KR20090103584A - Nozzle Assembly for Gas Metal Arc Welding - Google Patents
Nozzle Assembly for Gas Metal Arc WeldingInfo
- Publication number
- KR20090103584A KR20090103584A KR1020080029280A KR20080029280A KR20090103584A KR 20090103584 A KR20090103584 A KR 20090103584A KR 1020080029280 A KR1020080029280 A KR 1020080029280A KR 20080029280 A KR20080029280 A KR 20080029280A KR 20090103584 A KR20090103584 A KR 20090103584A
- Authority
- KR
- South Korea
- Prior art keywords
- protective gas
- welding
- insulator
- arc welding
- metal arc
- Prior art date
Links
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
- 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
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
- B23K9/122—Devices for guiding electrodes, e.g. guide tubes
-
- 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
-
- 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
- B23K9/325—Devices for supplying or evacuating shielding gas
Abstract
Description
본 발명은 보호가스 금속아크용접용 노즐 조립체에 관한 것이다.The present invention relates to a nozzle assembly for protective gas arc welding.
보호가스(shield gas)를 용접분위기로 하는 보호가스 금속아크용접(GMAW : Gas Metal Arc Welding)은 보호가스의 종류에 따라 불활성가스를 사용하는 MIG(Metal Inert Gas)용접과, 이산화탄소 또는 그 혼합물을 사용하는 이산화탄소 용접이 주로 사용되는데, 용착효율이 높고 용접속도가 빠르며 우수한 품질의 용접부를 얻을 수 있을 뿐만 아니라 용접봉의 교체가 불필요한 등의 여러가지 이점이 있으므로, 특히 선박, 자동차, 철물구조물 등의 후판 용접에 널리 사용되고 있다.Gas Metal Arc Welding (GMAW), which uses a shielding gas as a welding atmosphere, uses MIG (Metal Inert Gas) welding using inert gas, carbon dioxide, or mixtures thereof according to the type of protective gas. Carbon dioxide welding is mainly used, but it has high welding efficiency, fast welding speed, excellent quality welds, and there are various advantages such as no need to replace the welding rod. It is widely used in.
종래 보호가스 금속아크용접용 노즐조립체는, 인슐레이터의 단부에 노즐몸체가 결합되어 상기 인슐레이터의 구멍을 통하여 나온 보호가스가 노즐몸체의 외벽을 타고 용접부위로 조사되는 구조로 되어 있다. Conventionally, a protective gas nozzle assembly for metal arc welding has a structure in which a nozzle body is coupled to an end portion of an insulator, and a protective gas emitted through a hole of the insulator is irradiated to a welding part through an outer wall of the nozzle body.
그런데, 종래 보호가스 금속아크용접용 노즐조립체에 의하면, 실제 용접시 용접부위에 보호가스를 균일하게 공급하기가 어렵고, 이러한 불균일한 가스공급으로 인해 스패터(spatter)가 많이 발생하고 용접부위를 대기와 완벽하게 차폐하기가 힘들어 용접불량이 생긴다는 문제점이 있었다.However, according to the conventional protective gas metal arc welding nozzle assembly, it is difficult to uniformly supply the protective gas to the welding part during the actual welding, and due to this non-uniform gas supply, a lot of spatters are generated and the welding part is separated from the air. It was difficult to shield completely, there was a problem that a welding defect occurs.
따라서, 본 발명은 상기 문제점을 해결하기 위해 이루어진 것으로서, 본 발명의 목적은 보호가스를 용접부위에 균일하게 공급하여 용접불량을 줄이는 보호가스 금속아크용접용 노즐 조립체를 제공하는 데 있다.Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is to provide a protective gas metal arc welding nozzle assembly to reduce the welding failure by uniformly supplying the protective gas to the welding portion.
본 발명에 의한 보호가스 금속아크용접용 노즐조립체는, 보호가스가 토출되는 구멍이 형성된 인슐레이터가 노즐몸체의 내부에 구비되고, 상기 노즐몸체의 내주면에는 상기 구멍에서 나온 보호가스가 회전하면서 용접부위에 공급되도록 나선형 홈이 형성되어 있는 것을 특징으로 한다.In the nozzle assembly for the protective gas metal arc welding according to the present invention, an insulator having a hole for discharging the protective gas is provided inside the nozzle body, and a protective gas from the hole is supplied to the welding part on the inner circumferential surface of the nozzle body. It is characterized in that the spiral groove is formed as possible.
상기 노즐몸체에서 상기 나선형 홈이 형성된 홈부내경은 상기 인슐레이터가 위치하는 조립부내경보다 작게 되어 있고, 상기 나선형 홈은 상기 조립부내경과 상기 인슐레이터의 외경 사이의 간격에 해당하는 만큼 파여 있는 것이 바람직하다.In the nozzle body, the groove inner diameter in which the spiral groove is formed is smaller than the inner diameter of the assembling portion in which the insulator is located, and the spiral groove is excavated as much as the distance between the inner diameter of the assembling portion and the outer diameter of the insulator.
본 발명에 의한 보호가스 금속아크용접용 노즐조립체에 의하면, 보호가스를 용접부위에 균일하게 공급하여 아크의 안정성과 대기와의 차폐효과를 향상시켜 용접불량의 원인을 현저히 개선할 수 있으며, 용접불량으로 인한 재 가공의 시간을 줄임으로써 생산성 향상에 기여할 수 있다는 효과가 있다.According to the nozzle assembly for the protective gas metal arc welding according to the present invention, by supplying the protective gas uniformly to the welding site, the stability of the arc and the shielding effect to the atmosphere can be improved, which can significantly improve the cause of the welding failure. By reducing the time required for reworking, it is possible to contribute to the improvement of productivity.
도1은 본 발명에 의한 보호가스 금속아크용접용 노즐조립체를 나타내는 단면도,1 is a cross-sectional view showing a nozzle assembly for protective gas metal arc welding according to the present invention;
도2는 도1의 노즐몸체를 나타내는 단면도,2 is a cross-sectional view showing the nozzle body of FIG.
도3은 본 발명에 의한 보호가스 금속아크용접용 노즐조립체의 작용상태도이다.3 is an operational state diagram of a protective gas metal arc welding nozzle assembly according to the present invention.
<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>
10 : 노즐몸체 10a : 조립부10: nozzle body 10a: assembly
10b : 홈부 10c : 나선형 홈10b: groove 10c: spiral groove
12 : 용접팁 14 : 인슐레이터12: welding tip 14: insulator
14a : 구멍 14a: hole
이하, 본 발명의 실시예에 대해 첨부도면을 참조하여 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도1은 본 발명에 의한 보호가스 금속아크용접용 노즐조립체를 나타내는 단면도이고, 도2는 도1의 노즐몸체를 나타내는 단면도이다. 도시한 바와 같이, 도시하지 않는 용접토오치의 단부에 결합되는 노즐몸체(10)의 내부에는 용접팁(12)이 설치되고, 상기 용접팁(12)의 선단으로 급송장치(도시안됨)로부터 와이어(W)가 급송되어 아아크를 발생하며 용융됨으로써 용접하게 되어 있는데, 상기 노즐몸체(10)의 내부에는 용접토오치(도시안됨)의 단부와 용접팁(12)간의 절연을 행하며 보호가스가 토출되는 구멍(14a)이 형성된 인슐레이터(14)가 결합되어 있다.1 is a cross-sectional view showing a protective gas metal arc welding nozzle assembly according to the present invention, Figure 2 is a cross-sectional view showing the nozzle body of FIG. As shown, the welding tip 12 is installed inside the nozzle body 10 coupled to the end of the welding torch not shown, and the wire from the feeding device (not shown) to the tip of the welding tip 12. (W) is fed to generate arc and melt to weld, the inside of the nozzle body 10 is insulated between the end of the welding torch (not shown) and the welding tip 12 and the protective gas is discharged The insulator 14 in which the hole 14a is formed is engaged.
