CN112238316A - Welding jig frame for steel shell block of immersed tunnel and using method of welding jig frame - Google Patents
Welding jig frame for steel shell block of immersed tunnel and using method of welding jig frame Download PDFInfo
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- CN112238316A CN112238316A CN202011051758.XA CN202011051758A CN112238316A CN 112238316 A CN112238316 A CN 112238316A CN 202011051758 A CN202011051758 A CN 202011051758A CN 112238316 A CN112238316 A CN 112238316A
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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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/063—Tunnels submerged into, or built in, open water
- E02D29/073—Tunnels or shuttering therefor assembled from sections individually sunk onto, or laid on, the water-bed, e.g. in a preformed trench
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The invention relates to the technical field of welding tools and discloses a welding jig frame for a steel shell block of an immersed tunnel and a using method of the welding jig frame. The welding jig frame of the immersed tube tunnel steel shell block comprises a base and a jig frame body. The base includes horizontally base bed frame, and the base bed frame includes a plurality of base crossbeams and a plurality of base longerons, and the base crossbeam extends along the first direction, and the base longeron extends along the second direction with first direction vertically, and a plurality of base crossbeams and a plurality of base longerons equal interval set up and the latticed base bed frame of rigid coupling formation. The bed-jig body includes bed-jig longeron, sign indicating number board and stand, and bed-jig longeron and the equal level setting of sign indicating number board, the bed-jig longeron extends along the second direction, and stand one end is fixed in the junction of base crossbeam and base longeron, and the other end extends and is fixed with the bed-jig longeron along vertical direction, and the sign indicating number board bottom is fixed with the bed-jig longeron, and the top can be dismantled with the immersed tube tunnel steel casing block body of treating the welding and be connected. The invention ensures the dimensional accuracy of the immersed tube tunnel steel shell block after welding.
Description
Technical Field
The invention relates to the technical field of welding tools, in particular to a welding jig frame for a steel shell block of an immersed tunnel and a using method of the welding jig frame.
Background
The immersed tube tunnel steel shell is composed of a plurality of pipe joints, the pipe joints are formed by splicing a plurality of blocks, and the blocks are also formed by welding a plurality of parts. When assembling the welded block, the block to be welded is fixed on the jig frame and then operated by the welding operator. During welding, due to the fact that the temperature is high, parts deform, and the welded block body is arched upwards and deforms. And in the bed-jig among the prior art, rigidity restraint to the bed-jig stand is less, and when the block warp at welding process, the bed-jig stand also produced deformation, can not effectual suppression block warp, seriously influences the size precision of block for the size precision of the immersed tube tunnel steel casing that follow-up equipment formed is difficult to accord with the acceptance standard, makes the project have great quality risk and the risk of violating the engineering progress.
Based on this, a need exists for a welding jig for a steel shell block of a immersed tube tunnel and a method for using the same to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to provide a welding jig frame of a steel shell block of a immersed tube tunnel and a using method thereof, which improve the structural strength of the jig frame, avoid the deformation of a stand column due to the deformation of the steel shell block of the immersed tube tunnel during welding, inhibit the deformation of the steel shell block of the immersed tube tunnel during welding and ensure the dimensional accuracy of the steel shell block of the immersed tube tunnel after welding.
In order to achieve the purpose, the invention adopts the following technical scheme:
a welding jig frame of a steel shell block of a immersed tube tunnel comprises:
the base comprises a horizontally arranged base frame, the base frame comprises a plurality of base cross beams and a plurality of base longitudinal beams, the base cross beams extend along a first direction, the base longitudinal beams extend along a second direction perpendicular to the first direction, the base cross beams are arranged at intervals along the second direction, the base longitudinal beams are arranged at intervals along the first direction, and the base cross beams and the base longitudinal beams are fixedly connected to form a latticed base frame;
the bed-jig body, including a plurality of bed-jig longerons, a plurality of yard boards and a plurality of stand, the bed-jig longeron with the equal level setting of yard board, the bed-jig longeron is followed the second direction extends, the lateral wall of stand one end is fixed the base crossbeam with the junction of base longeron, the other end of stand upwards extend along vertical direction and with the bed-jig longeron is fixed, the bottom of yard board with the bed-jig longeron is fixed, the top of yard board can be dismantled with the immersed tube tunnel steel casing block of treating the welding and be connected.
Preferably, the base beam comprises a first beam and a second beam which are parallel and alternately arranged, the first beam and the second beam extend along the first direction, the first beam comprises a plurality of first beam sections, two ends of each first beam section are respectively connected to the side surfaces of two adjacent base longitudinal beams, and the second beam is fixedly connected with the upright column and the bottom surface or the top surface of each base longitudinal beam.
Preferably, the base still includes the stabilizer blade of vertical setting, the top end face of stabilizer blade is fixed the base crossbeam with the junction of base longeron, the bottom end face laminating of stabilizer blade is on the work ground.
Preferably, the bed-jig body still includes the spacing frame that the level set up, spacing frame is followed the circumference of bed-jig body encloses and establishes week side of bed-jig body, just spacing frame is fixed week side of bed-jig body is last on the stand.
Preferably, the limiting frame comprises a plurality of shape-preserving flat irons which are connected end to form the limiting frame, and the shape-preserving flat irons are fixed on the side wall of the upper end of the upright post.
Preferably, the jig frame body further comprises a plurality of additional flat irons which are horizontally arranged and arranged at intervals along the second direction, and two ends of each additional flat iron are welded to two adjacent jig frame longitudinal beams respectively.
Preferably, the additional flat iron extends in the first direction.
Preferably, the bottom surface of the upright post is attached to the working ground.
Preferably, the jig frame body further comprises a shape-preserving template, the shape-preserving template is fixed on the side wall at the upper end of the upright post, and the top surface profile of the shape-preserving template can be fitted to the outer profile of the convex part convexly arranged on the steel shell block of the immersed tube tunnel to be welded.
The use method of the welding jig applied to the welding jig of the steel shell block of the immersed tube tunnel comprises the following steps:
s1, assembling the base and placing the base on a working ground;
s2, welding and fixing the upright post on the base;
s3, trimming the upper end surfaces of the plurality of upright posts to enable the upper end surfaces of the plurality of upright posts to be positioned on a preset reference surface;
s4, placing the immersed tube tunnel steel shell blocks to be welded on the upper end surfaces of the plurality of upright posts;
s5, checking the fitting degree of the bottom surface of the steel shell block of the immersed tunnel to be welded and the upper end surfaces of the plurality of stand columns;
s6, fixedly connecting one end of the stacking plate with the jig frame longitudinal beam;
s7, fixing the other end of the code plate and the bottom surface of the immersed tunnel steel shell block to be welded in a spot welding manner;
and S8, welding the immersed tube tunnel steel shell block.
The invention has the beneficial effects that: the immersed tube tunnel steel shell block is fixed with the bed-jig body through the yard board, through setting up the base, and the lower extreme of the stand of bed-jig body is fixed in the junction of base crossbeam and base longeron, the structural strength of bed-jig body has been improved, avoided the stand to warp because the deformation of immersed tube tunnel steel shell block when the welding, the size precision of immersed tube tunnel steel shell block after the welding has been guaranteed, set up base and bed-jig longeron simultaneously, the both ends of stand all set up the restraint promptly, further avoided the stand to warp, thereby the deformation of bed-jig body has been avoided, the structural strength of bed-jig has also been improved, the deformation of immersed tube tunnel steel shell block when the welding has been suppressed. The stacking plate is detachably connected with the immersed tube tunnel steel shell block, so that the block can be prevented from being deformed and arched when the immersed tube tunnel steel shell block is welded, and the immersed tube tunnel steel shell block can be detached after the immersed tube tunnel steel shell block is welded, and the operation is convenient.
