CN210848836U - Air pressure control device for optical fiber laser cutting - Google Patents
Air pressure control device for optical fiber laser cutting Download PDFInfo
- Publication number
- CN210848836U CN210848836U CN201921615340.XU CN201921615340U CN210848836U CN 210848836 U CN210848836 U CN 210848836U CN 201921615340 U CN201921615340 U CN 201921615340U CN 210848836 U CN210848836 U CN 210848836U
- Authority
- CN
- China
- Prior art keywords
- gas
- cutting
- air pressure
- control device
- air
- Prior art date
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Laser Beam Processing (AREA)
Abstract
The utility model belongs to the field of optical fiber laser cutting, and particularly discloses an air pressure control device for optical fiber laser cutting, which comprises an air source (1), an air pipeline (2), a proportional valve (3), a controller (4), an air ejector (5), an air nozzle (51), an air pressure sensor (52) and a wire (7); the utility model discloses the structure is succinct reasonable, changes auxiliary gas and follows traditional cutting torch spun design, and sets up gas injector (5) alone, makes things convenient for the measurement and the regulation of atmospheric pressure.
Description
Technical Field
The utility model belongs to optic fibre laser cutting field specifically discloses an air pressure control device for optic fibre laser cutting.
Background
When the laser cutting machine is used, the good cutting effect can not be achieved by the aid of various gases, and besides the purity requirement of the auxiliary gas, the high requirement on air pressure is also achieved in the cutting process. In laser cutting, the assist gas must be of sufficient pressure to thoroughly remove the debris from the cut, and typically the gas pressure is reduced a little when cutting a thicker workpiece, and debris sticking to the workpiece will damage the cut edge.
Increasing the gas pressure increases the cutting speed, but after a maximum value is reached, increasing the gas pressure causes the cutting speed to decrease. At high assist gas pressures, the reason for the reduced cutting speed can be attributed to the increased cooling effect of the high gas flow velocity on the laser active region, as well as to the interference of the intermittent shock waves present in the gas flow on the cooling of the laser active region. The presence of non-uniform pressure and temperature in the gas stream can cause variations in the density of the gas flow field. Such a density gradient causes a change in the refractive index within the field, thereby interfering with the focusing of the beam energy, resulting in refocusing or beam divergence. This interference affects the melting efficiency and may sometimes alter the mode structure, resulting in a degradation of the cut quality if the beam diverges too much. Making the spot too large can even have the serious consequence that the cut cannot be made effectively.
The fiber laser machine is a novel fiber laser which is newly developed internationally, outputs a laser beam with high energy density, and is gathered on the surface of a workpiece, so that an area irradiated by a superfine focus light spot on the workpiece is instantly melted and gasified, and the irradiation position of the light spot is moved by a numerical control mechanical system to realize automatic cutting. In the conventional air pressure control equipment of the optical fiber laser machine, auxiliary gas and laser of the cutting machine are emitted from a cutting nozzle, the measurement and adjustment of the air pressure are inconvenient, the set air pressure is often too low when a thick plate is cut, and the set air pressure is often higher when a thin plate is cut, so that the cutting quality is reduced.
SUMMERY OF THE UTILITY MODEL
To above not enough, the utility model discloses an atmospheric pressure control device for optic fibre laser cutting is independent of the cutting torch through the nozzle with the auxiliary air current, makes it gain better measurement and the function of adjusting atmospheric pressure.
The technical scheme of the utility model as follows:
a pneumatic control device for optical fiber laser cutting comprises a gas source, a gas pipeline, a proportional valve, a controller, a gas ejector, a gas nozzle, a pneumatic sensor and a lead; the gas source is connected with a gas inlet of the proportional valve through a gas pipeline; the gas outlet of the proportional valve is connected with the gas ejector through a gas pipeline, and the gas ejector is arranged on the side of the laser cutter; a cutting nozzle is arranged below the laser cutter; a gas nozzle below the gas injector is aligned with a cutting nozzle of the laser cutter; an air pressure sensor is arranged in the gas nozzle; the air pressure sensor is electrically connected with the gas ejector, the controller and the proportional valve through leads; the proportional valve has three stations corresponding to thin plate cutting, middle plate cutting and thick plate cutting respectively. When the cutting nozzle of the laser cutter cuts a thin plate, the middle plate and the thick plate are different (the thin plate is 0.5-2 mm; the thick plate is 4.5-25 mm; and the thick plate is more than 25 mm), the controller controls the proportional valve to be located at different gears, auxiliary gas with different pressures is output through the gas nozzle of the gas ejector, meanwhile, the gas pressure sensor performs actual gas pressure detection, when the pressure is found to be lower than a set value, the gas pressure sensor feeds back signals to the controller, the controller adjusts the proportional valve, the output value of the pressure is increased, and finally the output gas pressure meets the working requirements. The utility model discloses it is rational in infrastructure succinct, through setting up three gear and baroceptor's detection feedback, timely adjustment auxiliary gas's that can be convenient atmospheric pressure for laser cutting process atmospheric pressure parameter is perfect controllable, improves optic fibre laser cutting's precision and quality.
