CN114226929A - High-efficiency cooling plate type narrow-gap MAG/MIG welding gun - Google Patents
High-efficiency cooling plate type narrow-gap MAG/MIG welding gun Download PDFInfo
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- CN114226929A CN114226929A CN202111572063.0A CN202111572063A CN114226929A CN 114226929 A CN114226929 A CN 114226929A CN 202111572063 A CN202111572063 A CN 202111572063A CN 114226929 A CN114226929 A CN 114226929A
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- welding gun
- bridge
- flow channel
- channel
- water
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- 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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/24—Features related to electrodes
- B23K9/26—Accessories for electrodes, e.g. ignition tips
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/24—Features related to electrodes
- B23K9/28—Supporting devices for electrodes
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/24—Features related to electrodes
- B23K9/28—Supporting devices for electrodes
- B23K9/285—Cooled electrode holders
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
Abstract
The invention discloses a plate type narrow-gap MAG/MIG welding gun with efficient cooling, which comprises a welding gun body, a bridge flow channel, a bridge cover plate, a water inlet flow channel and a water return flow channel, wherein a wire feeding channel is arranged in the middle of the welding gun body, gas feeding channels are respectively positioned on two sides of the wire feeding channel, the water inlet flow channel and the water return flow channel are respectively and axially arranged on two sides of the gas feeding channel, the bridge flow channel is arranged at a mounting screw hole part of a bottom conductive nozzle of the welding gun and is positioned on two sides of the welding gun body in the thickness direction and clamps the mounting screw hole of the conductive nozzle in the middle, and the water inlet flow channel and the water return flow channel are communicated through the bridge flow channel. Under the continuous long-term work of the invention, the body temperature of the welding gun is always kept at the given circulating water temperature, and the long-term constancy of the welding current and voltage is kept. The welding gun has extremely high electric insulation capacity with the two side walls of the groove. The service life of the contact tube is greatly prolonged. Compared with the traditional narrow gap welding gun, the service life of the welding gun is prolonged by tens of times.
Description
Technical Field
The invention belongs to the technical field of welding, and particularly relates to a plate type narrow-gap MAG/MIG welding gun with efficient cooling.
Background
The narrow gap MAG/MIG automatic welding technology has become a new pet in the field of 21 st century arc welding technology and a technological progress direction after more than half century of technological development and application. The narrow-gap MAG/MIG automatic welding gun is the first of the core technologies of the technology, and the narrow-gap MAG/MIG automatic welding gun cannot be practically applied without being reliable. Although the development continues for over half a century, the prior art still has the following limitations that restrict the wider application of the technology.
The invention discloses an ultra-narrow gap consumable electrode gas shielded automatic welding torch and a manufacturing method thereof, and discloses a design and manufacturing method of an MAG/MIG welding gun with a pipe-plate composite structure and an integral plate type narrow gap. The invention patent 201810399749.6 discloses a bent narrow-gap MAG/MIG welding gun, and discloses a design and manufacturing method of a narrow-gap gas shielded welding gun applied in a narrow space. The invention discloses a narrow-gap/ultra-narrow-gap gas shielded welding gun ZL201410487955.4 and a manufacturing method thereof, and discloses a design and manufacturing method of an integral plate type narrow-gap MAG/MIG welding gun. The invention discloses a self-circulation water-cooling ultra-narrow gap MAG/MIG welding gun based on non-contact surface heat conduction, and discloses a design and a manufacturing method of a split plate type narrow gap MAG/MIG welding gun.
The cooling effect of the narrow-gap gas shielded welding gun directly determines the service life of the narrow-gap welding gun and the stability of current and voltage, and the plate-type narrow-gap welding gun of Japan (the technology has the longest development history and the most product technology application in the world) has the service life of only about one and a half months due to the unsatisfactory cooling technology. It is this limitation of the prior art that has significantly restricted the wider application of narrow gap MAG/MIG automatic welding techniques.
Disclosure of Invention
The invention aims to provide a plate type narrow-gap MAG/MIG welding gun with efficient cooling, wherein cooling water flows through a high-temperature region, the cooling effect is good, the long-term constancy of welding current and voltage is kept, and the service life of a contact tube and the service life of the welding gun are prolonged.
