CN109986245A - A kind of pipeline group welding equipment back-pressure protection tool - Google Patents
A kind of pipeline group welding equipment back-pressure protection tool Download PDFInfo
- Publication number
- CN109986245A CN109986245A CN201910315393.8A CN201910315393A CN109986245A CN 109986245 A CN109986245 A CN 109986245A CN 201910315393 A CN201910315393 A CN 201910315393A CN 109986245 A CN109986245 A CN 109986245A
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- China
- Prior art keywords
- expansion block
- ventilating shaft
- pipeline
- connecting plate
- pressing plate
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
A kind of pipeline group welding equipment back-pressure protection tool, it is related to pipeline welding field, when to solve to weld pipeline in the prior art, it needs in pipe full of carbon dioxide, it will cause waste, problem at high cost, including pressing plate, expansion block, connecting plate, ventilating shaft, gas nozzle and screw, pressing plate and connecting plate are connected by screw to, circular hole is machined in the middle part of pressing plate, at least two expansion blocks are along the circumferential direction uniformly provided between pressing plate and connecting plate, expansion block is inclined-plane close to center of circle end, multiple ventilation pipes are equipped in expansion block, multiple expansion blocks constitute a flange, at this time, expansion block inclined-plane constitutes the centre bore for being located at flange center, flange circle circumferential surface is machined with ventilation annular groove, the ventilating shaft cooperated with expansion block inclined-plane is equipped in the centre bore of flange center, pipeline is equipped in ventilating shaft, ventilation pipe inside expansion block, the gas nozzle on the outside of pipeline and circular hole in ventilating shaft according to Secondary connection.The present apparatus reduces the usage amount of carbon dioxide in welding process, plays economic effect, and reduce environmental pollution.
Description
Technical field
The present invention relates to pipeline welding technology field, specially a kind of pipeline group welding equipment carries on the back protection tool.
Background technique
In the welding process of metal tubes, due to pipeline be in outside weldings, welding process inner tubal wall due to lacking
Carbon dioxide is easy to produce nitridation hole defect.Normal welding needs to be full of carbon dioxide in entire pipe, and needs logical in real time
Gas can take whole filling CO 2 method in pipeline, but the pipeline for being relatively large in diameter, due to pipeline for small diameter pipeline
Inner space is big, and such carbon dioxide waste rate is higher and increases welding cost, and the excessive release meeting of carbon dioxide
The respiratory center of operator is damaged, greenhouse effects can be also aggravated.
Summary of the invention
The purpose of the present invention is: when for welding pipeline in the prior art, need in pipe full of carbon dioxide, in this way meeting
Cause waste, it is at high cost, and can injure operator respiratory center and aggravation greenhouse effects the problem of.
The present invention adopts the following technical scheme that realization: a kind of pipeline group welding equipment back-pressure protection tool, including pressing plate 1, expansion block
3, connecting plate 4, ventilating shaft 6, gas nozzle 7 and screw 9, the pressing plate 1 and the connecting plate 4 are connected by screw 9, the pressing plate 1
Middle part is machined with circular hole, and at least two expansion blocks 3 are along the circumferential direction uniformly provided between the pressing plate 1 and the connecting plate 4, described
Expansion block 3 is inclined-plane close to center of circle end, and multiple ventilation pipes are equipped in the expansion block 3, and multiple expansion blocks 3 constitute a flange, at this point,
3 inclined-plane of expansion block constitutes the centre bore for being located at flange center, and flange circle circumferential surface is machined with ventilation annular groove, the center of the flange center
It is equipped with the ventilating shaft 6 cooperated with 3 inclined-plane of expansion block in hole, pipeline, the snorkel inside the expansion block 3 are equipped in the ventilating shaft 6
Gas nozzle 7 on the outside of road, pipeline and circular hole in ventilating shaft 6 is sequentially communicated.
