CN106077932A - A kind of welding current detection method - Google Patents
A kind of welding current detection method Download PDFInfo
- Publication number
- CN106077932A CN106077932A CN201610491649.7A CN201610491649A CN106077932A CN 106077932 A CN106077932 A CN 106077932A CN 201610491649 A CN201610491649 A CN 201610491649A CN 106077932 A CN106077932 A CN 106077932A
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- China
- Prior art keywords
- current
- welding
- detector unit
- infrared temperature
- primary
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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
- B23K11/25—Monitoring devices
- B23K11/252—Monitoring devices using digital 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
- 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)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of welding current detection method, comprise the following steps: wlding is arranged on the workbench of welding machine by a., and install infrared temperature detector unit, current sample detector unit, and all unit all connect with data acquisition unit；B., 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 consisted of commutation diode, and the electric current of current transformer sampling is carried out rectification；C. after rectification completes, dividing potential drop after being sampled by multiple resistance, and the magnitude of voltage after individual electric resistance partial pressure is proportional to primary or the electric current of secondary of main transformer；D. by described infrared temperature detector unit, the welding temperature at current welding position is detected in real time, and constantly repeat b step and step c process.Use the present invention can the impact of electric current time effectively analysis temperature and voltage are for welding.
Description
Technical field
The present invention relates to welder equipment field, specifically, be a kind of welding current detection method.
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 current detection method, to solve the problems referred to above.
For achieving the above object, technical scheme is as follows:
A kind of welding current detection method, it is characterised in that comprise the following steps:
A. wlding is arranged on the workbench of welding machine, and install infrared temperature detector unit, current sample detector unit,
And all unit all connects with data acquisition unit；
B., in current sample detector unit, current transformer is placed in primary or the secondary of main transformer, detection main transformer
Primary or secondary current, the bridge rectifier consisted of commutation diode, and the electric current sampling current transformer are carried out
Rectification；
C. after rectification completes, dividing potential drop after being sampled by multiple resistance, and the magnitude of voltage after individual electric resistance partial pressure is proportional to main
The primary of transformator or the electric current of secondary；
D. by described infrared temperature detector unit, the welding temperature at current welding position is detected in real time, and constantly
Repeat b step and step c process.
Further, infrared temperature detector unit includes multiple infrared temperature detection probe, and multiple described infrared temperatures are examined
The welding temperature of the multiple test points at current welding position is detected by probing head respectively in real time.
Further, current sample is that weldingvoltage feedback signal is averaged.
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 analysis temperature and voltage for the impact of electric current during welding.Current intensity during welding is effectively divided
Analysis, it is to avoid the situations such as overload.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention will be further described.
A kind of welding current detection method, it is characterised in that comprise the following steps:
A. wlding is arranged on the workbench of welding machine, and install infrared temperature detector unit, current sample detector unit,
And all unit all connects with data acquisition unit；B., in current sample detector unit, current transformer is placed in main transformer
Primary or secondary, the primary of detection main transformer or secondary current, the bridge rectifier formed by commutation diode, and right
The electric current of current transformer sampling carries out rectification；C. after rectification completes, dividing potential drop after being sampled by multiple resistance, and to individual
Magnitude of voltage after electric resistance partial pressure is proportional to the primary of main transformer or the electric current of secondary；D. single by the detection of described infrared temperature
Welding temperature at current welding position is detected by unit in real time, and constantly repeats b step and step c process.Infrared temperature
Detector unit includes multiple infrared temperature detection probe, multiple described infrared temperature detection probe respectively to current welding position at
The welding temperature of multiple test points detect in real time.Current sample is that weldingvoltage feedback signal is averaged.
The inventive method step is simple, reasonable in design and realization is convenient, using effect is good, uses the present invention effectively to analyze
Temperature and voltage are for the impact of electric current during welding.Current intensity during welding is effectively analyzed, it is to avoid the situations such as overload.
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 (3)
1. a welding current detection method, it is characterised in that comprise the following steps:
A. wlding is arranged on the workbench of welding machine, and install infrared temperature detector unit, current sample detector unit,
And all unit all connects with data acquisition unit；
B., in current sample detector unit, current transformer is placed in primary or the secondary of main transformer, detection main transformer
Primary or secondary current, the bridge rectifier consisted of commutation diode, and the electric current sampling current transformer are carried out
Rectification；
C. after rectification completes, dividing potential drop after being sampled by multiple resistance, and the magnitude of voltage after individual electric resistance partial pressure is proportional to main
The primary of transformator or the electric current of secondary；
D. by described infrared temperature detector unit, the welding temperature at current welding position is detected in real time, and constantly
Repeat b step and step c process.
Welding current detection method the most according to claim 1, it is characterised in that infrared temperature detector unit includes multiple
Infrared temperature detection probe, the weldering to the multiple test points at current welding position respectively of multiple described infrared temperature detection probe
Jointing temp detects in real time.
Welding current detection method the most according to claim 1, it is characterised in that current sample is weldingvoltage feedback letter
Number average.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610491649.7A CN106077932A (en) | 2016-06-29 | 2016-06-29 | A kind of welding current detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610491649.7A CN106077932A (en) | 2016-06-29 | 2016-06-29 | A kind of welding current detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106077932A true CN106077932A (en) | 2016-11-09 |
Family
ID=57215176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610491649.7A Withdrawn CN106077932A (en) | 2016-06-29 | 2016-06-29 | A kind of welding current detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106077932A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107807270A (en) * | 2017-11-29 | 2018-03-16 | 曲阜师范大学 | A kind of current sensing means and its detection method based on artificial intelligence |
-
2016
- 2016-06-29 CN CN201610491649.7A patent/CN106077932A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107807270A (en) * | 2017-11-29 | 2018-03-16 | 曲阜师范大学 | A kind of current sensing means and its detection method based on artificial intelligence |
| CN107807270B (en) * | 2017-11-29 | 2023-06-27 | 曲阜师范大学 | Current detection device and method based on artificial intelligence |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20161109 |
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| WW01 | Invention patent application withdrawn after publication |