In order to achieve the purpose, the invention provides the following scheme:
a plate type narrow-gap MAG/MIG welding gun with efficient cooling comprises a welding gun body, a bridge flow passage, a bridge cover plate, a water inlet flow passage and a water return flow passage, wherein a wire feeding passage is arranged in the middle of the welding gun body, a gas feeding passage is respectively positioned on two sides of the wire feeding passage, the water inlet flow passage and the water return flow passage are respectively and axially arranged on two sides of the gas feeding passage, the bridge flow passage is arranged at a mounting screw hole part of a bottom conductive nozzle of the welding gun and is positioned on two sides of the welding gun body in the thickness direction and clamps the mounting screw hole of the conductive nozzle in the middle, and the water inlet flow passage and the water return flow passage are communicated through the bridge flow passage.
Furthermore, the bridge-road part structure communicated with the water inlet flow passage and the water return flow passage is composed of a bridge-road flow passage and a bridge-road cover plate, a plurality of parallel groove structures are arranged in front of and behind the conductive nozzle of the welding gun body, a plurality of parallel groove structures are also arranged on one side, fixedly connected with the welding gun body, of the bridge-road cover plate, and the groove structures on the welding gun body and the bridge-road cover plate are symmetrically arranged and enclose to form the complete bridge-road flow passage.
Further, the total area of the bridge flow passages is consistent with the area of the water inlet flow passage or the water return flow passage.
Further, the cross-sectional shape of the bridge flow path is rectangular or circular.
Further, the welding gun cooling device further comprises a constant-temperature water cooler, wherein the constant-temperature water cooler provides circulating cooling water for the welding gun, and the circulating cooling water is purified water or distilled water.
Compared with the prior art, the invention has the beneficial effects that:
the narrow-gap MAG/MIG automatic welding gun has the following remarkable advantages: 1. under the continuous long-term work of welding gun, the body temperature of welding gun is kept at the lower given circulating water temperature all the time, has kept the long-term constancy of welding current, voltage. 2. The welding gun has extremely high electric insulation capacity with the two side walls of the groove. 3. The service life of the contact tube is greatly prolonged. 4. Compared with the traditional narrow gap welding gun, the service life of the welding gun is prolonged by tens of times.
Drawings
FIG. 1 is a schematic illustration of the position of a narrow gap MAG/MIG welding gun circulation water path.
FIG. 2 is a schematic view of the location of the flow paths of the bridge.
FIG. 3 is a schematic view of a bridge flow path.
FIG. 4 is a side view of the bridge cover plate.
In the figure: 1. the welding gun comprises a welding gun body, a water inlet flow channel, a water return flow channel, a right primary flow channel, a left primary flow channel, a wire feeding channel, a bridge cover plate, a ceramic nozzle, a welding wire, a bridge circuit, an electric arc, a bridge circuit and a contact nozzle screw hole, wherein the welding gun body comprises 2 parts of a water inlet flow channel, 3 parts of a water return flow channel, 4 parts of a right primary flow channel, 5 parts of a left primary flow channel, 6 parts of a wire feeding channel, 7 parts of a bridge circuit cover plate, 8 parts of a ceramic nozzle, 9 parts of a welding wire, 10 parts of an electric arc, 11 parts of a bridge circuit flow channel and 12 parts of a contact nozzle screw hole.
Detailed Description
The technical solution and the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
For a better understanding of the present invention, the present invention is further illustrated below with reference to specific examples, which are provided for the purpose of illustration only and are not intended to limit the scope of the present invention.
Example 1
As shown in figures 1-4, the narrow-gap MAG/MIG welding gun with high-efficiency cooling effect mainly comprises a welding gun body 1, a bridge flow passage 11, a bridge cover plate 7, a water inlet flow passage 2, a water return flow passage 3 and a constant-temperature water cooler. The integral plate type narrow-gap MAG/MIG automatic welding gun is made of an integral material with integral high heat conductivity coefficient and high electric conductivity.
The constant temperature circulating cooling water of the welding gun consists of a water inlet flow passage 2, a water return flow passage 3 and a bridge flow passage 11. The water inlet flow passage 2 and the water return flow passage 3 are respectively arranged at two sides of a wire feeding channel 6 and a gas feeding flow passage of the welding gun. The wire feeding channel 6 is arranged in the middle, the water inlet channel 2 is arranged beside the left air feeding channel 5, and the water return channel 3 is arranged beside the right air feeding channel 4. The left and right positions of the water inlet flow passage 2 and the water return flow passage 3 can be freely exchanged. The bridge flow passage 11 is arranged at the position of a mounting screw hole 12 of a conductive nozzle at the bottom of the welding gun, namely the mounting screw hole 12 of the conductive nozzle is positioned in the middle of the thickness direction of the welding gun, and the water flow passages of the bridge flow passage are arranged in front of and behind the mounting screw hole 12 of the conductive nozzle. The water flow channels 11 in front of and behind the contact tube mounting screw hole 12 are not communicated with the contact tube screw hole 12.
