CN110369928A - A kind of side bearing loading mode vehicle frame group is to method - Google Patents
A kind of side bearing loading mode vehicle frame group is to method Download PDFInfo
- Publication number
- CN110369928A CN110369928A CN201910491841.XA CN201910491841A CN110369928A CN 110369928 A CN110369928 A CN 110369928A CN 201910491841 A CN201910491841 A CN 201910491841A CN 110369928 A CN110369928 A CN 110369928A
- Authority
- CN
- China
- Prior art keywords
- vehicle frame
- locating piece
- side bearing
- curb girder
- end carriage
- 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.)
- Granted
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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/003—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to controlling of welding distortion
-
- 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
-
- 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
- B23K37/0461—Welding tables
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Automatic Assembly (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The present invention relates to a kind of side bearing loading mode vehicle frame groups to method, it solves the vehicle frame in a manner of side bearing loading and is not available existing common railway car, Truck Frame Model group to mode, and when common railway car, Truck Frame Model group in mode to improving, there are still positioning accuracies it is poor, production efficiency is low the problems such as.The side bearing loading mode vehicle frame group is to method, comprising the following steps: the locating piece of vehicle frame inner beam, crossbeam, attachment beam, curb girder, end carriage is arranged in welding platform;According to curb girder, the position of end carriage and size, clamping device is set at its corresponding locating piece;The crossbeam of the not set locating piece in part, attachment beam are subjected to scribing line positioning;Inner beam, crossbeam, attachment beam, curb girder, end carriage are organized pair in welding platform, and is welded;Draw beam is soldered on vehicle frame, side bearing hole is processed, and examines the relative position in side bearing hole with technique pin;Channel steel is placed at the both ends of vehicle frame, and carries out reversible deformation welding;By iron floor welded on vehicle frame.
Description
Technical field
The invention belongs to repairing car for overhead contact line equipment manufacturing fields, and in particular to a kind of side bearing loading mode vehicle frame group is to method.
Background technique
Repairing car for overhead contact line equipment belongs to rail engineering automobile, wherein there is a kind of repairing car for overhead contact line equipment (hereinafter referred to as type of model
Repairing car for overhead contact line equipment) it is organized into groups in structure for each column 12, including No. 01 tractor, No. 02 tool car, No. 03 tool car, No. 04
Tool car, No. 05 storage vehicle, No. 06 dining car, No. 07 meeting vehicle, No. 08 sleeper, No. 09 sleeper, No. 10 sleeper, No. 11 do
Bus, No. 12 tractors.The type repairing car for overhead contact line equipment maximum travel speed is 120km/h, and it is 173.8m that top, which is equipped with length,
Perforation lift work platform, vehicle collection perforation lift work platform operations, traction, bow net take electricity, power generation, equipment operation, material
The functions such as material and tool storage, board and lodging, meeting, on-site working are integrated.When the type repairing car for overhead contact line equipment completes, on vehicle frame 8
It is 2mm that a side bearing hole, which needs concentric and fit clearance with 8 side bearing pins on bogie,.The type repairing car for overhead contact line equipment vehicle frame is by interior
The composition such as beam, curb girder, crossbeam, draw beam, attachment beam, end carriage, iron floor.
In the prior art, common railway car, Truck Frame Model group to forming in two steps:
One, on the basis of cartridge, two inner beams are first placed in welding platform, after determining its relative position, operative employee is again
By positions such as draw beam, crossbeam, attachment beams by scribing line positioning, then guarantee entire vehicle frame by welding locating piece on platform
Length and width, after end carriage and curb girder are fixed on the inside of locating piece, finally by entire Frame Welding.
Two, vehicle frame is supported with split heads, is laid with behind iron floor and compresses positioning with clamping cylinder, then carries out the weldering of iron floor
It connects.