Further, above-mentioned pneumatic control device for optic fibre laser cutting, a temperature sensor is installed to one side of cutting torch, temperature sensor with the controller passes through wire electric connection. Through setting up temperature sensor, can real-time temperature under the survey cutting state, after the temperature transfer gives the controller, through the algorithm design in the controller, can corresponding more meticulous regulation auxiliary gas's atmospheric pressure, prevent that the cutting area is overheated or the subcooling.
Further, the controller of the air pressure control device for optical fiber laser cutting is provided with a display screen.
Further, according to the air pressure control device for optical fiber laser cutting, the display screen is a touch display screen.
Further, in the air pressure control device for fiber laser cutting, the power of the laser cutter is 1000-. Within this power, the present device can exert the best effect.
Further, according to the air pressure control device for optical fiber laser cutting, the air pressure output value of the thin plate cutting station is 2.1-3.2 Mpa; the air pressure output value of the middle plate cutting station is 3.5-4.2 Mpa; the air pressure output value of the thick plate cutting station is 5.1-6.7 Mpa. In practical work, the air pressure output value is found to have the best cutting precision when the plate with the corresponding thickness is cut.
Further, in the air pressure control device for fiber laser cutting, the proportional valve is a two-position three-way electromagnetic valve. The two-position three-way valve is used as a proportional valve, so that the cost is well controlled, the effect can meet the requirement, and the method is suitable for industrial popularization.
According to the above technical scheme, the utility model discloses following beneficial effect has:
(1) the utility model discloses it is rational in infrastructure succinct, through setting up three gear and baroceptor's detection feedback, timely adjustment auxiliary gas's that can be convenient atmospheric pressure for laser cutting process atmospheric pressure parameter is perfect controllable, improves optic fibre laser cutting's precision and quality.
(2) The utility model discloses a set up temperature sensor, can be real-time survey the temperature under the cutting state, after the controller was given in the temperature transfer, algorithm design in the controller, the atmospheric pressure of regulation auxiliary gas that can be corresponding more meticulous prevents that the cutting space from being overheated or the subcooling.
Drawings
Fig. 1 is a schematic diagram of embodiment 1 of the present invention;
fig. 2 is a schematic diagram of embodiment 2 of the present invention;
fig. 3 is a schematic diagram of the electrical connection according to embodiment 3 of the present invention;
wherein: 1 air source, 2 air pipelines, 3 proportional valves, 4 controllers, 5 air injectors, 6 laser cutters, 7 wires, 41 display screens, 51 air nozzles, 52 air pressure sensors, 61 cutting nozzles and 62 temperature sensors.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
The air pressure control device for optical fiber laser cutting shown in fig. 1 is characterized by comprising an air source 1, an air pipeline 2, a proportional valve 3, a controller 4, an air ejector 5, an air nozzle 51, an air pressure sensor 52 and a lead 7; the gas source 1 is connected with a gas inlet of the proportional valve 3 through a gas pipeline 2; the gas outlet of the proportional valve 3 is connected with the gas ejector 5 through a gas pipeline 2, and the gas ejector 5 is installed on the side of the laser cutter 6; a cutting nozzle 61 is arranged below the laser cutter 6; the gas nozzle 51 below the gas injector 5 is aligned with the cutting tip 61 of the laser cutter 6; an air pressure sensor 52 is arranged in the gas nozzle 51; the gas pressure sensor 52 is electrically connected with the gas injector 5, the controller 4 and the proportional valve 3 through a lead 7; the proportional valve 3 has three stations corresponding to thin plate cutting, middle plate cutting and thick plate cutting respectively.
When in work: when the cutting tip 61 of the laser cutter 6 cuts a thin plate, the middle plate and the thick plate are different (the thin plate is 0.5-2 mm; the thick plate is 4.5-25 mm; and the thick plate is more than 25 mm), the controller 4 controls the proportional valve 3 to be located at different gears, auxiliary gas with different pressures is output through the gas nozzle 51 of the gas ejector 5, meanwhile, the gas pressure sensor 52 carries out actual gas pressure detection, when the pressure is found to be lower than a set value, the gas pressure sensor 52 feeds back a signal to the controller, the controller 4 adjusts the proportional valve 3, the output value of the pressure is increased, and finally the output gas pressure meets the working requirement.
Example 2
The air pressure control device for optical fiber laser cutting shown in fig. 2 is characterized by comprising an air source 1, an air pipeline 2, a proportional valve 3, a controller 4, an air ejector 5, an air nozzle 51, an air pressure sensor 52 and a lead 7; the gas source 1 is connected with a gas inlet of the proportional valve 3 through a gas pipeline 2; the gas outlet of the proportional valve 3 is connected with the gas ejector 5 through a gas pipeline 2, and the gas ejector 5 is installed on the side of the laser cutter 6; a cutting nozzle 61 is arranged below the laser cutter 6; the gas nozzle 51 below the gas injector 5 is aligned with the cutting tip 61 of the laser cutter 6; an air pressure sensor 52 is arranged in the gas nozzle 51; the gas pressure sensor 52 is electrically connected with the gas injector 5, the controller 4 and the proportional valve 3 through a lead 7; the proportional valve 3 is provided with three stations which respectively correspond to thin plate cutting, medium plate cutting and thick plate cutting; in particular, a temperature sensor 62 is mounted on one side of the cutting nozzle 61, and the temperature sensor 62 is electrically connected with the controller 4 through a wire 7; further, the controller 4 is provided with a display screen 41 and is provided with a touch function; further, the power of the laser cutter 6 is 1000-3000W; particularly, the air pressure output value of the thin plate cutting station is 2.1-3.2 Mpa; the air pressure output value of the middle plate cutting station is 3.5-4.2 Mpa; the air pressure output value of the thick plate cutting station is 5.1-6.7 Mpa, and further, the proportional valve 3 is a two-position three-way electromagnetic valve.
When in work: when the cutting nozzle 61 of the laser cutter 6 cuts a thin plate, the middle plate and the thick plate are different (the thin plate is 0.5-2 mm; the thick plate is 4.5-25 mm; the thick plate is more than 25 mm), the controller 4 controls the proportional valve 3 to be positioned at different gears, auxiliary gas with different pressures is output through the gas nozzle 51 of the gas ejector 5, meanwhile, the gas pressure sensor 52 carries out actual gas pressure detection, when the pressure is found to be lower than a set value, the gas pressure sensor 52 feeds back a signal to the controller 4, the controller 4 adjusts the proportional valve 3, the output value of the pressure is increased, and finally the output gas pressure meets the working requirement; meanwhile, all the information of the pressure and the temperature can be displayed on the display screen 41 in real time, and the worker can also manually set the air pressure of the auxiliary gas sprayed from the gas nozzle 51 through the touch function of the display screen 41.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention can not be limited thereby, and the simple equivalent changes and modifications made according to the claims and the utility model also belong to the protection scope of the present invention.
Claims (7)
1. The air pressure control device for optical fiber laser cutting is characterized by comprising an air source (1), an air pipeline (2), a proportional valve (3), a controller (4), an air ejector (5), an air nozzle (51), an air pressure sensor (52) and a lead (7); the gas source (1) is connected with a gas inlet of the proportional valve (3) through a gas pipeline (2); the gas outlet of the proportional valve (3) is connected with the gas ejector (5) through a gas pipeline (2), and the gas ejector (5) is installed on the side of the laser cutter (6); a cutting nozzle (61) is arranged below the laser cutter (6); a gas nozzle (51) below the gas injector (5) is aligned with a cutting tip (61) of the laser cutter (6); an air pressure sensor (52) is arranged in the gas nozzle (51); the air pressure sensor (52) is electrically connected with the gas ejector (5), the controller (4) and the proportional valve (3) through a lead (7); the proportional valve (3) is provided with three stations which respectively correspond to thin plate cutting, medium plate cutting and thick plate cutting.
2. The air pressure control device for optical fiber laser cutting according to claim 1, wherein a temperature sensor (62) is installed on one side of the cutting nozzle (61), and the temperature sensor (62) is electrically connected with the controller (4) through a lead (7).
3. A pneumatic control device for fiber laser cleaving according to claim 1, wherein the controller (4) has a display screen (41).
4. An air pressure control device for fiber laser cutting according to claim 3, wherein the display screen (41) is a touch display screen.
5. The pneumatic control device for laser cutting of optical fiber according to claim 1, wherein the power of the laser cutter (6) is 1000-3000W.
6. The air pressure control device for optical fiber laser cutting according to claim 5, wherein the air pressure output value of the thin plate cutting station is 2.1-3.2 Mpa; the air pressure output value of the middle plate cutting station is 3.5-4.2 Mpa; the air pressure output value of the thick plate cutting station is 5.1-6.7 Mpa.
7. The pneumatic control device for fiber laser cutting according to claim 1, wherein the proportional valve (3) is a two-position three-way solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921615340.XU CN210848836U (en) | 2019-09-26 | 2019-09-26 | Air pressure control device for optical fiber laser cutting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921615340.XU CN210848836U (en) | 2019-09-26 | 2019-09-26 | Air pressure control device for optical fiber laser cutting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210848836U true CN210848836U (en) | 2020-06-26 |
Family
ID=71303196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921615340.XU Expired - Fee Related CN210848836U (en) | 2019-09-26 | 2019-09-26 | Air pressure control device for optical fiber laser cutting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210848836U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114346461A (en) * | 2021-12-09 | 2022-04-15 | 济南邦德激光股份有限公司 | Intelligent air pressure control device and method for laser cutting |
-
2019
- 2019-09-26 CN CN201921615340.XU patent/CN210848836U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114346461A (en) * | 2021-12-09 | 2022-04-15 | 济南邦德激光股份有限公司 | Intelligent air pressure control device and method for laser cutting |
| CN114346461B (en) * | 2021-12-09 | 2024-05-03 | 济南邦德激光股份有限公司 | Intelligent air pressure control device and method for laser cutting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105458530B (en) | A kind of device and method of femtosecond laser processing blade of aviation engine air film hole | |
| CN103495807B (en) | Multirobot optical-fiber laser diced system | |
| CN212286359U (en) | Gas-fluid-constrained water jet generator | |
| CN205309586U (en) | Device in femto second laser processing aeroengine blade air film hole | |
| CN113751900B (en) | Water-guided laser drilling system and method | |
| CN106670656A (en) | Automatic focusing cutting head for optical fiber laser cutting machine and control method | |
| CN210848836U (en) | Air pressure control device for optical fiber laser cutting | |
| CN203418238U (en) | Integrated pipe sheet laser cutting machine | |
| CN104475971A (en) | Beam splitting laser multi-station time sharing cutting machine and machining method | |
| US20240100630A1 (en) | Laser cutting head with variable spot trajectory shape and cutting process thereof | |
| CN103495803A (en) | Laser welding method capable of achieving oval welding spots | |
| CN105290588A (en) | Plasma cutting height adjuster and working method thereof | |
| CN105562929A (en) | Brush type seal robot welding system based on ultrasonic detection technology | |
| CN107999959A (en) | A kind of hand-held laser welding apparatus and its welding method | |
| CN202846028U (en) | Industrial robot three-dimensional laser cutting machine | |
| CN214867987U (en) | Laser cutting machine's absorption tool and laser cutting machine | |
| CN113608301A (en) | Method for solving fusion splicing of submarine cable optical fibers | |
| CN203956327U (en) | The laser aid of a kind of changeable welding, cutting function | |
| CN201950376U (en) | Numerical-control optical-fiber laser plasma cutting machine | |
| CN214361700U (en) | Broadband high-speed laser cladding system | |
| CN212398499U (en) | Laser welding equipment for stainless steel pipe | |
| CN107502921A (en) | A kind of aluminum electrolytic tank laser crust breaker | |
| CN206047363U (en) | A kind of laser cutting head of energy automatic focusing | |
| CN208743934U (en) | Laser cutting machine with protective device | |
| CN114089524A (en) | ZOOM ZOOM optical system with three-piece type spherical mirror capable of continuously changing magnification and zooming |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200626 Termination date: 20210926 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |