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KR101763210B1 - Shielding Gas Guiding Apparatus for Welding - Google Patents

Shielding Gas Guiding Apparatus for Welding Download PDF

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Publication number
KR101763210B1
KR101763210B1 KR1020160008092A KR20160008092A KR101763210B1 KR 101763210 B1 KR101763210 B1 KR 101763210B1 KR 1020160008092 A KR1020160008092 A KR 1020160008092A KR 20160008092 A KR20160008092 A KR 20160008092A KR 101763210 B1 KR101763210 B1 KR 101763210B1
Authority
KR
South Korea
Prior art keywords
welding
housing
shielding gas
guiding apparatus
welding operation
Prior art date
Application number
KR1020160008092A
Other languages
Korean (ko)
Inventor
김영태
김명철
황창성
Original Assignee
두산중공업 주식회사
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 두산중공업 주식회사 filed Critical 두산중공업 주식회사
Priority to KR1020160008092A priority Critical patent/KR101763210B1/en
Application granted granted Critical
Publication of KR101763210B1 publication Critical patent/KR101763210B1/en

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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
    • B23K9/32—Accessories
    • B23K9/325—Devices for supplying or evacuating 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
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • 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
    • B23K9/24—Features related to electrodes
    • B23K9/28—Supporting devices for electrodes
    • B23K9/29—Supporting devices adapted for making use of shielding means

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Arc Welding In General (AREA)

Abstract

A shielding gas induction device for welding is disclosed. The shielding gas guiding apparatus for welding according to an embodiment of the present invention is a welding shielding gas guiding apparatus which is installed adjacent to a welding work site to guide a shielding gas to a welding site, A housing part having a plurality of through holes formed on an outer surface facing the work part; And a gas supply unit mounted inside the housing unit and supplying a shielding gas supplied from the outside to the inside of the housing unit.
According to the shielding gas guiding apparatus for welding of the present invention, it is possible to prevent welding defects due to shortage of shielding gas due to narrow welding operation width, to improve the efficiency of welding work and to ensure the best welding quality, A gas induction device can be provided.

Description

Technical Field [0001] The present invention relates to a shielding gas guiding apparatus for welding,

The present invention relates to a shielding gas guiding apparatus for welding, and more particularly, to a shielding gas guiding apparatus for welding which is capable of preventing weld defect caused by shortage of shielding gas due to narrow welding operation width, To a shielding gas induction device for welding.

FIG. 1 shows a view of a welding work zone formed in a narrow width, and FIG. 2 is a photograph showing a shielding gas induction apparatus for welding according to the prior art.

As shown in FIG. 1, shielding gas must be sufficiently supplied to the welding work area 11 having a narrow welding operation width to prevent welding failure.

Therefore, in the prior art, as shown in FIG. 2, shielding gas is introduced by using the box-shaped shielding gas guiding device 20 to prevent welding defects.

However, the shielding gas guiding apparatus 20 according to the related art has a shielding gas guiding apparatus 20 having various sizes and shapes, as shown in FIG. 1, in order to appropriately cope with the welding work site 11 formed with various widths and depths. Should be used. In addition, the shielding gas guiding apparatus 20 according to the related art can not effectively provide the shielding gas to the welding work site 11, and thus an excessive shielding gas is required.

Accordingly, there is a need for a technique capable of solving the problems of the prior art.

Korean Patent Publication No. 10-2014-0005490 (published on Jan. 15, 2014)

An object of the present invention is to provide a shielding gas guiding apparatus for welding which can prevent welding defects caused by lack of shielding gas due to a narrow welding operation width and improve the efficiency of welding work to ensure the best welding quality.

According to an aspect of the present invention, there is provided a shielding gas guiding apparatus for welding a shielding gas guiding apparatus mounted adjacent to a welding work site to guide a shielding gas to a welding site, And a plurality of through holes formed in an outer surface of the housing portion facing the welding operation portion; And a gas supply unit mounted inside the housing unit and supplying a shielding gas supplied from the outside to the inside of the housing unit.

According to an embodiment of the present invention, a fixing member capable of supporting and fixing the housing portion by being coupled with another member may be mounted on the upper portion of the housing portion.

