CN216632965U - Small-bore pipeline submerged arc welding auxiliary fixtures - Google Patents
Small-bore pipeline submerged arc welding auxiliary fixtures Download PDFInfo
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- CN216632965U CN216632965U CN202122937005.5U CN202122937005U CN216632965U CN 216632965 U CN216632965 U CN 216632965U CN 202122937005 U CN202122937005 U CN 202122937005U CN 216632965 U CN216632965 U CN 216632965U
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- positioning plate
- supporting pipe
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Abstract
The utility model discloses a small-caliber pipeline submerged-arc welding auxiliary tool which comprises an upper part and a lower part, wherein the upper part comprises a V-shaped limiting plate, an upper supporting pipe column and an adjusting nut; the lower part comprises a positioning plate, a lower supporting tubular column and a bottom plate, a via hole is formed in the center of the positioning plate, the positioning plate is fixedly connected to the top of the lower supporting tubular column, the bottom plate is fixedly connected to the bottom of the lower supporting tubular column, an inclined strut is arranged on the lower part of the lower supporting tubular column, and the inclined strut is fixedly connected with the bottom plate; the upper support pipe column penetrates through the through hole and is inserted into the lower support pipe column, and the adjusting nut is supported on the positioning plate. The auxiliary rolling clamping fixture is used for assisting the rolling clamping fixture to support and position the cantilever pipe section, ensures that the cantilever pipe section rotates stably during welding, prevents the welding position from deviating, and ensures the welding quality.
Description
Technical Field
The utility model relates to a welding tool, in particular to an auxiliary tool for submerged-arc welding of a small-caliber pipeline.
Background
The submerged arc welding method for the pipeline is characterized in that a welding gun is fixed, a weldment rotates, welding is always kept in a flat welding position, a pipe section is placed on a rolling tire, and the rotation of the rolling tire drives the pipe section to rotate to achieve welding. The pipe diameter range that pipeline submerged arc welding can weld is DN 100-DN 2500, and when the pipeline of more than DN400 is welded and the pipeline section is more than 5 tons, the pipeline needs two rolling tires to support the pipeline section to rotate for welding. However, a pipe with a pipe diameter smaller than DN400 is generally provided with a rolling tire, and when the welded pipe is longer, the pipe cannot be balanced and moves in a plane in the rotating process of the rolling tire, so that the welding position is deviated, various welding defects are generated, and the welding quality is influenced. Therefore, a tool needs to be developed to support and position the pipe so as to ensure the stability of rotation.
SUMMERY OF THE UTILITY MODEL
The utility model provides an auxiliary tool for submerged-arc welding of a small-caliber pipeline, which is used for assisting a rolling mould to support and position a cantilever pipe section and ensuring the rotation stability of the cantilever pipe section during welding, so as to solve the technical problems in the known technology.
The technical scheme adopted by the utility model for solving the technical problems in the prior art is as follows: a small-caliber pipeline submerged-arc welding auxiliary tool comprises an upper part and a lower part, wherein the upper part comprises a V-shaped limiting plate, an upper supporting pipe column and an adjusting nut; the lower part comprises a positioning plate, a lower supporting pipe column and a bottom plate, a via hole is formed in the center of the positioning plate, the positioning plate is fixedly connected to the top of the lower supporting pipe column, the bottom plate is fixedly connected to the bottom of the lower supporting pipe column, an inclined strut is arranged on the lower part of the lower supporting pipe column, and the inclined strut is fixedly connected with the bottom plate; the upper support pipe column penetrates through the through hole and is inserted into the lower support pipe column, and the adjusting nut is supported on the positioning plate.
And a handle is arranged on the outer side of the adjusting nut.
The inclined struts are three and are uniformly arranged along the circumferential direction.
The inclined strut is made of angle steel.
The utility model has the advantages and positive effects that: the auxiliary rolling clamping fixture is matched with a rolling clamping fixture of an automatic submerged arc welding machine for use, is used for assisting the rolling clamping fixture to support and position the cantilever pipe section, ensures that the cantilever pipe section is stable in rotation during welding, prevents the welding position from deviating, and ensures the welding quality. The utility model has simple structure, is convenient to manufacture and install by using local materials and can be widely applied.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic diagram of the application of the present invention.
In the figure: 1. a V-shaped limiting plate; 2. an upper support pipe column; 3. positioning a plate; 4. adjusting the nut; 5. a lower support string; 6. a base plate; 7. bracing; 8. a handle.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:
referring to fig. 1 and 2, the auxiliary tool for submerged arc welding of the small-caliber pipeline comprises an upper part and a lower part, wherein the upper part comprises a V-shaped limiting plate 1, an upper supporting pipe column 2 and an adjusting nut 4, the V-shaped limiting plate 1 is fixedly connected to the top of the upper supporting pipe column 2, a screw thread is arranged on the outer side of the upper supporting pipe column 2, and the adjusting nut 4 in threaded connection with the upper supporting pipe column 2 is arranged on the outer side of the upper supporting pipe column 2; the lower part comprises a positioning plate 3, a lower supporting tubular column 5 and a bottom plate 6, a via hole is formed in the center of the positioning plate 3, the positioning plate 3 is fixedly connected to the top of the lower supporting tubular column 5, the bottom plate 6 is fixedly connected to the bottom of the lower supporting tubular column 5, an inclined strut 7 is arranged on the lower supporting tubular column 5, and the inclined strut 7 is fixedly connected with the bottom plate 6; the upper support pipe column 2 penetrates through the through hole and is inserted into the lower support pipe column 5, and the adjusting nut 4 is supported on the positioning plate 3.
