CN207942087U - Composition backing device - Google Patents
Composition backing device Download PDFInfo
- Publication number
- CN207942087U CN207942087U CN201820132767.3U CN201820132767U CN207942087U CN 207942087 U CN207942087 U CN 207942087U CN 201820132767 U CN201820132767 U CN 201820132767U CN 207942087 U CN207942087 U CN 207942087U
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- China
- Prior art keywords
- liner part
- composition backing
- backing device
- cooling tube
- liner
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Abstract
This application provides a kind of composition backing devices.The composition backing device includes liner part and cooling tube.Wherein, it pads and is formed with working face at the top of part, working face is for padding workpiece to be welded.Cooling tube setting gives liner part cooling on liner part, for leading to coolant liquid.Using the technical solution of the utility model, by liner part pad at the back side of workpiece to be welded, when the front of workpiece to be welded is welded, liner part assists the back side of workpiece to be welded to form weld seam.During the welding process, due to being provided with cooling tube on liner part, the coolant liquid that circulates in cooling tube can prevent liner part to be burnt influence weldquality, improve welding quality to liner part cooling.
Description
Technical field
The utility model is related to technical fields of mechanical processing, in particular to a kind of composition backing device.
Background technology
Shell is pressure vessel main pressurized element, and longitudinal seam welding quality requirement is high, it is necessary to by NB/T47013 provide into
Row radiographic inspection, II grade of qualification.Longitudinal seam welding method has two kinds of submerged-arc welding, gas shielded arc welding.Submerged welding process needs two-sided welding,
To ensure welding quality, after single-sided welding, manual gouge back chipping, polishing are needed, the pollutions such as caused splashing, dust, noise, seriously
Environment is influenced, production efficiency is low.Gas shielded arc welding, shell butting grooves directly weld and are easy burn-through, welding is caused to be interrupted,
Seriously affect welding quality.
To realize single face welding and double face shaping, composition backing need to be increased in shell back of weld.However, existing composition backing
During use, it is easy to be burnt, and then is easy to influence the quality of weld seam.
Utility model content
The utility model embodiment provides a kind of composition backing device, to solve existing for composition backing in the prior art
The technical issues of being easy to be burnt influence weldquality.
The application embodiment provides a kind of composition backing device, including：Part is padded, pads and is formed with work at the top of part
Make face, working face is for padding workpiece to be welded；Cooling tube, setting give liner part cooling on liner part, for leading to coolant liquid.
In one embodiment, cooling tube is arranged in the bottom of liner part.
In one embodiment, the bottom for padding part is formed with mounting groove, and cooling tube is mounted in mounting groove.
In one embodiment, cooling tube is multiple, and correspondingly mounting groove is also multiple.
In one embodiment, welding groove is formed on working face, welding groove is used to help workpiece to be welded
The appearance of weld at the back side.
In one embodiment, welding groove is located at the middle part of working face.
In one embodiment, the both sides of the welding groove on working face form the evacuation face being downwardly inclined.
In one embodiment, composition backing device further includes floor piece, and liner part is mounted in floor piece, cooling tube
Between the bottom and the top of floor piece of liner part.
In one embodiment, the both ends of floor piece are respectively arranged with positioning plate, and liner part is loaded on two positioning plates
Between, the through-hole being connected with cooling tube is offered on positioning plate.
In one embodiment, locating piece is additionally provided in floor piece, locating piece is loaded on the both sides of liner part.
In one embodiment, the side for padding the both sides of part forms positioning inclined-plane, and locating piece cooperation positioning inclined-plane will
Liner part is located in floor piece.
In one embodiment, it positions and offers location hole on inclined-plane, locating piece is positioned with location hole cooperation.
In the above-described embodiments, by liner part pad at the back side of workpiece to be welded, when the front of workpiece to be welded is welded
When connecing, liner part assists the back side of workpiece to be welded to form weld seam.During the welding process, due to being provided with cooling on liner part
It manages, circulation coolant liquid can prevent liner part to be burnt influence weldquality, improve weldering to liner part cooling in cooling tube
Connect quality.
Description of the drawings
The attached drawing constituted part of this application is used to provide a further understanding of the present invention, the utility model
Illustrative embodiments and their description are not constituted improper limits to the present invention for explaining the utility model.In attached drawing
In：
Fig. 1 is the main structure diagram according to the composition backing device of the utility model embodiment；
Fig. 2 is the overlooking structure diagram of the composition backing device of Fig. 1；
Fig. 3 is the main structure diagram of the liner part of the composition backing device of Fig. 1
Fig. 4 is the overlooking structure diagram of the liner part of Fig. 3.
Wherein, above-mentioned attached drawing includes the following drawings label：
10, part is padded；11, working face；111, groove is welded；12, mounting groove；13, inclined-plane is positioned；14, face is avoided；131、
Location hole；20, cooling tube；30, floor piece；31, positioning plate；311, through-hole；32, locating piece.
Specific implementation mode
To make the purpose of this utility model, technical solution and advantage be more clearly understood, with reference to embodiment and attached
Figure, is described in further details the utility model.Here, the exemplary embodiment and its explanation of the utility model are for solving
The utility model is released, but is not intended to limit the scope of the present invention.
Fig. 1, Fig. 2 and Fig. 4 show the embodiment of the composition backing device of the utility model, which includes
Pad part 10 and cooling tube 20.Wherein, the top of liner part 10 is formed with working face 11, and working face 11 is for padding work to be welded
Part.The setting of cooling tube 20 cools down for leading to coolant liquid to liner part 10 on liner part 10.
Using the technical solution of the utility model, by the liner pad of part 10 at the back side of workpiece to be welded, when workpiece to be welded
Front when being welded, liner part 10 assists the back side of workpiece to be welded to form weld seam.During the welding process, due to liner
Cooling tube 20 is provided on part 10, circulation coolant liquid can cool down to liner part 10 in cooling tube 20, prevent liner 10 quilt of part
Scaling loss influences weldquality, improves welding quality.
Optionally, in the technical solution of the utility model, liner part 10 is process by copper material, reusable, and
It avoids Liner Ferrule and carries out the problem of welding pool influences welding quality.
As shown in Figure 2 and Figure 4, as an alternative embodiment, cooling tube 20 is arranged in the bottom of liner part 10.This
Sample assembles convenient for cooling tube 20 and liner part 10.As other optional embodiments, can also be processed on liner part 10
Go out mounting hole, cooling tube 20 is inserted into mounting hole, the difficulty of processing of which can be bigger, but is also that can implement.
In addition, directly liner part 10 on process with cooling tube 20 act on identical cooling duct be also it is feasible, which and
The mode that cooling tube 20 is provided on liner part 10 is mutually equivalent.
As a preferred embodiment, as shown in figure 4, be formed with mounting groove 12 in the bottom of liner part 10, it is cooling
Pipe 20 is mounted in mounting groove 12.By processing mounting groove 12 in the bottom of liner part 10, the installation for cooling tube 20 of being more convenient for.
It can also increase cooling tube 20 by mounting groove 12 and pad the heat exchange area of part 10, improve heat exchange efficiency, effectively reduce liner
The temperature of part 10.Optionally, as shown in figure 4, in the technical solution of the present embodiment, mounting groove 12 is 4, is correspondingly cooled down
Pipe 20 is also 4.As other optional embodiments, cooling tube 20 may be more, correspondingly mounting groove 12
Also it is more.Optionally, mounting groove 12 is semi-circular groove.
As shown in Figure 2 and Figure 4, as a preferred embodiment, in the technical solution of the present embodiment, working face 11
On be formed with welding groove 111, welding groove 111 be used to help workpiece to be welded the back side appearance of weld.When in use, when
Workpiece to be welded front carry out weld seam welding when, welding fluid can be flowed into along weld seam welding groove 111, weld groove 111
So that welding fluid is fused in the root of weld seam, it is beneficial to ensure welding quality, improves the reliability of welding workpiece.
As an alternative embodiment, welding groove 111 is located at the middle part of working face 11.More preferably, it works
The both sides of welding groove 111 on face 11 form the evacuation face 14 being downwardly inclined, and can make the place for welding groove 111 in this way
Region is opposite to protrude, so that welding groove 111 is preferably docked with the region on weld seam periphery, ensures the quality of welding.
