CN203843410U - Welding clamping tool of rail car flattop sealing chamber - Google Patents
Welding clamping tool of rail car flattop sealing chamber Download PDFInfo
- Publication number
- CN203843410U CN203843410U CN201420113980.1U CN201420113980U CN203843410U CN 203843410 U CN203843410 U CN 203843410U CN 201420113980 U CN201420113980 U CN 201420113980U CN 203843410 U CN203843410 U CN 203843410U
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- CN
- China
- Prior art keywords
- clamping plate
- clamping
- annular seal
- seal space
- flattop
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- 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 - Lifetime
Links
- 241001270131 Agaricus moelleri Species 0.000 title claims abstract description 20
- 238000003466 welding Methods 0.000 title abstract description 22
- 238000007789 sealing Methods 0.000 title abstract description 7
- 239000000463 material Substances 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 238000004378 air conditioning Methods 0.000 description 17
- 238000005516 engineering process Methods 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Laser Beam Processing (AREA)
Abstract
The utility model relates to the technical field of rail cars and specifically discloses a welding clamping tool of a rail car flattop sealing chamber. The welding clamping tool of the rail car flattop sealing chamber comprises a first clamping plate and a second clamping plate, the width of the second clamping plate is smaller than the width of the first clamping plate, the length of the second clamping plate is bigger than the width of the first clamping plate, a threaded rod is disposed on the second clamping plate, a through hole corresponding to threads of the second clamping plate is disposed in the first clamping plate, and the threaded rod of the second clamping plate can pass through the through hole of the first clamping plate and can be coordinated with a nut to realize mutual clamping of the first clamping plate and the second clamping plate. The clamping tool in the utility model can clamp an air conditioner flattop plate and the sealing chamber before welding and can ensure an overlapping interval between the air conditioner flattop plate and the sealing chamber in narrow space in order to satisfy requirements for laser welding.
Description
Technical field
The utility model relates to rail vehicle technical field, relates in particular to a kind of rail vehicle flat-top annular seal space weld clamp frock.
Background technology
Along with improving constantly of car body lightweight, the requirement such as anticorrosion, rail vehicle stainless steel car body is just progressively promoted the use of, and stainless steel car body mostly is without application car body, and car body presentation quality and commercialized degree are had relatively high expectations.Due to thermophysical property and the mechanical property of stainless steel material itself, arc welding distortion is larger, and therefore the resistance spot welding process of stainless steel car body employing is at present main, is aided with technology of arc welding.Resistance spot welding can effectively reduce the welding deformation of car body, but solder joint place exists obvious impression, and spot-welded structures car body air-tightness is poor.
Laser weld heat is concentrated, and welding deformation is less, and fusion penetration is easy to realize accurate control, welding quality stable, and can realize sequential welding and seal weld, improve seal and the integral rigidity of stainless steel car body structure, the novel car body welding procedure that has become rail vehicle industry and fall over each other research and development.Along with research and the through engineering approaches application of laser weld, laser welding technology has been applied on the large parts such as roof, underframe, side wall and headwall of vehicle body of railway vehicle at present, in the time carrying out vehicle top air conditioner flat-top annular seal space laser weld, easily there are the quality problems such as laser welded seam punctures, snaps and splashes, this also becomes the difficult point of laser weld application technology, how ensureing that at narrow space the gap of sheet material overlap joint meets the requirement of laser weld, can form again good airproof performance and weld seam attractive in appearance simultaneously becomes the emphasis problem of laser welding technology.
Utility model content
(1) technical problem that will solve
The purpose of this utility model is to provide a kind of rail vehicle flat-top annular seal space weld clamp frock, cannot realize at narrow space and ensures that the overlap joint gap of air-conditioning ceiling and annular seal space meets the problems such as laser weld requirement to overcome prior art.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of rail vehicle flat-top annular seal space weld clamp frock, comprise the first clamping plate and the second clamping plate, the width of described the second clamping plate is less than the width of described the first clamping plate, the length of described the second clamping plate is greater than the width of described the first clamping plate, described the second clamping plate are provided with threaded rod, described the first clamping plate are provided with the through hole corresponding with the threaded rod of described the second clamping plate, the threaded rod of described the second clamping plate can and coordinate with nut so that described the first clamping plate and the second clamping plate clamp mutually through the through hole of described the first clamping plate.
Preferably, described the second clamping plate are two, and described the first clamping plate are provided with two equally distributed through holes on its length direction.
Preferably, between described the first clamping plate and nut, be provided with pad.
Preferably, the material of described clamping tool is aluminium alloy.
