CN113118658A - Bridge steel structure installation and construction method - Google Patents
Bridge steel structure installation and construction method Download PDFInfo
- Publication number
- CN113118658A CN113118658A CN202110451729.0A CN202110451729A CN113118658A CN 113118658 A CN113118658 A CN 113118658A CN 202110451729 A CN202110451729 A CN 202110451729A CN 113118658 A CN113118658 A CN 113118658A
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- frame
- steel structure
- clamping
- rotating
- feeding
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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
- B23K37/0443—Jigs
-
- 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
- B23K31/02—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 soldering or welding
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a bridge steel structure installation construction method, which uses steel structure welding equipment, wherein the steel structure welding equipment comprises a base, a bottom frame clamping device and an auxiliary butt joint device, wherein the bottom frame clamping device is arranged on the inner wall of the lower end of the base, and the auxiliary butt joint device is arranged on the left side of the upper end of the base; according to the invention, by designing the fixed clamping structure capable of assisting the bottom frame to feed, the problems that the time and labor are wasted when the alignment and adjustment are carried out manually, especially the bridge steel structure is heavy and the alignment adjustment is difficult to be carried out manually are solved; the invention designs a structure for driving the bottom frame to feed in a fixed length manner, so that the bottom frame moves to a welding position in a fixed length manner and the welding operation of a plurality of support frames is automatically completed.
Description
Technical Field
The invention belongs to the technical field of steel structure installation, and particularly relates to a bridge steel structure installation construction method.
Background
The bridge steel structure takes steel as a main building material, has high strength and high rigidity, and can reduce the height and the self weight of the bridge relative to a concrete bridge. The steel bridge is manufactured in a factory, spliced in a construction site, short in construction period, convenient to process and free of seasonal influence. Therefore, the bridge steel structure is being widely applied in China.
The following problems often exist in the installation process of the existing special steel structure: firstly, the alignment and adjustment are performed manually, which is time-consuming and labor-consuming, and particularly, the bridge steel structure is heavy and is difficult to perform effective alignment adjustment manually; second, the in-process of current equipment at the building site on-the-spot equipment of building site, often can not be automatic install a plurality of support frames one by one, still need the manpower to counterpoint a plurality of support frames and underframe to cause excessive loss manpower and work efficiency low scheduling problem.
Disclosure of Invention
The invention aims to provide a bridge steel structure installation construction method which has the advantages of assisting in alignment, fixing length feeding and the like and solves the problems.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose: a bridge steel structure installation and construction method uses steel structure welding equipment, the steel structure welding equipment comprises a base, a bottom frame clamping device and an auxiliary butt joint device, and the installation and construction method for the bridge steel structure by adopting the steel structure welding equipment further comprises the following steps:
s1, equipment checking: before the steel structure welding equipment runs, the steel structure welding equipment is subjected to conventional inspection and test running manually;
s2, fixing operation: carrying out fixed clamping operation on the bottom frame through a bottom frame clamping device;
s3, alignment feeding: fixing the support frame through an auxiliary butt joint device, positioning the support frame and the bottom frame, and driving the bottom frame to feed for a fixed distance;
s4, welding operation: welding the support frame and the bottom frame into a whole in a manual or mechanical auxiliary mode;
a bottom frame clamping device is arranged on the inner wall of the lower end of the base, and an auxiliary butt joint device is arranged on the left side of the upper end of the base; the underframe clamping device fixes the underframe, the auxiliary butt joint device fixes the support frame, the support frame and the underframe are positioned, and then the underframe is driven to feed a fixed distance to a welding position.
The bottom frame clamping device comprises a clamping frame, threaded columns, a rotating hand wheel, a downward pressing feeding plate, a clamping positioning plate, a rotating compression roller and an extrusion mechanism, wherein the clamping frame is symmetrically arranged on the left side and the right side of the inner wall of the lower end of the base; twist through the manual work and move the rotation hand wheel to drive the centre gripping locating plate through the screw thread post and the cooperation of pushing down between the feed plate, rotate the compression roller and make the underframe can be driven by supplementary interfacing apparatus and feed under by fixed state, extrusion mechanism makes the underframe location placed in the middle, thereby makes support frame and underframe location butt joint.
