CN108213750A - Laser cutting machine quick-replaceable compressed air source unit of the same race - Google Patents
Laser cutting machine quick-replaceable compressed air source unit of the same race Download PDFInfo
- Publication number
- CN108213750A CN108213750A CN201810201663.8A CN201810201663A CN108213750A CN 108213750 A CN108213750 A CN 108213750A CN 201810201663 A CN201810201663 A CN 201810201663A CN 108213750 A CN108213750 A CN 108213750A
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- China
- Prior art keywords
- gas circuit
- branch
- branch gas
- valve
- air source
- 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.)
- Pending
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- 238000003698 laser cutting Methods 0.000 title claims abstract description 23
- 230000001105 regulatory effect Effects 0.000 claims abstract description 19
- 230000005611 electricity Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 146
- 238000005520 cutting process Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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
-
- 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
- B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
Laser cutting machine quick-replaceable compressed air source unit of the same race,Including into main gas circuit,At least two-way is connected separately with into branch gas circuit into main gas circuit input port,Output port is connected separately at least two-way and goes out branch gas circuit,Input port into branch gas circuit connects air source,Go out branch gas circuit output port and connect with going out main gas circuit input port,Go out main gas circuit output port to connect with laser head,It is equipped with into main gas circuit into main electromagnetic valve of gas circuit and detects valve into main airline pressure,It is equipped with into branch gas circuit into branch gas circuit regulating valve and detects valve into branch airline pressure,Go out branch gas circuit to be equipped with out branch electromagnetic valve of gas circuit and go out branch air passage one-way valve,It is connect into branch gas circuit with into main electromagnetic valve of gas circuit,Into branch gas circuit regulating valve,Valve is detected into branch airline pressure,Into main electromagnetic valve of gas circuit,Valve is detected into main airline pressure,Go out branch electromagnetic valve of gas circuit and go out branch air passage one-way valve and connect respectively by conducting wire with control system,With reasonable design,Automatically switch air source,The advantages that air source switching need not stop work.
Description
Technical field:
The present invention relates to laser cutting machine technical fields, and in particular to laser cutting machine quick-replaceable compressed air source unit of the same race.
Background technology:
For sheet fabrication, relative to conventional mechanical devices cutting mode, laser cutting machine has precision high, and cutting is fast
The features such as speed is not limited to cutting pattern limitation, and Automatic Typesetting saves material, and notch is smooth, and processing cost is low.As laser should
Fast development, user propose higher requirement to the productivity effect of laser cutting machine.It is cut to sheet metal
When, laser cutting machine is required for auxiliary gas (such as the gases such as oxygen, nitrogen) to be cut.Although existing laser cutting machine is all
It is an a kind of gas of gas circuit control, either gas-filling or hydraulic pressure gas equipped with auxiliary gas apparatus, but all, in gas
When air pressure is unsatisfactory for split requirement switching air source, laser cutting machine must be stopped, and time cost improves, and reduce work effect
Rate.
Invention content:
The purpose of the present invention is exactly in order to make up for the deficiencies of the prior art, to provide laser cutting machine quick-replaceable gas of the same race
Source device, it has many advantages, such as that reasonable design, automatic switchover air source, air source switching need not stop work, solves and deposit in the prior art
The problem of.
The used to solve above-mentioned technical problem technical solution of the present invention is:
Laser cutting machine quick-replaceable compressed air source unit of the same race, it is described to distinguish into main gas circuit input port including into main gas circuit
At least two-way is connected with into branch gas circuit, output port is connected separately at least two-way and goes out branch gas circuit, each into the input of branch gas circuit
Port connects an air source, and all air sources are same type air source, it is all it is described go out branch gas circuit output port all with to go out main gas circuit defeated
Inbound port connect, go out main gas circuit output port and connect with laser head, it is described into main gas circuit equipped with into main electromagnetic valve of gas circuit and into
Main airline pressure detects valve, described to be equipped with into branch gas circuit into branch gas circuit regulating valve and detect valve into branch airline pressure, it is described go out
Branch gas circuit is equipped with out branch electromagnetic valve of gas circuit and goes out branch air passage one-way valve, it is described into branch gas circuit output port with into main gas circuit electromagnetism
Valve input port connects, it is described into branch gas circuit regulating valve, into branch airline pressure detection valve, into main electromagnetic valve of gas circuit, into main gas circuit
Pressure detecting valve goes out branch electromagnetic valve of gas circuit and goes out branch air passage one-way valve and connect respectively by conducting wire with control system.