상기 노즐몸체(10)는 상기 인슐레이터(14)가 위치하는 조립부(10a)와, 나선홈(10c)이 형성된 홈부(10b)로 나누어져 있는데, 상기 나선홈(10c)은 홈부(10b)의 내주면에 형성되어 있으며 상기 구멍(14a)에서 나온 보호가스가 회전하면서 용접부위에 공급되게 하는 역활을 한다. The nozzle body 10 is divided into an assembly portion 10a in which the insulator 14 is located and a groove portion 10b in which a spiral groove 10c is formed, and the spiral groove 10c is formed in the groove portion 10b. It is formed on the inner circumferential surface and serves to supply the welding gas while the protective gas from the hole 14a rotates.
상기 노즐몸체(10)의 조립부(10a)와 상기 인슐레이터(14)는 나사결합등의 다양한 공지의 결합방법에 의해 용접토오치(도시안됨)의 단부에 결합되므로 자세한 설명은 생략한다.Since the assembly portion 10a and the insulator 14 of the nozzle body 10 are coupled to the ends of the welding torch (not shown) by various known coupling methods such as screw coupling, detailed description thereof will be omitted.
상기 노즐몸체(10)에서 상기 나선형 홈(10c)이 형성된 홈부내경(d2)은 상기 인슐레이터(14)가 위치하는 조립부내경(d1)보다 작게 되어 있다. 그리고, 상기 나선형 홈(10c)은 상기 조립부내경(d1)과 상기 인슐레이터(14)의 외경 사이의 간격(c)에 해당하는 만큼 파여 있는데, 상기 인슐레이터(14)의 구멍(14a)을 통해 토출된 보호가스가 상기 간격(c)에 통해 상기 노즐몸체(10)의 홈부(10b)측으로 이동하여 나선홈(10c)을 타고 회전하면서 용접부위로 유출하게 되어 용접부위를 균일하게 감싸게 되고 용접부위를 대기와 완벽히 차단하게 된다.The groove inner diameter d2 in which the spiral groove 10c is formed in the nozzle body 10 is smaller than the assembly inner diameter d1 in which the insulator 14 is located. The helical groove 10c is excavated as much as the distance c between the assembly portion inner diameter d1 and the outer diameter of the insulator 14, and is discharged through the hole 14a of the insulator 14. The protective gas is moved to the groove portion 10b side of the nozzle body 10 through the gap c and rotates in the spiral groove 10c to flow out to the welding portion, thereby uniformly covering the welding portion and waiting for the welding portion. Will be completely blocked.
도3은 용접시에 상기 인슐레이터(14)의 구멍(14a)에서 나온 보호가스가 노즐몸체(10)의 홈부에서 나선형을 그리면서 유출되는 상태를 나타낸다(화살표로 표시). FIG. 3 shows a state in which the protective gas from the hole 14a of the insulator 14 flows out spirally in the groove of the nozzle body 10 during welding (indicated by arrow).
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020080029280A KR20090103584A (en) | 2008-03-28 | 2008-03-28 | Nozzle Assembly for Gas Metal Arc Welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020080029280A KR20090103584A (en) | 2008-03-28 | 2008-03-28 | Nozzle Assembly for Gas Metal Arc Welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20090103584A true KR20090103584A (en) | 2009-10-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020080029280A KR20090103584A (en) | 2008-03-28 | 2008-03-28 | Nozzle Assembly for Gas Metal Arc Welding |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103611640A (en) * | 2013-09-30 | 2014-03-05 | 宁夏嘉翔自控技术有限公司 | Flow channel spiral nozzle |
| CN114012220A (en) * | 2021-11-19 | 2022-02-08 | 北京电子科技职业学院 | Aluminum alloy consumable electrode arc welding equipment and welding method |
-
2008
- 2008-03-28 KR KR1020080029280A patent/KR20090103584A/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103611640A (en) * | 2013-09-30 | 2014-03-05 | 宁夏嘉翔自控技术有限公司 | Flow channel spiral nozzle |
| CN114012220A (en) * | 2021-11-19 | 2022-02-08 | 北京电子科技职业学院 | Aluminum alloy consumable electrode arc welding equipment and welding method |
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