CN104942506B - Low-floor bogie outside beam assembling and welding tool and assembling and welding method thereof - Google Patents
Low-floor bogie outside beam assembling and welding tool and assembling and welding method thereof Download PDFInfo
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- CN104942506B CN104942506B CN201510338980.0A CN201510338980A CN104942506B CN 104942506 B CN104942506 B CN 104942506B CN 201510338980 A CN201510338980 A CN 201510338980A CN 104942506 B CN104942506 B CN 104942506B
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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
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
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- Butt Welding And Welding Of Specific Article (AREA)
Abstract
Provided is a low-floor bogie outside beam assembling and welding tool and an assembling and welding method thereof. According to the method, it can be achieved that multiple steps of assembling can share one set of tool, box boundary beam assembling, boundary beam inner rib assembling and boundary beam outer body fastening assembling can be achieved at the same time, three-part assembling formed by low-floor boundary beams can be achieved through end ejecting device, a locating pin, a bottom support, a reinforcing beam, a rib plate locating block, an oblique plane rib plate locating block, a cross beam steel pipe locating device and the like, assembling and welding of boundary beams are achieved, and spot welding deformation control and rigid clamping can be achieved. The tool comprises a platform supporting base, a first assembling part used for clamping and locating boundary beam arch structures and a second assembling part used for clamping end bases, locating is achieved through a locating block and bolt ejecting device structure, an end compression locating device, a cover plate pressing device, a box pressing device and a cross beam steel pipe locating device are adopted for clamping, box bodies assembled by the first assembling part is lifted into a groove from a cross beam steel pipe to a box beam to complete locating and pressing of a box, and an upper cover plate is then lifted in to complete assembling and welding.
Description
Technical field
The present invention relates to the assembling of low-floor bogie side bar, welding manufacture technical field.
Background technology
Bogie assembles body structure for two sides arched tube plate, complete substantially according to the technique such as assembling, welding, adjusting one by one
Become, working performance is low, the most of the time is wasted in less important work, simultaneously polyembryony hyte dress take up room big it is difficult to achievement unit
The seriality that part assembles tolerance controls, and for realizing multistep assembling minimum area, realizing the shared a set of frock of multistep assembling can have
The production efficiency of effect lifting unit area and the cost reducing frock making, make a kind of low-floor bogie side bar multistep one
Group mounted welder.Frock can effectively be reduced manufacture quantity, improve unit area output capacity, shorten the manufacturing cycle, control welding
Technique high-volume seriality, and avoid the error because of artificial line assembling and the overproof problem of flatness.
Content of the invention
For above one or more problems, provide a kind of low-floor bogie outer beams group mounted welder and its group weldering side
Method, it is achieved that a kind of assembling of low-floor side bar multistep shares a set of frock, can assemble the assembling of casing side bar, muscle in side bar simultaneously
Assembling, side bar ectosome fasten assembling, by end top-fastener, alignment pin, bottom support, buttress brace, gusset locating piece, inclined-plane muscle
Plate locating piece, crossbeam steel pipe localizer etc., three assemblings realizing low-floor side bar composition it is achieved that side bar assembly welding, and
Controllable spot welding Deformation control and rigidity clamp.