Drawings
Fig. 1 is a sectional view of a welding jig for a steel shell block of a immersed tunnel according to an embodiment of the invention in a first use condition;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
fig. 3 is a sectional view of a welding jig of a steel shell block of a immersed tunnel according to an embodiment of the invention in a second use condition;
FIG. 4 is an enlarged view of a portion of FIG. 3 at B;
fig. 5 is a sectional view of a welding jig of a steel shell block of a immersed tunnel according to an embodiment of the invention in a third use condition;
fig. 6 is a flowchart illustrating steps of a method for using a welding jig according to an embodiment of the present invention.
In the figure:
10. a steel shell block of the immersed tunnel; 101. a projection; 20. a working ground;
11. a base beam; 111. a first cross member; 112. a second cross member; 12. a base stringer; 13. a support leg;
21. a bed frame stringer; 22. stacking plates; 23. a column; 24. a limiting frame; 25. adding flat iron; 26. and (4) maintaining the shape of the template.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
This embodiment provides a welding bed-jig of immersed tube tunnel box hat block, has improved the structural strength of bed-jig, has avoided the stand because immersed tube tunnel box hat block warp and warp when the welding, has restrained the deformation of immersed tube tunnel box hat block when the welding, has guaranteed the size precision of immersed tube tunnel box hat block after the welding.
Specifically, as shown in fig. 1 to 5, the welding jig of the steel shell block of the immersed tube tunnel comprises a base and a jig body. The base includes the base bed frame that the level set up, and the base bed frame includes a plurality of base crossbeams 11 and a plurality of base longerons 12, and base crossbeam 11 extends along the first direction, and base longeron 12 extends along the second direction with first direction vertically, and a plurality of base crossbeams 11 set up along the second direction interval, and a plurality of base longerons 12 set up along the first direction interval, and base crossbeam 11 and base longeron 12 fixed connection form latticed base bed frame. The bed-jig body includes a plurality of bed-jig longerons 21, a plurality of yardage 22 and a plurality of stand 23, bed-jig longeron 21 and the equal level setting of yard board 22, bed-jig longeron 21 extends along the second direction, the junction at base crossbeam 11 and base longeron 12 is fixed to the lateral wall of stand 23 one end, the other end of stand 23 upwards extends and is fixed with bed-jig longeron 21 along vertical direction, the bottom and the bed-jig longeron 21 of yard board 22 are fixed, the top of yard board 22 can be dismantled with the immersed tube tunnel steel shell block 10 of treating the welding and be connected. The immersed tube tunnel steel shell block 10 is fixed with the bed-jig body through the yard board 22, through setting up the base, and the lower extreme of the stand 23 of bed-jig body is fixed in the junction of base crossbeam 11 and base longeron 12, the structural strength of bed-jig body has been improved, avoided the stand 23 to warp because the deformation of immersed tube tunnel steel shell block 10 when the welding, the size precision of immersed tube tunnel steel shell block 10 after the welding has been guaranteed, set up base and bed-jig longeron 21 simultaneously, the both ends of stand 23 all set up the restraint promptly, further avoided the stand 23 to warp, thereby the deformation of bed-jig body has been avoided, the holistic structural strength of bed-jig has also been improved, the deformation of immersed tube tunnel steel shell block 10 when the welding has been restrained. The stacking plate 22 is detachably connected with the immersed tube tunnel steel shell block body 10, so that the block body can be prevented from being deformed and arched when the immersed tube tunnel steel shell block body 10 is welded, and the immersed tube tunnel steel shell block body 10 can be detached after the immersed tube tunnel steel shell block body 10 is welded, so that the operation is convenient. In this embodiment, the code plate 22 is spot welded to the steel shell block 10 of the immersed tunnel.
Preferably, the bottom surface of the upright column 23 is attached to the working ground 20, so that the contact area between the jig frame and the working ground 20 is increased, the stability is improved, the overall structural strength of the jig frame is also improved, the deformation of the immersed tunnel steel shell block 10 during welding is inhibited, and the size precision of the immersed tunnel steel shell block 10 after welding is ensured.
Specifically, the base cross beam 11 includes a first cross beam 111 and a second cross beam 112 which are parallel and alternately arranged, the first cross beam 111 and the second cross beam 112 both extend along a first direction, the first cross beam 111 includes a plurality of first cross beam sections, two ends of the first cross beam sections are respectively connected to the side surfaces of two adjacent base longitudinal beams 12, and the second cross beam 112 is fixedly connected to the bottom surfaces or the top surfaces of the upright column 23 and the base longitudinal beams 12. The first cross beam 111 is connected with the base longitudinal beam 12 in a segmented manner, so that the structural stability of the jig frame can be improved, the deformation of the upright column 23 due to the deformation of the immersed tube tunnel steel shell block 10 during welding is avoided, and the production and the processing are facilitated. In other embodiments, the second cross member 112 may also include a plurality of second cross member segments, and the segments are fixedly connected to the bottom or top surfaces of the upright 23 and the base longitudinal member 12, so as to facilitate welding connection and production processing. The base longitudinal beam 12 may also include a plurality of longitudinal beam segments, which are fixedly connected to the upright 23 and the base cross beam 11, so as to facilitate welding connection and production and processing.
Preferably, the base further comprises a vertically arranged support leg 13, the top end face of the support leg 13 is fixed at the joint of the base cross beam 11 and the base longitudinal beam 12, and the bottom end face of the support leg 13 is attached to the working ground 20. Set up stabilizer blade 13 and can raise the base bed frame, avoid contacting subaerial ponding, also reduced rusty possibility, improved the incorruptibility.
Preferably, the end face of the top end of the supporting leg 13 is fixed at the joint of the first cross beam 111 and the base longitudinal beam 12, the supporting leg 13 is not arranged at the joint of the second cross beam 112 and the base longitudinal beam 12, and the second cross beam 112 is fixedly connected to the bottom surface or the top surface of the upright column 23 and the base longitudinal beam 12, so that a certain fixing effect can be achieved, the number of the supporting legs 13 is reduced, and the cost is reduced.
Preferably, the jig frame body further comprises a horizontally arranged limit frame 24, the limit frame 24 is arranged around the periphery of the jig frame body along the circumferential direction of the jig frame body, and the limit frame 24 is fixed on the upright column 23 around the periphery of the jig frame body. In this embodiment, the size of bed-jig body is decided according to immersed tube tunnel steel shell block 10, and then immersed tube tunnel steel shell block 10 is placed near the stand 23 of bed-jig body outermost end with other block welded terminal surfaces, and spacing frame 24 can further avoid the stand 23 of bed-jig body outermost end to warp to restrain the deformation of immersed tube tunnel steel shell way block 10.
Preferably, the limiting frame 24 comprises a plurality of shape-preserving flat irons which are connected end to form the limiting frame 24, the shape-preserving flat irons are fixed on the side wall of the upper end of the upright post 23, and the limiting frame 24 is arranged in sections, so that the difficulty of production and assembly can be reduced, the deformation of the free end of the block body is reduced, and the cost is reduced.
In a first use case of the welding jig of the immersed tube tunnel steel shell block provided in this embodiment, as shown in fig. 1-2, when the immersed tube tunnel steel shell block 10 is a flat-bottom block, that is, the bottom surface of the immersed tube tunnel steel shell block 10 contacting with the jig is a plane, the top surfaces of all the columns 23 are on the same horizontal plane.