Further, it is inclined-plane that the expansion block 3, which is equipped with protrusion 11, described raised 11 backwards to the one side of ventilating shaft 6, described
Be machined with through-hole in the middle part of connecting plate 4,6 other end of ventilating shaft, which is equipped with, breaks off relations 5, it is described break off relations 5 be equipped with in protrusion 11 tiltedly
The wedge-shaped part 12 of face cooperation, the unhook 5 are slided in the through-hole of connecting plate 4.
Further, the ventilating shaft 6 is fixedly connected or is rotatablely connected with unhook 5.
Further, described device further includes clamp nut 10, and the clamp nut 10 is threadedly coupled with ventilating shaft 6.
Further, flat key 8 is equipped between the pressing plate 1 and the connecting plate 4.
Further, handle hole 13 is machined in the expansion block 3, the handle hole 13 is equipped with sealing ring 2.
Further, the expansion block 3 is 4.
The present invention by adopting the above technical scheme, has the following beneficial effects: apparatus of the present invention by the way that expansion block 3 to be placed in and to weld
Between the pipeline connect, make carbon dioxide by the ventilation pipe in expansion block 3, then through ventilation annular groove release, the present apparatus is just for wanting
The place release carbon dioxide of welding, avoids in entire pipe full carbon dioxide, saves the use of carbon dioxide, and
Due to not needing to avoid the leakage of carbon dioxide, protect environment entire pipe full carbon dioxide, so that operation
Personnel are in welding, it is not necessary to wear heavy breathing mask, alleviate the burden of operator, improve work efficiency.And
The present apparatus makes 3 distending of expansion block by the wedge structure between ventilating shaft 6 and expansion block 3, plays and fixes two pipelines to be welded
Effect；
Since the unhook 5 in the present apparatus constitutes wedge structure with ventilating shaft 6, so that expansion block 3 is easy the present apparatus after use
It withdraws, and present apparatus structure is simple, production cost is low, and the present apparatus is provided with handle hole 13 and sealing ring 2, and handle hole 13 is just
In production and processing, stomata can also be cleared up in air-hole blockage, sealing ring 2 can be with seal operation hole 13 when usually using.
Detailed description of the invention
Fig. 1 is schematic view of the front view of the invention.
Fig. 2 is cross-sectional view of the invention.
Specific embodiment
Specific embodiment 1: present embodiment is illustrated below with reference to Fig. 1 and Fig. 2, it is in the present embodiment, a kind of
Pipeline group welding equipment back-pressure protection tool, including pressing plate 1, expansion block 3, connecting plate 4, ventilating shaft 6, gas nozzle 7 and screw 9, the pressing plate 1
It is connected with the connecting plate 4 by screw 9, circular hole is machined in the middle part of the pressing plate 1, between the pressing plate 1 and the connecting plate 4
At least two expansion blocks 3 are along the circumferential direction uniformly provided with, the expansion block 3 is inclined-plane close to center of circle end, is equipped in the expansion block 3 multiple
Ventilation pipe, multiple expansion blocks 3 constitute a flange, at this point, 3 inclined-plane of expansion block constitutes the centre bore for being located at flange center, flange circle
Circumferential surface is machined with ventilation annular groove, and the ventilating shaft 6 cooperated with 3 inclined-plane of expansion block is equipped in the centre bore of the flange center, described logical
Pipeline is equipped in gas axis 6, the ventilation pipe inside the expansion block 3, the gas nozzle 7 on the outside of pipeline and circular hole in ventilating shaft 6 are successively
Connection.
In use, first the gas nozzle 7 of welding equipment back-pressure protection tool is completely embedded with carbon dioxide plants appendix, then will dress
Weldering back-pressure protection tool penetrates in pipeline, the ventilating shaft 6 that staff pushes gas nozzle 7 to connect, meanwhile, one is applied to connecting plate 4
A and thrust opposite effect power move the present apparatus will not because ventilating shaft 6 is pushed in pipeline, and ventilating shaft 6 squeezes swollen
Block 3 moves around, so that 3 swelling of expansion block can guarantee two pipe alignments to connect in inner wall of the pipe, at this point, in expansion block 3
The gap to be welded of annular groove correspondence, due to the reaction force that there are frictional force, when ventilation is generated between ventilating shaft 6 and expansion block 3
It will not be retracted less than the frictional force between ventilating shaft 6 and expansion block 3, therefore after the expansion of expansion block 3, meanwhile, the expansion block 3 after expansion can also
To be used to two pipelines to be welded of Auxiliary support, when welding, is passed through carbon dioxide gas, carries out when can play welding to inner wall
The effect of carbon-dioxide protecting.
