CN109834395A - A kind of cooling laser cutting system of water mist and its cutting method - Google Patents
A kind of cooling laser cutting system of water mist and its cutting method Download PDFInfo
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- CN109834395A CN109834395A CN201910278435.5A CN201910278435A CN109834395A CN 109834395 A CN109834395 A CN 109834395A CN 201910278435 A CN201910278435 A CN 201910278435A CN 109834395 A CN109834395 A CN 109834395A
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Abstract
The invention discloses a kind of cooling laser cutting systems of water mist, including cutting head, water pump and compressed pneumatic pump, cutting head includes nozzle and ceramic body, nozzle is connected by ceramic body and rack insulation, water mist channel is provided on ceramic body, water pump, air pump, water mist is provided with conveyance conduit between channel, nozzle axle center is provided with the light channel passed through for laser, cutting head is provided with several spray holes around light channel setting, when ceramic body is connected with nozzle, water mist channel is mutually communicated with several spray holes, in addition a kind of cutting method according to the cooling laser cutting system of above-mentioned water mist is also disclosed, the present invention, which can be evaporated rapidly by water mist when being sprayed at cutting plate surface, takes away heat, as the mobile sprinkling path of cutting head is mobile, its whole energy, and efficient specific aim cooling, guarantee that cutting is stablized, reach and cuts Cut edge is along whole neat smooth effect.
Description
Technical field
The present invention relates to laser cutting fields, and in particular to a kind of cooling laser cutting system of water mist and its cutting side
Method.
Background technique
High power laser light cutting has become the mainstay equipment of current sheet metal processing, high in machining efficiency, essence
The advantages that high is spent to favor by market.However when high-power cutting carbon steel, oxygen reacted with plate release a large amount of heat to
Keep plate hot, when processing more complex figure, as the part of processing increases, plate temperature is sharply increased, and changes laser
The melting temperature and plate that processing medium carbon steel needs cause the situation that cutting cannot be continual and steady to the absorptivity of laser.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to be cut in laser by building nozzle spraying system
It is spraying to plate during cutting to reach thermal balance to reduce plate temperature in real time, guarantee that cutting is stablized and continues.
To achieve the above object, the present invention provides a kind of cooling laser cutting system of water mist, including cutting head, water pump and pressure
Contracting air pump, the cutting head include nozzle and ceramic body, and nozzle is connected by ceramic body and rack insulation, set on the ceramic body
It is equipped with water mist channel, the water pump, air pump are provided with conveyance conduit between water mist channel, and the nozzle axle center is provided with for swashing
The light channel that light passes through, the cutting head is provided with several spray holes around light channel setting, in ceramic body and spray
When mouth connects, water mist channel is mutually communicated with several spray holes.
As a further improvement of the present invention, the conveyance conduit of the water pump and air pump is connected with regulating valve.
As a further improvement of the present invention, further include having steam hybrid switch, connect the water pump conveyance conduit and
The conveyance conduit for connecting the compressed pneumatic pump is connect with steam hybrid switch, which is connected with water mist delivery pipe,
The water mist delivery pipe is connect with water mist channel.
As a further improvement of the present invention, the steam hybrid switch is jettron.
As a further improvement of the present invention, nozzle bottom end axle center is extended with boss, and light channel runs through boss, institute
It states spray holes and is circumferentially distributed in nozzle bottom surface position around outside the boss.
As a further improvement of the present invention, the outer wall of the boss is tightened from the upward extreme direction in nozzle lower end, the spray
Mist hole is correspondingly arranged at the outside of boss lower end edge diameter maximum.
Based on the cutting method of the cooling laser cutting system equipment of above-mentioned water mist, cutting head is mounted on laser cutter,
For the cutting laser and cutting oxygen of laser cutter transmitting by the light channel of nozzle, laser cutter, which controls, cuts laser
The air pressure of power and cutting oxygen；
Step 1: cutting plate is placed on cutting bed, according to the power of cutting plate and material setting cutting laser
With the air pressure and rate of cutting of cutting oxygen；
Step 2: adjusting the water mist size of cutting head injection by setting compressed air air pressure and water flow；
Step 3: setting laser cutter drives the cutting route of cutting head, it is longitudinal and/or perpendicular in horizontal cross, level
Histogram is to movement and/or around vertical direction axis oscillating.
As a further improvement of the present invention, wherein in step 2 compressed air air pressure and water flow according to cutting plate
Thickness set, wherein compressed air air pressure (bar) size is to cut the 1/3-1/5 of the thickness (mm) of plate, wherein water
Stream flow (L/min) size is to cut the 1/5-1/15 of plate thickness (mm).
As a further improvement of the present invention, at runtime, whether cutting head is controlled by control steam hybrid switch
Water spray controls steam hybrid switch according to the surface temperature of cutting plate as foundation, in the surface temperature of cutting plate
When degree is more than setting value, steam hybrid switch is opened, and the range of choice of setting value is at 300-600 DEG C.
As a further improvement of the present invention, the surface temperature for cutting plate is detected by non-contact temperature sensor,
The non-contact temperature sensor is mounted on cutting head, is provided on the conveyance conduit of the air pump connection steam hybrid switch
Solenoid valve, the solenoid valve and non-contact temperature sensor couple.
The cooling laser cutting system of a kind of water mist provided by the invention, it is spraying by being arranged on the nozzle on cutting head
Hole, and water mist channel is provided on ceramic body connected to it, water mist channel connects water pump and air pump, forms water mist, water
Mist can evaporate rapidly when being sprayed at cutting plate surface takes away heat, whole as the mobile sprinkling path of cutting head is mobile
Energy-saving, and efficient specific aim cooling, guarantee that cutting is stablized, and achieve the effect that cutting edge is whole neat smooth, and
Spray holes setting on the outside of light channel, does not interfere cutting head to be cut by laser.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of cutting head of the present invention；
Fig. 3 is the cross-sectional view of eye cutting head of the invention；
Fig. 4 is the cutting effect figure of the cooling laser cutting system of water mist of the invention.
Detailed description of the invention: 1, cutting head；2, water pump；3, compressed pneumatic pump；4, nozzle；5, ceramic body；6, water mist channel；7, it conveys
Pipeline；8, light channel；9, spray holes；10, regulating valve；11, steam hybrid switch；12, water mist delivery pipe；13, boss；14,
Non-contact temperature sensor.
Specific embodiment
The present invention is described in further detail below in conjunction with attached drawing and embodiment and effect example, rather than limits this hair
It is bright.
As shown in Figure 1-3, a kind of cooling laser cutting system of water mist, including cutting head 1, water pump 2 and compressed pneumatic pump 3, institute
Stating cutting head 1 includes nozzle 4 and ceramic body 5, and nozzle 4 is connected by ceramic body 5 and rack insulation, is arranged on the ceramic body 5
There is a water mist channel 6, the water pump 2, air pump are provided with conveyance conduit 7 between water mist channel 6, and 4 axle center of nozzle is provided with confession
The light channel 8 that laser passes through, the light channel 8 pass through for cutting gas simultaneously, and the cutting head 1 is provided with logical around light
Several spray holes 9 that road 8 is arranged, when ceramic body 5 and nozzle 4 connect, water mist channel 6 is mutually passed through with several spray holes 9
Logical, as preferred embodiment therein, nozzle 4 and ceramic body 5 are threadedly coupled by jointing, and nozzle 4 is close to connection ceramic body 5
Side be provided with water receiving tank, several spray holes 9 are mutually communicated with water receiving tank, when nozzle 4 is connect with ceramic body 5, water mist
Channel 6 is mutually communicated with water receiving tank, and in the opposite light through-hole sealed set of water receiving groove location, preferential is connect for nozzle 4 and ceramic body 5
Sink is provided with sealing ring.
As a kind of improved specific embodiment, the conveyance conduit 7 of the water pump 2 and air pump is connected with regulating valve 10,
By the way that regulating valve 10 is arranged, to control compressed air air pressure and water flow, regulating valve 10 be can choose as solenoid valve control,
It can also annex manual modulation valve 10, to adapt to the cutting plate of different-thickness unlike material.
Further include having steam hybrid switch 11 as a kind of improved specific embodiment, connects the conveying of the water pump 2
The conveyance conduit 7 of pipeline 7 and the connection compressed pneumatic pump 3 is connect with steam hybrid switch 11, the steam hybrid switch 11 connection
Have water mist delivery pipe 12, which connect with water mist channel 6, cut the distilled water transported in water pump 2 and air pump and
Gas mixes in steam hybrid switch 11 before entering water mist channel 6, so that the water mist sprayed is more uniform, and can be with
Water mist open and close is controlled by control steam hybrid switch 11, more convenient control on the whole.
As a kind of improved specific embodiment, the steam hybrid switch 11 is jettron, it is preferred that passes through gas
Pump connects solenoid valve to control jettron, and equipment is more succinct on the whole.
As a kind of improved specific embodiment, the 4 bottom end axle center of nozzle is extended with boss 13, and light channel 8 passes through
Boss 13 is worn, the spray holes 9 are distributed in 4 basal surface position of nozzle around 13 external circumferential of boss, by the side that boss 13 is arranged
Formula is avoided being sprayed in course of injection and be sprayed to reduce water mist in course of injection to laser and to the influence of cutting gas
On to the jet path of laser and cutting gas.
As a kind of improved specific embodiment, the outer wall of the boss 13 is tightened from the upward extreme direction in 4 lower end of nozzle,
The spray holes 9 are correspondingly arranged at the outside of 13 lower end edge diameter maximum of boss, prevent water mist from accumulating water droplet in wall built-up
After flow to 13 lower end surface of boss, 13 outer wall of boss can guide water droplet to flow away from cutting position after water mist wall built-up collects.
Based on the cutting method of the cooling laser cutting system equipment of above-mentioned water mist, cutting head 1 is mounted on laser cutter,
The cutting laser and cutting oxygen of laser cutter transmitting pass through the light channel 8 of nozzle 4, laser cutter control cutting laser
Power and cutting oxygen air pressure；
Step 1: cutting plate is placed on cutting bed, according to the power of cutting plate and material setting cutting laser
With the air pressure and rate of cutting of cutting oxygen；
Step 2: adjusting the water mist size of the injection of cutting head 1 by setting compressed air air pressure and water flow；
Step 3: setting laser cutter drives the cutting route of cutting head 1, it is longitudinal and/or perpendicular in horizontal cross, level
Histogram is to movement and/or around vertical direction axis oscillating.
As a kind of improved specific embodiment, wherein in step 2 compressed air air pressure and water flow according to cutting
The thickness of plate is set, and wherein compressed air air pressure (bar) size is to cut the 1/3-1/5 of the thickness (mm) of plate,
Middle water flow (L/min) size is to cut the 1/5-1/15 of plate thickness (mm), wherein preferred wherein compressed air air pressure
(bar) size is the 1/4 of the thickness (mm) of cutting plate, and wherein water flow (L/min) size is cutting plate thickness (mm)
1/10, wherein by taking 20mm carbon steel as an example, set cutting laser power as 15000w, cutting gas selection oxygen, oxygen gas
Pressure is 1bar, and adjustment compressed air air pressure is 5bar, water flow 2L/min.
As a kind of improved specific embodiment, at runtime, cutting is controlled by control steam hybrid switch 11
First 1 whether water spray, according to cutting plate surface temperature as according to control steam hybrid switch 11, cutting plate
Surface temperature be more than setting value when, steam hybrid switch 11 open, the range of choice of setting value is at 300-600 DEG C.
As a kind of improved specific embodiment, the surface temperature for cutting plate passes through non-contact temperature sensor 14
Detection, non-contact temperature sensor 14 can use visible optical radiation temperature instrumentation or infrared radiation thermometer, and signal can be with
Using the non-contact temperature sensor 14 of ES1B signal, sensor is mounted on the side of cutting head 1, the inspection of temperature sensor
Gauge head is mutually aligned with cutting plate, which is mounted on cutting head 1, and the air pump connects steam
It is provided with solenoid valve on the conveyance conduit 7 of hybrid switch 11, the solenoid valve and non-contact temperature sensor 14 couple.
It is real that cutting is carried out to the water mist diced system of the invention announced and without the laser cutting system of water mist refrigerating function
Comparison is tested, wherein sample selection meets the 20mm carbon steel of GB-Q235B standard, in cutting laser power 15000w, oxygen pneumatic
It is cut under the conditions of 1bar, as shown in figure 4, being wherein the cutting effect for not carrying out atomized water spray in wire region, outside wire
To carry out the cooling cutting effect of atomized water spray, can significantly find out in cutting, by the plate of the cooling cutting of water mist its
Cut edge is neat, and cuts flat quality and be able to maintain uniformly.
The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
For those of ordinary skill, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of cooling laser cutting system of water mist, it is characterised in that: including cutting head (1), water pump (2) and compressed pneumatic pump (3),
The cutting head (1) includes nozzle (4) and ceramic body (5), and nozzle (4) is connected by ceramic body (5) and rack insulation, the pottery
It being provided on porcelain body (5) water mist channel (6), the water pump (2), air pump are provided with conveyance conduit (7) between water mist channel (6),
Nozzle (4) axle center is provided with the light channel (8) passed through for laser, and the cutting head (1) is provided with around light channel
(8) several spray holes (9) being arranged, when ceramic body (5) and nozzle (4) connect, water mist channel (6) and several spray holes
(9) it is mutually communicated.
2. the cooling laser cutting system of a kind of water mist according to claim 1, which is characterized in that the water pump (2) is gentle
The conveyance conduit (7) of pump is connected with regulating valve (10).
3. the cooling laser cutting system of a kind of water mist according to claim 1 or 2, which is characterized in that further include having steam
Hybrid switch (11), connect the water pump (2) conveyance conduit (7) and the connection compressed pneumatic pump (3) conveyance conduit (7) with
Steam hybrid switch (11) connection, the steam hybrid switch (11) are connected with water mist delivery pipe (12), the water mist delivery pipe (12)
It is connect with water mist channel (6).
4. the cooling laser cutting system of a kind of water mist according to claim 3, which is characterized in that the steam hybrid switch
It (11) is jettron.
5. the cooling laser cutting system of a kind of water mist according to claim 1, which is characterized in that nozzle (4) bottom end
Axle center is extended with boss (13), and light channel (8) runs through boss (13), and the spray holes (9) surround boss (13) external circumferential
It is distributed in nozzle (4) basal surface position.
6. the cooling laser cutting system of a kind of water mist according to claim 5, which is characterized in that outside the boss (13)
For wall from the upward extreme direction tightening in nozzle (4) lower end, it is maximum that the spray holes (9) are correspondingly arranged at boss (13) lower end edge diameter
The outside at place.
7. a kind of cutting method of the cooling laser cutting system of water mist, is based on described in claim 3-6 any one
The cutting method of the cooling laser cutting system equipment of water mist, which is characterized in that cutting head (1) is mounted on laser cutter, is swashed
The cutting laser and cutting oxygen of the transmitting of light cutter pass through the light channel (8) of nozzle (4), and laser cutter control cutting swashs
The air pressure of the power and cutting oxygen of light；
Step 1: cutting plate is placed on cutting bed, cut the power of laser according to cutting plate and material setting and is cut
Cut the air pressure and rate of cutting of oxygen；
Step 2: adjusting the water mist size of cutting head (1) injection by setting compressed air air pressure and water flow；
Step 3: setting laser cutter drives the cutting route of cutting head (1), it is longitudinal and/or vertical in horizontal cross, level
Direction is mobile and/or around vertical direction axis oscillating.
8. a kind of cutting method of the cooling laser cutting system of water mist according to claim 7, which is characterized in that wherein walk
Compressed air air pressure and water flow are set according to the thickness of cutting plate in rapid two, wherein compressed air air pressure (bar)
Size is to cut the 1/3-1/5 of the thickness (mm) of plate, and wherein water flow (L/min) size is cutting plate thickness (mm)
1/5-1/15。
9. a kind of cutting method of the cooling laser cutting system of water mist according to claim 7, which is characterized in that running
When, by control steam hybrid switch (11) come control cutting head (1) whether water spray, according to cutting plate surface temperature
As according to control steam hybrid switch (11), when the surface temperature for cutting plate is more than setting value, steam hybrid switch
(11) it opens, the range of choice of setting value is at 300-600 DEG C.
10. a kind of cutting method of the cooling laser cutting system of water mist according to claim 9, which is characterized in that cutting
The surface temperature of plate is detected by non-contact temperature sensor (14), which, which is mounted on, cuts
Cut on head (1), be provided with solenoid valve on the conveyance conduit (7) of air pump connection steam hybrid switch (11), the solenoid valve with
Non-contact temperature sensor (14) coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910278435.5A CN109834395A (en) | 2019-04-09 | 2019-04-09 | A kind of cooling laser cutting system of water mist and its cutting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910278435.5A CN109834395A (en) | 2019-04-09 | 2019-04-09 | A kind of cooling laser cutting system of water mist and its cutting method |
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| CN109834395A true CN109834395A (en) | 2019-06-04 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110449736A (en) * | 2019-09-12 | 2019-11-15 | 苏州市宏石激光技术有限公司 | The side-blown dust-proof laser nozzle of one kind and its control method |
| CN111014989A (en) * | 2019-12-13 | 2020-04-17 | 济南邦德激光股份有限公司 | Cooling system, laser cutting system and cooling method |
| CN111230343A (en) * | 2020-03-24 | 2020-06-05 | 株洲特装智能装备有限公司 | Cooling water spraying component for laser cutting, spraying device and laser cutting machine |
| CN112756810A (en) * | 2021-01-18 | 2021-05-07 | 奔腾激光(温州)有限公司 | Cutting head water-cooling forced air cooling hybrid cooling device |
| CN114700619A (en) * | 2022-05-12 | 2022-07-05 | 北京金橙子科技股份有限公司 | High-speed laser scanning galvanometer |
| CN115156739A (en) * | 2022-09-02 | 2022-10-11 | 扬州瑞德环保科技有限公司 | Laser cutting machine is used in equipment housing processing |
| CN116604711A (en) * | 2023-07-08 | 2023-08-18 | 山东奥博尔新型材料科技有限公司 | Cutting device and method for high-strength artificial quartz stone plate |
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| CN116604711A (en) * | 2023-07-08 | 2023-08-18 | 山东奥博尔新型材料科技有限公司 | Cutting device and method for high-strength artificial quartz stone plate |
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