The bridge part structure for communicating the water inlet flow passage 2 and the water return flow passage 3 of the welding gun body 1 is composed of a bridge flow passage 11 and a bridge cover plate 7. The welding gun body 7 is provided with a plurality of parallel groove structures in front of and behind the conductive nozzle, one side of the road and bridge cover plate 7 fixedly connected with the welding gun body 1 is also provided with a plurality of parallel groove structures, and the groove structures on the welding gun body 1 and the road and bridge cover plate 7 are symmetrically arranged and enclose to form a complete bridge flow passage. Namely, half of the flow area of the bridge flow path 11 is formed in the welding torch body 1, and the other half is formed in the bridge cover plate 7. When in assembly, the bridge circuit cover plate 7 is welded with a half flow channel on the welding gun body 1, and then a complete bridge circuit flow channel 11 is formed. The bridge flow passages 11 provided in the torch body 1 are located in front of and behind the contact tip mounting screw hole 12 and have a symmetrical structure.
In the above embodiment, the bridge flow paths 11 are located forward and rearward of the contact tip mounting screw hole 12, and the total area of the sets thereof coincides with the area of the water inlet flow path 2 or the water return flow path 3. The bridge flow path 11 has a rectangular or circular cross-sectional shape. Due to size limitations, the bridge cover plate 7 is circular when it is thin and rectangular when it is thick.
Circulating cooling water for cooling the welding gun is provided by a constant-temperature water cooler. The working temperature of the cooling circulating water can be arbitrarily set within a certain range. The circulating cooling water is purified water or distilled water.
Example 2
In the embodiment 2, the thickness of the welding gun body 1 is 7.2mm, the diameter of the welding wire 9 is 1.2mm, the constant-temperature water chiller is a box-type industrial water chiller, the limit treatment capacity is less than or equal to 1.5T/h, and the water outlet temperature is 5-20 ℃. The other structures are the same as those in embodiment 1.
Example 3
In example 3, the thickness of the welding torch body 1 is 7.2mm, the bridge flow path 11 is a rectangular groove, the width of the groove is 2.5mm, and the depth of the groove is 0.3 mm. . The other structures are the same as those in embodiment 1.
Finally, it should be noted that: the above is only used to illustrate the technical solution of the present invention, and not to limit it; although the invention has been described in detail with reference to specific embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may be modified or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The efficient-cooling plate type narrow-gap MAG/MIG welding gun is characterized by comprising a welding gun body, a bridge flow channel, a bridge cover plate, a water inlet flow channel and a water return flow channel, wherein a wire feeding channel is arranged in the middle of the welding gun body, a gas feeding channel is respectively positioned on two sides of the wire feeding channel, the water inlet flow channel and the water return flow channel are respectively and axially arranged on two sides of the gas feeding channel, the bridge flow channel is arranged at a mounting screw hole part of a bottom conductive nozzle of the welding gun and is positioned on two sides of the welding gun body in the thickness direction and clamps the mounting screw hole of the conductive nozzle in the middle, and the water inlet flow channel and the water return flow channel are communicated through the bridge flow channel.
2. An MAG/MIG welding gun with high cooling efficiency and narrow plate gap as defined in claim 1, wherein the bridge part structure connecting the water inlet channel and the water return channel is composed of a bridge channel and a bridge cover plate, the welding gun body is provided with a plurality of parallel groove structures in front of and behind the contact tip, one side of the bridge cover plate fixedly connected with the welding gun body is also provided with a plurality of parallel groove structures, and the groove structures on the welding gun body and the bridge cover plate are symmetrically arranged and enclose to form a complete bridge channel.
3. An efficient cooled plate type narrow gap MAG/MIG welding gun as claimed in claim 1 wherein the total area of the bridge flow paths collectively is the same as the area of the water inlet flow path or the water return flow path.
4. An efficient cooling plate type narrow gap MAG/MIG welding gun as claimed in claim 1 wherein the cross-sectional shape of the bridge flow path is rectangular or circular.
