CN113523688A - On-site welding tool for travelling I-shaped beam and assembling and welding method thereof - Google Patents
On-site welding tool for travelling I-shaped beam and assembling and welding method thereof Download PDFInfo
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- CN113523688A CN113523688A CN202110853298.0A CN202110853298A CN113523688A CN 113523688 A CN113523688 A CN 113523688A CN 202110853298 A CN202110853298 A CN 202110853298A CN 113523688 A CN113523688 A CN 113523688A
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- positioning wedge
- flange plate
- wedge block
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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
-
- 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
- B23K37/02—Carriages for supporting the welding or cutting element
-
- 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
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0211—Carriages for supporting the welding or cutting element travelling on a guide member, e.g. rail, track
-
- 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
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a field welding tool for a travelling crane walking I-shaped beam and an assembling and welding method thereof, which solve the problem that a flange plate is easy to deform when a web plate and the flange plate of the travelling crane walking I-shaped beam are welded. The lower flange plate (2) is sleeved with a deformation-resistant clamp plate (3), the top surface of the deformation-resistant clamp plate (3) is provided with an inverted T-shaped groove (7), the bottom surface of the inverted T-shaped groove (7) is respectively provided with a left positioning wedge block embedding groove (8), a middle positioning wedge block embedding groove (9) and a right positioning wedge block embedding groove (10), wedge blocks are respectively arranged in the three grooves, and the upper top surface of each wedge block is abutted to the lower bottom surface of the lower flange plate (2); along the longitudinal direction of the web (1), anti-deformation clamp plates (3) are sleeved on the lower flange plate (2) at intervals. The welding deformation of the flange plate is greatly reduced, and the subsequent straightening of the welded I-shaped beam is omitted.
Description
Technical Field
The invention relates to a welding tool, in particular to a field welding tool for an I-shaped beam for traveling of a traveling crane for a steam turbine room of a thermal power plant and an assembling and welding method of the tool.
Background
In the equipment installation of a steam turbine machine room of a newly-built thermal power plant, a crane beam for travelling is required to be arranged at the top end in the machine room, the crane beam is an I-shaped beam and is generally processed, welded and manufactured by steel plates on site, and the site manufacturing process is as follows: firstly, respectively processing a web plate, an upper flange plate and a lower flange plate of the I-shaped beam by using steel plates, spot-welding the three steel plates together to form the I-shaped beam, and finally, performing groove connection welding of welding seams at two sides at the joint of the upper flange plate and the web plate by using a welding machine; when groove welding is carried out, because the flange plate outside the welding seam is narrow and the welding heat is large, the flange plate outside the welding seam is deformed and warped by heating when welding frequently occurs, so that the flatness of the flange plate can not meet the requirement of installing a track on the flange plate in the later period, and a large amount of straightening work is required in the later period; how to overcome the problem of welding deformation of the flange plate and the web plate becomes a difficult problem to be solved on site.
Disclosure of Invention
The invention provides a field welding tool for a travelling crane walking I-shaped beam and an assembling and welding method thereof, which solve the technical problem that a flange plate is easy to deform when a web plate and the flange plate of the travelling crane walking I-shaped beam are welded.
The invention solves the technical problems by the following technical scheme:
the general concept of the invention is: manufacturing a deformation-resistant fixture plate by using a steel plate, processing an inverted T-shaped groove on the upper top surface of the deformation-resistant fixture plate, clamping the deformation-resistant fixture plate with the inverted T-shaped groove on the welded flange plate before welding the flange plate and a web plate, embedding the whole flange plate into the inverted T-shaped groove, limiting and supporting the flange plate by using a straight groove body in the inverted T-shaped groove, and performing anti-deformation effect on the flange plate in the welding process; and the anti-deformation clamp plates are arranged on the whole welded flange plate at equal intervals along the longitudinal direction of the web plate, so that a better anti-deformation effect is achieved.
A field welding tool for a travelling I-shaped beam in a steam turbine room comprises a web plate, a lower flange plate and an upper flange plate, wherein the web plate, the lower flange plate and the upper flange plate are connected into the I-shaped beam through spot welding, a deformation-resistant clamp plate is sleeved on the lower flange plate, an inverted T-shaped groove is formed in the top surface of the deformation-resistant clamp plate, a left positioning wedge block embedding groove, a middle positioning wedge block embedding groove and a right positioning wedge block embedding groove are respectively formed in the bottom surface of the inverted T-shaped groove, a left positioning wedge block is arranged in the left positioning wedge block embedding groove, the upper top surface of the left positioning wedge block abuts against the lower bottom surface of the lower flange plate, a middle positioning wedge block is arranged in the middle positioning wedge block embedding groove, the upper top surface of the middle positioning wedge block abuts against the lower bottom surface of the lower flange plate, and the right positioning wedge block is embedded in the right positioning wedge block, a right positioning wedge block is arranged, and the upper top surface of the right positioning wedge block is abutted against the lower bottom surface of the lower flange plate; along the longitudinal direction of the web plate, anti-deformation clamp plates are sleeved on the lower flange plate at intervals.
The I-shaped beams are obliquely abutted against one side edge of an inverted T-shaped support, a left welding machine walking track and a right welding machine walking track are respectively arranged on two sides of the inverted T-shaped support, and a welding machine for performing groove welding on a left welding seam between a web plate and a lower flange plate is arranged on the left welding machine walking track.
An assembling and welding method for a traveling crane walking I-shaped beam in a steam turbine room is characterized by comprising the following steps:
firstly, processing an anti-deformation fixture plate on site by using a steel plate, processing an inverted T-shaped groove on the upper top surface of the anti-deformation fixture plate, enabling the height of the inverted T-shaped groove to be equal to the thickness of a lower flange plate, and respectively processing a left positioning wedge block embedding groove, a middle positioning wedge block embedding groove and a right positioning wedge block embedding groove on the groove bottom surface of the inverted T-shaped groove; manufacturing a left positioning wedge block, a middle positioning wedge block and a right positioning wedge block which are in wedge shapes;
secondly, spot welding the web plate, the lower flange plate and the upper flange plate to form an I-shaped beam;
thirdly, along the longitudinal direction of the web plate, the lower flange plate is sleeved with anti-deformation clamp plates at equal intervals, a left positioning wedge block on each anti-deformation clamp plate is embedded into the groove to be wedged with a left positioning wedge block, the upper top surface of the left positioning wedge block is abutted against the lower bottom surface of the lower flange plate, a middle positioning wedge block is wedged into the middle positioning wedge block embedding groove by the same method, the upper top surface of the middle positioning wedge block is abutted against the lower bottom surface of the lower flange plate, a right positioning wedge block is wedged into the right positioning wedge block embedding groove, and the upper top surface of the right positioning wedge block is abutted against the lower bottom surface of the lower flange plate; the deformation-resistant fixture plate and the lower flange plate are firmly fixed together through wedging of the three positioning wedge blocks;
fourthly, spot welding the fixed anti-deformation fixture plates to form an I-shaped beam which is obliquely abutted against the left side edge of the inverted T-shaped bracket;
fifthly, arranging an automatic walking welding machine on a walking track of the left welding machine, starting the automatic walking welding machine, and performing groove welding on a left welding seam between the web plate and the lower flange plate;
and sixthly, hoisting the I-shaped beam subjected to left weld joint welding to abut against the right side edge of the inverted T-shaped support, transferring the automatic walking welding machine to a walking track of a right welding machine, starting the automatic walking welding machine, and performing groove welding on the right weld joint between the web plate and the lower flange plate.
The invention utilizes the leftover materials of the on-site steel plates to manufacture the anti-deformation clamp plates, and utilizes the wedge blocks to fix the clamp plates and the flange plates together, so that the inverted T-shaped grooves in the clamp plates form the anti-deformation support for the flange plates, thereby greatly reducing the welding deformation of the flange plates, saving the subsequent straightening of I-shaped beams after welding, saving the cost for purchasing a steel beam straightener, and having simple tool structure, easy operation and low cost.
Drawings
FIG. 1 is a view showing the fitting relationship between an I-beam and a deformation-resistant jig plate (3) according to the present invention;
fig. 2 is a schematic structural view of the deformation-resistant jig plate 3 of the present invention;
fig. 3 is a schematic structural view of the intermediate positioning wedge 5 of the present invention;
FIG. 4 is a schematic structural view of the left positioning wedge 4 of the present invention;
FIG. 5 is a schematic structural diagram of the invention when the flange plate and the web plate are welded.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
a field welding tool for a travelling I-shaped beam in a steam turbine room comprises a web plate 1, a lower flange plate 2 and an upper flange plate, wherein the web plate 1, the lower flange plate 2 and the upper flange plate are connected into the I-shaped beam through spot welding, a deformation-resistant clamping plate 3 is sleeved on the lower flange plate 2, an inverted T-shaped groove 7 is formed in the top surface of the deformation-resistant clamping plate 3, a left positioning wedge block embedding groove 8, a middle positioning wedge block embedding groove 9 and a right positioning wedge block embedding groove 10 are respectively formed in the bottom surface of the inverted T-shaped groove 7, a left positioning wedge block 4 is arranged in the left positioning wedge block embedding groove 8, the upper top surface of the left positioning wedge block 4 abuts against the lower bottom surface of the lower flange plate 2, a middle positioning wedge block 5 is arranged in the middle positioning wedge block embedding groove 9, the upper top surface of the middle positioning wedge block 5 abuts against the lower bottom surface of the lower flange plate 2, the right positioning wedge block is embedded into the groove 10 and provided with a right positioning wedge block 6, and the upper top surface of the right positioning wedge block 6 is abutted against the lower bottom surface of the lower flange plate 2; along the longitudinal direction of the web plate 1, anti-deformation clamp plates 3 are sleeved on the lower flange plate 2 at intervals; the left positioning wedge block 4 and the right positioning wedge block 6 have the same structure and the same size, are smaller than the middle positioning wedge block 5, and are embedded into the groove 9 and arranged right below the web plate 1.
