CN114559134A - Welding device for densely-arranged circular tubes - Google Patents

Welding device for densely-arranged circular tubes Download PDF

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Publication number
CN114559134A
CN114559134A CN202210154346.1A CN202210154346A CN114559134A CN 114559134 A CN114559134 A CN 114559134A CN 202210154346 A CN202210154346 A CN 202210154346A CN 114559134 A CN114559134 A CN 114559134A
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CN
China
Prior art keywords
welding
welded
wire
wheel
wire feeding
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Pending
Application number
CN202210154346.1A
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Chinese (zh)
Inventor
石惟一
石硕
王立玉
蒋国颂
季小燕
周勇
石蓓
葛玲兰
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Nanjing East Star Mechanical And Electrical Technology Co ltd
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Nanjing East Star Mechanical And Electrical Technology Co ltd
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Priority to CN202210154346.1A priority Critical patent/CN114559134A/en
Publication of CN114559134A publication Critical patent/CN114559134A/en
Pending legal-status Critical Current

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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
    • B23K9/16—Arc welding or cutting making use of shielding gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/02—Carriages for supporting the welding or cutting element
    • B23K37/0211—Carriages for supporting the welding or cutting element travelling on a guide member, e.g. rail, track
    • B23K37/0217—Carriages for supporting the welding or cutting element travelling on a guide member, e.g. rail, track the guide member being fixed to the workpiece
    • 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
    • B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
    • B23K9/133—Means for feeding electrodes, e.g. drums, rolls, motors
    • 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
    • B23K9/24—Features related to electrodes
    • B23K9/28—Supporting devices for electrodes
    • 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
    • B23K9/325—Devices for supplying or evacuating shielding gas
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Power Engineering (AREA)
  • Optics & Photonics (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

The invention provides a welding device for densely-arranged circular pipes, which is applied to welded circular pipes densely arranged with common circular pipes, and comprises at least one circle of graphite carbon brushes, at least one circle of air nozzle ring group, at least one group of guide rails, a welding gun assembly, a crawling wheel group and a rotary driving piece, wherein the graphite carbon brushes, the at least one circle of air nozzle ring group and the at least one group of guide rails are sleeved on the welded circular pipes and detachably connected with the welded circular pipes, the graphite carbon brushes and the guide rails are respectively positioned at two sides of a welding seam on the welded circular pipes, the air nozzle ring group is positioned at the side part of the welding seam on the welded circular pipes, the crawling wheel group is movably connected with the guide rails, the upper part of the crawling wheel group is fixedly connected with the bottom end part of the welding gun assembly, the front end part of the welding gun assembly is connected with the graphite carbon brushes in a sliding manner, and the rotary driving piece is connected with the crawling wheel group to perform circular motion on the guide rails. The invention adopts the combination of the supporting wheel frame, the take-up pulley and the traction belt to drive the welding gun assembly to rotate around the welded round tube, thereby solving the problem that the driving motor for automatically welding the round tube has large volume and can not pass through the narrow gap between the round tubes.

Description

Welding device for densely-arranged circular tubes
Technical Field
The invention relates to the technical field of welding, in particular to a welding device for densely-arranged circular tubes.
Background
A plurality of circular steel pipes arranged in an overhead mode can be seen frequently on a construction site, the diameters and the wall thicknesses of the steel pipes are different, and the circular pipes are very long and cannot rotate. Because the gap between adjacent steel pipes is narrow, most of the gaps are about 50mm, however, at present, a circular welding gun, a circular air nozzle, a motor and the like are commonly used by a robot or an automatic welding machine, and the sizes of the parts are too large to pass through the gap of about 50mm between two adjacent circular pipes. Therefore, only manual welding is currently available. In addition, because the welding gun is connected with a welding cable, an air pipe and the like, when the welding gun performs welding around a round pipe, each welding seam needs to be welded for 3 or 4 or more times, and the problem that the welding cable and the air pipe are wound on the welded steel pipe can be caused.
Disclosure of Invention
In view of the above problems, the present invention provides a welding apparatus for densely arranged circular pipes, which can automatically weld the densely arranged steel pipes.
In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides a welding set of cylinder is arranged to intensive, be applied to with ordinary pipe intensive range be welded on the pipe, welding set locates on being welded the pipe and with being welded at least round graphite carbon brush, at least round air cock ring group and at least a set of guide rail that the pipe can dismantle the connection by the pipe including the cover to and welder subassembly, crawl wheelset and rotary driving piece, graphite carbon brush and guide rail are located respectively and are welded the pipe on the welding seam both sides, air cock ring group is located and is welded the pipe on the welding seam lateral part, crawl wheelset and guide rail swing joint, and its upper portion and welder subassembly bottom fixed connection, welder subassembly front end portion slides with the graphite carbon brush and links to each other, rotary driving piece is connected with crawl wheelset for the drive crawl wheelset is circular motion on the guide rail.
Preferably, the number of the graphite carbon brush and the air nozzle ring group is multiple, and adjacent circles of the graphite carbon brush and the air nozzle ring group are arranged in a staggered mode.
As preferred scheme, the welder subassembly includes trolley bar, barral of a gun, welding wire and send a subassembly, the trolley bar is along being welded the pipe axial setting, and its one end portion slides with the graphite carbon brush and links to each other, just the cross section of trolley bar is greater than the cross section of graphite carbon brush, another tip of trolley bar has puts the thing chamber, it is provided with and send a subassembly to put the thing intracavity, the barral of a gun is located on the trolley bar, and its tip downwarping and directional welding seam, the welding wire is located inside the barral of a gun and is sent a silk through sending a subassembly.
Preferably, the bent section of the gun rod is provided with a wire leaking hole for leaking the welding wire, and a hole cover is arranged at the hole opening of the wire leaking hole.
Preferably, the wire feeding assembly comprises two wire feeding wheels which are arranged in the storage cavity in a relatively rotatable manner, a tension spring is connected between the two wire feeding wheels in a pulling manner, the welding wire penetrates through a groove between the two wire feeding wheels and is abutted against the upper groove wall and the lower groove wall of the two wire feeding wheels, and one of the two wire feeding wheels is provided with a wire feeding driving part for driving the wire feeding wheels to rotate.
Preferably, the wire feeding driving part comprises a linear motor and a connecting rod, and the output end of the linear motor is hinged with a wire feeding wheel through the connecting rod.
Preferably, the rotary driving part comprises a supporting wheel frame, a take-up wheel and a traction belt, the take-up wheel is rotatably arranged on the supporting wheel frame, one end of the traction belt is connected with the crawling wheel group, and the other end of the traction belt is connected with the take-up wheel after being wound around a welded round pipe for a plurality of circles or is connected with the take-up wheel through the edge of another round pipe.
As preferred scheme, the rotary driving piece includes support wheel carrier, receipts band pulley and traction belt, on the rotatable support wheel carrier of locating of receipts band pulley, both quantity is N, and one-to-one, and nth the traction belt tip that receives the band pulley to link to each other links to each other with the wheelset of crawling after winding by welding pipe N circle.
Preferably, the rotary driving member includes a stator winding and a rotor winding, which are oppositely disposed, the stator winding is fixedly disposed on the welded round tube along the circumferential direction, and the rotor winding is fixedly disposed at the bottom end of the welding gun assembly and is matched with the stator winding.
Preferably, the crawling wheel set comprises an arc-shaped wheel frame, two idler wheels and a stud, the two idler wheels are rotatably connected to two end portions of the arc-shaped wheel frame, the two idler wheels are arranged on the guide rail and are in rolling connection with the guide rail, and the middle of the arc-shaped wheel frame is fixedly connected with the bottom end portion of the welding gun assembly through the stud.
As the preferred scheme, air cock ring group is including cyclic annular board and a plurality of air cocks of evenly around locating by welding pipe circumference, cyclic annular board sets firmly on being welded the pipe, air cock tip sets firmly on cyclic annular board to link to each other with the electromagnetism pneumatic valve of locating cyclic annular inboard inside, the air cock gas outlet is close to welding seam one side.
Compared with the prior art, the invention has the beneficial effects that:
(1) the air cock package of general welder is in the outside of circular rifle bar, and axis between them coincides mutually, and this application adopts air cock ring group to replace, can obviously reduce welder's volume, and air cock ring group does not rotate moreover, when carrying out the multiple welding, has avoided the problem that the trachea wound the pipe. The gas nozzle close to the welding arc combustion part can supply gas by controlling the electromagnetic gas valve, so that protective gas is saved.
(2) The graphite carbon brush is arranged on the welded round tube, so that the problem that a welding cable winds around the round tube is solved through the sliding fit of the current collecting rod and the graphite carbon brush during multi-pass welding.
(3) The structure of the linear motor and the connecting rod replaces a common printing motor or a permanent magnet direct current motor, and the size of the welding device is obviously reduced.
(4) The combination of the supporting wheel frame, the take-up pulley and the traction belt is adopted to drive the welding gun assembly to rotate around the welded round pipe, so that the problem that the driving motor for automatically welding the round pipe is large in size and cannot pass through narrow gaps between the round pipes is solved.
Drawings
The disclosure of the present invention is illustrated with reference to the accompanying drawings. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the invention. In the drawings, like reference numerals are used to refer to like parts. Wherein:
FIG. 1 is a diagram of an exemplary embodiment of a welding apparatus for densely packed circular tubes in accordance with the present invention;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a schematic view of a welding apparatus for densely packed circular tubes according to an embodiment of the present invention;
FIG. 4 is a front view of a welding apparatus for densely packed circular tubes in accordance with an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a creeper wheel assembly in accordance with an embodiment of the present invention;
FIG. 6 is a schematic view of a welding apparatus for densely packed circular tubes according to another embodiment of the present invention;
FIG. 7 is an enlarged view of a portion of FIG. 6 at A;
FIG. 8 is a schematic view showing a structure of a welding apparatus for densely packed circular tubes according to still another embodiment of the present invention.
Reference numbers in the figures: 100 welded round tubes, 200 common round tubes, 300 welding devices, 1 graphite carbon brush, 2 air nozzle ring groups, 201 annular plates, 3 guide rails, 4 crawling wheel groups, 401 arc wheel frames, 402 rollers, 403 studs, 5 collector bars, 6 gun rods, 7 welding wires, 8 wire feeding wheels, 9 tension springs, 10 supporting wheel frames, 11 take-up wheels, 111 first take-up wheels, 112 second take-up wheels, 113 third take-up wheels, 12 traction belts, 13 linear motors, 14 connecting rods, 15 welding seams, 16 storage cavities, 17 stator windings and 18 rotor windings.
Detailed Description
It is easily understood that according to the technical solution of the present invention, a person skilled in the art can propose various alternative structures and implementation ways without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical aspects of the present invention, and should not be construed as all of the present invention or as limitations or limitations on the technical aspects of the present invention.
Example 1
An embodiment according to the invention is shown in connection with fig. 1 to 5. A welding device 300 for densely-arranged circular tubes is applied to a welded circular tube 100 densely arranged with a common circular tube 200, and the gap between the welded circular tube 100 and the adjacent common circular tube 200 is about 50 mm. The welding device 300 comprises at least one circle of graphite carbon brush 1, at least one circle of air nozzle ring group 2 and at least one group of guide rail 3 which are sleeved on the welded round tube 100 and detachably connected with the welded round tube 100, a welding gun assembly, a crawling wheel group 4 and a rotary driving piece, wherein the graphite carbon brush 1 and the guide rail 3 are respectively positioned on two sides of a welding seam 15 on the welded round tube 100, and the air nozzle ring group 2 is positioned on the side part of the welding seam 15 on the welded round tube 100. The graphite carbon brush 1 is formed by combining two semicircular carbon brushes or multi-segment carbon brushes into a circular shape through screws, and the circular graphite carbon brush 1 is fixedly arranged on the welded circular tube 100, so that the graphite carbon brush 1 is convenient to detach and mount.
The creeping wheel group 4 is connected with the guide rail 3 in a rolling manner, the upper part of the creeping wheel group is fixedly connected with the bottom end part of the welding gun assembly, the front end part of the welding gun assembly is connected with the graphite carbon brush 1 in a sliding manner, and the rotary driving piece is connected with the creeping wheel group 4 and is used for driving the creeping wheel group 4 to do circular motion on the guide rail 3. The graphite carbon brush 1 is connected with one output end of the electric welding machine, and the welded round tube 100 is connected with the other output end of the electric welding machine.
Preferably, the number of the graphite carbon brush 1 and the air faucet ring group 2 is multiple, and adjacent circles are arranged in a staggered mode.
In this embodiment, the number of the creeping wheel sets 4 and the number of the guide rails 3 are 2, that is, one creeping wheel set 4 is provided on each guide rail 3, so as to increase the stability of the welding gun assembly when moving around the welded round pipe 100.
Referring to fig. 2, the rotary driving member includes a supporting wheel frame 10, a winding wheel 11 and a traction belt 12, the winding wheel 11 is rotatably disposed on the supporting wheel frame 10, one end of the traction belt 12 is connected to the crawling wheel group 4 after winding around the welded round tube 100 for several circles, and the other end of the traction belt 12 is connected to the winding wheel 11 through the edge of a common round tube 200.
In this embodiment, the number of the traction belts 12 is two, the two traction belts 12 are respectively connected to the two creeping wheel sets 4, if the welding seam 15 needs to be welded for 3 times, the two traction belts 12 are simultaneously wound on the welded round pipe 100 for 3 turns, and so on. Then, the two pieces of the traction belts 12 are overlapped together and wound on the take-up pulley 11 after hanging down through the edges of the adjacent common circular tubes 200. When the take-up pulley 11 rotates, the traction belt 12 drives the welding gun assembly to rotate around the welded round pipe 100, so that the volume of the rotary driving piece is effectively reduced, and the rotary driving piece can pass through narrow gaps between the round pipes.
The traction belt 12 is a steel wire rope, a chain, a tank chain or a tank chain with a roller pin. Preferably, before the pulley 11 rotates, a layer of lubricating oil is brushed on the welded round tube 100, or a tank chain with a needle roller is adopted, so as to reduce friction resistance and prevent the traction belt 12 from being locked.
Referring to fig. 3, the welding gun assembly includes a current collecting rod 5, a gun rod 6, a welding wire 7 and a wire feeding assembly, the current collecting rod 5 is axially arranged along a welded circular tube, one end of the current collecting rod 5 is slidably connected with the graphite carbon brush 1, the other end of the current collecting rod 5 is provided with a storage cavity 16, the wire feeding assembly is arranged in the storage cavity 16, the gun rod 6 is arranged on the current collecting rod 5, the end of the gun rod is bent downwards to contact with a welding seam 15, and the welding wire 7 is arranged inside the gun rod 6 and is fed through the wire feeding assembly.
In the embodiment of the invention, the number of the graphite carbon brush 1 and the air faucet ring group 2 is multiple, and adjacent circles are arranged in a staggered mode.
Preferably, the graphite carbon brush 1 is radially provided with two or more rows along the welded circular tube 100, and the cross section of the current collecting rod 5 is larger than that of the graphite carbon brush 1, so that the current collecting rod 5 is at least contacted with the two graphite carbon brushes 1 at the same time, and the current collecting rod 5 is ensured to be well contacted with the graphite carbon brushes 1.
Preferably, in order to prevent the welding wire 7 from being stuck on the bent section of the gun rod 6, a wire leaking hole is formed in the bent section of the gun rod 6, the depth of the wire leaking hole is required to expose the welding wire 7, and a hole cover is arranged at the opening of the wire leaking hole to prevent dust from entering and blocking the wire leaking hole. When the welding wire 7 cannot pass through, the welding wire 7 can be drawn into the wire leaking hole by using a hook-shaped tool.
Referring to fig. 4, the air nozzle ring set 2 includes an annular plate 201 and a plurality of air nozzles uniformly wound around the circumference of the welded round tube 100, the annular plate 201 is fixed on the welded round tube, the end of the air nozzle is fixed on the annular plate 201 and connected to an electromagnetic air valve disposed inside the annular plate 201, and the air outlet of the air nozzle is close to one side of the weld joint. During welding, one or more air nozzles close to the welding arc combustion part can supply air by controlling the electromagnetic air valve, so that protective gas is saved, and a better protective effect is achieved.
Optionally, the number of the air nozzle ring groups 2 is 2, the air nozzle ring groups are respectively located at two sides of the weld seam 15, and the air outlets 204 of the two air nozzle ring groups 2 are arranged in a staggered manner, so that the protection effect is enhanced.
Referring to fig. 5, the crawling wheel set 4 includes an arc wheel frame 401, rollers 402 and studs 403, the arc wheel frame 401 is arc-shaped, two ends of the arc wheel frame 401 are rotatably connected with the two rollers 402, the two rollers 402 are disposed on the guide rail 3 and are in rolling connection therewith, and the middle of the arc wheel frame 401 is fixedly connected with the bottom end of the welding gun assembly through the studs 403. In this embodiment, the guide rail 3 is made of a flexible material, can be wound around circular pipes of different diameters, and can be tensioned, such as a semi-rigid rubber strip with tensioning means, a plastic strip, and the like.
Example 2
Referring to fig. 6, the embodiment of the present invention is different from embodiment 1 in that: the rotary driving part comprises a supporting wheel frame 10, a take-up pulley 11 and a traction belt 12, the take-up pulley 11 is rotatably arranged on the supporting wheel frame 10, the number of the take-up pulley and the traction belt is N, the take-up pulley and the traction belt are in one-to-one correspondence, and the end part of the traction belt 12 connected with the Nth take-up pulley 11 is connected with the crawling wheel group 4 after winding around a welded round pipe for 100N circles.
In this embodiment, it is assumed that the weld seam 15 needs to be welded for 3 times, the number of the supporting wheel frames 10 and the number of the take-up wheels 11 are 3, the number of the traction belts 12 is 6, the 3 take-up wheels 11 are respectively a first take-up wheel 111, a second take-up wheel 112 and a third take-up wheel 113, the first take-up wheel 111 is respectively connected with the two crawling wheel sets 4 through the two traction belts 12, meanwhile, 1 turn is wound on the welded round tube 100, the second take-up wheel 112 is respectively connected with the two crawling wheel sets 4 through the two traction belts 12, simultaneously, 2 turns are wound on the welded round tube 100, the third take-up wheel 113 is respectively connected with the two crawling wheel sets 4 through the two traction belts 12, and simultaneously, 3 turns are wound on the welded round tube 100. Each take-up pulley 11 is connected with a driving motor in a transmission manner, and an automatic control circuit is arranged on the driving motor and belongs to the prior art. During welding, the three take-up wheels 11 are driven to rotate simultaneously to drive the welding gun assembly to rotate around the welded round tube 100 to perform first welding, after the first welding is completed, the first take-up wheel 111 is controlled to stop, the second take-up wheel 112 and the third take-up wheel 113 are continuously controlled to rotate, the welding gun assembly is driven to rotate around the welded round tube 100 to perform second welding, after the second welding is completed, the first take-up wheel 111 and the second take-up wheel 112 are controlled to stop, the third take-up wheel 113 is continuously controlled to rotate, and third welding is completed. The three take-up pulleys 11 are sequentially controlled to be powered off, so that the welding gun assembly rotates in a relay mode, and the problem that the traction belt 12 is locked due to multiple winding is solved.
Referring to fig. 7, the wire feeding assembly includes two wire feeding wheels 8 relatively rotatably disposed in the storage cavity 16, and a tension spring 9 is connected between the two wire feeding wheels 8 to maintain the pressure of the wire feeding wheels 8 on the welding wire 7 and prevent the wire feeding wheels 8 and the welding wire 7 from slipping. The welding wire 7 passes through the gap between the two wire feeding wheels 8 and is abutted against the upper wheel wall and the lower wheel wall of the two wire feeding wheels 8, and one wire feeding wheel 8 is provided with a wire feeding driving piece for driving the wire feeding wheel 8 to rotate. In this embodiment, the wire feeding driving member is a linear motor 13 and a connecting rod 14, and an output end of the linear motor 13 is hinged to a wire feeding wheel 8 through the connecting rod 14. When the welding wire is fed, the linear motor 13 reciprocates back and forth along a straight line to drive the wire feeding wheel 8 to rotate, so that the welding wire 7 is conveyed forwards, and the volume of the driving piece is greatly reduced on the premise of keeping larger driving force.
Optionally, four wire feeding wheels 8 are rotatably arranged in the storage cavity 16, and a tension spring 9 is connected between the corresponding wire feeding wheels 8.
Example 3
Referring to fig. 8, the embodiment of the present invention is different from embodiment 1 in that: referring to the printing motor, the rotary driving member includes a stator winding 17 and a rotor winding 18 which are oppositely arranged, the stator winding 17 is fixedly arranged on the welded round tube 100 along the circumferential direction, and the rotor winding 18 is fixedly arranged at the bottom end of the welding gun assembly and matched with the stator winding 17. The stator winding 17 and the rotor winding 18 are preferably shaped to be wide and flat to facilitate passage of a narrow gap between the circular tubes. When the welding gun assembly works, the rotor winding 18 is electrified, and the rotor winding 18 rotates by utilizing the electromagnetic induction principle, so that the welding gun assembly is driven to rotate around the welded round pipe 100, and the welding seam welding of the welded round pipe 100 is realized.
The technical scope of the present invention is not limited to the above description, and those skilled in the art can make various changes and modifications to the above-described embodiments without departing from the technical spirit of the present invention, and such changes and modifications should fall within the protective scope of the present invention.

Claims (11)

1. The utility model provides a welding set of cylinder is arranged to intensive, be applied to with ordinary pipe intensive range by on the pipe of welding, a serial communication port, welding set locates on the pipe of being welded and with the pipe of being welded can dismantle at least round graphite carbon brush, at least round air cock ring group and at least a set of guide rail of being connected to and welder subassembly, crawl wheelset and rotary driving piece, graphite carbon brush and guide rail are located respectively and are welded the pipe on the welding seam both sides, air cock ring group is located and is welded the pipe on the welding seam lateral part, crawl wheelset and guide rail swing joint, and its upper portion and welder subassembly bottom fixed connection, welder subassembly front end portion slides with the graphite carbon brush and links to each other, rotary driving piece is connected with crawl wheelset for the drive crawl wheelset is circular motion on the guide rail.
2. The apparatus for welding a densely arranged circular tube according to claim 1, wherein the graphite carbon brush and the air nozzle ring are arranged in a plurality of turns, and adjacent turns thereof are arranged in a staggered manner.
3. The apparatus of claim 1, wherein the welding gun assembly comprises a collector bar, a gun rod, a welding wire and a wire feeding assembly, the collector bar is axially arranged along the welded round tube, one end of the collector bar is slidably connected with the graphite carbon brush, the cross section of the collector bar is larger than that of the graphite carbon brush, the other end of the collector bar is provided with a storage cavity, the wire feeding assembly is arranged in the storage cavity, the gun rod is arranged on the collector bar, the end of the gun rod is bent downwards and points to the welding line, and the welding wire is arranged in the gun rod and is fed through the wire feeding assembly.
4. The apparatus for welding a pipe having a dense array of circular tubes as set forth in claim 3, wherein said curved portion of said gun shaft is provided with a wire leaking hole for leaking the welding wire, and a hole cover is installed at an opening of said wire leaking hole.
5. The apparatus for welding the tubes of the dense array of tubes as claimed in claim 3, wherein the wire feeding assembly comprises two wire feeding rollers rotatably disposed in the storage chamber, a tension spring is connected between the two wire feeding rollers, the welding wire passes through the groove between the two wire feeding rollers and abuts against the upper and lower walls of the two wire feeding rollers, and a wire feeding driving member is disposed on one of the two wire feeding rollers for driving the wire feeding roller to rotate.
6. The apparatus for welding closely-spaced circular tubes as set forth in claim 5, wherein said wire-feeding drive member comprises a linear motor and a connecting rod, and wherein an output end of said linear motor is connected to a wire-feeding wheel through the connecting rod.
7. The apparatus for welding the densely arranged circular tubes according to claim 1, wherein the rotary driving member comprises a supporting wheel frame, a winding wheel and a traction belt, the winding wheel is rotatably disposed on the supporting wheel frame, one end of the traction belt is connected to the crawling wheel set, and the other end of the traction belt is connected to the winding wheel after being wound around the welded circular tube for a plurality of turns, or is connected to the winding wheel through the edge of another circular tube.
8. The apparatus for welding the densely arranged circular tubes according to claim 1, wherein the welding seam is welded for N times, and the rotary driving member includes a supporting wheel frame, a take-up pulley and a traction belt, the take-up pulley is rotatably disposed on the supporting wheel frame, the number of the take-up pulley is N, the take-up pulley corresponds to the number of the take-up pulley, and the end of the traction belt connected to the nth take-up pulley is connected to the crawler wheel set after being wound around the welded circular tube for N times.
9. The apparatus of claim 1, wherein the rotary drive member comprises a stator winding and a rotor winding, the stator winding and the rotor winding are oppositely disposed, the stator winding is circumferentially fixed to the pipe to be welded, and the rotor winding is fixed to the bottom end of the welding gun assembly and is matched with the stator winding.
10. The apparatus for welding the densely arranged circular tubes according to claim 1, wherein the crawling wheel set comprises an arc-shaped wheel frame, two rollers and a stud, the two rollers are rotatably connected to two ends of the arc-shaped wheel frame, the two rollers are arranged on the guide rail and are in rolling connection with the guide rail, and the middle of the arc-shaped wheel frame is fixedly connected to the bottom end of the welding gun assembly through the stud.
11. The apparatus for welding the densely arranged circular tubes as claimed in claim 1, wherein the air nozzle ring set comprises an annular plate and a plurality of air nozzles uniformly arranged around the circumference of the welded circular tube, the annular plate is fixed on the welded circular tube, the end of each air nozzle is fixed on the annular plate and connected to the electromagnetic air valve arranged inside the annular plate, and the air outlet of each air nozzle is close to one side of the weld joint.
CN202210154346.1A 2022-02-21 2022-02-21 Welding device for densely-arranged circular tubes Pending CN114559134A (en)

Priority Applications (1)

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CN202210154346.1A CN114559134A (en) 2022-02-21 2022-02-21 Welding device for densely-arranged circular tubes

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116174847A (en) * 2022-12-26 2023-05-30 江苏杰润管业科技有限公司 Low-loss welding process and welding device for lining stainless steel composite pipe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116174847A (en) * 2022-12-26 2023-05-30 江苏杰润管业科技有限公司 Low-loss welding process and welding device for lining stainless steel composite pipe
CN116174847B (en) * 2022-12-26 2023-12-15 江苏杰润管业科技有限公司 Low-loss welding process and welding device for lining stainless steel composite pipe

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