The purpose of the present invention is achieved through the following technical solutions, and content is as follows：
A kind of low-floor bogie outer beams group mounted welder is it is characterised in that include platform seat and platform
The first assembled part on seat, the second assembled part, the axis of group mounted welder is vertical with side bar length direction to be installed, specifically
Ground：
First assembled part is used for the clamping and positioning of side bar domes, and the first assembled part includes at least two groups positioning
Block-bolt top-fastener, two groups of locating piece-bolt top-fasteners are evenly distributed on the direction along arched girder length, wherein every group of locating piece-
Bolt top-fastener includes 2 pairs of gusset locating piece 8- bolt top-fasteners, and wherein 1 pair locating piece-bolt top-fastener is separately positioned on horizontal stroke
To the position of board clamping, another 1 pair of locating piece-bolt top-fastener is separately positioned on the position of clamping longitudinal plate；First assembled part
Also include a pair symmetrically arranged inclined-plane gusset locating piece 11- bolt top-fastener, it corresponds to the arc close to both ends for the side bar
Transition part, this inclined-plane gusset locating piece-bolt top-fastener is clamped with the curved transition sections Relative vertical of side bar；
Second assembled part is used for the clamping and positioning of end seat, and the second assembled part includes at least one pair of to organize the axle of mounted welder
Line symmetrically arranged end seat clamping and positioning device, end seat clamping and positioning device includes bottom and supports 5, alignment pin 4, end compression fixed
Position device 6, end top-fastener 3, bottom supports 5 to be arranged on the leg inboard of platform seat to support end seat；End top-fastener sets
Put on bottom supports, end top-fastener is fast compressing device, for being fixed in the inner side of end seat seat board；Alignment pin is worn
Cross end seat seat board and realize located lateral, alignment pin fixed-direction is parallel to the leg direction of platform seat；End compression positioning
Device is arranged on the top of platform seat, and the seat board that end compression positioner compresses end seat in longitudinal register is positioned；
Second assembled part also includes at least one pair of cover plate compactor 10 of the axis arrangement along group mounted welder；
Second assembled part also includes at least one pair of casing compactor 13, at least one pair of crossbeam steel pipe localizer 14, a pair
Crossbeam steel pipe localizer is arranged symmetrically in the axis both sides of group mounted welder, completes the centralized positioning of steel pipe；A pair of casing compactor
It is set to clamp casing.
Further, described platform seat is main spar frame structure, and platform seat includes platform 1, puts down
Platform support column 2.
Further, the second described assembled part and the first assembled part be arranged in parallel on platform seat.
Further, the second described assembled part also include respectively with bolt top-fastener cooperation riser locating piece 16,
Altitude location block 12, altitude location block 12 is arranged on casing end short transverse and carries out positioning compression, and riser locating piece is arranged on
Vertical and axis direction carries out positioning compression to casing riser.
Further, the second ingredient also includes at least one pair of longitudinal compactor 13, in vertical and axis longitudinal direction side
To compression upper cover plate.
Further, described platform seat is provided with central web support beam engraved structure.
Further, described bottom supports as plate.
Further, the second described assembled part includes multiple cushion blocks, for the sky of the hanging part of welder's part to be organized
Gap supports.
A kind of low-floor bogie outer beams assembly welding method is it is characterised in that adopt a kind of above-mentioned low-floor bogie
Outer beams group mounted welder, comprises the following steps that：
The first step, is soldered into platform seat using platform with platform support columns group；
Second step, adopts locating piece-bolt top-fastener in the region of the first assembled part of platform seat, realizes one by one
Each gusset, the positioning of buttress brace and compression, and complete the casing group weldering of the side bar domes of the first procedure；
3rd step, lifting two end seats are positioned over bottom and support 5 as two seat board load-bearing bearings, and are carried out using alignment pin 4
Located lateral finger setting, end compression positioner 6 compress as longitudinal register, and end top-fastener 3 completes fast-holding and vertical
Degree ensures, the positioning completing seat board treats group；
4th step, lifts into cover plate, completes longitudinal register using cover plate compactor 10；
5th step, is lifted on the body structure being completed in second step and compresses casing compactor successively, hang in beam steel
Pipe, to the groove of body beam, screws crossbeam steel pipe localizer 14 and completes the centralized positioning of steel pipe and pull body beam adaptability to adjust
Whole, compress the positioning compression that remaining casing is longitudinal, short transverse compactor completes casing, complete the group welding equipment of second operation work
Connect；
6th step, hangs in upper cover plate, blocks to crossbeam steel pipe retainer edge, completes longitudinal compactor compression, spot welding casing
The assembly welding of three process is completed outside beam.
Further, when assembling many set bogies at the same time, the first procedure, second operation work, three process are simultaneously
Carry out.