It should be noted that pipeline of the ventilation pipe on the complete distending Shi Caiyu ventilating shaft 6 of expansion block 3 in expansion block 3 connects completely
It is logical, and size when the complete distending of the present apparatus, it should be slightly bigger than the size of pipeline to be welded, just can guarantee carbon dioxide in this way
Leakage is reduced, and can also two pipelines to be welded of Auxiliary support.
When welding is completed, when needing to remove the present apparatus, gas nozzle 7 is pulled, meanwhile, one and pull direction are applied to pressing plate 1
Opposite effect power, expansion block 3 and ventilating shaft 6 overcome frictional force to separate, can be at this point, expansion block 3 is no longer to inner wall of the pipe applied force
The present apparatus is pulled out out of pipeline.
Apparatus of the present invention, just for the place release carbon dioxide to be welded, are avoided and are entirely managed by using expansion block 3
Road is full of carbon dioxide, saves carbon dioxide, and present apparatus expansion block 3 is placed between the pipeline to be welded, passes through ventilating shaft 6
With the wedge structure between expansion block 3, make 3 distending of expansion block, that is, plays the role of fixing two pipelines to be welded, and due to
Expansion block 3 and tube contacts portion are sunk structure, constitute a small sealing space, further reduce the use of carbon dioxide
Amount.
Since the present apparatus needs staff to operate, the present apparatus is only applicable to the pipeline welding of middle short length.
Specific embodiment 2: present embodiment is the further improvement to specific embodiment one, present embodiment with
Protrusion 11, described raised 11 is equipped with backwards to the one side of ventilating shaft 6 is oblique to the expansion block 3 that is distinguished as of specific embodiment one
Face, is machined with through-hole in the middle part of the connecting plate 4, and 6 other end of ventilating shaft, which is equipped with, breaks off relations 5, and described break off relations 5 is equipped with and protrusion
The wedge-shaped part 12 of 11 ramps cooperation, the unhook 5 are slided in the through-hole of connecting plate 4.
After welding, gas nozzle 7 is pulled, so that ventilating shaft 6 and expansion block 3 overcome frictional force to separate, it is swollen that gas releases expansion block 3
Swollen, the drive ventilating shaft 6 of gas nozzle 7 moves, and then drives 5 movements of breaking off relations, and utilizes the wedge structure between expansion block 3 and unhook 5
Expansion block 3 is withdrawn, present apparatus tool is smoothly withdrawn from into pipeline afterwards.After present embodiment realizes welding, the solution of the present apparatus
Remove and recycle so that reclaimer operation it is simple, conveniently, it is high-efficient.
Specific embodiment 3: present embodiment is the further improvement to specific embodiment two, present embodiment with
Specific embodiment two be distinguished as the ventilating shaft 6 with break off relations 5 to be fixedly connected or be rotatablely connected.
Specific embodiment 4: present embodiment is the further improvement to specific embodiment one, present embodiment with
The described device that is distinguished as of specific embodiment one further includes clamp nut 10, and the clamp nut 10 connects with 6 screw thread of ventilating shaft
It connects.
It is closer that clamp nut 10 connects gas nozzle 7 and ventilating shaft 6, when avoiding pulling gas nozzle 7, gas nozzle 7 and ventilating shaft 6
Separation.
Specific embodiment 5: present embodiment is the further improvement to specific embodiment one, present embodiment with
Specific embodiment one is distinguished as between the pressing plate 1 and the connecting plate 4 equipped with flat key 8.
Flat key 8 is arranged between pressing plate 1 and connecting plate 4, plays the role of positioning and connection.
