CN106425258A - Overall assembly tool for passenger car body large pieces - Google Patents
Overall assembly tool for passenger car body large pieces Download PDFInfo
- Publication number
- CN106425258A CN106425258A CN201611078591.XA CN201611078591A CN106425258A CN 106425258 A CN106425258 A CN 106425258A CN 201611078591 A CN201611078591 A CN 201611078591A CN 106425258 A CN106425258 A CN 106425258A
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- China
- Prior art keywords
- frock
- base
- hydraulic
- locating rack
- hydraulic means
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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
- 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
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
- B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
- B62D65/024—Positioning of sub-units or components with respect to body shell or other sub-units or components
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses an overall assembly tool for passenger car body large pieces. The overall assembly tool comprises a side wall tool, a body structure, a front wall tool and a rear wall tool, wherein the body structure comprises a side wall frame, a front wall frame, a rear wall frame and a top frame; the side wall tool comprises a first hydraulic base, a first hydraulic device and a first tool base; one end of the first hydraulic base is articulated with one end of the first tool base; the other end of the first hydraulic base is connected with the other end of the first tool base through the hydraulic device; and the first tool base is a rectangular frame matched with the side wall frame of the body structure. In the tool disclosed by the invention, single piece welding and overall assembly welding of a passenger car are integrated; by starting a hydraulic control system and lifting the front wall, rear wall and side wall tools, the front and rear side single pieces of the body are welded; then the body is covered by a top cover to finish the overall assembly of the body; and thus, the precision can be effectively guaranteed, and the tool efficiency is improved.
Description
Technical field
The invention belongs to mechanical frock technical field, more particularly to a kind of for the large stretch of total spelling frock of bus body.
Background technology
The height of Bus Frame quality, directly determines the quality of car quality.Bus industry carcasing is all to defer to elder generation
Production five is large stretch of, then transports five sheets in total technique that spells and be merged in frock, and the skeleton precision after being merged is difficult to ensure that.In industry
Production car, the forward and backward, left side of vehicle body, right side, top, there are corresponding clamp fixture, referred to as five large stretch of frocks.Five sheets are just
Be car front wall large stretch of, back wall is large stretch of, gusset sheet (left and right), top sheet.After the completion of each sheet, then frock is spelled total
On carry out five sheets and be merged, so as to form car load skeleton.But five sheet of front road is produced in monolithic frock, then transports total spelling
It is merged in frock, precision is difficult to ensure that, therefore five traditional sheets turns after completing again and are merged, skeleton trueness error is big.
Front wall sheet assembly constitutes typically total by left and right door pillar assembly, front windshield sill assembly, two columns of left and right
Become, wiper support post assembly, steering hub column assembly, front bumper entablature assembly, headlight support beam and support, windscreen wiper
Smallclothes of device electric machine support, front windshield entablature, front wall and top cover connector and some fixation interior trims etc., the wherein part with radian
Typically there are windscreen lower and upper cross-member (one side arc is in the majority), left and right door pillar (double-faced arc or measurements of the chest, waist and hips arc are in the majority) and lamp support beam (one side
Arc or double-faced arc are in the majority) and bumper entablature (one side arc is in the majority).
Back wall sheet assembly is constituted typically has back wall left and right pillar assembly, rear windshield lower and upper cross-member, left and right door column total
Become, rear door entablature assembly, rear headlight are propped up and brush lightly beam and support, rear bumper entablature, transom beam assembly (also can be designed the bottom of at
On frame rear assembly), back wall and top cover connector and some fix part and the front wall assembly that smallclothes of interior trims etc. wherein set with arc
In have the part radian dimension of similar function identical, different simply radian size, rectangular tube casts are different with length.