The invention discloses a kind of low-floor bogie side bar group mounted welder, it is capable of：
1）Achieve the quick assembling of arch body structure and clamping；
2）The multi-section assembling realizing minimum frock quantity shares unified benchmark, reduces the wasting of resources because of multi-section frock and base
Accurate heterogeneity；
3）Can complete while assembling, while the requirement welded, six operation tasks can be completed in single step frock, decrease frock
Group weldering requires.
When producing in enormous quantities can improve production efficiency, effectively reduce frock benchmark disunity and frock floor space etc. and ask
Topic, realizes multistep integrated process beat and sequentially completes.
Brief description
Fig. 1 is the bogie top view with an embodiment of workpiece for the side bar group mounted welder of the present invention；
Fig. 2 is the A direction view of Fig. 1；
Fig. 3 is the B direction view of Fig. 1；
Fig. 4 is the top view without an embodiment of workpiece for the bogie side bar group mounted welder of the present invention；
Fig. 5 is the A direction view of Fig. 4；
Fig. 6 is the B direction view of Fig. 4；
Fig. 7 is the front view of locating piece-bolt top-fastener in an embodiment of bogie side bar group mounted welder of the present invention；
Fig. 8 is the top view of Fig. 7.
Specific embodiment
In conjunction with drawings and the specific embodiments, the present invention is further described.
As illustrated, wherein 1 platform；2 platform seats；3 end top-fasteners；4 positioning
Pin；5 bottoms support；6 end compression positioners；7 buttress braces；8 locating pieces；9 platforms connect spiral shell
Bolt；10 cover plate compactors；11 inclined-plane gusset locating pieces；12 altitude location blocks；13 longitudinal compactors；
14 crossbeam steel pipe localizers；15 cushion blocks；16 riser locating pieces.
A kind of low-floor bogie outer beams group mounted welder includes first group on platform seat and platform seat
Dress part, the second assembled part, the axis of group mounted welder is vertical with side bar length direction to be installed, and platform seat is square
Beam frame structure, platform seat is welded by platform 1 and 4 platform support columns 2.
First assembled part is used for the clamping and positioning of side bar domes, and the first assembled part includes at least two groups positioning
Block-bolt top-fastener, two groups of locating piece-bolt top-fasteners are evenly distributed on the direction along arched girder length, wherein every group of locating piece-
Bolt top-fastener includes 2 pairs of gusset locating piece 8- bolt top-fasteners, and wherein 1 pair locating piece-bolt top-fastener is separately positioned on horizontal stroke
To the position of board clamping, another 1 pair of locating piece-bolt top-fastener is separately positioned on the position of clamping longitudinal plate；Corresponding side bar is close
The curved transition sections at both ends, the first assembled part also includes a pair symmetrically arranged inclined-plane gusset locating piece 11- bolt and holds out against
Device, this inclined-plane gusset locating piece-bolt top-fastener is clamped with the curved transition sections Relative vertical of side bar；
Second assembled part is used for the clamping and positioning of end seat, and the second assembled part includes at least one pair of to organize the axle of mounted welder
Line symmetrically arranged end seat clamping and positioning device, end seat clamping and positioning device includes bottom and supports 5, alignment pin 4, end compression fixed
Position device 6, end top-fastener 3, bottom supports 5 to be arranged on the leg inboard of platform seat to support end seat；End top-fastener sets
Put on bottom supports, end top-fastener is fast compressing device, for being fixed in the inner side of end seat seat board；Alignment pin is worn
Cross end seat seat board and realize located lateral, alignment pin fixed-direction is parallel to the leg direction of platform seat；End compression positioning
Device is arranged on the top of platform seat, and the seat board that end compression positioner compresses end seat in longitudinal register is positioned；Second
Assembled part also includes at least one pair of cover plate compactor 10 of the axis arrangement along group mounted welder；Second assembled part also include to
Few a pair of casing compactor 13, at least one pair of crossbeam steel pipe localizer 14, a pair of beams steel pipe localizer is in the axle of group mounted welder
Line both sides are arranged symmetrically, and complete the centralized positioning of steel pipe；A pair of casing compactor is set to clamp casing.Second assembled part with
First assembled part be arranged in parallel on platform seat.