(3) beneficial effect
Air-conditioning ceiling and annular seal space are being welded front clamp by rail vehicle flat-top annular seal space weld clamp frock of the present utility model, can ensure that the overlap joint gap of air-conditioning ceiling and annular seal space meets laser weld requirement at narrow space, be that spacing after the clamped frock of air-conditioning ceiling and annular seal space clamps is less than 0.2mm, effectively improved the quality of weld seam and the sealing of weld seam.
Brief description of the drawings
Fig. 1 is the front view of the rail vehicle flat-top annular seal space weld clamp frock of the utility model embodiment;
Fig. 2 is the side view of the rail vehicle flat-top annular seal space weld clamp frock of the utility model embodiment;
Fig. 3 is the welded seam schematic diagram of prior art hollow leveling top board and annular seal space;
Fig. 4 is the welded seam schematic diagram of the utility model embodiment hollow leveling top board and annular seal space.
In figure, 10: weld seam; 11: acnode is received in the starting the arc; 12: acnode is received in the starting the arc; 20: weld seam; 21: weld seam; 22: arcing point; 23: receive acnode; 31: the first clamping plate; 32: the second clamping plate; 33: threaded rod; 34: nut; 35: pad.
Detailed description of the invention
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for illustrating the utility model, but can not be used for limiting scope of the present utility model.
In description of the present utility model, it should be noted that, term " " center ", " longitudinally ", " laterally ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of instructions such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of device or the element of instruction or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " be only for describing object, and can not be interpreted as instruction or hint relative importance.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand the concrete meaning of above-mentioned term in the utility model.In addition,, in description of the present utility model, except as otherwise noted, the implication of " multiple " is two or more.
As Fig. 1, shown in 2, the rail vehicle flat-top annular seal space weld clamp frock of the present embodiment comprises: first clamping plate 31 and two the second clamping plate 32, two the second clamping plate 32 structures are identical and be rectangular slab, the center of the second clamping plate 32 is provided with perpendicular threaded rod 33, the first clamping plate are rectangular slab, its physical dimension is corresponding with the recess of weld (weld seam 20) inner side of air-conditioning ceiling and annular seal space, the first clamping plate 31 are provided with two and on its length direction, are uniformly distributed and the through hole corresponding with the threaded rod 33 of two the second clamping plate 32, the threaded rod 33 of the second clamping plate 32 can and coordinate with nut 34 so that the first clamping plate 31 and the second clamping plate 32 clamp mutually through the through hole of the first clamping plate 31, wherein, between the first clamping plate 31 and nut 34, can be provided with pad 35.
The width of the second clamping plate 32 is less than the width of the first clamping plate 31, the length of the second clamping plate 32 is greater than the width of the first clamping plate 31, like this, when the length direction of the second clamping plate 32 and the length direction of the first clamping plate 31 are when consistent, the first clamping plate 31 can withstand the recess of weld (weld seam 20) inner side of air-conditioning ceiling and annular seal space, the second clamping plate 32 can be through the opening of weld (weld seam 20) inner side of air-conditioning ceiling and annular seal space, in the time that the second clamping plate 32 are vertical to the length direction of length direction and the first clamping plate 31, after the first clamping plate 31 and the second clamping plate 32 being tightened by nut 34, the first clamping plate 31 and the second clamping plate 32 can clamp air-conditioning ceiling and annular seal space, and because the length of the second clamping plate 32 is greater than the width of the opening of weld (weld seam 20) inner side of air-conditioning ceiling and annular seal space, whole clamping tool can not be come off from described opening.After clamping finishes, only nut 34 need be turned, so that the second clamping plate 32 rotate, in the time that the length direction of the second clamping plate 32 is identical with the length direction of the first clamping plate 31, clamping tool can be pulled down.
The heat producing due to laser weld moment is larger, and described clamping tool adopts aluminum alloy materials to make, and adopts aluminium alloy can make the heat on welded workpiece surface disperse rapidly, not only light but also practical.
It is fastening that described clamping tool adopts threaded rod and nut to utilize ratchet spanner to carry out, and can ensure stable increase clamping pressure, and it can make the gap of air-conditioning ceiling and annular seal space be less than 0.2mm, to meet the requirement of laser weld to sheet material gap.
The structure of clamping tool of the present utility model can also be made suitable change and adjustment, as changes the quantity of the second clamping plate, changes the shape of the second clamping plate, changes the mode etc. that is fastenedly connected of the second clamping plate and the first clamping plate.
The method that the clamping tool of employing the present embodiment carries out the welding of rail vehicle flat-top annular seal space comprises the following steps:
S1. adopting air-conditioning ceiling and the thickness that the clamping tool described in embodiment is 2mm by thickness is that 2mm annular seal space clamps, and the gap after air-conditioning ceiling and annular seal space are clamped by described clamping tool is less than 0.2mm.
S2. from the straight line starting the arc to be welded (as the arcing point 22 in Fig. 4) of air-conditioning ceiling and annular seal space, start laser weld.
S3. the weld seam of air-conditioning ceiling and annular seal space is that the border weld seam that is grouped into of straight line portion and fillet part is (as the weld seam 20 in Fig. 4, its welding direction is the direction of arrow on weld seam 20), in the time that welding direction changes (while being welded to the intersection of weld seam straight line portion and fillet part), adopt the mode of round-corner transition to weld, the radius of described fillet is 20mm-25mm.
S4. welded behind a border, continued weld and pressed starting the arc place (as the arcing point 22 in Fig. 4) along welding track, received arc place (as the receipts acnode 23 in Fig. 4) receipts arc until be welded to, completed a border welding.
S5. use the same method again and carry out a border welding (its weld seam is as the weld seam 21 in Fig. 4) at the inner side spacing 5mm-10mm of above-mentioned border weld seam (as the weld seam 20 in Fig. 4).
Air-conditioning ceiling and annular seal space are being welded front clamp by rail vehicle flat-top annular seal space weld clamp frock of the present utility model, can ensure that the overlap joint gap of air-conditioning ceiling and annular seal space meets laser weld requirement at narrow space, be that spacing after the clamped frock of air-conditioning ceiling and annular seal space clamps is less than 0.2mm, effectively improved the quality of weld seam and the sealing of weld seam.
Embodiment of the present utility model provides for example with for the purpose of describing, and is not exhaustively or by the utility model to be limited to disclosed form.Many modifications and variations are apparent for the ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present utility model and practical application, thereby and makes those of ordinary skill in the art can understand the utility model design to be suitable for the various embodiment with various amendments of special-purpose.
Claims (4)
1. a rail vehicle flat-top annular seal space weld clamp frock, it is characterized in that, comprise the first clamping plate and the second clamping plate, the width of described the second clamping plate is less than the width of described the first clamping plate, the length of described the second clamping plate is greater than the width of described the first clamping plate, described the second clamping plate are provided with threaded rod, described the first clamping plate are provided with the through hole corresponding with the threaded rod of described the second clamping plate, and the threaded rod of described the second clamping plate can and coordinate with nut so that described the first clamping plate and the second clamping plate clamp mutually through the through hole of described the first clamping plate.
2. rail vehicle flat-top annular seal space weld clamp frock according to claim 1, is characterized in that, described the second clamping plate are two, and described the first clamping plate are provided with two equally distributed through holes on its length direction.
3. rail vehicle flat-top annular seal space weld clamp frock according to claim 2, is characterized in that, between described the first clamping plate and nut, is provided with pad.
4. according to the rail vehicle flat-top annular seal space weld clamp frock described in any one in claim 1-3, it is characterized in that, the material of described clamping tool is aluminium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420113980.1U CN203843410U (en) | 2014-03-13 | 2014-03-13 | Welding clamping tool of rail car flattop sealing chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420113980.1U CN203843410U (en) | 2014-03-13 | 2014-03-13 | Welding clamping tool of rail car flattop sealing chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203843410U true CN203843410U (en) | 2014-09-24 |
Family
ID=51556468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420113980.1U Expired - Lifetime CN203843410U (en) | 2014-03-13 | 2014-03-13 | Welding clamping tool of rail car flattop sealing chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203843410U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103878521A (en) * | 2014-03-13 | 2014-06-25 | 南车青岛四方机车车辆股份有限公司 | Flat top sealing cavity welding and clamping tool and welding method for railway vehicle |
-
2014
- 2014-03-13 CN CN201420113980.1U patent/CN203843410U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103878521A (en) * | 2014-03-13 | 2014-06-25 | 南车青岛四方机车车辆股份有限公司 | Flat top sealing cavity welding and clamping tool and welding method for railway vehicle |
| CN103878521B (en) * | 2014-03-13 | 2016-09-07 | 中车青岛四方机车车辆股份有限公司 | Rail vehicle flat-top seal chamber weld clamp frock and welding method |
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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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Chengyang District of Shandong city of Qingdao province Jinhong road 266111 No. 88 Patentee after: CRRC QINGDAO SIFANG Co.,Ltd. Address before: Chengyang District of Shandong city of Qingdao province Jinhong road 266111 No. 88 Patentee before: CSR QINGDAO SIFANG LOCOMOTIVE & ROLLING STOCK Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140924 |