CN106001950B - For the power control system and laser cutting device of industrial lasers cutter device - Google Patents
For the power control system and laser cutting device of industrial lasers cutter device Download PDFInfo
- Publication number
- CN106001950B CN106001950B CN201610580513.3A CN201610580513A CN106001950B CN 106001950 B CN106001950 B CN 106001950B CN 201610580513 A CN201610580513 A CN 201610580513A CN 106001950 B CN106001950 B CN 106001950B
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- China
- Prior art keywords
- control module
- power control
- laser
- cutting device
- control system
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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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
- B23K26/707—Auxiliary equipment for monitoring laser beam transmission optics
-
- 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
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The present invention relates to laser cutting device control field, more particularly to for the power control system and laser cutting device of industrial lasers cutter device.Control circuit is itself divided into internal control module and external control module by the power control system of laser cutting device provided by the invention, internal control module and external control module are physically separated using high speed photo coupling simultaneously, in this way, the switch optical signal and the first optical power control signal that controller is sent out all are transferred to external control module by optocoupler, controlled laser device is further sent to after external control module is handled, it thus can effectively avoid the external disturbance that internal control module is brought by laser instantaneous high pressure, also the internal control module component for avoiding price more expensive is destroyed by instantaneous high pressure.
Description
Technical field
The present invention relates to laser cutting device control field, particularly for the power control system of industrial lasers cutter device
System and laser cutting device.
Background technology
Laser cutting refers to the laser that laser is launched being focused into the laser beam of high power density through light path system, and
Being irradiated to workpiece surface makes workpiece reach fusing point or boiling point, as light beam and the movement of workpiece relative position finally form material
Joint-cutting, so as to reach the cutting mode of cutting purpose；Compared with traditional cutting mode, the mode of laser cutting is replaced using light beam
Traditional mechanical blades have precision high, and cutting is fast, pattern limitation not slit, can Automatic Typesetting, save material, notch is put down
It is sliding, the series of advantages feature such as processing cost is low, thus be more and more widely used to industrial cutting field；
CO2 lasers are one of common gas lasers, are usually adjusted by adjusting the laser power of CO2 laser tubes
CO2 lasers emit the power of laser, and the laser power the big, and it is stronger that CO2 lasers emit laser, conversely, laser power
Smaller, it is weaker that CO2 lasers emit laser.Fig. 1 gives the control principle drawing of typical CO2 lasers, wherein, switch
Whether optical signal control laser excites；Analog signals（0~5V）Laser output watt level is controlled, CO2 on the market swashs at present
Light power controller is mainly same to cross I/O signal（Switch optical signal）The switch of laser is controlled, then passes through dedicated DA chips
It carries out digital-to-analogue conversion and generates analog signals to control the luminous power of CO2 laser tubes.But since CO2 laser tubes to be made are sent out
Light needs to apply the high pressure of a short time to it（Usual 30,000 volts or so）, after lasing fluorescence triggering, this voltage just drops rapidly
It is low；Due to this characteristic of CO2 lasers, extremely easily the front-end controlling circuit being attached thereto is damaged or interfered, it is special
It is not when safety does not correctly connect geodesic to CO2 lasers, the interference that front-end controlling circuit is subject to is especially prominent, seriously
When there is also air directly breakdown sparking the phenomenon that.Before this interference can be also directly concatenated by signal wire or underground
It holds in control circuit, can cause high-voltage breakdown to the component of control circuit at this time；So as to seriously affect entire control circuit
Stability and reliability.
Invention content
The goal of the invention of the present invention is：For the height in existing laser cutting system, generated when being shone due to laser
Pressure-volume easily to its power control system generate electromagnetic interference and be easy to cause power control system high pressure, overcurrent damage is asked
Topic provides a kind of strong antijamming capability, the laser cutting device power control system with defencive function.
To achieve these goals, the technical solution adopted by the present invention is：
A kind of power control system of laser cutting device, it is described outer including internal control module and external control module
Portion's control module is directly connect with controlled laser device, and the internal control module and external control module are grounded respectively；
The internal control module includes controller, and the controller is used to send switch optical signal and first to laser
Optical power control signal；
The external control module includes sequentially connected Schmidt trigger and DA conversion circuits；The schmidt trigger
Device is used to first optical power control signal progress reverse phase being shaped as the second optical power control signal, the DA conversion circuits
For laser will to be sent to after second optical power control signal progress digital-to-analogue conversion；
Pass through light-coupled isolation between the internal control module and external control module.
Preferably, the optocoupler is high speed photo coupling.
Preferably, the controller circuitry is FPGA circuitry.
Preferably, the Schmidt trigger is chip SN74HC14.
Present invention simultaneously provides a kind of laser cutting device, the laser cutting device includes power control as described above
System.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：Laser provided by the invention is cut
Control circuit is itself divided into internal control module and external control module, while using at a high speed by the power control system for cutting device
Internal control module and external control module are physically separated by optocoupler, in this way, the switch optical signal and that controller is sent out
One optical power control signal is all transferred to external control module by optocoupler, is further sent after external control module is handled
To controlled laser device, the external disturbance that internal control module is brought by laser instantaneous high pressure is thus can effectively avoid,
The internal control module component for avoiding price more expensive is destroyed by instantaneous high pressure.
Description of the drawings
Fig. 1 is typical laser power control system functional block diagram in the prior art.
Fig. 2 is laser power control system functional block diagram provided by the invention.