Specific embodiment 6: present embodiment is the further improvement to specific embodiment one, present embodiment with
Specific embodiment one is distinguished as being machined with handle hole 13 in the expansion block 3, and the handle hole 13 is equipped with sealing ring 2.
Handle hole 13 facilitates the production and processing of expansion block 3, and when 3 air-hole blockage of expansion block, can pass through handle hole 13
The stomata of expansion block 3 is cleared up.
Usually in use, preventing carbon dioxide leakage using 2 seal operation hole 13 of sealing ring.
Specific embodiment 7: present embodiment is the further improvement to specific embodiment one, present embodiment with
The expansion block 3 that is distinguished as of specific embodiment one is 4.
Expansion block 3 is generally located on 2 to 8, be provided with 4 it is ideal, setting expansion block 3 be 4 when, expansion it is strong
Degree is all most perfect condition to saving of the supporting role of pipeline, carbon dioxide etc..
It should be noted that specific embodiment is only the explanation and illustration to technical solution of the present invention, it cannot be with this
Limit rights protection scope.What all claims according to the present invention and specification were made is only locally to change, Reng Yingluo
Enter in protection scope of the present invention.
Claims (7)
1. a kind of pipeline group welding equipment back-pressure protection tool, it is characterised in that: including pressing plate (1), expansion block (3), connecting plate (4), lead to
Gas axis (6), gas nozzle (7) and screw (9), the pressing plate (1) and the connecting plate (4) are connected by screw (9), the pressing plate
(1) middle part is machined with circular hole, and it is swollen to be along the circumferential direction uniformly provided at least two between the pressing plate (1) and the connecting plate (4)
Block (3), the expansion block (3) are inclined-plane close to center of circle end, are equipped with multiple ventilation pipes, multiple expansion block (3) structures in the expansion block (3)
At a flange, at this point, expansion block (3) inclined-plane constitutes the centre bore for being located at flange center, flange circle circumferential surface is machined with ventilation annular groove,
It is equipped with the ventilating shaft (6) cooperated with expansion block (3) inclined-plane in the centre bore of the flange center, is equipped with pipe in the ventilating shaft (6)
Road, the gas nozzle (7) on the outside of pipeline and circular hole in the internal ventilation pipe of the expansion block (3), ventilating shaft (6) are sequentially communicated.
2. a kind of pipeline group welding equipment back-pressure protection tool according to claim 1, it is characterised in that: on the expansion block (3)
Equipped with raised (11), one side of the protrusion (11) backwards to ventilating shaft (6) is inclined-plane, is machined in the middle part of the connecting plate (4) logical
Hole, ventilating shaft (6) other end, which is equipped with, to break off relations (5), and described break off relations (5) are equipped with the wedge shape with raised (11) ramp cooperation
Portion (12), described (5) sliding in the through-hole of connecting plate (4) of breaking off relations.
3. a kind of pipeline group welding equipment back-pressure protection tool according to claim 2, it is characterised in that: the ventilating shaft (6)
It is to be fixedly connected or be rotatablely connected with unhook (5).
4. a kind of pipeline group welding equipment back-pressure protection tool according to claim 1, it is characterised in that: described device further includes
Clamp nut (10), the clamp nut (10) are threadedly coupled with ventilating shaft (6).
5. a kind of pipeline group welding equipment back-pressure protection tool according to claim 1, it is characterised in that: the pressing plate (1) and
Flat key (8) are equipped between the connecting plate (4).
6. a kind of pipeline group welding equipment back-pressure protection tool according to claim 1, it is characterised in that: on the expansion block (3)
It is machined with handle hole (13), the handle hole (13) is equipped with sealing ring (2).
