CN106670686B - Welding protective cover - Google Patents
Welding protective cover Download PDFInfo
- Publication number
- CN106670686B CN106670686B CN201710085344.0A CN201710085344A CN106670686B CN 106670686 B CN106670686 B CN 106670686B CN 201710085344 A CN201710085344 A CN 201710085344A CN 106670686 B CN106670686 B CN 106670686B
- Authority
- CN
- China
- Prior art keywords
- protective cover
- baffle
- snorkel
- welding
- welding protective
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a kind of welding protective covers; snorkel including shell and in shell; the shell includes side and the bottom surface with first row stomata; the snorkel contains second row stomata; the first row stomata forms deflation area, and the welding further includes the regulating mechanism for the leaving area size for adjusting the deflation area with protective cover.By setting regulating mechanism, the outlet area of bottom surface can be adjusted according to the area of weld seam high-temperature region, the dosage of saving and protection gas while being adequately protected weld seam high-temperature region.
Description
Technical field
The present invention relates to welding technology field more particularly to a kind of welding protective covers.
Background technology
Chemical property is more active at high temperature for titanium alloy, easily generates gap with element reactions such as oxygen, nitrogen, hydrogen, carbon, iron
Solid solution makes weldquality not up to standard, so other than protecting welding pool, it is also necessary to in the weld seam at welding pool rear portion
300 DEG C or more of weld seam high-temperature region is tightly protected, this is mainly completed by the tail part protection cover being connect with welding gun.It is existing
Protective cover generally includes shell of the bottom surface with gas vent and the snorkel in shell, and protection gas passes sequentially through snorkel
It is moved with after the gas vent of outer casing bottom towards weld seam high-temperature region, so as to squeeze out the air in weld seam high-temperature region, reaches protection
Effect.Since the outlet area of enclosure bottom is fixed, so the weld seam high-temperature region area of protective cover energy covering protection is also
It is fixed；However in actual production, due to the difference of wlding thickness, welding machine output power also can be different, 300 DEG C of weld seam or more
High-temperature heating area area also differs.Therefore, when the protected area of protective cover is less than weld seam high-temperature heating area, high-temperature heating area
The marginal position in domain can generate interstitial solid solution due to protective gas does not cover well, show the mechanical performance of final titanium alloy
Writing reduces.When the protected area of protective cover is more than weld seam high-temperature heating area, a large amount of protective gas costly can be caused
It is wasted, is unfavorable for enterprise's production economy benefit.
In addition, existing protective cover is all directly to spray protective gas towards weld seam from the bottom surface of protective cover, in order to keep
Stable gas pressure usually requires to maintain a certain distance between protective cover bottom surface and weld seam, but causes gas needs is protected to exist
It moves a distance in open atmospheric environment to remake for weld seam high-temperature region, so that protecting air exhaustion, it is easily lost to
By Dilution air in open atmospheric environment, and or with air effect formed turbulent flow, this prevent protect gas from giving full play to
The effect of protection, protection gas dosage are obviously improved.
Invention content
Based on above-mentioned the deficiencies in the prior art, it is a primary object of the present invention to provide a kind of welding protective cover, with solution
The problem of certainly the outlet area of protective cover is unadjustable in the prior art, protection gas is not efficiently utilized.
Technical solution is that welding protective cover including shell and is located at used by the present invention solves above-mentioned technical problem
Snorkel in shell, the shell includes side and the bottom surface with first row stomata, the snorkel contain second exhaust
Hole, the first row stomata form deflation area, and the welding further includes the leaving area size for adjusting the deflation area with protective cover
Regulating mechanism.By setting regulating mechanism, the outlet area of bottom surface can be adjusted according to the area of weld seam high-temperature region, makes weldering
The dosage of saving and protection gas while seam high-temperature region is adequately protected.
As being further improved for above-mentioned welding protective cover, the regulating mechanism include positioned at bottom surface upper surface and/
Or lower surface can be along the baffle axially or radially moved of the snorkel；Due to the use of when bottom surface ventilative face usually with weldering
It stitches and is symmetric for symmetry axis so that the protection gas of weld seam high-temperature region everywhere is uniformly distributed, it is therefore preferable that making the baffle edge
The axial movement of snorkel, such benefit are can directly to be used after baffle has adjusted the leaving area size of deflation area,
It avoids further adjusting the relative position between protective cover and welding gun.It is equipped with and leads between the baffle and corresponding side or bottom surface
To device, its role is to be convenient for baffle that relative motion occurs with bottom surface.Limitation baffle is equipped between the baffle and bottom surface to move
First limits device of dynamic distance；The baffle is equipped with the second limits device of limitation baffle displacement distance.First limitation dress
Putting with the effect of the second limits device is limited for the movement of baffle, and anti-baffle plate is detached from shell.
