CN110666414A - Marine pipeline butt welding device and welding method thereof - Google Patents
Marine pipeline butt welding device and welding method thereof Download PDFInfo
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- CN110666414A CN110666414A CN201911125256.4A CN201911125256A CN110666414A CN 110666414 A CN110666414 A CN 110666414A CN 201911125256 A CN201911125256 A CN 201911125256A CN 110666414 A CN110666414 A CN 110666414A
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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
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
- B23K37/0533—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor external pipe alignment clamps
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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
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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
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
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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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention provides an ocean pipeline butt welding device and a welding method thereof, wherein the ocean pipeline butt welding device comprises a first conveying mechanism and a second conveying mechanism which are used for conveying and storing two different pipe sections respectively and are arranged correspondingly to each other; the first conveying mechanism and the second conveying mechanism respectively comprise a conveying structure and a storage structure arranged at the outlet end of the conveying structure; the butt welding device is used for butt welding and welding the two pipe sections moved into the storage structure and comprises a butt structure arranged corresponding to the storage structure and a welding structure used for welding and fixing the pipe sections; the invention can continuously weld two sections of pipelines, improves the working efficiency and ensures the welding precision.
Description
Technical Field
The invention relates to a welding device, in particular to an ocean pipeline butt welding device and an ocean pipeline butt welding method.
Background
Welding, which is a manufacturing process and technology for joining metals or other materials such as plastics in a heating, high-temperature or high-pressure manner, is frequently used in daily life, particularly in the connection of marine pipelines, welding is the only technology for connecting pipeline joints, and equipment for fixing a welded part is needed during welding, which is a welding operation platform.
The existing welding operation platform is relatively identical in structure, but still has some defects or shortcomings, for example, the operation platform needs personnel to place welding parts, the placing distance of the two welding parts can be controlled only according to the experience of constructors, and pipelines need to be rotated in the welding process, so that the operation platform is complex to use, low in working efficiency and incapable of realizing batch welding operation.
Disclosure of Invention
The invention provides an ocean pipeline butt welding device and a welding method thereof aiming at the problems, which can continuously weld two sections of pipelines, improve the working efficiency and ensure the welding precision.
The specific technical scheme is as follows:
an ocean pipeline butt welding device comprises a first conveying mechanism and a second conveying mechanism which are used for conveying and storing two different pipe sections respectively and are arranged correspondingly to each other; the first conveying mechanism and the second conveying mechanism respectively comprise a conveying structure and a storage structure arranged at the outlet end of the conveying structure; and the butt welding device is used for butt-jointing and welding the two pipe sections moved to the storage structure, and comprises a butt-jointing structure and a welding structure, wherein the butt-jointing structure is correspondingly arranged with the storage structure, and the welding structure is used for welding and fixing the pipe sections.
Further, the conveying structure comprises a first supporting platform, a first supporting groove with an opening at the top is arranged on the first supporting platform, a plurality of first rotating rollers are arranged in the first supporting groove in parallel, and the pipe section placed above the first supporting groove moves from the inlet end to the outlet end of the conveying structure through the rotation of the first rotating rollers; the first supporting platform is used for fixing two sides of the first rotating roller and is respectively horizontally provided with a first connecting plate, the outer side of the first connecting plate is vertically provided with a supporting side wall, the top of the supporting side wall is higher than the top of the first supporting platform, the bottom of the supporting side wall is lower than the bottom of the first supporting platform, and one side of the supporting side wall close to the outlet end extends outwards and exceeds the outlet end of the first supporting platform;
two sides of a supporting shaft of the first rotating roller respectively penetrate through the first supporting grooves to be connected with the two supporting side walls, parts of the supporting shaft, which are positioned above the two first connecting plates, are respectively sleeved with a supporting sleeve, and the outer diameter of each supporting sleeve is equal to that of the first rotating roller;
the same end of each first rotating roller penetrates through the corresponding supporting side wall to fix a first gear, all the first gears are connected through chains, and one first gear is driven to rotate through a first motor, so that the first rotating rollers and the supporting sleeve synchronously rotate.
Furthermore, the storage structure comprises a first partition plate fixed at the outlet end of the first supporting platform and a second partition plate fixed between the two supporting side walls, a storage channel is formed between the first partition plate and the second partition plate and is in clearance fit with the corresponding pipe sections, and the pipe sections are arranged in the storage channel in an up-and-down overlapped mode.
Furthermore, the length of the first partition board is smaller than that of the second partition board, and the bottom of the storage channel is lower than that of the supporting side wall;
the first partition plate and the second partition plate are correspondingly provided with a plurality of groups of limiting assemblies respectively, the limiting assemblies are located below the bottom of the supporting side wall, and the distance between the limiting assemblies and the bottom of the supporting side wall is smaller than the outer diameter of the pipe section.
Furthermore, the limiting assembly is arranged in a limiting groove of the first partition plate or the second partition plate; the limiting assembly comprises a plurality of guide rods horizontally fixed in a limiting groove, a fixing plate is slidably arranged on each guide rod, a bearing plate is horizontally fixed at the inner side end of each fixing plate, the bearing plate penetrates through the limiting groove to be arranged in the storage channel, a first spring is sleeved on each guide rod, and the first spring is pressed between the outer side end of each fixing plate and the limiting position;
the upper surface of the bearing plate is obliquely arranged downwards from outside to inside;
the limiting assemblies on the first partition plate and the second partition plate are correspondingly arranged, and the pipe section can be placed on the bearing plate.
Furthermore, the butt joint structure comprises two pipe taking structures which are respectively arranged corresponding to the two storage structures, and the outer sides of the two pipe taking structures are respectively provided with a first butt joint component and a second butt joint component;
the pipe taking structure comprises a second supporting platform, two first hydraulic cylinders are vertically arranged on the second supporting platform, the first hydraulic cylinders are connected with each other and push the grabbing structure to move up and down, and the grabbing structure is used for locking and fixing a corresponding pipe section;
when the grabbing structure locks and fixes the pipe section, the first hydraulic cylinder drives the grabbing structure to drive the pipe section to move downwards, and the bearing plates on two sides of the storage channel move outwards in the moving process; when the pipe section passes through the pressure bearing plate, the pressure bearing plate resets under the action of the first spring and stops and limits the pipe section positioned above the pressure bearing plate;
the first butt joint assembly and the second butt joint assembly respectively comprise a third supporting platform, a first lead screw is rotatably arranged on the third supporting platform, and the first lead screw is parallel to the axial direction of the stored pipe section; the first screw rod is connected with an output shaft of the second motor, a first fixed seat is arranged on the first screw rod in a threaded fit manner, and the second motor can drive the first fixed seat to move by rotating; a first pneumatic clamping jaw is rotatably arranged on one side wall, close to the tube taking structure, of the first fixing seat, and the first pneumatic clamping jaw is driven to rotate by a third motor; the inner wall of the clamping jaw of the first pneumatic clamping jaw is rotatably provided with a pressing wheel, the rotating direction of the pressing wheel is the same as the axial direction of the pipe section, when the first pneumatic clamping jaw grabs the corresponding end of the fixed pipe section, the pressing wheel is pressed on the outer wall of the pipe section, and at the moment, the pipe section can only move along the axial direction of the pipe section; after the first pneumatic clamping jaws of the first butt joint assembly and the second butt joint assembly move relatively, one pipe section is pressed and inserted into the other pipe section, the third motor rotates to drive the first pneumatic clamping jaws to rotate, and the first pneumatic clamping jaws drive the pipe sections clamped by the first pneumatic clamping jaws to rotate.
Furthermore, the grabbing structure comprises a fourth supporting platform fixed on the first hydraulic cylinder, two grabbing plates with arc structures are movably arranged on the fourth supporting platform, the grabbing plates are pushed to move through an electric push rod, and balls are arranged on the inner walls of the grabbing plates;
when the first hydraulic cylinder drives the grabbing structure to move upwards until the two grabbing plates are respectively positioned at two sides of the pipe section, the electric driving drives the two grabbing plates to move towards each other until the hoop is positioned on the outer wall of the pipe section, and then the pipe section can be locked and fixed.
Furthermore, the welding structure comprises a fifth supporting platform fixed on the second hydraulic cylinder, and the fifth supporting platform is arranged below the two pipe sections which are mutually inserted;
a linear guide rail is arranged on the fifth supporting platform and is parallel to the axis direction of the pipe section, a welding gun fixing seat is movably arranged on the linear guide rail, and a welding gun is fixed on the welding gun fixing seat; the welding is used for welding two pipe sections which are mutually inserted.
An ocean pipeline butt welding method comprises the following steps:
(1) continuously conveying the flat pipe sections and the flared pipe sections into a storage structure through conveying structures of a first conveying mechanism and a second conveying mechanism respectively, wherein flared ends of the flared pipe sections are arranged towards the flat pipe sections;
(2) the pipelines in the storage structure are sequentially stacked above the limiting assembly;
(3) when the first hydraulic cylinder drives the grabbing structure to move upwards until the two grabbing plates are respectively positioned at two sides of the pipe section, the electric pushing device pushes the two grabbing plates to move towards each other until the hoop is positioned on the outer wall of the pipe section, and then the pipe section can be locked and fixed;
(4) when the grabbing structure locks and fixes the pipe section, the first hydraulic cylinder drives the grabbing structure to drive the pipe section to move downwards, and the bearing plates on two sides of the storage channel move outwards in the moving process; when the pipe section passes through the pressure bearing plate, the pressure bearing plate resets under the action of the first spring and stops and limits the pipe section positioned above the pressure bearing plate;
(5) the first butt joint assembly and the second butt joint assembly respectively move oppositely under the action of the second motor, and after the two first pneumatic clamping jaws clamp the two pipe sections, the first fixing seat of the first butt joint assembly continuously moves until the two pipe sections are mutually spliced and pressed;
(6) the position of a welding gun is adjusted through a second hydraulic cylinder and the linear guide rail, and the two third motors are started to enable the rotating speeds of the two third motors to be the same, so that the two pipe sections rotate, and in the rotating process, the joint can be welded through the welding gun;
(7) after the welding is finished, the grabbing structure is moved downwards until the pipe section is separated from the storage channel, and the grabbing structure is loosened to take down the welded pipe.
The invention has the beneficial effects that:
1) the invention can continuously weld two sections of pipe sections, thereby improving the working efficiency and ensuring the welding precision;
2) the first conveying structure and the second conveying structure are good in stability and continuity, and the continuous feeding of pipe sections is realized;
3) the invention realizes the clamping and butt joint of the pipe sections by matching the storage structure and the butt joint structure, further improves the efficiency and ensures the accuracy.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the first conveyor mechanism and the second conveyor mechanism;
FIG. 3 is a cross-sectional view of the transport structure of FIG. 2 in the direction A-A;
FIG. 4 is a sectional view taken in the direction B-B of the storage structure of FIG. 2;
FIG. 5 is a cross-sectional view of a grasping configuration;
FIG. 6 is a diagram of a second docking assembly;
fig. 7 is a schematic structural view of a welded structure.
Reference numerals
The device comprises a pipe section 1, a first conveying mechanism 2, a second conveying mechanism 3, a conveying structure 4, a storage structure 5, a butt joint structure 6 and a welding structure 7;
a first supporting platform 401, a first supporting groove 402, a first rotating roller 403, a first connecting plate 404, a supporting side wall 405, a supporting sleeve 406, a first gear 407, a chain 408 and a first motor 409;
a first partition plate 501, a second partition plate 502, a storage channel 503, a limiting component 504, a limiting groove 505, a guide rod 506, a fixing plate 507, a bearing plate 508 and a first spring 509;
the device comprises a pipe taking structure 601, a second supporting platform 602, a first hydraulic cylinder 603, a grabbing structure 604, a third supporting platform 605, a first lead screw 606, a second motor 607, a first fixed seat 608, a first pneumatic clamping jaw 609, a pressing wheel 610, a fourth supporting platform 611, a grabbing plate 612, a ball 613, a first butt joint assembly 614, a second butt joint assembly 615, a third motor 616 and an electric push rod 617;
second hydraulic cylinder 701, fifth support platform 702, linear guide 703, welding gun fixing base 704, welding gun 705.
Detailed Description
In order to make the technical scheme of the invention clearer and clearer, the invention is further described with reference to the accompanying drawings, and any scheme obtained by carrying out equivalent replacement and conventional reasoning on the technical characteristics of the technical scheme of the invention falls into the protection scope of the invention.
As shown in the figure, the marine pipeline butt welding device comprises a first conveying mechanism 2 and a second conveying mechanism 3 which are used for conveying and storing two different pipe sections 1 respectively and are arranged correspondingly to each other; the first conveying mechanism and the second conveying mechanism respectively comprise a conveying structure 4 and a storage structure 5 arranged at the outlet end of the conveying structure; and the butt welding device is used for butt-jointing and welding the two pipe sections moved into the storage structure, and comprises a butt-jointing structure 6 and a welding structure 7, wherein the butt-jointing structure 6 corresponds to the storage structure, and the welding structure is used for welding and fixing the pipe sections.
Further, the conveying structure comprises a first supporting platform 401, a first supporting groove 402 with an opening at the top is arranged on the first supporting platform, a plurality of first rotating rollers 403 are arranged in the first supporting groove in parallel, and the pipe sections placed above the first supporting groove are moved from the inlet end to the outlet end of the conveying structure through the rotation of the first rotating rollers; the first supporting platform is used for fixing two sides of the first rotating roller and is respectively horizontally provided with a first connecting plate 404, the outer side of the first connecting plate is vertically provided with a supporting side wall 405, the top of the supporting side wall is higher than the top of the first supporting platform, the bottom of the supporting side wall is lower than the bottom of the first supporting platform, and one side of the supporting side wall close to the outlet end extends outwards and exceeds the outlet end of the first supporting platform;
two sides of a supporting shaft of the first rotating roller respectively penetrate through the first supporting grooves to be connected with the two supporting side walls, a supporting sleeve 406 is respectively sleeved on the part of the supporting shaft above the two first connecting plates, and the outer diameter of the supporting sleeve is equal to that of the first rotating roller;
the same end of each first roller passes through the corresponding supporting side wall to be fixed with a first gear 407, all the first gears are connected through a chain 408, and one of the first gears is driven to rotate by a first motor 409, so that the first rollers and the bearing sleeves rotate synchronously.
Further, the storage structure comprises a first partition 501 fixed at the outlet end of the first support platform and a second partition 502 fixed between the two support side walls, a storage channel 503 is formed between the first partition and the second partition, the storage channel is in clearance fit with the corresponding pipe sections, and the pipe sections are arranged in the storage channel in an up-and-down overlapping manner.
Furthermore, the length of the first partition board is smaller than that of the second partition board, and the bottom of the storage channel is lower than that of the supporting side wall;
a plurality of groups of limiting assemblies 504 are correspondingly arranged on the first partition plate and the second partition plate respectively, the limiting assemblies are positioned below the bottoms of the supporting side walls, and the distance between the limiting assemblies and the bottoms of the supporting side walls is smaller than the outer diameter of the pipe sections.
Further, the limiting component is arranged in the limiting groove 505 of the first partition plate or the second partition plate; the limiting assembly comprises a plurality of guide rods 506 horizontally fixed in limiting grooves, a fixing plate 507 is slidably arranged on each guide rod, a bearing plate 508 is horizontally fixed at the inner side end of each fixing plate, the bearing plate penetrates through the limiting grooves to be arranged in the storage channel, a first spring 509 is sleeved on each guide rod, and the first spring is arranged between the outer side end of each fixing plate and the limiting position in a pressing mode;
the upper surface of the bearing plate is obliquely arranged downwards from outside to inside;
the limiting assemblies on the first partition plate and the second partition plate are correspondingly arranged, and the pipe section can be placed on the bearing plate.
Further, the docking structure comprises two tube taking structures 601 respectively corresponding to the two storage structures, and a first docking assembly 614 and a second docking assembly 615 are respectively arranged on the outer sides of the two tube taking structures;
the pipe taking structure comprises a second supporting platform 602, two first hydraulic cylinders 603 are vertically arranged on the second supporting platform, the first hydraulic cylinders are connected with and push a grabbing structure 604 to move up and down, and the grabbing structure is used for locking and fixing corresponding pipe sections;
when the grabbing structure locks and fixes the pipe section, the first hydraulic cylinder drives the grabbing structure to drive the pipe section to move downwards, and the bearing plates on two sides of the storage channel move outwards in the moving process; when the pipe section passes through the pressure bearing plate, the pressure bearing plate resets under the action of the first spring and stops and limits the pipe section positioned above the pressure bearing plate;
the first butt joint assembly and the second butt joint assembly comprise a third supporting platform 605, a first lead screw 606 is rotatably arranged on the third supporting platform, and the first lead screw is parallel to the axial direction of the stored pipe sections; the first lead screw is connected with an output shaft of a second motor 607, a first fixed seat 608 is arranged on the first lead screw in a threaded fit manner, and the second motor can drive the first fixed seat to move by rotating; a first pneumatic clamping jaw 609 is rotatably arranged on one side wall of the first fixing seat close to the tube taking structure and is driven to rotate by a third motor 616; the inner wall of the clamping jaw of the first pneumatic clamping jaw is rotatably provided with a pressing wheel 610, the rotating direction of the pressing wheel is the same as the axial direction of the pipe section, when the first pneumatic clamping jaw grabs the corresponding end of the fixed pipe section, the pressing wheel is pressed on the outer wall of the pipe section, and at the moment, the pipe section can only move along the axial direction of the pipe section; after the first pneumatic clamping jaws of the first butt joint assembly and the second butt joint assembly move relatively, one pipe section is pressed and inserted into the other pipe section, the third motor rotates to drive the first pneumatic clamping jaws to rotate, and the first pneumatic clamping jaws drive the pipe sections clamped by the first pneumatic clamping jaws to rotate.
Further, the grabbing structure comprises a fourth supporting platform 611 fixed on the first hydraulic cylinder, two grabbing plates 612 with arc structures are movably arranged on the fourth supporting platform, the grabbing plates are pushed to move through an electric push rod 617, and balls 613 are arranged on the inner walls of the grabbing plates;
when the first hydraulic cylinder drives the grabbing structure to move upwards until the two grabbing plates are respectively positioned at two sides of the pipe section, the electric driving drives the two grabbing plates to move towards each other until the hoop is positioned on the outer wall of the pipe section, and then the pipe section can be locked and fixed.
Further, the welding structure includes a fifth supporting platform 702 fixed on the second hydraulic cylinder 701, and the fifth supporting platform is disposed below the two pipe sections that are inserted into each other;
a linear guide rail 703 is arranged on the fifth supporting platform, the linear guide rail is arranged in parallel with the axial direction of the pipe section, a welding gun fixing seat 704 is movably arranged on the linear guide rail, and a welding gun 705 is fixed on the welding gun fixing seat; the welding is used for welding two pipe sections which are mutually inserted.
An ocean pipeline butt welding method comprises the following steps:
(1) continuously conveying the flat pipe sections and the flared pipe sections into a storage structure through conveying structures of a first conveying mechanism and a second conveying mechanism respectively, wherein flared ends of the flared pipe sections are arranged towards the flat pipe sections;
(2) the pipelines in the storage structure are sequentially stacked above the limiting assembly;
(3) when the first hydraulic cylinder drives the grabbing structure to move upwards until the two grabbing plates are respectively positioned at two sides of the pipe section, the electric pushing device pushes the two grabbing plates to move towards each other until the hoop is positioned on the outer wall of the pipe section, and then the pipe section can be locked and fixed;
(4) when the grabbing structure locks and fixes the pipe section, the first hydraulic cylinder drives the grabbing structure to drive the pipe section to move downwards, and the bearing plates on two sides of the storage channel move outwards in the moving process; when the pipe section passes through the pressure bearing plate, the pressure bearing plate resets under the action of the first spring and stops and limits the pipe section positioned above the pressure bearing plate;
(5) the first butt joint assembly and the second butt joint assembly respectively move oppositely under the action of the second motor, and after the two first pneumatic clamping jaws clamp the two pipe sections, the first fixing seat of the first butt joint assembly continuously moves until the two pipe sections are mutually spliced and pressed;
(6) the position of a welding gun is adjusted through a second hydraulic cylinder and the linear guide rail, and the two third motors are started to enable the rotating speeds of the two third motors to be the same, so that the two pipe sections rotate, and in the rotating process, the joint can be welded through the welding gun;
(7) after the welding is finished, the grabbing structure is moved downwards until the pipe section is separated from the storage channel, and the grabbing structure is loosened to take down the welded pipe.
In this embodiment, the welding device further includes a main control box, the main control box is provided with a plurality of line sets for connecting with each execution element of the whole device, and the main control box is also provided with a signal bus output for connecting with a central control system, and the operation control of the whole device is realized by using a touch screen.
Claims (9)
1. An ocean pipeline butt welding device is characterized by comprising a first conveying mechanism and a second conveying mechanism which are used for conveying and storing two different pipe sections respectively and are arranged correspondingly to each other; the first conveying mechanism and the second conveying mechanism respectively comprise a conveying structure and a storage structure arranged at the outlet end of the conveying structure; and the butt welding device is used for butt-jointing and welding the two pipe sections moved to the storage structure, and comprises a butt-jointing structure and a welding structure, wherein the butt-jointing structure is correspondingly arranged with the storage structure, and the welding structure is used for welding and fixing the pipe sections.
2. The marine pipeline butt-welding device as claimed in claim 1, wherein the conveying structure comprises a first supporting platform, the first supporting platform is provided with a first supporting groove with an open top, a plurality of first rotating rollers are arranged in the first supporting groove in parallel, and the pipe section placed above is moved from the inlet end to the outlet end of the conveying structure through the rotation of the first rotating rollers; the first supporting platform is used for fixing two sides of the first rotating roller and is respectively horizontally provided with a first connecting plate, the outer side of the first connecting plate is vertically provided with a supporting side wall, the top of the supporting side wall is higher than the top of the first supporting platform, the bottom of the supporting side wall is lower than the bottom of the first supporting platform, and one side of the supporting side wall close to the outlet end extends outwards and exceeds the outlet end of the first supporting platform;
two sides of a supporting shaft of the first rotating roller respectively penetrate through the first supporting grooves to be connected with the two supporting side walls, parts of the supporting shaft, which are positioned above the two first connecting plates, are respectively sleeved with a supporting sleeve, and the outer diameter of each supporting sleeve is equal to that of the first rotating roller;
the same end of each first rotating roller penetrates through the corresponding supporting side wall to fix a first gear, all the first gears are connected through chains, and one first gear is driven to rotate through a first motor, so that the first rotating rollers and the supporting sleeve synchronously rotate.
3. A marine pipeline butt-welding apparatus as claimed in claim 2, wherein the storage structure comprises a first partition fixed to the outlet end of the first support platform and a second partition fixed between the two support side walls, a storage channel is formed between the first partition and the second partition, the storage channel is in clearance fit with the corresponding pipe sections, and the pipe sections are arranged in the storage channel in an up-and-down overlapping manner.
4. A marine pipeline butt-welding device as claimed in claim 3, wherein the length of the first partition is shorter than that of the second partition, and the bottom of the storage passage is lower than the bottom of the support side wall;
the first partition plate and the second partition plate are correspondingly provided with a plurality of groups of limiting assemblies respectively, the limiting assemblies are located below the bottom of the supporting side wall, and the distance between the limiting assemblies and the bottom of the supporting side wall is smaller than the outer diameter of the pipe section.
5. The marine pipeline butt welding device as claimed in claim 4, wherein the limiting assembly is arranged in a limiting groove of the first partition plate or the second partition plate; the limiting assembly comprises a plurality of guide rods horizontally fixed in a limiting groove, a fixing plate is slidably arranged on each guide rod, a bearing plate is horizontally fixed at the inner side end of each fixing plate, the bearing plate penetrates through the limiting groove to be arranged in the storage channel, a first spring is sleeved on each guide rod, and the first spring is pressed between the outer side end of each fixing plate and the limiting position;
the upper surface of the bearing plate is obliquely arranged downwards from outside to inside;
the limiting assemblies on the first partition plate and the second partition plate are correspondingly arranged, and the pipe section can be placed on the bearing plate.
6. The marine pipeline butt-welding device as claimed in claim 5, wherein the butt-joint structure comprises two pipe taking structures respectively corresponding to the two storage structures, and a first butt-joint assembly and a second butt-joint assembly are respectively arranged at the outer sides of the two pipe taking structures;
the pipe taking structure comprises a second supporting platform, two first hydraulic cylinders are vertically arranged on the second supporting platform, the first hydraulic cylinders are connected with each other and push the grabbing structure to move up and down, and the grabbing structure is used for locking and fixing a corresponding pipe section;
when the grabbing structure locks and fixes the pipe section, the first hydraulic cylinder drives the grabbing structure to drive the pipe section to move downwards, and the bearing plates on two sides of the storage channel move outwards in the moving process; when the pipe section passes through the pressure bearing plate, the pressure bearing plate resets under the action of the first spring and stops and limits the pipe section positioned above the pressure bearing plate;
the first butt joint assembly and the second butt joint assembly respectively comprise a third supporting platform, a first lead screw is rotatably arranged on the third supporting platform, and the first lead screw is parallel to the axial direction of the stored pipe section; the first screw rod is connected with an output shaft of the second motor, a first fixed seat is arranged on the first screw rod in a threaded fit manner, and the second motor can drive the first fixed seat to move by rotating; a first pneumatic clamping jaw is rotatably arranged on one side wall, close to the tube taking structure, of the first fixing seat, and the first pneumatic clamping jaw is driven to rotate by a third motor; the inner wall of the clamping jaw of the first pneumatic clamping jaw is rotatably provided with a pressing wheel, the rotating direction of the pressing wheel is the same as the axial direction of the pipe section, when the first pneumatic clamping jaw grabs the corresponding end of the fixed pipe section, the pressing wheel is pressed on the outer wall of the pipe section, and at the moment, the pipe section can only move along the axial direction of the pipe section; after the first pneumatic clamping jaws of the first butt joint assembly and the second butt joint assembly move relatively, one pipe section is pressed and inserted into the other pipe section, the third motor rotates to drive the first pneumatic clamping jaws to rotate, and the first pneumatic clamping jaws drive the pipe sections clamped by the first pneumatic clamping jaws to rotate.
7. The marine pipeline butt-welding device as claimed in claim 6, wherein the grabbing structure comprises a fourth supporting platform fixed on the first hydraulic cylinder, two grabbing plates with circular arc structures are movably arranged on the fourth supporting platform, the grabbing plates are pushed to move by an electric push rod, and balls are arranged on the inner walls of the grabbing plates;
when the first hydraulic cylinder drives the grabbing structure to move upwards until the two grabbing plates are respectively positioned at two sides of the pipe section, the electric driving drives the two grabbing plates to move towards each other until the hoop is positioned on the outer wall of the pipe section, and then the pipe section can be locked and fixed.
8. The marine pipeline butt-welding device according to claim 7, wherein the welding structure comprises a fifth supporting platform fixed on the second hydraulic cylinder, and the fifth supporting platform is arranged below the two pipe sections which are inserted into each other;
a linear guide rail is arranged on the fifth supporting platform and is parallel to the axis direction of the pipe section, a welding gun fixing seat is movably arranged on the linear guide rail, and a welding gun is fixed on the welding gun fixing seat; the welding is used for welding two pipe sections which are mutually inserted.
9. An ocean pipeline butt welding method is characterized by comprising the following steps:
(1) continuously conveying the flat pipe sections and the flared pipe sections into a storage structure through conveying structures of a first conveying mechanism and a second conveying mechanism respectively, wherein flared ends of the flared pipe sections are arranged towards the flat pipe sections;
(2) the pipelines in the storage structure are sequentially stacked above the limiting assembly;
(3) when the first hydraulic cylinder drives the grabbing structure to move upwards until the two grabbing plates are respectively positioned at two sides of the pipe section, the electric pushing device pushes the two grabbing plates to move towards each other until the hoop is positioned on the outer wall of the pipe section, and then the pipe section can be locked and fixed;
(4) when the grabbing structure locks and fixes the pipe section, the first hydraulic cylinder drives the grabbing structure to drive the pipe section to move downwards, and the bearing plates on two sides of the storage channel move outwards in the moving process; when the pipe section passes through the pressure bearing plate, the pressure bearing plate resets under the action of the first spring and stops and limits the pipe section positioned above the pressure bearing plate;
(5) the first butt joint assembly and the second butt joint assembly respectively move oppositely under the action of the second motor, and after the two first pneumatic clamping jaws clamp the two pipe sections, the first fixing seat of the first butt joint assembly continuously moves until the two pipe sections are mutually spliced and pressed;
(6) the position of a welding gun is adjusted through a second hydraulic cylinder and the linear guide rail, and the two third motors are started to enable the rotating speeds of the two third motors to be the same, so that the two pipe sections rotate, and in the rotating process, the joint can be welded through the welding gun;
(7) after the welding is finished, the grabbing structure is moved downwards until the pipe section is separated from the storage channel, and the grabbing structure is loosened to take down the welded pipe.
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| CN201911125256.4A CN110666414B (en) | 2019-11-18 | 2019-11-18 | Marine pipeline butt welding device and welding method thereof |
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| CN201911125256.4A CN110666414B (en) | 2019-11-18 | 2019-11-18 | Marine pipeline butt welding device and welding method thereof |
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| CN110666414B CN110666414B (en) | 2021-02-23 |
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| CN116586840A (en) * | 2023-06-02 | 2023-08-15 | 常州市长扬风机有限公司 | Welding device for variable frequency motor housing |
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| CN110666414B (en) | 2021-02-23 |
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