Center bearing when common railway car, lorry completion on the body center plate and bogie on car body is connected with cartridge pin
It connects, on the basis of vehicle frame group clock synchronization can be by cartridge.And the type repairing car for overhead contact line equipment is not in the mood for dish structure, concentrates carrying by side bearing, with
There are architectural differences for common railway vehicle, therefore cannot be carried out in a manner of common vehicle frame group pair, it is necessary to improve its method, and common
Vehicle frame group has the disadvantage in that manufacturing process
One, positioning accuracy is poor: the positioning of inner beam, crossbeam, attachment beam etc. is leaned on operative employee to cross entirely and is determined, the thickness of lines,
Human error, accessory and matching degree of position line etc. will affect positioning accuracy.
Two, production efficiency is low: the beam bodies number of fitting parts such as inner beam, crossbeam, attachment beam is more, determines its position using crossing one by one
It sets and will cause inefficiency, and be not suitable for batch production.
Three, end carriage and curb girder fixed form are unreasonable: after determining vehicle frame length and width, need to determine end with locating piece
The position of beam and curb girder, but according to common vehicle frame design feature, locating piece can only be welded on the outside of end carriage and curb girder, work as vehicle frame
After assembling, need to remove locating piece could remove vehicle frame into subsequent processing.When assembling next vehicle frame, need again
Locating piece is welded, the fixed form which removes locating piece is very unreasonable.
Four, locating piece is installed and dismantled time-consuming and laborious: every time when group truck-loading rack, the locating piece of fixed end beam and curb girder is needed
Scribing line, welding, cutting, polishing operation are undergone repeatedly, so that the time-consuming and laborious process.
Summary of the invention
Present invention aim to address the vehicle frames in a manner of side bearing loading not to be available existing common railway car, lorry vehicle
Frame group is to mode, and when common railway car, Truck Frame Model group in mode to improving, that there are still positioning accuracies is poor,
The problems such as production efficiency is low, and a kind of side bearing loading mode vehicle frame group is provided to method.
To achieve the above object, the technical solution of the invention is as follows:
A kind of side bearing loading mode vehicle frame group is characterized in that method, comprising the following steps:
The longitudinally, laterally center line of vehicle frame is arranged in S1 in welding platform;
S2 places vehicle frame inner beam, crossbeam, connection on the basis of the longitudinally, laterally center line of vehicle frame in welding platform
Beam, curb girder, end carriage locating piece;
S3, the position according to locating piece in vehicle frame layout design size calibration welding platform;
Locating piece is fixed in welding platform by S4;
Clamping device is arranged according to curb girder, the position of end carriage and size in S5 at its corresponding locating piece;
The crossbeam of the not set locating piece in part, attachment beam are carried out scribing line positioning by S6;
Inner beam, crossbeam, attachment beam are placed sequentially in group in welding platform by the position of locating piece and scribing line positioning by S7
It is right, and the size of inner beam, crossbeam, attachment beam is carried out by bedding-in according to the position after determination;
Curb girder, end carriage are placed on group pair in welding platform using locating piece by S8;
S9 is fixed curb girder, end carriage and locating piece using clamping device;
S10, by group pair inner beam, crossbeam, attachment beam, curb girder, end carriage carry out spot welding, then by the inner beam of postwelding, crossbeam,
Attachment beam, curb girder, end carriage carry out positive welding;
S11 first unclamps clamping device, the vehicle frame overturning that then will be welded, and with draw beam group to rear, draw beam is welded
It is connected on vehicle frame;
S12 processes side bearing hole on side bearing plate, and the relative position in side bearing hole is examined with technique pin;
S13 places channel steel at the both ends of vehicle frame, and carries out reversible deformation welding;
S14 overturns vehicle frame again, iron floor is laid on vehicle frame, and iron floor is welded with vehicle frame;
Vehicle frame group is completed to rear, locating piece is retained in welding platform, is being carried out next vehicle frame group clock synchronization, is being repeated step
S6-S14。
Further, the clamping device uses cylinder, and cylinder is fixed on the outside of locating piece, by by the piston on cylinder
Bar is released, and curb girder or end carriage can be fixed between locating piece and piston rod.
