CN111975278B - Splicing welding jig frame for steel box girder and splicing welding process thereof - Google Patents
Splicing welding jig frame for steel box girder and splicing welding process thereof Download PDFInfo
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- CN111975278B CN111975278B CN202011153232.2A CN202011153232A CN111975278B CN 111975278 B CN111975278 B CN 111975278B CN 202011153232 A CN202011153232 A CN 202011153232A CN 111975278 B CN111975278 B CN 111975278B
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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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- 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
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Abstract
The utility model belongs to the technical field of the technique of steel case roof beam processing among the railway system and specifically relates to a splice welding bed-jig and splice welding technology thereof of steel case roof beam are related to, it is including the horizontal bracket of placing the bottom plate and the down tube of placing the swash plate, the horizontal bracket level sets up, the down tube is provided with a plurality of, a plurality of down tube divide into two sets ofly, two sets of down tube all set up with the top at the horizontal bracket, the one end and the horizontal bracket of down tube are articulated, the other end is provided with the bracing piece, the one end and the horizontal bracket of bracing piece are articulated, be provided with the adjusting device who adjusts down tube and bracing piece position between the other end and. In this application, when the steel case roof beam of concatenation different models, only need adjust the down tube and can use the bed-jig, reduce the process of welding the bed-jig in the steel case roof beam production process, have the effect that shortens steel case roof beam production cycle.
Description
Technical Field
The application relates to the technical field of steel box girder processing in railway systems, in particular to a splicing welding jig frame of a steel box girder and a splicing welding process thereof.
Background
With the rapid development of railway engineering, railways are now being extended to various places. Steel box girders are commonly used in railway construction as supports for railway rails.
The existing steel box girder comprises a bottom plate, a middle web plate, an outer web plate and a top plate which are all welded and fixed. The steel box girder is usually supported by using a jig frame as an outer support nozzle steel box girder in engineering, then is spliced and then is welded, a bottom plate, a middle web plate, an outer web plate and a top plate are welded into a whole, and the bottom plate of some types of steel box girders is fixedly connected with an inclined plate.
With respect to the related art among the above, the inventors consider that the following drawbacks exist: because the steel box girders have different models, and the inclination angles of the bottom plates and the inclined plates of the steel box girders of different models are different, different jig frames need to be welded when the steel box girders of different models are assembled every time, so that the production period of the steel box girders is long.
Disclosure of Invention
In order to reduce the production cycle of steel box girder, this application provides a concatenation welding bed-jig of steel box girder and concatenation welding process thereof.
First aspect, the application provides a concatenation welding bed-jig of steel box girder adopts following technical scheme:
the utility model provides a concatenation welding bed-jig of steel case roof beam, the bed-jig is including the horizontal bracket of placing the bottom plate and the down tube of placing the swash plate, and the horizontal bracket level sets up, and the down tube is provided with a plurality of, and a plurality of down tube divide into two sets ofly, and two sets of down tubes all set up on the top of horizontal bracket, and the one end and the horizontal bracket of down tube are articulated, and the other end is provided with the bracing piece, and the one end and the horizontal bracket of bracing piece are articulated, are provided with the adjusting device who adjusts down tube and bracing piece position between the other.
By adopting the technical scheme, when the jig frame is used, the movable bottom plate drives the inclined plate to the top end of the horizontal frame, because one end of the diagonal rod is hinged with the horizontal frame to push the diagonal rod to rotate, the diagonal rod is abutted against the inclined plate, because the adjusting device is arranged between the other end of the diagonal rod and the horizontal rod, the position of the diagonal rod of the supporting rod is adjusted by the adjusting device, the diagonal rod is supported by the supporting rod, the diagonal rod is always abutted against the inclined plate of the steel box girder to complete the fixation of the inclined plate, the angle between the inclined rod and the horizontal frame is adjusted by the adjusting device through arranging the inclined rod and the supporting rod and arranging the adjusting device between the inclined rod and the supporting rod, so that the jig frame can fix various types of steel box girders, when the steel box girders of different models are spliced, the jig frame can be used only by adjusting the inclined rods, the process of welding the jig frame in the production process of the steel box girders is reduced, and the purpose of shortening the production period of the steel box girders is achieved.
Preferably, adjusting device includes adjustment tank and regulating block, and the adjustment tank is seted up at the lateral wall of down tube, and the adjustment tank runs through the down tube, and the regulating block rotates with the bracing piece to be connected, and the regulating block is located the adjustment tank, regulating block and adjusting tank sliding connection are provided with the locking subassembly between regulating block and the adjustment tank.