Specific embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
Embodiment 1：As shown in Fig. 2, the present embodiment provides a kind of power control system of laser cutting device, including inside
Control module 1 and external control module 2, the external control module 2 are directly connect with controlled CO2 lasers, the internal control
Molding block 1 and external control module 2 are grounded respectively；
The internal control module 1 includes controller, and in the present embodiment, the controller circuitry is FPGA circuitry 11.Institute
FPGA circuitry 11 is stated for sending switch optical signal and the first optical power control signal to CO2 lasers；
The external control module 2 includes sequentially connected Schmidt trigger 22 and DA conversion circuits 23；The present embodiment
In, the Schmidt trigger 22 is chip SN74HC14, is used for first optical power control signal progress reverse phase is whole
Shape is the second optical power control signal, and the DA conversion circuits 23 are used to second optical power control signal carrying out digital mould
The analog quantity for intending becoming after converting 0-5V is sent to controlled CO2 lasers；
It is isolated between the internal control module 1 and external control module 2 by high speed photo coupling 3, in this way, FPGA circuitry 11
The switch optical signal and the first optical power control signal sent out is all transferred to external control module by the high speed photo coupling 3, then into
One step through external control module 2 processing after be sent to controlled CO2 lasers, thus can effectively avoid internal control module 1 by
The external disturbance brought to CO2 laser instantaneous high pressures.
Embodiment 2：The present embodiment provides a kind of laser cutting device, the laser cutting device is included such as 1 institute of embodiment
The power control system stated.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of power control system of laser cutting device, which is characterized in that including internal control module and external control mould
Block, the external control module are directly connect with controlled laser device, and the internal control module and external control module connect respectively
Ground；
The internal control module includes controller, and the controller is used to send switch optical signal and the first smooth work(to laser
Rate controls signal；
The external control module includes sequentially connected Schmidt trigger and DA conversion circuits；The Schmidt trigger is used
In first optical power control signal progress reverse phase is shaped as the second optical power control signal, the DA conversion circuits are used for
Laser is sent to after second optical power control signal is carried out the analog quantity that digital-to-analogue conversion is 0-5V；
Pass through light-coupled isolation between the internal control module and external control module.
2. power control system according to claim 1, which is characterized in that the optocoupler is high speed photo coupling.
3. power control system according to claim 2, which is characterized in that the controller circuitry is FPGA circuitry.
4. power control system according to claim 1, which is characterized in that the Schmidt trigger is chip
SN74HC14。
5. a kind of laser cutting device, which is characterized in that the laser cutting device is included such as any one of Claims 1-4 institute
The power control system stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610580513.3A CN106001950B (en) | 2016-07-21 | 2016-07-21 | For the power control system and laser cutting device of industrial lasers cutter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610580513.3A CN106001950B (en) | 2016-07-21 | 2016-07-21 | For the power control system and laser cutting device of industrial lasers cutter device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106001950A CN106001950A (en) | 2016-10-12 |
| CN106001950B true CN106001950B (en) | 2018-06-19 |
Family
ID=57116159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610580513.3A Active CN106001950B (en) | 2016-07-21 | 2016-07-21 | For the power control system and laser cutting device of industrial lasers cutter device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106001950B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86103138A (en) * | 1986-04-30 | 1987-11-11 | 西北电讯工程学院 | Sealed tea carbon bioxide laser device using coaxial inner-circulation |
| CN86103133A (en) * | 1986-04-30 | 1987-11-11 | 西北电讯工程学院 | Combinational TEA carbon bioxide laser device |
| CN203853677U (en) * | 2014-03-21 | 2014-10-01 | 中国人民解放军总装备部军械技术研究所 | Portable all-direction laser rust removing instrument |
| CN104638500A (en) * | 2013-11-13 | 2015-05-20 | 中国科学院沈阳计算技术研究所有限公司 | High-voltage receiving control device for high-power CO2 (carbon dioxide) lasers |
| CN205869731U (en) * | 2016-07-21 | 2017-01-11 | 成都福誉科技有限公司 | Power control circuit and laser cutting device of laser cutting device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633547B (en) * | 2013-12-20 | 2017-01-25 | 武汉光迅科技股份有限公司 | Wavelength-tunable external cavity laser |
-
2016
- 2016-07-21 CN CN201610580513.3A patent/CN106001950B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86103138A (en) * | 1986-04-30 | 1987-11-11 | 西北电讯工程学院 | Sealed tea carbon bioxide laser device using coaxial inner-circulation |
| CN86103133A (en) * | 1986-04-30 | 1987-11-11 | 西北电讯工程学院 | Combinational TEA carbon bioxide laser device |
| CN104638500A (en) * | 2013-11-13 | 2015-05-20 | 中国科学院沈阳计算技术研究所有限公司 | High-voltage receiving control device for high-power CO2 (carbon dioxide) lasers |
| CN203853677U (en) * | 2014-03-21 | 2014-10-01 | 中国人民解放军总装备部军械技术研究所 | Portable all-direction laser rust removing instrument |
| CN205869731U (en) * | 2016-07-21 | 2017-01-11 | 成都福誉科技有限公司 | Power control circuit and laser cutting device of laser cutting device |
Non-Patent Citations (1)
| Title |
|---|
| 《大功率射频激光电源功率控制技术研究》;廖斐;《华中科技大学硕士论文》;20120715;第2章至第6章 * |
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| CN106001950A (en) | 2016-10-12 |
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