CN114393284A - Plate unit U rib inner and outer longitudinal seam synchronous integrated ship position submerged arc welding system and process thereof - Google Patents
Plate unit U rib inner and outer longitudinal seam synchronous integrated ship position submerged arc welding system and process thereof Download PDFInfo
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- CN114393284A CN114393284A CN202210166212.1A CN202210166212A CN114393284A CN 114393284 A CN114393284 A CN 114393284A CN 202210166212 A CN202210166212 A CN 202210166212A CN 114393284 A CN114393284 A CN 114393284A
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- 238000000034 method Methods 0.000 title claims description 37
- 230000001360 synchronised effect Effects 0.000 title claims description 27
- 230000002441 reversible effect Effects 0.000 claims abstract description 21
- 238000013519 translation Methods 0.000 claims description 65
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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
- B23K9/00—Arc welding or cutting
- B23K9/18—Submerged-arc welding
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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
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
Abstract
The plate unit welding platform is positioned in the middle of the track and used for bearing and fixing the U rib of the plate unit to be welded, and the plate unit anti-deformation welding positioner travels on the track and is used for clamping the U rib of the plate unit to be welded on a bearing surface of the plate unit welding platform in an anti-deformation positioning manner; the external welding equipment, the internal welding equipment, the hoisting device and the reversible assembling and disassembling machine are arranged together, so that the field is saved to a great extent; when the longitudinal rib plate units are welded, the longitudinal rib plate units are positioned in the ship position, and can be welded synchronously by internal and external welding, so that the working efficiency is greatly improved; the assembly line is in place through one-time tooling, the transportation and repeated positioning work of heavy workpieces in a workshop is reduced, and the working efficiency and the welding quality are improved.
Description
Technical Field
The application relates to the technical field of welding equipment, in particular to a plate unit U rib inner and outer longitudinal seam synchronous integrated ship position submerged arc welding system and a technology thereof.
Background
The steel box girder bridge panel structure that present bridge adopted includes board unit U rib, and board unit U rib includes steel decking and U rib, and when the board unit was made, need carry out inside and outside welding with the both sides web and the steel decking of U rib along vertical fillet joint. The U-shaped ribs are slender and narrow, the length of the U-shaped ribs is usually more than 12m, and the welding of the overlong plate unit is generally carried out by supporting one overlong plate unit by using a welding platform.
In the prior art, the inside and outside welding and the anti-deformation assembly and disassembly of the U ribs of the plate units are separately and independently carried out, the longitudinal rib plate units are firstly hoisted to an inside welding equipment platform for a flat inside welding process flow, then the U ribs of the plate units are hoisted to anti-deformation equipment for anti-deformation clamping, then the plate units are hoisted to outside welding equipment for a ship position outside welding process flow, and after the outside welding is finished, the plate units are hoisted to an anti-deformation equipment dismantling clamp for completing the whole welding process flow.
Disclosure of Invention
In order to solve the problems that in the prior art, the U rib welding process of the plate unit involves repeated hoisting of the U rib of the plate unit and fixing and detaching of the plate unit, the occupied area of equipment is large, and the production efficiency and the quality stability of the U rib of the plate unit are further reduced, the application provides a ship position submerged arc welding system and a technology for synchronously integrating the inner longitudinal seam and the outer longitudinal seam of the U rib of the plate unit. The following technical scheme is adopted:
the board unit welding platform is positioned in the middle of the track and used for bearing and fixing the U ribs of the board unit to be welded, the board unit anti-deformation welding positioner is positioned on the track and walks to clamp the U ribs of the board unit to be welded on a bearing surface of the board unit welding platform in an anti-deformation positioning mode, the outer welding system is positioned on the track and walks to conduct multistage submerged arc welding on two longitudinal seams on the outer sides of the U ribs of the board unit, and the inner welding system is positioned on the track and walks to complete welding of the longitudinal seams inside the U ribs of the board unit to be welded.
Through the technical scheme, the plate unit anti-deformation welding tire position assembling and disassembling machine is adopted to be matched with an anti-deformation positioning installation mode of the U rib of an order worker, the traveling crane hoisting times are greatly reduced, the production efficiency of equipment is improved, the outer welding system and the inner welding system can simultaneously complete the inner welding and the outer welding of the U rib of the plate unit to be welded, the welding efficiency is improved, the welding quality is guaranteed, and the deformation influence caused by repeated welding is avoided.
Optionally, the plate unit welding platform is composed of a variable-position movable jig frame vehicle and a fixed base, the fixed base is mounted on a bearing surface of the variable-position movable jig frame vehicle and used for reversely deforming and positioning the U ribs of the fixed plate units, and the plate unit welding platform can drive the U ribs of the fixed plate units to rotate by a designated angle.
Through above-mentioned technical scheme, board unit welded platform can satisfy the rotatory appointed angle of board unit U rib.
Optionally, the plate unit welding platform can drive the U rib of the plate unit to rotate clockwise or counterclockwise by 0-45 °.
Optionally, the outer welding system comprises an outer welding portal frame, an outer welding translation type welding turnover oblique beam device and a multi-stage outer welding gun head, the outer welding portal frame is located on the track and travels, a base of the outer welding translation type welding turnover oblique beam device is installed on the outer welding portal frame, and the multi-stage outer welding gun head is installed on a rotating turntable of the outer welding translation type welding turnover oblique beam device and used for performing multi-stage submerged arc welding on two longitudinal seams on the outer side of a U rib of the plate unit.
Through the technical scheme, the multi-stage external welding gun heads are mounted by adopting the external welding translation type welding turnover oblique beam device, so that the multi-stage external welding gun heads can be driven to complete integral rotation and translation, and the requirements of the subsequent process are met.
Optionally, the internal welding system comprises an internal welding portal frame, an internal welding translational type welding turnover oblique beam device, at least one welding trolley traction column, a traction column connecting plate and at least one double-head-interval stepless adjustable welding trolley, the internal welding portal frame is located on a track and travels, a base of the internal welding translational type welding turnover oblique beam device is installed on the internal welding portal frame, one end of the welding trolley traction column is connected and installed on a rotating turntable of the internal welding translational type welding turnover oblique beam device through the traction column connecting plate, the double-head-interval stepless adjustable welding trolley is installed and connected to the other end of the welding trolley traction column, and the welding of the internal longitudinal seam is completed by inserting the plate unit U rib inside along with the movement of the internal welding portal frame.
Through the technical scheme, the inner-welding translation type welding turnover oblique beam device is adopted to carry the double-end-distance stepless adjustable welding trolley, the double-end-distance stepless adjustable welding trolley can be driven to complete integral rotation, the double-end-distance stepless adjustable welding trolley can complete positioning and welding of the longitudinal joint to be welded inside the plate unit U rib, efficiency is high, and welding quality is guaranteed.
Optionally, the outer welding translation type welding turnover oblique beam device, the inner welding translation type welding turnover oblique beam device and the plate unit welding platform are connected through bolts, so that synchronous rotation of the multi-stage outer welding gun head, the double-head interval stepless adjustable welding trolley and the U rib of the plate unit to be welded is guaranteed.
Through the technical scheme, the multistage external welding gun head, the double-head interval stepless adjustable welding trolley and the U rib of the plate unit to be welded rotate synchronously, so that the whole welding process is more stable, and the welding quality is ensured.
Optionally, the internal welding portal frame is connected with the external welding portal frame through an at least connecting rod, and the synchronous motion of the external welding system and the internal welding system is guaranteed, the connecting rod comprises an external welding portal frame connecting rod, an internal welding portal frame connecting rod, a walking box body and a walking wheel, one ends of the external welding portal frame connecting rod and the internal welding portal frame connecting rod are respectively connected and installed on the external welding portal frame and the internal welding portal frame, the other ends of the external welding portal frame connecting rod and the internal welding portal frame are connected and installed on the walking box body, and the walking wheel is installed in an inner cavity of the walking box body through a rotating shaft and is located on a track to walk.
By the technical scheme, the inner welding system and the outer welding system synchronously move integrally to complete inner and outer synchronous welding.
The welding process of the ship position submerged arc welding system with the plate unit U rib inner longitudinal seam and the plate unit U rib outer longitudinal seam synchronized integrally is characterized in that: the method comprises the following specific steps:
hoisting the U ribs of the plate units to a plate unit welding platform by using a hoisting gantry;
the plate unit reversible deformation welding positioner presses a plate unit U rib to generate predeformation, and the plate unit reversible deformation welding positioner is fixed on a bearing surface of a plate unit welding platform through a fixing hook;
the method comprises the following steps that an outer welding translation type welding turnover oblique beam device rotating turntable, an inner welding translation type welding turnover oblique beam device rotating turntable and a plate unit welding platform are kept in horizontal positions, and an outer welding portal frame and an inner welding portal frame synchronously and integrally move along a track until a multi-stage outer welding gun head and a double-head spacing stepless adjustable welding trolley move from the end head to the end tail of a U rib of a plate unit;
synchronously turning a rotating turntable of the external welding translation type welding turnover oblique beam device, a rotating turntable of the internal welding translation type welding turnover oblique beam device and a plate unit welding platform to a welding ship position, wherein the welding ship position refers to a position where a U rib of a plate unit rotates 30-40 degrees clockwise, and the multi-stage external welding gun head and a welding gun head of a double-head interval stepless adjustable welding trolley are adjusted to perform alignment before welding;
synchronously and integrally returning the outer welding portal frame and the inner welding portal frame along the track, simultaneously aligning a multi-stage outer welding gun head and a welding gun head of the double-head spacing stepless adjustable welding trolley to the inner and outer longitudinal seams of the U rib of the plate unit and automatically and synchronously submerged-arc welding the inner and outer longitudinal seams from the tail end of the U rib of the plate unit to the end head, and finishing the welding of the longitudinal seam at one side;
synchronously turning a rotating turntable of the external welding translation type welding turnover oblique beam device, a rotating turntable of the internal welding translation type welding turnover oblique beam device and a plate unit welding platform to a horizontal position;
synchronously and integrally moving the outer welding portal frame and the inner welding portal frame along a track until the multi-stage outer welding gun head and the double-head spacing stepless adjustable welding trolley move from the end of the U rib of the plate unit to the end tail;
synchronously turning a rotating turntable of the external welding translation type welding turnover oblique beam device, a rotating turntable of the internal welding translation type welding turnover oblique beam device and a plate unit welding platform to another welding ship position, wherein the other welding ship position refers to a position where a plate unit U rib rotates 30-40 degrees anticlockwise, and adjusting a multi-stage external welding gun head and a welding gun head of a double-head interval stepless adjustable welding trolley to align to a longitudinal seam end on the non-welding side of the plate unit U rib and aligning before welding;
synchronously and integrally returning the outer welding portal frame and the inner welding portal frame along the track again, simultaneously aligning a multi-stage outer welding gun head and a welding gun head of the double-head spacing stepless adjustable welding trolley to the inner and outer longitudinal seams of the U rib of the plate unit and automatically and synchronously submerged-arc welding the inner and outer longitudinal seams from the tail end of the U rib of the plate unit to the end head, and finishing the welding of the longitudinal seam at the other side;
synchronously overturning and recovering the rotating turntable of the external welding translation type welding overturning inclined beam device, the rotating turntable of the internal welding translation type welding overturning inclined beam device and the plate unit welding platform to a horizontal position;
step, the plate unit reversible deformation welding positioner assembling and disassembling machine compresses the U ribs of the plate unit again, removes the fixing hooks and releases the U ribs of the plate unit from being fixed on the welding platform of the plate unit;
and step, hoisting the welded U-shaped ribs of the plate units to a temporary storage area of the U-shaped ribs of the plate units by the hoisting gantry, thereby completing the whole welding process.
By adopting the technical scheme, when the welding process is adopted for welding, the U ribs of the plate units do not need to move back and forth; the welding machine can finish internal and external welding by one-time hoisting, is convenient and efficient, and has good welding quality.
Optionally, the welding of the multistage external welding gun head and the double-head spacing stepless adjustable welding trolley adopts a submerged arc welding process.
By adopting the technical scheme, the submerged-arc welding process is adopted, so that the whole welding process is more efficient, and the welding quality is more stable.
Optionally, the welding position is a position where the U-rib of the plate unit is rotated by 30 ° clockwise, and the other welding position is a position where the U-rib of the plate unit is rotated by 30 ° counterclockwise.
Through the technical scheme, when the U ribs of the plate units rotate to the welding ship position of 30 degrees, the welding gun heads of the multi-stage external welding gun heads and the double-head interval stepless adjustable welding trolley are more conveniently positioned, and the welding quality can be better ensured.
In summary, the present application includes at least one of the following beneficial technical effects:
(1) the external welding equipment, the internal welding equipment, the hoisting device and the reversible assembling and disassembling machine are installed together, so that the field is saved to a great extent.
(2) The longitudinal rib plate units are positioned in the ship position during welding, so that welding can be synchronously performed by internal and external welding, and the working efficiency is greatly improved.
(3) The plate unit is assembled and disassembled in a reversible deformation mode on the plate unit welding platform, internal and external welding can be carried out synchronously, and working efficiency is improved.
(4) The assembly line operation can be completed in a mode that the welding gun moves and the workpiece is not moved.
(5) The assembly line is in place through one-time tooling, the transportation and repeated positioning work of heavy workpieces in a workshop is reduced, and the working efficiency and the welding quality are improved.
Drawings
FIG. 1 is a schematic structural view of a ship position submerged arc welding system for synchronously integrating inner and outer longitudinal seams of U ribs of a plate unit;
FIG. 2 is a schematic view of the connection structure of the outer welding system and the inner welding system of the present invention;
FIG. 3 is a schematic structural diagram of the working state of the plate unit reversible deformation welding positioner assembling and disassembling machine of the invention;
FIG. 4 is a side view schematic of the invention shown in FIG. 4;
FIG. 5 is a schematic structural view of an external welding translation type welding turnover oblique beam device of the present invention;
FIG. 6 is a schematic structural diagram of a multi-stage external welding gun head mounted on the external welding translation type welding turnover oblique beam device of the invention;
FIG. 7 is a schematic structural view of the double-head spacing stepless adjustable welding tractor of the invention;
FIG. 8 is a schematic structural view of a U-rib of the plate unit of the present invention;
fig. 9 is a schematic cross-sectional view of a U-rib of a plate unit of the present invention.
Description of reference numerals: 1. a track; 2. a plate unit welding platform; 21. the movable tire frame vehicle can change positions; 22. a fixed base; 3. a plate unit reversible deformation welding positioner; 4. an external welding system; 41. externally welding a portal frame; 42. an external welding translation type welding turnover oblique beam device; 43. welding gun heads for multi-stage external welding; 5. an internal welding system; 51. internally welding a portal frame; 52. the inner welding can be used for welding the turnover oblique beam device in a translation mode; 53. welding a trolley traction column; 54. a traction column connecting plate; 55. the double-head spacing stepless adjustable welding tractor; 6. a connecting rod; 61. externally welding a portal frame connecting rod; 62. internally welding a portal frame connecting rod; 63. a traveling box body; 10. a plate unit U rib.
Detailed Description
The present application is described in further detail below with reference to fig. 1-9.
The embodiment of the application discloses a plate unit U rib inner and outer longitudinal seam synchronous integrated ship position submerged arc welding system and a technology thereof.
Referring to fig. 1 to 9, the ship position submerged arc welding system for synchronously integrating the inner longitudinal seam and the outer longitudinal seam of the U rib of the plate unit comprises a track 1, a plate unit welding platform 2, a plate unit reversible deformation welding positioner assembling and disassembling machine 3, an outer welding system 4 and an inner welding system 5, wherein the plate unit welding platform 2 is located in the middle of the track 1 and used for bearing and fixing the U rib 10 of the plate unit to be welded, the plate unit reversible deformation welding positioner assembling and disassembling machine 3 is located on the track 1 and travels and used for reversely positioning and assembling the U rib 10 of the plate unit to be welded on a bearing surface of the plate unit welding platform 2, the outer welding system 4 is located on the track 1 and travels and used for performing multistage submerged arc welding on two longitudinal seams on the outer side of the U rib 10 of the plate unit, and the inner welding system 5 is located on the track 1 and travels and used for completing welding of the inner longitudinal seams of the U rib 10 of the plate unit to be welded.
The plate unit reversible deformation welding positioner assembling and disassembling machine 3 is adopted to be matched with a reversible deformation positioning installation mode for handling the U-shaped ribs of the order worker, the traveling crane hoisting times are greatly reduced, the production efficiency of the device is improved, the external welding system 4 and the internal welding system 5 can simultaneously complete the internal welding and the external welding of the U-shaped ribs 10 of the plate unit to be welded, the welding efficiency is improved, the welding quality is guaranteed, and the deformation influence caused by multiple times of welding is avoided.
The plate unit welding platform 2 is composed of a position-variable movable jig frame vehicle 21 and a fixed base 22, the fixed base 22 is installed on a bearing surface of the position-variable movable jig frame vehicle 21 and used for reversely deforming and positioning the fixed plate unit U ribs 10, and the position-variable movable jig frame vehicle 21 can drive the positioned and fixed plate unit U ribs 10 to rotate by a designated angle.
The plate unit welding stage 2 can satisfy the fixing and rotation of the plate unit U rib 10 by a designated angle.
The plate unit welding platform 2 can drive the plate unit U rib 10 to rotate clockwise or anticlockwise by 0-45 degrees.
The outer welding system 4 comprises an outer welding portal frame 41, an outer welding translation type welding turnover oblique beam device 42 and a multi-stage outer welding gun head 43, the outer welding portal frame 41 is located on the track 1 to travel, a base of the outer welding translation type welding turnover oblique beam device 42 is installed on the outer welding portal frame 41, and the multi-stage outer welding gun head 43 is installed on a rotating turntable of the outer welding translation type welding turnover oblique beam device 42 and used for performing multi-stage submerged-arc welding on two longitudinal seams on the outer side of the U rib 10 of the plate unit.
The multi-stage external welding gun heads 43 are mounted by adopting the external welding translation type welding turnover oblique beam device 42, so that the multi-stage external welding gun heads 43 can be driven to complete integral rotation and translation, and the requirements of the subsequent process are met.
The internal welding system 5 comprises an internal welding portal frame 51, an internal welding translational type welding turnover oblique beam device 52, at least one welding trolley traction column 53, a traction column connecting plate 54 and at least one double-head-spacing stepless adjustable welding trolley 55, wherein the internal welding portal frame 51 is positioned on the track 1 and travels, a base of the internal welding translational type welding turnover oblique beam device 52 is installed on the internal welding portal frame 51, one end of the welding trolley traction column 53 is connected and installed on a rotating turntable of the internal welding translational type welding turnover oblique beam device 52 through the traction column connecting plate 54, the double-head-spacing stepless adjustable welding trolley 55 is installed and connected at the other end of the welding trolley traction column 53 and is inserted into the plate unit U rib 10 to complete welding of an internal longitudinal seam along with the movement of the internal welding portal frame 51.
The inner-welding translation type welding turnover oblique beam device 52 is adopted to carry the double-head-spacing stepless adjustable welding trolley 55, the double-head-spacing stepless adjustable welding trolley 55 can be driven to complete integral rotation, the double-head-spacing stepless adjustable welding trolley 55 can complete positioning and welding of longitudinal joints to be welded inside the plate unit U rib 10, efficiency is high, and welding quality is guaranteed.
The outer welding translation type welding turnover oblique beam device 42, the inner welding translation type welding turnover oblique beam device 52 and the plate unit welding platform 2 are connected through bolts, and synchronous rotation of the multi-stage outer welding gun head 43, the double-head spacing stepless adjustable welding trolley 55 and the U rib 10 of the plate unit to be welded is guaranteed.
The synchronous rotation of the multi-stage external welding gun head 43, the double-head interval stepless adjustable welding trolley 55 and the U rib 10 of the plate unit to be welded is ensured, the whole welding process is more stable, and the welding quality is ensured.