Gusset sheet assembly constitutes a point left and right two panels, if can almost symmetry, otherwise part without middle door or so two panels smallclothes
Part is asymmetric.Constituting typically has on driver door rear column assembly, passenger doors rear column assembly, side window pillar, door column, side window
Vehicle body of strengthening under lower longeron, the upper and lower longeron of door and side window on longeron and door between longeron supports the diagonal brace of eyelid covering, left and right
Reversing mirror support, doorframe beam, in addition add smallclothes, the blend stop of fixing side window glass that some fix interior trims again, support door
Support and side airscoop shroud assembly (being not added with during jacking gas) etc..
Top cover sheet assembly constitutes general structure two kinds, and one kind is monolayer, and one kind is bilayer, main using which kind of pattern
Depending on requirement of the client to interior trim, if customer requirement interior trim entirety, outward appearance is luxurious, and long strip type ceiling light is no bright with interior trim transition
Aobvious boundary.
Existing patent ZL201320289773.7《A kind of bus body closes up fitting device》A kind of conjunction of bus body is disclosed
Hold together fitting device, including left stand, right stand, guide rail, gusset fixed mount, positioning fixture, lowering or hoisting gear and push-pull device at fixed；Left
Frame is oppositely arranged with right stand, and its bottom all arranges pulley；Left stand side and the right stand side relative with left stand are corresponding
Axial guidance is provided with, gusset fixed mount is driven by lowering or hoisting gear and moves on axial guidance, positioning is set on gusset fixed mount
Fixture；Left stand or/and right stand are provided with horizontal push-pull device at fixed.The prior art is only applicable to the merging to vehicle body monolithic
Journey, this mode causes body structure deformation big, the low problem of precision.
Content of the invention
It is an object of the invention to provide a kind of for the large stretch of total spelling frock of bus body, by starting hydraulic control system
System, lifts forward and backward, gusset frock, vehicle body monolithic in side will be welded to connect in front and back, then buckle top cover, and complete vehicle body and always spell, can be effective
Ensure precision；Frock efficiency is improved, is solved to turn after five traditional sheets complete again and be merged, skeleton trueness error is big etc. asks
Topic.
For solving above-mentioned technical problem, the present invention is achieved by the following technical solutions：
The present invention for a kind of for bus body large stretch of total spell frock, including gusset frock, body structure, front wall frock and
Back wall frock, the body structure includes gusset framework, front wall framework, back wall framework and top frame；The gusset frock bag
Include the first hydraulic base, the first hydraulic means and the first tooling base；Described first hydraulic base one end and the first tooling base
One end is hinged；The first hydraulic base other end is connected by hydraulic means with the first tooling base other end；Described first
Tooling base is the rectangular frame with the gusset framework cooperation of body structure.
The front wall frock includes the second hydraulic base, the second hydraulic means and the second tooling base；Second hydraulic pressure
Base one end is hinged with second tooling base one end；Described second hydraulic means one end is hinged with second hydraulic base one end；Institute
State the second hydraulic means other end hinged with second tooling base one end；Second tooling base, one surface is fixed with and front wall
Upper front wall frock and lower front wall frock that framework coordinates.
The back wall frock includes the 3rd hydraulic base, the 3rd hydraulic means and the 3rd tooling base；3rd hydraulic pressure
Base one end is hinged with the 3rd tooling base one end；Described 3rd hydraulic means one end is hinged with the 3rd hydraulic base, and described
The three hydraulic means other ends are hinged with the 3rd tooling base；3rd tooling base, one surface is fixed with and is coordinated with back wall framework
Upper back wall frock and lower back wall frock.
Further, one surface of the first tooling base is fixed with the first locating rack, the second locating rack, the 3rd positioning
Frame, the 4th locating rack and the 5th locating rack；First locating rack, the second locating rack, the 3rd locating rack, the 4th locating rack and
Fixing device is mounted on five locating racks；On first locating rack, the second locating rack, the 4th locating rack and the 5th locating rack
It is respectively and fixedly provided with locating clip.