The I-shaped beams which are connected together by spot welding and are sleeved with the anti-deformation clamp plates 3 at intervals on the lower flange plate 2 are obliquely abutted against one side edge of an inverted T-shaped support 12 so as to facilitate welding of a left welding seam 11, a left welding machine walking track 13 and a right welding machine walking track 14 are respectively arranged on two sides of the inverted T-shaped support 12, and a welding machine for performing groove welding on the left welding seam 11 between the web plate 1 and the lower flange plate 2 is arranged on the left welding machine walking track 13.
An assembling and welding method for a traveling crane walking I-shaped beam in a steam turbine room is characterized by comprising the following steps:
firstly, processing an anti-deformation fixture plate 3 on site by using a steel plate, processing an inverted T-shaped groove 7 on the upper top surface of the anti-deformation fixture plate 3 to enable the height of the inverted T-shaped groove 7 to be equal to the thickness of a lower flange plate 2, and respectively processing a left positioning wedge block embedding groove 8, a middle positioning wedge block embedding groove 9 and a right positioning wedge block embedding groove 10 on the groove bottom surface of the inverted T-shaped groove 7; manufacturing a left positioning wedge block 4, a middle positioning wedge block 5 and a right positioning wedge block 6 which are in wedge shapes;
secondly, spot welding the web plate 1, the lower flange plate 2 and the upper flange plate to form an I-shaped beam;
thirdly, along the longitudinal direction of the web plate 1, the lower flange plate 2 is sleeved with the anti-deformation clamp plates 3 at equal intervals, the left positioning wedge block 4 on each anti-deformation clamp plate 3 is embedded into the groove 8 to wedge the left positioning wedge block 4, the upper top surface of the left positioning wedge block 4 is abutted against the lower bottom surface of the lower flange plate 2, the middle positioning wedge block 5 is wedged into the middle positioning wedge block embedding groove 9 by the same method, the upper top surface of the middle positioning wedge block 5 is abutted against the lower bottom surface of the lower flange plate 2, the right positioning wedge block 6 is wedged into the right positioning wedge block embedding groove 10, and the upper top surface of the right positioning wedge block 6 is abutted against the lower bottom surface of the lower flange plate 2; the deformation-resistant fixture plate 3 and the lower flange plate 2 are firmly fixed together through wedging of the three positioning wedge blocks;
fourthly, spot welding the fixed anti-deformation clamp plates 3 to form an I-shaped beam which is obliquely abutted against the left side edge of the inverted T-shaped bracket 12;
fifthly, arranging an automatic walking welding machine on a walking track 13 of the left welding machine, starting the automatic walking welding machine, and performing groove welding on a left welding seam 11 between the web plate 1 and the lower flange plate 2;
and sixthly, hoisting the I-shaped beam welded with the left welding seam 11 to abut against the right side edge of the inverted T-shaped support 12, transferring the automatic walking welding machine to a walking rail 14 of a right welding machine, starting the automatic walking welding machine, and performing groove welding on a right welding seam 15 between the web plate 1 and the lower flange plate 2.
Claims (3)
1. A field welding tool for a travelling I-shaped beam in a steam turbine room comprises a web plate (1), a lower flange plate (2) and an upper flange plate, wherein the web plate (1), the lower flange plate (2) and the upper flange plate are connected into the I-shaped beam through spot welding, and the field welding tool is characterized in that a deformation-resistant clamp plate (3) is sleeved on the lower flange plate (2), an inverted T-shaped groove (7) is formed in the top surface of the deformation-resistant clamp plate (3), a left positioning wedge embedding groove (8), a middle positioning wedge embedding groove (9) and a right positioning wedge embedding groove (10) are respectively arranged on the bottom surface of the inverted T-shaped groove (7), a left positioning wedge (4) is arranged in the left positioning wedge embedding groove (8), the upper top surface of the left positioning wedge (4) abuts against the bottom surface of the lower flange plate (2), and the middle positioning wedge is embedded in the groove (9), the upper top surface of the middle positioning wedge block (5) is abutted against the lower bottom surface of the lower flange plate (2), the right positioning wedge block (6) is arranged in the right positioning wedge block embedding groove (10), and the upper top surface of the right positioning wedge block (6) is abutted against the lower bottom surface of the lower flange plate (2); along the longitudinal direction of the web (1), anti-deformation clamp plates (3) are sleeved on the lower flange plate (2) at intervals.
