CN104400229B - Optical-fiber laser cutting machine energy hole switched system - Google Patents
Optical-fiber laser cutting machine energy hole switched system Download PDFInfo
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- CN104400229B CN104400229B CN201410416221.7A CN201410416221A CN104400229B CN 104400229 B CN104400229 B CN 104400229B CN 201410416221 A CN201410416221 A CN 201410416221A CN 104400229 B CN104400229 B CN 104400229B
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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
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/062—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam
- B23K26/0626—Energy control of the laser beam
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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
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
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Abstract
The invention provides a kind of optical-fiber laser cutting machine actual energy and control switched system, comprise: a controlled control circuit, this controlled control circuit receives the control signal that the output control circuit in the digital control system of optical-fiber laser cutting machine exports, make optical fiber laser power supply U4 be operated in Non-follow control debugging laser state or Systematical control laser energy automatic control state, and export different capacity corresponding to two states.It is the improvement carrying out extension function on optical-fiber laser machine digital control system master controller that this optical-fiber laser cutting machine actual energy controls switched system, control circuit fractional hardware cost is low, control electric wiring and realize optical fiber laser power supply output high-low power laser simple and reliablely, control procedure handoff-security interlocks.In actual field debugging and actual use optical-fiber laser cutting machine cuts sheet material process, can ensure that operative employee debugs laser beam easy to operate, safe and reliable.
Description
Technical field
The present invention relates to a kind of optical-fiber laser cutting machine, especially a kind of optical-fiber laser cutting machine actual energy controls switched system.
Background technology
Some panel beating industry is due to the needs of product, often to cut multiple thin metal blank, the shape small size thin plate sheet metal component of cutting different size, by the optical-fiber laser power supply of configuration different capacity size, can high-quality carbon steel plate, corrosion resistant plate, the thin plates such as aluminium sheet, in these industries following: cabinet manufacture, Aero-Space, grain machinery, textile machine, engineering machinery, locomotive manufacturing, agriculture and forestry machinery, elevator manufactures, special car, household electrical appliance manufacture, tool processes, petroleum machinery manufactures, food machinery, decorative advertisement, the various machine-building processing industries such as laser laser job shop are used widely.Optical-fiber laser cutting machine is the one-time process revolution of panel beating, is " machining center " in panel beating; Optical-fiber laser cutting machine flexibility degree is high, and cutting speed is fast, and production efficiency is high, and life cycle of the product is short, for client has won market widely.Optical-fiber laser cutting machine is without cutting force, and processing is without distortion; Without tool wear, adaptability for materials is good; No matter be simple or complex parts, can with laser once accurate Quick-forming complete cutting; Its joint-cutting is narrow, and cut quality is good, automaticity is higher, easy and simple to handle, and labour intensity is low, does not pollute; Can realize cutting automatic nesting, jacking, improve stock utilization, production cost is low, good in economic efficiency.
Optical-fiber laser cutting machine actual energy control switched system is the important component part in optical-fiber laser cutting machine, the general digital control system of existing optical-fiber laser cutting machine master controller U3, this digital control system can realize laser cutting machine common function needs, optical-fiber laser cutting machine needs the concentric departure degree of debugging laser beam before formal cutting, needs to carry out necessary inching.The optical fiber laser power supply of reason digital control system main controller controls exports the laser of full power, is difficult to the concentric departure degree of bug check laser beam, and operative employee's danger close relatively in the debugging laser beam process, causes to carry out laser cutting well.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of optical-fiber laser cutting machine energy hole switched system is provided, can realize exporting the interlocking of high and low power laser handoff-security, use in optical-fiber laser cutting machine process in actual field debugging, it is easy to operate that operative employee debugs the laser homocentric pencil of rays, safe and reliable, control optical fiber laser output power of power supply in actual cutting process and stablize.The technical solution used in the present invention is:
A kind of optical-fiber laser cutting machine energy hole switched system, comprise: a controlled control circuit, this controlled control circuit receives the control signal that the output control circuit in the digital control system of optical-fiber laser cutting machine exports, make optical fiber laser power supply U4 be operated in Non-follow control debugging laser state or Systematical control laser energy automatic control state, and export different capacity corresponding to two states.
