CN108372343A - Arc-welding apparatus, arc-welding method and electric arc welding magnetic controller - Google Patents
Arc-welding apparatus, arc-welding method and electric arc welding magnetic controller Download PDFInfo
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- CN108372343A CN108372343A CN201711384110.2A CN201711384110A CN108372343A CN 108372343 A CN108372343 A CN 108372343A CN 201711384110 A CN201711384110 A CN 201711384110A CN 108372343 A CN108372343 A CN 108372343A
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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
- B23K9/02—Seam welding; Backing means; Inserts
-
- 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
- B23K9/08—Arrangements or circuits for magnetic control of the arc
-
- 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
- B23K9/124—Circuits or methods for feeding welding wire
-
- 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
- B23K9/1675—Arc welding or cutting making use of shielding gas and of a non-consumable electrode making use of several electrodes
-
- 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
- B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
- B23K9/1735—Arc welding or cutting making use of shielding gas and of a consumable electrode making use of several electrodes
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding Control (AREA)
- Arc Welding In General (AREA)
Abstract
The present invention provides arc-welding apparatus, arc-welding method and electric arc welding magnetic controller, is not influenced by execution conditions such as welding posture, interpolar distances, inhibits arc interference and magnetic blow-out, thus, it is possible to realize the welding of high quality with high efficiency.Arc-welding apparatus has more than two multiple electrodes that the one side or both sides by non-consumable electrode or consumption electrode is constituted.Arc-welding apparatus has：A pair of of magnetic coil (65,67), what they were arranged in multiple electrodes is at least configured to two armpit sides of the electrode (41) near the grounding points of workpiece (19)；Coil magnetization portion (61) carries out excitation to a pair of of magnetic coil (65,67) and generates magnetic flux；And control unit, so that the external magnetic around electric arc is changed according to the relative position of electrode (41) and a pair of of magnetic coil (65,67) and come the magnetic flux of self-electrode (41) and magnetic coil (65,67).
Description
Technical field
The present invention relates to arc-welding apparatus, arc-welding method and electric arc welding magnetic controllers.
Background technology
About welding (the Gas Metal Arc Welding for having used consumption electrode：GMAW) or on-consumable has been used
Welding (the Tungsten Inert Gas of electrode：The electric arcs welding such as TIG), it is known to realize efficiency by using multiple electrodes
The technology of raising.But the welding based on multiple electrodes can cause arc interference in short-term when the mutual interelectrode distance of electrode.Separately
On the one hand, magnetic blow-out is easy tod produce when interelectrode distance is long.Therefore, in the welding based on multiple electrodes, there are reason electric arcs
Lack of fusion, weld appearance caused by unstable are bad etc. and welding quality is caused to become unstable problem.In addition, these are electric
Arc is unstable also to be influenced by welding posture, such as there is a problem of the sagging of aggravation weld seam into, transverse weld standing.
In order to solve such disadvantage, such as it has been known that there is the technologies of patent document 1,2.In patent document 1 based on double electricity
In the arc-welding method of the non-consumable electrode of pole, using two opposite non-consumable electrodes as cathode, from two on-consumable electricity
Pole alternately generates electric arc and forms a molten bath (hereinafter, being recorded as single molten bath), feeds added material one to the molten bath on one side
While being welded.It describes in patent document 1 in the arc-welding method, Dan Rong is formed using two non-consumable electrodes
The electric arc in pond, two electrodes does not also interfere, and therefore, molten bath is stablized in broad range.It can be with two electrodes in addition, describing
Between interval correspondingly adjust the width of weld width and molten bath, therefore, it is possible to eliminate be laminated the when of welding easy to produce it is molten
It closes bad.
In addition, in the multi-electrode welding method of patent document 2, in lateral multi-electrode welding, relative to formation slope
Lateral groove in the wall of mouth, being formed in base material, configures the multiple electrodes of torch body in the width direction of the groove.
That is, the method for patent document 2 is the multi-electrode welding for generating electric arc between base material and multiple electrodes to be welded
Method, when the wall of the side in the wall for forming groove is located at the wall position on the lower than another party, to the appearance of multiple electrodes
The wall that gesture is controlled such that electric arc towards downside deflects.Describe the downside for promoting groove in patent document 2 as a result,
Melting avoids downside from becoming fusing deficiency, prevents overlap portion, and also inhibit the molten metal of upside sagging.
Citation
Patent document
Patent document 1：Japanese Unexamined Patent Publication 5-131273 bulletins
Patent document 2；Japanese Unexamined Patent Publication 2002-1537 bulletins
Invention content
The subject that the invention solves
But patent document 1 assumes the welding in single molten bath.Electric arc is reciprocally generated using welding current as pulse current
Method can only obtain the effect for preventing the caused arc interference in the case where interelectrode distance is short.That is, for keeping input hot
The purpose of dispersion is measured, as shown in figure 12, in the case where increasing the interpolar distance of electrode 501 and electrode 503 and form double molten baths,
It can not be from the influence of magnetic blow-out.Using same direction electric current (such as 150A), produced in electrode 501 and electrode 503
The magnetic line of force B1, B2 of the raw same direction.Especially, the grounding points in the ground wire 507 by workpiece 505 are limited and are incited somebody to action
In the case that grounding points are provided only at one (the position P in figure), the conjunction flowed between electrode 503 and ground wire 507
Meter electric current is more than the total electric current (I1 ＜ I2) flowed between electrode 501 and electrode 503.Therefore, it is close with ground wire 507
The electrode 503 of the position P of the grounding points of connection generates the magnetic field bigger than other positions, and magnetic blow-out (Mb1 ＜ Mb2) becomes aobvious
It writes.In addition, in patent document 1 for transverse direction, stand to etc. welding posture do not make any record.
In patent document 2, inhibit the overlap, the undercut that are easy tod produce under lateral welding posture in multiple electrodes,
But it is assumed to the short single molten bath of interelectrode distance, any consideration is not made for double molten baths.In addition, for arc interference, magnetic blow-out
Project do not make yet special consideration should be given to.Even if also, assume combination patent document 1 and patent document 2, can not also solve double molten baths with
On welding in become project magnetic blow-out.
The present invention is in view of above-mentioned condition and completes that its purpose is to provide not by welding posture, interelectrode distance etc.
The influence of execution conditions is hinged with by inhibition arc interference and the arc welding for the welding that can efficiently realize high quality by magnetic blow-out
It sets, arc-welding method and electric arc welding magnetic controller.
Solution for solving the problem
The scheme of the present invention is capable of providing a kind of arc-welding apparatus, by a side of non-consumable electrode or consumption electrode
Or more than two multiple electrodes that both sides are constituted are configured along welding direction, are applied between the multiple electrode and workpiece
Welding current and generate electric arc, wherein
The arc-welding apparatus has：A pair of of magnetic coil, what they were arranged in the multiple electrode is at least configured to
Near the grounding points of the workpiece electrode, the two armpit sides that clip the electrode；Coil magnetization portion, described in a pair
Magnetic coil carries out excitation and generates magnetic flux；And control unit, according to the relative position of the electrode and a pair of magnetic coil,
And magnetic flux from the electrode and a pair of magnetic coil and so that the external magnetic field around the electric arc is changed.
In addition, the scheme of the present invention is capable of providing a kind of arc-welding method, by non-consumable electrode or consumption electrode
More than two multiple electrodes for constituting of one side or both sides configured along welding direction, to the multiple electrode and workpiece it
Between apply welding current and generate electric arc, wherein be at least configured near the work to what is be arranged in the multiple electrode
The electrode of the grounding points of part, the two armpit sides that clip the electrode a pair of of magnetic coil carries out excitation and generates magnetic flux, according to
The relative position of the electrode and a pair of magnetic coil and the magnetic flux from the magnetic coil and make around the electric arc
External magnetic field changes.
In addition, the scheme of the present invention is capable of providing a kind of electric arc welding magnetic controller, control is by on-consumable electricity
The directive property of electric arc caused by the electrode that pole or consumption electrode are constituted, wherein the electric arc welding has with magnetic controller
It is standby：Magnetic coil is respectively provided with made of coiled electrical conductor a pair of of winding section in each front end of U-shaped iron core；Coil moving machine
Structure configures the magnetic coil to clip the electrode between a pair of winding section, and the magnetic coil is supported
For that can be moved along welding direction；Coil magnetization portion carries out excitation to the magnetic coil and generates magnetic flux；And control
Portion, according to the electrode with the relative position of a pair of winding section and from the electrode and a pair of magnetic coil
Magnetic flux and so that the external magnetic field around the electric arc is changed.
Invention effect
Arc-welding apparatus and arc-welding method according to the present invention, can not be by welding posture, interpolar distance etc.
The influence of execution conditions inhibits arc interference, magnetic blow-out, and the welding of high quality is realized with high efficiency.
In addition, electric arc welding magnetic controller according to the present invention, it can not be by constructions such as welding posture, interpolar distances
The influence of condition generates the external magnetic field that can inhibit arc interference and magnetic blow-out.
Description of the drawings
Fig. 1 is the outside drawing of the arc-welding apparatus of first structure example.
Fig. 2 is the major part stereogram of arc-welding apparatus shown in FIG. 1.
Fig. 3 is the partial enlarged view of arc-welding apparatus shown in Fig. 2.
Fig. 4 is the schematical vertical view of first coil unit, the second coil unit and the first welding torch, the second welding torch.
Fig. 5 is the schematical definition graph of the position relationship of the electrode and coil unit that show welding torch.
Fig. 6 is the control block diagram of arc welding system.
Fig. 7 be show to arcing towards welding direction upstream side electromagnetic force in the case of electrode and magnetic coil
Position and current direction action specification figure.
Fig. 8 be show to arcing towards welding direction downstream side electromagnetic force in the case of electrode and magnetic coil
Position and current direction action specification figure.
Fig. 9 be show to arcing towards a side orthogonal with welding direction electromagnetic force in the case of electrode
With the position of magnetic coil and the action specification figure of current direction.
Figure 10 be show to arcing towards another side orthogonal with welding direction electromagnetic force in the case of
The action specification figure of the position and current direction of electrode and magnetic coil.
Figure 11 is the major part composition figure of the arc-welding apparatus of the second configuration example.
Figure 12 is the definition graph for the producing cause for showing the magnetic blow-out in the previous arc-welding method based on double molten baths.
Reference sign：
19 workpiece
25 welding wire feeding heads
27 gas suction units
39 first welding torches
41 electrodes
43 second welding torches
47,48 twin shaft sliding block
57 first coil units
59 second coil units
61 coil magnetization portions
65 magnetic coils
67 magnetic coils
68 winding sections
69 iron cores
71,72 coil mobile mechanism
73 control units
100,300 arc-welding apparatus
200 arc welding systems
Specific implementation mode
Hereinafter, with reference to attached drawing, detailed description of embodiments of the present invention.It should be noted that the present invention and unlimited
Due to embodiments described below.
As long as the arc-welding apparatus of the present invention carries out electric arc welded structure, welding manner is just not particularly limited.Example
Such as, the gas shields non-consumable electrode formula arc-welding process such as TIG weld, MIG welding, carbon dioxide gas electricity can be also suitable for
The gas shields consumable electrode type arc-welding process such as arc welding.
Herein, as arc-welding apparatus, welded while being moved towards upside by standing to welding
TIG weld device for illustrate, but not limited to this, can be applied to arbitrarily weld posture, can also answer
For the welding towards lateral, lower direction.
[first structure example]
Fig. 1 is the outside drawing of the arc-welding apparatus of first structure example.It should be noted that in the present specification, Z axis
Direction is welding direction, and the direction of Y-axis is the normal direction of welding surface, and the direction of X-axis is and welding direction and welding surface method
The orthogonal direction of line, all directions are indicated by the direction of the arrow of Fig. 1.
Arc-welding apparatus 100 is the main device of aftermentioned arc welding system 200 (with reference to Fig. 6).Workpiece 13 has
There is groove part 15, in the nearby side of workpiece 13 configured with track 11 and the balladeur train 17 that can be moved along track 11.In balladeur train
17, equipped with arc-welding apparatus 100, carry out the welding processing of groove part 15.The arc-welding apparatus 100 of this structure is formed as
It can be stood from vertical direction to welded structure underneath towards top along track 11.In addition to this, it is welded in the electric arc
Aftermentioned various power supplys, gas supply part, cooling water supply portion etc. are connected on device 100.
Fig. 2 is the major part stereogram of arc-welding apparatus 100 shown in FIG. 1.It should be noted that Fig. 2 is by Fig. 1 institutes
The arc-welding apparatus 100 shown is shown in a manner of becoming lower section by track 11 in the state of horizontal arrangement.
There is the balladeur train 17 of arc-welding apparatus 100 pedestal 21 parallelly installed with track 11 and pedestal movement to use
Motor 29.On pedestal 21 first coil unit 57, the first welding torch are provided with from welding direction upstream side (left side of Fig. 2)
Unit 35, the second welding torch unit 37, the second coil unit 59.First welding torch unit 35 and the second welding torch unit 37 have energy respectively
Enough sliding parts (not shown) moved on pedestal 21.In addition, on pedestal 21 be equipped with supply filler wire wire spool 23 with
And welding wire feeding head 25, gas suction unit 27, motor 29, operation portion 31 etc., the substrate 21 are configured to through motor 29
It drives and is moved along track 11.
Fig. 3 is the partial enlarged view of arc-welding apparatus shown in Fig. 2.
First welding torch unit 35 has twin shaft sliding block 47 and is installed on the first welding torch 39 of twin shaft sliding block 47.First
Welding torch 39 is built-in with the electrode of electric arc welding (not shown).Second welding torch unit 37 similarly have twin shaft sliding block 48 and
It is installed on the second welding torch 43 of twin shaft sliding block 48.It is also built-in with the electrode of electric arc welding (not shown) in the second welding torch 43.
First welding torch 39 and the second welding torch 43 can separately be moved by twin shaft sliding block 47,48.Twin shaft is slided
Block 47,48 is respectively provided with can make the first welding torch 39, the second welding torch 43 along the width direction i.e. X-direction of the groove of workpiece 19
Sliding, i.e. oscillation slide laterally portion 51 and thickness direction i.e. Y direction longitudinal the sliding of making that welding torch slides along workpiece 19
Dynamic portion 53.
Sliding laterally portion 51 and longitudinal sliding motion portion 53 has the power transfer mechanism for the power for transmitting motor (not shown)
Deng making the electrode of each welding torch automatically be slided respectively along X-direction, Y direction.It is each alternatively, it is also possible to make in welding midway
Welding torch carries out wobbling action.
First coil unit 57 has a pair of of magnetic coil 65,67 in a manner of clipping the first welding torch 39 in the X-axis direction.Magnetic
Coil 65,67 has the iron core 69 as magnetic core and is wound with the winding section 68 of conducting wire, generates the external magnetic for making arc deflection
.The shape of iron core 69 is not particularly limited, such as can be horseshoe type (U-shaped).In this case, as long as in U-shaped
Winding section 68 is respectively set in a pair of of front end.
Second coil unit 59 is structure identical with first coil unit 57, to clip the second welding torch in the X-axis direction
43 mode has a pair of of magnetic coil 65,67.Magnetic coil 65,67 have the shape of a hoof (U-shaped) as magnetic core iron core 69, with
And it is wound with the winding section 68 of conducting wire.
First coil unit 57, the second coil unit 59 are configured to from the welding torch 39,43 with Y direction configured in parallel towards weldering
Outside between torch tilts.Thus, each magnetic coil 65,67 from tilted direction to be inserted into the front end of iron core 69 in the both sides of welding torch 39,43
State configuration.
First coil unit 57 is supported by coil mobile mechanism 71.The one end of coil mobile mechanism 71 is fixed in pedestal
21, bearing first coil unit 57.Coil mobile mechanism 71 has the sliding block towards Z-direction, X-direction, Y direction, by
The bearing of one coil unit 57 is the relative position that can be changed with welding torch 39.
Second coil unit 59 is by the bearing of coil mobile mechanism 72 of structure identical with coil mobile mechanism 71 can
The relative position of change and welding torch 43.
It should be noted that coil mobile mechanism 71,72 can make first coil unit 57, second by motor driving
The structure that coil unit 59 moves can also be the knot by making first coil unit 57, the movement of the second coil unit 59 manually
Structure.Also, coil mobile mechanism 71,72 can also only be that first coil unit 57, the second coil unit 59 are fixed on and are wished
The mechanism of the position of prestige.
In addition, being configured with gas suction unit 27 between the first welding torch 39 and the second welding torch 43.Gas suction unit 27 configures
In the centre position of the first welding torch 39 and the second welding torch 43, attract the week comprising sputtering object, smog generated from the second welding torch 43
Enclose gas, remaining protective gas.It is preferred that being 0.1~2.0 (m in traffic attraction3/ point) in the range of attracted.
It should be noted that gas suction unit 27 can also be replaced, screening is set for each welding torch between welding torch
The plank etc. of gear surrounding space blocks component.Also, gas suction unit 27 can also be set together and block component.
The shape of above-mentioned twin shaft sliding block 47,48 and workpiece 19 correspondingly changes the weldering of the first welding torch 39 and the second welding torch 43
Connect position, welding torch interval.In addition, coil mobile mechanism 71,72 follows the movement of welding torch 39,43, and change welding torch 39,43 with
The relative position of each magnetic coil 65,67.
Fig. 4 be first coil unit 57, the second coil unit 59 and the first welding torch 39, the second welding torch 43 it is schematic
Vertical view.
First coil unit 57 and the second coil unit 59 are configured to make the opening end side of the iron core 69 of horseshoe type (U-shaped)
Face-to-face, and keep the axis direction of winding section 68 parallel with Z-direction.It is preferred that electrode 41 and second possessed by the first welding torch 39
The interelectrode distance Wt of electrode 41 possessed by welding torch 43 is 50mm~400mm.By making interelectrode distance Wt be 50mm or more,
Can inhibit the input heat to workpiece, by make interelectrode distance Wt be 400mm hereinafter, weld appearance can be made better
It is good.
Fig. 5 is the schematical definition graph of the position relationship of the electrode and coil unit that show welding torch.It should be noted that
First coil unit 57 and the first welding torch 39 are only shown in illustrated example, but for the second coil unit 59 and the second welding torch 43
It is identical.Fig. 5 is the vertical view from the direction vertical with the coil axis Lx of magnetic coil 65,67, the first weldering in figure
The electrode 41 of torch 39 indicates electrode front position.
Magnetic coil 65,67 is parallelly configured each coil axis Lx centered on electrode 41.Electrode 41 is configured to welding
It can be relatively moved with magnetic coil 65,67 in direction, that is, Z-direction.It is preferred that the movable distance Ls of the relative movement is with magnetic coil
65, the axis direction overall length Lc in winding section 68 centered on the midpoint Oc of the axis direction overall length Lc of 67 winding section 68
1.5 times within.
That is, electrode 41 can slide laterally portion 51 with magnetic coil 65,67 by the twin shaft sliding block 47,48
And coil mobile mechanism 71,73 changes the relative position of both sides between distance Ls.
It is the line of 1600 circles, each magnetic coil 65,67 that magnetic coil 65,67, which can use the number of turns of the conducting wire in winding section 68,
The mutual axle base Wc of coil axis Lx are in the magnetic coil of the range of 80mm~200mm.By making the number of turns of conducting wire be 800 circles
More than, the deficiency in magnetic field is not will produce, by making the number of turns of conducting wire be enclosed for 1600 hereinafter, not will produce the coarse of magnetic coil outer diameter
Change.In addition, being 80mm or more by making the distance between a pair of of winding section, the interference of magnetic coil and electrode can be inhibited,
It is 200mm or less by making the distance between a pair of of winding section, it is difficult to generate the deficiency in magnetic field.On it should be noted that
The axle base Wc stated correspondingly can suitably increase and decrease with the shape of component parts.In addition, also can with electric arc point assigned
Desirable magnetic flux density correspondingly suitably increases and decreases the number of turns of above-mentioned conducting wire.
The relative position of these electrodes 41 and magnetic coil 65,67 becomes the arc deflection for making to generate from electrode 41 as described later
Adjusting parameter.
Fig. 6 is the control block diagram of arc welding system 200.
Arc welding system 200 has the control unit 73 being provided separately with the arc-welding apparatus 100 for being equipped on balladeur train 17.
Control unit 73 controls the action of each section of arcing welder 100.For example, control unit 73 is to base
Movement in the balladeur train 17 of motor 29, the first welding torch 39 based on twin shaft sliding block 47,48, the second welding torch 43 sliding, be based on line
Enclose the sliding of the first coil unit 57, the second coil unit 59 of mobile mechanism 71,72, the filling weldering based on welding wire feeding head 25
The actions such as the supply of silk are controlled.
In addition, connecting the (ginseng of magnetic coil 65,67 of oriented first coil unit 57, the second coil unit 59 in control unit 73
According to Fig. 3) the coil magnetization portion 61 that supplies electric power.Control unit 73 divides the electric power of the coil magnetization inputted from coil magnetization portion 61
It does not export to first coil unit 57, the second coil unit 59.In addition, there is control unit 73 opposite magnetic coil 65,67 to supply
Electricity is controlled and is made the function that the direction of electric current inverts.In this way, control unit 73 have by make field pole sex reversal or
Coil position is changed using coil mobile mechanism 71,72 and makes the external magnetic around the electric arc of the first welding torch 39 and the second welding torch 43
The function of field variation.In addition, the polar reversion of excitation, the movement of coil position can be carried out by control unit 73, but can also led to
It crosses and the progress such as the controller of 73 split settings of control unit.
Control unit 73 is connect via the relay 33 for being equipped on balladeur train 17 with operation portion 31.There is operation portion 31 setting to weld
The operation button (not shown) of condition, the control condition of coil unit etc., display unit etc..By each operation button, receive to come from
The operation of the setting of the welding condition determined in the change weld job of user, the operation etc. for starting weld job.In addition, operation
Portion 31 has the connector being connect with external memory, is stored in weld job in the external memory being connect with connector
The welding condition come from the transmission of control unit 73.External memory is arranged to relative to the storage that operation portion 31 loads and unloads to be situated between
Matter, for example, from the viewpoint of general, large capacity, it is small-sized and use flash memories, but not limited to this.
The display unit of operation portion 31 is made of LCD monitor etc., shows content, error message of welding condition etc..This
Place, error message are and the relevant information of mistake that is generated before weld job, in weld job.In error message for example comprising
With the wrong relevant information such as electric arc interruption, electric arc stopping, electric pole short circuit, servo abnormality, abnormity of power supply.
In addition, arc welding system 200 has：Weldingvoltage is applied to each electrode of the first welding torch 39 and the second welding torch 43
And generate TIG weld power supply 75A, 75B of electric arc；It is supplied electric power to the filler wire of each electrode via welding wire feeding head 25
MC power supplys 77A, 77B；The cooling water circulation driving portion 79 for making cooling water be recycled in each welding torch；And supply protection gas to each welding torch
The protective gas of body supplies driving portion 91.These also connect with control unit 73 and respectively by drive controls.
Apply welding between each electrode and workpiece of TIG weld power supply 75A, 75B pairs of the first welding torches 39 and the second welding torch 43
Voltage.In addition, MC power supplys 77A, 77B supplies well known electric arc adjustment voltage by filler wire.TIG weld power supply 75A,
Each ground wire E of 75B, MC power supply 77A, 77B are connect via the grounding points of workpiece with workpiece.
Protective gas supply driving portion 91 is connect by air hose 97 with the Ar gas cylinders 95 for being provided with pressure controller 93,
The argon gas fed from Ar gas cylinders 95 is supplied by air hose 99 to the first welding torch 39 and the second welding torch 43.
Cooling water circulation driving portion 79 makes cooling water be recycled in the first welding torch 39 and the second welding torch 43.Cooling water circulation drives
After dynamic portion 79 will be cooled to set point of temperature from the cooling water that these welding torches return by heat exchange, come again towards the supply of each welding torch
It is cooled down.
In arc welding system 200, whole control can also be implemented by a control unit 73, but can also be by purposes point
Seperated control unit is not set.For example, it is also possible to by from TIG weld power supply 75A, 75B towards being supplied between electrode and workpiece
Control unit that electric power, the electric power supplied from MC power supplys 77A, 77B towards filler wire are controlled, to from coil magnetization portion 61 towards line
The control unit etc. that the electric power of coil unit supply is controlled is provided separately with control unit 73.
In addition, welding condition is stored in the internal storage of control unit 73 by control unit 73 in weld job, will store
It is transmitted to the external memory being connect with the connector of operation portion 31 in the welding condition of internal storage.
Then, the effect of the arc-welding apparatus of above structure 100 is illustrated.
Hereinafter, using Fig. 7~Figure 10 to using magnetic coil generate external magnetic field, inhibit the appearance of arc interference or magnetic blow-out into
Row explanation.
Fig. 7 be show effect make electric arc towards welding direction upstream side electromagnetic force in the case of electrode and magnetic coil
The action specification figure of position and current direction.It should be noted that first coil unit 57 and the second coil unit 59 and
First welding torch and the second welding torch 43 are respectively identical structure, therefore both sides obtain identical effect.
According to the relative position of electrode 41 and magnetic coil 65,67, the electric current, the current direction that apply to magnetic coil 65,67, magnetic
Flux density and the magnetic line of force change.Such as DC current, Electrode Negative (DCEN) condition in the case of, by electrode
41 are configured at the downstream side of the welding direction WD of magnetic coil 65,67, so that welding direction WD's is upper in 65 circulating current of magnetic coil
Swimming side becomes the poles N (directions arrow D1 in figure), makes the downstream side of welding direction WD become the poles N in 67 circulating current of magnetic coil
(directions arrow D2 in figure).Then, magnetic line of force LMF2 caused by magnetic line of force LMF1, magnetic coil 67 caused by magnetic coil 65 with
And the direction of magnetic line of force LMF3 caused by electrode 41 is consistent along identical direction in the downstream side of the welding direction WD of electrode 41,
Magnetic flux density is got higher.On the other hand, other positions around electrode 41, the magnetic from magnetic coil 65,67 and electrode 41
The direction of the line of force is inconsistent, and magnetic flux density is relatively lower.As a result, mainly making to the electric arc generated from electrode 41 when welding
With the synthesis magnetic line of force LMF at the high position of magnetic flux density, play a role towards the electromagnetic force EMF of the upstream side of welding direction WD.
To the direction of the electromagnetic force EMF of arcing according to electrode 41, the direction of the electric current of magnetic coil 65,67, Yi Ji electricity
The relative position of pole 41 and magnetic coil 65,67 and change.Thus, in the arc-welding apparatus of this structure, pass through control unit 73
(with reference to Fig. 6) is to electrode 41 and the direction of the electric current of magnetic coil 65,67 and the relative position of electrode 41 and magnetic coil 65,67
It is controlled, electric arc can be made to be deflected towards welding direction upstream side relative to welding direction WD.
Fig. 8 be show to arcing towards welding direction downstream side electromagnetic force in the case of electrode and magnetic coil
The action specification figure of position and current direction.
In the case that with application electric current shown in Fig. 7 under the same conditions, as shown in figure 8, being configured at by electrode 41
In the case of the upstream side of the welding direction WD of magnetic coil 65,67, magnetic line of force LMF1 from magnetic coil 65, magnetic coil 67 is come from
Magnetic line of force LMF2 and come self-electrode 41 magnetic line of force LMF3 direction electrode 41 welding direction upstream side along identical
Direction it is consistent, magnetic flux density is got higher.On the other hand, other positions around electrode 41, from magnetic coil 65,67 and
The direction of the magnetic line of force of electrode 41 is inconsistent, and magnetic flux density relatively reduces.As a result, from the generation of electrode 41 when to welding
The synthesis magnetic line of force LMF at the high position of electric arc main function magnetic flux density, towards the electromagnetic force EMF in the downstream side of welding direction WD
It plays a role.
As shown in Figure 7 and Figure 8, electrode 41 and the relative position of magnetic coil 65,67 is made to change along welding direction WD, by
This, can by the direction of the electromagnetic force from the arcing that electrode 41 generates is adjusted to welding direction WD upstream side or under
Swim any direction of side.In addition, the strong of electromagnetic force can be adjusted by increasing and decreasing the application electric current that apply towards magnetic coil 65,67
Degree.
Fig. 9 is the case where showing the electromagnetic force of a side orthogonal with welding direction to arcing direction (right side in figure)
Under electrode and the position of magnetic coil and the action specification figure of current direction.
The case where with Fig. 7, Fig. 8, is identical, and under conditions of DC current, Electrode Negative (DCEN), electrode 41 is configured
In the center of the welding direction WD of magnetic coil 65,67, the upstream that circulating current makes welding direction WD is distinguished in magnetic coil 65,67
Side becomes the poles N (directions arrow D1, D2 in figure).Then, caused by magnetic line of force LMF2 caused by magnetic coil 67 and electrode 41
The direction of magnetic line of force LMF3 is consistent along identical direction in a side (in figure left side) orthogonal with the welding direction WD of electrode 41,
Magnetic flux density is got higher.On the other hand, other positions around electrode 41, the magnetic from magnetic coil 65,67 and electrode 41
The direction of the line of force is inconsistent, and magnetic flux density relatively reduces.As a result, mainly making to the electric arc generated from electrode 41 when welding
With the synthesis magnetic line of force LMF at the high position of magnetic flux density, towards another side (in figure right side) orthogonal with welding direction WD
Electromagnetic force EMF plays a role.
Figure 10 is the electromagnetic force shown to arcing towards another side (in figure left side) orthogonal with welding direction
In the case of electrode and the position of magnetic coil and the action specification figure of current direction.
In case of fig. 10, in addition to Fig. 9 the case where compared with make the opposite this point of polarity of magnetic coil 65,67 other than,
It is identical as the condition in the case of Fig. 9.In this case, produced by magnetic line of force LMF1 caused by magnetic coil 65 and electrode 41
Magnetic line of force LMF3 direction on another side orthogonal with the welding direction WD of electrode 41 (right side in figure) along identical direction
Unanimously, magnetic flux density is got higher.On the other hand, other positions around electrode 41 come from magnetic coil 65,67 and electrode 41
The magnetic line of force direction it is inconsistent, magnetic flux density relatively reduces.As a result, to the electric arc master generated from electrode 41 when welding
The synthesis magnetic line of force LMF at the high position of magnetic flux density is acted on, towards a side (in figure left side) orthogonal with welding direction WD
Electromagnetic force EMF play a role.
As shown in Figure 9, Figure 10, electrode 41 is configured to the center of the welding direction WD of magnetic coil 65,67, makes magnetic coil
65,67 polarity is identical polar on welding direction WD, and the direction of electric current is made to change, and thus, it is possible to will be to from electrode 41
The direction of the electromagnetic force of the arcing of generation is adjusted to any court in the side or the other side orthogonal with welding direction WD
To.In addition, the intensity of electromagnetic force can be adjusted by increasing and decreasing the application electric current applied towards magnetic coil 65,67.
In this way, arc-welding apparatus 100 can relative to welding direction WD updrift side, downstream direction and with weldering
Connect the orthogonal both direction in direction adds up to the deflection direction that electric arc is controlled on 4 directions, such as the case where producing magnetic blow-out
Under, the direction relative to magnetic blow-out generates electromagnetic force in the opposite direction, is influenced caused by magnetic blow-out thus, it is possible to eliminate.
Herein, the power for being applied to electric arc changes according to the magnetic flux density of electrode position, and electricity is acted on when less than 10mT
The power of arc is insufficient, and the power that electric arc is acted on when higher than 90mT is superfluous.Therefore, as the most stabilized model of welding quality can be made
It encloses, preferably 10~90mT.In addition, in the case where preventing magnetic blow-out, the intensity of maximum magnetic blow-out is depended in multiple electrodes stream
Dynamic electric current adds up to.Therefore, more preferably in the electrode closest to grounding points (in this configuration example for the second welding torch 43
Electrode) in, add up to ranging from the 1.5~60.0 of the ratio (total electric current/magnetic flux density) of electric current and magnetic flux density.By that will close
The ratio of meter electric current and magnetic flux density is set as 60.0 hereinafter, the deficiency in magnetic field is not will produce, by the way that total electric current and magnetic flux is close
The ratio of degree is set as 1.5 or more, can inhibit the coarsening of magnetic coil outer diameter.
Then, the arc-welding method for having used the arc-welding apparatus 100 of above structure is illustrated.
The purposes such as the side plate that can be applied to welding LNG tank of arc-welding apparatus 100.That is, relative to edge
The groove 49 (with reference to Fig. 3) for the workpiece of upper and lower directions extension, configures the first welding torch 39, the second welding torch in their extension direction
43, electric arc is generated between the electrode of the electrode and the second welding torch 43 of workpiece 19 and the first welding torch 39 to be welded.In side
Plate is equipped with track 11 along groove 49, the balladeur train 17 of arc-welding apparatus 100 on the track 11 voluntarily.
In this configuration example, arc-welding apparatus 100 is by TIG weld by a pair of of non-consumable electrode (electrode 41) opposite
In the upstream side of welding direction and each configuration one of downstream side difference.These electrodes are by shown in fig. 6 based on control unit 73
The location action of twin shaft sliding block 47,48 and the defined welding position for being configured at XYZ axis directions.Arc-welding apparatus 100 utilizes
Be configured in multiple electrodes at least closest to the magnetic coil 65,67 of the both sides of the electrode of the side of the grounding points of workpiece 19
Generate external magnetic field.
Arc-welding apparatus 100 is made using the external magnetic field controlled by control unit 73 in the first welding torch 39, the second welding torch 43
The arc deflection generated respectively inhibits magnetic blow-out.Each data such as tables of data are inhibited to control magnetic blow-out based on pre-stored magnetic blow-out
Inhibition acts.It is for example produced in the first welding torch 39, the second welding torch 43 comprising corresponding with welding current in magnetic blow-out inhibits tables of data
The information such as raw magnetic blow-out amount (displacement), the driving current of each coil unit for correcting the magnetic blow-out displacement.Magnetic blow-out presses down
Tables of data processed is for example stored in the internal storage of control unit 73.Arc-welding apparatus 100 is from control unit 73 by these coil lists
The driving current of member is stored in the external memory of operation portion 31 to be welded together with other welding conditions.Exist as a result,
It is corresponding with the first welding torch 39,43 respective welding current of the second welding torch in this arc-welding method, using control unit 73 by electric arc
Generation position is relative to welding direction towards total the four of upstream side and downstream side and the both direction orthogonal with welding direction
A direction carries out direction controlling, can be welded in the state of inhibiting magnetic blow-out.
According to the arc-welding apparatus 100 of this above-mentioned structure, in the electrode of the grounding points closest to workpiece 19
Both sides configuration a pair of magnetic coil 65,67.These magnetic coils 65,67 of electrode are clipped with the axis of magnetic coil 65,67 along workpiece
The posture configuration of 19 welding direction.Posture along the welding direction of workpiece 19 refer to relative to workpiece 19 magnetic coil 65,
Welding surface of 67 axis in addition to vertical relative to workpiece 19 be parallel or inclined posture.
In addition, each electrode 41 of the first welding torch 39 and the second welding torch 43 is becoming electrode just or electrode is negative, in surrounding them
Generate magnetic field.On the other hand, in the magnetic coil 65,67 for clipping electrode 41 also circulating current, magnetic field is thus generated.Utilize these electricity
The magnetic field in magnetic field and magnetic coil 65,67 around pole makes arc deflection.Make the power (electromagnetic force) of the arc deflection in the magnetic line of force
Become in consistent resultant magnetic field strong.The direction of the electromagnetic force is according to electrode 41, the direction of the electric current of magnetic coil 65,67, electrode 41
Change with the relative position of magnetic coil 65,67.Therefore, in arc-welding apparatus, using control unit 73 to electrode, coil list
The direction of the electric current of member is controlled with relative position, can be by electric arc towards total 4 directions progress side including welding direction
To control.Thereby, it is possible to inhibit arc interference and magnetic blow-out.
In addition, in arc-welding apparatus 100, the position of electrode 41, will not be from magnet-wire between a pair of of magnetic coil 65,67
1.5 times of distance of the front end separation of circle more than winding section overall length.Thereby, it is possible to ensure to make needed for arc deflection with low electric power
Electromagnetic force.
In addition, arc-welding apparatus 100 is, for example, the structure of bipolar electrode and ground wire only one, flowed when in each electrode
In the case of the electric current of 150A, it is 300A to add up to electric current.The total electric current the big, and magnetic blow-out becomes bigger, therefore, in order to inhibit magnetic
Blow and need the magnetic flux density of bigger.Therefore, the range of total electric current and the ratio of magnetic flux density is set as 1.5 as described above
~60.0.
In addition, arc-welding apparatus 100 inhibits welding direction upstream side using gas suction unit 27 (or blocking component)
Welding torch electrode (backward electrode) electric arc it is unstable.That is, in the welding towards vertical upward direction, welding direction downstream side
Protective gas at the electrode (rear row pole) of welding torch rises along groove 49, is involved in ambient air, and thus, it is possible to inhibit because upsetting
The protective gas of backward electrode and the electric arc of backward electrode that generates is unstable.It should be noted that the gas suction unit 27 (or hide
Block material) especially become notable founding the effect of arc stability into welding.
In addition, arc-welding apparatus 100 can arbitrarily change first coil by the driving of coil mobile mechanism 71,72
The relative position of unit 57 and the second coil unit 59 relative to the electrode of welding torch.By the change of the relative position, can make
The direction for acting on the electromagnetic force of electric arc is inverted about welding direction.In addition, a pair of of magnetic coil 65,67 can be along detaching direction
(X-direction) is mobile, and thus, it is possible to be easily positioned electrode in detaching direction center.
In addition, arc-welding apparatus 100 interelectrode distance of first welding torch 39 and the second welding torch 43 is set as 50~
The range of 400mm.As a result, by making interelectrode distance be 50mm or more, can inhibit to input heat, in addition, by making electricity
The distance of interpolar is 400mm hereinafter, weld appearance can be made to become good.
In addition, arc-welding apparatus 100 makes the electric current applied towards filler wire, polarity by using MC power supplys 77A, 77B
Variation, can make magnetic fields caused by filler wire in electric arc.Therefore, by with based on first coil unit 57, second
The formation of the external magnetic field of coil unit 59 is used in combination, and the direction controlling of assistant electric arc is capable of.
[the second configuration example]
Then, the arc-welding apparatus of the second configuration example is illustrated.
Figure 11 is the major part composition figure of the arc-welding apparatus of the second configuration example.
The arc-welding apparatus 300 of this configuration example includes the welding torch 109, twin shaft sliding block 111, magnetic coil for having electrode 107
65, magnetic coil 67 and video camera 115.In addition, magnetic coil 65,67 be connected to the identical coil magnetization portion 61, according to
Instruction from control unit 73 and driven.
Control unit 73 with twin shaft sliding block 111, video camera 115 other than connecting, although not shown, but it is similar to the above with
The connections such as coil mobile mechanism 71,72 (with reference to Fig. 3), control each section together.
Video camera 115 is for example installed near welding torch, so as to shoot electric arc.The figure that video camera 115 will take
As data are exported as output information.The output information exported from video camera 115 is stored in and is deposited in inside by control unit 73
The video memory of the settings such as reservoir.In addition, by the image data of the output information preserved according to being stored in internal storage
Program handled, the posture that finds out electric arc, such as arc-center position.Control unit 73 is according to the posture of calculated electric arc
The amount of deflection of operation magnetic blow-out, with the amount of deflection of the magnetic blow-out correspondingly driving coil excitation division 61.
As a result, arc-welding apparatus 300 with the magnetic blow-out that is generated in electric arc correspondingly to being applied to the electricity of magnetic coil 65,67
Stream, current direction and coil mobile mechanism are controlled, and the deflection of the electric arc caused by magnetic blow-out can be made to be restored to normal shape
State.As a result, can implement to weld while inhibiting magnetic blow-out successively.
Thus, according to the arc-welding apparatus 100,300 of above-mentioned each configuration example, can not by welding posture, interpolar away from
Influence from equal execution conditions, inhibits arc interference and magnetic blow-out, efficiently to realize the welding of high quality.
【Embodiment】
Then, the embodiment for being implemented electric arc welding using above structure 1,2 is illustrated.It should be noted that herein
The welding condition of explanation is an example, and the present invention is not limited to welding conditions below.
Electric arc welding condition is more preferably range below.
Welding current：80~300A
Arc voltage：5~15V
Speed of welding：5~30cm/min
Interelectrode distance：50~400mm
When implementing electric arc welding under above-mentioned welding condition, be able to confirm that configuration example 1,2 and can inhibit arc interference,
The generation of magnetic blow-out and the welding for carrying out high quality.
In this way, the present invention is not limited to above-mentioned embodiment, each structure of embodiment is combined with each other, this field
Record and well known technology of the technical staff based on specification change, using the expectation of the present invention is also among, packet
Contained in the range for seeking protection.
For example, be each configured with coil unit in above-mentioned a pair of of welding torch, but can also be configured to only be configured near
The welding torch side of the grounding points of nearly workpiece configures coil unit.
It in addition, above-mentioned a pair of of welding torch is non-consumable electrode, but can be consumption electrode, either one can also be configured to
It is consumption electrode for non-consumable electrode, another party.
In addition, above-mentioned arc-welding apparatus can also be configured to that the welding torch side of electric arc and the coil for generating magnetic field will be generated
Cell side detaches.In this case, by will be provided with coil unit, coil mobile mechanism, coil magnetization portion and control unit
Electric arc welding is additional to arbitrary arc-welding apparatus with magnetic controller, is formed to general apparatus structure.
As described above, disclosing following item in the present specification.
(1) a kind of arc-welding apparatus, two be made of the one side or both sides of non-consumable electrode or consumption electrode
Above multiple electrodes are configured along welding direction, are applied welding current between the multiple electrode and workpiece and are generated electricity
Arc, wherein
The arc-welding apparatus has：
A pair of of magnetic coil, they are arranged in the multiple electrode and are configured to connect near the ground connection of the workpiece
The electrode of socket part, the two armpit sides that clip the electrode；
Coil magnetization portion carries out excitation to a pair of magnetic coil and generates magnetic flux；And
Control unit, according to the electrode with the relative position of a pair of magnetic coil and from the electrode and one
The external magnetic field around the electric arc is set to change the magnetic flux of the magnetic coil.
According to the arc-welding apparatus, magnetic coil is configured in the both sides of the electrode of the ground wire near workpiece.Clip electricity
The magnetic coil of pole so that iron core axis along workpiece welding direction posture configuration.Electrode is becoming electrode just or electrode
It is negative, generate magnetic field in electrode itself.On the other hand, magnetic field is generated in the magnetic coil for clipping the electrode also streaming current.It utilizes
The magnetic field of these electrodes itself and the magnetic field of each magnetic coil make arc deflection.Make the electromagnetic force of the arc deflection from
The consistent time-varying of direction of the magnetic line of force of each section is strong.The direction of electromagnetic force according to electrode, the direction of the electric current of magnetic coil, electrode with
The relative position of magnetic coil and change.Thus, in arc-welding apparatus, the deflection for the electric arc because of caused by magnetic blow-out is led to
The relative position for crossing the direction of the electric current to electrode, magnetic coil, electrode and magnetic coil controls, can eliminate electric arc based on
The influence of magnetic blow-out.
(2) on the basis of the arc-welding apparatus of (1), the electrode is in the welding direction with the magnetic coil
Configuration is in the range of within 1.5 times of the winding section overall length centered on the midpoint of winding section overall length.
According to the arc-welding apparatus, the position of electrode is between a pair of of magnetic coil, can ensure to make electricity with low electric power
Electromagnetic force needed for arc deflection.
(3) on the basis of the arc-welding apparatus of (1) or (2), coil magnetization portion makes the electrode generate
Magnetic flux density is 10mT~90mT, is 1.5 in total electric current of grounding points flowing and the ratio of the magnetic flux density
~60.0.
According to the arc-welding apparatus, for example, bipolar electrode and ground wire for one, each electrode flow 150A electric current
In the case of, add up to electric current to become 300A.The total electric current of synthesis the big, and the magnetic blow-out generated is stronger, therefore, in order to inhibit magnetic
It blows and needs big magnetic flux density.Therefore, by the way that the ratio of total electric current and magnetic flux density is set as 60.0 hereinafter, not will produce
The deficiency in magnetic field can inhibit the coarse of magnetic coil outer diameter by the way that the ratio of total electric current and magnetic flux density is set as 1.5 or more
Change.
(4) on the basis of any one arc-welding apparatus in (1)~(3), the multiple electrode electrode each other
Between be provided with attract ambient gas gas suction unit.
According to the arc-welding apparatus, the unstable of the electric arc of the backward electrode in multiple electrodes can be inhibited.For example, in court
In the welding of vertical upward direction, the protective gas of rear row pole rises along groove, which, which becomes, is involved in ambient air
Gas and cover around backward electrode, as a result, the electric arc of backward electrode can be inhibited to become unstable.
(5) on the basis of any one arc-welding apparatus in (1)~(4), the multiple electrode electrode each other
Between be provided with the surrounding space for blocking each electrode block component.
According to the arc-welding apparatus, the unstable of the electric arc of the backward electrode in multiple electrodes can be inhibited.For example, in court
In the welding of vertical upward direction, the protective gas of rear row pole rises along groove, can inhibit the protection gas because upsetting backward electrode
Body and the electric arc of backward electrode that generates is unstable.
(6) on the basis of any one arc-welding apparatus in (1)~(5), the control unit makes the magnetic coil edge
The welding direction movement.
According to the arc-welding apparatus, each magnetic coil is moved freely by coil mobile mechanism.Magnetic coil is along weldering
Direction movement is connect, thus enables that the direction reversion for the electromagnetic force for acting on electric arc.
(7) on the basis of any one arc-welding apparatus in (1)~(6), control unit makes the excitation of the magnetic coil
Polarity inverts.
It according to the arc-welding apparatus, is inverted, is made outer around electric arc by the direction for the electric current for making to supply to magnetic coil
The direction of the magnetic line of force in portion magnetic field inverts, and can simply invert the direction of generated electromagnetic force.
(8) on the basis of any one arc-welding apparatus in (1)~(7), the multiple electrode is by including two electricity
The non-consumable electrode of pole is constituted, and two interelectrode interpolar distances are 50mm~400mm.
Be 50mm or more by making two interelectrode interpolars distances according to the arc-welding apparatus, eliminate arc interference,
The concentration for inputting heat, by making two interelectrode interpolars distances be 400mm hereinafter, weld appearance becomes good.
(9) on the basis of the arc-welding apparatus of (8), the arc-welding apparatus has：Welding wire feeding head, towards institute
State the filler wire that non-consumable electrode feeds at least one or more；Electricity is applied independently to the filler wire in welding wire power supply
Stream；And welding wire electric current adjustment section, so that at least one party in the electric current and polarity that apply to the filler wire is changed.
According to the arc-welding apparatus, make the electric current of filler wire, change in polarity, energy by using welding wire electric current adjustment section
The magnetic field for carrying out self-electrode is enough set to interfere electric arc.Therefore, by the formation with the external magnetic field based on magnetic coil is used in combination
It is capable of the direction controlling of assistant electric arc.
(10) a kind of arc-welding method, two be made of the one side or both sides of non-consumable electrode or consumption electrode
Above multiple electrodes are configured along welding direction, are applied welding current between the multiple electrode and workpiece and are generated electricity
Arc, wherein to be arranged at the electrode for being configured to the grounding points near the workpiece in the multiple electrode,
A pair of of the magnetic coil for clipping two armpit sides of the electrode carries out excitation and generates magnetic flux, according to the electrode and a pair of magnetic coil
Relative position and magnetic flux from the magnetic coil and so that the external magnetic field around the electric arc is changed.
According to the arc-welding method, magnetic coil is configured in two armpit sides of the electrode of the grounding points near workpiece.
Clip the magnetic coil of electrode so that iron core axis along workpiece direction posture configuration.It is just or electric that electrode becomes electrode
It is extremely negative, generate magnetic field in electrode itself.On the other hand, magnetic field is generated in the magnetic coil for clipping the electrode also streaming current.Profit
Make arc deflection with the magnetic field of these electrodes itself and the magnetic field of each magnetic coil.The electromagnetic force of the arc deflection is set
It is strong from the consistent time-varying of the direction of the magnetic line of force of each section.That is, the direction of electromagnetic force is according to electrode, the electric current of magnetic coil
Change towards the relative position of, electrode and magnetic coil.Thus, in this arc-welding method, pass through the electricity to electrode, magnetic coil
The relative position of the direction of stream, electrode and magnetic coil is controlled, and can carry out direction controlling to electric arc.Thereby, it is possible to inhibit
Arc interference, magnetic blow-out.
(11) a kind of electric arc welding magnetic controller, the electrode that control is made of non-consumable electrode or consumption electrode
The directive property of generated electric arc, wherein the electric arc welding has with magnetic controller：Magnetic coil, in U-shaped iron core
Each front end is respectively provided with made of coiled electrical conductor a pair of of winding section；Coil mobile mechanism, configures the magnetic coil to
The electrode is clipped between a pair of winding section, and is that can be moved along welding direction by magnetic coil bearing；Line
Excitation division is enclosed, excitation is carried out to the magnetic coil and generates magnetic flux；And control unit, according to the electrode and a pair
The relative position of winding section and magnetic flux from the electrode and a pair of magnetic coil and make the outside around the electric arc
Changes of magnetic field.
According to the electric arc welding magnetic controller, a pair is set in a manner of clipping non-consumable electrode or consumption electrode
Magnetic coil.Each magnetic coil is wound with conducting wire in iron core in coiled type.Iron core can also be two independent sticks or horseshoe
Type (U-shaped).Magnetic coil is with the axis of iron core along the posture configuration of workpiece.Magnetic coil generates magnetic field by streaming current.
On the other hand, the electrode clipped by the magnetic coil is also becoming electrode just or electrode is born, and magnetic field is generated in electrode itself.Utilize this
A little magnetic fields of electrode itself and the magnetic field of each magnetic coil make arc deflection.Make the electromagnetic force of the arc deflection in the magnetic line of force one
Cause time-varying strong.The direction of electromagnetic force changes according to the relative position of electrode, the direction of the electric current of magnetic coil, electrode and magnetic coil
Become.Thus, in electric arc welding magnetic controller, pass through the direction of the electric current to electrode, magnetic coil, electrode and magnetic coil
Relative position is controlled, and can electric arc court all around be carried out direction controlling.
(12) on the basis of the electric arc welding magnetic controller of (11), the number of turns of the conducting wire of the winding section is
800 circles~1600 enclose, and the distance between a pair of winding section is 80mm~200mm.
Passed through under identical iron core, same wire diameter and identical voltage according to the electric arc welding magnetic controller
It is 800 circles or more to make the number of turns of conducting wire, not will produce the deficiency in magnetic field, by making the number of turns of conducting wire be enclosed hereinafter, will not for 1600
Generate the coarsening of magnetic coil outer diameter.In addition, being 80mm or more by making the distance between a pair of of winding section, can inhibit
The interference of magnetic coil and electrode is 200mm or less by making the distance between a pair of of winding section, it is difficult to generate magnetic field not
Foot.Thereby, it is possible to effectively carry out direction controlling to electric arc.
Claims (12)
1. a kind of arc-welding apparatus is made of more than two the one side or both sides of non-consumable electrode or consumption electrode
Multiple electrodes are configured along welding direction, are applied welding current between the multiple electrode and workpiece and are generated electric arc, wherein
The arc-welding apparatus has：
A pair of of magnetic coil, what they were arranged in the multiple electrode is at least configured to the grounding points near the workpiece
Electrode, the two armpit sides that clip the electrode；
Coil magnetization portion carries out excitation to a pair of magnetic coil and generates magnetic flux；And
Control unit, according to the electrode with the relative position of a pair of magnetic coil and from the electrode and a pair of of institute
It states the magnetic flux of magnetic coil and the external magnetic field around the electric arc is made to change.
2. arc-welding apparatus according to claim 1, wherein
The electrode configured centered in the welding direction by the midpoint of the winding section overall length of the magnetic coil it is described around
In the range of within 1.5 times of line portion overall length.
3. arc-welding apparatus according to claim 1, wherein
The magnetic flux density that the coil magnetization portion makes the electrode generate is 10mT~90mT,
It is 1.5~60.0 in total electric current of grounding points flowing and the ratio of the magnetic flux density.
4. arc-welding apparatus according to claim 1, wherein
The gas suction unit for attracting ambient gas is provided between the electrode of the multiple electrode.
5. arc-welding apparatus according to claim 1, wherein
The surrounding space for blocking each electrode is provided between the electrode of the multiple electrode blocks component.
6. arc-welding apparatus according to claim 1, wherein
The control unit makes the magnetic coil be moved along the welding direction.
7. arc-welding apparatus according to claim 1, wherein
The control unit makes the field pole sex reversal of the magnetic coil.
8. arc-welding apparatus according to any one of claim 1 to 7, wherein
The multiple electrode is made of the non-consumable electrode comprising two electrodes, two interelectrode interpolars distances be 50mm~
400mm。
9. arc-welding apparatus according to claim 8, wherein
The arc-welding apparatus has：
Welding wire feeding head feeds at least one or more filler wire towards the non-consumable electrode；
Electric current is applied independently to the filler wire in welding wire power supply；And
Welding wire electric current adjustment section makes at least one party in the electric current and polarity that apply to the filler wire change.
10. a kind of arc-welding method, the two or more being made of the one side or both sides of non-consumable electrode or consumption electrode
Multiple electrodes configured along welding direction, between the multiple electrode and workpiece apply welding current and generate electric arc,
In,
To the electrode for being at least configured to the grounding points near the workpiece that is arranged in the multiple electrode, clip
A pair of of magnetic coil of two armpit sides of the electrode carries out excitation and generates magnetic flux,
Make the electricity according to the electrode and the relative position of a pair of magnetic coil and the magnetic flux from the magnetic coil
External magnetic field variation around arc.
11. a kind of electric arc welding magnetic controller, the electrode that control is made of non-consumable electrode or consumption electrode is produced
The directive property of raw electric arc, wherein
The electric arc welding has with magnetic controller：
Magnetic coil is respectively provided with made of coiled electrical conductor a pair of of winding section in each front end of U-shaped iron core；
Coil mobile mechanism configures the magnetic coil to clip the electrode between a pair of winding section, and will
The magnetic coil bearing is that can be moved along welding direction；
Coil magnetization portion carries out excitation to the magnetic coil and generates magnetic flux；And
Control unit, according to the electrode with the relative position of a pair of winding section and from the electrode and a pair of of institute
It states the magnetic flux of magnetic coil and the external magnetic field around the electric arc is made to change.
12. electric arc welding magnetic controller according to claim 11, wherein
The number of turns of the conducting wire of the winding section is~1600 circle of 800 circle,
Distance between a pair of winding section is 80mm~200mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-014341 | 2017-01-30 | ||
| JP2017014341A JP6817092B2 (en) | 2017-01-30 | 2017-01-30 | Arc welding equipment, arc welding method, and magnetic control equipment for arc welding |
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| Publication Number | Publication Date |
|---|---|
| CN108372343A true CN108372343A (en) | 2018-08-07 |
| CN108372343B CN108372343B (en) | 2020-05-05 |
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| CN201711384110.2A Active CN108372343B (en) | 2017-01-30 | 2017-12-20 | Arc welding device, arc welding method, and magnetic control device for arc welding |
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| Country | Link |
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| JP (1) | JP6817092B2 (en) |
| KR (1) | KR102051277B1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114799421A (en) * | 2022-06-29 | 2022-07-29 | 江苏芯安集成电路设计有限公司 | Singlechip welding intelligence control system |
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|---|---|---|---|---|
| JP7028538B2 (en) * | 2018-08-30 | 2022-03-02 | 株式会社ダイヘン | 2-electrode arc welding method |
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| CN114192932B (en) * | 2022-01-05 | 2023-05-05 | 湘潭大学 | Six-head sharp angle magnetic control arc device with separated coil and iron core |
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Also Published As
| Publication number | Publication date |
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| KR102051277B1 (en) | 2019-12-03 |
| KR20180089278A (en) | 2018-08-08 |
| CN108372343B (en) | 2020-05-05 |
| JP6817092B2 (en) | 2021-01-20 |
| JP2018122310A (en) | 2018-08-09 |
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