CN212398441U - Welding gas protection device - Google Patents
Welding gas protection device Download PDFInfo
- Publication number
- CN212398441U CN212398441U CN202020563976.0U CN202020563976U CN212398441U CN 212398441 U CN212398441 U CN 212398441U CN 202020563976 U CN202020563976 U CN 202020563976U CN 212398441 U CN212398441 U CN 212398441U
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- gas
- welding
- protective gas
- shield
- hood
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- HSFWRNGVRCDJHI-UHFFFAOYSA-N Acetylene Chemical compound C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 230000001681 protective effect Effects 0.000 claims abstract description 55
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 230000000903 blocking effect Effects 0.000 claims abstract description 12
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 7
- 239000003063 flame retardant Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 238000003466 welding Methods 0.000 abstract description 38
- 239000007789 gas Substances 0.000 description 93
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- Arc Welding In General (AREA)
Abstract
The application provides a welding gas protection device, includes: the protective gas hood is used for jointing the plates to be welded and is internally provided with a cavity for containing protective gas; the end part of the protective gas hood is provided with an opening, and the opening is provided with a lap joint groove so as to be lapped with another protective gas hood; the blocking piece is detachably blocked at the opening at the end part of the overlapping groove; the fixing device is arranged on the protective gas hood so as to enable the protective gas hood and the plate to be welded to be tightly attached; the sealing gasket is positioned on the surfaces of the protective gas hood and the plugging piece so as to be in sealing fit with the plate to be welded; and the inflation joint is arranged on the protective gas cover and used for inflating the protective gas cover. Through this welding gas protection device, can realize welding the panel of arbitrary length.
Description
Technical Field
The application relates to the technical field of welding back gas protection, in particular to a welding gas protection device.
Background
K-TIG welding (Keyhole-TIG), an automated full penetration welding process, requires the use of back gas shielding to ensure the quality of single-side welding and double-side forming. In general, for welding of closed structures such as pipes and the like, the gas protection of the back can be completed by adopting a gas filling mode in the pipes; however, for open structures such as the welding seam of a jointed board, the back gas shielding is difficult to realize, which limits the popularization and application of the K-TIG welding technology in the welding of the plate structures.
SUMMERY OF THE UTILITY MODEL
The application provides a welding gas protection device for realize waiting to weld the back gas protection of panel welding seam to open structure.
The application provides a welding gas protection device, includes: the protective gas hood is used for jointing the plates to be welded and is internally provided with a cavity for containing protective gas; the end part of the protective gas hood is provided with an opening, and the opening is provided with a lap joint groove so as to be lapped with another protective gas hood; the blocking piece is detachably blocked at the opening at the end part of the overlapping groove; the fixing device is arranged on the protective gas hood so as to enable the protective gas hood to be tightly attached to the plate to be welded; the sealing gasket is positioned on the surfaces of the protective gas hood and the plugging piece so as to be in sealing fit with the plate to be welded; and the inflation joint is arranged on the protective gas cover and used for inflating the protective gas cover.
Preferably, the protective gas hood is long and has openings at two ends; wherein the opening at one end is positioned on the inner surface of the protective gas cover and is provided with the overlapping groove, and the opening at the other end is positioned on the outer surface of the protective gas cover and is provided with the overlapping groove.
Preferably, the length of the lap joint grooves at the two ends of the protective gas hood is the same, and the depth of the lap joint grooves is the same.
Preferably, the shielding gas hood comprises a hood body for containing shielding gas and an attaching plate for attaching the plate to be welded; the end part and one side surface of the cover body are provided with openings, and the attaching plate is arranged corresponding to the openings on the side surface; the lap joint groove is arranged on the surfaces of the cover body and the attaching plate; the cross section shape of the plugging piece is matched with that of the cover body; the fixing device and the sealing gasket are arranged on the attaching plate; the inflation joint is arranged on the cover body.
Preferably, the cross-sectional shapes of the cover body and the blocking piece are trapezoidal, square, semicircular or triangular.
Preferably, the number of the fixing devices is multiple, and the fixing devices are arranged at intervals along the length direction of the protective gas hood.
Preferably, the fixing means is a strong magnet or a strong vacuum chuck.
Preferably, in the welding gas protecting device of any one of the above embodiments, the protecting gas hood and the blocking piece are both made of a high molecular flame retardant material.
Preferably, in the welding gas protecting device according to any of the above embodiments, the gasket is made of a flame retardant rubber.
Preferably, in the welding gas protection device of any one of the above, the gas charging connector is a one-way gas charging connector.
According to the technical scheme, the method has the following advantages that:
1. the welding device can realize the welding of the plate and enable the back of the plate to be welded to form local protective atmosphere.
2. The utility model provides a welding gas protection device is flexible design, is equipped with the overlap joint groove on the protection gas cover, can realize the overlap joint of protection gas cover, can form the local gas protection space of arbitrary length, is applicable to the panel of arbitrary length and welds.
Drawings
FIG. 1 is a schematic structural diagram of a welding gas protection apparatus according to an embodiment of the present disclosure;
fig. 2 is a schematic view illustrating a welding gas protection apparatus according to an embodiment of the present disclosure.
The reference numerals are explained below: 1. welding a gas protection device; 11. a protective gas hood; 111. a cover body; 112. attaching a plate; 113. a lap joint groove; 12. a blocking member; 13. a fixing device; 14. a gasket; 15. an inflation joint; 2. a plate to be welded; 21. welding a plate seam to be welded; 3. and (4) welding the welding gun.
Detailed Description
Exemplary embodiments that embody features and advantages of the present application will be described in detail in the following description. It is understood that the present application is capable of many variations in different embodiments without departing from the scope of the invention, and that the description and drawings herein are to be taken as illustrative and not restrictive in character.
The application provides a welding gas protection device 1 for welding a plate 2 to be welded.
Referring to fig. 1, the welding gas protection device 1 includes a protection gas hood 11, a blocking piece 12, a fixing device 13, a sealing gasket 14, and a gas charging connector 15. The welding gas protection device 1 realizes welding of jointed boards with any length and enables the back of the welding seam of the jointed boards to form protective atmosphere.
The protective gas hood 11 is used for jointing the plates 2 to be welded and is internally provided with a cavity for containing protective gas; the end of the shielding gas hood 11 has an opening, and the opening is provided with a lap joint groove 113 so as to be capable of lap joint with another shielding gas hood 11.
Specifically, the protective gas hood 11 includes a hood body 111 and an attachment plate 112. The housing 111 is elongated and has a cavity therein for receiving a shielding gas. The cover 111 has openings at both ends, defined as end openings. One side of the cover 111 is provided with an opening, which is defined as a side opening. Specifically, in this embodiment, the cover 111 includes two side plates disposed in parallel at an interval and a top plate connected between tops of the two side plates, and the two side plates and the top plate enclose a cavity.
The attachment plate 112 is provided at the side opening of the cover 111. The attaching plate 112 is used for attaching the plate 2 to be welded. Specifically, in this embodiment, the number of the attachment plates 112 is two, and the two attachment plates are respectively disposed on two sides of the cover 111. Each attaching plate 112 is parallel to the top plate and connected to one end of the side plate opposite to the top plate, and the attaching plates 112 and the top plate are respectively arranged at the upper and lower sides of the side plate.
In this embodiment, the cover 111 is integrally formed. The cover 111 and the attachment plates 112 may be integrally formed, wherein two attachment plates 112 are disposed on two sides of the cover 111.
The overlapping groove 113 is provided on the surfaces of the cover 111 and the attachment plate 112, and is located at the end opening of the cover 111, so that the shielding gas cover 11 overlaps with another shielding gas cover 11. Specifically, in the present embodiment, the shielding gas hood 11 includes two overlapping grooves 113, wherein one overlapping groove 113 is located on the inner surface of the hood 111, and the other overlapping groove 113 is located on the outer surface of the hood 111.
The shielding gas hood 11 can overlap at least two shielding gas hoods 11 through the overlapping grooves 113 at both ends of the hood body 111, thereby extending the shielding gas hoods 11.
Further, the overlapping grooves 113 at both ends of the shielding gas cover 11 have the same length, and the overlapping grooves 113 have the same depth. This allows the same size shielding gas cover 11 to be well attached after overlapping.
In addition, in this embodiment, the shielding gas covers 11 are long, which facilitates the overlapping of the plurality of shielding gas covers 11.
It should be noted that the cross-sectional shapes of the cover 111 and the blocking piece 12 may be any one of trapezoidal, square, semicircular, and triangular, which facilitates the molding of the protective gas cover 11. Variations to the cross-sectional shape of the cap 111 and the closure 12 are within the scope of the present application.
The length of the protective gas hood 11 can be changed within the range of 200-600 mm, and the thickness of the hood body 111 and the thickness of the attaching plate 112 can be changed within the range of 3-15 mm. The shield gas cover 11 is a main body of the gas back shield apparatus, and can form a partial shield atmosphere space.