Further, the clamping device includes fixed block, lead screw, and the screw being welded on fixed block, fixed block
It is fixed on the outside of welding platform, by the way that curb girder or end carriage can be fixed between locating piece and lead screw by lead screw screw-in screw.
Further, the locating piece is fixed in welding platform by welding.
The beneficial effects of the present invention are:
(1) present invention improves on the basis of existing common railway car, Truck Frame Model group are to mode, and overcomes
The problems such as common railway car, Truck Frame Model group are poor to positioning accuracy in mode, production efficiency is low, method of the invention can be high
Effect completes the vehicle frame group pair of side bearing loading mode.
(2) present invention carries out curb girder, end carriage, inner beam, crossbeam, attachment beam using the mode that locating piece and scribing line combine
Positioning, the setting of locating piece significantly improve production efficiency, reduce operative employee's judgement and measurement bring error, Jin Erti
High positioning accuracy;Operative employee can utilize the positional relationship of locating piece and locating piece, quickly by a small amount of unknown positional relationship
It is determined by scribing line, this method not only reduces the quantity of locating piece, also can avoid effect caused by the processes such as a large amount of scribing line, verification
Rate is low, the big problem of error.
(3) outside of right angle locating piece is arranged in end carriage and curb girder, and clamping device is easy to use to fix end carriage and curb girder,
Subsequent processing can be entered without removing locating piece after welding has been completed, so that the fixed form is flexibly practical, rationally effective.
(4) every time group truck-loading rack when, locating piece in welding platform can Reusability, it is fixed when group truck-loading rack every time to avoid
Position block need to undergo the processes such as welding, cutting, polishing repeatedly, and this method is suitable for mass production, time saving and labor saving.
Detailed description of the invention
Fig. 1 is that locating piece is fixed on the main view in welding platform;
Fig. 2 is that locating piece is fixed on the top view in welding platform;
Fig. 3 is that clamping device is mounted on the schematic diagram in welding platform;
Fig. 4 be inner beam, crossbeam, attachment beam, curb girder, end carriage in welding platform group to schematic diagram;
Fig. 5 be draw beam group to and side bearing hole site schematic diagram;
Fig. 6 is channel steel schematic view of the mounting position;
Fig. 7 is iron floor schematic view of the mounting position.
Appended drawing reference is as follows:
1- welding platform, 2- locating piece, 3- clamping device, 4- inner beam, 5- crossbeam, 6- attachment beam, 7- curb girder, 8- end carriage,
9- draw beam, 10- side bearing hole, 11- channel steel, 12- iron floor.
Specific embodiment
The contents of the present invention are described in further detail below in conjunction with the drawings and specific embodiments:
As shown in Figures 1 to 7, which starts with to method from the specific structure of the type vehicle frame, ginseng
Common railway car, Truck Frame Model assemble method are examined, following steps are made:
As shown in Figure 1 and Figure 2, the longitudinally, laterally center line of vehicle frame is arranged in S1 in welding platform 1;
S2 is placed vehicle frame inner beam 4 in welding platform 1, crossbeam 5, is connected on the basis of the longitudinally, laterally center line of vehicle frame
Connect the locating piece 2 of beam 6, curb girder 7, end carriage 8;
S3, the position according to locating piece 2 in vehicle frame layout design size calibration welding platform 1;
Locating piece 2 is welded in welding platform 1 by S4;
The locating piece 2 can Reusability, while reducing operative employee's judgement and measurement bring error, so improve it is fixed
Position precision and location efficiency;
As shown in figure 3, S5 is arranged at its corresponding locating piece 2 and clamps according to curb girder 7, the position of end carriage 8 and size
Device 3;The quantity of clamping device 3 is set according to needs of production, so that clamping device 3 is matched with locating piece 2 to incite somebody to action
Curb girder 7, end carriage 8 are fixed.