As depicted in figs. 1 and 2, in the technical solution of the utility model, composition backing device further includes floor piece 30, lining
Mat piece 10 is mounted in floor piece 30, and cooling tube 20 is mounted between the bottom and the top of floor piece 30 of liner part 10.It will lining
Mat piece 10 is arranged in floor piece 30, can allow the firmly fixed-bearing part 10 of floor piece 30, it is ensured that is padded during welding
Part 10 does not shake.
For the ease of padding the fixed installation of part 10, as depicted in figs. 1 and 2, as an alternative embodiment, bottom plate
The both ends of part 30 are respectively arranged with positioning plate 31, and liner part 10 is loaded between two positioning plates 31.It is offered on positioning plate 31
The through-hole is connected by the through-hole 311 being connected with cooling tube 20, when use with coolant liquid circuit, and coolant liquid is allowed by through-hole 311
It circulates in cooling tube 20, to cool down to liner part 10.
As shown in Figure 1, as a preferred embodiment, being additionally provided with locating piece 32, locating piece in floor piece 30
32 are loaded on the both sides of liner part 10.Liner part 10 can be more firmly mounted in floor piece 30 by locating piece 32
On, liner part 10 can be fixed, be compressed, leveling by operating locating piece 32 when use.
As an alternative embodiment, as shown in Figure 3 and Figure 4, the side for padding the both sides of part 10 forms locating latch
Face 13, the cooperation of locating piece 32 positioning inclined-plane 13 are located in part 10 is padded in floor piece 30.It can be straight by the positioning inclined-plane 13
It connects from the both sides of liner part 10 and fixation is realized to liner part 10, reduce interference of the locating piece 32 for 10 top of liner part.Such as Fig. 4
Shown, padding the positioning inclined-plane 13 of the both sides of part 10 can allow liner part 10 to form a trapezium structure so that liner part 10 is more
It is easy to be fixed.As a kind of more preferably embodiment, as shown in figure 4, offering location hole on positioning inclined-plane 13
131, locating piece 32 is positioned with the cooperation of location hole 131.Locating piece 32 can be with liner part 10 more firmly by the location hole 131
Cooperation, it is preferably fixed to liner part 10 to realize.
It should be noted that the technical solution of the utility model is particularly suitable for vessel shell longitudinal seam welding.Pass through
The technical solution forces to be molded to back side of shell weld seam, and appearance of weld is beautiful, and stable quality is reliable.Realize vessel shell
Longitudinal joint gas shielded arc welding, single face welding and double face shaping.
Specifically, application mode is as follows：
1, material：Vessel shell material is low-alloy steel Q345R, and the liner part 10 of selection should not be with case material class
Seemingly, it avoids molten bath from mutually being melted with liner part, therefore pads 10 material selection copper coin of part, thickness 20mm or so.
2, part structure is padded：Inside housings, liner part 10 and longitudinal joint is apart from as small as possible, convenient for weld seam for installation when welding
Bead formed on back, to adapt to different housings, the diameter width of liner part 10 is approximately less than 100mm.In use, liner part 10 is mounted on
Floor piece 30 is convenient for the support pressure container casing longitudinal joint back side.
3, the design of groove is welded：60 ° of vessel shell butt welding groove, gap 0.5-3mm.Pad the weldering of part 10
Welding pool will reliably be held by connecing groove, and allow shell installation error, and welding groove must have certain width.It welds at the back side
Seam reinforcement must satisfy national standard, not above 1.5mm, be required to welding gash depth.By calculating and testing, weld
For groove processing among 10 upper surface of liner part, welding channel radii, width, depth must be with back of weld forming height phases one
It causes.
4, cooling：The gas shielded arc welding of vessel shell longitudinal joint, welding current 200A-300A, voltage 22V-32V, weldering
Speed 250mm/min is met, heat input is larger.To avoid liner 10 metal of part from entering molten bath, weldquality is improved, liner is extended
10 service life of part is arranged 4 cooling tubes 20 in 10 lower surface of liner part, uses circulating water to pad part in welding process
10。
5, fixed, leveling is installed：It pads part 10 to be mounted in floor piece 30, with the positioning with liner 10 side equal angular of part
Block 32 is fixed, is compressed, leveling.
