CN116551126A - Pipeline all-position rotary arc welding device and control method thereof - Google Patents
Pipeline all-position rotary arc welding device and control method thereof Download PDFInfo
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- CN116551126A CN116551126A CN202310367024.XA CN202310367024A CN116551126A CN 116551126 A CN116551126 A CN 116551126A CN 202310367024 A CN202310367024 A CN 202310367024A CN 116551126 A CN116551126 A CN 116551126A
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- 238000003466 welding Methods 0.000 title claims abstract description 370
- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 8
- 239000010937 tungsten Substances 0.000 claims abstract description 8
- 230000006698 induction Effects 0.000 claims description 14
- 238000010891 electric arc Methods 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000008033 biological extinction Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 15
- 230000008901 benefit Effects 0.000 abstract description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052786 argon Inorganic materials 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
- B23K9/133—Means for feeding electrodes, e.g. drums, rolls, motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention relates to a pipeline all-position rotary arc welding device and a control method thereof, belonging to the field of argon tungsten-arc welding, and comprising a welding all-position track, a welding trolley, a TIG arc rotary welding gun and a wire feeder, wherein the welding all-position track is fixed on a workpiece in a surrounding manner, the welding trolley can move along the welding all-position track, the welding trolley is connected with the TIG arc rotary welding gun through a triaxial movement mechanism and is used for adjusting the position of the TIG arc rotary welding gun, a wire feeding pipe of the wire feeder is fixed on the TIG arc rotary welding gun through a bolt, the axis of the wire feeding pipe is on the same plane with the axis of a tungsten electrode of the TIG arc rotary welding gun, and the TIG arc rotary welding gun is connected with a welding machine. The welding gun provided by the invention realizes all-position welding of a welded pipeline and automatic swinging of a welding arc through the cooperation of the surrounding welding trolley and the triaxial movement mechanism, and has the advantages of high welding quality, stable welding process, small welding spatter and the like.
Description
Technical Field
The invention relates to a pipeline all-position rotary arc welding device and a control method thereof, which greatly improve the efficiency of pipeline all-position welding and the stability of electric arc in the welding process, and belong to the technical field of argon tungsten-arc welding.
Background
With the development of economy construction and society, oil gas pipe network construction is becoming more important, and pipeline welding is a key process of oil gas pipe network construction, and rotary arc welding can effectually reduce the heat input in the pipeline welding process, reduce the crystal grain of welding heat affected zone and thick, improve pipeline welding quality.
Under the protection of argon, the GTAW is suitable for welding stainless steel and non-ferrous metal sheets such as aluminum, magnesium, copper alloy and the like, the welded joint has good toughness, and the welded joint has high quality, but because the current carrying of a tungsten electrode is limited, compared with other welding methods, the GTAW cladding metal has low efficiency, and the labor amount of manual welding is large. When the all-position pipeline is welded, the welding pool is influenced by gravity, the appearance molding of the welding seam is poor due to the flowing of the welding pool, the residual height of the welding seam of the whole pipeline is inconsistent, the welding arc of the welding seam can be fluctuated, and the welding stability is poor.
Disclosure of Invention
Aiming at the defects of the prior art, the invention relates to a pipeline all-position rotary arc welding device and a control method thereof, and a TIG arc rotary welding gun is matched with a triaxial movement mechanism through a surrounding welding trolley to realize all-position welding of a welding pipeline and automatic swing of a welding arc. The method can effectively solve the problem of low welding efficiency of all positions of the pipeline and improve the stability of welding arc through closed-loop control in the welding process.
The invention adopts the following technical scheme:
the utility model provides a pipeline all-position rotating arc welding device, includes welding all-position track, welding trolley, TIG electric arc rotating welding gun and wire feeder, welding all-position track encircles and is fixed in on the pipeline welding work piece, and welding trolley can follow welding all-position orbital motion, the welding trolley passes through triaxial movement mechanism and connects TIG electric arc rotating welding gun for adjust TIG electric arc rotating welding gun's position, wire feeder's wire feeding pipe passes through the bolt fastening on TIG electric arc rotating welding gun, and wherein wire feeding pipe's axis and TIG electric arc rotating welding gun tungsten electrode's axis are on the coplanar, and TIG electric arc rotating welding gun is connected with the silicon controlled rectifier arc welding machine.
Preferably, the pipeline all-position rotary arc welding device is connected with a control cabinet, and a control panel on the control cabinet can be used for setting a welding interval and a welding speed.
Preferably, two sides of the welding all-position rail are respectively provided with a plurality of electric workpiece positioning bolts, each electric workpiece positioning bolt is driven by a positioning motor, and the electric workpiece positioning bolts synchronously stretch and retract and are used for compressing a pipeline welding workpiece to realize positioning and fixing, and the fixed welding all-position rail is coaxial with the pipeline welding workpiece;
preferably, the number of the electric workpiece positioning bolts welded on two sides of the all-position rail is 8.
Further preferably, 8 threaded holes with the diameter of phi 10mm can be respectively formed in two sides of the welding all-position track, the internal threaded holes can be matched with external threads of the electric workpiece positioning bolts, the positioning motor is synchronously operated, the electric workpiece positioning bolts are driven to rotate in the threaded holes, the circle centers of pipeline welding workpieces are conveniently calibrated, and the workpieces are conveniently clamped and fixed.
Preferably, two sides of the welding all-position track are respectively provided with a circumferential groove in the electric workpiece positioning bolt, and each groove is internally provided with a circumferential clamping groove;
the welding trolley is circular arc-shaped and concentric with the welding all-position track, 4 wheels are arranged on the welding trolley, the 4 wheels are located in the annular groove and walk in the groove, two pulley fixing bolts are further arranged on the welding trolley, and the pulley fixing bolts are clamped in the two clamping grooves and used for limiting the welding trolley and the welding all-position track.
Preferably, the pulley fixing bolt comprises a body, the upper part of the body is fixed on the welding trolley through a nut, the bottom of the body is fixedly connected with a linear connecting rod, a pulley is arranged on the linear connecting rod, and the pulley is clamped in a clamping groove of the welding all-position rail. Through the cooperation of wheel, recess, draw-in groove and pulley dead bolt, the welding dolly can be installed on the welding all-position track to steadily do circular motion round the welding all-position track.
Preferably, the diameter of the pipeline welding workpiece is between 10 and 120 mm.
Preferably, the triaxial movement mechanism is connected with the TIG arc rotary welding gun through a C-shaped mechanical arm;
the three-axis movement mechanism comprises a vertical rod and a horizontal rod, wherein the bottom of the vertical rod is fixed on the welding trolley, a vertical double-motor unit is arranged on the vertical rod, the vertical double-motor unit can move up and down along the vertical rod to realize Z-axis direction adjustment, the vertical double-motor unit is connected with the horizontal rod, a horizontal movement motor is arranged on the horizontal rod, the horizontal movement motor can move along the horizontal rod to realize X-axis direction adjustment, the horizontal movement motor is fixedly connected with a C-shaped mechanical arm, and a Y-axis is namely annular movement.
The horizontal movement motor is used for adjusting the X-axis direction of the TIG arc rotary welding gun, and the vertical double-motor set is used for controlling the Z-axis direction. The TIG arc rotating welding gun matched with the welding trolley can stably do circular motion on a welding all-position track, and the welding gun can controllably start, swing and quench arcs through a triaxial motion mechanism, so that the welding gun is applicable to different welding beads (backing welding, filling welding and cover welding).
The material of the triaxial movement mechanism is preferably aluminum alloy material, and the design has the advantages of reducing the bearing of the motor and the bearing of the welding all-position movement track clamping groove.
Preferably, the vertical double-motor unit and the horizontal movement motor are both provided with metal protection covers, and are detachably connected through bolts, so that the motor is convenient to replace and maintain. The Z-axis motion direction is driven by the vertical double-motor unit, and the design has the advantages that one layer of metal protection cover is added, so that the motor precision of the equipment is reduced due to the fact that the equipment motor is collided during carrying, the single motor can be reduced by the double-motor unit in the Z-axis direction, and the stability of the welding process is guaranteed.
Preferably, the vertical double motor unit and the horizontal movement motor are motors with 86 shaft diameters of 57 mm.
Preferably, the tungsten electrode of the TIG arc rotary welding gun adopts a sharpening mode with a tip platform, the diameter is 4mm, the tip angle is 45 degrees, and the diameter of the tip platform is 0.8mm.
Preferably, on the welding all-position track, 40 magnetic induction positioning sheets with equal angles of 9 degrees are arranged between two annular grooves, a magnetic induction receiving device is arranged at the bottom of the welding trolley, and motor encoders are arranged on 4 wheels of the welding trolley.
In the invention, the magnetic induction positioning sheets divide the circular arc on the moving track into 40 equal parts, each interval is 9 degrees, each magnetic induction sheet has corresponding angle information, the corresponding angle and the welding interval are identified through the magnetic induction receiving device of the welding trolley base, in order to improve the accuracy of movement in the welding process, the speed of welding movement is read through the motor encoders of the four wheels of the welding trolley in each cell and converted into the current movement angle, so that the monitoring of the welding position in the welding process is more accurate, the welding process of the relative interval is convenient and formulated, and the welding quality of all-position pipelines is improved.
The control method of the pipeline all-position rotary arc welding device comprises the following steps:
s1: starting equipment, clamping a pipeline welding workpiece, and synchronously positioning and clamping a plurality of electric workpiece positioning bolts to realize coaxial fixation of a welding all-position track and the pipeline welding workpiece;
s2: setting welding parameters, opening a control panel on a control cabinet, setting a welding interval (up to 40 movement intervals) and welding speed, setting parameters of each welding interval, including welding current, wire filling speed, swinging range and swinging speed, adjusting the position of a welding gun, adjusting the height of the welding gun through a vertical lifting motor group, and adjusting the horizontal position of the welding gun through a horizontal movement motor to ensure that the position of the welding gun is positioned at the center of a welding seam to be welded;
s3: initializing a welding trolley, and returning the welding trolley to a welding origin S;
s4: starting an arc of a welding machine to weld, opening a protective gas (Ar) by an electromagnetic switch of the welding machine, waiting for stable flow of a flowmeter, starting the welding machine at high frequency, stopping a program automatically if the arc is started, checking manually and adjusting parameters in time, waiting for welding, enabling a welding trolley to move at a constant speed along a welding all-position track, welding each welding section sequentially according to the parameters of each welding section, and periodically swinging a welding gun back and forth by a horizontal movement motor with the center of the welding seam;
s5: arc extinction, the welding trolley finishes welding a preset welding zone, the welding trolley stops moving 2 degrees in the opposite direction, the arc pit is filled, the power supply is cut off, the welding gun is lifted by 30mm through a vertical lifting motor of a Z axis, air supply is stopped, and the welding is finished;
s6, if welding is needed to be continuously performed on the pipeline welding workpiece, the steps S2, S3, S4 and S5 are performed again, if the pipeline welding workpiece is replaced, the electric workpiece positioning bolts are started to be loosened synchronously, the pipeline welding workpiece is replaced, and the steps S1 to S5 are performed again;
s7, stopping the machine, and closing the power supply of the equipment.
The invention is not exhaustive and can be seen in the prior art.
The beneficial effects of the invention are as follows:
1. the TIG arc rotating welding gun provided by the invention is matched with the triaxial moving mechanism through the encircling welding trolley, so that the full-position welding of a welding pipeline and the automatic swing of a welding arc are realized, and the TIG arc rotating welding gun has the advantages of high welding quality, stable welding process, small welding spatter and the like.
2. After the welding parameters are set, the welding seam can be welded on the pipeline until the welding cover surface is finished, the whole welding process is automatically carried out, the degree of automation is high, the manual work intensity is lightened, and the efficiency of welding the pipeline is improved while the quality of a welding joint is high.
3. The welding device has the advantages of simple welding structure, convenient maintenance and repair, convenient use and good economic value.
4. The motor of the welding device is provided with the metal protective cover, wherein the motor is convenient to replace and maintain through detachable bolt connection.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application.
FIG. 1 is a three-dimensional schematic view of a pipe full position rotary arc welding apparatus of the present invention;
FIG. 2 is a schematic diagram of a control cabinet according to the present invention;
FIG. 3 is a front view of the pipe full position rotary arc welding apparatus of the present invention;
FIG. 4 is a schematic diagram of the connection of the full position rail of the welder to the pipe welded workpiece;
FIG. 5 is a front view of the welder full position track;
FIG. 6 is a cross-sectional view taken along section A-A of FIG. 5;
FIG. 7 is a schematic diagram of the connection between the welding carriage and the triaxial movement mechanism;
FIG. 8 is a second schematic diagram of the connection between the welding carriage and the triaxial movement mechanism;
FIG. 9 is a schematic view of a pulley securing latch;
FIG. 10 is a flow chart of a method of controlling a pipe full position rotary arc welding apparatus;
FIG. 11 is a schematic view of a partition of a welding zone in an embodiment;
wherein: 1. welding trolley, 2, welding all-position track, 3, pipeline welding work piece, 4, switch board, 5, electric work piece locating bolt, 6, locating motor, 7, magnetic induction locating piece, 8, draw-in groove, 9, recess, 10, wheel, 11, pulley fixing bolt, 12, vertical double motor group, 13, horizontal motion motor, 14, TIG arc rotary welding gun, 15, wire feeder, 16, nut, 17, pulley, 18, straight-line connecting rod, 19, magnetic induction receiving device, 20, triaxial motion mechanism, 21, C type arm.
The specific embodiment is as follows:
in order to better understand the technical solutions in the present specification, the following description will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the implementation of the present specification, but not limited thereto, and the present invention is not fully described and is according to the conventional technology in the art.
Example 1
The utility model provides a pipeline all-position rotating arc welding device, as shown in fig. 1-9, including welding all-position track 2, welding trolley 1, TIG arc rotating welding gun 14 and wire feeder 15, welding all-position track 2 encircles to be fixed in on pipeline welding work piece 3, welding trolley 1 can follow welding all-position track 2 motion, welding trolley 1 passes through triaxial motion mechanism 20 and connects TIG arc rotating welding gun 14, be used for adjusting TIG arc rotating welding gun 14's position, wire feeder 15's wire feeding pipe passes through the bolt fastening on TIG arc rotating welding gun 14, wherein wire feeder's axis and TIG arc rotating welding gun tungsten electrode's axis are on the coplanar, TIG arc rotating welding gun is connected with the silicon controlled rectifier arc welding machine.
The pipeline all-position rotary arc welding device is connected with a control cabinet 4, and a control panel on the control cabinet can be used for setting a welding interval and a welding speed.
Example 2
The structure of the all-position rotary arc welding device for the pipeline is as described in the embodiment 1, except that a plurality of electric workpiece positioning bolts 5 are respectively arranged on two sides of a welding all-position track 2, each electric workpiece positioning bolt 5 is driven by a positioning motor 6, and the plurality of electric positioning bolts 5 synchronously stretch and retract and are used for pressing a pipeline welding workpiece 3 to realize positioning and fixing, and the fixed welding all-position track is coaxial with the pipeline welding workpiece;
preferably, the number of the electric workpiece positioning bolts welded on two sides of the all-position rail is 8.
Further preferably, 8 threaded holes with the diameter of phi 10mm can be respectively formed in two sides of the welding all-position track, the internal threaded holes can be matched with external threads of the electric workpiece positioning bolts, the positioning motor is synchronously operated, the electric workpiece positioning bolts are driven to rotate in the threaded holes, the circle centers of pipeline welding workpieces are conveniently calibrated, and the workpieces are conveniently clamped and fixed.
Example 3
The structure of the all-position rotary arc welding device for the pipeline is as in the embodiment 2, except that two sides of the all-position welding track 2 are respectively provided with a circumferential groove 9 in the electric workpiece positioning bolt, and each groove 9 is internally provided with a circumferential clamping groove 8;
the welding trolley 1 is arc-shaped and concentric with the welding all-position track 2, 4 wheels 10 are arranged on the welding trolley 1, the 4 wheels 10 are located in the annular groove 9 and walk in the groove 9, two pulley fixing bolts 11 are further arranged on the welding trolley, and the pulley fixing bolts 11 are clamped in the two clamping grooves 9 and used for limiting the welding trolley and the welding all-position track.
As shown in fig. 9, the pulley fixing bolt 11 comprises a body, the upper part of the body is fixed on the welding trolley 1 through a nut 16, the bottom of the body is fixedly connected with a linear connecting rod 18, a pulley 17 is arranged on the linear connecting rod 18, and the pulley 17 is clamped in a clamping groove 8 of a welding all-position track. Through the cooperation of wheel, recess, draw-in groove and pulley dead bolt, the welding dolly can be installed on the welding all-position track to steadily do circular motion round the welding all-position track.
Example 4
An all-position rotary arc welding apparatus for a pipe is constructed as described in example 3, except that the diameter of the pipe welding workpiece 3 is between 10 and 120 mm.
Example 5
A pipe full position rotary arc welding apparatus constructed as described in example 4, except that the triaxial movement mechanism 20 is connected to the TIG arc rotary welding gun 14 through a C-type mechanical arm 21;
the triaxial motion mechanism 20 includes vertical pole and horizon bar, and vertical pole bottom is fixed in on the welding tractor, is provided with perpendicular double motor group 12 on the vertical pole, and perpendicular double motor group 12 can be along vertical pole up-and-down motion realization Z axle direction adjustment, and perpendicular double motor group 12 is connected with the horizon bar, is provided with horizontal motion motor 13 on the horizon bar, and horizontal motion motor 13 can be along the adjustment of horizon bar motion realization X axle direction, horizontal motion motor and C type arm fixed connection, the motion of Y axle i.e. hoop.
The horizontal movement motor is used for adjusting the X-axis direction of the TIG arc rotary welding gun, and the vertical double-motor set is used for controlling the Z-axis direction. The TIG arc rotating welding gun matched with the welding trolley can stably do circular motion on a welding all-position track, and the welding gun can controllably start, swing and quench arcs through a triaxial motion mechanism, so that the welding gun is applicable to different welding beads (backing welding, filling welding and cover welding).
The material of the triaxial movement mechanism 20 is preferably an aluminium alloy material, and this design has the advantage of reducing the load of the motor and the load of the welded all-position movement track clamping groove.
Example 6
The all-position rotary arc welding device for the pipeline is structurally as described in the embodiment 5, except that the vertical double-motor group 12 and the horizontal movement motor 13 are both provided with metal protection covers, and the vertical double-motor group and the horizontal movement motor are detachably connected through bolts, so that the motor is convenient to replace and maintain. The Z-axis motion direction is driven by the vertical double-motor unit, and the design has the advantages that one layer of metal protection cover is added, so that the motor precision of the equipment is reduced due to the fact that the equipment motor is collided during carrying, the single motor can be reduced by the double-motor unit in the Z-axis direction, and the stability of the welding process is guaranteed.
The vertical double motor group 12 and the horizontal movement motor 13 are each preferably motors with 86 shaft diameters of 57 mm.
Example 7
The full position rotary arc welding device for pipelines is structured as in the embodiment 6, except that the tungsten electrode of the TIG arc rotary welding gun 14 adopts a sharpening mode with a tip platform, the diameter is 4mm, the tip angle is 45 degrees, and the diameter of the tip platform is 0.8mm.
Example 8
The full-position rotary arc welding device for the pipeline is structurally characterized in that a full-position welding track 2 is provided with 40 magnetic induction positioning sheets 7 with equal angles of 9 degrees between two annular grooves, a magnetic induction receiving device 19 is arranged at the bottom of a welding trolley, and motor encoders are arranged on 4 wheels of the welding trolley.
In the invention, the magnetic induction positioning sheet 7 divides the arc on the moving track into 40 equal parts, each interval is 9 degrees, each magnetic induction sheet has corresponding angle information, the corresponding angle and the welding interval are identified through the magnetic induction receiving device of the welding trolley base, in order to improve the accuracy of movement in the welding process, the speed of welding movement is read through the motor encoders of the four wheels of the welding trolley in each cell and converted into the current movement angle, so that the monitoring of the welding position in the welding process is more accurate, the welding process of the corresponding interval is convenient and formulated, and the quality of all-position pipeline welding is improved.
Example 9
A control method of a pipeline all-position rotary arc welding device comprises the following steps:
s1: starting equipment, clamping a pipeline welding workpiece, and synchronously positioning and clamping a plurality of electric workpiece positioning bolts to realize coaxial fixation of a welding all-position track and the pipeline welding workpiece;
s2: setting welding parameters, opening a control panel on a control cabinet, setting a welding interval and a welding speed (0-30 mm/s), setting 4 welding intervals in the embodiment, setting parameters of each welding interval, including welding current (0-500A), wire filling speed (0-30 mm/s), swinging range (0-10 mm) and swinging speed (0-30 mm/s), adjusting the position of a welding gun, adjusting the height of the welding gun through a vertical lifting motor group, and adjusting the horizontal position of the welding gun through a horizontal movement motor to ensure that the position of the welding gun is positioned at the center of a welding seam to be welded;
s3: initializing a welding trolley, and returning the welding trolley to a welding origin S;
s4: starting an arc of a welding machine to weld, opening a protective gas (Ar) by an electromagnetic switch of the welding machine, waiting for stable flow of a flowmeter, starting the welding machine at high frequency, stopping a program automatically if the arc is started, checking manually and adjusting parameters in time, waiting for welding, enabling a welding trolley to move at a constant speed along a welding all-position track, welding each welding section sequentially according to the parameters of each welding section, and periodically swinging a welding gun back and forth by a horizontal movement motor with the center of the welding seam;
s5: arc extinction, the welding trolley finishes welding a preset welding zone, the welding trolley stops moving 2 degrees in the opposite direction, the arc pit is filled, the power supply is cut off, the welding gun is lifted by 30mm through a vertical lifting motor of a Z axis, air supply is stopped, and the welding is finished;
s6, if welding is needed to be continuously performed on the pipeline welding workpiece, the steps S2, S3, S4 and S5 are performed again, if the pipeline welding workpiece is replaced, the electric workpiece positioning bolts are started to be loosened synchronously, the pipeline welding workpiece is replaced, and the steps S1 to S5 are performed again;
s7, stopping the machine, and closing the power supply of the equipment.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.
Claims (10)
1. The utility model provides a pipeline all-position rotating arc welding device, its characterized in that, including welding all-position track, welding trolley, TIG electric arc rotating welding gun and wire feeder, welding all-position track encircles and is fixed in on the pipeline welding work piece, and welding trolley can follow welding all-position orbital motion, the welding trolley passes through triaxial movement mechanism and connects TIG electric arc rotating welding gun for adjust TIG electric arc rotating welding gun's position, wire feeder's wire feeding pipe passes through the bolt fastening on TIG electric arc rotating welding gun, and wherein wire feeding pipe's axis and TIG electric arc rotating welding gun tungsten electrode's axis are on the coplanar, and TIG electric arc rotating welding gun is connected with the welding machine.
2. The all-position rotary arc welding device for pipelines according to claim 1, wherein a plurality of electric workpiece positioning bolts are respectively arranged on two sides of the all-position welding track, each electric workpiece positioning bolt is driven by a positioning motor, the electric positioning bolts synchronously stretch and retract and are used for pressing the pipeline welding workpieces to realize positioning and fixing, and the all-position welding track after fixing is coaxial with the pipeline welding workpieces;
preferably, the number of the electric workpiece positioning bolts welded on two sides of the all-position rail is 8.
3. The all-position rotary arc welding device for pipelines according to claim 1, wherein two sides of the all-position welding track are respectively provided with a circumferential groove in the electric workpiece positioning bolt, and each groove is internally provided with a circumferential clamping groove;
the welding trolley is circular arc-shaped and concentric with the welding all-position track, 4 wheels are arranged on the welding trolley, the 4 wheels are located in the annular groove and walk in the groove, two pulley fixing bolts are further arranged on the welding trolley, and the pulley fixing bolts are clamped in the two clamping grooves and used for limiting the welding trolley and the welding all-position track.
4. The apparatus of claim 3, wherein the pulley fixing bolt comprises a body, the upper portion of the body is fixed on the welding carriage through a nut, the bottom of the body is fixedly connected with a linear connecting rod, the linear connecting rod is provided with a pulley, and the pulley is clamped in a clamping groove of the welding all-position rail.
5. The apparatus of claim 4, wherein the diameter of the pipe welding workpiece is between 10 and 120 mm.
6. The pipe full position rotary arc welding apparatus of claim 5 wherein the triaxial movement mechanism is connected to a TIG arc rotary welding gun by a C-type mechanical arm;
the three-axis movement mechanism comprises a vertical rod and a horizontal rod, wherein the bottom of the vertical rod is fixed on the welding trolley, a vertical double-motor set is arranged on the vertical rod, the vertical double-motor set can move up and down along the vertical rod to realize Z-axis direction adjustment, the vertical double-motor set is connected with the horizontal rod, a horizontal movement motor is arranged on the horizontal rod, the horizontal movement motor can move along the horizontal rod to realize X-axis direction adjustment, and the horizontal movement motor is fixedly connected with the C-shaped mechanical arm.
7. The apparatus of claim 6, wherein the vertical double motor unit and the horizontal moving motor are each provided with a metal shield detachably connected by bolts.
8. The apparatus of claim 1, wherein the tungsten electrode of the TIG arc rotary welding gun is sharpened with a tip platform having a diameter of 4mm and a tip angle of 45 ° and a tip platform diameter of 0.8mm.
9. The all-position rotary arc welding device for pipelines according to claim 7, wherein 40 magnetic induction positioning pieces with the same angle as 9 degrees are arranged between two annular grooves on the all-position welding track, a magnetic induction receiving device is arranged at the bottom of the welding trolley, and motor encoders are arranged on 4 wheels of the welding trolley.
10. A method of controlling a pipe full position rotary arc welding apparatus according to claim 9, comprising the steps of:
s1: starting equipment, clamping a pipeline welding workpiece, and synchronously positioning and clamping a plurality of electric workpiece positioning bolts to realize coaxial fixation of a welding all-position track and the pipeline welding workpiece;
s2: setting welding parameters, opening a control panel on a control cabinet, setting a welding interval and a welding speed, setting parameters of each welding interval, including welding current, wire filling speed, swinging range and swinging speed, adjusting the position of a welding gun, adjusting the height of the welding gun through a vertical lifting motor group, and adjusting the horizontal position of the welding gun through a horizontal movement motor to ensure that the position of the welding gun is positioned at the center of a welding seam to be welded;
s3: initializing a welding trolley, and returning the welding trolley to a welding origin S;
s4: the welding machine starts arc welding, an electromagnetic switch of the welding machine opens protective gas, the flow of a flowmeter is waited to be stable, the welding machine starts arc at high frequency, if the arc starting fails, the program automatically stops, the inspection is performed manually, parameters are adjusted in time, the welding trolley waits for welding, the welding trolley moves at a constant speed along a welding all-position track, the welding is performed on each welding section in sequence according to the parameters of each welding section, and a welding gun swings periodically back and forth from a horizontal movement motor to the center of the welding seam;
s5: arc extinction, the welding trolley finishes welding a preset welding zone, the welding trolley stops moving 2 degrees in the opposite direction, the arc pit is filled, the power supply is cut off, the welding gun is lifted by 30mm through a vertical lifting motor of a Z axis, air supply is stopped, and the welding is finished;
s6, if welding is needed to be continuously performed on the pipeline welding workpiece, the steps S2, S3, S4 and S5 are performed again, if the pipeline welding workpiece is replaced, the electric workpiece positioning bolts are started to be loosened synchronously, the pipeline welding workpiece is replaced, and the steps S1 to S5 are performed again;
s7, stopping the machine, and closing the power supply of the equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310367024.XA CN116551126A (en) | 2023-04-06 | 2023-04-06 | Pipeline all-position rotary arc welding device and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310367024.XA CN116551126A (en) | 2023-04-06 | 2023-04-06 | Pipeline all-position rotary arc welding device and control method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117260072A (en) * | 2023-09-14 | 2023-12-22 | 南京麦驰钛业有限公司 | Full-position automatic welding mechanism for non-ferrous metal heat exchanger tube head |
| CN117428292A (en) * | 2023-11-28 | 2024-01-23 | 北京石油化工学院 | Automatic narrow groove pipeline welding device and welding method based on rotary arc |
| CN117260072B (en) * | 2023-09-14 | 2024-04-30 | 南京麦驰钛业有限公司 | Full-position automatic welding mechanism for non-ferrous metal heat exchanger tube head |
-
2023
- 2023-04-06 CN CN202310367024.XA patent/CN116551126A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117260072A (en) * | 2023-09-14 | 2023-12-22 | 南京麦驰钛业有限公司 | Full-position automatic welding mechanism for non-ferrous metal heat exchanger tube head |
| CN117260072B (en) * | 2023-09-14 | 2024-04-30 | 南京麦驰钛业有限公司 | Full-position automatic welding mechanism for non-ferrous metal heat exchanger tube head |
| CN117428292A (en) * | 2023-11-28 | 2024-01-23 | 北京石油化工学院 | Automatic narrow groove pipeline welding device and welding method based on rotary arc |
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