In the present embodiment, a handle 8 is disposed outside the adjusting nut 4 for facilitating the adjusting operation. The inclined struts 7 are three and are uniformly arranged along the circumferential direction. The inclined strut 7 is made of angle steel and is convenient to manufacture. The bottom plate 6 is a steel plate with the thickness of 450mm multiplied by 450mm, and the thickness of the steel plate is more than or equal to 10 mm. The lower supporting pipe column 5 is made of a pipe of ND80, the length is 500mm, the top is connected with a positioning plate through welding, the specification of the positioning plate is 100mm multiplied by 100mm, and a through hole with the diameter of 50mm is formed in the middle of the positioning plate. The upper support column 2 is made of a screw of DN50 and has a length of 500 mm. The handle 8 is made of flat steel with proper thickness, the length is 100mm, and the height of the upper supporting pipe column can be adjusted by rotating the handle. The lower support pipe column 5 and the bottom plate 6 are connected together by welding. And meanwhile, the three inclined struts 7 are connected with the lower support tubular column in a welding mode. The angle between the fulcrums of each inclined strut 7 is 120 degrees, and the included angle between each inclined strut 7 and the lower support pipe column 5 is 60 degrees. The V-shaped limiting plate 1 is made of a steel plate with the width of 200mm and the length of 500mm, and the angle of the bottom of the groove is 120 degrees. The V-shaped limiting plate 1 and the upper supporting pipe column 2 are connected together through welding.
When a pipeline submerged arc welding machine is used for welding a pipe with the pipe diameter smaller than DN400, two pipe sections are firstly assembled on the ground and subjected to backing welding, after the backing welding is completed, the pipe is placed on a rolling clamping fixture to start submerged arc automatic welding, one side of the pipe is placed on the rolling clamping fixture, the other side of the pipe is placed on the tool, and in the welding process, a V-shaped limiting plate of the tool can keep the pipe stable in the rotating process and ensure the welding quality, please refer to figure 2. When welding the pipe of different pipe diameters, accessible rotation adjusting nut 4, the height of support tubular column 2 on the adjustment finely tunes the frock height, makes the frock height keep unanimous with the rolling child height, has guaranteed the levelness of pipe.
Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and those skilled in the art can make many modifications without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (4)
1. A welding auxiliary tool for submerged arc welding of a small-bore pipeline is characterized by comprising an upper part and a lower part, wherein,
the upper part comprises a V-shaped limiting plate, an upper supporting pipe column and an adjusting nut, the V-shaped limiting plate is fixedly connected to the top of the upper supporting pipe column, a screw thread is arranged on the outer side of the upper supporting pipe column, the adjusting nut in threaded connection with the upper supporting pipe column is arranged on the outer side of the upper supporting pipe column, and a handle is arranged on the outer side of the adjusting nut;
the lower part comprises a positioning plate, a lower supporting pipe column and a bottom plate, a via hole is formed in the center of the positioning plate, the positioning plate is fixedly connected to the top of the lower supporting pipe column, the bottom plate is fixedly connected to the bottom of the lower supporting pipe column, an inclined strut is arranged on the lower part of the lower supporting pipe column, and the inclined strut is fixedly connected with the bottom plate;
the upper support pipe column penetrates through the through hole and is inserted into the lower support pipe column, and the adjusting nut is supported on the positioning plate.
2. The small-caliber pipeline submerged arc welding auxiliary tool as claimed in claim 1, wherein a handle is arranged on the outer side of the adjusting nut.
3. The auxiliary tool for submerged arc welding of the small-caliber pipeline as claimed in claim 1, wherein the number of the inclined struts is three, and the inclined struts are uniformly arranged along the circumferential direction.
4. The small-caliber pipeline submerged arc welding auxiliary tool according to claim 1, wherein the inclined strut is made of angle steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122937005.5U CN216632965U (en) | 2021-11-26 | 2021-11-26 | Small-bore pipeline submerged arc welding auxiliary fixtures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122937005.5U CN216632965U (en) | 2021-11-26 | 2021-11-26 | Small-bore pipeline submerged arc welding auxiliary fixtures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216632965U true CN216632965U (en) | 2022-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122937005.5U Active CN216632965U (en) | 2021-11-26 | 2021-11-26 | Small-bore pipeline submerged arc welding auxiliary fixtures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216632965U (en) |
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2021
- 2021-11-26 CN CN202122937005.5U patent/CN216632965U/en active Active
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