5. An efficient cooling plate type narrow gap MAG/MIG welding gun as claimed in claim 1 further comprising a constant temperature water chiller providing circulating cooling water for the welding gun, the circulating cooling water being purified or distilled water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111572063.0A CN114226929A (en) | 2021-12-21 | 2021-12-21 | High-efficiency cooling plate type narrow-gap MAG/MIG welding gun |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111572063.0A CN114226929A (en) | 2021-12-21 | 2021-12-21 | High-efficiency cooling plate type narrow-gap MAG/MIG welding gun |
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| CN114226929A true CN114226929A (en) | 2022-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111572063.0A Pending CN114226929A (en) | 2021-12-21 | 2021-12-21 | High-efficiency cooling plate type narrow-gap MAG/MIG welding gun |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3220242A1 (en) * | 1982-05-28 | 1983-12-01 | Siemens AG, 1000 Berlin und 8000 München | Narrow-gap welding head |
| CN2234841Y (en) * | 1995-07-13 | 1996-09-11 | 西北工业大学 | Narrow gap consumable-electrode argon arc welding gun |
| CN101143401A (en) * | 2007-10-19 | 2008-03-19 | 重庆大学 | Moderate and high strength large-thickness component electromagnetic controlling narrow gap or ultra-narrow gap pulse efflux molten electrode gas-shield welding method and equipment |
| CN103203531A (en) * | 2013-04-28 | 2013-07-17 | 昆山日皓焊切器材有限公司 | Argon welding water-cooled welding gun |
| CN204381642U (en) * | 2015-01-12 | 2015-06-10 | 福建省长乐市华拓五金有限公司 | The fixed MIG welding gun of a kind of blast-furnace tuyere welding water-cooled |
| CN105689849A (en) * | 2016-03-28 | 2016-06-22 | 武汉纳瑞格智能设备有限公司 | Gas distributing device for rear-mounted narrow gas/ultra-narrow gap gas shield welding gun |
| CN106392276A (en) * | 2016-11-22 | 2017-02-15 | 江苏阿斯美特精工科技有限公司 | CoTIG welding gun capable of compressing electric arc and welding method |
| CN109262117A (en) * | 2018-10-17 | 2019-01-25 | 广东福维德焊接股份有限公司 | A kind of efficiently cooling lockhole effect TIG deep penetration welding welding gun |
| CN111390358A (en) * | 2020-04-26 | 2020-07-10 | 江苏科技大学 | Rocking/rotating arc consumable electrode gas shielded welding torch and method of using same |
| CN111496358A (en) * | 2020-05-30 | 2020-08-07 | 山东平云智能装备有限公司 | Narrow-gap tungsten electrode argon arc welding gun |
-
2021
- 2021-12-21 CN CN202111572063.0A patent/CN114226929A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3220242A1 (en) * | 1982-05-28 | 1983-12-01 | Siemens AG, 1000 Berlin und 8000 München | Narrow-gap welding head |
| CN2234841Y (en) * | 1995-07-13 | 1996-09-11 | 西北工业大学 | Narrow gap consumable-electrode argon arc welding gun |
| CN101143401A (en) * | 2007-10-19 | 2008-03-19 | 重庆大学 | Moderate and high strength large-thickness component electromagnetic controlling narrow gap or ultra-narrow gap pulse efflux molten electrode gas-shield welding method and equipment |
| CN103203531A (en) * | 2013-04-28 | 2013-07-17 | 昆山日皓焊切器材有限公司 | Argon welding water-cooled welding gun |
| CN204381642U (en) * | 2015-01-12 | 2015-06-10 | 福建省长乐市华拓五金有限公司 | The fixed MIG welding gun of a kind of blast-furnace tuyere welding water-cooled |
| CN105689849A (en) * | 2016-03-28 | 2016-06-22 | 武汉纳瑞格智能设备有限公司 | Gas distributing device for rear-mounted narrow gas/ultra-narrow gap gas shield welding gun |
| CN106392276A (en) * | 2016-11-22 | 2017-02-15 | 江苏阿斯美特精工科技有限公司 | CoTIG welding gun capable of compressing electric arc and welding method |
| CN109262117A (en) * | 2018-10-17 | 2019-01-25 | 广东福维德焊接股份有限公司 | A kind of efficiently cooling lockhole effect TIG deep penetration welding welding gun |
| CN111390358A (en) * | 2020-04-26 | 2020-07-10 | 江苏科技大学 | Rocking/rotating arc consumable electrode gas shielded welding torch and method of using same |
| CN111496358A (en) * | 2020-05-30 | 2020-08-07 | 山东平云智能装备有限公司 | Narrow-gap tungsten electrode argon arc welding gun |
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