Further, described output control circuit comprises coil, the coil of the second relay K A2, the first button SB1 of the first relay K A1; One termination first dc source 1DC positive voltage of the first relay K A1 coil, after the first normally-closed contact KA2-1 of the other end and the second relay K A2 is connected in series, then holds with the zero potential 0V that the first button SB1 is connected in series to the first dc source 1DC; One termination first dc source 1DC positive voltage of the second relay K A2 coil, is connected to the output control terminal of master controller U3 after the first normally-closed contact KA1-1 series connection of the other end and the first relay K A1.
Further, described controlled control circuit connects the optical fiber laser power control circuit being arranged on optical fiber laser power supply U4 input; Controlled control circuit comprises the second normally opened contact KA1-2, the 3rd normally opened contact KA1-3 of the first relay K A1, the 4th normally opened contact KA1-4, the second normally opened contact KA2-2 of the second relay K A2, the 3rd normally opened contact KA2-3, the 4th normally opened contact KA2-4; Optical fiber laser power control circuit comprises laser instrument enable signal port, laser output power analog input signal port, laser instrument triggering signal port, laser instrument overall situation switch controlling signal port.
One termination second dc source 2DC second positive voltage of the second normally opened contact KA1-2 of the first relay K A1, another termination laser output power analog input signal port;
The one termination first dc source 1DC positive voltage of the 3rd normally opened contact KA1-3 of the first relay K A1, the laser instrument triggering signal port of another termination optical fiber laser power supply U4;
The one termination first dc source 1DC positive voltage of the 4th normally opened contact KA1-4 of the first relay K A1, the laser instrument overall situation switch controlling signal port of another termination optical fiber laser power supply U4;
One termination second dc source 2DC first positive voltage of the second normally opened contact KA2-2 of the second relay K A2, another termination laser output power analog input signal port;
The one termination first dc source 1DC positive voltage of the 3rd normally opened contact KA2-3 of the second relay K A2, the laser instrument triggering signal port of another termination optical fiber laser power supply U4;
The 4th normally opened contact KA2-4 mono-termination first dc source 1DC positive voltage of the second relay K A2, the laser instrument overall situation switch controlling signal port of another termination optical fiber laser power supply U4;
Second dc source 2DC second positive voltage is less than the second dc source 2DC first positive voltage, these two voltage signals, as two different laser output power analog input signals, make optical fiber laser power supply U4 export to correspond to the different capacity of Non-follow control debugging laser state or Systematical control laser energy automatic control state.
Further, the laser instrument enable signal port of optical fiber laser power control circuit is connected to the first dc source 1DC positive voltage by cooling-water machine signaling interface.
Further, the first dc source 1DC comprises a first AC/DC converter CVT1, exports a 24v voltage as the first dc source 1DC positive voltage.Second dc source 2DC comprises a second AC/DC converter CVT2, exports a 10v voltage as the second dc source 2DC first positive voltage, then by obtaining 1v voltage after electric resistance partial pressure as the second dc source 2DC second positive voltage.The zero potential 0V end of the first dc source 1DC is held with the zero potential 0V1 of the second dc source 2DC and is connected.
Advantage of the present invention: it is the improvement carrying out extension function on optical-fiber laser machine digital control system master controller that this optical-fiber laser cutting machine actual energy controls switched system, control circuit fractional hardware cost is low, control electric wiring and realize optical fiber laser power supply output high-low power laser simple and reliablely, control procedure handoff-security interlocks.In actual field debugging and actual use optical-fiber laser cutting machine cuts sheet material process, can ensure that operative employee debugs laser beam easy to operate, safe and reliable.
Accompanying drawing explanation
Fig. 1 is the digital control system main controller controls electrical schematic diagram that fine laser cutting machine actual energy of the present invention controls switched system.
Fig. 2 is the dc source schematic diagram that optical-fiber laser cutting machine actual energy of the present invention controls switched system.
Fig. 3 is the optical fiber laser Energy control electrical schematic diagram that optical-fiber laser cutting machine actual energy of the present invention controls switched system.
Detailed description of the invention
Below in conjunction with concrete drawings and Examples, the invention will be further described.
The present invention proposes a kind of optical-fiber laser cutting machine actual energy and control switched system, before introducing this energy hole switched system, first one is done to optical-fiber laser cutting machine and simply introduce.
As shown in Figure 1, optical-fiber laser cutting machine mainly comprises digital control system (including master controller U3, input control circuit 10, output control circuit 20, servo drive circuit etc.), actuator servo electric system, cooling-water machine system, optical fiber laser power-supply system, light modulation light path system etc.And light modulation light path system to be also laser cutting parameter very crucial, directly affect the cutting section quality of optical-fiber laser cutting machine.Described optical-fiber laser cutting machine actual energy controls switched system and has been mainly used to the concentric departure degree of debugging laser beam before formal cutting, completes the inching to laser beams coaxial easily.
The digital control system of optical-fiber laser cutting machine comprises master controller U3, and master controller U3 connects X-axis servomotor M1 by X-axis servo controller U1, and X-axis servomotor M1 drives the dolly crossbeam of optical-fiber laser cutting machine to move in the X-axis direction; Master controller U3 connects Y-axis servomotor M2 by Y-axis servo controller U2; Y-axis servomotor M2 drives the cart end carriage of optical-fiber laser cutting machine to move in the Y-axis direction.
Master controller U3 connects an input control circuit 10, inputs emergent stop signal and dolly crossbeam at the positive and negative limit signal of X-direction and the cart end carriage positive and negative limit signal in Y direction by input control circuit 10 to master controller U3.
Input control circuit 10 comprises the first photoelectric proximity switch IPS1, the second photoelectric proximity switch IPS2, the 3rd photoelectric proximity switch IPS3, the 4th photoelectric proximity switch IPS4; Positive voltage 24V with the 0V end of power end respectively with the first dc source 1DC of above-mentioned four photoelectric proximity switch is connected, and control end is connected respectively to the input control end of master controller U3.Received input control end 1 pin and 14 pin of master controller U3 by the 3rd photoelectric proximity switch IPS3, the 4th photoelectric proximity switch IPS4 respectively, detect the positive and negative limit signal of dolly crossbeam in X-direction; Be connected respectively to 2 pin and 15 pin of master controller U3 input control end by the first photoelectric proximity switch IPS1, the second photoelectric proximity switch IPS2, detect the positive and negative limit signal of cart end carriage in Y direction.The dolly crossbeam of lathe can move left and right along X-axis, when encountering left limit or right limit, the low level signal that 3rd photoelectric proximity switch IPS3 or the 4th photoelectric proximity switch IPS4 is input to master controller U3 input control end disconnects, the dolly crossbeam of lathe can not move towards this direction again, can only move in the opposite direction.The cart end carriage of lathe can move forward and backward along Y-axis, when encounter front limit or rear spacing time, the low level signal that first photoelectric proximity switch IPS1 or the second photoelectric proximity switch IPS2 is input to master controller U3 input control end disconnects, cart end carriage can not move towards this direction again, can only move in the opposite direction.
Can suddenly stop fast in moving process or cutting process in order to lathe can be made, a scram button SB0 is devised in this input control circuit 10, one end of described scram button SB0 connects the zero potential 0V end of the first dc source 1DC, and the other end is connected with one end of the normally opened contact KA4-1 of the 4th relay K A4; The other end of the normally opened contact KA4-1 of the 4th relay K A4 is connected with one end of the normally opened contact KA3-1 of the 3rd relay K A3, and the other end of the normally opened contact KA3-1 of the 3rd relay K A3 is connected to input control end 3 pin of master controller U3.One end of 4th relay K A4 coil connects the first dc source 1DC positive voltage 24V and holds, and the other end connects the alarm output of Y-axis servo controller U2; One end of 3rd relay K A3 coil connects the first dc source 1DC positive voltage 24V and holds, and the other end connects the alarm output of X-axis servo controller U1.When lathe is in moving process or cutting process, if the scram button SB0 of push panel, the urgency being input to master controller U3 stops low level signal disconnection, lathe emergent stopping everything.Another situation is exactly, when X-axis servo controller U1 or Y-axis servo controller U2 has alarm signal to export, then can disconnect the power supply of the 4th relay K A4 coil or the 3rd relay K A3 coil, thus the normally opened contact KA4-1 of the 4th relay K A4 or the normally opened contact KA3-1 of the 3rd relay K A3 is disconnected, also low level signal is stopped with regard to being disconnected the urgency being input to master controller U3 input control end, lathe can be stopped fast, prevent from causing damage machine tool component.