Interior welding portal frame 51 is connected through an at least connecting rod 6 between the portal frame 41 of welding outward, guarantee outer welding system 4 and the 5 synchronous motion of interior welding system, connecting rod 6 is including outer welding portal frame connecting rod 61, interior welding portal frame connecting rod 62, walking box 63 and walking wheel, the one end of outer welding portal frame connecting rod 61 and interior welding portal frame connecting rod 62 is connected respectively and is installed on outer welding portal frame 41 and interior welding portal frame 51, the other end is connected and is installed walking box 63, the walking wheel is installed at walking box 63 inner chamber through the pivot, and be located the walking on track 1.
The inner welding system and the outer welding system synchronously move integrally to complete the inner and outer synchronous welding.
The welding process of the ship position submerged arc welding system with the plate unit U rib inner longitudinal seam and the plate unit U rib outer longitudinal seam synchronized integrally is characterized in that: the method comprises the following specific steps:
step 7, synchronously and integrally moving the outer welding portal frame 41 and the inner welding portal frame 51 along the track 1 until the multi-stage outer welding gun heads 43 and the double-head spacing stepless adjustable welding trolley 55 move from the end of the U rib 10 of the plate unit to the end tail;
step 8, synchronously turning the rotating turntable of the external welding translation type welding turnover oblique beam device 42, the rotating turntable of the internal welding translation type welding turnover oblique beam device 52 and the plate unit welding platform 2 to another welding ship position, wherein the other welding ship position refers to a position where the plate unit U rib 10 rotates anticlockwise by 30-40 degrees, and aligning a multi-stage external welding gun head 43 and a welding gun head of the double-head interval stepless adjustable welding trolley 55 to a longitudinal seam end on the non-welding side of the plate unit U rib 10 and performing alignment before welding;
step 9, synchronously and integrally returning the outer welding portal frame 41 and the inner welding portal frame 51 along the track 1 again, simultaneously aligning the welding gun heads 43 of the multi-stage outer welding gun heads and the welding gun heads of the double-head spacing stepless adjustable welding trolley 55 to the inner longitudinal seams and the outer longitudinal seams of the U ribs 10 of the plate units, and automatically and synchronously carrying out submerged-arc welding on the inner longitudinal seams and the outer longitudinal seams from the end tails of the U ribs 10 of the plate units to the end heads to complete the welding of the longitudinal seams on the other side;
step 11, the plate unit reversible deformation welding positioner assembling and disassembling machine 3 compresses the plate unit U rib 10 again, detaches the fixing hook and releases the fixation of the plate unit U rib 10 on the plate unit welding platform 2;
and step 12, hoisting the welded plate unit U rib 10 to a temporary storage area of the plate unit U rib 10 by the hoisting gantry, and thus completing the whole welding process.
When the welding process is adopted for welding, the U ribs 10 of the plate units do not need to move back and forth; the welding machine can finish internal and external welding by one-time hoisting, is convenient and efficient, and has good welding quality.
The welding of the multi-stage external welding torch head 43 and the double-head spacing stepless adjustable welding trolley 55 adopts a submerged arc welding process.
And the submerged-arc welding process is adopted, so that the whole welding process is more efficient, and the welding quality is more stable.
The welding position is a position where the U rib 10 of the plate unit is rotated clockwise by 30 deg., and the other welding position is a position where the U rib 10 of the plate unit is rotated counterclockwise by 30 deg..
When the plate unit U rib 10 rotates to a welding ship position of 30 degrees, the welding gun heads 43 of the multi-stage external welding gun heads and the welding gun heads of the double-head spacing stepless adjustable welding trolley 55 are positioned more conveniently, and the welding quality can be ensured more conveniently.
The welding speed of the plate unit U rib inner and outer longitudinal seam synchronous integrated ship position submerged arc welding system is generally 350-550 mm/min, the welding wire diameter selection range of a multistage outer welding gun head 43 of the outer welding system is phi 1.6-5.0 mm, the welding wire diameter selection range of a double-head spacing stepless adjustable welding trolley 55 of the inner welding system is phi 1.0-2.4 mm, and the following parameters are set and tested for verifying the influence of the size of a ship position angle on welding quality during welding:
1. the welding speed of the equipment is 400 mm/min;
2. the diameter of an inner welding wire is phi 1.6mm, the welding current is 400A, and the welding voltage is 30V;
3. the diameter of an external welding wire is phi 3.2mm, the welding current is 590A, and the welding voltage is 30V;
a large number of tests were performed at different boat position angles, and the weld quality statistical data are shown in the following table:
| serial number | Angle of ship position | Appearance of weld | Macroscopic section | Effective penetration depth | Remarks for |
| 1 | 10° | Inclined bottom plate | Weld pool misalignment | 80％ | |
| 2 | 20° | Inclined bottom plate | Weld pool misalignment | 90％ | |
| 3 | 30° | Is aligned with | Coincidence of molten pool | 100％ | |
| 4 | 40° | Inclined U rib | Coincidence of molten pool | 100％ | Easy to weld through |
The following can be verified through experimental data: the berth angle of 30 degrees is the most suitable welding angle.
The implementation principle of the synchronous integrated ship position submerged arc welding system and the process thereof for the inner longitudinal seam and the outer longitudinal seam of the U rib of the plate unit in the embodiment of the application is as follows:
in particular, the U-shaped ribs are buckled on the surface of the steel plate as shown in figure 8.
Fig. 9 is a schematic cross-sectional view of a U-rib assembly of the plate unit. The steel plate surface is structural steel, the thickness B1 of the steel plate is more than or equal to 12mm, the width B is more than or equal to 800 and less than or equal to 4200mm, the length L is more than or equal to 1500 and less than or equal to 2450 mm, and the performance and the processing precision of the steel plate meet the relevant industry standards of China, the department of transportation and the like.
The U-shaped rib is structural steel, the thickness of the U-shaped rib is not less than 4 and not more than B2 and not more than 16mm, the height of the U-shaped rib is not less than 240 and not more than 320mm, the width of an upper opening of the U-shaped rib is not less than 150 and not more than 300mm, the width of a lower bottom of the U-shaped rib is not less than 280 and not more than 420mm, the U-shaped rib is rolled or cold-bent, the performance and the processing precision of the U-shaped rib meet related industrial standards of China, the department of transportation and the like, and grooves can be opened or natural grooves can be adopted on two sides of the lower corner of the U-shaped rib. And the U ribs are positioned and arranged on the steel plate according to the design requirement, and the U ribs are attached to the steel plate as closely as possible.
Hoisting the gantry to hoist the plate unit U rib 10 to the plate unit welding platform 2, pressing the plate unit U rib 10 on the bearing surface of the plate unit welding platform 2 by the plate unit reversible deformation welding positioner assembling and disassembling machine 3, fixing by using a fixing hook, and resetting the rear plate unit reversible deformation welding positioner assembling and disassembling machine 3;
the rotating turntable of the external welding translation type welding turnover oblique beam device 42, the rotating turntable of the internal welding translation type welding turnover oblique beam device 52 and the plate unit welding platform 2 are all kept at original horizontal positions, and meanwhile, the external welding portal frame 41 and the internal welding portal frame 51 synchronously and integrally move along the track 1 until the multi-stage external welding gun head 43 and the double-head spacing stepless adjustable welding trolley 55 move from the end to the tail of the U rib 10 of the plate unit;
the rotating turntable of the external welding translation type welding turnover oblique beam device 42, the rotating turntable of the internal welding translation type welding turnover oblique beam device 52 and the plate unit welding platform 2 are synchronously turned to a welding ship position, the welding ship position refers to a position where the plate unit U rib 10 rotates 30 degrees clockwise, and the multi-stage external welding gun heads 43 and the welding gun heads of the double-head spacing stepless adjustable welding trolley 55 are adjusted to perform alignment before welding;
the external welding portal frame 41 and the internal welding portal frame 51 synchronously and integrally return along the track 1, meanwhile, the welding gun heads 43 of the multi-stage external welding gun heads and the welding gun heads of the double-head spacing stepless adjustable welding trolley 55 simultaneously aim at the internal and external longitudinal seams of the U ribs 10 of the plate units and are automatically and synchronously submerged-arc welded to the ends from the end tails of the U ribs 10 of the plate units, and the welding process of the longitudinal seams at one side is completed by adopting a submerged-arc welding process;
the outer welding translation type welding turnover oblique beam device 42 rotates a rotary table, the inner welding translation type welding turnover oblique beam device 52 rotates the rotary table and the plate unit welding platform 2 to synchronously turn to a horizontal position; the outer welding portal frame 41 and the inner welding portal frame 51 synchronously and integrally move along the track 1 until the multi-stage outer welding gun heads 43 and the double-head spacing stepless adjustable welding trolley 55 move from the end of the U rib 10 of the plate unit to the end tail;
the rotating turntable of the external welding translation type welding turnover oblique beam device 42, the rotating turntable of the internal welding translation type welding turnover oblique beam device 52 and the plate unit welding platform 2 are synchronously turned to another welding ship position, the other welding ship position refers to a position where the plate unit U rib 10 rotates 30 degrees anticlockwise, and the welding gun heads 43 of the multi-stage external welding gun heads and the double-head interval stepless adjustable welding trolley 55 are adjusted to align to the longitudinal seam end head of the non-welded side of the plate unit U rib 10;
the external welding portal frame 41 and the internal welding portal frame 51 synchronously and integrally return along the track 1 again, meanwhile, the welding gun heads 43 of the multi-stage external welding gun heads and the welding gun heads of the double-head spacing stepless adjustable welding trolley 55 are simultaneously aligned to the internal and external longitudinal seams of the U rib 10 of the plate unit and are automatically and synchronously submerged-arc welded to the end heads from the end tails of the U rib 10 of the plate unit, and the welding process of the longitudinal seams on the other side is completed by adopting a submerged-arc welding process;
the outer welding translation type welding turnover oblique beam device 42 rotates a turntable, the inner welding translation type welding turnover oblique beam device 52 rotates the turntable and the plate unit welding platform 2 to synchronously turn over and restore to the horizontal position;
the plate unit reversible deformation welding positioner assembling and disassembling machine 3 runs above the plate unit U rib 10 again, compresses the plate unit U rib 10, removes the fixing hook and releases the fixing of the plate unit U rib 10 on the plate unit welding platform 2;
and hoisting the welded plate unit U rib 10 to a temporary storage area of the plate unit U rib 10 by the hoisting gantry, thus finishing the whole welding process.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above 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 (10)
1. A ship position submerged arc welding system with synchronous inner and outer longitudinal seams of a U-shaped rib of a plate unit is characterized by comprising a track (1), a plate unit welding platform (2), a plate unit reversible deformation welding positioner (3), an outer welding system (4) and an inner welding system (5), wherein the plate unit welding platform (2) is positioned in the middle of the track (1), used for bearing and fixing a U rib (10) of a plate unit to be welded, the plate unit reversible deformation welding positioner (3) is positioned on a track (1) to walk, used for reversely deforming, positioning and clamping a U rib (10) of a plate unit to be welded on a bearing surface of a plate unit welding platform (2), the outer welding system (4) is positioned on the track (1) to walk, the multi-stage submerged arc welding device is used for performing multi-stage submerged arc welding on two longitudinal seams on the outer sides of the U ribs (10) of the plate units, and the internal welding system (5) is located on the track (1) to walk and used for completing welding of the longitudinal seams inside the U ribs (10) of the plate units to be welded.
2. The synchronous integrated ship position submerged arc welding system for the inner longitudinal seam and the outer longitudinal seam of the U-shaped rib of the plate unit according to claim 1, which is characterized in that: the plate unit welding platform (2) is composed of a position-variable movable jig frame vehicle (21) and a fixed base (22), the fixed base (22) is installed on a bearing surface of the position-variable movable jig frame vehicle (21) and used for reversely deforming and positioning the U ribs (10) of the fixing plate units, and the plate unit welding platform (2) can drive the U ribs (10) of the fixing plate units to rotate by a designated angle.
3. The synchronous integrated ship position submerged arc welding system for the inner longitudinal seam and the outer longitudinal seam of the U-shaped rib of the plate unit according to claim 2, characterized in that: the plate unit welding platform (2) can drive the plate unit U rib (10) to rotate clockwise or anticlockwise by 0-45 degrees.
4. The synchronous integrated ship position submerged arc welding system for the inner longitudinal seam and the outer longitudinal seam of the U-shaped rib of the plate unit according to claim 1, which is characterized in that: the outer welding system (4) comprises an outer welding portal frame (41), an outer welding translation type welding turnover oblique beam device (42) and a multi-stage outer welding gun head (43), the outer welding portal frame (41) is located on the track (1) to walk, a base of the outer welding translation type welding turnover oblique beam device (42) is installed on the outer welding portal frame (41), and the multi-stage outer welding gun head (43) is installed on a rotating turntable of the outer welding translation type welding turnover oblique beam device (42) and used for performing multi-stage submerged arc welding on two longitudinal seams on the outer side of the U rib unit (10).
5. The synchronous integrated ship position submerged arc welding system for the inner longitudinal seam and the outer longitudinal seam of the U-shaped rib of the plate unit according to claim 1, which is characterized in that: the inner welding system (5) comprises an inner welding portal frame (51), an inner welding translational type welding turnover oblique beam device (52), at least one welding trolley traction column (53), a traction column connecting plate (54) and at least one double-head space stepless adjustable welding trolley (55), the internal welding portal frame (51) is positioned on the track (1) to travel, the base of the internal welding translational type welding turnover oblique beam device (52) is arranged on the internal welding portal frame (51), one end of the welding tractor traction column (53) is connected and arranged on a rotating turntable of the internal welding translational type welding turnover oblique beam device (52) through a traction column connecting plate (54), a double-head spacing stepless adjustable welding tractor (55) is arranged and connected at the other end of the welding tractor traction column (53), and the welding to the inner longitudinal seam is completed by inserting the welding machine into the U rib (10) of the plate unit along with the movement of the internal welding portal frame (51).
6. The synchronous integrated ship position submerged arc welding system for the inner longitudinal seam and the outer longitudinal seam of the U rib of the plate unit according to claim 4 or 5, characterized in that: the outer welding translation type welding turnover oblique beam device (42), the inner welding translation type welding turnover oblique beam device (52) and the plate unit welding platform (2) are connected through bolts, and synchronous rotation of the multi-stage outer welding gun head (43), the double-end spacing stepless adjustable welding trolley (55) and the U rib (10) of the plate unit to be welded is guaranteed.
7. The synchronous integrated ship position submerged arc welding system for the inner longitudinal seam and the outer longitudinal seam of the U rib of the plate unit according to claim 4 or 5, characterized in that: interior welding portal frame (51) and outer welding portal frame (41) are connected through an at least connecting rod (6) between, guarantee outer welding system (4) and interior welding system (5) synchronous motion, connecting rod (6) are including outer welding portal frame connecting rod (61), interior welding portal frame connecting rod (62), walking box (63) and walking wheel, the one end of outer welding portal frame connecting rod (61) and interior welding portal frame connecting rod (62) is connected respectively and is installed on outer welding portal frame (41) and interior welding portal frame (51), and walking box (63) are installed to the other end connection, the walking wheel is installed at walking box (63) inner chamber through the pivot to be located walking on track (1).
8. The welding process of the ship position submerged arc welding system with the synchronous integration of the inner longitudinal seam and the outer longitudinal seam of the U rib of the plate unit according to any one of claims 1 to 7, is characterized in that: the method comprises the following specific steps:
step 1, hoisting a U rib (10) of a plate unit to a welding platform 2 of the plate unit by using a hoisting gantry;
step 2, a plate unit reversible deformation welding positioner (3) compresses a plate unit U rib (10) to generate predeformation, and the plate unit U rib is fixed on a bearing surface of a plate unit welding platform (2) through a fixing hook;
step 3, the rotating turntable of the outer welding translation type welding turnover oblique beam device (42), the rotating turntable of the inner welding translation type welding turnover oblique beam device (52) and the plate unit welding platform (2) are kept at horizontal positions, and meanwhile, the outer welding portal frame (41) and the inner welding portal frame (51) synchronously and integrally move along the track (1) until the multi-stage outer welding gun head (43) and the double-head spacing stepless adjustable welding trolley (55) move from the end of the plate unit U rib (10) to the end tail;
step 4, synchronously turning a rotating turntable of the external welding translation type welding turning oblique beam device (42), a rotating turntable of the internal welding translation type welding turning oblique beam device (52) and the plate unit welding platform (2) to a welding ship position, wherein the welding ship position refers to a position where the plate unit U rib (10) rotates clockwise by 30-40 degrees, and adjusting a multi-stage external welding gun head (43) and a welding gun head of a double-head interval stepless adjustable welding trolley (55) to perform alignment before welding;
step 5, synchronously and integrally returning the outer welding portal frame (41) and the inner welding portal frame (51) along the track (1), simultaneously aligning the multi-stage outer welding gun heads (43) and the welding gun heads of the double-head spacing stepless adjustable welding trolley (55) to the inner longitudinal seams and the outer longitudinal seams of the U ribs (10) of the plate units, automatically and synchronously performing submerged-arc welding on the inner longitudinal seams and the outer longitudinal seams of the U ribs (10) of the plate units to the end heads, and finishing the welding of the longitudinal seams at one side;
step 6, synchronously turning the rotating turntable of the outer welding translation type welding turning inclined beam device (42), the rotating turntable of the inner welding translation type welding turning inclined beam device (52) and the plate unit welding platform (2) to a horizontal position;
step 7, the outer welding portal frame (41) and the inner welding portal frame (51) synchronously and integrally move along the track (1) until the multi-stage outer welding gun heads (43) and the double-head spacing stepless adjustable welding trolley (55) move from the end of the U rib (10) of the plate unit to the end tail;
step 8, synchronously turning over a rotating turntable of the external welding translation type welding turnover oblique beam device (42), a rotating turntable of the internal welding translation type welding turnover oblique beam device (52) and the plate unit welding platform (2) to another welding ship position, wherein the other welding ship position refers to a position where the plate unit U rib (10) rotates anticlockwise by 30-40 degrees, and aligning a welding gun head of a multi-stage external welding gun head (43) and a welding gun head of a double-head interval stepless adjustable welding trolley (55) to a longitudinal seam end of the non-welding side of the plate unit U rib (10) and aligning before welding;
step 9, synchronously and integrally returning the outer welding portal frame (41) and the inner welding portal frame (51) along the track (1) again, simultaneously aligning the multi-stage outer welding gun heads (43) and the welding gun heads of the double-head spacing stepless adjustable welding trolley (55) to the inner longitudinal seams and the outer longitudinal seams of the U ribs (10) of the plate units, automatically and synchronously performing submerged-arc welding on the inner longitudinal seams and the outer longitudinal seams of the U ribs (10) of the plate units to the end heads, and finishing the welding of the longitudinal seams on the other side;
step 10, synchronously overturning and recovering a rotating turntable of an outer welding translation type welding overturning inclined beam device (42), a rotating turntable of an inner welding translation type welding overturning inclined beam device (52) and a plate unit welding platform (2) to a horizontal position;
step 11, the plate unit reversible deformation welding tire position assembling and disassembling machine (3) compresses the plate unit U rib (10) again, the fixing hook is disassembled, and the fixing of the plate unit U rib (10) on the plate unit welding platform (2) is released;
and step 12, hoisting the welded plate unit U rib (10) to a temporary storage area of the plate unit U rib (10) by the hoisting gantry, and finishing the whole welding process.
9. The welding process of the plate unit U rib inner and outer longitudinal seam synchronous integrated ship position submerged arc welding system according to claim 8, characterized in that: the welding of the multistage external welding gun heads (43) and the double-head spacing stepless adjustable welding trolley (55) adopts a submerged arc welding process.
10. The welding process of the plate unit U rib inner and outer longitudinal seam synchronous integrated ship position submerged arc welding system according to claim 8, characterized in that: the welding ship position is a position where the U-shaped rib (10) of the plate unit rotates clockwise by 30 degrees, and the other welding ship position is a position where the U-shaped rib (10) of the plate unit rotates anticlockwise by 30 degrees.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210166212.1A CN114393284A (en) | 2022-02-23 | 2022-02-23 | Plate unit U rib inner and outer longitudinal seam synchronous integrated ship position submerged arc welding system and process thereof |
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| CN202210166212.1A CN114393284A (en) | 2022-02-23 | 2022-02-23 | Plate unit U rib inner and outer longitudinal seam synchronous integrated ship position submerged arc welding system and process thereof |
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