The auxiliary butt joint device comprises an auxiliary frame, a moving mechanism, a feeding frame, a driving cylinder, a pushing block, a fixed seat, a connecting mechanism, a baffle plate and a clamping plate, wherein the auxiliary frame is arranged on the left side of the upper end of the base; the moving mechanism enables the feeding frame to feed along a fixed track, the fixing seat supports and fixes the supporting frame, the clamping plate fixes and clamps the supporting frame through the rubber clamping pad, and after the supporting frame and the bottom frame are welded, the driving cylinder drives the fixing seat to feed leftwards, so that the clamping plate is unlocked in a clamping plate rotating mode, and after the supporting frame is separated from the fixing seat, the clamping plate is driven to reset through the torsion spring.
The moving mechanism comprises a guide rail, an electric slider, a rotating slider, a guide post and a lifting sliding table, wherein the guide rail is arranged on the inner wall of the left end of the auxiliary frame, the electric slider is connected with the guide rail in a sliding mode, the right end of the electric slider is provided with the rotating slider through a bearing, the guide post is erected between the inner walls of the upper end and the lower end of the auxiliary frame, the lifting sliding table is connected with the guide post in a sliding mode, the rotating slider is connected with the lifting sliding table in a sliding mode, and the right end of the rotating slider is provided with a feeding frame. The electric slide block is fed along the guide track. Thereby the feeding frame is driven to feed along the guide track under the condition of vertical downward through the mutual matching between the rotating slide block and the lifting slide table.
As a preferred scheme of the invention, the lower end of the clamping positioning plate is uniformly provided with a roller groove from front to back, and the inner walls of the left end and the right end of the roller groove are provided with rotating compression rollers through bearings.
As a preferable scheme of the invention, the upper end of the threaded column is provided with a rotating hand wheel, and the rotating hand wheel is used for driving the downward pressing feed plate to move up and down.
As a preferred scheme of the invention, the extrusion mechanism comprises a guide rod, a feeding column, a return spring and a rotating pinch roller, wherein the inner walls of the upper end and the lower end of the extrusion groove are symmetrically provided with guide grooves, the guide rod is erected between the inner walls of the left end and the right end of the guide groove, the feeding column is connected with the guide rod in a sliding mode, the outer wall of the feeding column is provided with the rotating pinch roller in a rotating mode, and the end, far away from the feeding column, of the feeding column is provided with the return spring. The rotating pinch roller is pushed to feed inwards through the reset paralysis, so that the bottom frame is positioned to the central position through the rotating pinch roller, and the bottom frame is aligned with the support frame.
As a preferred scheme of the invention, the reset spring is sleeved on the outer wall of the guide rod and used for providing extrusion force for the rotating pinch roller.
As a preferable scheme of the invention, the clamping plate is connected with the inner walls of the front end and the rear end of the clamping groove through torsion springs.
As a preferable scheme of the invention, the near ends of the baffle plate and the clamping plate are provided with rubber clamping pads, and the rubber clamping pads are used for increasing the extrusion degree of the supporting frame.
As a preferable scheme of the invention, the connecting mechanism comprises a sliding rod, an auxiliary spring and a material pushing block, the left end of the fixed seat is provided with a butt joint groove, the sliding rod is arranged between the inner walls of the upper end and the lower end of the butt joint groove, the pushing block is connected with the sliding rod in a sliding mode, the upper end of the pushing block is provided with the auxiliary spring, and the lower end of the fixed seat is provided with the material pushing block. Due to the weight of the supporting frame, the fixing seat is driven to move downwards through the extrusion auxiliary spring, and therefore the material pushing block pushes the bottom frame to feed for a fixed distance.
The invention has the beneficial effects that:
1. according to the invention, by designing the fixed clamping structure capable of assisting the bottom frame to feed, the problems that the time and labor are wasted when the alignment and adjustment are carried out manually, especially the bridge steel structure is heavy and the alignment adjustment is difficult to be carried out manually are solved; the invention designs a structure for driving the bottom frame to feed in a fixed length manner, so that the bottom frame moves to a welding position in a fixed length manner and the welding operation of a plurality of support frames is automatically completed.
2. The feeding frame is fed along a fixed track through the arranged moving mechanism, the supporting frame is supported and fixed by the fixing seat, the supporting frame is fixedly clamped by the clamping plate through the rubber clamping pad, and meanwhile, after the supporting frame and the bottom frame are welded, the fixing seat is driven to drive the fixing cylinder to feed leftwards, so that the supporting frame is unlocked in a rotating mode of the clamping plate, and after the supporting frame is separated from the fixing seat, the clamping plate is driven to reset through the torsion spring.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a process flow diagram of the construction method for installing a bridge steel structure according to the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of the bottom frame clamping device of the present invention;
FIG. 4 is a schematic structural diagram of an auxiliary docking unit according to the present invention;
FIG. 5 is a partial structural view of the moving mechanism of the present invention;
fig. 6 is a structural schematic view of a bridge steel structure to which the present invention is directed.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
As shown in fig. 1 to 6, a method for installing and constructing a bridge steel structure uses a steel structure welding device, the steel structure welding device includes a base 1, a bottom frame clamping device 2 and an auxiliary docking device 3, and the method for installing and constructing the bridge steel structure by using the steel structure welding device further includes the following steps:
s1, equipment checking: before the steel structure welding equipment runs, the steel structure welding equipment is subjected to conventional inspection and test running manually;
s2, fixing operation: the bottom frame is fixedly clamped by the bottom frame clamping device 2;
s3, alignment feeding: the supporting frame is fixed through the auxiliary butt joint device 3, then the supporting frame and the bottom frame are positioned, and then the bottom frame is driven to feed for a fixed distance;
s4, welding operation: welding the support frame and the bottom frame into a whole in a manual or mechanical auxiliary mode;
a bottom frame clamping device 2 is arranged on the inner wall of the lower end of the base 1, and an auxiliary butt joint device 3 is arranged on the left side of the upper end of the base 1; underframe clamping device 2 carries out fixed centre gripping with the underframe, and supplementary interfacing apparatus 3 is fixed the support frame, fixes a position support frame and underframe again, then drives the underframe and feeds fixed distance to weld position.
The bottom frame clamping device 2 comprises a clamping frame 21, threaded columns 22, a rotating hand wheel 23, a downward pressing feed plate 24, a clamping positioning plate 25, a rotating compression roller 26 and an extrusion mechanism 27, wherein the clamping frame 21 is symmetrically arranged on the left side and the right side of the inner wall of the lower end of the base 1, a downward pressing groove and an extrusion groove are sequentially formed in the close end of the clamping frame 21 from top to bottom, the threaded columns 22 are arranged on the inner wall of the lower end of the downward pressing groove through bearings, the downward pressing feed plate 24 is connected with the downward pressing groove through a sliding mode, the downward pressing feed plate 24 is connected with the threaded columns 22 through a threaded connection mode, the clamping positioning plate 25 is symmetrically arranged in the front and at the back of the close end of the downward pressing feed; the lower end of the clamping positioning plate 25 is uniformly provided with a rotary roller groove from front to back, and the inner walls of the left end and the right end of the rotary roller groove are provided with rotary compression rollers 26 through bearings. The upper end of the threaded column 22 is provided with a rotating hand wheel 23, and the rotating hand wheel 23 is used for driving the downward movement of the downward pressing feeding plate 24. Through manual twisting rotation hand wheel 23 to drive centre gripping locating plate 25 through the cooperation between screw thread post 22 and the push down feed plate 24, rotate compression roller 26 and make the underframe can be driven by supplementary interfacing apparatus 3 and feed under by fixed state, extrusion mechanism 27 makes the underframe fix a position between two parties, thereby makes the support frame dock with the underframe location.
