CN105728899A - Pulse welding equipment and control method thereof - Google Patents
Pulse welding equipment and control method thereof Download PDFInfo
- Publication number
- CN105728899A CN105728899A CN201610195204.4A CN201610195204A CN105728899A CN 105728899 A CN105728899 A CN 105728899A CN 201610195204 A CN201610195204 A CN 201610195204A CN 105728899 A CN105728899 A CN 105728899A
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- welding
- wire feed
- instruction
- 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 invention provides pulse welding equipment and a control method thereof. The pulse welding equipment comprises a welding power source and a wire feeding motor. The pulse welding equipment is characterized in that the pulse welding equipment further comprises a main welding command wire feeding speed obtaining unit, a burn-back command wire feeding speed calculating unit, a burn-back command current calculating unit, a burn-back voltage calculating unit and a control unit. According to the pulse welding equipment and the control method thereof, the diameter of a molten ball formed through burn-back can be made within the optimal range, and thus the arc striking operation of next welding is facilitated.
Description
[technical field]
The present invention relates to welding field, particularly relate to and a kind of adopt pulse welding mode to carry out welding equipment and the control method thereof welded.
[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, it is possible to be divided into short circuiting transfer and pulse welding two kinds.Pulse welding has electric arc pinch effect, and electric arc is concentrated, the advantages such as deflection is good, thus is widely used in plate sheet welding (welding such as non-ferrous metals such as rustless steel, steel and titaniums).Hereinafter, the welding equipment adopting pulse mode to carry out welding is called pulse welding equipment.Pulse welding equipment includes the source of welding current and has the wire feeder of wire feeding motor.
Generally, the quality of performance of flashing back, striking performance can be had a huge impact.According to pertinent literature and welding experience, if material is carbon steel, then the molten bulb diameter formed that flashes back is preferably 1.1～1.3 times of gage of wire；If material is rustless steel, then the molten bulb diameter formed that flashes back is preferably 0.9～1.0 times of gage of wire, excessive or too small striking all can produce harmful effect.
Existing processing mode of flashing back is: disconnects arc welding gun switch after having welded, enters and flash back the stage, now that wire feed rate is uncontrolled, is allowed to random successively decreasing, until being decremented to zero, then exporting a chop pulse, entering chop and processing.
Therefore, in actual welding process, adopting above-mentioned processing mode of flashing back, the diameter of the molten ball ultimately formed often does not meet standard, causes that the effect of striking next time is bad.
Therefore, market being expected, the stage of flashing back of existing pulse welding power supply improves, to realize desirably melting bulb diameter, thus being conducive to striking next time.
[summary of the invention]
[technical problem]
It is contemplated that the molten bulb diameter problem not up to standard formed of flashing back existed for existing pulse welding equipment, it is provided that a kind of pulse welding equipment and control method thereof.
[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 include: main welding instruction wire feed rate acquiring unit, for determining main welding instruction wire feed rate according to the welding parameter of user's input；Flash back instruction wire feed rate computing unit, for according to described main welding instruction wire feed rate and predetermined deceleration acceleration, calculating the instruction wire feed rate of flashing back in each moment from the arc welding gun switch disconnection moment；Flash back instruction current computing unit, for the preset current according to user's input and described deceleration acceleration, calculates the instruction current that flashes back in each moment from the described arc welding gun switch disconnection moment.
Described pulse welding equipment also includes: flash back command voltage computing unit, for the preset voltage according to user's input and described deceleration acceleration, calculates the command voltage that flashes back in each moment from the arc welding gun switch disconnection moment；And control unit, for disconnecting the moment from described arc welding gun switch, control wire feeding motor and carry out wire feed based on described instruction wire feed rate of flashing back, control the source of welding current simultaneously and flash back instruction current and the described command voltage that flashes back exports based on described, and when described instruction wire feed rate of flashing back reaches predetermined threshold, control described wire feeding motor and stop wire feed, control the output chop pulse of the described source of welding current simultaneously.
The present invention also provides for the control method of a kind of pulse welding equipment, described pulse welding equipment includes the source of welding current and wire feeding motor, it is characterized in that, described control method comprises the steps: that the welding parameter according to user's input determines main welding instruction wire feed rate；According to described main welding instruction wire feed rate and predetermined deceleration acceleration, calculate the instruction wire feed rate of flashing back in each moment from the arc welding gun switch disconnection moment；The preset current inputted according to user and described deceleration acceleration, calculate the instruction current that flashes back in each moment from the described arc welding gun switch disconnection moment.
Described control method also comprises the steps: the preset voltage according to user's input and described deceleration acceleration, calculates the command voltage that flashes back in each moment from the described arc welding gun switch disconnection moment；And from the described arc welding gun switch disconnection moment, control wire feeding motor and carry out wire feed based on described instruction wire feed rate of flashing back, control the source of welding current simultaneously and flash back instruction current and the described command voltage that flashes back exports based on described, and when described instruction wire feed rate of flashing back reaches predetermined threshold, control described wire feeding motor and stop wire feed, control the output chop pulse of the described source of welding current simultaneously.
[invention beneficial effect]
The present invention passes through technique scheme, it is possible to the molten bulb diameter formed that makes to flash back reaches optimized scope, thus being conducive to the striking operation of welding next time.
[accompanying drawing explanation]
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 time dependent corresponding relation figure of instruction wire feed rate.
Fig. 4 is the time dependent corresponding relation figure of the instruction current that flashes back of the present invention.
Fig. 5 is the time dependent corresponding relation figure of the command voltage that flashes back of the present invention.
[detailed description of the invention]
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is illustrated.
First, the basic welding process of the pulse welding equipment of the present invention is described.When welding, first make pulse welding equipment (include the source of welding current and have the wire feeder of wire feeding motor), user is operated by panel and inputs various welding parameters, for instance material, gas, string diameter, preset current, preset voltage etc..Afterwards, user presses arc welding gun switch, and now welding equipment enters the striking stage, and meanwhile, the source of welding current controls wire feeder and starts wire feed.When wire feed rate reaches predetermined value, welding equipment controls to enter the main welding stage.Afterwards, when user disconnects arc welding gun switch, welding equipment controls entrance and flashes back the stage.Present invention improvement to the stage control that flashes back just.
User presses the process that arc welding gun switch carries out welding repeatedly, it is simply that repeat the process in each stage above-mentioned.The control method of the present invention can perform corresponding program by the controller of pulse welding equipment and realize.
Additionally, due to pulse welding device interior is controlled the improvement of program (software) by the present invention, therefore omit the description that the hardware to pulse welding equipment is constituted at this.
[first embodiment]
Referring to Fig. 1 to Fig. 5, embodiments of the invention are described.Fig. 1 illustrates the software configuration of the pulse welding equipment of the present invention.
As it is shown in figure 1, the pulse welding equipment of the present invention includes: main welding instruction wire feed rate acquiring unit, for determining main welding instruction wire feed rate according to the welding parameter (including: material, string diameter, gas and preset current) of user's input；Flash back instruction wire feed rate computing unit, for according to described main welding instruction wire feed rate and predetermined deceleration acceleration, calculating the instruction wire feed rate of flashing back in each moment from the arc welding gun switch disconnection moment；Flash back instruction current computing unit；For the described preset current inputted according to user and described deceleration acceleration, calculate the instruction current that flashes back in each moment from the described arc welding gun switch disconnection moment.
The pulse welding equipment of the present invention also includes: flash back command voltage computing unit, for the described preset voltage according to user's input and described deceleration acceleration, calculates the command voltage that flashes back in each moment from the arc welding gun switch disconnection moment；And control unit, for disconnecting the moment from described arc welding gun switch, control wire feeding motor and carry out wire feed based on described instruction wire feed rate of flashing back, control the source of welding current simultaneously and flash back instruction current and the described command voltage that flashes back exports based on described, and when described instruction wire feed rate of flashing back reaches predetermined threshold, control described wire feeding motor and stop wire feed, control the output chop pulse of the described source of welding current simultaneously.
It follows that describe the control method in the pulse welding equipment striking stage of first embodiment of the invention with reference to Fig. 2 to Fig. 5.Described control method is performed the software program corresponding with the modules shown in Fig. 1 by the controller (CPU) of pulse welding equipment and realizes.
As in figure 2 it is shown, first, in step s 201, the welding parameter (including material, string diameter, gas and preset current) that CPU inputs according to user determines main welding instruction wire feed rate.Material, string diameter, gas and preset current all can be inputted by the guidance panel of welding equipment.The corresponding relation of main welding instruction wire feed rate and welding parameter (including material, string diameter, gas and preset current) can prestore in memory as table.In the present embodiment, this table is stored in the internal storage (such as FLASH or ROM) of pulse welding equipment, but the invention is not restricted to this, it is possible to be stored in external memory storage.
Then, in step S202, CPU, according to described main welding instruction wire feed rate and predetermined deceleration acceleration, calculates the instruction wire feed rate of flashing back in each moment from the arc welding gun switch disconnection moment.Described deceleration acceleration according to the difference of main welding wire feed rate, can adjust neatly.Preferably, described deceleration acceleration range for 0.2 to 1.As it is shown on figure 3, described instruction wire feed rate starts to successively decrease from main welding instruction wire feed rate according to predetermined deceleration acceleration.
Then, in step S203, described preset current that CPU inputs according to user and described deceleration acceleration, calculate from described arc welding gun switch disconnect the moment the instruction current that flashes back in each moment.As shown in Figure 4, the instruction current that flashes back described in also starts to successively decrease from main welding instruction current (i.e. preset current) according to described deceleration acceleration.
Then, in step S204, described preset voltage that CPU inputs according to user and described deceleration acceleration, calculate from arc welding gun switch disconnect the moment the command voltage that flashes back in each moment.As it is shown in figure 5, described in the command voltage that flashes back also start to successively decrease from main welding command voltage (i.e. preset voltage) according to described deceleration acceleration.
Afterwards, in step S205, as shown in Figures 3 to 5, CPU carries out controlling as follows: from the described arc welding gun switch disconnection moment (T1 moment), control wire feeding motor and carry out wire feed based on described instruction wire feed rate of flashing back, control the source of welding current simultaneously and flash back instruction current and the described command voltage that flashes back exports based on described, and when described instruction wire feed rate of flashing back reaches predetermined threshold (T2 moment), control wire feeding motor and stop wire feed, control source of welding current output chop pulse simultaneously.As preferably, described predetermined threshold range for the 20% to 50% of main welding instruction wire feed rate.
The quantity of the chop pulse of the present invention is different from prior art, and it can be multiple.After it can effectively eliminate once chop, the situation that molten bulb diameter is excessive.
Pass through technique scheme, it is possible to the molten bulb diameter formed that makes to flash back reaches optimized scope, thus being conducive to the striking operation of welding next time.
Above, with reference to detailed or specific embodiment, describe the present invention, it will be appreciated by those skilled in the art that various change and correction can be carried out under without departing from the thought of the present invention and the premise of scope.For example, it is possible to the order of above-mentioned steps S203 and S204 is adjusted, first carries out step S204, then carry out step S203.
[industrial applicibility]
Present invention can apply in existing pulse welding equipment, it is possible to the molten bulb diameter formed that makes to flash back reaches optimized scope, thus being conducive to the striking operation of welding next time.
Claims (8)
1. a pulse welding equipment, it includes the source of welding current and wire feeding motor, it is characterised in that also include:
Main welding instruction wire feed rate acquiring unit, for determining main welding instruction wire feed rate according to the welding parameter of user's input；
Flash back instruction wire feed rate computing unit, for according to described main welding instruction wire feed rate and predetermined deceleration acceleration, calculating the instruction wire feed rate of flashing back in each moment from the arc welding gun switch disconnection moment；
Flash back instruction current computing unit, for the preset current according to user's input and described deceleration acceleration, calculates the instruction current that flashes back in each moment from the described arc welding gun switch disconnection moment；
Flash back command voltage computing unit, for the preset voltage according to user's input and described deceleration acceleration, calculates the command voltage that flashes back in each moment from the described arc welding gun switch disconnection moment；And
Control unit, for disconnecting the moment from described arc welding gun switch, control described wire feeding motor and carry out wire feed based on described instruction wire feed rate of flashing back, control the described source of welding current simultaneously and flash back instruction current and the described command voltage that flashes back exports based on described, and when described instruction wire feed rate of flashing back reaches predetermined threshold, control described wire feeding motor and stop wire feed, control the output chop pulse of the described source of welding current simultaneously.
2. pulse welding equipment according to claim 1, it is characterised in that described deceleration acceleration range for 0.2 to 1.
3. pulse welding equipment according to claim 1 and 2, it is characterised in that described predetermined threshold range for the 20% to 50% of described main welding instruction wire feed rate.
4. pulse welding equipment according to claim 1, it is characterised in that the number of described chop pulse is multiple.
5. a control method for pulse welding equipment, described pulse welding equipment includes the source of welding current and wire feeding motor, it is characterised in that: described control method comprises the steps:
Welding parameter according to user's input determines main welding instruction wire feed rate；
According to described main welding instruction wire feed rate and predetermined deceleration acceleration, calculate the instruction wire feed rate of flashing back in each moment from the arc welding gun switch disconnection moment；
The preset current inputted according to user and described deceleration acceleration, calculate the instruction current that flashes back in each moment from the described arc welding gun switch disconnection moment；
The preset voltage inputted according to user and described deceleration acceleration, calculate the command voltage that flashes back in each moment from the described arc welding gun switch disconnection moment；And
From the described arc welding gun switch disconnection moment, control described wire feeding motor and carry out wire feed based on described instruction wire feed rate of flashing back, control the described source of welding current simultaneously and flash back instruction current and the described command voltage that flashes back exports based on described, and when described instruction wire feed rate of flashing back reaches predetermined threshold, control described wire feeding motor and stop wire feed, control the output chop pulse of the described source of welding current simultaneously.
6. the control method of pulse welding equipment according to claim 5, it is characterised in that described deceleration acceleration range 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 described predetermined threshold range for the 20% to 50% of described main welding instruction wire feed rate.
8. the control method of pulse welding equipment according to claim 5, it is characterised in that the number of described chop pulse is multiple.
Priority Applications (1)
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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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| CN201610195204.4A CN105728899B (en) | 2016-03-31 | 2016-03-31 | Pulse welding equipment and its control method |
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| CN105728899B CN105728899B (en) | 2017-10-31 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735735A (en) * | 2017-02-20 | 2017-05-31 | 上海威特力焊接设备制造股份有限公司 | Arc device and method is received in a kind of pulse gas-shielded weldering |
| CN106925865A (en) * | 2017-02-20 | 2017-07-07 | 上海威特力焊接设备制造股份有限公司 | A kind of gas shielded arc welding receives arc device and method |
| CN107498146A (en) * | 2017-09-15 | 2017-12-22 | 唐山松下产业机器有限公司 | welding system, electric arc welding control device and method |
| CN108890084A (en) * | 2018-07-18 | 2018-11-27 | 唐山松下产业机器有限公司 | Welding equipment, welding controller and welding control method |
| CN109590578A (en) * | 2018-12-29 | 2019-04-09 | 唐山松下产业机器有限公司 | A kind of energy match control method of flashing back for digital welding machine |
| CN111001896A (en) * | 2019-12-30 | 2020-04-14 | 唐山松下产业机器有限公司 | Welding device, burn-back control device and method |
| CN111872514A (en) * | 2020-07-24 | 2020-11-03 | 唐山松下产业机器有限公司 | Burn-back control method for digital welding machine and related equipment |
| CN114833431A (en) * | 2022-06-13 | 2022-08-02 | 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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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735735A (en) * | 2017-02-20 | 2017-05-31 | 上海威特力焊接设备制造股份有限公司 | Arc device and method is received in a kind of pulse gas-shielded weldering |
| CN106925865A (en) * | 2017-02-20 | 2017-07-07 | 上海威特力焊接设备制造股份有限公司 | A kind of gas shielded arc welding receives arc device and method |
| CN107498146A (en) * | 2017-09-15 | 2017-12-22 | 唐山松下产业机器有限公司 | welding system, electric arc welding control device and method |
| CN108890084A (en) * | 2018-07-18 | 2018-11-27 | 唐山松下产业机器有限公司 | Welding equipment, welding controller and welding control 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 |
| CN109590578A (en) * | 2018-12-29 | 2019-04-09 | 唐山松下产业机器有限公司 | A kind of energy match control method of flashing back for digital welding machine |
| CN111001896A (en) * | 2019-12-30 | 2020-04-14 | 唐山松下产业机器有限公司 | Welding device, burn-back control device and method |
| CN111872514A (en) * | 2020-07-24 | 2020-11-03 | 唐山松下产业机器有限公司 | Burn-back control method for digital welding machine and related equipment |
| 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 |
| CN114833431A (en) * | 2022-06-13 | 2022-08-02 | 唐山松下产业机器有限公司 | Pulse welding burn-back control method and device |
| 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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