Through adopting above-mentioned technical scheme, when using adjusting device, because bracing piece and regulating block fixed connection, regulating block and adjustment tank sliding connection, so when promoting the position of bracing piece and down tube, the bracing piece drives the regulating block and slides in the adjustment tank, when the position of down tube is fixed, utilizes the locking Assembly to fix the position of regulating block and adjustment tank, makes the bracing piece support fixedly to the down tube, adjusting part simple structure, regulation convenience promote the convenience when the down tube is adjusted.
Preferably, the locking subassembly includes locking groove and locking bolt, and the lateral wall at the adjustment tank is seted up to the locking groove, and the one end of locking bolt is passed locking groove and is locked piece threaded connection, locking bolt and locking groove sliding connection, and the lateral wall butt of adjustment block and adjustment tank is passed to the one end of locking bolt.
By adopting the technical scheme, when the locking assembly is used, the locking bolt is rotated to abut against the bottom wall of the adjusting groove, and the adjusting block is fixed in the adjusting groove by the locking bolt due to the threaded connection of the locking bolt and the adjusting block; because locking bolt and locking groove sliding connection, when the regulating block slided in the regulating groove, the regulating block drove locking bolt and slided in the locking groove.
Preferably, the one end that the horizon frame was kept away from to the down tube is provided with the limiting plate, is provided with the slip subassembly between limiting plate and the down tube, and the slip subassembly includes dovetail, dovetail block and locking bolt, and the dovetail is seted up at the lateral wall of down tube, and the dovetail block is located the dovetail, dovetail block and dovetail sliding connection, dovetail block and limiting plate fixed connection, locking bolt and dovetail block threaded connection, the one end of locking bolt is passed dovetail block and dovetail butt.
Through adopting above-mentioned technical scheme, when adjusting the position of limiting plate and down tube, because limiting plate and forked tail piece fixed connection, the forked tail piece is in the dovetail, the forked tail piece slides with the dovetail, promote the limiting plate and drive the forked tail piece and slide in the dovetail, when limiting plate and swash plate butt, rotate lock dead bolt and dovetail butt, because lock dead bolt and dovetail threaded connection, the lock dead bolt is fixed the forked tail piece in the dovetail, make limiting plate and down tube fixed, utilize the swash plate butt on limiting plate and the bottom plate through setting up the limiting plate, it is fixed with bottom plate and swash plate and bed-jig to utilize the limiting plate, promote the stability when bottom plate and bed-jig are fixed.
Preferably, the horizontal stand includes unit frame and connecting rod, and the unit frame is provided with a plurality of, and the connecting rod setting is between adjacent unit frame, the both ends of connecting rod respectively with unit frame fixed connection, the unit frame includes horizontal pole and montant, horizontal pole and montant all are provided with a plurality of, the horizontal pole setting between adjacent montant, the both ends of horizontal pole respectively with two adjacent montant fixed connection.
By adopting the technical scheme, the horizontal frame is arranged into the unit frames and the connecting rods, and the connecting rods are utilized to connect the unit frames into a whole according to the length of the steel box girder, so that the flexibility of the horizontal frame during assembly is improved; the unit frame is arranged into a cross rod and a vertical rod, and two ends of the cross rod are fixedly connected with the vertical rod respectively, so that the whole structure of the unit frame is stable, and the stability of the unit frame is improved.
Preferably, the cross rod comprises a first rod and a second rod, the first rod is fixedly connected with the vertical rod, the second rod is fixedly connected with the adjacent vertical rod, and a telescopic assembly is arranged between the first rod and the second rod.
Through adopting above-mentioned technical scheme, through setting up the horizontal pole into first pole and second pole to set up flexible subassembly between first pole and second pole, adjust the distance between first pole and the second pole, make the length of unit frame can be adjusted, thereby make the bottom plate that the horizontal stand is applicable to different width, flexibility when further promoting the bed-jig and using.
Preferably, flexible subassembly is including flexible groove and cylinder, and flexible groove is seted up in the one end that the montant was kept away from to first pole, and the one end that the montant was kept away from to the second pole is located flexible inslot, second pole and flexible groove sliding connection, and the cylinder is located flexible inslot, the one end of cylinder and the diapire fixed connection in flexible groove, the other end and second pole fixed connection.
By adopting the technical scheme, when the telescopic assembly is used for adjusting the positions of the first rod and the second rod, the cylinder is started, and as one end of the second rod is positioned in the telescopic groove, the second rod is in sliding connection with the telescopic groove, and the cylinder drives the second rod to slide in the telescopic groove.