Further, the fixing device includes that the first fixed plate, U-lag plate, the first spline, the second spline and second are solid
Fixed board；
First spline and the second spline are coordinated with the notch of U-lag plate；
The inclined-plane of first spline with and the inclined-plane of the second spline match；
Second spline is fixed in the second fixed plate；
First fixed plate, U-lag plate and the first spline are fixed by screws in together.
Further, it is respectively fixed with the upper front wall frock, lower front wall frock, upper back wall frock and lower back wall frock
Locating clip.
Further, first hydraulic means, the second hydraulic means and the 3rd hydraulic means are all using hydraulic cylinder；Described
First hydraulic means is used for the first tooling base horizontal level to the support of vertical position；Second hydraulic means is used for second
Tooling base horizontal level is to the support of vertical position；3rd hydraulic means be used for the 3rd tooling base horizontal level to erect
The support of straight position.
Further, first hydraulic base, the second hydraulic base and the 3rd hydraulic base are all in same level.
The invention has the advantages that：
1st, the frock collection car monolithic welding of the present invention, total welding are connected to one, complete by starting hydraulic control system,
Forward and backward, gusset frock is lifted, vehicle body monolithic in side will be welded to connect in front and back, then top cover is buckled, and complete vehicle body and always spell, effectively can protect
Card precision；Improve frock efficiency.
2nd, all parts of the frock of the present invention are traditional material and accessory, easily make；It is skillfully constructed, the list for breaking traditions
Transport, after piece welding, the technique being merged.
3rd, the frock of the present invention realizes the upset of machine frame by hydraulic control, power effect number, and clamping is strong, and position is adjusted
Section is flexible.
4th, the frock using effect of the present invention is good, effectively improves welding precision quality, reduces correcting value, mitigates personnel's work
Intensity.
Certainly, the arbitrary product for implementing the present invention is it is not absolutely required to while reaching all the above advantage.
Description of the drawings
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, use required for describing to embodiment below
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ability
For the those of ordinary skill of domain, on the premise of not paying creative work, can also be obtained according to these accompanying drawings other attached
Figure.
Fig. 1 is a kind of for the large stretch of total structure front view for spelling frock of bus body；
Fig. 2 is a kind of for the large stretch of total structure rearview for spelling frock of bus body；
Fig. 3 is a kind of for the large stretch of total structural side view for spelling frock of bus body；
Fig. 4 is the structure front view of gusset frock；
Fig. 5 is the partial enlarged drawing in Fig. 4 at A；
Fig. 6 is the structural side view of gusset frock；
Fig. 7 is the structural representation of the first tooling base；
Fig. 8 is the structural representation of the 3rd locating rack；
Fig. 9 is the structural representation of the first locating rack；
Figure 10 is the structural representation of the 5th locating rack；
Figure 11 is the structural side view of back wall frock；
The structural representation that Figure 12 is coordinated with back wall framework for back wall frock；
Figure 13 is the structural front view of back wall framework；
Figure 14 is the structural side view of back wall framework；
Figure 15 is the structural front view of back wall frock；
Figure 16 is the structural front view of upper back wall frock and lower back wall frock；
Figure 17 is the structural side view of front wall frock；
Figure 18 is the structural front view of body structure；
Figure 19 is the structural front view of front wall framework；
Figure 20 is the structural side view of front wall framework.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is all other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
In describing the invention, it is to be understood that term " perforate ", " on ", D score, " thickness ", " top ", " in ",
Indicating position or the position relationship such as " length ", " interior ", " surrounding ", are for only for ease of the description present invention and simplify description, and not
It is to indicate or imply that the component of indication or element must be with specific orientation, with specific azimuth configuration and operation, therefore not
It is understood that as limitation of the present invention.
Refer to shown in Fig. 1-2 0, the present invention for a kind of for bus body large stretch of total spell frock, including gusset frock 1,
Body structure 2, front wall frock 3 and back wall frock 4；As Figure 13,14,18,19 and 20, body structure 2 includes gusset framework, front wall
Framework 6, back wall framework 5 and top frame.
