CN103920991B - Adopt the laser-beam welding machine circuit of intelligent double-basis accurate xenon lamp current compensation technology - Google Patents
Adopt the laser-beam welding machine circuit of intelligent double-basis accurate xenon lamp current compensation technology Download PDFInfo
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- CN103920991B CN103920991B CN201310013420.9A CN201310013420A CN103920991B CN 103920991 B CN103920991 B CN 103920991B CN 201310013420 A CN201310013420 A CN 201310013420A CN 103920991 B CN103920991 B CN 103920991B
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- digital
- processing unit
- central processing
- xenon lamp
- laser
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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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Lasers (AREA)
Abstract
The present invention relates to a kind of laser-beam welding machine circuit adopting intelligent double-basis accurate xenon lamp current compensation technology, comprise central processing unit, also comprise comparator, digital to analog converter, external interrupt treatment circuit and voltage-reference, described voltage-reference, described central processing unit, described comparator and described external interrupt treatment circuit are linked in sequence, the digital signal input end of described digital to analog converter connects the digital signal output end of described central processing unit, and the analog signal output of described digital to analog converter connects described comparator.The present invention farthest can reduce the alternating component in electric current, improves the precision of Current Control, thus realizes stablizing in laser weld.
Description
Technical field
The present invention relates to a kind of laser welding technology, be specifically related to a kind of laser-beam welding machine circuit adopting intelligent double-basis accurate xenon lamp current compensation technology.
Background technology
Laser weld is a kind of Novel welding processing mode, and have weld width little, depth-to-width ratio is high, and heat affected area is little, it is little to be out of shape, smooth welded seam, attractive in appearance, easily realizes the advantages such as Automation of Welding.Modal laser-beam welding machine is all adopt xenon lamp as light source, and current xenon lamp is all powered by alternating current.But the greatest drawback of Alternating Current Power Supply is exactly to cause the light source of xenon lamp that flicker or fluctuation occur, particularly in xenon lamp list benchmark control at present, Alternating Component is larger, easily cause current fluctuation large, finally cause the hardware of laser-beam welding machine seriously disturbed, very easily cause damage or the damage of the electronic device at switch position, cause equipment job insecurity, in addition, LASER Light Source fluctuation is larger, energy can be caused also to produce corresponding fluctuation, therefore when welding and particularly implementing precision welding, temperature is easily caused constantly to rise and fall, temperature in welding process is caused to produce phenomenon fluctuated, cause the effect of welding poor, this has become of perplexing in a precise laser welding process difficult problem urgently to be resolved hurrily.
Summary of the invention
The present invention is for overcoming existing problem, a kind of laser-beam welding machine circuit adopting intelligent double-basis accurate xenon lamp current compensation technology is provided, apply this circuit and can export constant electric current, farthest can reduce the alternating component in electric current, improve the precision of Current Control, thus realize stablizing in laser weld.
A kind of laser-beam welding machine circuit adopting intelligent double-basis accurate xenon lamp current compensation technology of the present invention, comprise central processing unit, also comprise comparator, digital to analog converter, external interrupt treatment circuit and voltage-reference, described voltage-reference, described central processing unit, described comparator and described external interrupt treatment circuit are linked in sequence, the digital signal input end of described digital to analog converter connects the digital signal output end of described central processing unit, and the analog signal output of described digital to analog converter connects described comparator.
The laser-beam welding machine circuit of the intelligent double-basis of described employing accurate xenon lamp current compensation technology, can also comprise the Hall element for gathering current signal, described Hall element is located between described central processing unit and described comparator.
The laser-beam welding machine circuit of described employing intelligence double-basis accurate xenon lamp current compensation technology, can also comprise the IGBT switch for switch xenon lamp, described IGBT switch is located between described central processing unit and described Hall element.
The laser-beam welding machine circuit of employing intelligence double-basis accurate xenon lamp current compensation technology described above, the quantity of described digital to analog converter is preferably two.
Operation principle of the present invention: central processing unit (CPU) sends unlatching IGBT instruction and lights xenon lamp, at this moment the electric current flowing through xenon lamp is delivered to comparator loop by the collection of current Hall sensor and is made a decision, CPU sends upper and lower two-way reference analog signal by 2 way weighted-voltage D/A converters (DAC) and compares judgement to comparator loop with current signal simultaneously, IGBT (opening IGBT) signal is closed when electric current exports trigger external interrupt signal higher than comparator during upper benchmark (lower than lower benchmark) electric current, with this constant electric current flowing through xenon lamp, laser energy is exported more stable.
The laser-beam welding machine circuit of the intelligent double-basis of employing of the present invention accurate xenon lamp current compensation technology, have employed two reference current automatically the mode of following ensure that xenon lamp current fluctuation is minimum, decrease Alternating Component interference, make working hardware more stable, be not easy to damage switching device, and laser energy stable output, be convenient to implement precision welding.
Detailed content for the present invention and technology, hereby just coordinate accompanying drawing to be described as follows.
Accompanying drawing explanation
Fig. 1 is connection block diagram of the present invention.
Detailed description of the invention
Please refer to shown in Fig. 1, the preferred embodiment of the laser-beam welding machine circuit of intelligent double-basis accurate xenon lamp current compensation technology is adopted for the present invention is a kind of, in the present embodiment, the laser-beam welding machine circuit of this employing intelligence double-basis accurate xenon lamp current compensation technology comprises central processing unit (CPU), also comprise comparator, digital to analog converter (DAC), external interrupt treatment circuit and voltage-reference, described voltage-reference, described central processing unit, described comparator and described external interrupt treatment circuit are linked in sequence, the digital signal input end of described digital to analog converter connects the digital signal output end of described central processing unit, the analog signal output of described digital to analog converter connects described comparator, the quantity of described digital to analog converter is preferably two.The laser-beam welding machine circuit of the intelligent double-basis of described employing accurate xenon lamp current compensation technology, the Hall element for gathering current signal can also be comprised, described Hall element is located between described central processing unit and described comparator, it can also comprise the IGBT switch for switch xenon lamp, and described IGBT switch is located between described central processing unit and described Hall element.Described central processing unit sends the described IGBT instruction of unlatching and lights xenon lamp, at this moment the electric current flowing through xenon lamp is delivered to described comparator loop by the collection of current Hall sensor and is made a decision, CPU sends upper and lower two-way reference analog signal by 2 way weighted-voltage D/A converters and compares judgement to comparator loop with current signal simultaneously, IGBT (opening IGBT) signal is closed when electric current exports trigger external interrupt signal higher than comparator during upper benchmark (lower than lower benchmark) electric current, with this constant electric current flowing through xenon lamp, laser energy is exported more stable.
The present invention is used in laser control system, farthest can reduce the alternating component in electric current, improves the precision of Current Control, thus realizes stablizing in laser weld, is convenient to implement precision welding.
Claims (1)
1. one kind adopts the laser-beam welding machine circuit of intelligent double-basis accurate xenon lamp current compensation technology, comprise central processing unit, it is characterized in that: also comprise comparator, digital to analog converter, for gathering the Hall element of current signal, for the IGBT switch of switch xenon lamp, external interrupt treatment circuit and voltage-reference, described voltage-reference, described central processing unit, described comparator and described external interrupt treatment circuit are linked in sequence, the digital signal input end of described digital to analog converter connects the digital signal output end of described central processing unit, the analog signal output of described digital to analog converter connects described comparator, described Hall element is located between described central processing unit and described comparator, described IGBT switch is located between described central processing unit and described Hall element, the quantity of described digital to analog converter is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310013420.9A CN103920991B (en) | 2013-01-11 | 2013-01-11 | Adopt the laser-beam welding machine circuit of intelligent double-basis accurate xenon lamp current compensation technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310013420.9A CN103920991B (en) | 2013-01-11 | 2013-01-11 | Adopt the laser-beam welding machine circuit of intelligent double-basis accurate xenon lamp current compensation technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103920991A CN103920991A (en) | 2014-07-16 |
| CN103920991B true CN103920991B (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310013420.9A Expired - Fee Related CN103920991B (en) | 2013-01-11 | 2013-01-11 | Adopt the laser-beam welding machine circuit of intelligent double-basis accurate xenon lamp current compensation technology |
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| CN (1) | CN103920991B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105892342A (en) * | 2015-01-14 | 2016-08-24 | 应城骏腾发自动焊接装备有限公司 | Inverter electric resistance welding constant current intelligent control method |
| DE102018005676A1 (en) * | 2018-07-19 | 2020-01-23 | Tdk-Micronas Gmbh | Hall sensor and method for operating such |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060723A (en) * | 1990-10-08 | 1992-04-29 | 徐福海 | Power factory monitoring method and device |
| CN2753498Y (en) * | 2004-11-22 | 2006-01-25 | 比亚迪股份有限公司 | Laser welding machine |
| CN101000456A (en) * | 2006-01-13 | 2007-07-18 | 优志旺电机株式会社 | Discharge lamp ignition device and projector |
| CN102299673A (en) * | 2011-08-31 | 2011-12-28 | 东南大学 | Cooperative chopped wave starting circuit and method for switched reluctance motor |
| CN102412773A (en) * | 2011-12-23 | 2012-04-11 | 东南大学 | Control circuit of switched reluctance motor with double chopped wave limits |
| CN203091968U (en) * | 2013-01-11 | 2013-07-31 | 深圳市通发激光设备有限公司 | Laser welding machine circuit adopting intelligent double-standard xenon lamp current compensation technology |
-
2013
- 2013-01-11 CN CN201310013420.9A patent/CN103920991B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060723A (en) * | 1990-10-08 | 1992-04-29 | 徐福海 | Power factory monitoring method and device |
| CN2753498Y (en) * | 2004-11-22 | 2006-01-25 | 比亚迪股份有限公司 | Laser welding machine |
| CN101000456A (en) * | 2006-01-13 | 2007-07-18 | 优志旺电机株式会社 | Discharge lamp ignition device and projector |
| CN102299673A (en) * | 2011-08-31 | 2011-12-28 | 东南大学 | Cooperative chopped wave starting circuit and method for switched reluctance motor |
| CN102412773A (en) * | 2011-12-23 | 2012-04-11 | 东南大学 | Control circuit of switched reluctance motor with double chopped wave limits |
| CN203091968U (en) * | 2013-01-11 | 2013-07-31 | 深圳市通发激光设备有限公司 | Laser welding machine circuit adopting intelligent double-standard xenon lamp current compensation technology |
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| CN103920991A (en) | 2014-07-16 |
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