CN204195038U - A kind of hidden arc welding device of oval cross section Circumferential Welds In Cylinders - Google Patents
A kind of hidden arc welding device of oval cross section Circumferential Welds In Cylinders Download PDFInfo
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- CN204195038U CN204195038U CN201420601016.3U CN201420601016U CN204195038U CN 204195038 U CN204195038 U CN 204195038U CN 201420601016 U CN201420601016 U CN 201420601016U CN 204195038 U CN204195038 U CN 204195038U
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- oval cross
- cylinders
- arc welding
- frock
- turning rolls
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Abstract
The utility model discloses a kind of hidden arc welding device of oval cross section Circumferential Welds In Cylinders, belong to welding field, comprise two pitch cylinder shell rings, its end face ovalize to be welded, become non-180 ° of angle cylindrical shells after both welding, also comprise turning rolls, being positioned over can by the two annulus frocks of turning rolls drive around its central shaft rotation on described turning rolls, fix the described shell ring of a joint in two frocks respectively, and two frock central shafts overlap with cylindrical shell center of gravity.The utility model can realize the submerged arc welding of oval cross section Circumferential Welds In Cylinders, ensures the final mass of product.
Description
Technical field
The utility model belongs to welding field, particularly relates to the submerged-arc welding of oval cross section Circumferential Welds In Cylinders.
Background technology
In prior art, some pressure vessel enclosure cylindrical shell is welded by two joints or more cylinder shell ring, forms the angle of non-180 ° between adjacent two shell rings.This kind of structure ring seam welding, adopts manual welding welding in prior art usually, and welding interval is long, reclamation work amount is large and quality cannot ensure.
Utility model content
The purpose of this utility model is: the welder proposing a kind of oval cross section Circumferential Welds In Cylinders, realizes the submerged arc welding of circumferential weld, ensures the final mass of product.
The utility model object is realized by following technical proposals:
A kind of hidden arc welding device of oval cross section Circumferential Welds In Cylinders, comprise two pitch cylinder shell rings, its end face ovalize to be welded, non-180 ° of angle cylindrical shells are become after both welding, also comprise turning rolls, be positioned on described turning rolls and by turning rolls drive around two annulus frocks of its central shaft rotation, fix the described shell ring of a joint in two frocks respectively, and two frock central shafts can overlap with cylindrical shell center of gravity.
In such scheme, shell ring is fixed in frock, and frock is positioned on turning rolls, drive frock to rotate by turning rolls, frock is rotated and is driven shell ring to rotate, and the circumferential weld rotation that two shell rings end face to be welded is formed is rotated, weld seam aimed at by welding equipment, and rotated welding along with the rotation of weld seam.Frock drive cylindrical shell on turning rolls with frock central shaft for axis of rotation rotation, and frock central shaft overlaps with cylindrical shell center of gravity, guarantees reliable and stable at time rotational of cylindrical shell thus, guarantees welding quality.
As selection, the center of gravity of each shell ring falls into the surfaces of revolution of frock on it respectively.
In such scheme, the center of gravity of shell ring falls on the surfaces of revolution of frock on it, independent shell ring can be placed on turning rolls around the steady rotation of frock central shaft, like this, after two joint shell rings assembling splits when welding, end face to be welded just can have when rotating welding better relative between stability.
As selection, described frock both ends of the surface are provided with the rib of annular round steel along edge.
In such scheme, frock both ends of the surface utilize annular round steel to fix, and prevent workpiece from rotation, departing from turning rolls.
As selection, described frock internal diameter is greater than the major axis value of cylindrical shell oval cross section.
As selection, described frock width is greater than turning rolls width, leaves and collects together momentum.
The main scheme of aforementioned the utility model and each further selection scheme thereof can independent assortment to form multiple scheme; be the utility model can adopt and claimed scheme: as the utility model; each selection can select any combination with other; those skilled in the art can understand there is multiple combination according to prior art and common practise after understanding the utility model scheme; be the claimed technical scheme of the utility model, do not do exhaustive at this.
The beneficial effects of the utility model: the submerged arc welding achieving Circumferential Welds In Cylinders, therefore can ensure the quality of production joint, can greatly enhance productivity again.
Accompanying drawing explanation
Fig. 1 is the structural representation of the cylindrical shell of the utility model embodiment;
Fig. 2 is the structural representation of the welder of the utility model embodiment;
Fig. 3 is the shell ring of the utility model embodiment and the assembly structure schematic diagram of frock;
Fig. 4 is the annular round steel of the utility model embodiment and the assembly structure schematic diagram of frock;
Fig. 5 is the perspective view of the welder of the utility model embodiment;
1 be shell ring, 2 be wherein circumferential weld, 3 be frock, 4 be annular round steel, 5 be cylindrical shell center of gravity, 6 be frock central shaft, 7 for turning rolls.
Detailed description of the invention
Following non-limiting examples is for illustration of the utility model.
Shown in figure 1, cylinder material is 14Cr1MoR, diameter of phi 3350mm, thickness 90mm, and end face and tubular axis angle are 11.25 °, and circumferential weld 2 groove type is asymmetric " X " type groove.
Shown in 5, the assembly structure of hidden arc welding device is as follows:
Comprise two pitch cylinder shell rings 1, its end face ovalize to be welded, 157.5 ° of angle cylindrical shells are become after both welding, also comprise turning rolls 7, to be positioned on turning rolls 7 and can to drive two annulus frocks 3 around its central shaft rotation by turning rolls 7, fix a joint shell ring 1 in two frocks 3 respectively, the center of gravity of each shell ring 1 falls into the surfaces of revolution of frock 3 on it respectively, and frock 3 central shaft 6 overlaps with cylindrical shell center of gravity 5.Frock 3 both ends of the surface are provided with the rib of annular round steel 4 along edge.Shown in Figure 3, frock 3 internal diameter is greater than the major axis value of cylindrical shell oval cross section.Shown in Figure 2, frock width is greater than turning rolls width, leaves and collects together momentum.
Concrete welding method is as follows:
1, shell ring position of centre of gravity is calculated, and cylindrical shell position of centre of gravity;
2, put ground sample, respectively welding equipment special tooling, frock in order to drive cylindrical shell on turning rolls with frock central shaft for axis of rotation rotation, frock position welding equipment is at two joint cylindrical shell position of centre of gravitys, and independent shell ring can be placed on turning rolls around the steady rotation of frock central shaft;
3, vertical assembling two shell ring, ensure that special tooling is concentric, and frock central shaft overlaps with cylindrical shell center of gravity;
4, be placed on turning rolls by assembly, driving is auxiliary, and preliminary operation moves, the spacing of adjustment special tooling and cylindrical shell; When ensureing to roll, assembly is not collected together on turning rolls;
5, spider submerged-arc welding machine girth weld is adopted.The method adopting equipment to combine from motion tracking and manual adjustment during girth welding adjusts Handpiece Location in real time, ensures the relative distance between head and cylindrical shell;
6, circumferential weld radiographic inspection, during circumferential weld film making, frock is not removed, and after film making is qualified, row is removed again.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. the hidden arc welding device of an oval cross section Circumferential Welds In Cylinders, comprise two pitch cylinder shell rings, its end face ovalize to be welded, non-180 ° of angle cylindrical shells are become after both welding, it is characterized in that: also comprise turning rolls, be positioned on described turning rolls and by turning rolls drive around two annulus frocks of its central shaft rotation, fix the described shell ring of a joint in two frocks respectively, and two frock central shafts can overlap with cylindrical shell center of gravity.
2. the hidden arc welding device of oval cross section Circumferential Welds In Cylinders as claimed in claim 1, is characterized in that: the center of gravity of each shell ring falls into the surfaces of revolution of frock on it respectively.
3. the hidden arc welding device of oval cross section Circumferential Welds In Cylinders as claimed in claim 1, is characterized in that: described frock both ends of the surface are provided with the rib of annular round steel along edge.
4. the hidden arc welding device of oval cross section Circumferential Welds In Cylinders as claimed in claim 1, is characterized in that: described frock internal diameter is greater than the major axis value of cylindrical shell oval cross section.
5. the hidden arc welding device of oval cross section Circumferential Welds In Cylinders as claimed in claim 1, is characterized in that: described frock width is greater than turning rolls width, leaves and collects together momentum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420601016.3U CN204195038U (en) | 2014-10-16 | 2014-10-16 | A kind of hidden arc welding device of oval cross section Circumferential Welds In Cylinders |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420601016.3U CN204195038U (en) | 2014-10-16 | 2014-10-16 | A kind of hidden arc welding device of oval cross section Circumferential Welds In Cylinders |
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| CN204195038U true CN204195038U (en) | 2015-03-11 |
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| CN201420601016.3U Active CN204195038U (en) | 2014-10-16 | 2014-10-16 | A kind of hidden arc welding device of oval cross section Circumferential Welds In Cylinders |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325214A (en) * | 2014-10-16 | 2015-02-04 | 东方电气集团东方锅炉股份有限公司 | Submerged arc welding method for circular seams of cylinders with elliptical sections and submerged arc welding device thereof |
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2014
- 2014-10-16 CN CN201420601016.3U patent/CN204195038U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325214A (en) * | 2014-10-16 | 2015-02-04 | 东方电气集团东方锅炉股份有限公司 | Submerged arc welding method for circular seams of cylinders with elliptical sections and submerged arc welding device thereof |
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| GR01 | Patent grant |