As shown in figs. 4-7, gusset frock 1 includes the first hydraulic base 101, the first hydraulic means 103 and the first frock bottom
Seat 102；First hydraulic base, 101 one end is hinged with 102 one end of the first tooling base；First hydraulic base, 101 other end and
One tooling base, 102 other end is connected by hydraulic means 103；First tooling base 102 is the gusset framework with body structure 2
The rectangular frame of cooperation.
As shown in figure 17, front wall frock 3 includes the second hydraulic base 301, the second hydraulic means 303 and the second tooling base
302；Second hydraulic base, 301 one end is hinged with 302 one end of the second tooling base；Second hydraulic means, 303 one end and the second liquid
Pressure 301 one end of base is hinged；Second hydraulic means, 303 other end is hinged with 302 one end of the second tooling base；Second tooling base
302 1 surfaces are fixed with the upper front wall frock 304 and lower front wall frock 305 for coordinating with 6 frame of front surrounding casing.
Back wall frock 4 includes the 3rd hydraulic base 401, the 3rd hydraulic means 402 and the 3rd tooling base 403；3rd liquid
Pressure 401 one end of base is hinged with 403 one end of the 3rd tooling base；3rd hydraulic means, 402 one end is cut with scissors with the 3rd hydraulic base 401
Connect, 402 other end of the 3rd hydraulic means is hinged with the 3rd tooling base 403；3rd tooling base, 403 1 surface be fixed with rear
Upper back wall frock 405 and lower back wall frock 404 that peripheral frame frame 5 coordinates.
Wherein as seen in figs. 8-10,102 1 surface of the first tooling base is fixed with the first locating rack 104, the second locating rack
105th, the 3rd locating rack 106, the 4th locating rack 107 and the 5th locating rack 110；First locating rack 104, the second locating rack 105,
Fixing device 108 is mounted on three locating racks 106, the 4th locating rack 107 and the 5th locating rack 110；First locating rack 104,
Locating clip 109 is respectively and fixedly provided with second locating rack 105, the 4th locating rack 107 and the 5th locating rack 110.
Wherein as shown in figure 5, fixing device 108 include the first fixed plate 1081, U-lag plate 1082, the first spline 1083,
Second spline 1085 and the second fixed plate 1084；The notch of the first spline 1083 and the second spline 1085 and U-lag plate 1082 is joined
Close；The inclined-plane of the first spline 1083 with and the inclined-plane of the second spline 1085 match；Second spline 1085 is fixed on the second fixation
On plate 1084；First fixation is realized in the interaction force of U-lag plate 1082 by the first spline 1083 and the second spline 1085
Plate 1081 is flexibly connected with the second fixed plate 1084.
First fixed plate 1081 and U-lag plate 1082 have through hole, and the first spline 1083 has screwed hole, passes through
First fixed plate 1081, U-lag plate 1082 and the first spline 1083 are fixed together by screw.
Wherein, solid respectively in upper front wall frock 304, lower front wall frock 305, upper back wall frock 405 and lower back wall frock 404
Surely there is locating clip 109, fix for coordinating with body structure 2.
Wherein, the first hydraulic means 103, the second hydraulic means 303 and the 3rd hydraulic means 402 are all using hydraulic cylinder；The
One hydraulic means 103 is used for 102 horizontal level of the first tooling base to the support of vertical position；Second hydraulic means 303 is used for
Second tooling base, 302 horizontal level is to the support of vertical position；3rd hydraulic means 402 is used for 403 water of the 3rd tooling base
Prosposition puts the support of vertical position.
Wherein, the first hydraulic base 101, the second hydraulic base 301 and the 3rd hydraulic base 401 are all in same level.
The position of locating clip 109 is set according to body structure 2, and riding position is flexible, in gusset frock 1, front wall work
Fill after being welded the gusset framework of body structure 2, front wall framework 6, back wall framework 5 in 3 and back wall frock 4 respectively, then pass through
Start hydraulic control system, forward and backward, gusset frock is lifted, vehicle body monolithic in side will be welded to connect in front and back, then top cover is buckled, and complete
Vehicle body is always spelled.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Specific features, structure, material or the feature for describing in conjunction with the embodiment or example is contained at least one enforcement of the present invention
In example or example.In this manual, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.
And, the specific features of description, structure, material or feature can be to close in any one or more embodiments or example
Suitable mode is combined.
Present invention disclosed above preferred embodiment is only intended to help and illustrates the present invention.Preferred embodiment is not detailed
All of details is described, does not also limit the specific embodiment that the invention is only described.Obviously, according to the content of this specification,
Can make many modifications and variations.This specification is chosen and specifically describes these embodiments, be in order to preferably explain the present invention
Principle and practical application so that skilled artisan can be best understood by and utilize the present invention.The present invention is only
Limited by claims and its four corner and equivalent.
Claims (6)
1. a kind of for bus body large stretch of total spell frock, including gusset frock (1), body structure (2), front wall frock (3) and
Back wall frock (4), described body structure (2) include gusset framework, front wall framework (6), back wall framework (5) and top frame；Its
It is characterised by：
Described gusset frock (1) includes the first hydraulic base (101), the first hydraulic means (103) and the first tooling base
(102)；
Wherein, described first hydraulic base (101) one end is hinged with the first tooling base (102) one end；The first hydraulic pressure bottom
Seat (101) other end is connected by hydraulic means (103) with the first tooling base (102) other end；
Wherein, described first tooling base (102) is the rectangular frame for coordinating with the gusset framework of body structure (2)；
Described front wall frock (3) include the second hydraulic base (301), the second hydraulic means (303) and the second tooling base
(302)；
Wherein, described second hydraulic base (301) one end is hinged with the second tooling base (302) one end；
Wherein, described second hydraulic means (303) one end is hinged with the second hydraulic base (301) one end；The second hydraulic pressure dress
Put (303) other end hinged with the second tooling base (302) one end；
Wherein, (302) one surface of second tooling base is fixed with upper front wall frock (304) for coordinating with front surrounding casing (6) frame
With lower front wall frock (305)；
Described back wall frock (4) include the 3rd hydraulic base (401), the 3rd hydraulic means (402) and the 3rd tooling base
(403)；
Wherein, described 3rd hydraulic base (401) one end is hinged with the 3rd tooling base (403) one end；
Wherein, described 3rd hydraulic means (402) one end is hinged with the 3rd hydraulic base (401), the 3rd hydraulic means
(402) other end is hinged with the 3rd tooling base (403)；
Wherein, (403) one surface of the 3rd tooling base is fixed with upper back wall frock (405) for coordinating with back wall framework (5)
With lower back wall frock (404).
2. according to claim 1 a kind of for the large stretch of total spelling frock of bus body, it is characterised in that first frock
(102) one surface of base is fixed with the first locating rack (104), the second locating rack (105), the 3rd locating rack (106), the 4th positioning
Frame (107) and the 5th locating rack (110)；First locating rack (104), the second locating rack (105), the 3rd locating rack (106),
Fixing device (108) is mounted on 4th locating rack (107) and the 5th locating rack (110)；First locating rack (104),
Locating clip (109) is respectively and fixedly provided with second locating rack (105), the 4th locating rack (107) and the 5th locating rack (110).
3. according to claim 1 a kind of for the large stretch of total spelling frock of bus body, it is characterised in that the fixing device
(108) include that the first fixed plate (1081), U-lag plate (1082), the first spline (1083), the second spline (1085) and second are solid
Fixed board (1084)；
First spline (1083) and the second spline (1085) are coordinated with the notch of U-lag plate (1082)；
The inclined-plane of the first spline (1083) with and the inclined-plane of the second spline (1085) match；
Second spline (1085) are fixed in the second fixed plate (1084)；
First fixed plate (1081), U-lag plate (1082) and the first spline (1083) are fixed by screws in together.
