CN203817672U - Fixture for assembly welding of large-caliber steel pipe - Google Patents
Fixture for assembly welding of large-caliber steel pipe Download PDFInfo
- Publication number
- CN203817672U CN203817672U CN201420138171.6U CN201420138171U CN203817672U CN 203817672 U CN203817672 U CN 203817672U CN 201420138171 U CN201420138171 U CN 201420138171U CN 203817672 U CN203817672 U CN 203817672U
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- steel pipe
- fixture
- rod
- adjusting screw
- adjustment device
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Abstract
The utility model relates to a fixture for assembly welding of a large-caliber steel pipe. When two straight sides of a steel pipe are subjected to assembly welding, gaps and misalignment are not easy to adjust, and thus the welding quality is influenced. The utility model provides the fixture for assembly welding of the large-caliber steel pipe, which comprises a first clamping structure and a second clamping structure, wherein the first clamping structure and the second clamping structure are respectively provided with a clamping groove for clamping the corresponding straight side of the steel pipe, and are respectively connected with a compression bolt for compressing the corresponding straight side of the steel pipe. The fixture is characterized by also comprising a horizontal adjusting device and a vertical adjusting device, wherein the two ends of the horizontal adjusting device are respectively connected with the first clamping structure and the second clamping structure, and the vertical adjusting device is respectively connected with the first clamping structure and the second clamping structure. The fixture is simple in structure, reasonable in design, convenient to operate and high in welding quality.
Description
Technical field
The utility model relates to a kind of fixture for welding large-diameter steel pipe, belongs to mechanical field.
Background technology
Turbine system suit oil pipe line oil return pipe normal dia is Φ 508mm, Φ 600mm, Φ 762mm and Φ 914mm, adopts welded still pipe more.Welded still pipe also claims welded tube, is after cans, to weld the steel pipe made from steel plate or with steel.Welded still pipe production technology is simple, and production efficiency is high, and description is many, and equipment investment is few.Steam turbine suit oil pipe line oil return pipe welded still pipe wall thickness used mostly is the sheet metal of 10mm.Its making is divided into that blanking, plane limit (groove processing), volume are justified, longitudinal joint group to, longitudinal seam welding, circumferential weld group to seven key steps of girth welding.
Welded still pipe adopts steel plate on veneer reeling machine, to roll up after circle, and two groups of opposite side are carried out to pressure head.But because overall circularity exists deviation, cause transversion malposition and the up and down dislocation of group to straight flange.According to welding method difference, the group of longitudinal joint is also different to gap, and longitudinal joint misalignment≤1mm.Therefore group to time need adjustment group to gap and unfitness of butt joint.In the past group to time use the instrument such as crowbar to regulate laterally and dislocation up and down, then the mode of spot welding is grouping.Which group pair, is difficult for adjusting group to gap and misalignment, affects welding quality.
Utility model content
The purpose of this utility model is to overcome above shortcomings in prior art, and provides a kind of reasonable in design, convenient mounting and clamping, the fixture for welding large-diameter steel pipe that welding quality is high.
The technical scheme in the invention for solving the above technical problem is: this is used for the fixture of welding large-diameter steel pipe, comprise be installed for No. one structure and No. two structures that are installed, in the structure that is installed for No. one and No. two structures that are installed, be equipped with the draw-in groove for snapping in steel pipe straight flange, the structure that is installed for No. one and the structure that is installed for No. two are all connected with the hold-down bolt for compressing steel pipe straight flange, it is characterized in that: also comprise lateral adjustment device and up-down adjustment device, described lateral adjustment device two ends are connected be installed for No. one structure and No. two structures that are installed respectively, described up-down adjustment device is connected be installed for No. one structure and No. two structures that are installed respectively.Need two straight flanges of welding to pack in draw-in groove and after compressing steel pipe, can regulate the lateral clearance and the upper-lower position relation that are installed structure for No. one and are installed for No. two between structure by lateral adjustment device and up-down adjustment device, thereby regulate lateral clearance and the upper-lower position relation of two straight flanges, easy to operate, and welding quality is high.
Lateral adjustment device described in the utility model comprises adjusting screw(rod) No. one, and described adjusting screw(rod) two ends are threaded be installed for No. one structure and No. two structures that are installed respectively.While rotating an adjusting screw(rod), the adjustable gap that is installed structure for No. one and is installed between structure for No. two, thus adjust the lateral clearance between two straight flanges, ensure welding quality.
Up-down adjustment device described in the utility model comprises adjusting screw(rod) No. two, and described No. two adjusting screw(rod) two ends are threaded be installed for No. one structure and No. two structures that are installed respectively.While rotating No. two adjusting screw(rod)s, the adjustable upper-lower position relation that is installed structure for No. one and is installed for No. two between structure, thus adjust the distance between the upper and lower between two straight flanges, it is maintained an equal level, ensure welding quality.
The middle part of an adjusting screw(rod) described in the utility model and No. two adjusting screw(rod)s is equipped with outer-hexagonal, and the hand of spiral at described adjusting screw(rod) two ends is contrary, and the hand of spiral at described No. two adjusting screw(rod) two ends is contrary.The wrench operated easy to use that arranges of outer-hexagonal regulates.
In the structure that is installed described in the utility model, be fixed with stiffener.The structure stress that prevents from being installed for No. one in adjustment process is concentrated and is ruptured
The utility model compared with prior art, have the following advantages and effect: simple in structure, reasonable in design, need two straight flanges of welding to pack in draw-in groove and after compressing steel pipe, can regulate lateral clearance and the upper-lower position relation between two straight flanges by lateral adjustment device and up-down adjustment device, easy to operate, and welding quality is high.
Brief description of the drawings
Fig. 1 is the structural representation for the fixture of welding large-diameter steel pipe in the utility model embodiment.
Fig. 2 is the left TV structure schematic diagram of Fig. 1.
Fig. 3 is this use state diagram for the fixture of welding large-diameter steel pipe.
Fig. 4 is the left TV structure schematic diagram of Fig. 3.
Detailed description of the invention
Below in conjunction with accompanying drawing and by embodiment, the utility model is described in further detail, and following examples are to explanation of the present utility model and the utility model is not limited to following examples.
Embodiment.
Referring to Fig. 1 to Fig. 4, the fixture for welding large-diameter steel pipe in the present embodiment comprises the structure 1 of being installed for No., No. two be installed structure 2, hold-down bolt 3, lateral adjustment device 4, up-down adjustment device 5, stiffener 6 and steel pipes 9.
In be installed for No. one structure 1 and the structure 2 that is installed for No. two in the present embodiment, be equipped with the draw-in groove 7 for snapping in steel pipe straight flange, when welding, two straight flanges of steel pipe snap in respectively in the draw-in groove 7 that is installed structure 1 for No. one and be installed for No. two in structure 2, the structure 1 that is installed for No. one and the structure 2 that is installed for No. two are all connected with the hold-down bolt 3 for compressing steel pipe straight flange, lateral adjustment device 4 two ends are connected be installed for No. one structure 1 and the structure 2 that is installed for No. two respectively, up-down adjustment device 5 is connected be installed for No. one structure 1 and the structure 2 that is installed for No. two respectively, after steel pipe is needed two straight flanges of welding to pack into compress in draw-in groove 7 and by hold-down bolt 3, can regulate two lateral clearance and upper-lower position relations between straight flange by lateral adjustment device 4 and up-down adjustment device 5, easy to operate, and make welding quality high.
Lateral adjustment device 4 in the present embodiment comprises adjusting screw(rod) 41 No. one, adjusting screw(rod) 41 two ends are threaded be installed for No. one structure 1 and the structure 2 that is installed for No. two respectively, while rotating an adjusting screw(rod) 41, the adjustable gap that is installed structure 1 for No. one and is installed between structure 2 for No. two, thereby adjust the lateral clearance between two straight flanges, ensure welding quality.
Up-down adjustment device 5 in the present embodiment comprises adjusting screw(rod) 51 No. two, No. two adjusting screw(rod) 51 arranges in the vertical direction, No. two adjusting screw(rod) 51 two ends are threaded be installed for No. one structure 1 and the structure 2 that is installed for No. two respectively, while rotating No. two adjusting screw(rod)s 51, the adjustable upper-lower position relation that is installed structure 1 for No. one and is installed for No. two between structure 2, thereby adjust the distance between the upper and lower between two straight flanges, it is maintained an equal level, ensure welding quality.
An adjusting screw(rod) 41 in the present embodiment and the middle part of No. two adjusting screw(rod)s 51 are equipped with outer-hexagonal 8, the hand of spiral at adjusting screw(rod) 41 two ends is contrary, the hand of spiral at No. two adjusting screw(rod) 51 two ends is contrary, and the wrench operated easy to use that arranges of outer-hexagonal 8 regulates.
The structure 1 that is installed for No. one in the present embodiment is provided with segmental arc 11, and up-down adjustment device 5 is connected to segmental arc 11 places, is fixed with stiffener 6 on segmental arc 11, and segmental arc 11 place's stress of the structure 1 that prevents from being installed for No. in adjustment process are concentrated and ruptured.
In addition, it should be noted that, the specific embodiment described in this description, shape, institute's title of being named etc. of its parts and components can be different, and the above content described in this description is only to the utility model structure and the explanation of accompanying drawing example.All equivalence variation or simple change of doing according to described structure, feature and the principle of the utility model patent design, are included in the protection domain of the utility model patent.The utility model person of ordinary skill in the field can make various amendments or supplements or adopt similar mode to substitute described specific embodiment; only otherwise depart from structure of the present utility model or surmount this scope as defined in the claims, all should belong to protection domain of the present utility model.
Claims (5)
1. the fixture for welding large-diameter steel pipe, comprise be installed for No. one structure and No. two structures that are installed, in the structure that is installed for No. one and No. two structures that are installed, be equipped with the draw-in groove for snapping in steel pipe straight flange, the structure that is installed for No. one and the structure that is installed for No. two are all connected with the hold-down bolt for compressing steel pipe straight flange, it is characterized in that: also comprise lateral adjustment device and up-down adjustment device, described lateral adjustment device two ends are connected be installed for No. one structure and No. two structures that are installed respectively, and described up-down adjustment device is connected be installed for No. one structure and No. two structures that are installed respectively.
2. the fixture for welding large-diameter steel pipe according to claim 1, is characterized in that: described lateral adjustment device comprises adjusting screw(rod) No. one, and described adjusting screw(rod) two ends are threaded be installed for No. one structure and No. two structures that are installed respectively.
3. the fixture for welding large-diameter steel pipe according to claim 1, is characterized in that: described up-down adjustment device comprises adjusting screw(rod) No. two, and described No. two adjusting screw(rod) two ends are threaded be installed for No. one structure and No. two structures that are installed respectively.
4. according to the fixture for welding large-diameter steel pipe described in claim 2 or 3, it is characterized in that: the middle part of a described adjusting screw(rod) and No. two adjusting screw(rod)s is equipped with outer-hexagonal, the hand of spiral at described adjusting screw(rod) two ends is contrary, and the hand of spiral at described No. two adjusting screw(rod) two ends is contrary.
5. the fixture for welding large-diameter steel pipe according to claim 1, is characterized in that: in the described structure that is installed, be fixed with stiffener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420138171.6U CN203817672U (en) | 2014-03-26 | 2014-03-26 | Fixture for assembly welding of large-caliber steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420138171.6U CN203817672U (en) | 2014-03-26 | 2014-03-26 | Fixture for assembly welding of large-caliber steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203817672U true CN203817672U (en) | 2014-09-10 |
Family
ID=51473215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420138171.6U Expired - Fee Related CN203817672U (en) | 2014-03-26 | 2014-03-26 | Fixture for assembly welding of large-caliber steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203817672U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106624587A (en) * | 2017-03-14 | 2017-05-10 | 润海重工江苏有限公司 | Spot welding table for assisting steel cylinder forming |
| CN109500486A (en) * | 2018-12-22 | 2019-03-22 | 山西汾西重工有限责任公司 | The positioning and welding method of longitudinal abutment joint of aluminium alloy thick plate edge rolling shell |
| CN110076516A (en) * | 2019-04-10 | 2019-08-02 | 佛山汇百盛激光科技有限公司 | A kind of welding fixture and welding cart |
| CN112264758A (en) * | 2020-10-14 | 2021-01-26 | 哈尔滨锅炉厂有限责任公司 | Portable novel longitudinal seam assembling device for plate coil sleeve |
| CN113001103A (en) * | 2019-12-20 | 2021-06-22 | 郑州宏达汽车工业有限公司 | Rapid tank body assembling method for powder material transport vehicle |
-
2014
- 2014-03-26 CN CN201420138171.6U patent/CN203817672U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106624587A (en) * | 2017-03-14 | 2017-05-10 | 润海重工江苏有限公司 | Spot welding table for assisting steel cylinder forming |
| CN109500486A (en) * | 2018-12-22 | 2019-03-22 | 山西汾西重工有限责任公司 | The positioning and welding method of longitudinal abutment joint of aluminium alloy thick plate edge rolling shell |
| CN109500486B (en) * | 2018-12-22 | 2023-01-03 | 山西汾西重工有限责任公司 | Method for positioning and welding longitudinal butt joint of aluminum alloy thick plate rolling shell |
| CN110076516A (en) * | 2019-04-10 | 2019-08-02 | 佛山汇百盛激光科技有限公司 | A kind of welding fixture and welding cart |
| CN110076516B (en) * | 2019-04-10 | 2024-02-09 | 佛山汇百盛激光科技有限公司 | Welding jig and welding shallow |
| CN113001103A (en) * | 2019-12-20 | 2021-06-22 | 郑州宏达汽车工业有限公司 | Rapid tank body assembling method for powder material transport vehicle |
| CN112264758A (en) * | 2020-10-14 | 2021-01-26 | 哈尔滨锅炉厂有限责任公司 | Portable novel longitudinal seam assembling device for plate coil sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG BOFAN POWER EQUIPMENT CO., LTD. Free format text: FORMER NAME: ZHEJIANG BOFINE POWER EQUIPMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: The industrial park of Jiaxing Haiyan County of Zhejiang province 314300 City Qingfeng South Road No. 5 Patentee after: ZHEJIANG BOFINE POWER EQUIPMENT Co.,Ltd. Address before: The industrial park of Jiaxing Haiyan County of Zhejiang province 314300 City Qingfeng South Road No. 5 Patentee before: Zhejiang Bofine Power Equipment Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 |