In an exemplary embodiment of the present invention, a nozzle inlet opening corresponding to the welding operation nozzle may be formed on the upper portion of the housing portion so that the welding operation nozzle may enter into the housing portion.

According to an embodiment of the present invention, the housing part may include: an upper housing having a box structure that covers an upper portion of the welding operation part and faces the welding operation part; And a lower housing mounted on a lower portion of the upper housing and having a gas supply portion mounted therein and formed in a closed box structure and having a plurality of through holes formed on a surface thereof facing the welding operation portion, have.

In some cases, the lower housing may further include a length changing structure capable of changing a length of the lower housing in a vertical direction.

In this case, the length changing structure may include an extended housing formed in a closed box structure corresponding to a lower end of the lower housing, and sliding along the outer surface of the lower housing to change its position.

In addition, a plurality of through-holes may be formed on an outer surface of the extension housing facing the welding work area.

According to an embodiment of the present invention, the gas supply unit may include: an inlet pipe for supplying a shielding gas to the vertical pipe installed in the housing unit by receiving a shielding gas from the outside; A vertical pipe communicating with the inlet pipe, vertically installed inside the housing part, and having a plurality of through holes formed on an outer surface thereof; And a horizontal pipe communicating with the vertical pipe, horizontally installed inside the housing part, and having a plurality of through-holes formed on an outer surface thereof.

At this time, the connection structure between the vertical pipe and the horizontal pipe may be a plane-like mesh-like structure having an area corresponding to an area of the welding work site.

As described above, according to the welding shielding gas guiding apparatus of the present invention, since the housing portion and the gas supplying portion having a specific structure are provided, weld defects occurring due to the shortage of shielding gas due to the narrow welding operation width can be prevented , It is possible to provide a shielding gas induction device for welding which can improve the efficiency of welding work and ensure the best welding quality.

According to the welding shielding gas guiding apparatus of the present invention, since the gas supply unit is formed in a planar mesh-like shape having an area corresponding to the area of the welding work site, shielding gas can be supplied more stably And as a result, welding failure can be prevented in advance.

According to the welding shielding gas guiding apparatus of the present invention, since the housing portion including the length changing structure capable of changing the length in the vertical direction can be provided, the length can be suitably changed according to the depth of the welding work site , It is not necessary to separately prepare a plurality of welding shielding gas induction devices according to the depth of the welding operation site, and as a result, the efficiency of the welding operation can be maximized.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing a welding work zone formed in a narrow width.
2 is a photograph showing a conventional shielding gas induction apparatus for welding.
3 is a photograph showing a shielding gas induction device for welding according to an embodiment of the present invention.
Fig. 4 is a front view showing the shielding gas induction device for welding shown in Fig. 3; Fig.
5 is a side view showing the welding shielding gas guiding apparatus shown in Fig.
6 is a plan view showing the shielding gas induction device for welding shown in FIG.
7 is a cross-sectional view taken along the line A-A 'shown in FIG.
8 is a side view showing another welding shielding gas guiding apparatus according to another embodiment of the present invention.
FIG. 9 is a photograph showing a shielding gas flow apparatus for welding according to an embodiment of the present invention mounted on an actual welding work site.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. Prior to the description, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and should be construed in accordance with the technical concept of the present invention.

Throughout this specification, when a member is "on " another member, this includes not only when the member is in contact with another member, but also when there is another member between the two members. Throughout this specification, when an element is referred to as "including" an element, it is understood that it may include other elements as well, without departing from the other elements unless specifically stated otherwise.

FIG. 3 is a photograph showing a welding shielding gas guiding apparatus according to an embodiment of the present invention, and FIG. 4 is a front view showing a welding shielding gas guiding apparatus shown in FIG. A side view showing the welding shielding gas guiding apparatus shown in Fig. 4 is shown. FIG. 6 is a plan view showing the welding shielding gas guiding apparatus shown in FIG. 4, and FIG. 7 is a sectional view taken along line A-A 'shown in FIG.

Referring to these drawings, the welding shielding gas guiding apparatus 100 according to the present embodiment may be configured to include the housing portion 110 and the gas supplying portion 120.

Specifically, the housing part 110 may have a structure that surrounds the welding operation part 11, and a plurality of through holes 111 may be formed on the outer surface facing the welding operation part 11.

In some cases, the upper portion of the housing part 110 may be equipped with a fixing member 112 which is coupled to another member and is capable of supporting and fixing the housing part 110. In this case, the shielding gas guiding apparatus 100 for welding can be stably fixed during the welding operation by binding another member and the housing portion 110, and the efficiency of the welding work can be improved.

As shown in FIGS. 4 and 5, a nozzle inlet opening 113 (corresponding to the welding operation nozzle) corresponding to the welding operation nozzle is provided at an upper portion of the housing portion 110 so that the nozzle for welding operation can enter into the housing portion 110 May be formed.

Although FIGS. 4 and 5 illustrate the nozzle draw-in through-hole 113 having a rectangular shape in the plan view, it goes without saying that the nozzle draw-through hole 113 can be appropriately changed in shape and size corresponding to the nozzle for welding work.

The above-mentioned housing part 110 may be composed of an upper housing 114 and a lower housing 115, as shown in FIG.

At this time, the upper housing 114 may be formed in a box structure that covers the upper portion of the welding operation site 11 and has one side open to the welding operation site 11. The lower housing 115 is mounted on the lower portion of the upper housing 114 and has a gas supply portion 120 mounted therein. The lower housing 115 is formed in a closed box structure. A through hole 111 may be formed.

In some cases, the lower housing 115 may further include a length changing structure that can change the length of the lower housing 115 in the vertical direction, as shown in FIG. In this case, the length changing structure may include an extension housing 116 formed in a closed box structure corresponding to a lower end of the lower housing 115, and sliding along the outer surface of the lower housing 115 to change its position . At this time, it is preferable that a plurality of through-holes are formed on the outer surface of the extension housing 116 facing the welding work area.

In this case, the welding shielding gas guiding apparatus 100 according to the present embodiment has the housing portion 110 including the length changing structure capable of changing the length in the vertical direction, It is not necessary to separately prepare a plurality of shielding gas induction devices for welding according to the depth of the welding operation site, and as a result, the efficiency of the welding operation can be maximized.

Meanwhile, the gas supply unit 120 may be installed inside the housing unit 110, and may supply the shielding gas supplied from the outside to the inside of the housing unit 110.

Specifically, the gas supply unit 120 may be configured to include an inlet pipe 121, a vertical pipe 122, and a horizontal pipe 123, as shown in FIGS.

The inlet pipe 121 can supply shielding gas to the vertical pipe 122 installed in the housing part 110 by supplying the shielding gas from the outside.

The vertical pipe 122 communicates with the inlet pipe 121 and is vertically mounted within the housing portion 110 and may have a plurality of through holes 124 formed on the outer surface thereof.

The horizontal pipe 123 communicates with the vertical pipe 122 and is mounted horizontally inside the housing part 110 and a plurality of through holes 124 may be formed on the outer surface.

Preferably, one horizontal pipe 123 is disposed in the upper housing 114 and a plurality of horizontal pipes 123 are disposed in the lower housing. The above-mentioned number is only one example, and is not limited to the configuration as long as it can supply uniform shielding gas to the welding object, and can be appropriately changed by a designer or an operator.

7, the connection structure between the vertical pipe 122 and the horizontal pipe 123 may be a planar mesh-like shape having an area corresponding to an area of the welding work site. In this case, the shielding gas can be more stably supplied to the welding work site, and as a result, welding failure can be prevented in advance.

FIG. 9 is a photograph showing a state where a shielding gas flow apparatus for welding according to an embodiment of the present invention is mounted on an actual welding work site.

9, the welding shielding gas guiding apparatus 100 according to the present embodiment includes the housing part 110 and the gas supplying part 120 having a specific structure, It is possible to provide a shielding gas guiding apparatus for welding which can prevent welding defects caused by lack of shielding gas to the region 11 and improve the efficiency of welding work to ensure the best welding quality.

In the foregoing detailed description of the present invention, only specific embodiments thereof have been described. It is to be understood, however, that the invention is not to be limited to the specific forms thereof, which are to be considered as being limited to the specific embodiments, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims. .

That is, the present invention is not limited to the above-described specific embodiment and description, and various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims. And such variations are within the scope of protection of the present invention.

10: object to be welded
11: welding work area
20: shielding gas induction device for welding according to the prior art
21: auxiliary closure member
100: shielding gas induction device for welding
110: housing part
111: Through hole
112: Fixing member
113: nozzle inlet opening
114: upper housing
115: Lower housing
116: extension housing
120: gas supply unit
121: inlet piping
122: Vertical piping
123: Horizontal piping
124: Through hole

Claims (9)

A shielding gas induction device for welding mounted adjacent to a welding work site to guide a shielding gas to a welding site,
A housing part formed to surround the welding operation part and having a plurality of through holes formed on the outer surface facing the welding operation part; And
A gas supply unit mounted in the housing unit and supplying a shielding gas supplied from the outside to the inside of the housing unit;
Lt; / RTI >
The housing portion includes:
An upper housing having a box structure that covers an upper portion of the welding operation portion and faces the welding operation portion; And
A lower housing mounted on a lower portion of the upper housing, having a gas supply portion mounted therein, a lower housing formed in a closed box structure and having a plurality of through holes formed in a surface thereof facing the welding operation portion;
Wherein the shielding gas guiding device comprises:
The method according to claim 1,
Wherein a fixing member capable of supporting and fixing the housing portion is mounted on the upper portion of the housing portion.
The method according to claim 1,
Wherein a nozzle draw-in opening is formed in the upper portion of the housing to have a size corresponding to that of the nozzle for welding so that the nozzle for welding can enter into the inside of the housing.
delete The method according to claim 1,
Wherein the lower housing further comprises a length changing structure capable of changing the length of the lower housing in a vertical direction.
6. The method of claim 5,
Wherein the length changing structure includes an extended housing formed in a closed box structure corresponding to a lower end of the lower housing and sliding along the outer surface of the lower housing to change its position.
The method according to claim 6,
Wherein a plurality of through-holes are formed in an outer surface of the elongated housing facing the welding work area.
The method according to claim 1,
The gas supply unit includes:
An inlet pipe through which a shielding gas is supplied from the outside to deliver a shielding gas to a vertical pipe installed in the housing portion;
A vertical pipe communicating with the inlet pipe, vertically installed inside the housing part, and having a plurality of through holes formed on an outer surface thereof; And
A horizontal pipe communicating with the vertical pipe, horizontally installed inside the housing part, and having a plurality of through holes formed on an outer surface thereof;
Wherein the shielding gas guiding device comprises:
9. The method of claim 8,
Wherein the connection structure of the vertical pipe and the horizontal pipe has a planar mesh-like shape having an area corresponding to an area of the welding work site.
KR1020160008092A 2016-01-22 2016-01-22 Shielding Gas Guiding Apparatus for Welding KR101763210B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020160008092A KR101763210B1 (en) 2016-01-22 2016-01-22 Shielding Gas Guiding Apparatus for Welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160008092A KR101763210B1 (en) 2016-01-22 2016-01-22 Shielding Gas Guiding Apparatus for Welding

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KR101763210B1 true KR101763210B1 (en) 2017-07-31

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2503440Y2 (en) * 1989-07-21 1996-07-03 バブコツク日立株式会社 Narrow groove arc welder
JP5412813B2 (en) * 2008-12-03 2014-02-12 株式会社Ｉｈｉ Laser welding shield method, shield gas supply nozzle, and laser welding shield device
KR200477504Y1 (en) * 2010-10-07 2015-06-16 대우조선해양 주식회사 Trailing shield jig

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2503440Y2 (en) * 1989-07-21 1996-07-03 バブコツク日立株式会社 Narrow groove arc welder
JP5412813B2 (en) * 2008-12-03 2014-02-12 株式会社Ｉｈｉ Laser welding shield method, shield gas supply nozzle, and laser welding shield device
KR200477504Y1 (en) * 2010-10-07 2015-06-16 대우조선해양 주식회사 Trailing shield jig

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