CN101306485B - Rotary electrode electric-fusion welding automatic back gouging device - Google Patents
Rotary electrode electric-fusion welding automatic back gouging device Download PDFInfo
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- CN101306485B CN101306485B CN2008100501940A CN200810050194A CN101306485B CN 101306485 B CN101306485 B CN 101306485B CN 2008100501940 A CN2008100501940 A CN 2008100501940A CN 200810050194 A CN200810050194 A CN 200810050194A CN 101306485 B CN101306485 B CN 101306485B
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Abstract
A rotary-electrode electric-fusion welding seam automatic back gouging device is characterized in that the device includes a machine frame with a travel mechanism and a back gouging machine (12) arranged on the machine frame via a regulating mechanism; the back gouging machine (12) includes an actuating motor which is combined with the regulating mechanism, an insulating bush (22) and a hollow shaft (21) which are sequentially sleeved on an output shaft (23) of the actuating motor in a stationary fit manner, an electrode plate (20) which is sleeved on the insulating bush (22) and is press-mounted at the front end of the hollow shaft (21) via a press plate, two electric brushes which are mounted outside the hollow shaft and are contacted with the hollow shaft in a movable fit manner, and a gas spout with the portal-type structure which is fixed on the front end cover of the actuating motor in the manner of crossing the electrode plate (20), wherein two nozzles (34) are respectively arranged at two lower ports of the gas spout, the spouting vents of the nozzles (34) are tilted downwards and arranged on the two sides of the electrode plate (20) in an opposite manner, and the gas spout is connected with a compressed air supply via an air inlet pipe opening (25).
Description
Technical field
The present invention relates to welding technology field, relate to a kind of rotary electrode electric-fusion welding automatic back gouging device specifically.
Background technology
Extensive fast development along with modern petroleum industry, long distance pipeline and large-scale storage tank engineering solder technology just develop towards high-quality, low cost, high efficiency direction, solder technology is in continuous progress, when automaticity was more and more higher, the quality and the rate request of butt welded seam back chipping were also more and more higher.
In long distance pipeline, large-scale storage tank, pressure vessel fabrication and installation process, welding is a key link, and welding quality directly has influence on the service life and the security of product.In order to guarantee welding quality, it is the important process measure that guarantees the moulding of weld seam penetration that the back chipping in the construction is handled.When two-sided welding, at first the weld bond to groove one side welds, and postwelding carries out the back chipping processing to the weld bond of opposite side again, to remove the defective in back side root of weld and the removing weld seam, if back chipping is not thorough, will influences welding quality and cause security incident.At present, existing back chipping technology adopts carbon arc air gouging, angle frosted turbine, plasma arc back chipping method usually, wherein; Angle frosted turbine, carbon arc air gouging are conventional methods, in engineering, use comparatively extensive, though the plasma arc back chipping has relevant patent and report, the still unexposed example that industrial applications is arranged.
Carbon arc air gouging is to utilize the electric arc that produces between carbon-point and the workpiece with metal molten, and with compressed air it is blown off, is implemented in the method for metal surface groove processing.The carbon arc air gouging back chipping is the method that is most widely used in the present welding procedure, its shortcoming; The one, manual operations is difficult to grasp to technological specification, and the weld seam behind the back chipping often width differs, and the depth is irregular, is easy to generate knot carbon phenomenon.Especially to single double V-groove of automatic weldering, the groove shape and size behind the back chipping are difficult to guarantee, directly have influence on the raising of weldquality and welding efficiency.The 2nd, noise, flue gas environmental pollution that the carbon arc air gouging back chipping produces are serious, are unfavorable for environmental protection.The 3rd, used carbon-point scaling loss is fast, can not work continuously, and work efficiency is low, the construction cost height.
Wheel grinding is a kind of processing method of machine cut.Though wheel grinding is more flexible to the adaptability of workpiece grooves back chipping, groove face is smooth after the grinding, and the phenomenon of non-oxidation layer carburetting occurs.But because the manual grinding operation, it is bigger influenced by human factor, is difficult to guarantee the groove shape and size.In addition, because wheel grinding is difficult to realize the operation of automation, labour intensity is big, the noise height, and dust is many, work under bad environment.Plasma arc cutting is to utilize the plasma flame flow of high temperature and high speed to heat, and with localized metallic fusing and blowing, forms otch, and no carburizing phenomenon is followed.It is very concentrated that incisory plasma arc has energy, the characteristics that arc is short, arc is hard.If do back chipping usefulness with such plasma arc, arc column dark and narrow groove can occur through part, will be difficult to go out clearly smooth surface like this, also can't realize the back chipping degree of depth and groove shape.Plasma apparatus needs supporting power source special, gas cylinder and cooling water system in addition, and coordinative composition of equipments uses and is difficult at the construction field (site) realize that cost is higher.
In sum; In the welding procedure of larger hydrocarbon storage tank, high-strength thick force container, the long oil and gas pipeline of heavy caliber etc., above back chipping method in various degree have that labour intensity is big, the control of back chipping difficult quality, efficient is low, construction cost is high shortcoming.Therefore, study practicable automatic back chipping device and will play great effect raising welding quality, reduction construction cost.
Summary of the invention
Purpose of the present invention is applicable to the rotary electrode electric-fusion welding automatic back gouging device that larger hydrocarbon storage tank, high-strength thick force container, the long oil and gas pipeline of heavy caliber etc. is carried out welding procedure just for these reasons.Mentality of designing of the present invention is to adopt the disc type rotation electrode, causes electric arc between disc type rotation electrode and workpiece weld seam, utilizes the ablation of compressed air and electrode disk to realize to being melted the automatic cleaning of the root of weld, to solve existing back chipping technical deficiency.
Purpose of the present invention can realize by following technique measures:
This device of rotary electrode electric-fusion welding automatic back gouging device of the present invention comprises the frame that is provided with walking mechanism, by the rack-mounted back chipping machine of governor motion; Described back chipping machine comprises the drive motors that combines with governor motion, be sleeved on insulation sleeve and hollow shaft on the drive motors output shaft successively in the stationary fit mode, be sleeved on the insulation sleeve and be fitted in the electrode disk of hollow shaft front end by pressing plate, be installed in outside the hollow shaft, and with contacted two brushes of mode and hollow shaft movingly, and be fixedly mounted on the air jet pipe that is character on the drive motors drive end bearing bracket in mode across electrode disk, two lower port at air jet pipe are separately installed with a nozzle, it is tilting downwards that the spout of two nozzles all is, and relative mode is arranged on the electrode disk both sides, and described air jet pipe links to each other with compressed gas source by the air inlet mouth of pipe.
Brush described in the present invention is semi-circular structure, combines with the hollow shaft outer wall by holddown spring; The tapered structure of the cross section of the peripheral edge portion of described electrode disk;
Frame described in the present invention is the frame of vertical structure, and described walking mechanism comprises the drive unit of being made up of the motor and speed reducer structure, is installed in the driving wheel on the drive unit output shaft; And this walking mechanism is installed in the top of frame by connector, is used to adjust between frame and workpiece apart from stabilizer mechanism being equipped with on the frame below the walking mechanism; Described back chipping machine is installed on the frame of stabilizer mechanism below by the governor motion of being made of vertical adjusting slider and traverse feed slide plate, wherein vertically the axis of adjusting slider parallels with the montant that constitutes frame, and by connector and frame Joint, the traverse feed slide plate is installed in the end of vertical adjusting slider, and the axis of traverse feed slide plate is perpendicular with the axis of vertical adjusting slider, the drive motors of back chipping machine combines with the traverse feed slide plate by connector, and the axis of the axis of drive motors and traverse feed slide plate is perpendicular; Air jet pipe in the described back chipping machine links to each other with air compressor machine on being arranged on frame by the air inlet mouth of pipe and connecting line.
The mechanism of stabilizer described in the present invention is by the rack-mounted screw pair of level, forming with contacted stabilizer of welded part facade and the adjusting handle that is arranged in the screw pair spiro rod rear end of being installed in screw front end in the screw pair.
The brush of the machine of back chipping described in the present invention is electrically connected with the Arc Welding Power that is positioned at frame lower by cable, and another utmost point earth cable of drawing from Arc Welding Power is connected with welded part.
Frame among the present invention is a frame structure, and is provided with the telescopic joint that is used to regulate bracket height between the framework montant.
The present invention also can realize by the following technical solutions: the drive motors of described back chipping machine is installed on the frame by the governor motion that is made of the traverse feed slide plate; Wherein, described frame is a plank frame, frame is provided with the walking mechanism of being made up of the motor-driven sheave of walking mechanism that matches with rail bracket, described traverse feed slide plate is installed on the frame in the mode of its axis normal in the frame plane, and the drive motors of described back chipping machine is installed on the traverse feed slide plate in the mode of its axis normal in traverse feed slide plate axis.
The present invention has following beneficial effect:
Because the present invention provides the back chipping electric current by Arc Welding Power, between electrode disk of rotating and workpiece weld seam, cause electric arc, and provide compressed air by air compressor machine, utilize the ablation of compressed air and electrode disk to realize to being melted the automatic cleaning of the root of weld.The fusing effect that had so both had electric arc, the mechanical grinding effect that has the disc type electrode again, groove is regular behind the back chipping, cost is low, the groove non-scale, and can clean out difform groove as requested, and can realize directly welding purpose behind the back chipping, weld seam back chipping quality is further guaranteed.Compared to existing technology: stopped noise, smog and dust that manual carbon arc air gouging and manual emery wheel back chipping are produced, improved operating environment.
In addition, equipment of the present invention can be according to welded part as the difference of pipeline, storage tank, construction of pressure vessel, by being hung to be installed on the tank shell or with walking mechanism, walking mechanism is installed on the ring type track, it is clear to realize that storage tank, container or pipeline are carried out weld seam, and back chipping speed reaches 2 meters/minute; The air compressor machine of coordinative composition of equipments, Arc Welding Power also can adopt on-the-spot common apparatus, can further save equipment investment.Utilize equipment butt welded seam back chipping of the present invention, not only the back chipping surface quality is good, and mechanization, automaticity height, and is easy and simple to handle, labor strength is low, and the back chipping work efficiency is significantly improved, and labour intensity reduces significantly.
Description of drawings
Fig. 1 is the structure installation diagram of first kind of embodiment of the present invention.
Fig. 2 is the structure installation diagram of second kind of embodiment of the present invention.
Fig. 1, sequence number among Fig. 2: 1 Arc Welding Power, 2 welded parts, the drive motors of 3 back chipping machines, 4 connecting lines, 5 stabilizer mechanisms, 6 walking mechanism motors, 7 walking mechanisms, 8 air compressor machines, 9 frames, 10 are used to regulate the telescopic joint of bracket height, 11 frame walking mechanisms, the back chipping machine, the control cabinet of air compressor machine and Arc Welding Power, 12 back chipping machines, 13 traverse feed slide plates, 14 regulate leading screw, 15 handwheels, 16 vertical adjusting sliders, 17 handwheels, 18 insulating washers, 19 pressing plates, 20 electrode disk, 21 hollow shafts, 22 insulation sleeves, 23 output shafts, 24 brushes, the 25 air inlet mouths of pipe, 26 feed rods, 27 handwheels, 28 leading screws, 29 traverse feed slide plates, 30 sheaves, 31 frames, 32 rail brackets, 33 walking mechanism motors, 34 nozzles.
The specific embodiment
The present invention is to be further described below with reference to embodiment (accompanying drawing):
As shown in Figure 1, the weld bond that is mainly used in large-scale storage tank of present embodiment carries out the back chipping operation.Present embodiment comprises the Vertical Rack of frame structure, be provided with the walking mechanism 7 that to make displacement movement along the welded part end face on the top of frame, be equipped with at the central rack below the walking mechanism and be used to adjust between frame and workpiece apart from stabilizer mechanism 5, be used to adjust the distance of frame and workpiece, frames steadily moves; On the following methods, rack of stabilizer mechanism 5, back chipping machine 12 is installed; Described back chipping machine 12 comprises that (wherein vertically the axis of adjusting slider 16 parallels with the montant that constitutes frame by the rack-mounted drive motors of being made up of vertical adjusting slider 16 and traverse feed slide plate 13 3 of governor motion, and by connector and frame Joint, traverse feed slide plate 13 is installed in the end of vertical adjusting slider 16, and the axis of traverse feed slide plate 13 is perpendicular with the axis of vertical adjusting slider 16, the drive motors 3 of back chipping machine 12 combines with traverse feed slide plate 13 by connector, and the axis of the axis of drive motors 3 and traverse feed slide plate 13 is perpendicular), be sleeved on insulation sleeve 22 and hollow shaft 21 on the drive motors output shaft 23 successively in the stationary fit mode, be sleeved on the insulation sleeve 22 and be fitted in the electrode disk 20 of hollow shaft 21 front ends by pressing plate 19, be installed in outside the hollow shaft, and in mode movingly by holddown spring and contacted two brushes 24 that are semi-circular structure of hollow shaft outer wall, and be fixedly mounted on the air jet pipe that is character on the drive motors drive end bearing bracket in mode across electrode disk 20, two lower port at air jet pipe are separately installed with a nozzle 34, it is tilting downwards that the spout of two nozzles 34 all is, and relative mode is arranged on electrode disk 20 both sides, is used for melt metal is blown away under compressed-air actuated effect; Described air jet pipe links to each other with air compressor machine 8 on being arranged on frame by the air inlet mouth of pipe 25 and connecting line 4; The shape of cross section of described electrode disk 20 peripheral edge portions identical with the groove shape of welded part 2 (structure of back chipping machine and component serial number are referring to shown in Figure 2).
The mechanism 5 of stabilizer described in the present embodiment is by the rack-mounted screw pair of level, forming with contacted stabilizer of soldered sheet material facade and the adjusting handle that is arranged in the screw pair spiro rod rear end of being installed in screw front end in the screw pair; Described walking mechanism 7 comprises the drive unit of being made up of motor 6 and reducing gear, is installed in the driving wheel on the drive unit output shaft; Described back chipping electromechanical brush 24 is electrically connected with the Arc Welding Power 1 that is positioned at frame lower by cable, and another utmost point earth cable of drawing from Arc Welding Power 1 is connected with welded part 2.For adapting to the needs of different workpieces height, the present invention is provided with the telescopic joint 10 that is used to regulate bracket height between the frame montant of tower structure, can be according to the position of workpiece weld seam, and the telescopic adjustment bracket height is screwed after the adjusting.
The governor motion of being made up of vertical adjusting slider 16 and traverse feed slide plate 13 that is used to regulate the back chipping machine in the present embodiment adopts the feed rod guiding to add the technical scheme of lead screw transmission, vertical mutually the installation, and feed slide 13 is fastened on the frame with framework.Regulate vertical adjusting slider by handwheel 17 and move up and down, in order to horizontal centering; Regulate leading screws 14 by handwheel 15, the worm drive slide plate, move left and right is in order to adjusting the back chipping degree of depth, realizing the free adjustment of both direction, weld seam to the neutrality and the back chipping degree of depth when guaranteeing back chipping.
The course of work of present embodiment is as follows:
When the device of employing present embodiment carries out back chipping work to the storage tank weld bond, the device of present embodiment can be hung on the upper limb of stave sheets 2 by walking mechanism 7, make the horizontal centering weld seam of electrode disk by adjusting handle 17, and adjust the back chipping degree of depth of electrode disk by adjusting handle 15, connect the power supply of air compressor machine 8, air compressor machine 8 is started working, connect the power supply of motor 3, the rotation of driven by motor electrode disk, connect the power supply of Arc Welding Power 1 and travel driving motor 6, frame 9 can be advanced along stave sheets by certain speed of travel, and electrode disk rotation simultaneously promptly produces electric arc between electrode disk and the workpiece, under the effect of arc heat, the root of workpiece weld seam begins fusing, and melt metal is blown away under compressed-air actuated effect, meanwhile utilizes the ablation of electrode disk to realize being melted the automatic cleaning work of the root of weld.Because back chipping adopts the molten method of electrode, has automatically working efficient height, consumable material is few, and noise is little, does not have the characteristics of harmful flue dust.
As shown in Figure 2, present embodiment is mainly used in the back chipping operation of pipeline, container weld bond, and back chipping machine 12 structures in the present embodiment are identical with embodiment 1.The difference of two embodiment is: the drive motors 3 of described back chipping machine 12 is installed on the frame 31 by the governor motion that is made of traverse feed slide plate 29; Wherein, described frame 31 is a plank frame, frame 31 is provided with the walking mechanism that the sheave 30 that is driven by motor 33 that matches with rail bracket 32 is formed, described traverse feed slide plate 29 is installed on the frame in the mode of its axis normal in frame 31 planes, the drive motors 3 of described back chipping machine is installed on the traverse feed slide plate 29 in the mode of its axis normal in traverse feed slide plate 29 axis, this traverse feed slide plate adopts feed rod 26 guiding that be arranged in parallel, drives the scheme that leading screw 28 drives 12 traverse feeds of back chipping machine by handwheel 27.
The course of work of present embodiment is as follows:
When the device that adopts present embodiment carries out back chipping work to pipeline or container weld bond, earlier rail bracket 32 is fixed outward around pipeline or vessel, two sheaves 30 are installed on the rail bracket both sides, at this moment, adjust electrode disk and weld bond position.Afterwards, regulate leading screws 28, drive 29 motions of traverse feed slide plate, and then drive back chipping machine 12 and be synchronized with the movement, need the degree of depth of back chipping with adjustment with traverse feed slide plate 29 by handwheel 27.After treating that the adjustment of back chipping device is in place, connect compressed air source, make compressed air arrive nozzle 34 by the air inlet mouth of pipe 25.Start the power supply of Arc Welding Power and walking mechanism motor 33, device promptly can move by certain speed of travel boxing mouth direction, electrode disk rotation simultaneously, promptly produce electric arc between electrode disk and the workpiece, under the effect of arc heat, the root of workpiece weld seam begins fusing, melt metal is blown away under compressed-air actuated effect, the rotary electrode electric-fusion welding automatic back gouging device butt welded seam carries out back chipping to be handled, more than operation can realize wired or wireless remote-control operation by control button, flexibility and reliability, the automaticity height.
Claims (7)
1. rotary electrode electric-fusion welding automatic back gouging device, it is characterized in that: this device comprises the frame that is provided with walking mechanism, by the rack-mounted back chipping machine of governor motion (12); Described back chipping machine (12) comprises the drive motors (3) that combines with governor motion, be sleeved on insulation sleeve (22) and hollow shaft (21) on the drive motors output shaft (23) successively in the stationary fit mode, be sleeved on insulation sleeve (22) and go up and be fitted in the electrode disk (20) of hollow shaft (21) front end by pressing plate (19), be installed in outside the hollow shaft, and with contacted two brushes of mode and hollow shaft (24) movingly, and be fixedly mounted on the air jet pipe that is character on the drive motors drive end bearing bracket in mode across electrode disk (20), two lower port at air jet pipe are separately installed with a nozzle (34), the spout of two nozzles (34) all is tilting downwards, and relative mode is arranged on electrode disk (20) both sides, and described air jet pipe links to each other with compressed gas source by the air inlet mouth of pipe (25).
2. rotary electrode electric-fusion welding automatic back gouging device according to claim 1 is characterized in that: described brush (24) is semi-circular structure, combines by the outer wall of holddown spring with hollow shaft (21).
3. rotary electrode electric-fusion welding automatic back gouging device according to claim 1 is characterized in that: the shape of cross section of described electrode disk (20) peripheral edge portion is identical with the groove shape of welded part.
4. rotary electrode electric-fusion welding automatic back gouging device according to claim 1, it is characterized in that: described frame is the frame (9) of vertical structure, described walking mechanism comprises the drive unit of being made up of motor (6) and reducing gear, is installed in the driving wheel (7) on the drive unit output shaft; And this walking mechanism is installed in the top of frame (9) by connector, is used to adjust between frame and workpiece apart from stabilizer mechanism (5) being equipped with on the frame below the walking mechanism; Described back chipping machine (12) is installed on the frame of stabilizer mechanism (5) below by the governor motion of being made of vertical adjusting slider (16) and traverse feed slide plate (13), wherein vertically the axis of adjusting slider (16) parallels with the montant that constitutes frame, and by connector and frame Joint, traverse feed slide plate (13) is installed in the end of vertical adjusting slider (16), and the axis of traverse feed slide plate (13) is perpendicular with the axis of vertical adjusting slider (16), the drive motors (3) of back chipping machine (12) combines with traverse feed slide plate (13) by connector, and the axis of the axis of drive motors (3) and traverse feed slide plate (13) is perpendicular; Air jet pipe in the described back chipping machine (12) links to each other with air compressor machine (8) on being arranged on frame by the air inlet mouth of pipe (25) and connecting line (4).
5. rotary electrode electric-fusion welding automatic back gouging device according to claim 4 is characterized in that: described stabilizer mechanism (5) is by the rack-mounted screw pair of level, forming with contacted stabilizer of soldered sheet material facade and the adjusting handle that is arranged in the screw pair spiro rod rear end of being installed in screw front end in the screw pair.
6. rotary electrode electric-fusion welding automatic back gouging device according to claim 4 is characterized in that: frame (9) is a frame structure, and is provided with the telescopic joint (10) that is used to regulate bracket height between the framework montant.
7. rotary electrode electric-fusion welding automatic back gouging device according to claim 1 is characterized in that: the drive motors (3) of described back chipping machine (12) is installed on the frame (31) by the governor motion that is made of traverse feed slide plate (29); Wherein, described frame (31) is a plank frame, frame (31) is provided with the walking mechanism that the sheave (30) that is driven by walking mechanism motor (33) that matches with rail bracket (32) is formed, described traverse feed slide plate (29) is installed on the frame in the mode of its axis normal in frame (31) plane, and the drive motors of described back chipping machine (3) is installed on the traverse feed slide plate (29) in the mode of its axis normal in traverse feed slide plate (29) axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100501940A CN101306485B (en) | 2008-06-30 | 2008-06-30 | Rotary electrode electric-fusion welding automatic back gouging device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100501940A CN101306485B (en) | 2008-06-30 | 2008-06-30 | Rotary electrode electric-fusion welding automatic back gouging device |
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| Publication Number | Publication Date |
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| CN101306485A CN101306485A (en) | 2008-11-19 |
| CN101306485B true CN101306485B (en) | 2010-07-28 |
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| CN2008100501940A Expired - Fee Related CN101306485B (en) | 2008-06-30 | 2008-06-30 | Rotary electrode electric-fusion welding automatic back gouging device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106475659A (en) * | 2016-03-02 | 2017-03-08 | 徐工集团工程机械有限公司 | Gouge equipment |
| CN108032147B (en) * | 2017-12-08 | 2019-10-25 | 上海航天设备制造总厂有限公司 | Spiral inner wall line weld grinding control method and device |
| CN109975416A (en) * | 2017-12-27 | 2019-07-05 | 核动力运行研究所 | A kind of scanning tool for nuclear power station spent fuel reservoir cladding plate weld seam detection |
| CN113172303B (en) * | 2021-05-08 | 2022-12-06 | 浙江港安智能科技有限公司 | Welding seam back chipping device suitable for multiple scenes |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201304538Y (en) * | 2008-06-30 | 2009-09-09 | 中国石油天然气管道局 | Automatic rotary electrode fusion welding seam back chipping device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201304538Y (en) * | 2008-06-30 | 2009-09-09 | 中国石油天然气管道局 | Automatic rotary electrode fusion welding seam back chipping device |
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