CN209886882U - Swinging gas shield welding drag cover - Google Patents
Swinging gas shield welding drag cover Download PDFInfo
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- CN209886882U CN209886882U CN201920655719.7U CN201920655719U CN209886882U CN 209886882 U CN209886882 U CN 209886882U CN 201920655719 U CN201920655719 U CN 201920655719U CN 209886882 U CN209886882 U CN 209886882U
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Abstract
The utility model discloses a swinging gas shield welding dragging cover, which comprises a shell, wherein the shell is of a hollow structure, the cross section of the head end of the shell is trapezoidal, the cross section of the tail end of the shell is semicircular, a gas pipeline and a clamp holder are arranged in the shell, holes corresponding to the gas pipeline and the clamp holder are arranged at the top of the shell, and a copper sheet is arranged at the bottom of the shell; the shape of the cross section of the gas pipeline corresponds to the shape of the cross section of the shell, and a plurality of gas outlet holes are formed in the side part of the gas pipeline; the copper sheet is provided with a plurality of rows and a plurality of rows of air holes along the length direction and the width direction. The utility model has the characteristics of protect effectual, excellent in use effect.
Description
Technical Field
The utility model relates to a welding field especially relates to a swing gas shield welds and uses dragging cover.
Background
In the surfacing industry, gas shielded welding surfacing is one of the most important welding processes, and has remarkable effects on surfacing dissimilar materials, controlling dilution rate and physical properties of the materials. When the gas shield welding process is adopted for surfacing, swing welding is mainly adopted, so that good fusion is facilitated, and a welding seam is formed smoothly.
During gas shielded welding swing surfacing, because the two sides are not restricted by the bevel of the groove, the width of the molten pool can greatly exceed the swing width, when the swing width is 12-20 mm, the width of a welding seam can reach 18-32 mm, and at the moment, the protection requirement in the width direction of the molten pool cannot be met only by a nozzle with the diameter of 15-20 mm, and the protection requirement in the length direction of the molten pool cannot be met.
When the welding pool can not obtain good gas protection, the surface of the welding seam can be oxidized to form welding slag. Accordingly, there is a need for a drag cover designed to meet the requirements for weaving gas shield welding.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: to prior art not enough and defect, the utility model provides a protection is effectual, excellent in use effect's swing gas shield welds with dragging cover.
The technical scheme is as follows: the utility model discloses a swing gas shield welds and uses dragging cover, its characterized in that: the shell is of a hollow structure, the cross section of the head end of the shell is trapezoidal, the cross section of the tail end of the shell is semicircular, a gas pipeline and a clamp are arranged in the shell, holes corresponding to the gas pipeline and the clamp are formed in the top of the shell, and a copper sheet is arranged at the bottom of the shell; the shape of the cross section of the gas pipeline corresponds to that of the cross section of the shell, and a plurality of gas outlet holes are formed in the side part of the gas pipeline; the copper sheet is provided with a plurality of rows and a plurality of rows of air holes along the length direction and the width direction.
Wherein, the shell is a stainless steel or aluminum alloy shell.
Wherein, the gas pipeline is a stainless steel or red copper pipe body.
Wherein, the gas pipeline is of a tail end closed structure.
Wherein, the diameter of the hole corresponding to the clamper is 20 mm-25 mm.
Wherein, the diameter of the air holes on the copper sheet is 1.2 mm-1.6 mm, and the space between the air holes is 2.5 mm-3 mm.
Has the advantages that: compared with the prior art, the utility model has the following apparent advantage: 1. compared with the traditional nozzle, the welding gun penetrates through the middle of the dragging cover, and the protection ranges in the left direction, the right direction and the welding front direction are increased compared with the traditional dragging cover; 2. the welding gun clamping device has a good using effect, the welding gun penetrates through the dragging cover, the welding gun nozzle is clamped through clamping and loosening of the bolt on the clamping device, and the height can be quickly adjusted along the axial direction of the nozzle.
Drawings
Fig. 1 is a schematic top view of the present invention;
fig. 2 is a schematic sectional structure of the present invention;
fig. 3 is a schematic structural view of the gas pipeline of the present invention;
FIG. 4 is a schematic structural diagram of a copper sheet according to the present invention;
in the figure, 1 is a shell, 2 is a gas pipeline, 3 is a clamp, 4 is a copper sheet, and 5 is an air outlet.
Detailed Description
The technical solution of the present invention will be further described with reference to the accompanying drawings and the detailed description.