As being further improved for above-mentioned welding protective cover, the guider includes being set on baffle and corresponding side
Or the be mutually matched first protrusion and guide rail of the junction of bottom surface, when guide rail is set on baffle, the first protrusion is set on side
On, conversely, when guide rail is set on side, the first protrusion is then set on baffle.First limits device includes being set on baffle
With the be mutually matched second protrusion and groove of the junction of bottom surface, when groove is set on baffle, the second protrusion is set on bottom surface
On, conversely, when groove is set on bottom surface, the second protrusion is then set on baffle；It is preferred that the second protrusion is made to be set on bottom surface, at this time
More first row stomatas on bottom surface can be set, increase protecting effect；In addition, the first limits device can also anti-baffle plate shifting
Left and right offset occurs when dynamic and hinders the first protrusion and the relative motion of guide rail.Second limits device is positioned at the upper of baffle
Surface and/or the third protrusion of lower surface, when third protrusion moves to case surface, you can limit the further fortune of baffle
It is dynamic；The shape and size of third protrusion can be arranged as required to, and third protrusion can be made to be used as pushing hands, convenient for manually pushing
Baffle.
As being further improved for above-mentioned welding protective cover, the apron for being arranged on bottom periphery, the apron are further included
Material a semienclosed welding inertia protection gas shielded air cushion is formed for fire proofing material, and in apron.Pass through setting half
It is enclosed welding inertia protection gas shielded air cushion so that protective cover spray protection gas can in semienclosed apron with weldering
Material acts on forming an air cushion being made of welding inertia protection gas, and inertia protection gas is stitched in semi-enclosed environment by apron
Gap is a small amount of and is uniaxially slowly overflowed into air, and need to only inject a small amount of protection gas can maintain the stable gas pressure of air cushion, in this way
Significantly improve protecting effect.
As being further improved for above-mentioned welding protective cover, the fire proofing material is flameproof fabric.Flameproof fabric is more soft
Property fire proofing material, apron can preferably be bonded wlding made of flameproof fabric, and when the pressure of apron internal protection air cushion
When power is higher, it is possible to prop up apron edge to form gap, protection gas is made slowly to be overflowed along gap, reach the air pressure in apron
To dynamic equilibrium, protecting effect that is good and stablizing is formed.Wherein, flameproof fabric may be used Silicone Rubber Coated glass fabric,
Basalt fibre flameproof fabric, acrylic fibers cotton fiber flameproof fabric, meta-aramid flameproof fabric, blue glass flameproof fabric, aluminium foil flameproof fabric or
Ceramic fibre flameproof fabric.
As being further improved for above-mentioned welding protective cover, the air-flow further included between snorkel and bottom surface accelerates
Device.By setting flow accelerator, the rate of outflow of protection gas can be obviously improved, it can be in the usage amount for reducing protection gas
While keep preferable protecting effect.
As being further improved for above-mentioned welding protective cover, the flow accelerator is the gas equipped with third gas vent
Flowing plate；By setting airflow plate, it can make that the protection qi leel cloth flowed out from the first outer casing bottom is more uniform, and protecting effect is more
It is good.It is " V " type that the upper opening area of the third gas vent, which is more than lower openings area and/or the cross section of the airflow plate,
And it is opening down, above-mentioned setting can increase the turbulence effects of protection gas inside the shell, so as to be obviously improved the stream of protection gas
Go out speed, device is simple and protecting effect is obviously improved.
As being further improved for above-mentioned welding protective cover, the second row stomata is set on the lower half of the snorkel
It is in charge of on wall.Different from 360 ° of full axial apertures of the snorkel of other protective covers, the snorkel of protective cover of the invention only exists
Cross-sectional horizontal can be improved when the input phase is with protection air-flow amount and protect air pressure strong in snorkel, make gas with lower portion trepanning
Body has bigger flow velocity, and the protection gas of ejection is made preferably to concentrate on weld seam high-temperature region, while protecting effect is improved
About protect gas.
As being further improved for above-mentioned welding protective cover, the attachment device for adjusting snorkel mounting height is further included.
Using the attachment device for the mounting height for having the function of to adjust snorkel, the move distance of protection gas inside the shell can be adjusted,
It is accordingly the flow velocity of adjustable protective gas.In addition the installation site of flow accelerator can also be adjusted, to adjust protection gas
Turbulent extent inside the shell.
As being further improved for above-mentioned welding protective cover, the attachment device include the lantern ring that is socketed with snorkel and
Fixed link equipped with multiple mounting holes.Accordingly, shell be equipped with attachment device for mounting hole, be using bolt assembly
It can make fixed link and cage connection, so as to fixed snorkel.
The present invention is described further with reference to the accompanying drawings and detailed description.The additional aspect of the present invention and excellent
Point will be set forth in part in the description, and partly will become apparent from the description below or by practice of the invention
It solves.
Description of the drawings
The attached drawing for forming the part of the application is used to provide further understanding of the present invention, specific implementation of the invention
Mode, illustrative embodiments and their description do not constitute improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the structure diagram of the welding protective cover of embodiment 1.
Fig. 2 is the partial sectional view of the welding protective cover of embodiment 1.
Fig. 3 is the structure diagram of the bottom surface of embodiment 1.
Fig. 4 is the structure diagram after the putting upside down of baffle of embodiment 1.
Fig. 5 is the structure diagram of the airflow plate of embodiment 1.
Fig. 6 is the structure diagram of the snorkel of embodiment 1.
Fig. 7 is the structure diagram of the welding protective cover of embodiment 2.
Fig. 8 is the partial sectional view of the welding protective cover of embodiment 2.
Fig. 9 is the structure diagram after the putting upside down of bottom surface of embodiment 2.
Figure 10 is the structure diagram of the baffle of embodiment 2.
Figure 11 is the structure diagram after the putting upside down of baffle of embodiment 3.
Figure 12 is the structure diagram after the putting upside down of bottom surface of embodiment 4.
Figure 13 is the structure diagram after the putting upside down of bottom surface of embodiment 5.
Figure 14 is the structure diagram of the baffle of embodiment 5.
Specific embodiment
It should be noted that in the absence of conflict, specific embodiment, embodiment in the application and therein
Feature can be combined with each other.It lets us now refer to the figures and combines the following contents the present invention will be described in detail.
In order to which those skilled in the art is made to be better understood from the present invention program, below in conjunction with specific embodiment party of the present invention
Attached drawing in formula, embodiment carries out the technical solution in the specific embodiment of the invention, embodiment clear, complete description,
Obviously, described embodiment is only the embodiment of a branch of the invention, instead of all the embodiments.Based in the present invention
Specific embodiment, embodiment, what those of ordinary skill in the art were obtained under the premise of creative work is not made
Every other embodiment, embodiment should all belong to the scope of protection of the invention.
Embodiment 1
Welding protective cover as shown in figures 1 to 6, including shell of the shape for cuboid and the snorkel in shell
2, the shell includes bottom surface 11, leading flank 12, trailing flank 13, left side 14 and right side 15；The bottom surface 11 is equipped with first
Gas vent 100, the first row stomata 100 form deflation area, and the upper opening area of the first row stomata 100 is more than lower part
Opening area；The right side 15 is equipped with the through-hole passed through for snorkel 2, the both ends of the snorkel 2 respectively with left side
14 and right side 15 connect；The snorkel 2 is equipped with second row stomata 200, and the second row stomata 200 is only set on described logical
On the lower half portion tube wall of tracheae 2.
Further include the regulating mechanism for the leaving area size for adjusting the deflation area.The regulating mechanism includes being located at bottom surface
11 upper surface can be along the baffle 3 of the axial movement of the snorkel 2.The both ends of the baffle 3 respectively with leading flank 12 and
Guider is equipped between trailing flank 13, the guider is included set on the first protrusion 41 of 3 both sides of baffle and set on front side
On face 12 and trailing flank 13 with the described first raised 41 matched guide rails 42.Limitation is equipped between the baffle 3 and bottom surface 11
First limits device of 3 displacement distance of baffle, first limits device include the second protrusion 51 being set on 3 lower surface of baffle
With set on 11 upper surface of bottom surface and the described second raised 51 matched grooves 52.The baffle 3 is equipped with limitation baffle 3 and moves
Second limits device of distance, second limits device are the third protrusion 31 positioned at 3 upper surface end of baffle.Described first
Protrusion 41 is bar shaped, and the second protrusion 51 is cylinder, and the third protrusion 31 is bar shaped.
The apron 7 being connect with four sides is further included, the material of the apron 7 is flameproof fabric, and one is formed in apron 7
Semienclosed welding inertia protection gas shielded air cushion.The upper end of the apron 7 be equipped with bar shaped bar 71, the flameproof fabric with it is described
Bar shaped bar 71 is bonded；The bar shaped bar 71 is the band steel equipped with mounting hole, and the bar shaped bar 71 and the bottom of four sides pass through
Bolt assembly 9 connects.
Further include the flow accelerator between snorkel 2 and bottom surface 11.The flow accelerator is equipped with the
The airflow plate 6 of three gas vents 300；The upper opening area of the third gas vent 300 is more than lower openings area and the gas
The cross section of flowing plate 6 is " V " type and opening down.Consolidating equipped with multiple mounting holes is respectively connected at the both ends of the airflow plate 6
Fixed pole 8, the fixed link 8 are connect respectively with left side 14 and right side 15 by bolt assembly 9.
Further include the attachment device for adjusting 2 mounting height of snorkel.The attachment device includes the set being socketed with snorkel 2
Ring 81 and the fixed link 8 equipped with multiple mounting holes, the fixed link 8 connect to make to lead to by bolt assembly 9 with left side 14
Tracheae 2 is fixed.
Embodiment 2
Compared with Example 1, the welding of the present embodiment has following difference with protective cover：As is seen in figs 7-10, the gear
The lower surface that plate 3 is located at bottom surface 11 simultaneously can be along the axial movement of the snorkel 2.First limits device includes being set on baffle
Groove 52 on 3 upper surfaces and set on 11 lower surface of bottom surface and 52 matched second protrusion 51 of groove.
Embodiment 3
Compared with Example 1, the welding of the present embodiment has following difference with protective cover：As shown in figure 11, the guide rail
42 are set on the both sides of the baffle 3, are set on leading flank 12 and trailing flank 13 with 42 matched first protrusion 41 of guide rail.
Embodiment 4
Compared with Example 1, the welding of the present embodiment has following difference with protective cover：As shown in figure 12, the apron 7
(not shown) is connect with the lower surface of the bottom surface 11, and the connecting rod 71 of the flameproof fabric upper end is the angle with multiple mounting holes
Steel, the angle steel are connect with the lower surface of bottom surface 11 by bolt assembly 9.
Embodiment 5
Compared with Example 2, the welding of the present embodiment has following difference with protective cover：As illustrated in figs. 13-14, it is described to lead
It is set between the baffle 3 and bottom surface 11 to mechanism, first protrusion 41 is set on the upper surface both ends of the baffle 3, with institute
State the both ends that the first raised 41 matched guide rails 42 are set on the lower surface of the bottom surface 11.
Claims (9)
1. welding protective cover, the snorkel (2) including shell and in shell, the shell include side and with first
The bottom surface (11) of gas vent (100), the snorkel (2) contain second row stomata (200), it is characterised in that：The first row
Stomata (100) forms deflation area, and the welding further includes the adjusting machine for the leaving area size for adjusting the deflation area with protective cover
Structure；The regulating mechanism is including being located at the upper surface of bottom surface (11) and/or being moved along the axial direction of the snorkel (2) for lower surface
Dynamic baffle (3)；The baffle (3) is with being equipped with guider between corresponding side or bottom surface (11)；The baffle (3) and bottom
First limits device of limitation baffle (3) displacement distance is equipped between face (11)；The baffle (3) is equipped with limitation baffle (3)
Second limits device of displacement distance.
2. welding protective cover as described in claim 1, it is characterised in that：The guider include be set on baffle (3) with
Be mutually matched first raised (41) of the junction of corresponding side or bottom surface (11) and guide rail (42)；The first limitation dress
Put be mutually matched second raised (51) of the junction including being set on baffle (3) and bottom surface (11) and groove (52)；Described
Two limits devices are the third protrusion (31) positioned at the upper surface of baffle (3) and/or lower surface.
3. welding protective cover as described in claim 1, it is characterised in that：Further include the apron for being arranged on bottom surface (11) periphery
(7), the material of the apron (7) is fire proofing material, and a semienclosed welding inertia protection gas is formed in apron (7) and is protected
Protect air cushion.
4. welding protective cover as claimed in claim 3, it is characterised in that：The fire proofing material is flameproof fabric.
5. welding protective cover as described in claim 1, it is characterised in that：It further includes positioned at snorkel (2) and bottom surface (11)
Between flow accelerator.
6. welding protective cover as claimed in claim 5, it is characterised in that：The flow accelerator is to be vented equipped with third
The airflow plate (6) in hole (300)；The upper opening area of the third gas vent (300) is more than lower openings area and/or described
The cross section of airflow plate (6) is " V " type and opening down.
7. welding protective cover as described in claim 1, it is characterised in that：The second row stomata (200) is set on described logical
On the lower half portion tube wall of tracheae (2).
8. welding protective cover as described in claim 1, it is characterised in that：It further includes and adjusts snorkel (2) mounting height
Attachment device.
9. welding protective cover as claimed in claim 8, it is characterised in that：The attachment device includes covering with snorkel (2)
The lantern ring (81) connect and the fixed link (8) equipped with multiple mounting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710085344.0A CN106670686B (en) | 2017-02-17 | 2017-02-17 | Welding protective cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710085344.0A CN106670686B (en) | 2017-02-17 | 2017-02-17 | Welding protective cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106670686A CN106670686A (en) | 2017-05-17 |
| CN106670686B true CN106670686B (en) | 2018-06-12 |
Family
ID=58861098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710085344.0A Expired - Fee Related CN106670686B (en) | 2017-02-17 | 2017-02-17 | Welding protective cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106670686B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107825009A (en) * | 2017-10-31 | 2018-03-23 | 中国核工业二三建设有限公司 | A kind of air inflation protecting device for welding of pipeline |
| CN108941908A (en) * | 2018-08-27 | 2018-12-07 | 常德高迈新能源科技有限公司 | The protection-gas welding apparatus of power battery module side plate and welding equipment with it |
| CN110030646A (en) * | 2019-05-10 | 2019-07-19 | 北京仰生恒泰科技有限责任公司 | A kind of system adjusting breathing microenvironment |
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|---|---|---|---|---|
| CN101422853A (en) * | 2007-11-02 | 2009-05-06 | 中国船舶重工集团公司第七二五研究所 | Local air protection cage during fusion welding titanium alloy |
| CN204122906U (en) * | 2014-08-20 | 2015-01-28 | 西南石油大学 | A kind of backing welding sealing run oxygen-proof protecting device |
| CN204248262U (en) * | 2014-12-02 | 2015-04-08 | 山东金润德不锈钢管有限公司 | A kind of for stainless steel welded gas shielded device |
| CN204621401U (en) * | 2015-04-21 | 2015-09-09 | 中国十七冶集团有限公司 | A kind of inert gas-shielded arc welding is supplied gas syringe |
| CN206550527U (en) * | 2017-02-17 | 2017-10-13 | 西南交通大学 | Welding protective cover |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6103758B2 (en) * | 2013-03-28 | 2017-03-29 | 日新製鋼株式会社 | Welding method of ERW steel pipe using seal box |
-
2017
- 2017-02-17 CN CN201710085344.0A patent/CN106670686B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101422853A (en) * | 2007-11-02 | 2009-05-06 | 中国船舶重工集团公司第七二五研究所 | Local air protection cage during fusion welding titanium alloy |
| CN204122906U (en) * | 2014-08-20 | 2015-01-28 | 西南石油大学 | A kind of backing welding sealing run oxygen-proof protecting device |
| CN204248262U (en) * | 2014-12-02 | 2015-04-08 | 山东金润德不锈钢管有限公司 | A kind of for stainless steel welded gas shielded device |
| CN204621401U (en) * | 2015-04-21 | 2015-09-09 | 中国十七冶集团有限公司 | A kind of inert gas-shielded arc welding is supplied gas syringe |
| CN206550527U (en) * | 2017-02-17 | 2017-10-13 | 西南交通大学 | Welding protective cover |
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| Publication number | Publication date |
|---|---|
| CN106670686A (en) | 2017-05-17 |
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