Preferably, a hydraulic cylinder is arranged between the inclined rod and the vertical rod, one end of the hydraulic cylinder is rotatably connected with the vertical rod, and the other end of the hydraulic cylinder is rotatably connected with the inclined rod.
Through adopting above-mentioned technical scheme, set up the pneumatic cylinder between montant and down tube to the both ends of pneumatic cylinder rotate with montant and down tube respectively and are connected, and when using the pneumatic cylinder, the pneumatic cylinder supports between down tube and montant, stability when further promoting the down tube and supporting.
In a second aspect, the splicing welding process of the splicing welding jig frame of the steel box girder provided by the application adopts the following technical scheme:
a splicing and welding process of a splicing and welding jig frame of a steel box girder comprises the following steps:
s1, adjusting a welding jig: firstly, starting an air cylinder to adjust the distance between adjacent vertical rods according to the width of a bottom plate, and then adjusting the angle between an inclined rod and a horizontal frame according to the angle between the bottom plate and an inclined plate;
s2, mounting a segment of the bottom plate on the jig: firstly, laying a unit of a bottom plate on a jig frame, detecting the external dimensions of the bottom plate and an inclined plate, pushing a limiting plate to drive a dovetail block to slide in a dovetail groove after meeting the requirements, enabling the limiting plate to be abutted against one end of the inclined plate far away from the bottom plate, and then rotating a locking bolt to enable one end of the locking bolt to penetrate through the dovetail block to be abutted against the bottom wall of the dovetail groove;
s3, installing the bottom plate of the second segment: paving a bottom plate of the second segment by taking the bottom plate of the first segment as a reference, detecting the overall dimensions of the bottom plates and the inclined plates of the two segments, and fixing the second segment with the jig frame by using a limiting plate after meeting the requirements;
s4, splicing the bottom plates: repeating the step S3, assembling the bottom plates of the subsequent sections in the same way, detecting the overall size of the bottom plates and the inclined plates after the bottom plates are assembled, and welding and fixing the bottom plates after the size meets the requirement;
s5, measuring the positions of the web plate and the partition plate: measuring the mounting positions of the middle web plate and the partition plate on the bottom plate by using a measuring instrument according to a design drawing, and drawing mounting lines of the middle web plate and the partition plate on the bottom plate;
s6, mounting a middle web: firstly, fixing a middle web plate of one section with a bottom plate according to a mounting line of the middle web plate, and then mounting and fixing a subsequent middle web plate with the middle web plate of one section to finish the fixing of the middle web plate and the bottom plate;
s7, mounting a partition plate: installing the partition plates of the first segment, welding and fixing the partition plates with the middle web plate and the bottom plate, sequentially installing the subsequent partition plates, controlling the distance between the partition plates, and welding and fixing the partition plates with the middle web plate and the bottom plate;
s8, mounting an outer web: installing the outer web of the first segment, rigidly fixing the outer web, the partition plate and the inclined plate, and welding the outer web of the first segment after the outer web is detected to be qualified; sequentially installing outer webs of subsequent sections, welding the outer webs after the outer webs are detected to be qualified, detecting the size of the whole steel box girder after all the outer webs are installed, and installing sections and top plates after the outer webs are qualified;
s9, installing a top plate: placing a top plate at the top end of the steel box girder, welding and fixing the top plate, a web plate and a partition plate after the size and the position of the top plate are qualified, and detecting the size of a section of steel box girder by using an instrument after welding; and sequentially welding subsequent top plates, detecting the section after welding, and detecting the whole steel box girder after all welding is finished.
By adopting the technical scheme, the length of the horizontal frame is adjusted by the air cylinder according to the width of the bottom plate, so that the horizontal frame is suitable for the bottom plates with different widths, and then the angle between the inclined rod and the horizontal frame is adjusted according to the angle between the inclined plate and the bottom plate, so that the adjustment is suitable for fixing the bottom plate and the inclined plate; firstly, mounting a section of the bottom plate on a jig frame, detecting the overall dimensions of the bottom plate and the inclined plate, determining that the bottom plate and the inclined plate are mounted correctly, and then fixing the bottom plate and the inclined plate by using a limiting plate to avoid displacement of the bottom plate of the previous section caused by the mounting of the bottom plate in the subsequent stage; then, mounting the bottom plates of the second section and the subsequent sections to complete the integral mounting of the bottom plates; measuring the positions of the web plate and the partition plate by using an instrument and drawing an installation line, then installing a section of the middle web plate, and then installing the subsequent middle web plate after the measured position is correct; and then, mounting the side webs and the top plate, wherein the size and the position of each side web and the top plate are detected, and finally, after the whole welding is finished, the whole size of the steel box girder is detected, so that the spliced steel box girder is within an error range.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the angle between the inclined rod and the horizontal frame is adjusted by the adjusting device, when steel box girders of different types are spliced, the jig frame can be used by only adjusting the inclined rod, the process of welding the jig frame in the production process of the steel box girders is reduced, and the purpose of shortening the production cycle of the steel box girders is achieved;
2. the adjusting device is arranged between the inclined rod and the supporting rod, so that the positions of the inclined rod and the supporting rod are adjusted, and the convenience of adjusting the inclined rod and the supporting rod is improved;
3. through setting up the horizontal pole into first pole and second pole to set up flexible subassembly between first pole and second pole, the flexibility when further promoting the bed-jig use.
Drawings
FIG. 1 is a schematic structural view of a steel box girder;
FIG. 2 is a schematic view intended to show the fixing of the bottom plate on the bed;
FIG. 3 is a schematic view intended to show a telescopic assembly;
FIG. 4 is an enlarged partial schematic view of portion A of FIG. 2;
fig. 5 is a partially enlarged schematic view of a portion B in fig. 2.
In the figure, 1, a steel box girder; 11. a base plate; 12. a sloping plate; 13. a middle web plate; 14. an outer web; 15. a top plate; 16. a partition plate; 2. a horizontal frame; 21. a unit frame; 211. a vertical rod; 212. a cross bar; 2121. a first lever; 2122. a second lever; 22. a connecting rod; 3. a diagonal bar; 4. a support bar; 5. an adjustment device; 51. an adjustment groove; 52. an adjusting block; 6. a locking assembly; 61. a locking groove; 62. a locking bolt; 7. a limiting plate; 8. a sliding assembly; 81. a dovetail groove; 82. a dovetail block; 83. locking the bolt; 9. a telescoping assembly; 91. a telescopic groove; 92. a cylinder; 10. and a hydraulic cylinder.
Detailed Description
The present application is described in further detail below with reference to figures 2-5.
The embodiment of the application discloses concatenation welding bed-jig of steel case roof beam. Referring to fig. 2 and 3, a splice welding jig for steel box girders includes a horizontal frame 2 for placing a bottom plate 11, place down tube 3 and bracing piece 4 of swash plate 12, 2 levels of horizontal bracket set up, horizontal bracket 2 sets up to width adjustable horizontal bracket 2, the bottom and the ground butt of horizontal bracket 2, down tube 3 and bracing piece 4 all are provided with a plurality of, a plurality of down tube 3 and a plurality of bracing piece 4 all set up the top at horizontal bracket 2, the one end and the horizontal bracket 2 of down tube 3 rotate to be connected, the one end that horizontal bracket 2 was kept away from to down tube 3 is provided with limiting plate 7, be provided with sliding assembly 8 between limiting plate 7 and the down tube 3, the one end and the horizontal bracket 2 of bracing piece 4 rotate to be connected, be provided with adjusting part between the other end of bracing piece 4 and the down tube 3, be provided with pneumatic cylinder 10 between down tube 3 and the horizontal bracket 2, the both ends of pneumatic cylinder 10 rotate with horizontal bracket 2 and down tube 3. When the jig is used, firstly, according to the length of a bottom plate 11 of a steel box girder 1, a constructor adjusts the distance between two inclined rods 3 and a hinge point of a horizontal frame 2, a hydraulic cylinder 10 is started again to drive the inclined rods 3 to rotate relative to the horizontal frame 2, the inclined rods 3 drive a support rod 4 to rotate relative to the horizontal frame 2 through an adjusting device 5, then the bottom plate 11 is moved to drive an inclined plate 12 and the inclined rods 3 to abut against each other, then a sliding assembly 8 is used to drive a limiting plate 7 to slide relative to the inclined rods 3, one end of the limiting plate 7 and the inclined plate 12 away from the bottom plate 11 is abutted against each other, the inclined plate 12 and the bottom plate 11 are fixed with the jig by utilizing the limiting plate 7, then the subsequent section of bottom plate 11 is fixed, and a middle web plate 13.
Referring to fig. 2 and 3, the horizontal frame 2 includes a plurality of unit frames 21 and connecting rods 22, each unit frame 21 includes a cross rod 212 and a vertical rod 211, each cross rod 212 and vertical rod 211 of each unit frame 21 includes a plurality of vertical rods 211, each vertical rod 211 is vertically disposed, two cross rods 212 are disposed between every two adjacent vertical rods 211, each cross rod 212 includes a first rod 2121 and a second rod 2122, each first rod 2121 and each second rod 2122 are horizontally disposed, one end of each first rod 2121 is fixedly connected to one vertical rod 211, and one end of each second rod 2122 is fixedly connected to the adjacent vertical rod 211; a telescopic assembly 9 is arranged between the first rod 2121 and the second rod 2122, the telescopic assembly 9 comprises a telescopic groove 91 and an air cylinder 92, the telescopic groove 91 is formed in one end, away from the vertical rod 211, of the first rod 2121, one end, away from the vertical rod 211, of the second rod 2122 is located in the telescopic groove 91, the second rod 2122 is slidably connected with the telescopic groove 91, the air cylinder 92 is located in the telescopic groove 91, one end of the air cylinder 92 is fixedly connected with the bottom wall of the telescopic groove 91, and the other end of the air cylinder is fixedly connected with one end, away from the vertical rod 211, of the second rod 2122; a plurality of connecting rods 22 are arranged between every two adjacent unit frames 21, and two ends of each connecting rod 22 are fixedly connected with the vertical rods 211 of the two adjacent unit frames 21 respectively. When the length of the horizontal frame 2 is adjusted, the starting cylinder 92 drives the second rod 2122 to slide in the telescopic slot 91, and the second rod 2122 drives the two adjacent vertical rods 211 to approach or leave.
Referring to fig. 2 and 4, the adjusting device 5 includes an adjusting groove 51 and an adjusting block 52, the adjusting groove 51 is opened on the side wall of the sway bar 3, the adjusting groove 51 penetrates through the sway bar 3, the adjusting block 52 is rotatably connected with one end of the supporting bar 4 far away from the horizontal frame 2, the adjusting block 52 is located in the adjusting groove 51, the adjusting block 52 is slidably connected with the adjusting groove 51, a locking assembly 6 is arranged between the adjusting block 52 and the adjusting groove 51, the locking assembly 6 includes a locking groove 61 and a locking bolt 62, the locking groove 61 is opened on the side wall of the adjusting groove 51, the locking groove 61 penetrates through the side wall of the adjusting groove 51, one end of the locking bolt 62 penetrates through the locking groove 61 and is in threaded connection with the adjusting block 52, the locking bolt 62 is slidably connected with the locking groove 61, and one end of the locking bolt 62. When the adjusting device 5 is used, firstly, the locking bolt 62 is rotated to be far away from the bottom wall of the adjusting groove 51, then the hydraulic cylinder 10 is started to drive the inclined rod 3 to rotate relative to the horizontal frame 2, the inclined rod 3 drives the adjusting block 52 to slide in the adjusting groove 51, and the adjusting block 52 drives the locking screw brush to slide in the locking groove 61; when the swash plate 12 abuts against the swash plate 3, the rotation lock bolt 62 abuts against the bottom wall of the adjustment groove 51, and the adjustment block 52 is fixed in the adjustment groove 51.
Referring to fig. 2 and 5, the sliding assembly 8 includes a dovetail groove 81, a dovetail block 82, and a locking bolt 83, the dovetail groove 81 is provided on a side wall of the sway bar 3 away from the locking groove 61, the dovetail groove 81 penetrates through an end surface of the sway bar 3, the dovetail block 82 is located in the dovetail groove 81, the dovetail block 82 is slidably connected with the dovetail groove 81, the dovetail block 82 is fixedly connected with the stopper plate 7, the locking bolt 83 is in threaded connection with the dovetail block 82, and one end of the locking bolt 83 penetrates through the dovetail block 82 and abuts against the dovetail groove 81. When the limiting plate 7 is pushed to slide relative to the inclined rod 3, the limiting plate 7 drives the dovetail block 82 to slide in the dovetail groove 81, and when the limiting plate 7 is abutted to one end, far away from the bottom plate 11, of the inclined plate 12, the locking bolt 83 is rotated to abut to the bottom wall of the dovetail groove 81, the dovetail block 82 is fixed in the dovetail groove 81, and the limiting plate 7 is fixed to the inclined rod 3.
The implementation principle of the splicing welding jig frame of the steel box girder in the embodiment of the application is as follows: when the jig frame is used for welding the steel box girder 1, firstly, the air cylinder 92 is started to drive the second rod 2122 to slide in the telescopic groove 91, and the distance between the hinge points of the two inclined rods 3 and the horizontal frame 2 is adjusted according to the length of the bottom plate 11 of the steel box girder 1; then rotate locking bolt 62 again and keep away from the diapire of adjustment tank 51, restart pneumatic cylinder 10 and drive the relative horizontal stand 2 rotation of down tube 3, down tube 3 rotates and drives regulating block 52 and slide in adjustment tank 51, regulating block 52 drives locking bolt 62 and slides in locking groove 61, regulating block 52 drives the relative horizontal stand 2 rotation of bracing piece 4, when the angle modulation between down tube 3 and horizontal stand 2 to the angle with bottom plate 11 and swash plate 12 the same, close pneumatic cylinder 10 then rotate locking bolt 62 and the diapire butt of adjustment tank 51, fix regulating block 52 in adjustment tank 51, accomplish the fixed of bracing piece 4 and down tube 3.
When a segment of the bottom plate 11 is moved to the top end of the horizontal frame 2, the bottom plate 11 drives the inclined plate 12 to abut against the inclined rod 3, the inclined plate 12 is supported by the inclined rod 3, then the limiting plate 7 is pushed to drive the dovetail block 82 to slide in the dovetail groove 81, when the limiting plate 7 abuts against one end, far away from the bottom plate 11, of the limiting plate 7 and the inclined plate 12, the locking bolt 83 is rotated to abut against the bottom wall of the dovetail groove 81, the bottom plate 11, the inclined plate 12 and the jig frame are fixed, then the subsequent segment of the bottom plate 11 is fixed, and the middle web plate 13 and the partition plate 16 are fixed.
The embodiment of the application also discloses a splicing welding process of the splicing welding jig frame of the steel box girder. A splicing and welding process of a splicing and welding jig frame of a steel box girder comprises the following steps:
s1, adjusting a welding jig: the cylinder 92 is started to adjust the distance between the adjacent vertical bars 211 according to the width of the bottom plate 11, and then the angle between the inclined rod 3 and the horizontal frame 2 is adjusted according to the angle between the bottom plate 11 and the inclined plate 12.
S2, mounting a segment of the bottom plate 11 on the jig: firstly, laying a unit of a bottom plate 11 on a jig frame, detecting the overall dimensions of the bottom plate 11 and an inclined plate 12, and adjusting the flame of the unit of the bottom plate 11 to ensure that no gap exists between the unit of the bottom plate 11 and the total jig frame; after meeting the requirements, the limiting plate 7 is pushed to drive the dovetail block 82 to slide in the dovetail groove 81, so that the limiting plate 7 is abutted to one end of the inclined plate 12 far away from the bottom plate 11, and then the locking bolt 83 is rotated, so that one end of the locking bolt 83 penetrates through the dovetail block 82 to be abutted to the bottom wall of the dovetail groove 81.
S3, mounting the bottom plate 11 of the second segment: and paving the bottom plate 11 of the second segment by taking the bottom plate 11 of the first segment as a reference, detecting the overall dimensions of the bottom plates 11 and the inclined plates 12 of the two segments, and fixing the second segment with the jig frame by using the limiting plate 7 after meeting the requirements.
S4, splicing the bottom plate 11: and repeating the step S3, assembling the bottom plates 11 of the subsequent sections in the same manner, detecting the overall sizes of the bottom plates 11 and the inclined plates 12 after the bottom plates 11 are assembled, and welding and fixing the bottom plates 11 after the sizes meet the requirements.
S5, measuring the positions of the web 13 and the partition plate 16: the mounting positions of the central web 13 and the partition plate 16 on the bottom plate 11 are measured by a measuring instrument according to a design drawing, and a mounting line of the central web 13 and the partition plate 16 is drawn on the bottom plate 11.
S6, mounting the middle web 13: firstly, the middle web 13 of one section is fixed with the bottom plate 11 according to the installation line of the middle web 13, and then the subsequent middle web 13 is installed and fixed with the middle web 13 of one section, so that the middle web 13 is fixed with the bottom plate 11.
S7, mounting the partition 16: installing the partition plate 16 of the first segment, welding and fixing the partition plate 16 with the middle web plate 13 and the bottom plate 11, sequentially installing the subsequent partition plates 16, controlling the distance between the partition plates 16, and welding and fixing the partition plate 16 with the middle web plate 13 and the bottom plate 11.
S8, mounting the outer web 14: installing the outer web 14 of the first segment, rigidly fixing the outer web 14, the partition plate 16 and the inclined plate 12, and welding the outer web 14 of the first segment after the detection is qualified; and sequentially installing the outer webs 14 of the subsequent sections, welding the outer webs 14 after the outer webs are detected to be qualified, detecting the size of the whole steel box girder 1 after all the outer webs 14 are installed, and installing the top plate 15 of one section after the outer webs are qualified.
S9, mounting the top plate 15: placing a top plate 15 at the top end of the steel box girder 1, welding and fixing the top plate 15, a web plate and a partition plate 16 after the size and the position of the top plate 15 are installed to be qualified, and detecting the size of a section of the steel box girder 1 by using an instrument after welding; and sequentially welding the subsequent top plates 15, detecting the section after welding, and detecting the whole steel box girder 1 after all welding is finished.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (2)
1. The utility model provides a concatenation welding bed-jig of steel case roof beam which characterized in that: the jig frame comprises a horizontal frame (2) for placing a bottom plate (11) and inclined rods (3) for placing inclined plates (12), the horizontal frame (2) is horizontally arranged, the inclined rods (3) are arranged in a plurality of groups, the inclined rods (3) are divided into two groups, the two groups of inclined rods (3) are arranged at the top end of the horizontal frame (2), one end of each inclined rod (3) is hinged with the horizontal frame (2), the other end of each inclined rod (3) is provided with a support rod (4), one end of each support rod (4) is hinged with the horizontal frame (2), an adjusting device (5) for adjusting the positions of the inclined rods (3) and the support rods (4) is arranged between the other end of each inclined rod (3), the horizontal frame (2) comprises a unit frame (21) and a connecting rod (22), the unit frames (21) are provided with a plurality of connecting rods (22), the connecting rods (22) are arranged between the adjacent unit frames (21), and two ends of the connecting rods (22) are respectively and fixedly, the unit frame (21) comprises a cross rod (212) and a vertical rod (211), the cross rod (212) and the vertical rod (211) are respectively provided with a plurality of cross rods (212), the cross rod (212) is arranged between the adjacent vertical rods (211), two ends of the cross rod (212) are respectively fixedly connected with the two adjacent vertical rods (211), the cross rod (212) comprises a first rod (2121) and a second rod (2122), the first rod (2121) is fixedly connected with the vertical rods (211), the second rod (2122) is fixedly connected with the adjacent vertical rods (211), a telescopic assembly (9) is arranged between the first rod (2121) and the second rod (2122), the telescopic assembly (9) comprises a telescopic groove (91) and an air cylinder (92), the telescopic groove (91) is arranged at one end of the first rod (2121) far away from the vertical rods (211), one end of the second rod (2122) far away from the vertical rods (211) is arranged in the telescopic groove (91), the air cylinder (92) is arranged in the telescopic groove (91), one end of the air cylinder (92) is fixedly connected with the bottom wall of the telescopic, the other end of the hydraulic cylinder is fixedly connected with a second rod (2122), a hydraulic cylinder (10) is arranged between the inclined rod (3) and the vertical rod (211), one end of the hydraulic cylinder (10) is rotatably connected with the vertical rod (211), and the other end of the hydraulic cylinder is rotatably connected with the inclined rod (3);
the adjusting device (5) comprises an adjusting groove (51) and an adjusting block (52), the adjusting groove (51) is formed in the side wall of the inclined rod (3), the adjusting groove (51) penetrates through the inclined rod (3), the adjusting block (52) is rotatably connected with the supporting rod (4), the adjusting block (52) is located in the adjusting groove (51), the adjusting block (52) is slidably connected with the adjusting groove (51), and a locking assembly (6) is arranged between the adjusting block (52) and the adjusting groove (51);
the locking assembly (6) comprises a locking groove (61) and a locking bolt (62), the locking groove (61) is formed in the side wall of the adjusting groove (51), one end of the locking bolt (62) penetrates through the locking groove (61) to be in threaded connection with the adjusting block (52), the locking bolt (62) is in sliding connection with the locking groove (61), and one end of the locking bolt (62) penetrates through the adjusting block (52) to be abutted against the side wall of the adjusting groove (51);
one end of the inclined rod (3) far away from the horizontal frame (2) is provided with a limiting plate (7), a sliding assembly (8) is arranged between the limiting plate (7) and the inclined rod (3), the sliding assembly (8) comprises a dovetail groove (81), a dovetail block (82) and a locking bolt (83), the dovetail groove (81) is arranged on the side wall of the inclined rod (3), the dovetail block (82) is located in the dovetail groove (81), the dovetail block (82) is in sliding connection with the dovetail groove (81), the dovetail block (82) is fixedly connected with the limiting plate (7), the locking bolt (83) is in threaded connection with the dovetail block (82), and one end of the locking bolt (83) penetrates through the dovetail block (82) and abuts against the dovetail groove (81).