The utility model discloses a swing gas shield welds and uses dragging cover, its characterized in that: the shell 1 is of a hollow structure, the cross section of the head end of the shell 1 is trapezoidal, the cross section of the tail end of the shell 1 is semicircular, a gas pipeline 2 and a clamp holder 3 are arranged in the shell 1, holes corresponding to the gas pipeline 2 and the clamp holder 3 are formed in the top of the shell 1, and a copper sheet 4 is arranged at the bottom of the shell 1; the cross section of the gas pipeline 2 corresponds to the cross section of the shell 1, and a plurality of gas outlet holes 5 are formed in the side part of the gas pipeline 2; the copper sheet 4 is provided with a plurality of rows and a plurality of columns of air holes along the length direction and the width direction. Wherein, the shell 1 is a stainless steel or aluminum alloy shell; the gas pipeline 2 is a stainless steel or red copper pipe body; the gas pipeline 2 is of a tail end closed structure; the diameter of the hole corresponding to the clamp holder 3 is 20 mm-25 mm; the diameter of the air holes on the copper sheet 4 is 1.2 mm-1.6 mm, and the space between the air holes is 2.5 mm-3 mm.
During the use, welder passes from this dragging the cover in the middle of, for traditional dragging the cover, this application has increased about two directions and the protection scope in welding the place ahead, can realize the good protection to two directions of weld length and width. The welding gun penetrates through the dragging cover, the nozzle of the welding gun is clamped through clamping and loosening of the bolt on the clamp holder 3, the height can be adjusted along the axial direction of the nozzle, and the requirement of different structures on the installation height of the protective dragging cover can be met. The gas pipeline 2 is provided with a hole towards the upper end of the shell 1, gas is firstly vertical to the upper end of the shell 1 and then fills the whole shell 1, and finally is uniformly blown out through the small holes distributed on the copper sheet 4, so that the welding pool and the adjacent high-temperature area are protected.
The gas adopted by the drag cover mainly comprises pure argon, argon + carbon dioxide, argon + helium, argon + hydrogen and the like, and is divided into Ar99.99%, Ar 80% + CO according to the proportion220％、Ar97.5％+CO22.5％、Ar70％+He30％、Ar95％+H25%, etc. Compare with traditional cover that drags, the beneficial effects of the utility model are that: 1. compared with the traditional nozzle, the welding gun penetrates through the middle of the dragging cover, and the protection ranges in the left direction, the right direction and the welding front direction are increased compared with the traditional dragging cover; 2. the use effect is good, and the welding gun passes through the dragging cover, clamps the welding gun nozzle through the clamping and loosening of the bolt on the clamp holder 3, and can quickly adjust the height along the axial direction of the nozzle.
Claims (6)
1. The utility model provides a swing gas shield welds and uses dragging cover which characterized in that: the shell comprises a shell (1), wherein the shell (1) is of a hollow structure, the cross section of the head end of the shell (1) is trapezoidal, the cross section of the tail end of the shell (1) is semicircular, a gas pipeline (2) and a clamp holder (3) are arranged in the shell (1), holes corresponding to the gas pipeline (2) and the clamp holder (3) are formed in the top of the shell (1), and a copper sheet (4) is arranged at the bottom of the shell (1); the cross section of the gas pipeline (2) corresponds to the cross section of the shell (1) in shape, and a plurality of gas outlet holes (5) are formed in the side part of the gas pipeline (2); and a plurality of rows and columns of air holes are arranged on the copper sheet (4) along the length direction and the width direction.
2. The drag cover for weaving gas shield welding according to claim 1, characterized in that: the shell (1) is a stainless steel or aluminum alloy shell.
3. The drag cover for weaving gas shield welding according to claim 1, characterized in that: the gas pipeline (2) is a stainless steel or red copper pipe body.
4. The drag cover for weaving gas shield welding according to claim 1, characterized in that: the gas pipeline (2) is of a tail end closed structure.
5. The drag cover for weaving gas shield welding according to claim 1, characterized in that: the diameter of the hole corresponding to the clamper (3) is 20 mm-25 mm.
6. The drag cover for weaving gas shield welding according to claim 1, characterized in that: the diameter of the air holes on the copper sheet (4) is 1.2-1.6 mm, and the distance between the air holes is 2.5-3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920655719.7U CN209886882U (en) | 2019-05-09 | 2019-05-09 | Swinging gas shield welding drag cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920655719.7U CN209886882U (en) | 2019-05-09 | 2019-05-09 | Swinging gas shield welding drag cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209886882U true CN209886882U (en) | 2020-01-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920655719.7U Active CN209886882U (en) | 2019-05-09 | 2019-05-09 | Swinging gas shield welding drag cover |
Country Status (1)
| Country | Link |
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| CN (1) | CN209886882U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113414475A (en) * | 2021-07-09 | 2021-09-21 | 天津大学 | Argon and CO2Double-shielding-gas titanium alloy welding drag cover and welding method |
-
2019
- 2019-05-09 CN CN201920655719.7U patent/CN209886882U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113414475A (en) * | 2021-07-09 | 2021-09-21 | 天津大学 | Argon and CO2Double-shielding-gas titanium alloy welding drag cover and welding method |
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