End carriage 8 and curb girder 7 are fixed on to the outside of right angle locating piece by using clamping device 3, complete end carriage 8 and curb girder
For 7 vehicle frame groups to rear, handling process can be entered by not having to remove locating piece 2;
Clamping device 3 includes mounting blocks, lead screw, and the nut being arranged on mounting blocks, and it is flat that mounting blocks are fixed on welding
On platform 1, positioned at the outside of locating piece 2, by the way that curb girder 7 or end carriage 8 can be fixed on locating piece 2 and silk by lead screw screw-in nut
Between thick stick.
The crossbeam 5 of the not set locating piece 2 in part, attachment beam 6 are carried out scribing line positioning by S6;
Since crossbeam 5,6 quantity of attachment beam are more, the method that scribing line positioning is carried out using part crossbeam 5, attachment beam 6, behaviour
Workmanship can utilize the positional relationship of locating piece and locating piece, quickly determine a small amount of unknown positional relationship by scribing line;
As shown in figure 4, S7, inner beam 4, crossbeam 5, attachment beam 6 are sequentially placed by the position of locating piece 2 and scribing line positioning
The group pair in welding platform 1, and the size of inner beam 4, crossbeam 5, attachment beam 6 is carried out by bedding-in according to the position after determination;
Curb girder 7, end carriage 8 are placed on group pair in welding platform 1 using locating piece 2 by S8;
The outside of right angle locating piece is arranged in end carriage 8 and curb girder 7, is easy to use clamping device by end carriage 8 and curb girder 7 from weldering
The outside for connecing platform 1 is fixed;
S9, it is using clamping device 3 that curb girder 7, end carriage 8 and locating piece 2 is fixed;
The inner beam 4 of group pair, crossbeam 5, attachment beam 6, curb girder 7, end carriage 8 are carried out spot welding by S10, then by the inner beam of postwelding
4, crossbeam 5, attachment beam 6, curb girder 7, end carriage 8 carry out positive welding;
As shown in figure 5, S11, first unclamps clamping device 3, the vehicle frame overturning that then will be welded, with 9 groups pairs of draw beam
Afterwards, draw beam 9 is soldered on vehicle frame;
S12 processes side bearing hole 10 on side bearing plate, and the relative position in side bearing hole 10 is examined with technique pin;
As shown in fig. 6, S13, places channel steel 11 at the both ends of vehicle frame, and carry out reversible deformation welding;
As shown in fig. 7, S14, vehicle frame is overturn again, it is laid with iron floor 12 on vehicle frame, and by iron floor 12 and vehicle frame
It is welded.
Vehicle frame group is completed to rear, locating piece 2 is retained in welding platform 1, is being carried out next vehicle frame group clock synchronization, is being repeated step
S6-S14。
Every time when group truck-loading rack, locating piece in welding platform can Reusability, this method is suitable for mass production, both time saving
It is again laborsaving.
The above description is only an embodiment of the present invention, and it is not intended to limit the protection scope of the present invention, all to utilize the present invention
Equivalent structure transformation made by specification and accompanying drawing content, is applied directly or indirectly in other relevant technical fields, and wraps
It includes in scope of patent protection of the invention.