The closure piece 12 is detachably plugged at the end opening of the lap joint groove 113, and the closure piece 12 is detachably plugged at the end opening of the lap joint groove 113, so that the protective gas cover 11 can be conveniently lapped from both ends of the cover body 111.
Further, the thickness of the plugging piece 12 can be changed within the range of 10-30 mm. And the cross-sectional shape of the blocking piece 12 is matched with that of the cover body 111, so that the protective gas cover 11 can be more conveniently overlapped from two ends of the protective gas cover 11.
In this embodiment, the shielding gas hood 11 and the plugging member 12 are both made of a high-molecular flame retardant material, so that high-temperature gas generated during welding operation is isolated, and the safety during welding operation is improved. Wherein, the high molecular flame retardant material can be selected from metal alloy materials such as titanium alloy, aluminum alloy, stainless steel and the like. The welding line can be prevented from being oxidized when the high-temperature welding line can contact with air, the mechanical property of the welding line is prevented from being deteriorated, and meanwhile, the safety of welding operators is guaranteed when the welding operators are welded.
The fixing device 13 is disposed on the shielding gas hood 11, and specifically, the fixing device 13 is disposed on the attaching plate 112, so that the shielding gas hood 11 and the plate 2 to be welded are tightly attached.
In this embodiment, the number of the fixing devices 13 is plural, the plural fixing devices 13 are disposed on the attaching plate 112 at intervals along the length direction of the shielding gas hood 11, and the number of the fixing devices 13 on the two attaching plates 112 is the same and is symmetrically disposed. A better fixing capacity between the shielding gas hood 11 and the sheet 2 to be welded can be achieved.
Further, the fixing device 13 is disposed on the outer surface of the attachment plate 112 to realize the fixing capability between the shielding gas hood 11 and the plate 2 to be welded. Thereby avoiding the problems of poor air tightness of the protective gas hood 11, unsafe welding and the like in the welding process of the plate 2 to be welded.
If the board 2 to be welded is made of a magnetic material, the fixing device 13 may be a strong magnet, and the board 2 to be welded and the attachment plate 112 may be tightly attached to each other by using the strong magnet. If the board 2 to be welded is made of a non-magnetic material, the fixing device 13 may be a powerful vacuum chuck attached to the attachment plate 112, so as to enable the attachment plate 112 to be tightly attached to the board 2 to be welded.
The sealing gasket 14 is located on the surfaces of the protective gas hood 11 and the blocking piece 12, and specifically, the sealing gasket 14 is arranged on the attaching plate 112 to hermetically attach the attaching plate 112 to the plate 2 to be welded. Wherein, the sealing gasket 14 is disposed on the inner surface of the attachment plate 112 to realize the close attachment between the attachment plate 112 and the plate 2 to be welded.
In this embodiment, the thickness of the gasket 14 may vary within a range of 3 to 10 mm. The sealing gasket 14 is made of flame-retardant rubber, so that high-temperature gas generated during welding operation is isolated, and the safety during welding operation is improved.
The inflation connector 15 is provided on the cover body 111 for inflating the protection gas cover 11. In this embodiment, the air charging connector 15 is provided on the ceiling.
Specifically, the inner diameter of the inflation connector 15 can be changed within the range of 6-18 mm, and the inflation connector 15 is connected with the gas cylinder through a gas pipe and used for inflating the protective gas hood 11 to form protective atmosphere. The gas used for welding can be a mixed gas of argon and carbon dioxide, the mixing ratio of the argon and the carbon dioxide can be correspondingly adjusted according to different welding materials, and 8:2 is the welding gas ratio of the most common carbon steel plate.
Further, the gas-filled joint 15 is a one-way gas-filled joint, i.e. gas can enter the cover 111 from the gas-filled joint 15, but cannot flow out from the cover 111 from inside to outside, so as to prevent the gas from overflowing through the gas-filled joint 15, thereby maintaining the air tightness of the protective gas cover 11.