Second assembled part also includes riser locating piece 16, the altitude location block 12 with the cooperation of bolt top-fastener respectively, high
Degree locating piece 12 is arranged on casing end short transverse and carries out positioning compression, and riser locating piece is arranged on vertical and axis direction pair
Casing riser carries out positioning compression.Second ingredient also includes 2 to longitudinal compactor 13, in vertical and axis longitudinal direction
Compression upper cover plate.
Platform seat is provided with central web support beam engraved structure.Bottom supports as plate.Second assembled part includes
Multiple cushion blocks, the space for the hanging part of welder's part to be organized supports.
Locating piece bolt top-fastener is using the centre that the beam of workpiece is positioned at two boards part, then swivel bolt spiral shell
The bolt crown is lived plate and is clamped.
Inclined-plane gusset locating piece is 15 ° with the inclination angle of horizontal direction.
In a further embodiment, platform seat is rectangle or I-shaped structure.
In a further embodiment, the quantity of each locating piece bolt top-fastener and position can be according to the beams of workpiece
Position and concrete configuration.
In a further embodiment, each top-fastener and compactor can adopt fast compressing device or other bolts, pad
The top-fastener of the form of cooperation.
The assembly welding method of the present invention is as follows：
（1）Using main spar frame structure, and the purposes of bonded block assembling increases central web support beam engraved structure,
Form platform, be soldered into by part 1,2 groups of part, see A view；
（2）Using part 8, part 11 locating piece and bolt top-fastener, realize one by one each gusset, riser be positioned compress, and
Complete the casing group weldering of first side bar domes；
（3）Lift two end seats and be positioned over plate 5 as two seat board load-bearing bearings, and adopt part 4 located lateral finger setting, part
6 as longitudinal register compression, and part 3 completes fast-holding and perpendicularity ensures, the positioning completing seat board treats group；
（4）Lift into cover plate, longitudinal register is completed using part 10 cover plate compactor；
（5）It is lifted on（2）Walk the body structure being completed and compress casing compactor successively, hang in crossbeam steel pipe to case
The groove of body beam, screws part 14 crossbeam steel pipe localizer and completes the centralized positioning of steel pipe and pull body beam accommodation, pressure
The positioning compression that remaining casing tight is longitudinal, short transverse compactor completes casing；Complete second assembly welding；
（6）Hang in upper cover plate, block to crossbeam steel pipe retainer edge, complete longitudinal compactor compression, outside spot welding body beam
Side carries out the 3rd road assembly welding.
When assembling many set bogies at the same time, the first procedure second operation work is carried out simultaneously；First procedure and the 3rd
Procedure is carried out simultaneously.
Can complete while assembling, while the requirement welded, six operation tasks can be completed in single step frock, decrease the group of frock
Weldering requires.The assembling of achievable multistep shares a set of frock, can realize simultaneously the assembling of casing side bar, muscle assembling in side bar, outside side bar
Body fastens assembling, by end top-fastener, alignment pin, bottom support, buttress brace, gusset locating piece, inclined-plane gusset locating piece, horizontal stroke
Joist steel pipe localizer etc., three assemblings realizing low-floor side bar composition are it is achieved that side bar assembly welding, and controllable spot welding becomes
Shape controls and rigidity clamps.
Finally it should be noted that:The above example only technical scheme in order to this case to be described is not intended to limit；Although
With reference to preferred embodiment, this case is described in detail, those of ordinary skill in the art should be understood：Still permissible
The specific embodiment of this case is modified or equivalent is carried out to some technical characteristics；Without deviating from this case technical side
The spirit of case, it all should be covered in the middle of the technical scheme scope that this case is claimed.