2. The field welding tool for the travelling I-shaped beam in the steam turbine room is characterized in that the I-shaped beams connected together by spot welding of anti-deformation clamp plates (3) are sleeved on the lower flange plate (2) at intervals and obliquely lean against one side edge of an inverted T-shaped support (12), a left welding machine travelling rail (13) and a right welding machine travelling rail (14) are respectively arranged on two sides of the inverted T-shaped support (12), and a welding machine for performing groove welding on a left welding seam (11) between the web plate (1) and the lower flange plate (2) is arranged on the left welding machine travelling rail (13).
3. The assembling and welding method for the traveling I-shaped beam in the steam turbine room, according to claim 1, is characterized by comprising the following steps:
firstly, machining a deformation-resistant fixture plate (3) on site by using a steel plate, machining an inverted T-shaped groove (7) on the upper top surface of the deformation-resistant fixture plate (3), enabling the height of the inverted T-shaped groove (7) to be equal to the thickness of a lower flange plate (2), and respectively machining a left positioning wedge block embedding groove (8), a middle positioning wedge block embedding groove (9) and a right positioning wedge block embedding groove (10) on the bottom surface of the inverted T-shaped groove (7); manufacturing a left positioning wedge block (4), a middle positioning wedge block (5) and a right positioning wedge block (6) which are in wedge shapes;
secondly, spot welding the web plate (1), the lower flange plate (2) and the upper flange plate to form an I-shaped beam;
thirdly, along the longitudinal direction of the web plate (1), the lower flange plate (2) is sleeved with the anti-deformation clamp plates (3) at equal intervals, a left positioning wedge block (4) is wedged in a left positioning wedge block embedding groove (8) on each anti-deformation clamp plate (3), the upper top surface of the left positioning wedge block (4) is abutted against the lower bottom surface of the lower flange plate (2), a middle positioning wedge block (5) is wedged in a middle positioning wedge block embedding groove (9) by the same method, the upper top surface of the middle positioning wedge block (5) is abutted against the lower bottom surface of the lower flange plate (2), a right positioning wedge block (6) is wedged in a right positioning wedge block embedding groove (10), and the upper top surface of the right positioning wedge block (6) is abutted against the lower bottom surface of the lower flange plate (2); the deformation-resistant fixture plate (3) and the lower flange plate (2) are firmly fixed together through wedging of the three positioning wedge blocks;
fourthly, spot welding the fixed anti-deformation clamp plates (3) to form an I-shaped beam which is obliquely abutted against the left side edge of the inverted T-shaped bracket (12);
fifthly, arranging an automatic walking welding machine on a walking track (13) of the left welding machine, starting the automatic walking welding machine, and performing groove welding on a left welding seam (11) between the web plate (1) and the lower flange plate (2);
and sixthly, hoisting the I-shaped beam welded with the left welding seam (11) to abut against the right side edge of the inverted T-shaped support (12), transferring the automatic walking welding machine to a walking track (14) of the right welding machine, starting the automatic walking welding machine, and performing groove welding on a right welding seam (15) between the web plate (1) and the lower flange plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110853298.0A CN113523688A (en) | 2021-07-27 | 2021-07-27 | On-site welding tool for travelling I-shaped beam and assembling and welding method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110853298.0A CN113523688A (en) | 2021-07-27 | 2021-07-27 | On-site welding tool for travelling I-shaped beam and assembling and welding method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN113523688A true CN113523688A (en) | 2021-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110853298.0A Pending CN113523688A (en) | 2021-07-27 | 2021-07-27 | On-site welding tool for travelling I-shaped beam and assembling and welding method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115464296A (en) * | 2022-10-12 | 2022-12-13 | 上海振华重工(集团)股份有限公司 | Semi-circular arc crossbeam and assembling method thereof |
-
2021
- 2021-07-27 CN CN202110853298.0A patent/CN113523688A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115464296A (en) * | 2022-10-12 | 2022-12-13 | 上海振华重工(集团)股份有限公司 | Semi-circular arc crossbeam and assembling method thereof |
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