Claims (4)
1. a kind of side bearing loading mode vehicle frame group is to method, which comprises the following steps:
The longitudinally, laterally center line of vehicle frame is arranged in S1 on welding platform (1);
S2, on the basis of the longitudinally, laterally center line of vehicle frame, on welding platform (1) place vehicle frame inner beam (4), crossbeam (5),
Attachment beam (6), curb girder (7), end carriage (8) locating piece (2);
S3, the position according to locating piece (2) on vehicle frame layout design size calibration welding platform (1);
Locating piece (2) is fixed on welding platform (1) by S4;
Clamping device (3) are arranged at its corresponding locating piece (2) according to curb girder (7), the position of end carriage (8) and size in S5;
The crossbeam (5) of the not set locating piece in part (2), attachment beam (6) are carried out scribing line positioning by S6;
Inner beam (4), crossbeam (5), attachment beam (6) are placed sequentially in welding by the position of locating piece (2) and scribing line positioning by S7
Group pair on platform (1), and the size of inner beam (4), crossbeam (5), attachment beam (6) is carried out by bedding-in according to the position after determination;
Curb girder (7), end carriage (8) are placed on group pair on welding platform (1) using locating piece (2) by S8;
S9 is fixed curb girder (7), end carriage (8) and locating piece (2) using clamping device (3);
The inner beam (4) of group pair, crossbeam (5), attachment beam (6), curb girder (7), end carriage (8) are carried out spot welding, then will put postwelding by S10
Inner beam (4), crossbeam (5), attachment beam (6), curb girder (7), end carriage (8) carry out positive welding;
S11 first unclamps clamping device (3), the vehicle frame overturning that then will be welded, with draw beam (9) group to rear, by draw beam
(9) it is soldered on vehicle frame;
S12 processes side bearing hole (10) on side bearing plate, and the relative position of side bearing hole (10) is examined with technique pin;
S13 places channel steel (11) at the both ends of vehicle frame, and carries out reversible deformation welding;
S14 overturns vehicle frame again, is laid with iron floor (12) on vehicle frame, and iron floor (12) are welded with vehicle frame;
Vehicle frame group is completed to rear, locating piece (2) is retained on welding platform (1), is being carried out next vehicle frame group clock synchronization, is being repeated step
S6-S14。
2. a kind of side bearing loading mode vehicle frame group according to claim 1 is to method, it is characterised in that: the clamping device
(3) cylinder is used, cylinder is fixed on the outside of locating piece, can be by curb girder (7) or end carriage by releasing the piston rod on cylinder
(8) it is fixed between locating piece (2) and piston rod.
3. a kind of side bearing loading mode vehicle frame group according to claim 1 is to method, it is characterised in that: the clamping device
It (3) include fixed block, lead screw, and the screw being welded on fixed block, fixed block is fixed on the outside of welding platform (1), passes through
Curb girder (7) or end carriage (8) can be fixed between locating piece (2) and lead screw by lead screw screw-in screw.
4. a kind of side bearing loading mode vehicle frame group according to claim 3 is to method, it is characterised in that: the locating piece
(2) it is fixed on by welding on welding platform (1).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910491841.XA CN110369928B (en) | 2019-06-06 | 2019-06-06 | Side bearing type frame assembling method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910491841.XA CN110369928B (en) | 2019-06-06 | 2019-06-06 | Side bearing type frame assembling method |
Publications (2)
Publication Number | Publication Date |
---|---|
CN110369928A true CN110369928A (en) | 2019-10-25 |
CN110369928B CN110369928B (en) | 2020-12-29 |
Family
ID=68249927
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910491841.XA Active CN110369928B (en) | 2019-06-06 | 2019-06-06 | Side bearing type frame assembling method |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110369928B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112427822A (en) * | 2020-10-29 | 2021-03-02 | 中车石家庄车辆有限公司 | Underframe manufacturing process |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6398101B1 (en) * | 2001-05-31 | 2002-06-04 | Dimensional Tooling Solutions, Inc. | Bi-directional compliant precision linear slide |
