CN106001890A - Output control method for welder - Google Patents
Output control method for welder Download PDFInfo
- Publication number
- CN106001890A CN106001890A CN201610492204.0A CN201610492204A CN106001890A CN 106001890 A CN106001890 A CN 106001890A CN 201610492204 A CN201610492204 A CN 201610492204A CN 106001890 A CN106001890 A CN 106001890A
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- CN
- China
- Prior art keywords
- welding
- current
- welder
- power supply
- control method
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/24—Electric supply or control circuits therefor
- B23K11/241—Electric supplies
-
- 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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/24—Electric supply or control circuits therefor
- B23K11/25—Monitoring devices
- B23K11/252—Monitoring devices using digital means
- B23K11/257—Monitoring devices using digital means the measured parameter being an electrical current
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Generation Of Surge Voltage And Current (AREA)
Abstract
The invention discloses an output control method for a welder, which comprises the following steps: a. pre-preparation: pre-selecting a corresponding welding method and presetting corresponding parameters; b. current rectification: connecting the welder to an AC power supply, and rectifying an electric current sampled with a current transformer to obtain a current detection result; c. welding starting: after turning on the welder and igniting an arc, adjusting output of the welder according to a specific welding process in a self-adapting manner to obtain a required output characteristic; d. determining the state of a welding gun switch according to the result obtained in the step c, and judging according to a welding manner; and e. compensation unit setting: generating a compensation signal according to a result obtained in the step d, superimposing the compensation signal with the AC power supply to generate a stable working power supply for the welder. According to the output control method, the output current of the welder can be effectively controlled.
Description
Technical field
The present invention relates to welder equipment field, specifically, be a kind of welding machine output control method.
Background technology
Electric resistance welding is a kind of important welding method, and it is by after weldment combination, applies pressure by electrode, the method that the resistance heat utilizing the electric current contact surface by joint and adjacent domain to produce carries out welding.Electric resistance welding to be mainly characterized by weldingvoltage the lowest (1～12V), welding current very big (tens～a few kiloampere), complete the weld interval extremely short (0.01～several seconds) of a joint, therefore productivity ratio be high；During heating, butt joint applies mechanical pressure, joint seam under the effect of the pressure；And during welding, it is not necessary to filler metal filler.Summary of the invention
It is desirable to provide a kind of welding machine output control method, to solve the problems referred to above.
For achieving the above object, technical scheme is as follows:
A kind of welding machine output control method, it is characterised in that comprise the following steps:
A., input detection unit is set: input detection unit is connected to an AC-powered power supply, and is being provided with current sample detector unit and temperature detecting unit；
B. electric current rectification: in current sample detector unit, current transformer is placed in primary or the secondary of main transformer, the primary of detection main transformer or secondary current, the bridge rectifier formed by commutation diode, and the electric current of current transformer sampling is carried out rectification, to obtain current detecting result；
C., comparing unit is set: connect the input detection unit in a step, and and a power supply standard value, and the testing result of current sampling unit is compared with power supply standard value, and generates a comparative result；
D., compensating unit, and the comparing unit being connected in step c are set, and generate a compensation signal according to comparative result, compensate signal and superpose with described AC-powered power supply, generate a stable welding machine working power.
Further, compensating unit further includes PWM module, and described PWM module has the pwm signal of scalable dutycycle, adjusts the compensation signal of the pwm signal dutycycle of PWM module output according to described comparative result, thus compensates the fluctuation of power supply.
The beneficial effects of the present invention is: method step is simple, reasonable in design and realization is convenient, using effect is good, use the present invention can effectively analyze the power of electric current, and compensate signal according to the change of electric current to provide, it is ensured that the stability of welding machine entirety output environment.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention will be further described.
A kind of welding machine output control method, it is characterised in that comprise the following steps:
A., input detection unit is set: input detection unit is connected to an AC-powered power supply, and is being provided with current sample detector unit and temperature detecting unit；
B. electric current rectification: in current sample detector unit, current transformer is placed in primary or the secondary of main transformer, the primary of detection main transformer or secondary current, the bridge rectifier formed by commutation diode, and the electric current of current transformer sampling is carried out rectification, to obtain current detecting result；
C., comparing unit is set: connect the input detection unit in a step, and and a power supply standard value, and the testing result of current sampling unit is compared with power supply standard value, and generates a comparative result；
D., compensating unit, and the comparing unit being connected in step c are set, and generate a compensation signal according to comparative result, compensate signal and superpose with described AC-powered power supply, generate a stable welding machine working power.
Compensating unit further includes PWM module, and described PWM module has the pwm signal of scalable dutycycle, adjusts the compensation signal of the pwm signal dutycycle of PWM module output according to described comparative result, thus compensates the fluctuation of power supply.
The inventive method step is simple, reasonable in design and realization is convenient, using effect is good, uses the present invention can effectively analyze the power of electric current, and compensates signal according to the change of electric current to provide, it is ensured that the stability of welding machine entirety output environment.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (2)
1. a welding machine output control method, it is characterised in that comprise the following steps:
A. pre-preparation: corresponding welding method and preset corresponding parameter are pre-selected；
B. electric current rectification: be connected to an AC-powered power supply, and it is provided with current sample detector unit, current transformer is placed in primary or the secondary of main transformer, the primary of detection main transformer or secondary current, the bridge rectifier formed by commutation diode, and the electric current of current transformer sampling is carried out rectification, to obtain current detecting result；
C. welding starts: after opening welding machine the electric arc that ignites, and judges that the testing result of welding process b step is the most stable, i.e. the most consistent with preset parameter, and obtains, according to concrete welding process Automatic adjusument welding machine output, the output characteristics needed；
D. determine the state of arc welding gun switch according to the result of step c and combine welding manner, it may be judged whether blow-out, otherwise continuing executing with welding;
E., compensating unit is set: generates one according to the result of Step d and compensates signal, compensates signal and superpose with described AC-powered power supply, generate a stable welding machine working power.
Welding machine output control method the most according to claim 1, it is characterized in that, described compensating unit includes PWM module, described PWM module has the pwm signal of scalable dutycycle, adjust the compensation signal of the pwm signal dutycycle of PWM module output according to described comparative result, thus compensate the fluctuation of power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610492204.0A CN106001890A (en) | 2016-06-29 | 2016-06-29 | Output control method for welder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610492204.0A CN106001890A (en) | 2016-06-29 | 2016-06-29 | Output control method for welder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106001890A true CN106001890A (en) | 2016-10-12 |
Family
ID=57083998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610492204.0A Withdrawn CN106001890A (en) | 2016-06-29 | 2016-06-29 | Output control method for welder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106001890A (en) |
-
2016
- 2016-06-29 CN CN201610492204.0A patent/CN106001890A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20161012 |
|
| WW01 | Invention patent application withdrawn after publication |