Claims (10)
1. a kind of low-floor bogie outer beams group mounted welder is it is characterised in that include platform seat and platform seat
On the first assembled part, the second assembled part, group mounted welder axis vertical with side bar length direction to be installed, specifically
Ground：
First assembled part is used for the clamping and positioning of side bar domes, and the first assembled part includes at least two groups locating piece-spiral shells
Bolt top-fastener (8), two groups of locating piece-bolt top-fasteners are evenly distributed on the direction along arched girder length, wherein every group of locating piece-spiral shell
Bolt top-fastener includes 2 pairs of gusset locating piece-bolt top-fasteners, and wherein 1 pair locating piece-bolt top-fastener is separately positioned on transverse plate
The position of clamping, another 1 pair of locating piece-bolt top-fastener is separately positioned on the position of clamping longitudinal plate；
First assembled part also includes a pair symmetrically arranged inclined-plane gusset locating piece-bolt top-fastener (11), and it corresponds to side
, close to the curved transition sections at both ends, this inclined-plane gusset locating piece-bolt top-fastener is relative with the curved transition sections of side bar vertical for beam
Straight clamping；
Second assembled part is used for the clamping and positioning of end seat, and the second assembled part includes at least one pair of to organize the axis pair of mounted welder
Claim the end seat clamping and positioning device of setting, end seat clamping and positioning device includes bottom and supports (5), alignment pin (4), end compression fixed
Position device (6), end top-fastener (3), bottom supports (5) to be arranged on the leg inboard of platform seat to support end seat；End is pushed up
Tight device is arranged on bottom and supports, and end top-fastener is fast compressing device, for being fixed in the inner side of end seat seat board；Fixed
Position pin realizes located lateral through end seat seat board, and alignment pin fixed-direction is parallel to the leg direction of platform seat；End is pressed
Tight localizer is arranged on the top of platform seat, and the seat board that end compression positioner compresses end seat in longitudinal register carries out fixed
Position；
Second assembled part also includes at least one pair of cover plate compactor (10) of the axis arrangement along group mounted welder；
Second assembled part also includes at least one pair of casing compactor (13), at least one pair of crossbeam steel pipe localizer (14), a pair
Crossbeam steel pipe localizer is arranged symmetrically in the axis both sides of group mounted welder, completes the centralized positioning of steel pipe；A pair of casing compactor
It is set to clamp casing.
2. a kind of low-floor bogie outer beams group mounted welder according to claim 1 is it is characterised in that described platform
Support base is main spar frame structure, and platform seat includes platform (1), platform support columns (2).
3. a kind of low-floor bogie outer beams group mounted welder according to claim 1 is it is characterised in that described second
Assembled part is be arranged in parallel on platform seat with the first assembled part.
4. a kind of low-floor bogie outer beams group mounted welder according to claim 1 is it is characterised in that described second
Assembled part also includes riser locating piece (16), the altitude location block (12) with the cooperation of bolt top-fastener respectively, altitude location block
(12) it is arranged on casing end short transverse and carries out positioning compression, riser locating piece is arranged on and vertically with axis direction, casing is stood
Plate carries out positioning compression.
5. according to a kind of arbitrary described low-floor bogie outer beams group mounted welder of Claims 1-4 it is characterised in that
Two ingredients also include at least one pair of longitudinal compactor (13), in vertical and axis longitudinal direction compression upper cover plate.
6. according to a kind of arbitrary described low-floor bogie outer beams group mounted welder of Claims 1-4 it is characterised in that institute
The platform seat stated is provided with central web support beam engraved structure.
7. according to a kind of arbitrary described low-floor bogie outer beams group mounted welder of Claims 1-4 it is characterised in that institute
The bottom stated supports as plate.
8. according to a kind of arbitrary described low-floor bogie outer beams group mounted welder of Claims 1-4 it is characterised in that institute
The second assembled part stated includes multiple cushion blocks, and the space for the hanging part of welder's part to be organized supports.
9. a kind of low-floor bogie outer beams assembly welding method is it is characterised in that adopt the claims 5 to 8 arbitrary described
A kind of low-floor bogie outer beams group mounted welder, comprise the following steps that：
The first step, is soldered into platform seat using platform with platform support columns group；
Second step, adopts locating piece-bolt top-fastener in the region of the first assembled part of platform seat, realizes each muscle one by one
Plate, the positioning of buttress brace and compression, and complete the casing group weldering of the side bar domes of the first procedure；
3rd step, lifting two end seats are positioned over bottom and support (5) as two seat board load-bearing bearings, and are carried out using alignment pin (4)
Located lateral finger setting, end compression positioner (6) as longitudinal register compress, end top-fastener (3) complete fast-holding and
Perpendicularity ensures, the positioning completing seat board treats group；
4th step, lifts into cover plate, completes longitudinal register using cover plate compactor (10)；
5th step, is lifted on the body structure being completed in second step and compresses casing compactor successively, hang in crossbeam steel pipe extremely
The groove of body beam, screws crossbeam steel pipe localizer (14) and completes the centralized positioning of steel pipe and pull body beam accommodation,
Compress the positioning compression that remaining casing is longitudinal, short transverse compactor completes casing, complete the assembly welding of second operation work；
6th step, hangs in upper cover plate, blocks to crossbeam steel pipe retainer edge, completes longitudinal compactor compression, outside spot welding body beam
Side completes the assembly welding of three process.
10. a kind of low-floor bogie outer beams assembly welding method according to claim 9 is it is characterised in that group at the same time
During dress many sets bogie, the first procedure, second operation work, three process are carried out simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510338980.0A CN104942506B (en) | 2015-06-18 | 2015-06-18 | Low-floor bogie outside beam assembling and welding tool and assembling and welding method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510338980.0A CN104942506B (en) | 2015-06-18 | 2015-06-18 | Low-floor bogie outside beam assembling and welding tool and assembling and welding method thereof |
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| CN104942506A CN104942506A (en) | 2015-09-30 |
| CN104942506B true CN104942506B (en) | 2017-02-22 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105290677A (en) * | 2015-11-18 | 2016-02-03 | 德马科起重机械有限公司 | Welding, clamping and locating device for main beam of large crane |
| CN107717188B (en) * | 2017-11-03 | 2019-11-22 | 中车青岛四方机车车辆股份有限公司 | Muscle double computer cooperation automatic soldering method in a kind of rail vehicle curb girder |
| CN107931878B (en) * | 2017-11-14 | 2020-05-22 | 中车长春轨道客车股份有限公司 | Assembly welding process for box beam inserting structure framework |
| CN111360468B (en) * | 2018-12-26 | 2022-04-22 | 中车唐山机车车辆有限公司 | Assembly welding tool for vertical plate and rib plate in fish-belly sill and welding method for fish-belly sill |
| CN110936044B (en) * | 2019-12-17 | 2021-10-08 | 中车长春轨道客车股份有限公司 | Assembly welding method for B-type subway vehicle frame |
| CN112374343B (en) * | 2020-10-28 | 2022-10-14 | 上海二十冶建设有限公司 | Assembling and hoisting method for portal box body beam of semi-portal scraper reclaimer |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101068485B1 (en) * | 2009-12-07 | 2011-09-28 | 한국철도기술연구원 | Jig apparatus for load test of fiber reinforced composite bogie frames for railway vehicles |
| JP2012076731A (en) * | 2010-09-06 | 2012-04-19 | Hitachi Ltd | Manufacturing method of bogie frame for rail car and hollow structure |
| CN201881095U (en) * | 2010-11-24 | 2011-06-29 | 长春轨道客车股份有限公司 | Framework assembling base of frame structure |
| CN202015915U (en) * | 2010-12-24 | 2011-10-26 | 南车南京浦镇车辆有限公司 | Universal workbench of bogie processing center |
| CN103639633B (en) * | 2013-12-17 | 2015-12-02 | 济南轨道交通装备有限责任公司 | A kind of bogie frame combined type group to tire and group to method |
| CN203843408U (en) * | 2014-02-26 | 2014-09-24 | 江苏中辆科技有限公司 | Welding tool for side beams of bogies |
| CN104368937B (en) * | 2014-11-19 | 2016-06-15 | 中车青岛四方机车车辆股份有限公司 | The quick assembly-welding device of lateral beam of bogie |
| CN204747870U (en) * | 2015-06-18 | 2015-11-11 | 南车青岛四方机车车辆股份有限公司 | Low -floor bogie outside roof beam assembly welding frock |
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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 and Rolling Stock Co., Ltd. |