The extrusion mechanism 27 comprises a guide rod 271, a feeding column 272, a reset spring 273 and a rotating pinch roller 274, wherein guide grooves are symmetrically formed in the inner walls of the upper end and the lower end of each extrusion groove, the guide rod 271 is erected between the inner walls of the left end and the right end of each guide groove, the feeding column 272 is connected with the guide rod 271 in a sliding mode, the rotating pinch roller 274 is arranged on the outer wall of the feeding column 272 in a rotating mode, and the reset spring 273 is arranged at the end, far away from the feeding column 272, of the feeding column 272. The reset spring 273 is sleeved on the outer wall of the guide rod 271, and the reset spring 273 is used for providing extrusion force for the rotating pinch roller 274. The rotating pinch roller 274 is pushed by the return spring 273 to be fed inwards, so that the bottom frame is positioned to the central position by rotating the pinch roller 274, and is aligned with the support frame.
The auxiliary butt joint device 3 comprises an auxiliary frame 31, a moving mechanism 32, a feeding frame 33, a driving cylinder 34, a pushing block 35, a fixed seat 36, a connecting mechanism 37, a baffle plate 38 and a clamping plate 39, wherein the auxiliary frame 31 is arranged on the left side of the upper end of the base 1, the moving mechanism 32 is arranged on the inner wall of the left end of the auxiliary frame 31, the feeding frame 33 is arranged at the right end of the moving mechanism 32, the pushing block 35 is arranged at the right end of the feeding frame 33, the pushing block 35 is connected with the fixed seat 36 through the connecting mechanism 37, the baffle plate 38 is arranged on the left side of the upper end of the fixed seat 36, a clamping groove is formed in the right end of the fixed seat 36, and the clamping plate; the clamping plate 39 is connected with the inner walls of the front end and the rear end of the clamping groove through a torsion spring. The adjacent ends of the baffle plate 38 and the clamping plate 39 are provided with rubber clamping pads which are used for increasing the extrusion pressure degree of the support frame. The moving mechanism 32 enables the feeding frame 33 to feed along a fixed track, the fixing seat 36 supports and fixes the supporting frame, the clamping plate 39 fixes and clamps the supporting frame through a rubber clamping pad, and after the supporting frame and the bottom frame are welded, the driving cylinder 34 drives the fixing seat 36 to feed leftwards, so that the clamping plate 39 is unlocked in a rotating mode, and after the supporting frame is separated from the fixing seat 36, the clamping plate 39 is driven to reset through the torsion spring.
The moving mechanism 32 comprises a guide rail 321, an electric slider 322, a rotating slider 323, a guide post 324 and a lifting sliding table 325, the guide rail 321 is arranged on the inner wall of the left end of the auxiliary frame 31, the electric slider 322 is connected with the guide rail 321 in a sliding mode, the rotating slider 323 is arranged at the right end of the electric slider 322 through a bearing, the guide post 324 is erected between the inner walls of the upper end and the lower end of the auxiliary frame 31, the lifting sliding table 325 is connected with the guide post 324 in a sliding mode, the rotating slider 323 is connected with the lifting sliding table 325 in a sliding mode, and the feeding frame 33 is arranged at the right end of the rotating slider 323. The electric slider 322 is fed along the guide rail 321. So that the feeding frame 33 is fed vertically downward along the guide rail 321 by the cooperation between the rotating slider 323 and the elevating slide table 325.
The connecting mechanism 37 include slide bar 371, assist spring 372 and ejector pad 373, the butt joint groove has been seted up to fixing base 36 left end, is provided with slide bar 371 between the upper and lower both ends inner wall of butt joint groove, pushes piece 35 and is connected with slide bar 371 through the slip mode, pushes piece 35 upper end and is provided with assist spring 372, the fixing base 36 lower extreme is provided with ejector pad 373. Due to the weight of the supporting frame, the fixing seat 36 is driven to move downwards by the extrusion auxiliary spring 372, so that the pushing block 373 pushes the bottom frame to feed for a fixed distance.
The present invention is not limited to the above-described embodiments, which are described in the specification and illustrated only to illustrate the principle of the present invention, but various changes and modifications may be made within the scope of the present invention as claimed without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a bridge steel structure installation construction method, it has used steel construction welding equipment, and this steel construction welding equipment includes base (1), underframe clamping device (2) and supplementary interfacing apparatus (3), its characterized in that: the installation and construction method for the bridge steel structure by adopting the steel structure welding equipment further comprises the following steps:
s1, equipment checking: before the steel structure welding equipment runs, the steel structure welding equipment is subjected to conventional inspection and test running manually;
s2, fixing operation: the bottom frame is fixedly clamped through a bottom frame clamping device (2);
s3, alignment feeding: the supporting frame is fixed through the auxiliary butt joint device (3), then the supporting frame and the bottom frame are positioned, and then the bottom frame is driven to feed for a fixed distance;
s4, welding operation: welding the support frame and the bottom frame into a whole in a manual or mechanical auxiliary mode;
a bottom frame clamping device (2) is arranged on the inner wall of the lower end of the base (1), and an auxiliary butt joint device (3) is arranged on the left side of the upper end of the base (1);
the bottom frame clamping device (2) comprises a clamping frame (21), threaded columns (22), a rotating hand wheel (23), a downward pressing feeding plate (24), a clamping positioning plate (25), a rotating compression roller (26) and an extrusion mechanism (27), wherein the clamping frame (21) is symmetrically arranged on the left side and the right side of the inner wall of the lower end of the base (1), a downward pressing groove and an extrusion groove are sequentially formed in the close end of the clamping frame (21) from top to bottom, the threaded columns (22) are arranged on the inner wall of the lower end of the downward pressing groove through bearings, the downward pressing feeding plate (24) is connected with the downward pressing groove in a sliding mode, the downward pressing feeding plate (24) is connected with the threaded columns (22) in a threaded connection mode, the clamping positioning plate (25) is symmetrically arranged in the front and back of the close end of the downward pressing feeding plate (24;
the auxiliary butt joint device (3) comprises an auxiliary frame (31), a moving mechanism (32), a feeding frame (33), a driving cylinder (34), a pushing block (35), a fixed seat (36), a connecting mechanism (37), a baffle plate (38) and a clamping plate (39), wherein the auxiliary frame (31) is arranged on the left side of the upper end of the base (1), the moving mechanism (32) is arranged on the inner wall of the left end of the auxiliary frame (31), the feeding frame (33) is arranged at the right end of the moving mechanism (32), the pushing block (35) is arranged at the right end of the feeding frame (33), the pushing block (35) is connected with the fixed seat (36) through the connecting mechanism (37), the baffle plate (38) is arranged on the left side of the upper end of the fixed seat (36), the clamping groove is formed in the right end of the fixed seat (36), and the clamping plate (39) is;
the moving mechanism (32) comprises a guide rail (321), an electric sliding block (322), a rotating sliding block (323), a guide post (324) and a lifting sliding table (325), wherein the guide rail (321) is arranged on the inner wall of the left end of the auxiliary frame (31), the electric sliding block (322) is connected with the guide rail (321) in a sliding mode, the right end of the electric sliding block (322) is provided with the rotating sliding block (323) through a bearing, the guide post (324) is erected between the inner walls of the upper end and the lower end of the auxiliary frame (31), the lifting sliding table (325) is connected with the guide post (324) in a sliding mode, the rotating sliding block (323) is connected with the lifting sliding table (325) in a sliding mode, and the right end of the rotating sliding block (323) is provided.
2. The bridge steel structure installation and construction method according to claim 1, characterized in that: the lower end of the clamping positioning plate (25) is uniformly provided with a rotary roller groove from front to back, and the inner walls of the left end and the right end of the rotary roller groove are provided with rotary compression rollers (26) through bearings.
3. The bridge steel structure installation and construction method according to claim 1, characterized in that: the upper end of the threaded column (22) is provided with a rotating hand wheel (23), and the rotating hand wheel (23) is used for driving the downward movement of the downward pressing feed plate (24).
4. The bridge steel structure installation and construction method according to claim 1, characterized in that: the extrusion mechanism (27) comprises a guide rod (271), a feeding column (272), a reset spring (273) and a rotating pinch wheel (274), guide grooves are symmetrically formed in the inner walls of the upper end and the lower end of each extrusion groove, the guide rod (271) is erected between the inner walls of the left end and the right end of each guide groove, the feeding column (272) is connected with the guide rod (271) in a sliding mode, the rotating pinch wheel (274) is arranged on the outer wall of the feeding column (272) in a rotating mode, and the reset spring (273) is arranged at one end, far away from the feeding column (272).
5. The bridge steel structure installation and construction method according to claim 4, wherein: reset spring (273) cover establish on guide bar (271) outer wall, reset spring (273) are used for providing the extrusion force to rotating pinch roller (274).
6. The bridge steel structure installation and construction method according to claim 1, characterized in that: the clamping plate (39) is connected with the inner walls of the front end and the rear end of the clamping groove through a torsion spring.
7. The bridge steel structure installation and construction method according to claim 1, characterized in that: the adjacent ends of the stop plate (38) and the clamping plate (39) are provided with rubber clamping pads, and the rubber clamping pads are used for increasing the extrusion pressure degree of the supporting frame.
8. The bridge steel structure installation and construction method according to claim 1, characterized in that: coupling mechanism (37) including slide bar (371), assist spring (372) and ejector pad (373), the butt joint groove has been seted up to fixing base (36) left end, be provided with slide bar (371) between the upper and lower both ends inner wall in butt joint groove, push block (35) are connected with slide bar (371) through the slip mode, push block (35) upper end is provided with assist spring (372), fixing base (36) lower extreme is provided with ejector pad (373).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110451729.0A CN113118658A (en) | 2021-04-26 | 2021-04-26 | Bridge steel structure installation and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110451729.0A CN113118658A (en) | 2021-04-26 | 2021-04-26 | Bridge steel structure installation and construction method |
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| Publication Number | Publication Date |
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| CN113118658A true CN113118658A (en) | 2021-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110451729.0A Withdrawn CN113118658A (en) | 2021-04-26 | 2021-04-26 | Bridge steel structure installation and construction method |
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| Country | Link |
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| CN (1) | CN113118658A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117324870A (en) * | 2023-11-21 | 2024-01-02 | 中铁五局集团第二工程有限责任公司 | Steel structure prefabricated bridge construction welding method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1237409B (en) * | 1961-03-23 | 1967-03-23 | Pullmax Ab | Device for welding, in particular arc welding, of supports made of sheet metal |
| CN111266771A (en) * | 2020-03-27 | 2020-06-12 | 朱增 | Intelligent metal pipe fitting machining equipment |
| CN211361169U (en) * | 2019-12-23 | 2020-08-28 | 武汉海腾钢结构工程有限公司 | Efficient welding tool for bridge guardrail stand column |
| CN111958166A (en) * | 2020-08-26 | 2020-11-20 | 郑付梅 | Welding connection method for power lithium battery pack units |
| CN112643192A (en) * | 2020-12-17 | 2021-04-13 | 汤鹏飞 | High-precision laser welding process |
-
2021
- 2021-04-26 CN CN202110451729.0A patent/CN113118658A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1237409B (en) * | 1961-03-23 | 1967-03-23 | Pullmax Ab | Device for welding, in particular arc welding, of supports made of sheet metal |
| CN211361169U (en) * | 2019-12-23 | 2020-08-28 | 武汉海腾钢结构工程有限公司 | Efficient welding tool for bridge guardrail stand column |
| CN111266771A (en) * | 2020-03-27 | 2020-06-12 | 朱增 | Intelligent metal pipe fitting machining equipment |
| CN111958166A (en) * | 2020-08-26 | 2020-11-20 | 郑付梅 | Welding connection method for power lithium battery pack units |
| CN112643192A (en) * | 2020-12-17 | 2021-04-13 | 汤鹏飞 | High-precision laser welding process |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117324870A (en) * | 2023-11-21 | 2024-01-02 | 中铁五局集团第二工程有限责任公司 | Steel structure prefabricated bridge construction welding method |
| CN117324870B (en) * | 2023-11-21 | 2024-03-08 | 中铁五局集团第二工程有限责任公司 | Steel structure prefabricated bridge construction welding method |
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Application publication date: 20210716 |