Referring to fig. 2, the operation of the welding gas protection device 1 is as follows:
first, the specification and number of the shielding gas hoods 11 are selected as appropriate according to the length of the to-be-welded plate joint 21 of the to-be-welded plate 2 and the material of the to-be-welded plate 2. The blocking piece 12 is detachably arranged at the opening of the two ends of the protective gas hood 11, and the sealing gasket 14 is arranged on the surfaces of the protective gas hood 11 and the blocking piece 12 to form a closed cavity. Then, the plate 2 to be welded is fixed to the shielding gas cover 11 by a plurality of fixing devices 13, and the inflation joint 15 inflates the inside of the shielding gas cover 11 from the gas cylinder through the gas pipe to form a local protective atmosphere in the shielding gas cover 11. The plate 2 to be welded is tightly attached to the shielding gas hood 11 through the sealing gasket 14, and the central line of the shielding gas hood 11 is aligned with the welding line of the plate 2 to be welded. Finally, the welding of the plates 2 to be welded is carried out by means of a welding gun 3 at the weld of the plates 2 to be welded. After welding, the gas cylinder is closed, and the protective gas hood 11 is removed.
The application has at least the following advantages:
1. the welding device can realize the welding of the plate and enable the back of the plate to be welded to form local protective atmosphere.
2. The utility model provides a welding gas protection device is flexible design, is equipped with overlap joint groove 113 on protection gas hood 11, can realize protection gas hood 11's overlap joint, can form arbitrary length local gas protection space, and the panel that is applicable to arbitrary length welds.
While the present application has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present application may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
Claims (10)
1. A welding gas shield apparatus, comprising:
the protective gas hood is used for jointing the plates to be welded and is internally provided with a cavity for containing protective gas; the end part of the protective gas hood is provided with an opening, and the opening is provided with a lap joint groove so as to be lapped with another protective gas hood;
the blocking piece is detachably blocked at the opening at the end part of the overlapping groove;
the fixing device is arranged on the protective gas hood so as to enable the protective gas hood to be tightly attached to the plate to be welded;
the sealing gasket is positioned on the surfaces of the protective gas hood and the plugging piece so as to be in sealing fit with the plate to be welded;
and the inflation joint is arranged on the protective gas cover and used for inflating the protective gas cover.
2. The welding gas protection device of claim 1, wherein the shielding gas enclosure is elongated and has openings at both ends; wherein the opening at one end is positioned on the inner surface of the protective gas cover and is provided with the overlapping groove, and the opening at the other end is positioned on the outer surface of the protective gas cover and is provided with the overlapping groove.
3. The welding gas shield of claim 2, wherein the overlapping grooves at both ends of the shield gas shield are the same length and the overlapping grooves are the same depth.
4. The welding gas shield of claim 1, wherein the shield gas enclosure comprises a housing body for containing a shield gas and an attachment plate for attaching a sheet material to be welded; the end part and one side surface of the cover body are provided with openings, and the attaching plate is arranged corresponding to the openings on the side surface; the lap joint groove is arranged on the surfaces of the cover body and the attaching plate;
the cross section shape of the plugging piece is matched with that of the cover body; the fixing device and the sealing gasket are arranged on the attaching plate; the inflation joint is arranged on the cover body.
5. The welding gas shield of claim 4, wherein the cross-sectional shapes of the enclosure and the closure are trapezoidal, square, semi-circular, or triangular.
6. The welding gas shield of claim 1, wherein the plurality of fixtures is a plurality of fixtures spaced apart along a length of the shield gas enclosure.
7. The welding gas protection device of claim 6, wherein the securing device is a powerful magnet or a powerful vacuum chuck.
8. The welding gas shield according to any of claims 1-7, wherein the shield gas shield and the closure are made of a polymeric flame retardant material.
9. The welding gas protection device according to any one of claims 1-7, wherein the sealing gasket is a flame retardant rubber.
10. The welding gas protection device of any of claims 1-7, wherein the gas-filled joint is a unidirectional gas-filled joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020563976.0U CN212398441U (en) | 2020-04-15 | 2020-04-15 | Welding gas protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020563976.0U CN212398441U (en) | 2020-04-15 | 2020-04-15 | Welding gas protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212398441U true CN212398441U (en) | 2021-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020563976.0U Active CN212398441U (en) | 2020-04-15 | 2020-04-15 | Welding gas protection device |
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| Country | Link |
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| CN (1) | CN212398441U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113275715A (en) * | 2021-05-08 | 2021-08-20 | 渤海造船厂集团有限公司 | Visual, measurable and adjustable back weld forming inflation protection device and method |
-
2020
- 2020-04-15 CN CN202020563976.0U patent/CN212398441U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113275715A (en) * | 2021-05-08 | 2021-08-20 | 渤海造船厂集团有限公司 | Visual, measurable and adjustable back weld forming inflation protection device and method |
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