7. a kind of pipeline group welding equipment back-pressure protection tool according to claim 1, it is characterised in that: the expansion block (3) is 4
It is a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910315393.8A CN109986245A (en) | 2019-04-18 | 2019-04-18 | A kind of pipeline group welding equipment back-pressure protection tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910315393.8A CN109986245A (en) | 2019-04-18 | 2019-04-18 | A kind of pipeline group welding equipment back-pressure protection tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109986245A true CN109986245A (en) | 2019-07-09 |
Family
ID=67134116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910315393.8A Pending CN109986245A (en) | 2019-04-18 | 2019-04-18 | A kind of pipeline group welding equipment back-pressure protection tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109986245A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113894493A (en) * | 2021-10-21 | 2022-01-07 | 沈阳汇博热能设备有限公司 | Expansion device for long circular expansion joint ring weld joint lap joint |
| CN114871676A (en) * | 2022-06-13 | 2022-08-09 | 中国航发常州兰翔机械有限责任公司 | Welding fixture for mounting seat on wall surface of combustion chamber casing and welding deformation control method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5538173A (en) * | 1995-01-10 | 1996-07-23 | Hummel; Jon C. | Expandable tool for holding aligning pipes to be welded |
| JP2006075870A (en) * | 2004-09-09 | 2006-03-23 | Ishikawajima Harima Heavy Ind Co Ltd | Aligning mechanism and automatic pipe end welding apparatus |
| CN101323067A (en) * | 2008-07-22 | 2008-12-17 | 广州广船国际股份有限公司 | Pipe fitting butt welding protecting method and apparatus |
| CN203592240U (en) * | 2013-09-23 | 2014-05-14 | 北京航天新风机械设备有限责任公司 | Thin-wall cylinder section girth welding device |
| CN104148851A (en) * | 2014-07-24 | 2014-11-19 | 贵州黎阳航空动力有限公司 | Seamless tensioning welding jig used for welding circumferential welds of thin-wall barrel |
| CN105522266A (en) * | 2016-02-02 | 2016-04-27 | 云南昆船第一机械有限公司 | Butt joint circular seam reverse side gas shielding device for barrel fusion welding |
| CN106424801A (en) * | 2016-11-30 | 2017-02-22 | 武汉泛洲中越合金有限公司 | Bearing bush partition tool fixture |
-
2019
- 2019-04-18 CN CN201910315393.8A patent/CN109986245A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5538173A (en) * | 1995-01-10 | 1996-07-23 | Hummel; Jon C. | Expandable tool for holding aligning pipes to be welded |
| JP2006075870A (en) * | 2004-09-09 | 2006-03-23 | Ishikawajima Harima Heavy Ind Co Ltd | Aligning mechanism and automatic pipe end welding apparatus |
| CN101323067A (en) * | 2008-07-22 | 2008-12-17 | 广州广船国际股份有限公司 | Pipe fitting butt welding protecting method and apparatus |
| CN203592240U (en) * | 2013-09-23 | 2014-05-14 | 北京航天新风机械设备有限责任公司 | Thin-wall cylinder section girth welding device |
| CN104148851A (en) * | 2014-07-24 | 2014-11-19 | 贵州黎阳航空动力有限公司 | Seamless tensioning welding jig used for welding circumferential welds of thin-wall barrel |
| CN105522266A (en) * | 2016-02-02 | 2016-04-27 | 云南昆船第一机械有限公司 | Butt joint circular seam reverse side gas shielding device for barrel fusion welding |
| CN106424801A (en) * | 2016-11-30 | 2017-02-22 | 武汉泛洲中越合金有限公司 | Bearing bush partition tool fixture |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113894493A (en) * | 2021-10-21 | 2022-01-07 | 沈阳汇博热能设备有限公司 | Expansion device for long circular expansion joint ring weld joint lap joint |
| CN114871676A (en) * | 2022-06-13 | 2022-08-09 | 中国航发常州兰翔机械有限责任公司 | Welding fixture for mounting seat on wall surface of combustion chamber casing and welding deformation control method |
| CN114871676B (en) * | 2022-06-13 | 2024-09-17 | 中国航发常州兰翔机械有限责任公司 | Welding fixture for mounting seat on wall surface of combustion chamber casing and welding deformation control method |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190709 |
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| WD01 | Invention patent application deemed withdrawn after publication |