In a second use case of the welding jig of the immersed tube tunnel steel shell block provided in this embodiment, as shown in fig. 3-4, when the immersed tube tunnel steel shell block 10 is a top plate block having the protrusion 101, that is, the protrusion 101 is convexly arranged on the bottom surface of the immersed tube tunnel steel shell block 10 contacting with the jig, due to the arrangement of the protrusion 101, if the top ends of the pillars 23 are in the same horizontal plane, the immersed tube tunnel steel shell block 10 cannot be stably placed on the jig body. Therefore, the jig frame body further comprises a shape-preserving template 26, the shape-preserving template 26 is fixed on the side wall at the upper end of the upright column 23, the top surface outline of the shape-preserving template 26 can be fitted to the outline of the convex part 101 convexly arranged on the immersed tube tunnel steel shell block body 10 to be welded, and the size error of the convex part 101 after welding is reduced.
In a third use case of the welding jig for the steel shell block of the immersed tube tunnel provided in the embodiment, preferably, as shown in fig. 5, when the steel shell block 10 of the immersed tube tunnel is a block at the joint between two tube sections, that is, the edge of the block is provided with an end steel shell. The jig frame body then also comprises a plurality of additional flat irons 25. The plurality of additional flat irons 25 are horizontally arranged and are arranged at intervals along the second direction, and two ends of each additional flat iron 25 are welded to two adjacent bed frame longitudinal beams 21 respectively. The end steel shell is arranged above the upright column 23 additionally provided with the additional flat iron 25, and the additional flat iron 25 can further prevent the block from deforming at the position of the end steel shell.
Preferably, the additional flat iron 25 extends in a first direction, i.e. the additional flat iron 25 is perpendicular to the bed frame rail 21, facilitating a secure mounting.
The embodiment also provides a use method of the welding jig, which is applied to the welding jig of the immersed tube tunnel steel shell block body, so that the immersed tube tunnel steel shell block body 10 can be stably placed on the stand column 23 and the stacking plate 22, the stand column 23 is prevented from deforming due to the deformation of the immersed tube tunnel steel shell block body 10 during welding, the deformation of the immersed tube tunnel steel shell block body 10 during welding is inhibited, and the size precision of the immersed tube tunnel steel shell block body 10 after welding is ensured. As shown in fig. 6, the method for using the welding jig specifically includes:
s1, assembling the base and placing the base on the work surface 20.
And assembling the base longitudinal beams 12, the base cross beams 11 and the support legs 13, and welding and connecting the joints.
And S2, welding and fixing the upright 23 on the base.
Specifically, the upright 23 is welded to the base longitudinal beam 12 and the base cross beam 11, and the bottom surface of the upright 23 is attached to the work floor 20.
And S3, trimming the upper end faces of the upright posts 23 to enable the upper end faces of the upright posts 23 to be located on the preset reference plane.
Because the up end of stand 23 and immersed tube tunnel steel shell block 10 contact, the up end of finishing stand 23 can make immersed tube tunnel steel shell block 10 and stand 23 steady contact, has improved the holding power of bed-jig body to immersed tube tunnel steel shell block 10. In addition, when the immersed tube tunnel steel shell block 10 is a top plate block with the convex part 101, the height of the upright 23 at the position corresponding to the convex part 101 needs to be shortened according to the position of the convex part 101, the shape-preserving template 26 is processed according to the outer contour shape of the convex part 101, and the template is fixed with the shortened upright 23. When the immersed tunnel steel shell block 10 has an end steel shell, an additional flat iron 25 needs to be fixedly connected to the upright column 23 of the jig frame body for supporting the end steel shell in advance.
And S4, placing the immersed tube tunnel steel shell blocks 10 to be welded on the upper end surfaces of the plurality of upright posts 23.
The bottom surface of the steel shell block 10 of the immersed tunnel is placed on the upper end surfaces of the plurality of columns 23.
And S5, checking the fitting degree of the bottom surface of the steel shell block 10 of the immersed tube tunnel to be welded and the upper end surfaces of the plurality of upright posts 23.
The steel shell block 10 of the immersed tunnel is ensured to be stably contacted with the upright column 23, the supporting force of the jig frame body on the steel shell block 10 of the immersed tunnel is improved, and the deformation of the steel shell block 10 of the immersed tunnel is reduced.
And S6, fixedly connecting one end of the yard plate 22 with the tire frame longitudinal beam 21.
After placing immersed tube tunnel box hat block 10, place sign indicating number board 22 again, can be convenient for select suitable sign indicating number board 22, make immersed tube tunnel box hat block 10 place on the top surface of sign indicating number board 22 and stand 23.
And S7, fixing the other end of the code plate 22 and the bottom surface of the immersed tube tunnel steel shell block 10 to be welded in a spot welding manner.
And the immersed tube tunnel steel shell block 10 is conveniently separated from the stacking plate 22 after welding is finished by using a spot welding mode.
And S8, welding the immersed tube tunnel steel shell block 10.
In this embodiment, each joint of the jig frame is welded, so that the connection strength is ensured, and the welding seam is continuously welded.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a welding bed-jig of immersed tube tunnel box hat block which characterized in that includes:
the base comprises a horizontally arranged base pedestal, the base pedestal comprises a plurality of base cross beams (11) and a plurality of base longitudinal beams (12), the base cross beams (11) extend along a first direction, the base longitudinal beams (12) extend along a second direction perpendicular to the first direction, the base cross beams (11) are arranged at intervals along the second direction, the base longitudinal beams (12) are arranged at intervals along the first direction, and the base cross beams (11) and the base longitudinal beams (12) are fixedly connected to form a latticed base pedestal;
the bed-jig body, including a plurality of bed-jig longerons (21), a plurality of yard board (22) and a plurality of stand (23), bed-jig longeron (21) with yard board (22) equal level sets up, bed-jig longeron (21) are followed the second direction extends, the lateral wall of stand (23) one end is fixed base crossbeam (11) with the junction of base longeron (12), the other end of stand (23) upwards extend along vertical direction and with bed-jig longeron (21) are fixed, the bottom of yard board (22) with bed-jig longeron (21) are fixed, the top of yard board (22) can be dismantled with the immersed tube tunnel steel shell block (10) of treating the welding and be connected.
2. The welding jig of immersed tunnel steel shell block according to claim 1, characterized in that, the base cross beam (11) comprises a first cross beam (111) and a second cross beam (112) which are arranged in parallel and alternatively, the first cross beam (111) and the second cross beam (112) both extend along the first direction, the first cross beam (111) comprises a plurality of first cross beam sections, both ends of the first cross beam sections are respectively connected to the side surfaces of two adjacent base longitudinal beams (12), and the second cross beam (112) is fixedly connected with the bottom surfaces or top surfaces of the upright column (23) and the base longitudinal beams (12).
3. The welding jig frame for the steel shell block of the immersed tunnel according to claim 1, wherein the base further comprises vertically arranged support legs (13), the top end surfaces of the support legs (13) are fixed at the joint of the base cross beam (11) and the base longitudinal beam (12), and the bottom end surfaces of the support legs (13) are attached to a working ground (20).
4. The welding jig of the immersed tube tunnel steel shell block according to claim 1, wherein the jig body further comprises a horizontally arranged limiting frame (24), the limiting frame (24) is arranged around the periphery of the jig body along the circumferential direction of the jig body, and the limiting frame (24) is fixed on the upright column (23) around the periphery of the jig body.
5. The welding jig frame for the steel shell block of the immersed tunnel according to claim 4, wherein the limiting frame (24) comprises a plurality of shape-retaining flat irons which are connected end to form the limiting frame (24), and the shape-retaining flat irons are fixed on the side wall of the upper end of the upright column (23).
6. The welding jig frame of the immersed tube tunnel steel shell block according to claim 1, wherein the jig frame body further comprises a plurality of additional flat irons (25), the additional flat irons (25) are horizontally arranged and are arranged at intervals along the second direction, and two ends of each additional flat iron (25) are respectively welded on two adjacent jig frame longitudinal beams (21).
7. Welding jig of immersed tunnel steel shell blocks according to claim 6, characterized in that said additional band iron (25) extends along said first direction.
8. Welding jig of immersed tunnel steel shell block according to claim 1, characterized in that the bottom surface of the upright (23) is attached to the working ground (20).
9. The welding jig of the immersed tunnel steel shell block according to claim 1, characterized in that the jig body further comprises a shape-retaining template (26), the shape-retaining template (26) is fixed on the side wall of the upper end of the upright column (23), and the top surface profile of the shape-retaining template (26) can be fitted to the outer profile of the convex part (101) protruded on the immersed tunnel steel shell block (10) to be welded.
10. A method for using a welding jig applied to the steel shell block of the immersed tunnel according to any one of claims 1 to 9, comprising:
s1, assembling the base and placing the base on a working ground (20);
s2, welding and fixing the upright post (23) on the base;
s3, trimming the upper end surfaces of the plurality of upright columns (23) to enable the upper end surfaces of the plurality of upright columns (23) to be positioned on a preset reference surface;
s4, placing the immersed tube tunnel steel shell blocks (10) to be welded on the upper end surfaces of the upright posts (23);
s5, checking the fitting degree of the bottom surface of the steel shell block (10) of the immersed tunnel to be welded and the upper end surfaces of the plurality of columns (23);
s6, fixedly connecting one end of the yard plate (22) with the jig frame longitudinal beam (21);
s7, fixing the other end of the code plate (22) and the bottom surface of the immersed tube tunnel steel shell block body (10) to be welded in a spot welding manner;
and S8, welding the immersed tube tunnel steel shell block (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011051758.XA CN112238316B (en) | 2020-09-29 | 2020-09-29 | Welding jig frame for steel shell block of immersed tunnel and using method of welding jig frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011051758.XA CN112238316B (en) | 2020-09-29 | 2020-09-29 | Welding jig frame for steel shell block of immersed tunnel and using method of welding jig frame |
Publications (2)
| Publication Number | Publication Date |
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| CN112238316A true CN112238316A (en) | 2021-01-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115230903A (en) * | 2022-07-29 | 2022-10-25 | 广船国际有限公司 | Hull construction process |
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| CN201432273Y (en) * | 2009-06-19 | 2010-03-31 | 武汉市海波钢结构安装工程有限公司 | Truss-type module jig frame for section manufacturing of steel box girder |
| CN202062324U (en) * | 2011-05-20 | 2011-12-07 | 武船重型工程有限公司 | Combinable adjusting jig frame |
| CN206256383U (en) * | 2016-11-22 | 2017-06-16 | 中冶建工集团有限公司 | A kind of large-span steel box girder assembling moulding bed |
| CN111424560A (en) * | 2020-04-29 | 2020-07-17 | 中铁宝桥集团有限公司 | Steel girder assembling jig frame and method for assembling steel girder by using jig frame |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201432273Y (en) * | 2009-06-19 | 2010-03-31 | 武汉市海波钢结构安装工程有限公司 | Truss-type module jig frame for section manufacturing of steel box girder |
| CN202062324U (en) * | 2011-05-20 | 2011-12-07 | 武船重型工程有限公司 | Combinable adjusting jig frame |
| CN206256383U (en) * | 2016-11-22 | 2017-06-16 | 中冶建工集团有限公司 | A kind of large-span steel box girder assembling moulding bed |
| CN111424560A (en) * | 2020-04-29 | 2020-07-17 | 中铁宝桥集团有限公司 | Steel girder assembling jig frame and method for assembling steel girder by using jig frame |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115230903A (en) * | 2022-07-29 | 2022-10-25 | 广船国际有限公司 | Hull construction process |
| CN115230903B (en) * | 2022-07-29 | 2023-08-22 | 广船国际有限公司 | Ship body construction process |
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