CN102101219A (en) * | 2010-12-14 | 2011-06-22 | 南车南京浦镇车辆有限公司 | Production method of chassis of railway vehicle |
CN103521986A (en) * | 2013-10-31 | 2014-01-22 | 南车戚墅堰机车有限公司 | Vehicle frame assembling table |
CN104057236A (en) * | 2014-07-02 | 2014-09-24 | 南车戚墅堰机车有限公司 | Box beam positioning assembly welding device |
CN105499985A (en) * | 2015-12-30 | 2016-04-20 | 中车太原机车车辆有限公司 | Multifunctional main frame assembly tire |
CN109794725A (en) * | 2019-04-03 | 2019-05-24 | 山东宏康机械制造有限公司 | A kind of large size Frame Welding positioning tire and welding technique |
-
2019
- 2019-06-06 CN CN201910491841.XA patent/CN110369928B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6398101B1 (en) * | 2001-05-31 | 2002-06-04 | Dimensional Tooling Solutions, Inc. | Bi-directional compliant precision linear slide |
CN102101219A (en) * | 2010-12-14 | 2011-06-22 | 南车南京浦镇车辆有限公司 | Production method of chassis of railway vehicle |
CN103521986A (en) * | 2013-10-31 | 2014-01-22 | 南车戚墅堰机车有限公司 | Vehicle frame assembling table |
CN104057236A (en) * | 2014-07-02 | 2014-09-24 | 南车戚墅堰机车有限公司 | Box beam positioning assembly welding device |
CN105499985A (en) * | 2015-12-30 | 2016-04-20 | 中车太原机车车辆有限公司 | Multifunctional main frame assembly tire |
CN109794725A (en) * | 2019-04-03 | 2019-05-24 | 山东宏康机械制造有限公司 | A kind of large size Frame Welding positioning tire and welding technique |
Non-Patent Citations (1)
Title |
---|
李雄飞: "A型货运电力机车底架组焊工装设计", 《大连交通大学学报》 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112427822A (en) * | 2020-10-29 | 2021-03-02 | 中车石家庄车辆有限公司 | Underframe manufacturing process |
Also Published As
Publication number | Publication date |
---|---|
CN110369928B (en) | 2020-12-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN206200431U (en) | A kind of car side wall frame welding tooling | |
EP1075347B1 (en) | Installation for positioning and welding body parts of different types of motor vehicles | |
EP0658397B1 (en) | Device for spot welding of structures constituted by sheet metal elements, particularly motor-vehicle bodies | |
CN110369928A (en) | A kind of side bearing loading mode vehicle frame group is to method | |
CN218169237U (en) | Positioning and clamping device for steel structure welding | |
CN109794725B (en) | Positioning tire for welding large-sized frame and welding process method | |
CN104400282A (en) | Agricultural vehicle cab welding method | |
CN110860643A (en) | Positioning riveting tool for traction beam of railway vehicle frame | |
CN214161933U (en) | Longitudinal beam welding device | |
CN111761188B (en) | Novel unit assembly welding tool for railway vehicle | |
CN105081649B (en) | A kind of application method of semi-automatic vehicle frame Combination Welding frock | |
CN210191685U (en) | Front end module auxiliary fixtures structure | |
CN202804538U (en) | Welding jig for car protective fence | |
CN211572638U (en) | T-shaped beam stirrup framework building device | |
CN105689546A (en) | Car frame front longitudinal beam bending die for aluminum tank car and machining method of die | |
CN103894771B (en) | A kind of being applicable to carries the General welding clamp that underframe manufactures entirely | |
CN205519237U (en) | Automobile -used frame front longitudinal of aluminum can mould of bending | |
CN204546052U (en) | A kind of fixture for the processing of small end of connecting rod aperture | |
CN212444115U (en) | Tool for punching end wall of stainless steel city rail car body | |
CN114799676A (en) | Automobile boom standard section assembling and welding precise positioning tool and assembling and forming method thereof | |
CN207043627U (en) | A kind of ground plane tests fuel tank welding tooling | |
CN207668792U (en) | A kind of manual welding fixture | |
CN221735236U (en) | Assembling and welding platform for X-shaped box body of base of grabbing machine | |
CN213916840U (en) | Welding positioning device for passenger car frame | |
CN220445503U (en) | Non-bearing type vehicle body assembly welding tool |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |