CN102513671B - Super long automatic welding equipment and method for multiple layers of composite metal filter screens - Google Patents
Super long automatic welding equipment and method for multiple layers of composite metal filter screens Download PDFInfo
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- CN102513671B CN102513671B CN 201110372622 CN201110372622A CN102513671B CN 102513671 B CN102513671 B CN 102513671B CN 201110372622 CN201110372622 CN 201110372622 CN 201110372622 A CN201110372622 A CN 201110372622A CN 102513671 B CN102513671 B CN 102513671B
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Abstract
The invention relates to super long automatic welding equipment and a method for multiple layers of composite metal filter screens. In the technical scheme, the top of a lathe bed is provided with a walking trolley assembly which moves through a guide rail; a mandrel, an automatic barrel arm, a floating support, a support cylinder, a holding connecting rod, a support connecting rod and a lower support body are arranged inside the lathe bed; multiple layers of metal filter screens which are required to be coiled and welded are paved on the lower support body; a certain pressure is kept between the multiple layers of metal filter screens and the mandrel through the support cylinder; the automatic barrel arm is used for driving a chain to tightly coiling the multiple layers of metal filter screens on the mandrel; and a direct-current controllable welding electrode descends to weld the multiple layers of metal filter screens. The equipment and the method have the beneficial effects that: automatic coiling and molding can be realized quickly by performing one-time automatic welding; and a molded barrel-shaped filter screen has the advantages of firmness, certain strength, certain shape size specifications, high welding seam quality, regularity, attractiveness, high intensity, processing of a super long piece according to a use requirement, and the like.
Description
Technical field:
The present invention relates to a kind of machinery processing apparatus, particularly a kind of multilayer composite metal filter screen overlength automatic welding device and method.
Background technology:
In oil field development, it is a subject matter of the loose rock oil reservoir exploitation of puzzlement that oil gas shakes out: it not only easily causes the underproduction of oil well, stop production, the wearing and tearing of aggravation ground and underground equipment, and also can cause the damage of sleeve pipe and scrapping of oil well when serious, therefore to guarantee oilfield stable production, high yield, must take some effective measures to solve the sand control problem of oil well, adopting large latus rectum precise micropore sand screen is that at present both at home and abroad oil field is the outer up-to-date development of cutting seam sieve tube a kind of sand preventing tool of obtaining extensively promoting the use of, it is large that it has filter area, filtering accuracy is high, flow resistance is little, permeability is high, anti-blocking ability is strong, intensity is high, the advantages such as the life-span is long, can effectively protect oil-gas Layer, greatly reduce in Completion Operations the injury to bottom, and effectively control the oil gas sand production in oil, prevent cave-in, guarantee the long-term production of Oil/gas Well, be convenient to oil well operation and latter period of oilfield development and carry out sidetracking, and greatly reduced Completion cost, be widely used in the straight well of petroleum industry, inclined shaft, Multilateral Wells, the sand control of the oil wells such as horizontal well.
At present, domestic and international accurate composite sand filtering pipe commonly used, the making of its sand filtering barrel unified preparation method of neither one standard that varies, the quality that causes sand screen is also very different.And domestic production method to roll the roller pressure welding in the majority with manual, and welding when can not realize the multiple layer metal net.Quality for multiple layer metal net commissure will be difficult to guarantee like this.Because the backwardness that rolls mode causes reel soft, combination is not tight between layers simultaneously, and finally causes the decline of service property (quality).
At present, have no the bibliographical information of multilayer composite metal filter screen overlength automatic welding device and method both at home and abroad.
Summary of the invention:
Purpose of the present invention is exactly in view of the foregoing defects the prior art has, and a kind of multilayer composite metal filter screen overlength automatic welding device and method are provided.
A kind of multilayer composite metal filter screen overlength automatic welding device, mainly by power supply assembly, lathe bed, walking dolly assembly, mandrel, automatic reel arm, hold connecting rod, air-channel system, guide rail, transmission system, the controlled welding electrode of direct current, mandrel conducting block and lower support tightly and form, described lathe bed top is provided with the walking dolly assembly, and the walking dolly assembly moves by guide rail; Described lathe bed top is provided with the walking dolly assembly, and the walking dolly assembly moves by guide rail, and the controlled welding electrode of direct current and auxiliary compressor arm are arranged on walking dolly assembly bottom; One end of mandrel is fixed on lathe bed one side, and the mandrel conducting block connects and is arranged in the mandrel upper slot, and lower support is fastened on lathe bed base by float support, support cylinder, between support cylinder, by support link, connects transferring power; The required multiple layer metal filter screen that rolls and weld is laid on lower support, by supporting cylinder, multiple layer metal filter screen and mandrel are kept to certain pressure, described automatic reel arm drives the roll arm chain multiple layer metal filter screen is rolled closely on mandrel, the controlled welding electrode of direct current descends, and the multiple layer metal filter screen is welded.
Above-mentioned walking dolly assembly comprises commutator transformer, welding machine controller, water cooling system, the alternating current that commutator transformer carrys out the power supply assembly is converted to low pressure and through the Group of Silicon Controlled Rectifier rectification, thereby welding machine controller is controlled the electric current of the size control electrode of silicon controlled Trigger Angle, and cooling system provides circulating cooling liquid for transformer, controllable silicon and electrode.
Above-mentioned mandrel is provided with the mandrel conducting block, for making, between two electrodes, conducts electricity.
Above-mentioned air-channel system comprises gas source triplet, electromagnetic gas valve, one-way throttle valve and muffler, is mainly for pneumatic part provides power, and described gas source triplet is comprised of water-separating gas filter, pressure-reducing valve and oil sprayer.
A kind of multilayer composite metal filter screen overlength automatic soldering method, by following steps, realized:
(a) the required multiple layer metal filter screen that rolls and weld is laid on lower support, starting lower support rises, the support cylinder top rises to float to support and makes multiple layer metal filter screen and mandrel keep certain pressure, starts automatic reel arm drive roll arm chain the multiple layer metal filter screen is rolled closely on mandrel;
(b) start the controlled welding electrode of direct current and descend, welding parameter is set, heat pressure, every frame weld interval, precompressed and holding time, welding apart from and step pitch etc., equipment will have been set the distance of required welding; When welding, welding electrode makes the multiple layer metal filter screen that plastic deformation occur by the local pyrexia of welding current place, applies certain pressure in weldment heating contact position simultaneously, forms nugget; After being soldered one peak as need weld again together, can operating traveling electrode and move to left or move to right and realize, realize that automatic welding of fast automatic roll-forming completes.
The invention has the beneficial effects as follows: rolling of (1) multiple layer metal filter screen, by rolling arm drivening rod and chain, automatically complete, the filter cylinder rolled into is between layers in conjunction with closely, the geomery specification, filter cylinder is solid certain intensity; (2) conducting block is preset on mandrel, two electrode tips are arranged in parallel and point-blank also can parallelly be staggered, ingeniously overcome the difficult point that traditional electrode must be arranged above and below, utilize the relation of two interelectrode contact resistances and thrust, thereby come the heat of control electrode greatly to guarantee welding quality; (3), welding when can realize the multiple layer metal net, welding distance and step pitch can be set by numeral, editor's welding procedure is realized automatic welding; (4), once can weld the above multilayer composite metal filter screen of 5m or weld longer MULTILAYER COMPOSITE filter screen according to instructions for use; (5), the screen tube after welding well can be extracted by automatic extracting apparatus;
The present invention can realize automatic welding of fast automatic roll-forming, and the barrel strainer of moulding is solid certain intensity, geomery specification, and the good regular intensity attractive in appearance of weldquality is high, and the advantage such as processing super long part according to requirements.
The accompanying drawing explanation:
Accompanying drawing 1 is structural representation of the present invention;
Accompanying drawing 2 is section structure schematic diagrames of the present invention;
In upper figure: power supply assembly 1, lathe bed 2, carriage walking assembly 3, mandrel 4, automatic reel arm 5, float support 6, support cylinder 7, hold connecting rod 8 tightly, support link 9, air-channel system 10, guide rail 11, transmission system 12, positioner 13, Programmable Logic Controller CRT guidance panel 14, auxiliary compressor arm 15, the controlled welding electrode 16 of direct current, mandrel conducting block 17, roll arm chain 18, welded part 19, lower support 20.
The specific embodiment:
1-2 by reference to the accompanying drawings, the invention will be further described:
The present invention mainly by power supply assembly 1, lathe bed 2, carriage walking assembly 3, mandrel 4, automatic reel arm 5, float support 6, support cylinder 7, hold connecting rod 8 tightly, support link 9, air-channel system 10, guide rail 11, transmission system 12, positioner 13, Programmable Logic Controller CRT guidance panel 14, auxiliary compressor arm 15, the controlled welding electrode 16 of direct current, mandrel conducting block 17, roll arm chain 18, welded part 19, lower support 20 form.Described lathe bed 2 tops are provided with walking dolly assembly 3, and walking dolly assembly 3 moves by guide rail 11, and the controlled welding electrode 16 of direct current and auxiliary compressor arm 15 are arranged on walking dolly assembly 3 bottoms; One end of mandrel 4 is fixed on lathe bed one side, and mandrel conducting block 17 connects and is arranged in the mandrel upper slot, and lower support 20 is fastened on lathe bed base by float support 6, support cylinder 7, between support cylinder 7, by support link 9, connects transferring power; The required multiple layer metal filter screen that rolls and weld is laid on lower support 20, by supporting cylinder 7 pressure that the multiple layer metal filter screen is certain with mandrel 4 maintenances, described automatic reel arm 5 drives roll arm chain 18 the multiple layer metal filter screen is rolled closely on mandrel 4, the controlled welding electrode 16 of direct current descends, and the multiple layer metal filter screen is welded.
Wherein power supply assembly 1 be mainly this device power supply (DPS) into and out of and the main control loop part; Main the rising of lathe bed 2 supported and guide effect; Carriage walking assembly 3 comprises commutator transformer, welding machine controller, servo controller and Group of Silicon Controlled Rectifier water cooling system etc.The alternating current that transformer carrys out the power supply assembly is converted to low pressure and through the Group of Silicon Controlled Rectifier rectification, thereby welding machine controller is controlled the electric current of the size control electrode of silicon controlled Trigger Angle, and cooling system provides circulating cooling liquid for transformer, controllable silicon and electrode; Mandrel 4 mainly plays core rod effect while conducting block and is laid in its groove; Reel arm 5 is delivered to chain by power by arm for the motive power that rolls filter cylinder; The effect of lower float support 6 is to make between the welded filter screen of multilayer and mandrel to keep a suitable thrust when lower support rises; Supporting cylinder 7 has been mainly the effect that allows lower support rise and to descend; The effect of holding connecting rod 8 tightly be by transmission of power to a plurality of reel arms; Main the rising of support link 9 transmitted the power that makes lower support rise and descend; Air-channel system 10 is mainly to provide power for pneumatic part by gas source triplet (water-separating gas filter, pressure-reducing valve and oil sprayer form) electromagnetic gas valve, one-way throttle valve, muffler etc.; It is the track of walking dolly assembly that guide rail 11 adopts the line rail; Positioner 13 is used for monitoring position and the distance of carriage walking; Programmable Logic Controller CRT guidance panel 14, mainly play edit routine, input welding parameter; Auxiliary compressor arm 15 is that the filter screen limit rolled is pushed down, ready for welding; Controlled welding electrode 16, two electrodes of direct current are parallel in upper arrangement, utilize the conducting block conduction be laid in advance in the mandrel groove, overcome the difficult point that traditional electrode is arranged above and below, and the problem that has solved inner support makes the weldment can be very long; Mandrel conducting block 17 is laid and is mainly play a part to make to conduct electricity between two electrodes on the mandrel total length; Roll arm chain 18 mainly plays a part to roll holds filter screen tightly; Lower support 20 is supporters of filter screen, bears welding electrode simultaneously and acts on the downforce on mandrel, and welded part 19 is the multilayer composite metal filter screen.
Add and comprise the following steps man-hour:
(a) the required multiple layer metal filter screen that rolls and weld is laid on lower support 20, starting lower support rises, support cylinder 7 jack-up float supports 6 and make multiple layer metal filter screen and mandrel 4 keep certain pressure, start automatic reel arm 5 drive roll arm chains 18 the multiple layer metal filter screen is rolled closely on mandrel;
(b) start the controlled welding electrode 16 of direct current and descend, welding parameter is set, heat pressure, every frame weld interval, precompressed and holding time, welding apart from and step pitch etc., equipment will have been set the distance of required welding; When welding, welding electrode makes the multiple layer metal filter screen that plastic deformation occur by the local pyrexia of welding current place, applies certain pressure in weldment heating contact position simultaneously, forms nugget; After being soldered one peak as need weld again together, can operating traveling electrode and move to left or move to right and realize, realize that automatic welding of fast automatic roll-forming completes.
The present invention can realize that automatic welding of fast automatic roll-forming completes, and the barrel strainer of moulding is solid certain intensity, geomery specification, and the good regular intensity attractive in appearance of weldquality is high, and the advantage such as processing super long part according to requirements.
Claims (5)
1. a multilayer composite metal filter screen overlength automatic welding device, it is characterized in that: mainly by power supply assembly (1), lathe bed (2), walking dolly assembly (3), mandrel (4), automatic reel arm (5), hold connecting rod (8) tightly, air-channel system (10), guide rail (11), transmission system (12), the controlled welding electrode of direct current (16), mandrel conducting block (17) and lower support (20) form, described lathe bed (2) top is provided with walking dolly assembly (3), walking dolly assembly (3) is mobile by guide rail (11), the controlled welding electrode of direct current (16) and auxiliary compressor arm (15) are arranged on walking dolly assembly (3) bottom, one end of mandrel (4) is fixed on lathe bed one side, mandrel conducting block (17) connects and is arranged in the mandrel upper slot, lower support (20) is fastened on lathe bed base by float support (6), support cylinder (7), between support cylinder (7), by support link (9), connects transferring power, the required multiple layer metal filter screen that rolls and weld is laid on lower support (20), by supporting cylinder (7), multiple layer metal filter screen and mandrel (4) are kept to certain pressure, described automatic reel arm (5) drives roll arm chain (18) the multiple layer metal filter screen is rolled closely on mandrel (4), the controlled welding electrode of direct current (16) descends, and the multiple layer metal filter screen is welded.
2. multilayer composite metal filter screen overlength automatic welding device according to claim 1, it is characterized in that: described walking dolly assembly (3) comprises commutator transformer, welding machine controller, water cooling system, the alternating current that commutator transformer carrys out the power supply assembly is converted to low pressure and through the Group of Silicon Controlled Rectifier rectification, thereby welding machine controller is controlled the electric current of the size control electrode of silicon controlled Trigger Angle, and cooling system provides circulating cooling liquid for transformer, controllable silicon and electrode.
3. multilayer composite metal filter screen overlength automatic welding device according to claim 1, it is characterized in that: described mandrel (4) is provided with mandrel conducting block (17), for making, between two electrodes, conducts electricity.
4. multilayer composite metal filter screen overlength automatic welding device according to claim 1, it is characterized in that: described air-channel system comprises gas source triplet, electromagnetic gas valve, one-way throttle valve and muffler, be mainly for pneumatic part provides power, described gas source triplet is comprised of water-separating gas filter, pressure-reducing valve and oil sprayer.
5. a multilayer composite metal filter screen overlength automatic soldering method is characterized in that being realized by following steps:
(a) the required multiple layer metal filter screen that rolls and weld is laid on lower support (20), starting lower support rises, support cylinder (7) jack-up float support (6) and make multiple layer metal filter screen and mandrel (4) keep certain pressure, start automatic reel arm (5) drive roll arm chain (18) the multiple layer metal filter screen is rolled closely on mandrel;
(b) start the controlled welding electrode of direct current (16) and descend, welding parameter is set, heat pressure, every frame weld interval, precompressed and holding time, welding apart from and step pitch; When welding, welding electrode makes the multiple layer metal filter screen that plastic deformation occur by the local pyrexia of welding current place, applies certain pressure in weldment heating contact position simultaneously, forms nugget; After being soldered one peak as need weld again together, can operating traveling electrode and move to left or move to right and realize, realize that automatic welding of fast automatic roll-forming completes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110372622 CN102513671B (en) | 2011-11-22 | 2011-11-22 | Super long automatic welding equipment and method for multiple layers of composite metal filter screens |
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| CN 201110372622 CN102513671B (en) | 2011-11-22 | 2011-11-22 | Super long automatic welding equipment and method for multiple layers of composite metal filter screens |
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| CN102513671A CN102513671A (en) | 2012-06-27 |
| CN102513671B true CN102513671B (en) | 2013-12-25 |
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| CN104741763B (en) * | 2013-12-31 | 2017-02-15 | 深圳市鹏煜威科技有限公司 | Resistance welding machine with floating device and resistance welding method |
| CN106335006A (en) * | 2016-08-30 | 2017-01-18 | 来安县科来兴实业有限责任公司 | Sand blasting device for casting of mounting tube seat mold of train set braking system |
| CN108907427A (en) * | 2018-09-18 | 2018-11-30 | 优尼恩电机（大连）有限公司 | Multiple layer metal welder and its welding method |
| CN109200652A (en) * | 2018-10-08 | 2019-01-15 | 马亚宏 | A kind of manufacturing device of sewage water filtration bucket |
| CN117260094B (en) * | 2023-11-21 | 2024-02-06 | 胜利油田玺润石油工程有限公司 | Jar body continuous welding device |
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| CN2616332Y (en) * | 2003-04-02 | 2004-05-19 | 张富成 | Slot filter screen welding machine |
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| CN201815789U (en) * | 2010-09-03 | 2011-05-04 | 北京全有时代科技有限公司 | Welding machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7716834B2 (en) * | 2006-02-27 | 2010-05-18 | Beijing Hinen-Hitech Petroleum Technology Development Co., Ltd | Screen manufacturing method and welding apparatus thereof |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4319112A (en) * | 1978-10-10 | 1982-03-09 | Connolly James D | Screen welding machine |
| CN2616332Y (en) * | 2003-04-02 | 2004-05-19 | 张富成 | Slot filter screen welding machine |
| CN2714228Y (en) * | 2004-08-17 | 2005-08-03 | 河北正大机械制造有限公司 | Numerically controlled screen welding machine |
| CN101116927A (en) * | 2004-10-25 | 2008-02-06 | 北京海能海特石油科技发展有限公司 | Welding equipment of the sand prevention tube |
| CN201211587Y (en) * | 2008-07-07 | 2009-03-25 | 孙厚远 | Welding equipment of metallic sieve |
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| CN201815789U (en) * | 2010-09-03 | 2011-05-04 | 北京全有时代科技有限公司 | Welding machine |
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