CN101306488B - Double arc four wire automatic arc-submerging welder and manufacture method thereof - Google Patents
Double arc four wire automatic arc-submerging welder and manufacture method thereof Download PDFInfo
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- CN101306488B CN101306488B CN2007100406231A CN200710040623A CN101306488B CN 101306488 B CN101306488 B CN 101306488B CN 2007100406231 A CN2007100406231 A CN 2007100406231A CN 200710040623 A CN200710040623 A CN 200710040623A CN 101306488 B CN101306488 B CN 101306488B
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- 238000004519 manufacturing process Methods 0.000 title abstract description 11
- 238000000034 method Methods 0.000 title description 4
- 238000003466 welding Methods 0.000 claims abstract description 143
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 230000004907 flux Effects 0.000 claims description 21
- 238000011084 recovery Methods 0.000 claims description 13
- 230000009977 dual effect Effects 0.000 claims description 5
- 238000005491 wire drawing Methods 0.000 claims description 5
- 229910000679 solder Inorganic materials 0.000 abstract 2
- 238000010327 methods by industry Methods 0.000 abstract 1
- 230000001012 protector Effects 0.000 abstract 1
- 230000008569 process Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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Abstract
The invention discloses a double-arc four-wire automatic submerged arc welding machine and the manufacturing method thereof. The automatic submerged arc welding machine include a welding power supply, an upright post which is arranged on a trolley and a running gear and is provided with a top part with a lifting mechanism, a cross arm which is movably connected with the lifting mechanism and can move up and down along the upright post, a welding head which is equipped with a welding gun and a solder hopper, a wire guide arranged between the welding gun and a welding wire spool, a wire feeding device, a swing mechanism which is arranged on the trolley and is used for control the upright post to rotate relatively to the trolley, and an electric control cabinet which is fixed on the upright post. Compared with the prior art, the double-arc four-wire automatic submerged arc welding machine of the invention has the advantages as follows: the structure is novel, the arrangement is reasonable; the process engineering parameters such as power efficiency and so on are improved for satisfying technological requirements of welding a gas steam turbine; the welding efficiency can be increases by at least three times; a machine head, an operator seat lifting arm, a corner, a falling protector and other devices are arranged; the solder can be automatically reclaimed and fed, and applied continuously, thereby reducing labor intensity, improving operational environment and conducing to operation.
Description
Technical Field
The invention relates to automatic submerged arc welding process equipment, in particular to a double-arc four-wire automatic submerged arc welding machine and a manufacturing method thereof.
Background
In the process of manufacturing the gas turbine, a large amount of automatic submerged arc welding workload is carried out, particularly the welding of a #2 cylinder (connecting cylinder) #3 cylinder (turbine cylinder). Currently, these welding operations can only be performed with only single, heavy wire, automatic submerged arc welding machines. Because adopt single welding wire, and the welding work of grudging post, crossbeam of welding machine, operating range are limited etc. factor, so produced:
1. the welding efficiency is low, and the welding wire with the diameter of 4mm only welds 6.5-7 kg (25 kg of coiled wire) per hour.
2. The deformation of the workpiece is large, so that the local part of the workpiece has no machining allowance, the repair welding is needed, and the quality and the appearance of the workpiece are influenced. In addition, because of the characteristics of the thick wire such as molten pool, molten depth and the like, the thick wire is molten and crystallized for multiple times between layers, and the quality of the welding seam is relatively poor.
3. The labor intensity is high, the welding wires are frequently changed, and the welding flux needs to be added manually, recovered and the like.
4. The welding machine has limited operation space, cannot meet the welding range of large workpieces, and needs to be heightened to operate the height, shift, build an operation platform and the like during welding, so that a large amount of auxiliary workload is increased, and unsafe factors exist.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a double-arc four-wire automatic submerged arc welding machine and a manufacturing method thereof, wherein the double-arc four-wire automatic submerged arc welding machine can improve welding efficiency, reduce deformation of a welding part and ensure quality of a welding seam.
The purpose of the invention is realized by the following technical scheme: a double-arc four-wire automatic submerged arc welding machine comprises a welding power supply, an upright post, a cross arm, a welding head, a wire guide pipe, a wire feeding mechanism, a slewing mechanism and an electric control cabinet, wherein the upright post is provided with a lifting mechanism at the top and is positioned on a trolley and a walking device, the cross arm is movably connected with the lifting mechanism and can move up and down along the upright post, the welding head is provided with a welding gun and a welding flux hopper, the wire guide pipe is positioned between the welding gun and a welding wire disc, the slewing mechanism is used for controlling the upright post to rotate relative to the trolley and is arranged on the trolley, the electric control cabinet is fixed on the upright post, the welding head is arranged at one end of the cross arm through a head lifting arm, can vertically lift along the cross arm; the two welding guns can rotate along with the rotation of the welding head; the wire feeding mechanism comprises four wire discs arranged on a trolley in front of the upright post and connected with the side wall of the upright post, a wire pushing device and a wire drawing device, wherein a welding wire is led out from each wire disc and is respectively led into the inner cavities of the four wire guide pipes, and the wire drawing device is arranged on a welding head and is used for conveying the welding wires in the wire guide pipes into two welding gun contact nozzles in a double-double mode.
In the double-arc four-wire automatic submerged arc welding machine, the welding gun contact tube is provided with the angle adjusting mechanism.
The double-arc four-wire automatic submerged arc welding machine is characterized in that a machine head rotating mechanism and a cross-shaped dragging plate arranged on the machine head rotating mechanism are further arranged between the welding machine head and the machine head lifting arm, and the welding gun and the welding flux hopper are arranged on the cross-shaped dragging plate.
In the double-arc four-wire automatic submerged arc welding machine, the welding power supply is two inverter power supplies AC/DC1000 which are arranged behind the stand column and connected with the side wall of the stand column, and the swing mechanism is arranged on the trolley between the stand column and the welding power supply.
The double-arc four-wire automatic submerged arc welding machine further comprises a remote automatic flux conveying and recovering device, wherein the remote automatic flux conveying and recovering device comprises a vacuum pump arranged beside the welding power supply, a recovery barrel arranged at the other end of the cross arm, a flux recovery pipe connected between the recovery barrel and the vacuum pump, and a flux conveying pipe connected between the recovery barrel and the flux hopper.
The double-arc four-wire automatic submerged arc welding machine further comprises a seat arranged at one end of the cross arm through a seat lifting arm.
In the double-arc four-wire automatic submerged arc welding machine, the machine head lifting arm and the seat lifting arm are hydraulic lifting mechanisms.
In the double-arc four-wire automatic submerged arc welding machine, the trolley and the walking device can linearly and horizontally move through a guide rail arranged on the ground.
The invention relates to a manufacturing method of a double-arc four-wire automatic submerged arc welding machine, which comprises the following steps:
firstly, selecting and matching a welding power supply; secondly, calculating parameters such as rigidity, operation range, moment, power and the like of the trolley, the walking device, the upright post, the cross arm and the machine head lifting arm; then processing each part; then assembling is carried out; and finally, assembling, debugging and welding a test board on site to obtain the double-arc spacing and the arrangement angle of the four wires.
The manufacturing method of the double-arc four-wire automatic submerged arc welding machine is characterized in that during field assembly, a single arc and double arcs can be arranged, and adjustable control functions such as arc starting time and arc stopping time of front and rear arcs can be set.
Compared with the prior art, the double-arc four-wire automatic submerged arc welding machine has the following advantages:
1. the equipment has novel structure and reasonable configuration.
2. The functional efficiency and other technological parameters are improved, and the welding process requirements of the gas turbine can be met.
3. The welding efficiency can be improved by at least three times, 4 x phi 2mm welding wires can be welded by 25-30 kg (wire coils are 100kg) per hour, and the advantages of high welding rate, small workpiece deformation and good welding seam quality are fully embodied.
4. The humanized design is provided with a machine head, a lifting arm of an operator seat, a device capable of rotating angles and preventing falling and the like.
5. The flux can be automatically recovered and conveyed and can be continuously welded, thereby not only reducing the labor intensity, but also improving the operating environment.
6. The upright column, the cross arm and the operation space are large, the trolley can run on the track, the limitation of the size of a workpiece is avoided, and the operation is convenient.
Drawings
The following detailed description of the invention is given in conjunction with the accompanying drawings:
FIG. 1 is a front view of the dual arc four wire automatic submerged arc welding machine of the present invention;
FIG. 2 is a side view of the dual arc four wire automatic submerged arc welding machine of the present invention;
fig. 3 is a top view of the double arc four wire automatic submerged arc welding machine of the present invention.
Detailed Description
Referring to fig. 1, 2 and 3, the double-arc four-wire automatic submerged arc welding machine of the present invention comprises a welding power supply 1, a trolley and traveling device 2, a column 3, a cross arm 4, a welding head 5, a wire feeding mechanism, a wire guiding pipe 7, a swing mechanism 8 and an electric control cabinet 9. Wherein,
the welding power supply 1 is two inverter AC/DC1000 power supplies which are arranged behind the upright post 3 and connected with the side wall of the upright post 3.
The carriage and the traveling device 2 can linearly and horizontally move on a guide rail 20 provided on the floor.
The top of the upright post 3 is provided with a lifting mechanism 30 and is positioned on the trolley and the walking device 2.
The cross arm 4 is movably connected with the lifting mechanism 30 through a sliding plate 31 and can move up and down along the upright post 3, and the effective vertical lifting stroke of the cross arm is 6000 mm.
The welding head 5 is provided with a welding gun 51 and a welding flux hopper 52, the welding head 5 is arranged at one end of the cross arm 4 through a head lifting arm 50, can vertically lift along with the cross arm 4 and horizontally move along the cross arm 4, and can rotate +/-45 degrees around the axis of the cross arm 4 and +/-90 degrees around the cross arm 4 and perpendicular to the horizontal axis; a machine head rotating mechanism and a cross-shaped carriage arranged on the machine head rotating mechanism are also arranged between the welding machine head 5 and the machine head lifting arm 50, and a welding gun 51 and a welding flux hopper 52 are arranged on the cross-shaped carriage.
An angle adjusting mechanism is arranged on a contact tip of the welding gun 51, and the angle adjusting mechanism and the machine head swing mechanism can be coordinated with each other to conveniently adjust the inclination angle of the welding gun 51 and the arrangement of four welding wires at any time according to the structural form of a welding line of a workpiece, namely under the conditions of a longitudinal welding line, a circumferential welding line and an angle welding line. If the welding seam is a narrow and deep welding seam, the arrangement of the four wires can be longitudinal arrangement; the arrangement of the four wires can be transversely arranged when the welding seam is wide; the arrangement of the four wires can be crossed when the welding seam between the narrow and wide parts is formed.
The wire feeding mechanism comprises four wire discs 60 which are arranged on a trolley in front of the upright post 3 and connected with the side wall of the upright post 3, a wire pushing device 61 which leads out a welding wire on each wire disc 60 and leads the welding wire into the inner cavities of the four wire guide pipes 7 respectively, and a wire drawing device 62 which is arranged on the welding head 5 and is used for double-feeding the welding wires in the wire guide pipes 7 into two welding gun contact nozzles. The speeds of the wire pushing device 61 and the wire drawing device 62 are synchronized.
The guide wire tube 7 is located between the welding gun and the wire reel 60.
The swing mechanism 8 is arranged on the trolley between the upright post 3 and the welding power supply 1 and is used for controlling the upright post 3 to rotate +/-360 degrees relative to the trolley.
The electric control cabinet 9 is fixed on the upright post 3.
The double-arc four-wire automatic submerged arc welding machine further comprises a remote automatic flux conveying and recovering device, which comprises a vacuum pump 11 arranged beside the welding power supply 1, a recovery barrel 12 arranged at the other end of the cross arm 4, a flux recovery pipe 13 connected between the recovery barrel 12 and the vacuum pump 11, and a flux conveying pipe (not shown) connected between the recovery barrel 12 and a flux hopper 52.
The double-arc four-wire automatic submerged arc welding machine further comprises a manned seat 16 arranged at one end of the cross arm 4 through a seat lifting arm 15, and the manned seat 16 can also be used as a horizontal swing angle.
The head lifting arm 50 and the seat lifting arm 15 are both hydraulic lifting mechanisms.
The invention relates to a manufacturing method of a double-arc four-wire automatic submerged arc welding machine, which comprises the following steps:
firstly, selecting and matching a welding power supply; secondly, calculating parameters such as rigidity, operation range, moment, power and the like of the trolley, the walking device, the upright post, the cross arm and the machine head lifting arm; then processing each part; then assembling is carried out; and finally, assembling, debugging and welding a test board on site to obtain the double-arc spacing and the arrangement angle of the four wires.
The manufacturing method of the double-arc four-wire automatic submerged arc welding machine is characterized in that during field assembly, a single arc and double arcs can be arranged, and adjustable control functions such as arc starting time and arc stopping time of front and rear arcs can be set.
The invention relates to a manufacturing method of a double-arc four-wire automatic submerged arc welding machine, which comprises the following steps:
firstly, selecting and matching a welding power supply 1; secondly, calculating parameters such as rigidity, operation range, moment, power and the like of the trolley, the walking device 2, the upright post 3, the cross arm 4 and the machine head lifting arm 50; then processing each part; then assembling is carried out; and finally, assembling, debugging and welding a test board on site to obtain the double-arc spacing and the arrangement angle of the four wires.
When the field assembly is carried out, a single fox and double arcs can be arranged, and adjustable control functions of arc starting time, arc stopping time and the like of the front arc and the rear arc can be arranged.
It will be appreciated by persons skilled in the art that the above embodiments are only intended to illustrate the present invention, and not to limit the present invention, and that the present invention may be further modified, and the changes and modifications of the above described embodiments may be within the scope of the appended claims, as long as they are within the true spirit of the present invention.
Claims (6)
1. A double-arc four-wire automatic submerged arc welding machine comprises a welding power supply, a stand column, a cross arm, a welding head, a wire guide pipe, a wire feeding mechanism, a slewing mechanism and an electric control cabinet, wherein the stand column is provided with a lifting mechanism at the top and is positioned on a trolley and a walking device, the cross arm is movably connected with the lifting mechanism and can move up and down along the stand column, the welding head is provided with a welding gun and a welding flux hopper, the wire guide pipe is positioned between the welding gun and a wire welding disc, the slewing mechanism is used for controlling the stand column to rotate relative to the trolley,
the welding head is arranged at one end of the cross arm through a head lifting arm, can vertically lift along the cross arm and horizontally move along the cross arm, and can rotate +/-45 degrees around the axis of the cross arm and +/-90 degrees around the horizontal axis of the cross arm in a vertical mode;
the two welding guns can rotate along with the rotation of the welding head;
the wire feeding mechanism comprises four wire discs which are arranged on a trolley in front of the upright post and connected with the side wall of the upright post, a wire pushing device which leads out a welding wire from each wire disc and leads the welding wire into the inner cavities of the four wire guide pipes respectively, and a wire drawing device which is arranged on a welding head and is used for feeding the welding wires in the wire guide pipes into two welding gun contact nozzles in a double-double mode;
an angle adjusting mechanism is arranged on the welding gun contact tube;
and a machine head rotating mechanism and a cross-shaped carriage arranged on the machine head rotating mechanism are also arranged between the welding machine head and the machine head lifting arm, and the welding gun and the welding flux hopper are arranged on the cross-shaped carriage.
2. The dual arc four wire automatic submerged arc welding machine of claim 1, wherein said welding power source is two inverter AC/DC1000 power sources, which are disposed behind the column and connected to the sidewall of the column, and said swing mechanism is disposed on the trolley between the column and the welding power source.
3. The double arc four wire automatic submerged arc welding machine of claim 2, further comprising a remote automatic flux delivery and recovery device, which comprises a vacuum pump arranged beside the welding power source, a recovery barrel arranged at the other end of the cross arm, a flux recovery pipe connected between the recovery barrel and the vacuum pump, and a flux delivery pipe connected between the recovery barrel and the flux hopper.
4. The double arc four wire automatic submerged arc welding machine of claim 1, further comprising a seat disposed at one end of the cross arm by a seat lifting arm.
5. The dual arc four wire automatic submerged arc welding machine of claim 4, wherein the head lifting arm and the seat lifting arm are both hydraulic lifting mechanisms.
6. The dual arc four wire automatic submerged arc welding machine of claim 1, wherein said trolley and said traveling means are linearly horizontally movable by means of guide rails provided on the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100406231A CN101306488B (en) | 2007-05-14 | 2007-05-14 | Double arc four wire automatic arc-submerging welder and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100406231A CN101306488B (en) | 2007-05-14 | 2007-05-14 | Double arc four wire automatic arc-submerging welder and manufacture method thereof |
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| Publication Number | Publication Date |
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| CN101306488A CN101306488A (en) | 2008-11-19 |
| CN101306488B true CN101306488B (en) | 2011-04-27 |
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| CN2007100406231A Active CN101306488B (en) | 2007-05-14 | 2007-05-14 | Double arc four wire automatic arc-submerging welder and manufacture method thereof |
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