Arbitrarily all the way it is described go out branch gas circuit be equipped with proportioning valve, the proportioning valve connect by conducting wire with control system.
Described to be connected separately with two-way into branch gas circuit into main gas circuit input port, two-way is into branch gas circuit respectively into branch gas circuit
A and into branch gas circuit B, output port are connected separately with two-way and go out branch gas circuit, and it is respectively branch gas circuit D and go out branch that two-way, which goes out branch gas circuit,
Gas circuit E connects, and air source A is connected into branch gas circuit A input ports, connects air source B into branch gas circuit B input ports, air source A is with air source B
Same type air source is equipped with into branch gas circuit A into branch gas circuit A regulating valves and into branch gas circuit A pressure detecting valves, into branch gas circuit B on set
Have into branch gas circuit B regulating valves and into branch gas circuit B pressure detecting valves, go out on branch gas circuit D to set out branch gas circuit D solenoid valves and go out branch gas circuit
D check valves go out on branch gas circuit E to set out branch gas circuit E solenoid valves, proportioning valve and go out branch gas circuit E check valves.
It is described into main electromagnetic valve of gas circuit be 3-position-3-way solenoid valve, the 3-position-3-way solenoid valve include solenoid valve body,
Electromagnet, two inlet ends and an outlet side there are two being set in solenoid valve body, two electromagnet are respectively electromagnet A and electricity
Magnet B, two inlet ends are respectively inlet end A and inlet end B, and outlet side is outlet side C.
The control system includes PLC controller and the display and control button that are connect with PLC controller.
The control system of the application can be the automatic control system of laser cutting machine.
The present invention using the above scheme, for existing laser cutting machine gas circuit, devises laser and cuts
Cutting mill quick-replaceable compressed air source unit of the same race, by designing two-way Lu Jinzhi gas circuits, to realize that switching meets air pressure split requirement
Gas circuit provides basis;By designing into main gas circuit, realize and two-way is selected into connecting air inlet all the way in branch gas circuit according to air pressure requirement;
Go out branch gas circuit by designing two-way, realize and stablize bleed pressure, first shunt, then the purpose collaborated, it is ensured that bleed pressure stabilization can
Lean on and prevent the purpose of gas backstreaming.
Description of the drawings:
Fig. 1 is the structure diagram of the present invention;
Fig. 2 is structure diagram of the present invention for two-way into branch gas circuit;
Fig. 3 is of the invention into main electromagnetic valve of gas circuit structure diagram;
In figure, 1, into main gas circuit, 101, into main electromagnetic valve of gas circuit, 1011, solenoid valve body, 1012, electromagnet A, 1013,
Electromagnet B, 1014, inlet end A, 1015, inlet end B, 1016, outlet side C, 102, into main gas circuit voltage detecting valve, 2, into branch
Gas circuit, 201, into branch gas circuit regulating valve, 202, into branch gas circuit voltage detecting valve, 3, go out branch gas circuit, 301, go out branch electromagnetic valve of gas circuit,
302nd, go out branch air passage one-way valve, 303, proportioning valve, 4, air source, 5, go out main gas circuit, 6, laser head, 7, into branch gas circuit A, 701, into branch
Gas circuit A regulating valves, 702, into branch gas circuit A voltage detecting valves, 8, into branch gas circuit B, 801, into branch gas circuit B regulating valves, 802, into branch
Gas circuit B pressure detecting valves, 9, go out branch gas circuit D, 901, go out branch gas circuit D solenoid valves, 902, go out branch gas circuit D check valves, 10, go out branch gas
Road E, 1001, go out branch gas circuit E solenoid valves, 1002, go out branch gas circuit E check valves.
Specific embodiment:
In order to clarify the technical characteristics of the invention, below by specific embodiment, and its attached drawing is combined, to this hair
It is bright to be described in detail.
As shown in Figure 1, laser cutting machine quick-replaceable compressed air source unit of the same race, including into main gas circuit 1, being inputted into main gas circuit 1
Port is connected separately at least two-way into branch gas circuit 2, and output port is connected separately at least two-way and goes out branch gas circuit 3, each into branch
The input port of gas circuit 2 connects an air source 4, and all air sources 4 are same type air source, it is all go out 3 output port of branch gas circuit all with
Go out main 5 input port of gas circuit connection, go out main 5 output port of gas circuit and connect with laser head 6, is equipped with into main gas circuit 1 into main gas circuit
Solenoid valve 101 and valve 102 is detected into main airline pressure, be equipped with into branch gas circuit 2 into branch gas circuit regulating valve 201 and into branch gas circuit pressure
Power detects valve 202, goes out branch gas circuit 3 and is equipped with out branch electromagnetic valve of gas circuit 301 and goes out branch air passage one-way valve 302, is exported into branch gas circuit 2
Port is connect with into main 101 input port of electromagnetic valve of gas circuit, into branch gas circuit regulating valve 201, into branch airline pressure detection valve 202,
Valve 102 is detected into main electromagnetic valve of gas circuit 101, into main airline pressure, goes out branch electromagnetic valve of gas circuit 301 and goes out branch air passage one-way valve 302
It is connect respectively by conducting wire with control system.By designing two-way Lu Jinzhi gas circuits 2, to realize that switching meets air pressure split requirement
Gas circuit provide basis;By designing into main gas circuit 1, realize and two-way is selected into connecting all the way in branch gas circuit 2 according to air pressure requirement
Air inlet;Go out branch gas circuit 3 by designing two-way, realize and stablize bleed pressure, first shunt, then the purpose collaborated, it is ensured that bleed pressure
Purpose that is reliable and stable and preventing gas backstreaming.
Arbitrary to go out branch gas circuit 3 all the way equipped with proportioning valve 303, proportioning valve 303 is connect with control system by conducting wire, is convenient for
It is required that gas flow is adjusted according to air pressure.
As shown in Fig. 2, being connected separately with two-way into branch gas circuit 2 into main 2 input port of gas circuit, two-way is distinguished into branch gas circuit 2
For into branch gas circuit A7 and into branch gas circuit B8, output port is connected separately with two-way and goes out branch gas circuit 3, and two-way goes out branch gas circuit 3 and is respectively
Go out branch gas circuit D9 and go out branch gas circuit E10 to connect, connect air source A 11 into branch gas circuit A7 input ports, connect into branch gas circuit B8 input ports
Meet air source B12, air source A 11 and air source B12 is same type air source, be equipped with into branch gas circuit A7 into branch gas circuit A regulating valves 701 and into
Branch gas circuit A pressure detectings valve 702 is equipped with into branch gas circuit B8 into branch gas circuit B regulating valves 801 and into branch gas circuit B pressure detecting valves
802, go out on branch gas circuit D9 to set out branch gas circuit D solenoid valves 901 and go out branch gas circuit D check valves 902, go out on branch gas circuit E10 and set out branch
Gas circuit E solenoid valves 1001, proportioning valve 303 and go out branch gas circuit E check valves 1002.Go out branch into branch gas circuit and two-way by designing two-way
Gas circuit in the case where that can ensure to meet air source switching, reduces cost, and cost of implementation is optimized with function.
As shown in figure 3, it is 3-position-3-way solenoid valve into main electromagnetic valve of gas circuit 101,3-position-3-way solenoid valve includes solenoid valve
Ontology 1011, sets that there are two electromagnet, two inlet ends and an outlet side, two electromagnet difference in solenoid valve body 1011
For electromagnet A1012 and electromagnet B1013, two inlet ends are respectively inlet end A1014 and inlet end B1015, and outlet side is
Outlet side C1016.Match with two-way into branch gas circuit, convenient for being required according to air pressure, automatically select the air source connected and met the requirements
Road.
Control system includes PLC controller and the display and control button that are connect with PLC controller.
The control system of the application can be the automatic control system of laser cutting machine.
The course of work of the present invention is illustrated so that two-way goes out branch gas circuit into branch gas circuit and two-way as an example:
It is adjusted manually respectively first into branch gas circuit A regulating valves (701) and the pressure value into branch gas circuit B regulating valves (801), point
It does not adjust into branch gas circuit A pressure detectings valve (702), detect valve into branch gas circuit B pressure detectings valve (802) and into main airline pressure
(102) then alarm pneumatic value is powered to laser cutting machine, carry out the electricity of diced system acquiescence 3-position-3-way solenoid valve for the first time
Magnet A (1012) must be electric, that is, selects air source A (11) air inlet, carry out cutting work.The present apparatus be broadly divided into three kinds of working conditions into
Row is adjusted:
Situation one:Valve (102) is detected into main airline pressure send out letter when the air pressure of air source A (11) is unsatisfactory for split requirement
Number, electromagnet A (1012) dead electricity of 3-position-3-way solenoid valve, the electromagnet B (1013) of 3-position-3-way solenoid valve must be electric, automatically more
It is changed to and is cut using air source B (12), sending out signal prompt into branch gas circuit A pressure detectings valve (702) at this time replaces air source A
(11).After the completion of air source A (11) replacement, replace air source A (11) and prompt to cancel.After replacing air source A (11), equipment still uses
Air source B (12) is cutting air source.This process device continuous firing.
Situation two:Valve (102) is detected into main airline pressure send out letter when the air pressure of air source B (12) is unsatisfactory for split requirement
Number, electromagnet B (1013) dead electricity of 3-position-3-way solenoid valve, the electromagnet A (1012) of 3-position-3-way solenoid valve must be electric, automatically more
It is changed to and is cut using air source A (11), sending out signal prompt into branch gas circuit B pressure detectings valve (802) at this time replaces air source B
(12).After the completion of air source B (12) replacements, replace air source B (12) and prompt to cancel.After replacing air source B (12), equipment still uses
Air source A (11) is cutting air source.This process device continuous firing until the air pressure of air source A (11) is unsatisfactory for split requirement, recycles
The first step.
Situation three:When air source A (11) and air source B (12) air pressure are all unsatisfactory for split requirement, device prompts replace air source A
(11) and replace air source B (12), and send out warning device pause, at this time the electromagnet A (1012) of 3-position-3-way solenoid valve with
Solenoid valve B (1013) while dead electricity, inlet end A (1014), inlet end B (1015) and the outlet side C of 3-position-3-way solenoid valve
(1016) it is all obstructed each other.Until wherein having, when bleed pressure meets all the way, alarm is eliminated, and pointing device starts button, device
It automatically selects and meets the air source of split requirement and cut.The device of the application in two times automatic cycles of situation one and situation, in
Way equipment does not need to stop that the air source met the requirements can be automatically switched, and improves productivity effect.The air source of the same race of the application is quick
Apparatus for automatic change solves existing laser cutting machine and is asked because replacing long, equipment dwell time length of time used time existing for air source etc.
Topic, reduces client's time cost, improves productivity effect.
Above-mentioned specific embodiment cannot function as limiting the scope of the invention, for the technology people of the art
For member, any alternate modification or transformation made to embodiment of the present invention are all fallen in protection scope of the present invention.
Part is not described in detail by the present invention, is the known technology of those skilled in the art of the present technique.
Claims (5)
1. laser cutting machine quick-replaceable compressed air source unit of the same race, it is characterised in that:It is described to be inputted into main gas circuit including into main gas circuit
Port is connected separately at least two-way into branch gas circuit, and output port is connected separately at least two-way and goes out branch gas circuit, each into branch gas
The input port on road connects an air source, and all air sources are same type air source, it is all it is described go out branch gas circuit output port all with going out
Main gas circuit input port connection, goes out main gas circuit output port and is connect with laser head, described to be equipped with into main gas circuit into main gas circuit electricity
Magnet valve and into main airline pressure detect valve, it is described into branch gas circuit be equipped with into branch gas circuit regulating valve and into branch airline pressure detect
Valve, it is described go out branch gas circuit be equipped with out branch electromagnetic valve of gas circuit and go out branch air passage one-way valve, it is described into branch gas circuit output port with into
The connection of main electromagnetic valve of gas circuit input port, it is described into branch gas circuit regulating valve, into branch airline pressure detection valve, into main gas circuit electromagnetism
Valve detects valve into main airline pressure, goes out branch electromagnetic valve of gas circuit and goes out branch air passage one-way valve respectively by conducting wire and control system company
It connects.
2. laser cutting machine quick-replaceable compressed air source unit of the same race according to claim 1, it is characterised in that:Arbitrary institute all the way
Branch gas circuit is stated out equipped with proportioning valve, the proportioning valve is connect by conducting wire with control system.
3. laser cutting machine quick-replaceable compressed air source unit of the same race according to claim 1, it is characterised in that:It is described into main gas
Road input port is connected separately with two-way into branch gas circuit, and two-way is respectively into branch gas circuit A and into branch gas circuit B into branch gas circuit, is exported
Port is connected separately with two-way and goes out branch gas circuit, and it is respectively branch gas circuit D and go out branch gas circuit E to connect that two-way, which goes out branch gas circuit, into branch gas circuit A
Input port connects air source A, connects air source B into branch gas circuit B input ports, air source A is same type air source with air source B, into branch gas
Road A is equipped with into branch gas circuit A regulating valves and into branch gas circuit A pressure detecting valves, is equipped with into branch gas circuit B into branch gas circuit B regulating valves
With into branch gas circuit B pressure detecting valves, go out on branch gas circuit D to set out branch gas circuit D solenoid valves and go out branch gas circuit D check valves, go out branch gas circuit E
On set out branch gas circuit E solenoid valves, proportioning valve and go out branch gas circuit E check valves.
4. laser cutting machine quick-replaceable compressed air source unit of the same race according to claim 3, it is characterised in that:It is described into main gas
Way solenoid valve is 3-position-3-way solenoid valve, and the 3-position-3-way solenoid valve includes solenoid valve body, and solenoid valve body is equipped with two
A electromagnet, two inlet ends and an outlet side, two electromagnet are respectively electromagnet A and electromagnet B, and two inlet ends divide
Not Wei inlet end A and inlet end B, outlet side be outlet side C.
5. laser cutting machine quick-replaceable compressed air source unit of the same race according to claim 1, it is characterised in that:The control system
The display and control button that system includes PLC controller and connect with PLC controller.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810201663.8A CN108213750A (en) | 2018-03-12 | 2018-03-12 | Laser cutting machine quick-replaceable compressed air source unit of the same race |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810201663.8A CN108213750A (en) | 2018-03-12 | 2018-03-12 | Laser cutting machine quick-replaceable compressed air source unit of the same race |
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Publication Number | Publication Date |
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CN108213750A true CN108213750A (en) | 2018-06-29 |
Family
ID=62658401
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CN201810201663.8A Pending CN108213750A (en) | 2018-03-12 | 2018-03-12 | Laser cutting machine quick-replaceable compressed air source unit of the same race |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110142505A (en) * | 2019-06-20 | 2019-08-20 | 济南邦德激光股份有限公司 | It is cut by laser route controller and system |
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CN103170740A (en) * | 2012-12-22 | 2013-06-26 | 武汉金运激光股份有限公司 | Laser machining gas path device with switchable gas paths and use method thereof |
CN103205810A (en) * | 2012-01-16 | 2013-07-17 | 至砾机电设备(上海)有限公司 | Argon isolation system for sapphire crystal growth furnace |
CN103350282A (en) * | 2012-12-22 | 2013-10-16 | 武汉金运激光股份有限公司 | Laser processing gas circuit device capable of selecting gas circuit, and using method of laser processing gas circuit device |
CN204999683U (en) * | 2015-09-12 | 2016-01-27 | 绍兴精功机电有限公司 | Printing and dyeing wastewater processing system air current supercharging device |
CN208178734U (en) * | 2018-03-12 | 2018-12-04 | 济南森峰科技有限公司 | Laser cutting machine quick-replaceable compressed air source unit of the same race |
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JPH04162977A (en) * | 1990-10-25 | 1992-06-08 | Nippei Toyama Corp | Gas supplying device to laser processing nozzle |
JPH11342489A (en) * | 1998-06-01 | 1999-12-14 | Amada Co Ltd | Method and device for rapidly changing assist gas pressure in laser processing machine |
CN201524879U (en) * | 2009-06-16 | 2010-07-14 | 武汉钢铁(集团)公司 | Automatic double source gas supply system |
CN201805137U (en) * | 2010-08-10 | 2011-04-20 | 武汉钢铁(集团)公司 | High power fast-flow axis CO2 laser continuous gas supply device |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110142505A (en) * | 2019-06-20 | 2019-08-20 | 济南邦德激光股份有限公司 | It is cut by laser route controller and system |
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Application publication date: 20180629 |