Master controller U3 connects an output control circuit 20, the controlled control circuit 30 controlling switched system to Fig. 3 optical-fiber laser cutting machine actual energy by output control circuit 20 sends control signal, controlled control circuit 30 controls to export unlike signal voltage and is input to optical fiber laser power control circuit 40, optical fiber laser power supply U4 is made to be operated in Non-follow control debugging laser state or Systematical control laser energy automatic control state, and export different capacity corresponding to two states, finally can control optical fiber laser power supply U4 and export different capacity laser.This digital control system master controller U3 is by first dc source 1DC(0V, 24V) supply power.
Particularly, output control circuit 20 comprises coil, the coil of the second relay K A2, the first button SB1 of the first relay K A1; After one termination first dc source 1DC positive voltage 24v of the first relay K A1 coil, the first normally-closed contact KA2-1 of the other end and the second relay K A2 are connected in series, then hold with the zero potential 0V that the first button SB1 is connected in series to the first dc source 1DC; One termination first dc source 1DC positive voltage 24v of the second relay K A2 coil, is connected to output control terminal 14 pin of master controller U3 after the first normally-closed contact KA1-1 series connection of the other end and the first relay K A1.These control circuits realize Non-follow control debugging laser and the two kinds of duty interlockings of Systematical control laser energy switch.
As shown in Figure 3, controlled control circuit 30 connects the optical fiber laser power control circuit 40 being arranged on optical fiber laser power supply U4 input.Controlled control circuit 30 comprises the second normally opened contact KA1-2, the 3rd normally opened contact KA1-3 of the first relay K A1, the 4th normally opened contact KA1-4, the second normally opened contact KA2-2 of the second relay K A2, the 3rd normally opened contact KA2-3, the 4th normally opened contact KA2-4.Optical fiber laser power control circuit 40 comprises laser instrument enable signal port, laser output power analog input signal port, laser instrument triggering signal port, laser instrument overall situation switch controlling signal port, draws by DB15 core connector.The laser instrument enable signal port of optical fiber laser power control circuit 40 is connected to the first dc source 1DC positive voltage 24v by cooling-water machine signaling interface.Cooling-water machine is for laser power supply provides the refrigerator appliance of recirculated cooling water.
The one termination second dc source 2DC second positive voltage 1v of the second normally opened contact KA1-2 of the first relay K A1, another termination laser output power analog input signal port; The one termination first dc source 1DC positive voltage 24v of the 3rd normally opened contact KA1-3 of the first relay K A1, the laser instrument triggering signal port of another termination optical fiber laser power supply U4; The laser instrument overall situation switch controlling signal port of the one termination first dc source 1DC positive voltage 24v of the 4th normally opened contact KA1-4 of the first relay K A1, another termination optical fiber laser power supply U4.The one termination second dc source 2DC first positive voltage 10v of the second normally opened contact KA2-2 of the second relay K A2, another termination laser output power analog input signal port; The one termination first dc source 1DC positive voltage 24v of the 3rd normally opened contact KA2-3 of the second relay K A2, the laser instrument triggering signal port of another termination optical fiber laser power supply U4; The laser instrument overall situation switch controlling signal port of the 4th normally opened contact KA2-4 mono-termination first dc source 1DC positive voltage 24v of the second relay K A2, another termination optical fiber laser power supply U4.
Second dc source 2DC second positive voltage is less than the second dc source 2DC first positive voltage, these two voltage signals, as two different laser output power analog input signals, make optical fiber laser power supply U4 export to correspond to the different capacity of Non-follow control debugging laser state or Systematical control laser energy automatic control state.
Described in concrete control is implemented as follows:
When debugging laser by Non-follow control, the first inching button SB1 presses the power supply of connection first relay K A1, and the first normally-closed contact KA1-1 of the first relay K A1 disconnects the power supply of the second relay K A2; Now, the second normally opened contact KA1-2 of the first relay K A1, the 3rd normally opened contact KA1-3, the 4th normally opened contact KA1-4 are all closed, and the second normally opened contact KA2-2 of the second relay K A2, the 3rd normally opened contact KA2-3, the 4th normally opened contact KA2-4 all disconnect;
Now, laser output power analog input signal, laser instrument triggering signal, laser instrument overall situation switch controlling signal is respectively 1v voltage, 24v voltage, 24v voltage, is input to laser output power analog input signal port 7 pin, laser instrument triggering signal port 3 pin, laser instrument overall situation switch controlling signal port one pin respectively; Treat that cooling-water machine signal is normal, be input to the laser instrument enable signal port one 0 pin 24v voltage of optical fiber laser power supply U4 by cooling-water machine signaling interface; Receive after these control voltage signals until optical fiber laser power supply U4, optical fiber laser power supply U4 exports about 50W laser, and laser power is less, safer, then adjustable laser beams coaxial.
When by Systematical control laser energy, the output control terminal 14 pin Output of laser cutoff signal of optical-fiber laser cutting machine master controller U3 connects the power supply of the second relay K A2, and the normally-closed contact KA2-1 of the second relay K A2 disconnects the power supply of the first relay K A1; Now, the second normally opened contact KA2-2 of the second relay K A2, the 3rd normally opened contact KA2-3, the 4th normally opened contact KA2-4 are all closed, and the second normally opened contact KA1-2 of the first relay K A1, the 3rd normally opened contact KA1-3, the 4th normally opened contact KA1-4 all disconnect;
Now, laser output power analog input signal, laser instrument triggering signal, laser instrument overall situation switch controlling signal is respectively 10v voltage, 24v voltage, 24v voltage, is input to laser output power analog input signal port 7 pin, laser instrument triggering signal port 3 pin, laser instrument overall situation switch controlling signal port one pin respectively; Treat that cooling-water machine signal is normal, be input to the laser instrument enable signal port one 0 pin 24v voltage of optical fiber laser power supply U4 by cooling-water machine signaling interface; Receive after these control voltage signals meet trigger condition until optical fiber laser power supply U4, optical fiber laser power supply U4 exports about 500W laser can carry out cuts sheet material.
When cooling-water machine is reported to the police or cooling-water machine does not open, cooling-water machine signaling interface can disconnect the 24v voltage of the laser instrument enable signal port being input to optical fiber laser power supply U4, and optical fiber laser power supply can not power output, to protect optical fiber laser.Outer triggering signal can not meet trigger condition, and optical fiber laser power supply can not Output of laser.
Power unit of the present invention is participated in the Fig. 2: the first dc source 1DC and is comprised a first AC/DC converter CVT1, exports a 24v voltage as the first dc source 1DC positive voltage.Second dc source 2DC comprises a second AC/DC converter CVT2, exports a 10v voltage as the second dc source 2DC first positive voltage, then by obtaining 1v voltage after two electric resistance partial pressures as the second dc source 2DC second positive voltage.In figure 3, the zero potential 0V end of the first dc source 1DC is held with the zero potential 0V1 of the second dc source 2DC and is connected.
First AC/DC converter CVT1 and the second AC/DC converter CVT2 can adopt switch power module.
Above-mentioned energy hole switched system can be debugged laser by Non-follow control and control to export different DC voltage with Systematical control laser energy output switching.Accept manual control button to control to export the laser output power analog input signal port that direct current 1V voltage is input to optical fiber laser power supply U4 when debugging laser, optical fiber laser power supply U4 exports about 50W laser for debugging coaxial beam; When normal cutting by the digital control system of laser cutting machine in control to export the laser output power analog input signal port that direct current 10V voltage is input to optical fiber laser power supply U4, optical fiber laser power supply U4 exports about 500W laser power for normal cuts sheet material.This low-power optical-fiber laser cutting machine actual energy control system entirety controls simple, gets off reliable and stable through actual prolonged application.
Claims (4)
1. an optical-fiber laser cutting machine energy hole switched system, it is characterized in that, comprise: a controlled control circuit (30), this controlled control circuit (30) receives the control signal that the output control circuit (20) in the digital control system of optical-fiber laser cutting machine exports, make optical fiber laser power supply U4 be operated in Non-follow control debugging laser state or Systematical control laser energy automatic control state, and export different capacity corresponding to two states;
Described output control circuit (20) comprises coil, the coil of the second relay K A2, the first button SB1 of the first relay K A1; One termination first dc source 1DC positive voltage of the first relay K A1 coil, after the first normally-closed contact KA2-1 of the other end and the second relay K A2 is connected in series, then holds with the zero potential 0V that the first button SB1 is connected in series to the first dc source 1DC; One termination first dc source 1DC positive voltage of the second relay K A2 coil, is connected to the output control terminal of master controller U3 after the first normally-closed contact KA1-1 series connection of the other end and the first relay K A1.
2. optical-fiber laser cutting machine energy hole switched system as claimed in claim 1, is characterized in that:
Be arranged on the optical fiber laser power control circuit (40) of optical fiber laser power supply U4 input the connection of described controlled control circuit (30);
Controlled control circuit (30) comprises the second normally opened contact KA1-2, the 3rd normally opened contact KA1-3 of the first relay K A1, the 4th normally opened contact KA1-4, the second normally opened contact KA2-2 of the second relay K A2, the 3rd normally opened contact KA2-3, the 4th normally opened contact KA2-4;
Optical fiber laser power control circuit (40) comprises laser instrument enable signal port, laser output power analog input signal port, laser instrument triggering signal port, laser instrument overall situation switch controlling signal port;
One termination second dc source 2DC second positive voltage of the second normally opened contact KA1-2 of the first relay K A1, another termination laser output power analog input signal port;
The one termination first dc source 1DC positive voltage of the 3rd normally opened contact KA1-3 of the first relay K A1, the laser instrument triggering signal port of another termination optical fiber laser power supply U4;
The one termination first dc source 1DC positive voltage of the 4th normally opened contact KA1-4 of the first relay K A1, the laser instrument overall situation switch controlling signal port of another termination optical fiber laser power supply U4;
One termination second dc source 2DC first positive voltage of the second normally opened contact KA2-2 of the second relay K A2, another termination laser output power analog input signal port;
The one termination first dc source 1DC positive voltage of the 3rd normally opened contact KA2-3 of the second relay K A2, the laser instrument triggering signal port of another termination optical fiber laser power supply U4;
The 4th normally opened contact KA2-4 mono-termination first dc source 1DC positive voltage of the second relay K A2, the laser instrument overall situation switch controlling signal port of another termination optical fiber laser power supply U4;
Second dc source 2DC second positive voltage is less than the second dc source 2DC first positive voltage, these two voltage signals, as two different laser output power analog input signals, make optical fiber laser power supply U4 export to correspond to the different capacity of Non-follow control debugging laser state or Systematical control laser energy automatic control state.
3. optical-fiber laser cutting machine energy hole switched system as claimed in claim 2, is characterized in that:
The laser instrument enable signal port of optical fiber laser power control circuit (40) is connected to the first dc source 1DC positive voltage by cooling-water machine signaling interface.
4. optical-fiber laser cutting machine energy hole switched system as claimed in claim 2 or claim 3, is characterized in that:
First dc source 1DC comprises a first AC/DC converter CVT1, exports a 24v voltage as the first dc source 1DC positive voltage;
Second dc source 2DC comprises a second AC/DC converter CVT2, exports a 10v voltage as the second dc source 2DC first positive voltage, then by obtaining 1v voltage after electric resistance partial pressure as the second dc source 2DC second positive voltage;
The zero potential 0V end of the first dc source 1DC is held with the zero potential 0V1 of the second dc source 2DC and is connected.
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| CN106975829A (en) * | 2017-05-27 | 2017-07-25 | 无锡市南方电器制造有限公司 | The miniature laser of three-dimensional robot CUT indicates system and laser designation method |
| CN112960098A (en) * | 2021-02-23 | 2021-06-15 | 中国人民解放军63660部队 | Aerostat mooring rope cutting control system triggered by laser |
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