CN105728899B - Pulse welding equipment and its control method - Google Patents
Pulse welding equipment and its control method Download PDFInfo
- Publication number
- CN105728899B CN105728899B CN201610195204.4A CN201610195204A CN105728899B CN 105728899 B CN105728899 B CN 105728899B CN 201610195204 A CN201610195204 A CN 201610195204A CN 105728899 B CN105728899 B CN 105728899B
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- instruction
- wire feed
- moment
- feed rate
- pulse
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/09—Arrangements or circuits for arc welding with pulsed current or voltage
-
- 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
- B23K9/095—Monitoring or automatic control of welding parameters
- B23K9/0953—Monitoring or automatic control of welding parameters using computing means
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/18—Sheet panels
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Theoretical Computer Science (AREA)
- Arc Welding Control (AREA)
Abstract
The present invention provides a kind of pulse welding equipment and its control method.The pulse welding equipment includes the source of welding current and wire feeding motor, it is characterised in that also include：Main weldering connects instruction wire feed rate acquiring unit, instruction wire feed rate of flashing back computing unit, the instruction current computing unit that flashes back, flash back command voltage computing unit and control unit.The present invention molten bulb diameter to be formed that can make to flash back is optimal scope, so as to be conducive to the striking operation welded next time.
Description
[technical field]
The present invention relates to welding field, more particularly to a kind of welding equipment that is welded of use pulse welding mode and its
Control method.
[background technology]
Welding equipment (also referred to as welding machine) is widely used to all kinds of manufacturing industry.Welding equipment is different according to its welding manner,
Two kinds of short circuiting transfer and pulse welding can be divided into.Pulse welding has an electric arc pinch effect, and electric arc is concentrated, and it is excellent that deflection is good etc.
Point, thus be widely used in plate sheet welding (such as welding of stainless steel, steel and titanium non-ferrous metal).Hereinafter, pulse will be used
The welding equipment that mode is welded is referred to as pulse welding equipment.Pulse welding equipment includes the source of welding current and with wire feeding motor
Wire feeder.
Generally, the quality for performance of flashing back, can have a huge impact to striking performance.Passed through according to pertinent literature and welding
Test, if material is carbon steel, the molten bulb diameter to be formed that flashes back is preferably 1.1~1.3 times of gage of wire；If material is not
Become rusty steel, then the molten bulb diameter to be formed that flashes back is preferably 0.9~1.0 times of gage of wire, excessive or too small striking can all be produced
Raw harmful effect.
Existing processing mode of flashing back is：Arc welding gun switch is disconnected after the completion of welding, into the stage of flashing back, now to wire feed speed
Degree is uncontrolled, be allowed to it is random successively decrease, until being decremented to zero, then a chop pulse is exported, into chop processing.
Therefore, during actual welding, using above-mentioned processing mode of flashing back, the diameter of the molten ball ultimately formed is often not
Meet standard, cause the effect of next striking bad.
Therefore, in the market expects that the stage of flashing back of existing pulse welding power supply is improved, to realize that preferably molten ball is straight
Footpath, so as to be conducive to next striking.
[content of the invention]
[technical problem]
It is contemplated that for existing pulse welding equipment exist the molten bulb diameter to be formed that flashes back it is not up to standard the problem of, carry
For a kind of pulse welding equipment and its control method.
[solution]
The present invention provides a kind of pulse welding equipment, and it includes the source of welding current and wire feeding motor, it is characterised in that also wrap
Include：Main weldering connects instruction wire feed rate acquiring unit, determines that main weldering connects instruction wire feed for the welding parameter inputted according to user
Speed；Flash back instruction wire feed rate computing unit, instructs wire feed rate and predetermined deceleration to accelerate for being connect according to the main weldering
Degree, to calculate the instruction wire feed rate of flashing back at each moment from arc welding gun switch disconnects the moment；Flash back instruction current computing unit, uses
In the preset current and the deceleration acceleration that are inputted according to user, to calculate each moment from the arc welding gun switch disconnects the moment
The instruction current that flashes back.
The pulse welding equipment also includes：Flash back command voltage computing unit, for the preset electricity inputted according to user
Pressure and the deceleration acceleration, to calculate the command voltage that flashes back at each moment from arc welding gun switch disconnects the moment；And control is single
Member, for disconnecting the moment from the arc welding gun switch, control wire feeding motor flashes back instruction wire feed rate to be sent based on described in
Silk, at the same control the source of welding current flashed back based on described in instruction current and it is described command voltage is flashed back to be exported, and described
When instruction wire feed rate of flashing back reaches predetermined threshold, the wire feeding motor is controlled to stop wire feed, while controlling the source of welding current
Output chop pulse.
The present invention also provides a kind of control method of pulse welding equipment, the pulse welding equipment include the source of welding current and
Wire feeding motor, it is characterised in that the control method comprises the following steps：The welding parameter that is inputted according to user determines main weldering
Connect instruction wire feed rate；Instruction wire feed rate and predetermined deceleration acceleration are connect according to the main weldering, to calculate from arc welding gun switch
The instruction wire feed rate of flashing back at each moment from the disconnection moment；The preset current inputted according to user and the deceleration acceleration, come
Calculate the instruction current that flashes back at each moment from the arc welding gun switch disconnects the moment.
The control method also comprises the following steps：The preset voltage and the deceleration acceleration inputted according to user, comes
Calculate the command voltage that flashes back at each moment from the arc welding gun switch disconnects the moment；And disconnect the moment from the arc welding gun switch
Rise, control wire feeding motor flashes back instruction wire feed rate to carry out wire feed based on described in, while controlling the source of welding current to be based on described return
Burn instruction current and it is described command voltage is flashed back to be exported, and it is described flash back instruction wire feed rate reach predetermined threshold
When, control the wire feeding motor to stop wire feed, while controlling the source of welding current output chop pulse.
[invention beneficial effect]
The present invention is by above-mentioned technical proposal, and the molten bulb diameter to be formed that can make to flash back is optimal scope, so that favorably
In the striking operation of welding next time.
[brief description of the drawings]
Fig. 1 is the software architecture diagram of the pulse welding equipment of the present invention.
Fig. 2 is the control flow chart of the pulse welding equipment of the present invention.
Fig. 3 be the present invention pulse welding equipment in the corresponding relation figure that changes over time of instruction wire feed rate.
Fig. 4 is the corresponding relation figure that the instruction current that flashes back of the invention is changed over time.
Fig. 5 is the corresponding relation figure that the command voltage that flashes back of the invention is changed over time.
[embodiment]
The embodiment to the present invention is illustrated below in conjunction with the accompanying drawings.
First, the basic welding process to the pulse welding equipment of the present invention is described.In welding, arteries and veins is connected first
Welding equipment (including the source of welding current and wire feeder with wire feeding motor) is rushed, user inputs various welding by guidance panel
Parameter, such as material, gas, string diameter, preset current, preset voltage.Afterwards, user presses arc welding gun switch, and now welding is set
It is standby to enter the striking stage, meanwhile, source of welding current control wire feeder starts wire feed.When wire feed rate reaches predetermined value, welding
Equipment control connects the stage into main weldering.Afterwards, when user disconnects arc welding gun switch, welding equipment control, which enters, flashes back the stage.This hair
The bright improvement exactly to the stage control that flashes back.
User presses the process that arc welding gun switch is welded repeatedly, exactly repeats the process in each above-mentioned stage.The present invention
Control method can perform corresponding program realize by the controller of pulse welding equipment.
Further, since the present invention is the improvement to pulse welding device interior control program (software), therefore omit herein
The description constituted to the hardware of pulse welding equipment.
[first embodiment]
Embodiments of the invention are described referring to Fig. 1 to Fig. 5.Fig. 1 shows the soft of the pulse welding equipment of the present invention
Part structure.
As shown in figure 1, the pulse welding equipment of the present invention includes：Main weldering connects instruction wire feed rate acquiring unit, for root
Inputted according to user welding parameter (including：Material, string diameter, gas and preset current) determine that main weldering connects instruction wire feed rate；
Flash back instruction wire feed rate computing unit, for connecing instruction wire feed rate and predetermined deceleration acceleration according to the main weldering, comes
Calculate the instruction wire feed rate of flashing back at each moment from arc welding gun switch disconnects the moment；Flash back instruction current computing unit；For root
The preset current inputted according to user and the deceleration acceleration, to calculate each moment from the arc welding gun switch disconnects the moment
The instruction current that flashes back.
The pulse welding equipment of the present invention also includes：Flash back command voltage computing unit, for the institute inputted according to user
Preset voltage and the deceleration acceleration are stated, to calculate the command voltage that flashes back at each moment from arc welding gun switch disconnects the moment；With
And control unit, for disconnecting the moment from the arc welding gun switch, control wire feeding motor is based on the instruction wire feed rate of flashing back
To carry out wire feed, at the same control the source of welding current flashed back based on described in instruction current and it is described command voltage is flashed back to be exported,
And when the instruction wire feed rate of flashing back reaches predetermined threshold, control the wire feeding motor to stop wire feed, while control is described
Source of welding current output chop pulse.
Next, reference picture 2 describes the controlling party in the pulse welding equipment striking stage of first embodiment of the invention to Fig. 5
Method.The control method is as the corresponding software of modules shown in the controller (CPU) of pulse welding equipment is performed with Fig. 1
Program is realized.
As shown in Fig. 2 first, in step s 201, welding parameter that CPU is inputted according to user (including material, string diameter,
Gas and preset current) determine that main weldering connects instruction wire feed rate.Material, string diameter, gas and preset current can pass through weldering
The guidance panel of equipment is connect to input.Main weldering connects instruction wire feed rate and welding parameter (including material, string diameter, gas and preset
Electric current) corresponding relation can be prestored in memory as table.In the present embodiment, the table is stored in pulse welding and set
In standby internal storage (such as FLASH or ROM), but the invention is not restricted to this, it can be stored in external memory storage.
Then, in step S202, CPU connects instruction wire feed rate and predetermined deceleration acceleration according to the main weldering, comes
Calculate the instruction wire feed rate of flashing back at each moment from arc welding gun switch disconnects the moment.The deceleration acceleration can connect according to main weldering
The difference of wire feed rate, is neatly adjusted.It is preferred that, the scope of the deceleration acceleration is 0.2 to 1.As shown in figure 3, described refer to
Wire feed rate is made to successively decrease according to predetermined deceleration acceleration since main weldering connects instruction wire feed rate.
Then, in step S203, the preset current and the deceleration acceleration that CPU is inputted according to user, to count
Calculate the instruction current that flashes back at each moment from the arc welding gun switch disconnects the moment.As shown in figure 4, it is described flash back instruction current also by
Successively decrease according to the deceleration acceleration since main weldering connects instruction current (i.e. preset current).
Then, in step S204, the preset voltage and the deceleration acceleration that CPU is inputted according to user, to count
Calculate the command voltage that flashes back at each moment from arc welding gun switch disconnects the moment.As shown in figure 5, the command voltage that flashes back is also according to institute
Deceleration acceleration is stated since main weldering connects command voltage (i.e. preset voltage) to successively decrease.
Afterwards, in step S205, as shown in Figures 3 to 5, CPU is controlled as follows：When being disconnected from the arc welding gun switch
Carve (T1 moment), control wire feeding motor flashes back instruction wire feed rate to carry out wire feed based on described in, while controlling the source of welding current
Based on it is described flash back instruction current and it is described flash back command voltage and exported, and reached in the instruction wire feed rate of flashing back
During predetermined threshold (T2 moment), control wire feeding motor stops wire feed, while controlling source of welding current output chop pulse.As excellent
Select, the 20% to 50% of welding instruction wire feed rate based on the scope of the predetermined threshold.
The quantity and the difference of prior art of the chop pulse of the present invention, it can be multiple.It can effectively eliminate one
After secondary chop, the excessive situation of bulb diameter is melted.
By above-mentioned technical proposal, the molten bulb diameter to be formed that can make to flash back is optimal scope, so as to be conducive to next time
The striking operation of welding.
More than, with reference to detailed or specific embodiment, the present invention is described, but those skilled in the art manage
Solution, can carry out various changes and amendment on the premise of the thought and scope of the present invention is not departed from.For example, can be to above-mentioned step
Rapid S203 and S204 order is adjusted, and first carries out step S204, then carry out step S203.
[industrial applicibility]
Present invention can apply in existing pulse welding equipment, make to flash back, the molten bulb diameter to be formed is optimal
Scope, so as to be conducive to the striking operation welded next time.
Claims (8)
1. a kind of pulse welding equipment, it includes the source of welding current and wire feeding motor, it is characterised in that also include：
Main weldering connects instruction wire feed rate acquiring unit, determines that main weldering connects instruction wire feed for the welding parameter inputted according to user
Speed；
Flash back instruction wire feed rate computing unit, instructs wire feed rate and predetermined deceleration to accelerate for being connect according to the main weldering
Degree, to calculate the instruction wire feed rate of flashing back at each moment from arc welding gun switch disconnects the moment；
Flash back instruction current computing unit, for the preset current inputted according to user and the deceleration acceleration, come calculate from
The arc welding gun switch disconnects the instruction current that flashes back at each moment from the moment；
Flash back command voltage computing unit, for the preset voltage and the deceleration acceleration inputted according to user, come calculate from
The arc welding gun switch disconnects the command voltage that flashes back at each moment from the moment；And
Control unit, for disconnecting the moment from the arc welding gun switch, controls the wire feeding motor to be based on the instruction of flashing back and send
Silk speed carries out wire feed, at the same control the source of welding current be based on it is described flash back instruction current and it is described flash back command voltage come
Exported, and when the instruction wire feed rate of flashing back reaches predetermined threshold, control the wire feeding motor to stop wire feed, simultaneously
Control the source of welding current output chop pulse.
2. pulse welding equipment according to claim 1, it is characterised in that the scope of the deceleration acceleration be 0.2 to
1。
3. pulse welding equipment according to claim 1 or 2, it is characterised in that the scope of the predetermined threshold is described
Main weldering connects the 20% to 50% of instruction wire feed rate.
4. pulse welding equipment according to claim 1, it is characterised in that the number of the chop pulse is multiple.
5. a kind of control method of pulse welding equipment, the pulse welding equipment includes the source of welding current and wire feeding motor, it is special
Levy and be：The control method comprises the following steps：
The welding parameter inputted according to user determines that main weldering connects instruction wire feed rate；
Instruction wire feed rate and predetermined deceleration acceleration are connect according to the main weldering, it is each from arc welding gun switch disconnects the moment to calculate
The instruction wire feed rate of flashing back at moment；
The preset current inputted according to user and the deceleration acceleration, during calculating each from the arc welding gun switch disconnects the moment
The instruction current that flashes back carved；
The preset voltage and the deceleration acceleration inputted according to user, during calculating each from the arc welding gun switch disconnects the moment
The command voltage that flashes back carved；And
From the arc welding gun switch disconnects the moment, the wire feeding motor is controlled to flash back instruction wire feed rate based on described in be sent
Silk, at the same control the source of welding current flashed back based on described in instruction current and it is described command voltage is flashed back to be exported, and
When the instruction wire feed rate of flashing back reaches predetermined threshold, the wire feeding motor is controlled to stop wire feed, while the control welding
Power supply output chop pulse.
6. the control method of pulse welding equipment according to claim 5, it is characterised in that the model of the deceleration acceleration
Enclose for 0.2 to 1.
7. the control method of the pulse welding equipment according to claim 5 or 6, it is characterised in that the predetermined threshold
Scope is that the main weldering connects the 20% to 50% of instruction wire feed rate.
8. the control method of pulse welding equipment according to claim 5, it is characterised in that the number of the chop pulse
To be multiple.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610195204.4A CN105728899B (en) | 2016-03-31 | 2016-03-31 | Pulse welding equipment and its control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610195204.4A CN105728899B (en) | 2016-03-31 | 2016-03-31 | Pulse welding equipment and its control method |
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| CN105728899A CN105728899A (en) | 2016-07-06 |
| CN105728899B true CN105728899B (en) | 2017-10-31 |
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|---|---|---|---|---|
| CN106925865B (en) * | 2017-02-20 | 2018-10-23 | 上海威特力焊接设备制造股份有限公司 | A kind of gas shielded arc welding receipts arc device and method |
| CN106735735B (en) * | 2017-02-20 | 2018-10-23 | 上海威特力焊接设备制造股份有限公司 | A kind of pulse gas-shielded weldering receipts arc device and method |
| CN107498146B (en) * | 2017-09-15 | 2019-05-10 | 唐山松下产业机器有限公司 | Welding system, arc welding control device and method |
| CN108890084B (en) * | 2018-07-18 | 2020-07-14 | 唐山松下产业机器有限公司 | Welding equipment, welding control device and welding control method |
| CN109590578B (en) * | 2018-12-29 | 2021-01-29 | 唐山松下产业机器有限公司 | Burn-back energy matching control method for digital welding machine |
| CN111001896B (en) * | 2019-12-30 | 2021-12-14 | 唐山松下产业机器有限公司 | Welding device, burn-back control device and method |
| CN111872514B (en) * | 2020-07-24 | 2022-06-17 | 唐山松下产业机器有限公司 | Burn-back control method for digital welding machine and related equipment |
| CN114833431B (en) * | 2022-06-13 | 2024-05-14 | 唐山松下产业机器有限公司 | Pulse welding burn-back control method and device |
| CN115041769A (en) * | 2022-07-27 | 2022-09-13 | 深圳市佳士科技股份有限公司 | Welding equipment control method and device, electronic equipment and storage medium |
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