CN107199414A - Intelligent pipeline welding equipment - Google Patents

Intelligent pipeline welding equipment Download PDF

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Publication number
CN107199414A
CN107199414A CN201710621335.9A CN201710621335A CN107199414A CN 107199414 A CN107199414 A CN 107199414A CN 201710621335 A CN201710621335 A CN 201710621335A CN 107199414 A CN107199414 A CN 107199414A
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CN
China
Prior art keywords
fixedly connected
motor
welding
pipeline welding
welding equipment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710621335.9A
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Chinese (zh)
Inventor
王世根
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FOSHAN YILI MACHINERY MANUFACTURING Co Ltd
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FOSHAN YILI MACHINERY MANUFACTURING Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by FOSHAN YILI MACHINERY MANUFACTURING Co Ltd filed Critical FOSHAN YILI MACHINERY MANUFACTURING Co Ltd
Priority to CN201710621335.9A priority Critical patent/CN107199414A/en
Publication of CN107199414A publication Critical patent/CN107199414A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K31/00Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/02Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/053Auxiliary 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
    • B23K37/0533Auxiliary 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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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

The invention discloses intelligent pipeline welding equipment, including casing, the side of the cabinet wall is fixedly connected with the first motor, the first runner is fixedly connected with the output shaft of first motor, the surface of first runner is connected with the second runner by conveyer belt, and second runner axle center at be fixedly connected with threaded rod, the thread surface of the threaded rod is connected with sleeve pipe, the bottom of described sleeve pipe is fixedly connected with welding rod by connecting plate, the both sides of cabinet wall are fixedly connected with the second motor by motor cabinet, the first belt pulley is fixedly connected with the output shaft of second motor, the surface of first belt pulley is connected with the second belt pulley by belt transmission, the present invention relates to pipeline welding technical field.Intellectuality pipeline welding equipment of the invention, solves existing pipeline welding device intelligence lowly, the problem of welding efficiency is low, it is possible to achieve automatic rotary welding greatly improves operating efficiency.

Description

Intelligent pipeline welding equipment
Technical field
The invention belongs to pipeline welding technical field, more particularly to a kind of intelligent pipeline welding equipment.
Background technology
Oil and Gas Cooperation is the important content of the Belt and Road strategy.As energy-consuming state the biggest in the world, China is annual Will be from import mass energy resource particularly petroleum resources all over the world, at present, crude oil in China external dependence degree is close to 60%, day Right gas external dependence degree is also up to 30%, and oil gas safety problem is troubling.In addition, China also faces overseas oil and gas money The problems such as source obtains difficulty increase, crude oil price right of speech is weak, it is extremely unbecoming with the status of energy big country of China.Implement " one Band is all the way " strategy, strengthen the cooperation in the field of energy with country on the way, new approaches will be provided for the solution of these problems.Meanwhile, this also anticipates The energy external cooperation of Wei Zhe China will be tackled to active as transformation from passive, from man-to-man single-point cooperation to one-to-many whole Body collaboration transformation, so that the development for China's gas industries brings new opportunities.
In recent years, crude oil in China import volume rapid growth, external dependence degree also gradually increases.Crude oil in China is external within 2012 Interdependency is up to 56.5%, more than the 53.5% of the U.S..With the increase of crude oil import amount, northeast, northwest, southwest and sea four are big former Oil inlet passage will be gradually formed, and ducts will be further perfect.2010-2015, crude oil in China consumption figure is integrally in increasing Long trend, speedup is in fluctuating change.Issued according to middle throwing consultant's industrial research institute《2016-2021 Chinese Petroliferous pipeliners Journey construction industry market is looked forward to the prospect reports with investment strategy planning application》It has been shown that, Chinese crude oil consumption figure reaches 559.73 within 2015 Million tons, increase by 6.26% on a year-on-year basis, increasing degree has been gone up.
2015, low speed increased during CNPC's consumption continues, and external dependence degree head broken 60% reaches 60.6%;Product oil Net export amount is significantly incremented by for continuous 3 years.2015, oil Apparent con- sumption was estimated as 5.43 hundred million tons, than last year increase by 0.25 hundred million Ton, rejects newly-increased oil reserve and stock factor, and it is 4.4% to estimate actual oil consumption speedup, and 0.7 percentage is increased compared with last year Point.3.28 hundred million tons of net oil import, increases by 6.4%, speed increasing ratio last year is high 0.6 percentage point.
China produces 2.1331 hundred million tons of crude oil within 2015, and 3.28 hundred million tons of imported crude oil increases by 6.4% on a year-on-year basis;Product oil 2990 Ten thousand tons, 0.3% is declined than last year;5 ~ No. 7 15,400,000 tons of fuel oil, 13.0% is declined than last year;Liquefied petroleum gas and other hydro carbons 32,070,000 tons of gas, than last year rise 17.8%;2.04 hundred million tons of coal and lignite, 29.9% is declined than last year;Crude oil Apparent con- sumption 5.43 hundred million tons, increase by 4.83% on a year-on-year basis, external dependence degree is 60.6%.
According to relevant research, it is expected that Chinese oil demand amount in 2016 will rise to 5.66 hundred million tons, it is roughly equal to 11,320,000 barrels/day, Mutually studied with last year than being higher by 460,000 barrels.In addition, Chinese crude oil net importation amount will increase by 7.3% to 7,140,000 barrel/day.
In recent years, crude oil in China import volume rapid growth, external dependence degree also gradually increases.Crude oil in China is external within 2012 Interdependency is up to 56.5%, more than the 53.5% of the U.S..With the increase of crude oil import amount, northeast, northwest, southwest and sea four are big former Oil inlet passage will be gradually formed, and ducts will be further perfect.To " 13 " end, only China's long-distance oil & gas pipeline is total Mileage will be more than 160,000 kilometers.
Welding, is one of main technique link during oil-gas pipeline is built.Welding procedure it is whether advanced, welding quality Quality etc., is not only related to Construction Cost, and is directly connected to the safe operation of oil-gas pipeline, from domestic and international generation A large amount of oil-gas pipeline safety accidents from the point of view of, the inferior of welding quality is the one of the main reasons for causing oil-gas pipeline accident, because This pipeline welding quality problems must attract great attention.
To meet the ever-increasing energy demand of China, single conduit design throughput is continuously increased, construction steel pipe Strength grade, caliber, wall thickness and discharge pressure etc. also gradually increase, and higher requirement is proposed to site Welding Technology.China Start to build heavy caliber long distance pipeline at the beginning of the seventies in last century, Daqing oil field has been built in famous northeast " eight or three " pipeline mass campaign To Tieling, Tieling to Dalian, Tieling to Qinhuangdao oil pipeline, solve puzzlement Daqing crude oil outside defeated problem.The pipeline is set The mm of caliber φ 720 are counted, steel select 16MnR, Seam of SAW Spiral Steel Pipe, 6 ~ 11mm of wall thickness.Welding procedure design is:Manual arc Soldering method, welds operating procedure upwards;Wlding selects 400 DEG C, 1h of baking, φ 3.2mm bottoming, φ before J506, J507 welding rod, weldering 4mm fillings, capping;The source of welding current uses rotary DC arc welder;Groove is 60 ° of V-types, root one side welding with back formation.Northeast " eight or three " join in a battle built pipeline and have run 30 years, so far still under arms, it was demonstrated that process program then is correct, and applies Working medium amount is good.The beginning of the eighties in last century starts to promote by hand Welding downwards, while having developed cellulose type and low hydrogen The downward welding rod of type.Compared with traditional upward Welding, downward soldering set there are the outstanding advantages such as speed is fast, quality is good, saving wlding, Therefore it is widely used in pipeline girth welding.The beginning of the nineties in last century starts to promote self-protection flux-cored wire half certainly Dynamic weldering is combined with manual welding, effectively overcomes the shortcoming of other welding technique field work wind loading ratings difference, simultaneously Also there is the characteristics of welding efficiency is high, quality is good and stable, the ready-made major way for pipeline girth welding.Pipeline all-position is certainly The application of dynamic weldering has been explored for many years, there is now breakthrough, has been successfully used to Pipeline, its efficiency, matter Amount be even more other welding procedures can not than, this indicates that China's oil-gas pipeline welding technique has reached higher level.
China's pipe-line construction is currently under the stage of greatly developing, therefore the development of pipe line steel is also very fast.In previous generation Record for 50 ~ seventies, pipe line steel mainly uses A3 steel and 16Mn steel;The later stage seventies and the eighties are used from Japanese import TS52K steel(Equivalent to X52 grades steel);The nineties, X52, X60, X65 level hot-rolled sheet coil that pipe line steel is mainly used, mainly by treasured Steel and Wuhan Iron and Steel Plant production and supply.X52, X70 grade high ductility pipe line steel are successfully developed and developed during " eight or five ", and progressively obtain wide General application.West-East National Gas Transmission Project employs X70 grades of pipe line steels.The beginning of this century, by North China the first machinery plant of equipment manufacturing division department The second west to east gas pipeline project of development X grades of pipe line steels, diameter 1219mm × 22mm straight-line joint submerged arc welding tubes, by by CNPC day Ran Qi group companies and the expert appraisal of China Iron & Steel Association's tissue, have filled up domestic heavy caliber, Hi-grade steel vertical masonry joint submerged arc The blank of Welded tube production.
Because it is found that being located in an outlying district with the oil gas field of exploitation, geography, weather, geological conditions are severe, and society relies on bar Part is poor, and many difficulties are brought to construction, and the trouble that especially low temperature is brought is maximum.During Site Welding, managed using line-up clamp Mouth group pair.In order to improve efficiency, it is usually that foundation beam wood or mound are placed under to the good mouth of pipe, enters to previous docking port While row welding, start next docking preparation.This will produce larger additional stress.Simultaneously because steel pipe heat expansion is cold The influence of contracting, is easiest to go wrong because of additional stress when touching dead mouth.Site Welding position is that pipe pipe level is fixed or tilted Fix the welding positions such as docking, including downhand welding, vertical position welding, overhead welding, horizontal position welding.So being proposed to the operating technology of welder higher, more Tight requirement.Current pipeline industry requires that pipeline has higher discharge pressure and larger pipeline diameter and ensures that its is transported safely OK.To adapt to the high strengthening of pipe line steel, high toughening, the maximization of caliber and the wall thickening of tube wall, occur in that a variety of welding methods, Welding material and welding procedure.
The application of pipeline is quite varied, it is sometimes desirable to which pipeline is welded, but existing pipeline welding equipment is, it is necessary to people Work is caught, due to circular bad fixation, and easily welding failure, intelligent relatively low, not only loses time also to cause cost increase.
The content of the invention
(One)The technical problem of solution
In view of the shortcomings of the prior art, the invention provides intelligent pipeline welding equipment, the existing pipeline welding equipment of x is solved It is intelligent relatively low, the problem of welding effect is poor.
(Two)Technical scheme
To realize object above, the present invention is achieved by the following technical programs:Intelligent pipeline welding equipment, including case Body, the side of the cabinet wall, which is fixedly connected with the first motor, the output shaft of first motor, is fixedly connected with first Runner, the surface of first runner is connected with the company of fixation at the second runner, and the axle center of the second runner by conveyer belt Threaded rod is connected to, the thread surface of the threaded rod is connected with sleeve pipe, and the bottom of described sleeve pipe is fixedly connected with by connecting plate Welding rod.
It is preferred that, the both sides of the cabinet wall are fixedly connected with the second motor, second motor by motor cabinet Output shaft on be fixedly connected with the first belt pulley, the surface of first belt pulley is connected with the second belt by belt transmission Wheel, and it is fixedly connected with sleeve at the axle center of the second belt pulley.
It is preferred that, lower device of surveying is symmetric in the box house.
It is preferred that, the second belt pulley specification is more than the first belt pulley specification.
It is preferred that, the casing outer layer applies promising water-proof function material.
It is preferred that, electric expansion bar, the electric expansion bar have been fixedly connected with the top and bottom of the sleeve lining One end be fixedly connected with stripper plate.
It is preferred that, the both sides of the sleeve surface bottom are rotatably connected to deck, the top of the deck and casing Inwall is fixedly connected.
It is preferred that, the both sides of the casing offer the opening being adapted with sleeve.
(Three)Beneficial effect
The invention provides intelligent pipeline welding equipment.Possesses following beneficial effect:
(1), the intelligent pipeline welding equipment, the first motor is fixedly connected with by the side of cabinet wall, the first motor it is defeated The first runner is fixedly connected with shaft, the surface of the first runner passes through conveyer belt the second runner of drive connection, the axle of the second runner Threaded rod is fixedly connected with the heart, the thread surface connection sleeve pipe of threaded rod, the bottom of sleeve pipe is fixedly connected with welding rod by connecting plate, The both sides of cabinet wall are fixedly connected on the second motor, the output shaft of the second motor by motor cabinet and are fixedly connected with the first belt Wheel, the surface of the first belt pulley is connected by belt transmission is fixedly connected with sleeve at the second belt pulley, the axle center of the second belt pulley, Solve existing pipeline welding device intelligence low, the problem of welding efficiency is low, it is possible to achieve automatic rotary welding, greatly Improve operating efficiency.
(2), the intelligent pipeline welding equipment, by being fixedly connected with electric expansion at the top and bottom of sleeve lining Bar, one end of electric expansion bar is fixedly connected with stripper plate, and the both sides of casing open up the opening being adapted with sleeve so that can be with It is fixed when pipeline rotating welding, while pipeline of taking is very convenient.
Brief description of the drawings
Fig. 1 is the overall structural representation of the present invention.
Fig. 2 is the structural representation of sleeve of the present invention.
In figure:1- casings, the motors of 2- first, the runners of 3- first, 4- conveyer belts, the runners of 5- second, 6- threaded rods, 7- sets Pipe, 8- connecting plates, 9- welding rods, the motors of 10- second, 11- motor cabinets, the belt pulleys of 12- first, 13- belts, the belt pulleys of 14- second, 15- sleeves, 16- electric expansion bars, 17- stripper plates, 18- decks.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made Embodiment, belongs to the scope of protection of the invention.
Fig. 1-2 is referred to, the present invention provides a kind of technical scheme:Intelligent pipeline welding equipment, including casing 1, casing 1 The side of inwall is fixedly connected with the first motor 2, the output shaft of the first motor 2 and is fixedly connected with the first runner 3, the first runner 3 surface is connected with the second runner 5, and the axle center of the second runner 5 by conveyer belt 4 and is fixedly connected with threaded rod 6, spiral shell The thread surface of rasp bar 6 is connected with sleeve pipe 7, and the bottom of sleeve pipe 7 is fixedly connected with welding rod 9 by connecting plate 8, the inwall of casing 1 Both sides are fixedly connected with the second motor 10, the output shaft of the second motor 10 by motor cabinet 11 and are fixedly connected with the first belt Wheel 12, the surface of the first belt pulley 12 is connected with the second belt pulley 14, and the axle center of the second belt pulley 14 by belt 13 Place is fixedly connected with the top and bottom of sleeve 15, the inwall of sleeve 15 and has been fixedly connected with electric expansion bar 16, electric expansion bar 16 one end is fixedly connected with stripper plate 17, and the both sides of the surface bottom portion of sleeve 15 are rotatably connected to deck 18, the top of deck 18 Portion is fixedly connected with the inwall of casing 1, and the both sides of casing 1 offer the opening being adapted with sleeve 15.
In use, need the pipeline welded to enter respectively from the opening of the both sides of casing 1 inside sleeve 15, electric expansion bar 16 Elongation so that pipeline is fixed stripper plate 17, now, opens the first motor 2 so that the first runner 3 passes through the band of conveyer belt 4 Dynamic second runner 5 is rotated, so that threaded rod 6 drives sleeve pipe 7 to rotate so that welding rod is welded to pipeline, is opened simultaneously Second motor 10 so that the first belt pulley 12 drives the second belt pulley 14 to rotate by belt 13 so that sleeve 15 is rotated, so that So that rotating welding.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposited between operating In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to Nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including those Element, but also other key elements including being not expressly set out, or also include being this process, method, article or equipment Intrinsic key element.In the absence of more restrictions.By sentence " including one ... the key element limited, it is not excluded that Also there is other identical element in the process including the key element, method, article or equipment ".
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims (8)

1. intelligent pipeline welding equipment, including casing(1), it is characterised in that:The casing(1)The side of inwall is fixedly connected There is the first motor(2), first motor(2)Output shaft on be fixedly connected with the first runner(3), first runner(3) Surface pass through conveyer belt(4)It is connected with the second runner(5), and the second runner(5)Axle center at be fixedly connected with screw thread Bar(6), the threaded rod(6)Thread surface be connected with sleeve pipe(7), described sleeve pipe(7)Bottom pass through connecting plate(8)It is fixed It is connected with welding rod(9).
2. intelligent pipeline welding equipment according to claim 1, it is characterised in that:The casing(1)The both sides of inwall Pass through motor cabinet(11)It is fixedly connected with the second motor(10), second motor(10)Output shaft on be fixedly connected with One belt pulley(12), first belt pulley(12)Surface pass through belt(13)It is connected with the second belt pulley(14), and Second belt pulley(14)Axle center at be fixedly connected with sleeve(15).
3. intelligent pipeline welding equipment according to claim 1, it is characterised in that:The casing(1)It is lower in inside to survey Device is symmetric.
4. intelligent pipeline welding equipment according to claim 2, it is characterised in that:Second belt pulley(14)Specification Size is more than the first belt pulley(12)Specification.
5. intelligent pipeline welding equipment according to claim 1, it is characterised in that:The casing(1)Outer layer applies promising Water-proof function material.
6. intelligent pipeline welding equipment according to claim 2, it is characterised in that:The sleeve(15)The top of inwall Electric expansion bar has been fixedly connected with bottom(16), the electric expansion bar(16)One end be fixedly connected with stripper plate (17).
7. intelligent pipeline welding equipment according to claim 2, it is characterised in that:The sleeve(15)Surface bottom portion Both sides are rotatably connected to deck(18), the deck(18)Top and casing(1)Inwall be fixedly connected.
8. intelligent pipeline welding equipment according to claim 1, it is characterised in that:The casing(1)Both sides open It is provided with and sleeve(15)The opening being adapted.
CN201710621335.9A 2017-07-26 2017-07-26 Intelligent pipeline welding equipment Pending CN107199414A (en)

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Cited By (13)

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Publication number Priority date Publication date Assignee Title
CN107931938A (en) * 2017-11-14 2018-04-20 天津煜腾恒泰钢制品有限公司 A kind of welded steel fixed equipment of new rotatable commutation
CN108098213A (en) * 2018-02-02 2018-06-01 朱子涵 A kind of welded tube mill with elevation and subsidence regulating device
CN108127285A (en) * 2018-01-05 2018-06-08 惠安耐亚节能科技有限公司 A kind of dumper skip plate robot welding machine
CN108161172A (en) * 2017-12-28 2018-06-15 浙江益仓机电有限公司 A kind of automatic arc welding for being used to weld cylinder
CN108655614A (en) * 2018-05-16 2018-10-16 王欧然 A kind of assembly line automatic spot-welding device
CN109794726A (en) * 2019-01-18 2019-05-24 杨胜 A kind of stainless steel tube bonding machine
CN110039232A (en) * 2019-05-29 2019-07-23 广东技术师范大学 A kind of industrial welding robot
CN110369895A (en) * 2019-07-15 2019-10-25 长兴云腾新能源科技有限公司 A kind of net grade welding processing equipment of PFA knot for stainless steel semiconductor
CN110666383A (en) * 2019-10-28 2020-01-10 徐州金源臭氧设备有限公司高新区分公司 Natural gas line welding set for environmental protection engineering
CN110842404A (en) * 2019-10-24 2020-02-28 江苏振光电力设备制造有限公司 Automatic welding device for steel pipe joints
CN112658580A (en) * 2020-12-01 2021-04-16 广东珠江燃气集团股份有限公司 Welding device with double-end fixing structure for gas pipeline engineering
CN112975219A (en) * 2021-02-26 2021-06-18 重庆工程职业技术学院 Automatic change welding assembly mechanical equipment
CN115008090A (en) * 2022-04-22 2022-09-06 安徽圣方机械制造有限公司 Welding device for producing gas drainage pipe and machining process thereof

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CN105522251A (en) * 2016-01-07 2016-04-27 上海宝冶工程技术有限公司 Automatic butt welding device for steel tube
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Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107931938A (en) * 2017-11-14 2018-04-20 天津煜腾恒泰钢制品有限公司 A kind of welded steel fixed equipment of new rotatable commutation
CN108161172A (en) * 2017-12-28 2018-06-15 浙江益仓机电有限公司 A kind of automatic arc welding for being used to weld cylinder
CN108127285A (en) * 2018-01-05 2018-06-08 惠安耐亚节能科技有限公司 A kind of dumper skip plate robot welding machine
CN108098213A (en) * 2018-02-02 2018-06-01 朱子涵 A kind of welded tube mill with elevation and subsidence regulating device
CN108098213B (en) * 2018-02-02 2024-05-31 唐山玉环工贸有限公司 Pipe welding machine with lifting adjusting device
CN108655614A (en) * 2018-05-16 2018-10-16 王欧然 A kind of assembly line automatic spot-welding device
CN108655614B (en) * 2018-05-16 2021-02-05 南京晨光集团有限责任公司 Automatic spot welding device for assembly line
CN109794726B (en) * 2019-01-18 2021-12-03 中沃(泰州)激光科技有限公司 Stainless steel pipe welding machine
CN109794726A (en) * 2019-01-18 2019-05-24 杨胜 A kind of stainless steel tube bonding machine
CN110039232A (en) * 2019-05-29 2019-07-23 广东技术师范大学 A kind of industrial welding robot
CN110369895A (en) * 2019-07-15 2019-10-25 长兴云腾新能源科技有限公司 A kind of net grade welding processing equipment of PFA knot for stainless steel semiconductor
CN110842404A (en) * 2019-10-24 2020-02-28 江苏振光电力设备制造有限公司 Automatic welding device for steel pipe joints
CN110666383A (en) * 2019-10-28 2020-01-10 徐州金源臭氧设备有限公司高新区分公司 Natural gas line welding set for environmental protection engineering
CN112658580A (en) * 2020-12-01 2021-04-16 广东珠江燃气集团股份有限公司 Welding device with double-end fixing structure for gas pipeline engineering
CN112975219A (en) * 2021-02-26 2021-06-18 重庆工程职业技术学院 Automatic change welding assembly mechanical equipment
CN115008090A (en) * 2022-04-22 2022-09-06 安徽圣方机械制造有限公司 Welding device for producing gas drainage pipe and machining process thereof

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