CN108176915A - The striking control method of polymorphic double wire welding device and polymorphic double wire welding device - Google Patents
The striking control method of polymorphic double wire welding device and polymorphic double wire welding device Download PDFInfo
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- CN108176915A CN108176915A CN201711305494.4A CN201711305494A CN108176915A CN 108176915 A CN108176915 A CN 108176915A CN 201711305494 A CN201711305494 A CN 201711305494A CN 108176915 A CN108176915 A CN 108176915A
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- welding
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- welding wire
- bridge arm
- electronic switch
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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
- B23K9/06—Arrangements or circuits for starting the arc, e.g. by generating ignition voltage, or for stabilising the arc
- B23K9/067—Starting the arc
- B23K9/0671—Starting the arc by means of brief contacts between the electrodes
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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
- B23K9/32—Accessories
Abstract
The invention discloses a kind of polymorphic double wire welding device and its striking control method, which includes welding gun, power supply, governor circuit, wire feeding circuit and full bridge inverter, is used to install the first and second welding wires on welding gun；Full bridge inverter corresponds to the welding wire electric current and welding current for adjusting the first and second welding wires under the control of governor circuit according to the electric current that power supply exports；When receiving welding instruction, control power supply is exported to the first welding wire, and control wire feeding circuit that the first welding wire to workpiece wire feed, ignites to form ionized space when the first welding wire being made to contact with workpiece governor circuit；After determining that the first welding wire arcing is stablized, the second welding wire to workpiece wire feed, is made the second welding wire contact to form ionization circuit with the ionized space of the first welding wire by control wire feeding circuit；When determining that second source electric current is constant, Switching power is exported to the second welding wire and is ignited, and completes mariages starting the arc action.Occurs the problem of welding wire is quick-fried disconnected during the invention avoids the welding wire starting the arc.
Description
Technical field
The present invention relates to automatic welding field more particularly to a kind of polymorphic double wire welding devices and polymorphic double wire welding device
Striking control method.
Background technology
Polymorphic double wire welding device is a kind of welding manner of low_input_power amount high deposition rate, especially suitable for high-end automatic
Change welding field, welding efficiency can be improved under identical power supply platform, there is the powerful market competitiveness.
Existing polymorphic double wire welding device is made of welding machine and power unit, as shown in Figure 1, wherein welding machine has two welderings
Rifle 4-1 and 4-2, power unit mainly include two power supplys 1 and 2, governor circuit, wire feeding circuit and full bridge inverter, wherein,
Two power supply output phases differ 180 ° of power supply signal, and full bridge inverter is defeated by two power supplys under the control of governor circuit
Go out to welding gun, to heat and light welding wire 6-1 and 6-2, the also referred to as starting the arc；Wire feeding circuit drives under the control of governor circuit
Welding gun carries out welding action, is welded with realizing with workpiece 7.It should be noted that starting the arc effect is one in field of automatic welding
A very important index determines welding workpiece quality after molding.
Existing polymorphic double wire welding device starting the arc effect is bad always, after multiple quick-fried disconnected welding wire can all occur in each starting the arc
It could work normally, the quick-fried disconnected course of work such as Fig. 2 of the starting the arc, wire feed is such as simultaneously for two silks when polymorphic double wire welding device works
Step 1；By check the present apparatus work equivalent circuit (Fig. 1) we it can be found that L1, L2 individually from different power supplys 1
With 2 connections, poor 180 ° of two power phases, welding wire touches such as Step 2 after workpiece 7, and L1 forming circuits flow through high current I1,
Simultaneously because two root wire 6-1 and 6-2 are short-circuit by workpiece 7, the power work between two root wire 6-1 and 6-2 forms electric current
Im；The electric current on L1 is equal to I1+Im at this time；Since the electric current on L1 is excessive, the quick-fried disconnected striking of welding wire such as Step 3；Work as power supply
The power work at L2 both ends after commutation, the transient energy on L2 is still excessive, therefore also can quick-fried disconnected striking.
Invention content
It is a primary object of the present invention to provide the starting the arc of a kind of polymorphic double wire welding device and polymorphic double wire welding device
Control method, it is intended to avoid the problem that occurring welding wire during the welding wire starting the arc quick-fried disconnected.
To achieve these goals, the present invention provides a kind of polymorphic double wire welding device, the polymorphic double wire welding device packet
Welding gun, the first power supply, second source, governor circuit, wire feeding circuit and full bridge inverter are included, wherein, it is used to install on welding gun
First welding wire and the second welding wire；The governor circuit is used to control the bridge arm on off state of the full bridge inverter；It is described complete
Electric current of the bridge inverter circuit for being exported under the control of the governor circuit according to first power supply and second source corresponds to
Adjust the welding wire electric current and welding current of first welding wire and the second welding wire；The wire feeding circuit is in the control of the governor circuit
The lower driving welding gun of system is to workpiece wire feed, to be welded to workpiece；
The governor circuit is used for：
When receiving welding instruction, the first power supply out-put supply to the first welding wire is controlled, and controls the first welding wire to work
Part performs wire feed operation, so that the first welding wire ignites when being contacted with workpiece, and forms ionized space；
After determining that the first welding wire arcing is stablized, control the wire feeding circuit that the second welding wire is performed wire feed behaviour to workpiece
Make, the second welding wire is made to contact to form ionization circuit with the ionized space of the first welding wire；
When determining that second source electric current is constant, it will export to the power supply switching of the first welding wire and export to the second welding wire, with
Ignite the second welding wire, completes mariages starting the arc action.
Preferably, first power supply is constant-voltage DC source, and the second source is constant-current dc power supply.
Preferably, the welding gun quantity is two, and is respectively to install the first welding gun of first welding wire and installing institute
State the second welding gun of the second welding wire；The full bridge inverter includes bridge arm electronic switch, the first lower bridge arm electronic cutting on first
It closes, bridge arm electronic switch and the second lower bridge arm electronic switch on second, bridge arm on bridge arm electronic switch and second on described first
Anode of the first end of electronic switch with the anode of the constant-voltage DC source and the constant-current dc power supply is connect；Described
The second end of bridge arm electronic switch and the interconnection of the first end of the first lower bridge arm electronic switch on one, and connect with the first welding gun；
The second end of bridge arm electronic switch and the interconnection of the first end of the second lower bridge arm electronic switch, connect with the second welding gun on described second
It connects；The second end of bridge arm electronic switch and the second lower bridge arm electronic switch is negative with the constant-voltage DC source on described second
Pole connects；Bridge arm electronic switch on described first, the first lower bridge arm electronic switch, bridge arm electronic switch and second time bridge on second
The controlled end of arm electronic switch is connect with the governor circuit；The cathode of the constant-current dc power supply is connect with welding workpiece；
It is described control the first power supply out-put supply to the first welding wire be specially：
Bridge arm electronic switch and the second lower bridge arm electronic switch on described first is controlled to open, bridge arm in control described second
Electronic switch and the shutdown of the first lower bridge arm electronic switch；
It is described to be specially by power supply switching output to the second welding wire exported to the first welding wire：
Bridge arm electronic switch and the shutdown of the second lower bridge arm electronic switch on described first are controlled, controls bridge arm on described second
Electronic switch and the first lower bridge arm electronic switch are opened.
Preferably, the governor circuit is specially for determining the first welding wire arcing stabilization：
The voltage of the first power supply is detected, and when the voltage for determining the first power supply is in preset voltage range, it is determined that
First welding wire arcing is stablized.
Preferably, the determining second source electric current is constant specifically includes：
The electric current of second source is detected, and when the electric current for determining second source is in preset electric current section, it is determined that
Second source electric current is constant.
Preferably, the governor circuit is more than 1.5 for controlling the speed that the second welding wire performs wire feed operation to workpiece
M/min, less than 24 ms/min.
In addition, to achieve these goals, the present invention also provides a kind of striking control method of polymorphic double wire welding device,
The striking control method of the polymorphic double wire welding device includes the following steps：
Prepare the first welding wire and the second welding wire on the welding gun of polymorphic double wire welding device；
Polymorphic double wire welding device is when receiving welding instruction, out-put supply to the first welding wire, and controls the first welding wire
Wire feed operation is performed to workpiece, so that the first welding wire ignites when being contacted with workpiece, and forms ionized space；
Determine the first welding wire arcing stablize after, control the second welding wire to workpiece perform wire feed operation, make the second welding wire with
The ionized space of first welding wire contacts to form ionization circuit；
When determining that source current is constant, the power supply switching output to the first welding wire will be exported to the second welding wire, to ignite
Second welding wire completes mariages starting the arc action.
Preferably, it is described to determine that the first welding wire arcing stabilization specifically includes：
When the supply voltage for determining polymorphic double wire welding device is in preset voltage range, it is determined that the first welding wire fires
Arc is stablized.
Preferably, the determining source current is constant specifically includes：
When the source current for determining polymorphic double wire welding device is in preset electric current section, it is determined that source current is permanent
It is fixed.
Preferably, the second welding wire of the control performs wire feed operation to workpiece and includes：
The second welding wire is controlled to perform wire feed operation to workpiece with the first pre-set velocity, first pre-set velocity is more than 1.5
M/min, and less than 24 ms/min.
Then the present invention controls the first weldering by welding, first, controlling the first power supply out-put supply to the first welding wire
Silk performs wire feed operation to workpiece, so that the first welding wire ignites when being contacted with workpiece, and forms ionized space；Determining the first weldering
After silk arcing is stablized, the second welding wire of control performs wire feed operation to workpiece, connects the ionized space of the second welding wire and the first welding wire
It touches and forms ionization circuit, and when determining that second source electric current is constant, the power supply exported to the first welding wire is switched into output extremely
Second welding wire with second welding wire that ignites, completes mariages starting the arc action.In this way, during the starting the arc, it is same to avoid two root wires
When contacted with workpiece and moment generates larger uncontrollable short circuit current, avoid to occur during the welding wire starting the arc in this way
The problem of welding wire is quick-fried disconnected.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Structure according to these attached drawings obtains other attached drawings.
Fig. 1 is the schematic equivalent circuit of polymorphic double wire welding device in the prior art；
Fig. 2 is the welding starting the arc step schematic diagram of polymorphic double wire welding device in the prior art；
Fig. 3 is the high-level schematic functional block diagram of the polymorphic double wire welding device of the present invention；
Fig. 4 is the electrical block diagram of the polymorphic double wire welding device of the present invention；
Fig. 5 is the welding starting the arc step schematic diagram of the polymorphic double wire welding device of the present invention；
The flow diagram of the striking control method of the polymorphic double wire welding device of Fig. 6 present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The present invention provides a kind of polymorphic double wire welding device, and the starting the arc stage for being mainly used for solving in welding process often goes out
The problem of now welding wire is quick-fried disconnected.
With reference to Fig. 3 to Fig. 5, in one embodiment, which includes：Welding gun 50, the first power supply 100,
Second source 200, governor circuit 300, wire feeding circuit 400 and full bridge inverter 500, wherein, for installing the on welding gun 50
One welding wire L1 and the second welding wire L2；The governor circuit 300 is used to control the bridge arm of the full bridge inverter 500 to switch shape
State；The full bridge inverter 500 is used under the control of the governor circuit 300 according to first power supply 100 and second
The electric current that power supply 200 exports corresponds to the welding wire electric current and welding current for adjusting the first welding wire L1 and the second welding wire L2；It is described
Wire feeding circuit 400 drives welding gun 50 to 700 wire feed of workpiece under the control of the governor circuit 300, to be welded to workpiece 700
It connects.It should be noted that 50 quantity of welding gun is two, and it is respectively to install the first welding gun of the first welding wire L1 and installing institute
State the second welding gun of the second welding wire L2.
In the present embodiment, the governor circuit 300 is used for：When receiving welding instruction, the first power supply 100 of control exports
Power supply controls the first welding wire L1 to perform wire feed operation to workpiece 700 to the first welding wire L1, so that the first welding wire L1 and workpiece
It ignites, and form ionized space during 700 contact；After determining that the first welding wire L1 arcings are stablized, the second welding wire L2 is controlled to workpiece
700 perform wire feed operation, and the second welding wire L2 is made to contact to form ionization circuit with the ionized space of the first welding wire L1；Determining second
When 200 electric current of power supply is constant, the power supply switching output to the first welding wire L1 will be exported to the second welding wire L2, with second welding wire that ignites
L2 completes mariages starting the arc action, wherein, when exporting the power supply to the power supply time of the first welding wire L1 and output to the first welding wire L1
Between it is the same, i.e., understood in the period same, export the power phase to the power supply of the first welding wire L1 and output to the second welding wire L2
Differ 180 degree.
Specifically, the welding starting the arc principle of the present invention is described in detail below in conjunction with Fig. 4, first, on welding gun 50
Prepare two root wire L1 and L2, original state as shown in Figure 4 first send a wherein root wire L1, such as Step 1, allow welding wire L1 with
Workpiece 700 is short-circuit and generates high current I1, welding wire L1 is made to ignite, welding wire L2 and L1 cannot be formed into a loop at this time, therefore without Im
Electric current, such as Step 2.Then, by controlling I1 electric currents that L1 is made to enter stable arcing state, then L2 welding wires are sent to workpiece 700
Silk, may be used low speed, and such as Step 3, when welding wire touches the electric arc of L1 formation, L1 and L2 can form ionization circuit,
Im electric currents are formed at this time, and ionize that circuit is more much larger than short-circuit loop impedance, and therefore, Im electric currents, which were easy to control, to be generated
The high current of punching and quick-fried disconnected welding wire, at this point, after 200 electric current of second source is constant, cut exporting to the power supply of the first welding wire L1
Output is changed to the second welding wire L2, with the second welding wire L2 that ignites, in this way, just realizing the double wire welding starting the arc, such mode is also referred to as
Arc technique is picked up for three arc welding of mariages.It is understood that due to during the starting the arc, avoid two root wires simultaneously with
Workpiece 700 contacts and moment generates larger uncontrollable short circuit current, avoids to occur during the welding wire starting the arc in this way
The problem of welding wire is quick-fried disconnected.
In an alternative embodiment, first power supply 100 is constant-voltage DC source, and the second source 200 is constant current
DC power supply can so improve the stability of welding, improve arcing effect.
In the present embodiment, optionally, the full bridge inverter 500 is included on first under bridge arm electronic switch K1, first
Bridge arm electronic switch K3, bridge arm electronic switch K2 and the second lower bridge arm electronic switch K4 on second, bridge arm electronics on described first
Switch K1 and second on bridge arm electronic switch K2 first end with the anode of the constant-voltage DC source and the constant-current dc
The anode connection of power supply；The second end of bridge arm electronic switch K1 and the first end of the first lower bridge arm electronic switch K3 on described first
Interconnection, and connect with the first welding gun 50；The second end of bridge arm electronic switch K2 and the second lower bridge arm electronic cutting on described second
The first end interconnection of K4 is closed, is connect with the second welding gun 50；Bridge arm electronic switch K2 and the second lower bridge arm electronics on described second
Cathode of the second end of K4 with the constant-voltage DC source is switched to connect；On described first under bridge arm electronic switch K1, first
Bridge arm electronic switch K3, on second the controlled end of bridge arm electronic switch K2 and the second lower bridge arm electronic switch K4 with the master control
Circuit 300 connects；The cathode of the constant-current dc power supply is connect with welding workpiece 700.
In the present embodiment, control 100 out-put supply of the first power supply to the first welding wire L1 is specially：Control described first
Upper bridge arm electronic switch K1 and the second lower bridge arm electronic switch K4 is opened, bridge arm electronic switch K2 and first in control described second
Lower bridge arm electronic switch K3 is turned off.When bridge arm electronic switch K1 and the second lower bridge arm electronic switch K4 is opened on first, the first electricity
100 out-put supply of source supplies the first welding wire L1.
In the present embodiment, described will export to the power supply switching output of the first welding wire L1 is specially to the second welding wire L2：Control
Bridge arm electronic switch K1 and the second lower bridge arm electronic switch K4 shutdowns on described first are made, control bridge arm electronic cutting on described second
K2 and the first lower bridge arm electronic switch K3 is closed to open.Bridge arm electronic switch K1 and the second lower bridge arm electronic switch K4 shutdowns on first
When, it exports to the power supply of the first welding wire L1 and is cut off, bridge arm electronic switch K2 and the first lower bridge arm electronic switch K3 are beaten on second
When opening, the power supply of the first power supply 100 output supplies the second welding wire L2.
Starting the arc control principle based on the present embodiment is, will first send L1 welding wires by wire feeding circuit 400 when welding machine works,
The first power supply 100 and second source 200 is made to send out wave simultaneously, switchs K1 and K4 conductings.When L1 welding wires touch workpiece, the first electricity
Source 100 is formed into a loop, and L1 welding wires ignite arc similar to common gas shield welding operation principle at this time, since L1 and L2 fails to be formed back
Road, therefore second source 200 is without output.After detecting that L1 welding wires arcing is stablized, we control L2 to weld by wire feeding circuit 400
Silk wire feed, second source 200 is formed into a loop when L2 welding wires penetrate L1 electric arcs, and M arcs are generated between two silks.When detect second electricity
Source 200 has after stabling current, it is believed that system steady operation at this point, controllable switch K2 and K3 are connected, switchs K1 and K4
Shutdown switches the first power supply 100 and powers to welding wire L2, makes welding wire L2 arcings, in this way, just realizing the mariages starting the arc.
In the present embodiment, optionally, the governor circuit 300 is specially for determining the first welding wire L1 arcings stabilization：
The voltage of the first power supply 100 is detected, and when the voltage for determining the first power supply 100 is in preset voltage range,
Then determine that the first welding wire L1 arcings are stablized.It should be noted that arc length is proportional with voltage, by detecting the first power supply 100
Voltage just knows the length of striking, so as to further judge whether arcing is stablized.Wherein, preset voltage range
The substantial distance of striking when corresponding arcing is stablized.
In the present embodiment, optionally, 200 electric current of second source is constant to be specifically included：
The electric current of second source 200 is detected, and when the electric current for determining second source 200 is in preset electric current section,
Then 200 electric current of second source is constant.It is understood that the second welding wire L2 is in the ionized space of the first welding wire L1 arcings formation
When, electric current is formed on the second welding wire L2, since second source 200 is constant-current supply, after arcing stabilization, is no longer fluctuated by arcing
It influencing, the electric current of second source 200 will gradually tend to be constant, at this point, the second welding wire L2 arcings of control, electric current are easy to control,
It will not quick-fried disconnected striking.Wherein, preset voltage range corresponds to the electric current of second source 200 when arcing is stablized.
In the present embodiment, optionally, the governor circuit 300 performs wire feed for the second welding wire L2 of control to workpiece 700
The speed of operation is more than 1.5 ms/min, less than 24 ms/min.It should be noted that speed is slower, the second welding wire L2 is connecing
During the ionized space of nearly first welding wire L1, electric current is more stable, is less susceptible to that quick-fried disconnected striking occurs.
The present invention also provides a kind of striking control method of polymorphic double wire welding device, wherein, polymorphic double wire welding device
It can be the hardware components of above-mentioned polymorphic double wire welding device, can also be the polymorphic Double Wire Welding of other different hardware structures certainly
Connection device does not limit herein.
With reference to Fig. 3 to Fig. 6, in one embodiment, the striking control method of the polymorphic double wire welding device includes following step
Suddenly：
Step S10 prepares the first welding wire L1 and the second welding wire L2 on the welding gun 50 of polymorphic double wire welding device；
Step S20, polymorphic double wire welding device when receiving welding instruction, to the first welding wire L1 control by out-put supply
It makes the first welding wire L1 and performs wire feed operation to workpiece 700, so that the first welding wire L1 ignites, and form electricity when being contacted with workpiece 700
From region；
Step S30, after determining that the first welding wire L1 arcings are stablized, the second welding wire L2 of control performs wire feed behaviour to workpiece 700
Make, the second welding wire L2 is made to contact to form ionization circuit with the ionized space of the first welding wire L1；
Step S40 when determining that source current is constant, will be exported to the power supply switching of the first welding wire L1 and be exported to the second weldering
Silk L2 with the second welding wire L2 that ignites, completes mariages starting the arc action.
In the present embodiment, the power supply time one to the power supply time of the first welding wire L1 and output to the first welding wire L1 is exported
Sample is understood same in the period, export to the power supply of the first welding wire L1 and differed with the power phase exported to the second welding wire L2
180 degree.
Specifically, the welding starting the arc principle of the present invention is described in detail below in conjunction with Fig. 2, first, on welding gun 50
Prepare two root wire L1 and L2, original state as shown in Figure 2 first send a wherein root wire L1, such as Step 1, allow welding wire L1 with
Workpiece 700 is short-circuit and generates high current I1, welding wire L1 is made to ignite, welding wire L2 and L1 cannot be formed into a loop at this time, therefore without Im
Electric current, such as Step 2.Then, by controlling I1 electric currents that L1 is made to enter stable arcing state, then L2 welding wires are sent to workpiece 700
Silk, may be used low speed, and such as Step 3, when welding wire touches the electric arc of L1 formation, L1 and L2 can form ionization circuit,
Im electric currents are formed at this time, and ionize that circuit is more much larger than short-circuit loop impedance, and therefore, Im electric currents, which were easy to control, to be generated
The high current of punching and quick-fried disconnected welding wire, at this point, after 200 electric current of second source is constant, cut exporting to the power supply of the first welding wire L1
Output is changed to the second welding wire L2, with the second welding wire L2 that ignites, in this way, just realizing the double wire welding starting the arc, such mode is also referred to as
Arc technique is picked up for three arc welding of mariages.It is understood that due to during the starting the arc, avoid two root wires simultaneously with
Workpiece 700 contacts and moment generates larger uncontrollable short circuit current, avoids to occur during the welding wire starting the arc in this way
The problem of welding wire is quick-fried disconnected.
It is optionally, described to determine that the first welding wire L1 arcings stabilization specifically includes in the present embodiment：
When the supply voltage for determining polymorphic double wire welding device is in preset voltage range, it is determined that the first welding wire L1
Arcing is stablized.It should be noted that arc length is proportional with voltage, is just known by the voltage for detecting the first power supply 100 and drawn
The length of arc, so as to further judge whether arcing is stablized.Wherein, preset voltage range is corresponded to when arcing is stablized and is drawn
The substantial distance of arc.
In the present embodiment, optionally, the determining source current is constant to be specifically included：
When the source current for determining polymorphic double wire welding device is in preset electric current section, it is determined that source current is permanent
It is fixed.It is understood that when the second welding wire L2 is in the ionized space of the first welding wire L1 arcings formation, formed on the second welding wire L2
Electric current, since second source 200 is constant-current supply, after arcing stabilization, no longer by arcing influence of fluctuations, second source 200
Electric current will gradually tend to be constant, at this point, the second welding wire L2 arcings of control, electric current are easy to control, it will not quick-fried disconnected striking.Wherein,
Preset voltage range corresponds to the electric current of second source 200 when arcing is stablized.
In an alternative embodiment, the second welding wire L2 of the control performs wire feed operation to workpiece 700 and includes：
The second welding wire L2 is controlled to perform wire feed operation to workpiece 700 with the first pre-set velocity, first pre-set velocity is big
In 1.5 ms/min, and less than 24 ms/min.It should be noted that speed is slower, the second welding wire L2 is close to the first welding wire L1
Ionized space when, electric current is more stable, is less susceptible to that quick-fried striking occurs.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow shift that bright specification and accompanying drawing content are made directly or indirectly is used in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of polymorphic double wire welding device, which is characterized in that the polymorphic double wire welding device includes welding gun, the first power supply, the
Two power supplys, governor circuit, wire feeding circuit and full bridge inverter, wherein, for the first welding wire of installing and the second welding wire on welding gun；
The governor circuit is used to control the bridge arm on off state of the full bridge inverter；The full bridge inverter is used for described
It is corresponded under the control of governor circuit according to the electric current that first power supply and second source export and adjusts first welding wire and the
The welding wire electric current and welding current of two welding wires；The wire feeding circuit drives welding gun to be sent to workpiece under the control of the governor circuit
Silk, to be welded to workpiece；
The governor circuit is used for：
When receiving welding instruction, the first power supply out-put supply of control controls the wire feeding circuit by the to the first welding wire
One welding wire performs wire feed operation to workpiece, so that the first welding wire ignites when being contacted with workpiece, and forms ionized space；
After determining that the first welding wire arcing is stablized, control the wire feeding circuit that the second welding wire is performed wire feed operation to workpiece, make
Second welding wire contacts to form ionization circuit with the ionized space of the first welding wire；
When determining that second source electric current is constant, the power supply switching output to the first welding wire will be exported to the second welding wire, to ignite
Second welding wire completes mariages starting the arc action.
2. polymorphic double wire welding device as described in claim 1, which is characterized in that first power supply is constant voltage DC electricity
Source, the second source are constant-current dc power supply.
3. polymorphic double wire welding device as claimed in claim 2, which is characterized in that the welding gun quantity is two, and respectively
To install the first welding gun of first welding wire and installing the second welding gun of second welding wire；The full bridge inverter includes
Bridge arm electronic switch on first, the first lower bridge arm electronic switch, bridge arm electronic switch and the second lower bridge arm electronic switch on second,
Anode of the first end of bridge arm electronic switch with the constant-voltage DC source on bridge arm electronic switch and second on described first
It is connected with the anode of the constant-current dc power supply；The second end of bridge arm electronic switch and the first lower bridge arm electronic cutting on described first
The first end interconnection of pass, and connect with the first welding gun；The second end of bridge arm electronic switch and the second lower bridge arm on described second
The first end interconnection of electronic switch, connect with the second welding gun；Bridge arm electronic switch and the second lower bridge arm electronics on described second
Cathode of the second end of switch with the constant-voltage DC source is connect；Bridge arm electronic switch, the first lower bridge arm on described first
Electronic switch, the controlled end of bridge arm electronic switch and the second lower bridge arm electronic switch is connect with the governor circuit on second；
The cathode of the constant-current dc power supply is connect with welding workpiece；
It is described control the first power supply out-put supply to the first welding wire be specially：
Bridge arm electronic switch and the second lower bridge arm electronic switch on described first is controlled to open, bridge arm electronics in control described second
Switch and the shutdown of the first lower bridge arm electronic switch；
It is described to be specially by power supply switching output to the second welding wire exported to the first welding wire：
Bridge arm electronic switch and the shutdown of the second lower bridge arm electronic switch on described first are controlled, controls bridge arm electronics on described second
Switch and the first lower bridge arm electronic switch are opened.
4. polymorphic double wire welding device as claimed in claim 2, which is characterized in that the governor circuit is used to determine the first weldering
Silk arcing, which is stablized, is specially：
The voltage of the first power supply is detected, and when the voltage for determining the first power supply is in preset voltage range, it is determined that first
Welding wire arcing is stablized.
5. polymorphic double wire welding device as claimed in claim 2, which is characterized in that the determining constant tool of second source electric current
Body includes：
The electric current of second source is detected, and when the electric current for determining second source is in preset electric current section, it is determined that second
Source current is constant.
6. the polymorphic double wire welding device as described in claim 1 to 5 any one, which is characterized in that the governor circuit is used
It is more than 1.5 ms/min, less than 24 ms/min in controlling the speed that the second welding wire performs wire feed operation to workpiece.
7. a kind of striking control method of polymorphic double wire welding device, which is characterized in that the polymorphic double wire welding device rises
Arc control method includes the following steps：
Prepare the first welding wire and the second welding wire on the welding gun of polymorphic double wire welding device；
Polymorphic double wire welding device is when receiving welding instruction, out-put supply to the first welding wire, and controls the first welding wire to work
Part performs wire feed operation, so that the first welding wire ignites when being contacted with workpiece, and forms ionized space；
After determining that the first welding wire arcing is stablized, the second welding wire of control performs wire feed operation to workpiece, makes the second welding wire and first
The ionized space of welding wire contacts to form ionization circuit；
When determining that source current is constant, the power supply switching output to the first welding wire will be exported to the second welding wire, to ignite second
Welding wire completes mariages starting the arc action.
8. the striking control method of polymorphic double wire welding device as claimed in claim 7, which is characterized in that described to determine first
Welding wire arcing stabilization specifically includes：
When the supply voltage for determining polymorphic double wire welding device is in preset voltage range, it is determined that the first welding wire arcing is steady
It is fixed.
9. the striking control method of polymorphic double wire welding device as claimed in claim 7, which is characterized in that the determining power supply
Electric current is constant to be specifically included：
When the source current for determining polymorphic double wire welding device is in preset electric current section, it is determined that source current is constant.
10. the striking control method of the polymorphic double wire welding device as described in any one of claim 7 to 9, which is characterized in that
The second welding wire of the control performs wire feed operation to workpiece and includes：
The second welding wire is controlled to perform wire feed operation to workpiece with the first pre-set velocity, first pre-set velocity is more than 1.5 ms/min
Clock, and less than 24 ms/min.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3722036A1 (en) * | 2019-04-10 | 2020-10-14 | FRONIUS INTERNATIONAL GmbH | Multiple welding method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102161125A (en) * | 2010-02-22 | 2011-08-24 | 株式会社神户制钢所 | Arc-starting method for multi-electrode single-side welding device and multi-electrode single-side welding device |
| CN102248253A (en) * | 2011-06-23 | 2011-11-23 | 山东奥太电气有限公司 | Arc ignition cooperation control method for twin-wire welding device system |
| CN103341681A (en) * | 2013-06-26 | 2013-10-09 | 哈尔滨工业大学 | Multi-state double-wire electrical arc welding device and welding method |
| CN103521885A (en) * | 2013-09-25 | 2014-01-22 | 北京工业大学 | Welding method with indirect arc between double welding wires alternately changed to form by-pass arc |
| CN104057182A (en) * | 2014-04-17 | 2014-09-24 | 深圳市瑞凌实业股份有限公司 | Power supply device for realizing double-wire three-arc welding |
| CN104203474A (en) * | 2012-03-29 | 2014-12-10 | 弗罗纽斯国际有限公司 | Welding device having two welding torches and control unit for starting the arc ignition process, and welding method for welding with two welding processes under an adapted starting process |
-
2017
- 2017-12-08 CN CN201711305494.4A patent/CN108176915B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102161125A (en) * | 2010-02-22 | 2011-08-24 | 株式会社神户制钢所 | Arc-starting method for multi-electrode single-side welding device and multi-electrode single-side welding device |
| CN102248253A (en) * | 2011-06-23 | 2011-11-23 | 山东奥太电气有限公司 | Arc ignition cooperation control method for twin-wire welding device system |
| CN104203474A (en) * | 2012-03-29 | 2014-12-10 | 弗罗纽斯国际有限公司 | Welding device having two welding torches and control unit for starting the arc ignition process, and welding method for welding with two welding processes under an adapted starting process |
| CN103341681A (en) * | 2013-06-26 | 2013-10-09 | 哈尔滨工业大学 | Multi-state double-wire electrical arc welding device and welding method |
| CN103521885A (en) * | 2013-09-25 | 2014-01-22 | 北京工业大学 | Welding method with indirect arc between double welding wires alternately changed to form by-pass arc |
| CN104057182A (en) * | 2014-04-17 | 2014-09-24 | 深圳市瑞凌实业股份有限公司 | Power supply device for realizing double-wire three-arc welding |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3722036A1 (en) * | 2019-04-10 | 2020-10-14 | FRONIUS INTERNATIONAL GmbH | Multiple welding method |
| WO2020208020A1 (en) | 2019-04-10 | 2020-10-15 | Fronius International Gmbh | Multiple welding method |
| CN113677471A (en) * | 2019-04-10 | 2021-11-19 | 弗罗纽斯国际有限公司 | Multiple welding process |
| JP2022527586A (en) * | 2019-04-10 | 2022-06-02 | フロニウス・インテルナツィオナール・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | Double welding method |
| JP7181422B2 (en) | 2019-04-10 | 2022-11-30 | フロニウス・インテルナツィオナール・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング | Double welding method |
| CN113677471B (en) * | 2019-04-10 | 2023-02-17 | 弗罗纽斯国际有限公司 | Method and welding device for carrying out multiple welding processes |
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