4. according to claim 1 a kind of for the large stretch of total spelling frock of bus body, it is characterised in that the upper front wall work
Locating clip is respectively fixed with dress (304), lower front wall frock (305), upper back wall frock (405) and lower back wall frock (404)
(109).
5. according to claim 1 a kind of for the large stretch of total spelling frock of bus body, it is characterised in that first hydraulic pressure
Device (103), the second hydraulic means (303) and the 3rd hydraulic means (402) are all using hydraulic cylinder；First hydraulic means
(103) it is used for the first tooling base (102) horizontal level to the support of vertical position；Second hydraulic means (303) are used for
Second tooling base (302) horizontal level is to the support of vertical position；3rd hydraulic means (402) is used for the 3rd frock bottom
Seat (403) horizontal level is to the support of vertical position.
6. according to claim 1 a kind of for the large stretch of total spelling frock of bus body, it is characterised in that first hydraulic pressure
Base (101), the second hydraulic base (301) and the 3rd hydraulic base (401) are all in same level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611078591.XA CN106425258B (en) | 2016-11-30 | 2016-11-30 | One kind is used for the large stretch of total spelling frock of bus body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611078591.XA CN106425258B (en) | 2016-11-30 | 2016-11-30 | One kind is used for the large stretch of total spelling frock of bus body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106425258A true CN106425258A (en) | 2017-02-22 |
| CN106425258B CN106425258B (en) | 2018-02-16 |
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|---|---|---|---|
| CN201611078591.XA Active CN106425258B (en) | 2016-11-30 | 2016-11-30 | One kind is used for the large stretch of total spelling frock of bus body |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108482522A (en) * | 2018-03-23 | 2018-09-04 | 郑州多元汽车装备有限公司 | All-aluminium body numerical control attaches together tire |
| CN112139733A (en) * | 2020-09-14 | 2020-12-29 | 中车长春轨道客车股份有限公司 | Flexible assembly welding clamp for steel structure of railway vehicle body |
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| CN202639713U (en) * | 2012-06-08 | 2013-01-02 | 东风设计研究院有限公司 | Vertical assembling and welding clamp equipment for left-right side wall frame assembly of passenger car body |
| CN203184867U (en) * | 2012-12-28 | 2013-09-11 | 上海申龙客车有限公司 | Automobile frame assembly welding fixture |
| CN204053319U (en) * | 2014-06-27 | 2014-12-31 | 北京汽车研究总院有限公司 | A kind of for Cab Welding Jig |
| CN104085460A (en) * | 2014-07-16 | 2014-10-08 | 常州黄海汽车有限公司 | Passenger car assembly method and passenger car assembly line |
| CN104843087A (en) * | 2015-04-14 | 2015-08-19 | 西安西沃客车有限公司 | Light bus body and manufacturing body |
| CN205184099U (en) * | 2015-09-08 | 2016-04-27 | 洛阳市极诺电动车有限公司 | Half automotive vehicle frame combination welding tool equipment |
| CN206253850U (en) * | 2016-11-30 | 2017-06-16 | 安徽安凯汽车股份有限公司 | One kind is for the large stretch of total spelling frock of bus body |
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| CN108482522A (en) * | 2018-03-23 | 2018-09-04 | 郑州多元汽车装备有限公司 | All-aluminium body numerical control attaches together tire |
| CN108482522B (en) * | 2018-03-23 | 2024-01-02 | 郑州多元智能装备股份有限公司 | Numerical control combined tyre for all-aluminum vehicle body |
| CN112139733A (en) * | 2020-09-14 | 2020-12-29 | 中车长春轨道客车股份有限公司 | Flexible assembly welding clamp for steel structure of railway vehicle body |
| CN112139733B (en) * | 2020-09-14 | 2022-03-29 | 中车长春轨道客车股份有限公司 | Flexible assembly welding clamp for steel structure of railway vehicle body |
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