CN106141407A - Output intent stablized by a kind of welding machine - Google Patents
Output intent stablized by a kind of welding machine Download PDFInfo
- Publication number
- CN106141407A CN106141407A CN201610491650.XA CN201610491650A CN106141407A CN 106141407 A CN106141407 A CN 106141407A CN 201610491650 A CN201610491650 A CN 201610491650A CN 106141407 A CN106141407 A CN 106141407A
- Authority
- CN
- China
- Prior art keywords
- unit
- power supply
- welding machine
- current
- electric current
- Prior art date
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Generation Of Surge Voltage And Current (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of welding machine and stablize output intent, comprise the following steps: a. arranges input detection unit: 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, carries out rectification, to obtain current detecting result to the electric current of current transformer sampling；C., comparing unit is set: generate 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.Use the present invention that the stability of welding machine output can be effectively ensured.
Description
Technical field
The present invention relates to welder equipment field, specifically, be that output intent stablized by a kind of welding machine.
Background technology
Electric resistance welding is a kind of important welding method, and it is by after weldment combination, applies pressure by electrode, utilizes electric current
The method that the resistance heat produced by contact surface and the adjacent domain of joint carries out welding.Electric resistance welding be mainly characterized by welding electricity
Press the lowest (1～12V), welding current very big (tens～a few kiloampere), weld interval of completing a joint extremely short (0.01～
Several seconds), therefore productivity ratio is high；During heating, butt joint applies mechanical pressure, joint seam under the effect of the pressure；And during welding, no
Need filler metal filler.
But during electric resistance welding, it is impossible to directly detect by the welding current in welding zone territory, in addition by
The resistance heat produced in contact surface and adjacent domain is bigger so that the detection difficulty of welding current strengthens further, uses at present
The device such as Hall current sensor or diverter detects electric welding machine output electric current at the outfan of welding machine.Hall current sensor
Advantage is to realize testing circuit to isolate with main circuit, but the cost of Hall current sensor is high, and the biggest current Hall senses
Device；And Hall current sensor needs power supply to power, testing circuit is complicated.Use the scheme low cost of diverter, but can not
Realize testing circuit to isolate with main circuit, poor anti jamming capability.Summary of the invention
It is desirable to provide a kind of welding machine stablizes output intent, to solve the problems referred to above.
For achieving the above object, technical scheme is as follows:
Output intent stablized by a kind of welding machine, 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 electric current
Sample detecting unit and temperature detecting unit；
B. electric current rectification: in current sample detector unit, is placed in primary or the secondary of main transformer by current transformer, and detection is main
The primary of transformator or secondary current, the bridge rectifier formed by commutation diode, and to current transformer sampling
Electric current carries 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 by electricity
The testing result of stream sampling unit compares 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 to 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 scalable dutycycle
Pwm signal, adjusts the compensation signal of the pwm signal dutycycle of PWM module output, thus compensates according to described comparative result
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, 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 welding machine entirety output ring
The stability in border.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention will be further described.
Output intent stablized by a kind of welding machine, 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 electric current
Sample detecting unit and temperature detecting unit；
B. electric current rectification: in current sample detector unit, is placed in primary or the secondary of main transformer by current transformer, and detection is main
The primary of transformator or secondary current, the bridge rectifier formed by commutation diode, and to current transformer sampling
Electric current carries 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 by electricity
The testing result of stream sampling unit compares 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 to superpose with described AC-powered power supply, generate a stable welding machine working power.
Compensating unit includes that PWM module, described PWM module have the pwm signal of scalable dutycycle, according to
Described comparative result adjusts the compensation signal of the pwm signal dutycycle of PWM module output, thus compensates the ripple of power supply
Dynamic.
The inventive method step is simple, reasonable in design and realization is convenient, using effect is good, uses the present invention effectively to 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.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made any repaiies
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (2)
1. output intent stablized by a welding machine, 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 electric current
Sample detecting unit and temperature detecting unit；
B. electric current rectification: in current sample detector unit, is placed in primary or the secondary of main transformer by current transformer, and detection is main
The primary of transformator or secondary current, the bridge rectifier formed by commutation diode, and to current transformer sampling
Electric current carries 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 by electricity
The testing result of stream sampling unit compares 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 to superpose with described AC-powered power supply, generate a stable welding machine working power.
Output intent stablized by welding machine the most according to claim 1, it is characterised in that compensating unit includes PWM module,
Described PWM module has the pwm signal of scalable dutycycle, adjusts the output of PWM module according to described comparative result
The compensation signal of pwm signal dutycycle, thus compensate the fluctuation of power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610491650.XA CN106141407A (en) | 2016-06-29 | 2016-06-29 | Output intent stablized by a kind of welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610491650.XA CN106141407A (en) | 2016-06-29 | 2016-06-29 | Output intent stablized by a kind of welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106141407A true CN106141407A (en) | 2016-11-23 |
Family
ID=57350311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610491650.XA Withdrawn CN106141407A (en) | 2016-06-29 | 2016-06-29 | Output intent stablized by a kind of welding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106141407A (en) |
-
2016
- 2016-06-29 CN CN201610491650.XA patent/CN106141407A/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: 20161123 |
|
| WW01 | Invention patent application withdrawn after publication |