the outside of adjusting knob 10 has screw thread to link to each other with upper cutting gun core 2-1, in the lower gun body core 3-1 of lower gun body 3, be provided with a ceramic centering piece 6, electrode 8 one ends link in electrode holder 9, the other end is positioned at lower gun body 3 and passes ceramic centering piece 6, and its tip is positioned at nozzle 5, and nozzle 5 is positioned at lower gun body 3 bottoms, also be provided with a ceramic protection cover 11 in nozzle 5 outsides, adjusting knob 10 is positioned at the top of upper cutting gun 2; Rifle body case 1 one sides of plasma gun described in the utility model also are provided with one and go up lower gun body water channel connector 7; in the last lower gun body water channel connector cooling-water duct 13 and last is arranged; lower gun body communicates respectively; described cooling-water duct 13 its cross sections of going up in the lower gun body water channel connector 7 are the v type; in lower gun body 3, form cooling-water duct 13 between lower gun body core 3-1 and the lower gun body core shell 3-2; and wherein also be provided with cooling water baffler 12; this cooling-water duct 13 communicates with last lower gun body water channel connector 7 and forms the loop with the water source; lower gun body core shell 3-2; gapped formation protection gas passage 14 between the lower gun body valve jacket 3-3; the exit, lower end, the outside of lower gun body core shell 3-2 is provided with uniform helical form skewed slot 20; this protection gas passage 14 extends downwards, and it exports between nozzle 5 and ceramic protection cover 11.
Claims (5)
1, a kind of plasma gun, be made up of rifle body case (1), upper cutting gun (2), lower gun body (3), ceramic insulation piece (4), ceramic centering piece (6), nozzle (5), electrode (8), electrode holder (9), adjusting knob (10), ceramic protection cover (11), wherein: upper cutting gun (2) is connected and is formed by upper cutting gun core (2-1), upper cutting gun shell (2-2); Lower gun body (3) is by lower gun body core (3-1), lower gun body core shell (3-2), lower gun body valve jacket (3-3) is connected and forms, on, lower gun body all is positioned at rifle body case (1), and also has a ceramic insulation piece (4) between the two, there is screw thread the outer end of electrode holder (9) and links to each other with adjusting knob (10), the outside of adjusting knob (10) has screw thread to link to each other with upper cutting gun core (2-1), in the lower gun body core (3-1) of lower gun body (3), be provided with a ceramic centering piece (6), electrode (8) one ends link in electrode holder (9), the other end passes ceramic centering piece (6) and its tip is positioned at nozzle (5), nozzle (5) is positioned at lower gun body (3) bottom, also be provided with a ceramic protection cover (11) in nozzle (5) outside, adjusting knob (10) is positioned at the top of upper cutting gun (2); It is characterized in that: rifle body case (1) one side of described plasma gun also is provided with one and goes up lower gun body water channel connector (7); cooling-water duct (13) and last is arranged in the last lower gun body water channel connector (7); lower gun body communicates respectively; in lower gun body (3), form cooling-water duct (13) between lower gun body core (3-1) and the lower gun body core shell (3-2); this cooling-water duct (13) communicates with last lower gun body water channel connector (7) and forms the loop with the water source; lower gun body core shell (3-2); gapped formation protection gas passage (14) between the lower gun body valve jacket (3-3); this protection gas passage (14) extends downwards, and it exports between nozzle (5) and ceramic protection cover (11).
2, plasma gun according to claim 1 is characterized in that: form between lower gun body core (3-1) and the lower gun body shell (3-2) in lower gun body (3) and also be provided with cooling water baffler (12) in the cooling-water duct (13).
3, plasma gun according to claim 1 is characterized in that the exit, lower end, the outside of described lower gun body core shell (3-2) is provided with uniform helical form skewed slot (20).
4, plasma gun according to claim 1 and 2 is characterized in that: the exit, lower end, the outside of described lower gun body core shell (3-2) is provided with uniform helical form skewed slot (20).
5, plasma gun according to claim 1 is characterized in that: described its cross section of cooling-water duct (13) of going up in the lower gun body water channel connector (7) is the v type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420034794 CN2719473Y (en) | 2004-05-18 | 2004-05-18 | Plasma welding gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420034794 CN2719473Y (en) | 2004-05-18 | 2004-05-18 | Plasma welding gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2719473Y true CN2719473Y (en) | 2005-08-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420034794 Expired - Fee Related CN2719473Y (en) | 2004-05-18 | 2004-05-18 | Plasma welding gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2719473Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101434000B (en) * | 2008-12-13 | 2011-03-23 | 东方电气集团东方汽轮机有限公司 | Small-interior diameter deep hole plasma spray welding gun |
| CN102229021A (en) * | 2011-06-17 | 2011-11-02 | 浙江五环钛业股份有限公司 | Combined plasma welding gun |
| CN101537527B (en) * | 2008-03-19 | 2012-08-22 | 通用汽车环球科技运作公司 | Heat pipe cooling system for use with a welding torch |
| CN103930232A (en) * | 2011-11-09 | 2014-07-16 | 米亚基欧洲有限责任公司 | Electrical insulating element made of ceramic material for electrical processing device, corresponding processing device |
| CN108145294A (en) * | 2016-12-02 | 2018-06-12 | 唐山开元焊接自动化技术研究所有限公司 | A kind of high powered plasma welding gun |
| CN110870388A (en) * | 2017-03-16 | 2020-03-06 | 欧瑞康美科（美国）公司 | Optimized neutral stack cooling for plasma gun |
| CN112517916A (en) * | 2020-11-23 | 2021-03-19 | 张爽 | Device and method for preparing spherical powder by using tubular electrode and spray welding |
| CN113993264A (en) * | 2021-11-05 | 2022-01-28 | 北京环境特性研究所 | Plasma torch and cooling method thereof |
-
2004
- 2004-05-18 CN CN 200420034794 patent/CN2719473Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101537527B (en) * | 2008-03-19 | 2012-08-22 | 通用汽车环球科技运作公司 | Heat pipe cooling system for use with a welding torch |
| CN101434000B (en) * | 2008-12-13 | 2011-03-23 | 东方电气集团东方汽轮机有限公司 | Small-interior diameter deep hole plasma spray welding gun |
| CN102229021A (en) * | 2011-06-17 | 2011-11-02 | 浙江五环钛业股份有限公司 | Combined plasma welding gun |
| CN102229021B (en) * | 2011-06-17 | 2016-01-20 | 浙江五环钛业股份有限公司 | Combined plasma welding gun |
| CN103930232A (en) * | 2011-11-09 | 2014-07-16 | 米亚基欧洲有限责任公司 | Electrical insulating element made of ceramic material for electrical processing device, corresponding processing device |
| CN103930232B (en) * | 2011-11-09 | 2018-01-19 | 米亚基欧洲有限责任公司 | For electric machining device, electrical insulation parts that ceramic material is done, corresponding processing unit (plant) |
| CN108145294A (en) * | 2016-12-02 | 2018-06-12 | 唐山开元焊接自动化技术研究所有限公司 | A kind of high powered plasma welding gun |
| CN108145294B (en) * | 2016-12-02 | 2023-12-08 | 唐山开元焊接自动化技术研究所有限公司 | High-power plasma welding gun |
| CN110870388A (en) * | 2017-03-16 | 2020-03-06 | 欧瑞康美科（美国）公司 | Optimized neutral stack cooling for plasma gun |
| CN112517916A (en) * | 2020-11-23 | 2021-03-19 | 张爽 | Device and method for preparing spherical powder by using tubular electrode and spray welding |
| CN113993264A (en) * | 2021-11-05 | 2022-01-28 | 北京环境特性研究所 | Plasma torch and cooling method thereof |
| CN113993264B (en) * | 2021-11-05 | 2023-11-14 | 北京环境特性研究所 | Plasma torch and cooling method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |