CN104332813A - Energy feedback laser welding power supply system - Google Patents
Energy feedback laser welding power supply system Download PDFInfo
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- CN104332813A CN104332813A CN201410507732.XA CN201410507732A CN104332813A CN 104332813 A CN104332813 A CN 104332813A CN 201410507732 A CN201410507732 A CN 201410507732A CN 104332813 A CN104332813 A CN 104332813A
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Abstract
The invention discloses an energy feedback laser welding power supply system comprising a central control unit which is used for controlling operation of the whole power supply system, a light emergent enabling control unit which is used for starting and emitting laser, a soft start unit which is used for adjusting voltage, a current control unit which is used for detecting and feeding back current, and an energy detection and feedback unit which is used for detecting the energy signal of the emitted laser and feeding back the energy signal. The light emergent enabling control unit, the soft start unit, the current control unit and the energy detection and feedback unit are electrically connected with the central control unit respectively. Compared with systems in the prior art, a current signal can be detected and fed back by the current control unit, and a practical luminous energy signal of laser can be fed back by the energy detection and feedback unit. The energy signal and the current signal are received by the central control unit, and a xenon lamp is controlled according to the energy signal and the current signal so that stability of the xenon lamp can be enhanced.
Description
Technical field
The present invention relates to a kind of laser welding power-supply system, particularly relate to a kind of energy back laser welding power-supply system.
Background technology
Laser welding power supply is the numerical control pulse laser power supply that a kind of output current ripple is little, stability is high, is widely used in laser.Most of pulse laser power supply adopts current feedback in the market, and Laser Power Devices encourage pumping lamp, and logical resonator cavity resonance produces laser, and convert conversion of solar energy to from electric energy and only have about 3%, the instability which results in laser is higher, poor-performing.
Therefore, be necessary to provide a kind of new laser welding power-supply system to solve the problems referred to above.
Summary of the invention
The object of the present invention is to provide and a kind of there is energy back function, energy back laser welding power-supply system that the laser stability that sends is high.
To achieve these goals, the technical solution adopted in the present invention is as follows:
A kind of energy back laser welding power-supply system, comprise the central control unit run for controlling whole power-supply system, for starting the enable control unit of the bright dipping sending laser, for adjusting the soft start unit of voltage, the enable control unit of described bright dipping and described soft start unit are electrically connected with described central control unit respectively, and described energy back laser welding power-supply system also comprises:
For detecting and the current control unit of feedback current, described current control unit is electrically connected by fieldbus and described central control unit, and current signal transfers to described central control unit by described current control unit;
For detecting the energy signal of the laser sent and feeding back energy measuring and the feedback unit of this energy signal, described energy measuring and feedback unit are electrically connected by fieldbus and described central control unit, laser energy signal transfers to described central control unit by described energy measuring and feedback unit and processes, then superposes with described current signal.
Preferably, described energy back laser welding power-supply system also comprises:
For controlling the waveform pwm unit of lasing fluorescence duration each time;
For controlling the lighting light-off control unit of lasing fluorescence and extinguishing;
For controlling the water pump control unit of water pump energising work and power-off;
For transmitting the input/output interface control unit of data;
During for controlling to charge, the slow liter increasing gradually and reduce gradually of voltage is slow falls control unit;
For controlling the xenon lamp frequency control unit of lasing fluorescence frequency;
For exporting the system mode output unit of the system state data of described energy back laser welding power-supply system;
Described waveform pwm unit, lighting light-off control unit, water pump control unit, input/output interface control unit, slow liter slowly fall control unit, xenon lamp frequency control unit and system mode output unit and are electrically connected with described central control unit respectively.
Preferably, described energy back laser welding power-supply system also comprises: liquid crystal display, input unit and the extended interface unit for being connected personal computer.
Preferably, described input unit comprises keyboard.
Preferably, described extended interface unit comprises RS232 communication unit.
With prior art mutually this, the beneficial effect of energy back laser welding power-supply system of the present invention is: current control unit of the present invention can detect and fed-back current signals, described energy measuring and feedback unit can the actual luminous energy signals of feedback laser, described central control unit receives this energy signal and current signal, and control xenon lamp according to this energy signal and current signal, thus improve the stability of xenon lamp.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of energy back laser welding power-supply system of the present invention.
Embodiment
Below in conjunction with specific embodiment, the present invention is described further.
Refer to shown in Fig. 1, energy back laser welding power-supply system of the present invention, comprising:
For controlling the central control unit that whole power-supply system is run;
For starting the enable control unit of the bright dipping sending laser;
For adjusting the soft start unit of voltage;
For detecting and the current control unit of feedback current;
For detecting the energy signal of the laser sent and feeding back energy measuring and the feedback unit of this energy signal;
For controlling the waveform pwm unit of lasing fluorescence duration each time;
For controlling the lighting light-off control unit of lasing fluorescence and extinguishing;
For controlling the water pump control unit of water pump energising work and power-off;
For transmitting the input/output interface control unit of data;
During for controlling to charge, the slow liter increasing gradually and reduce gradually of voltage is slow falls control unit;
For controlling the xenon lamp frequency control unit of lasing fluorescence frequency;
For exporting the system mode output unit of the system state data of described energy back laser welding power-supply system;
For connecting the extended interface unit of personal computer, described extended interface unit comprises RS232 communication unit;
For the input unit of logging data, described input unit comprises keyboard;
For the liquid crystal display shown.
The enable control unit of described bright dipping, soft start unit, current control unit, energy measuring and feedback unit, waveform pwm unit, lighting light-off control unit, water pump control unit, input/output interface control unit, slow liter are slowly fallen control unit, xenon lamp frequency control unit, system mode output unit, extended interface unit, input unit and liquid crystal display and are electrically connected with described central control unit respectively.
Operation principle of the present invention is: the enable control unit of described bright dipping sends enable signal to described central control unit, central control unit sends according to this enable signal control lighting light-off control unit and turns on light or close modulating signal, the current signal transfer extremely described central control unit that described current control unit will detect, laser energy Signal transmissions to described central control unit processes by described energy measuring and feedback unit, superpose with described current signal again, described central control unit receives this energy signal and current signal, and control xenon lamp according to this energy signal and current signal.Complex energy feedback of the present invention and the luminescence of Current Feedback Control xenon lamp, improve the stability of xenon lamp, and then improve Product jointing quality.
In the laser application that some is high-end, the stability of user to pulsed laser energy proposes stricter requirement, for this reason, the present invention increases energy negative feedback funtion part and then realizes the energy negative feedback control of user's laser on the basis of existing Laser Power Devices, achieve the standardization of laser processing technology, the instability of pulsed laser energy is controlled within 3%.The degenerative operation principle of energy of the present invention increases an energy testing apparatus at the output of laser, be used for detecting the size of Output of laser energy, and real-time for this signal is fed back to central control unit, compare with the energy of theory setting, form a closed-loop control system, reach the object accurately controlling laser energy and export.
Schematically above be described the present invention and execution mode thereof, this description does not have restricted, and also just one of the embodiments of the present invention shown in accompanying drawing, actual structure is not limited thereto.So, if those of ordinary skill in the art enlightens by it, when not departing from the invention aim, designing the frame mode similar to this technical scheme and embodiment without creationary, all should protection scope of the present invention be belonged to.
Claims (5)
1. an energy back laser welding power-supply system, comprise the central control unit run for controlling whole power-supply system, for starting the enable control unit of the bright dipping sending laser, for adjusting the soft start unit of voltage, the enable control unit of described bright dipping and described soft start unit are electrically connected with described central control unit respectively, it is characterized in that, described energy back laser welding power-supply system also comprises:
For detecting and the current control unit of feedback current, described current control unit is electrically connected by fieldbus and described central control unit, and current signal transfers to described central control unit by described current control unit;
For detecting the energy signal of the laser sent and feeding back energy measuring and the feedback unit of this energy signal, described energy measuring and feedback unit are electrically connected by fieldbus and described central control unit, laser energy signal transfers to described central control unit by described energy measuring and feedback unit and processes, then superposes with described current signal.
2. energy back laser welding power-supply system as claimed in claim 1, it is characterized in that, described energy back laser welding power-supply system also comprises:
For controlling the waveform pwm unit of lasing fluorescence duration each time;
For controlling the lighting light-off control unit of lasing fluorescence and extinguishing;
For controlling the water pump control unit of water pump energising work and power-off;
For transmitting the input/output interface control unit of data;
During for controlling to charge, the slow liter increasing gradually and reduce gradually of voltage is slow falls control unit;
For controlling the xenon lamp frequency control unit of lasing fluorescence frequency;
For exporting the system mode output unit of the system state data of described energy back laser welding power-supply system;
Described waveform pwm unit, lighting light-off control unit, water pump control unit, input/output interface control unit, slow liter slowly fall control unit, xenon lamp frequency control unit and system mode output unit and are electrically connected with described central control unit respectively.
3. energy back laser welding power-supply system as claimed in claim 1, it is characterized in that, described energy back laser welding power-supply system also comprises: liquid crystal display, input unit and the extended interface unit for being connected personal computer.
4. energy back laser welding power-supply system as claimed in claim 3, it is characterized in that, described input unit comprises keyboard.
5. energy back laser welding power-supply system as claimed in claim 3, it is characterized in that, described extended interface unit comprises RS232 communication unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410507732.XA CN104332813A (en) | 2014-09-28 | 2014-09-28 | Energy feedback laser welding power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410507732.XA CN104332813A (en) | 2014-09-28 | 2014-09-28 | Energy feedback laser welding power supply system |
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| CN104332813A true CN104332813A (en) | 2015-02-04 |
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| CN201410507732.XA Pending CN104332813A (en) | 2014-09-28 | 2014-09-28 | Energy feedback laser welding power supply system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356213A (en) * | 2015-12-09 | 2016-02-24 | 山东镭之源激光科技股份有限公司 | Intelligent carbon dioxide laser power supply with energy feedback |
| CN105955093A (en) * | 2015-07-09 | 2016-09-21 | 深圳市普达镭射科技有限公司 | YAG laser welding power supply control system having online fault diagnosis and debugging functions |
| CN111283327A (en) * | 2020-03-04 | 2020-06-16 | 首钢京唐钢铁联合有限责任公司 | Laser source soft starter control method, control circuit, laser welding machine and medium |
| CN113649694A (en) * | 2021-08-12 | 2021-11-16 | 武汉逸飞激光股份有限公司 | Welding method for current collector of cylindrical battery |
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| CN201191936Y (en) * | 2008-01-23 | 2009-02-04 | 德州三和电器有限公司 | Xenon electronic rectifier for flood lighting |
| CN103182149A (en) * | 2011-12-30 | 2013-07-03 | 武汉奇致激光技术有限公司 | Combination laser therapy apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201191936Y (en) * | 2008-01-23 | 2009-02-04 | 德州三和电器有限公司 | Xenon electronic rectifier for flood lighting |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105955093A (en) * | 2015-07-09 | 2016-09-21 | 深圳市普达镭射科技有限公司 | YAG laser welding power supply control system having online fault diagnosis and debugging functions |
| CN105356213A (en) * | 2015-12-09 | 2016-02-24 | 山东镭之源激光科技股份有限公司 | Intelligent carbon dioxide laser power supply with energy feedback |
| CN111283327A (en) * | 2020-03-04 | 2020-06-16 | 首钢京唐钢铁联合有限责任公司 | Laser source soft starter control method, control circuit, laser welding machine and medium |
| CN113649694A (en) * | 2021-08-12 | 2021-11-16 | 武汉逸飞激光股份有限公司 | Welding method for current collector of cylindrical battery |
| CN113649694B (en) * | 2021-08-12 | 2024-02-27 | 武汉逸飞激光股份有限公司 | Welding method for cylindrical battery current collector |
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Application publication date: 20150204 |