2. The splicing and welding process of the splicing and welding jig frame of the steel box girder as claimed in claim 1, characterized by comprising the following steps:
s1, adjusting a welding jig: firstly, starting an air cylinder (92) to adjust the distance between adjacent vertical rods (211) according to the width of a bottom plate (11), and then adjusting the angle between an inclined rod (3) and a horizontal frame (2) according to the angle between the bottom plate (11) and an inclined plate (12);
s2, mounting one segment of the bottom plate (11) on a jig: firstly, one unit of a bottom plate (11) is laid on a jig frame, the overall dimensions of the bottom plate (11) and an inclined plate (12) are detected, after the overall dimensions meet the requirements, a limiting plate (7) is pushed to drive a dovetail block (82) to slide in a dovetail groove (81), so that the limiting plate (7) is abutted against one end of the inclined plate (12) far away from the bottom plate (11), then a locking bolt (83) is rotated, and one end of the locking bolt (83) penetrates through the dovetail block (82) to be abutted against the bottom wall of the dovetail groove (81);
s3, mounting the bottom plate (11) of the second segment: paving a bottom plate (11) of the second segment by taking the bottom plate (11) of the first segment as a reference, detecting the overall dimensions of the bottom plates (11) and the inclined plates (12) of the two segments, and fixing the second segment with the jig frame by using a limiting plate (7) after meeting the requirements;
s4, splicing bottom plate (11): repeating the step S3, assembling the bottom plates (11) of the subsequent sections in the same way, detecting the overall size of the bottom plates (11) and the inclined plates (12) after the bottom plates (11) are assembled, and welding and fixing the bottom plates (11) after the requirements are met;
s5, measuring the positions of the web (13) and the partition plate (16): measuring the mounting positions of the middle web plate (13) and the partition plate (16) on the bottom plate (11) by using a measuring instrument according to a design drawing, and drawing the mounting lines of the middle web plate (13) and the partition plate (16) on the bottom plate (11);
s6, mounting the middle web (13): firstly, fixing the middle web (13) and the bottom plate (11) of one section according to the installation line of the middle web (13), and then installing and fixing the subsequent middle web (13) and the middle web (13) of one section to finish the fixation of the middle web (13) and the bottom plate (11);
s7, mounting a partition plate (16): installing the partition plate (16) of the segment I, welding and fixing the partition plate (16) with the middle web plate (13) and the bottom plate (11), sequentially installing the subsequent partition plates (16), controlling the distance between the partition plates (16), and welding and fixing the partition plate (16) with the middle web plate (13) and the bottom plate (11);
s8, mounting the outer web (14): installing an outer web (14) of the first segment, rigidly fixing the outer web (14), a partition plate (16) and an inclined plate (12), and welding the outer web (14) of the first segment after the outer web is detected to be qualified; sequentially installing the outer webs (14) of subsequent sections, welding the outer webs (14) after the outer webs (14) are detected to be qualified, detecting the size of the whole steel box girder (1) after all the outer webs (14) are installed, and installing a section-top plate (15) after the outer webs (14) are qualified;
s9, mounting top plate (15): placing a top plate (15) at the top end of the steel box girder (1), welding and fixing the top plate (15), a web plate and a partition plate (16) after the size and the position of the top plate (15) are installed to be qualified, and detecting the size of a section of the steel box girder (1) by using an instrument after welding is finished; and sequentially welding subsequent top plates (15), detecting the section after welding, and detecting the whole steel box girder (1) after all welding is finished.
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| CN202011153232.2A CN111975278B (en) | 2020-10-26 | 2020-10-26 | Splicing welding jig frame for steel box girder and splicing welding process thereof |
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| CN202011153232.2A CN111975278B (en) | 2020-10-26 | 2020-10-26 | Splicing welding jig frame for steel box girder and splicing welding process thereof |
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| CN113319506A (en) * | 2021-06-04 | 2021-08-31 | 安徽宏源铁塔有限公司 | Adjustable opening limiting tool for pickling tank machining |
| CN113565259B (en) * | 2021-08-18 | 2022-07-15 | 江苏京沪重工有限公司 | Machining process for cantilever section of steel box girder of circular arc cantilever landscape platform |
| CN114083204A (en) * | 2021-10-23 | 2022-02-25 | 四川银桥钢模有限公司 | Steel formwork welding platform and welding method |
| CN114310101A (en) * | 2021-11-30 | 2022-04-12 | 华工法利莱切焊***工程有限公司 | Bridge steel box girder partition plate and bottom plate assembly system |
| CN114790689B (en) * | 2022-04-06 | 2024-03-19 | 黎明钢构股份有限公司 | Steel structure bridge overall assembly jig frame |
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