This structure sealing run U.S. that vessel shell longitudinal joint in vessel shell longitudinal seam welding equipment, can be made
It sees, can get superior in quality weld seam, 99% or more radiographic inspection qualification rate.Also, the technical solution is used, pressure is directed to
Container casing longitudinal seam welding realizes following effect：
1, vessel shell longitudinal joint gas shielded arc welding replaces submerged-arc welding, improves operating environment, reduces labor intensity, real
Vessel shell longitudinal joint single face welding and double face shaping is showed, production efficiency improves 1 times；
2,10 service life of liner part of welding was up to 3 years or more.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, the utility model embodiment can have various modifications and variations.All spirit in the utility model
Within principle, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (12)
1. a kind of composition backing device, which is characterized in that including：
Part (10) is padded, working face (11) is formed at the top of the liner part (10), the working face (11) is waited for for padding
Welding workpiece；
Cooling tube (20) is arranged on the liner part (10), cools down to the liner part (10) for leading to coolant liquid.
2. composition backing device according to claim 1, which is characterized in that the cooling tube (20) is arranged in the liner
The bottom of part (10).
3. composition backing device according to claim 2, which is characterized in that the bottom of the liner part (10) is formed with peace
Tankage (12), the cooling tube (20) are mounted in the mounting groove (12).
4. composition backing device according to claim 3, which is characterized in that the cooling tube (20) be it is multiple, it is corresponding
The ground mounting groove (12) is also multiple.
5. composition backing device according to claim 1, which is characterized in that be formed with welding ditch on the working face (11)
Slot (111), the welding groove (111) are used to help the appearance of weld at the back side of the workpiece to be welded.
6. composition backing device according to claim 5, which is characterized in that the welding groove (111) is located at the work
Make the middle part of face (11).
7. composition backing device according to claim 6, which is characterized in that the welding ditch on the working face (11)
The both sides of slot (111) form the evacuation face (14) being downwardly inclined.
8. composition backing device according to claim 2, which is characterized in that the composition backing device further includes floor piece
(30), the liner part (10) is mounted in the floor piece (30), and the cooling tube (20) is mounted on the liner part (10)
Bottom and the top of the floor piece (30) between.
9. composition backing device according to claim 8, which is characterized in that the both ends of the floor piece (30) are respectively set
There are positioning plate (31), the liner part (10) to be loaded between two positioning plates (31), opened up on the positioning plate (31)
There is the through-hole (311) being connected with the cooling tube (20).
10. composition backing device according to claim 8, which is characterized in that it is fixed to be additionally provided on the floor piece (30)
Position block (32), the locating piece (32) are loaded on the both sides of the liner part (10).
11. composition backing device according to claim 10, which is characterized in that the side of the both sides of the liner part (10)
Positioning inclined-plane (13) is formed, it is described that the locating piece (32) coordinates the positioning inclined-plane (13) to be located in the liner part (10)
In floor piece (30).
12. composition backing device according to claim 11, which is characterized in that it is fixed to be offered on the positioning inclined-plane (13)
Position hole (131), the locating piece (32) position with the location hole (131) cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820132767.3U CN207942087U (en) | 2018-01-25 | 2018-01-25 | Composition backing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820132767.3U CN207942087U (en) | 2018-01-25 | 2018-01-25 | Composition backing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207942087U true CN207942087U (en) | 2018-10-09 |
Family
ID=63702373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820132767.3U Active CN207942087U (en) | 2018-01-25 | 2018-01-25 | Composition backing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207942087U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108098121A (en) * | 2018-01-25 | 2018-06-01 | 珠海格力电器股份有限公司 | Composition backing device |
| CN109865966A (en) * | 2019-02-20 | 2019-06-11 | 武汉理工大学 | A kind of single welding brass cushion device with water cooling and back-protective and corresponding welding method |
| CN109909686A (en) * | 2019-01-30 | 2019-06-21 | 重庆欣雨压力容器制造有限责任公司 | A kind of longitudinal seam welding of barrel method |
-
2018
- 2018-01-25 CN CN201820132767.3U patent/CN207942087U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108098121A (en) * | 2018-01-25 | 2018-06-01 | 珠海格力电器股份有限公司 | Composition backing device |
| CN109909686A (en) * | 2019-01-30 | 2019-06-21 | 重庆欣雨压力容器制造有限责任公司 | A kind of longitudinal seam welding of barrel method |
| CN109865966A (en) * | 2019-02-20 | 2019-06-11 | 武汉理工大学 | A kind of single welding brass cushion device with water cooling and back-protective and corresponding welding method |
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