CN105689892B - Laser cutting head protecting gas blowing device - Google Patents
Laser cutting head protecting gas blowing device Download PDFInfo
- Publication number
- CN105689892B CN105689892B CN201610270994.8A CN201610270994A CN105689892B CN 105689892 B CN105689892 B CN 105689892B CN 201610270994 A CN201610270994 A CN 201610270994A CN 105689892 B CN105689892 B CN 105689892B
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- CN
- China
- Prior art keywords
- cavity
- air
- main body
- guide ring
- air inlet
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/12—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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a laser cutting head protecting gas blowing device which comprises a gas inlet main body, wherein a gas guide base, ceramic and a nozzle are sequentially mounted on the lower end surface of the gas inlet main body; a main body cavity is formed in the gas inlet main body; a first cavity and a gas inlet channel communicated with the first cavity are formed inside the gas inlet main body; the gas inlet channel extends to the upper end surface of the gas inlet main body so as to form a gas inlet; a gas guide ring is arranged between the gas guide base and the gas inlet main body; the gas guide part is partially fed into the main body cavity and is in clearance fit with the main body cavity; the gap between the inner wall of the main body cavity and the outer wall of the gas guide ring serves as a second cavity; the gas guide base is partially fed into the gas guide ring and is in clearance fit with the gas guide ring; the gap between the inner wall of the gas guide ring and the outer wall of the gas guide base serves as a third cavity; the first cavity is communicated with the second cavity; the second cavity is communicated with the third cavity; a first gas guide cavity which is communicated with the third cavity is formed in the gas guide base. By adopting the laser cutting head protecting gas blowing device, a gas flowing out from the nozzle of the laser cutting head protecting gas blowing device is uniform and stable, the joint cutting quality of a cut plate can be greatly improved, and the machining cost can be reduced.
Description
Technical field
It is to be related to a kind of ray laser cutting head to blow protection gas more specifically the present invention relates to laser cutting technique field
Device.
Background technology
Recent year increases sharply to the demand of laser cutting machine tool, and optical-fiber laser cutting off machine is easy to dimension due to possessing
Shield, consuming cost is low, so the growth of demand seems especially prominent many advantages, such as cutting section is excellent.Laser cutting head conduct
The important composition part of laser cutting machine tool, directly affects cut quality of the laser cutting machine tool to sheet material.And blowing protection gas is
An essential link, whether air-flow is uniform and stable to directly affect cutting section quality.Existing blowing protects gas mode big
Mostly it is inside and outside nested structure, as shown in figure 1, this mode can cause air-flow uneven, unstable, has a strong impact on workpiece quality.
The content of the invention
Protection device of air is blown it is an object of the invention to provide a kind of laser cutting head is planted, solves to be protected using existing air blowing
Shield mode is blown, cause air-flow it is uneven, it is unstable the problems such as.
To achieve the above object, the present invention provides following technical scheme：
A kind of laser cutting head blows protection device of air, including air inlet main body, installed successively on air inlet main body lower surface
Air guiding base, ceramics and nozzle, it is characterised in that：
The air inlet main body centre position is provided with main cavity, main cavity it is opening down；First is provided with air inlet main body empty
Chamber and the inlet channel of the first cavity connection, the first cavity extend to air inlet main body lower surface, form opening, and inlet channel prolongs
Air inlet main body upper surface is extended, air inlet is formed；
Guide ring is provided between air guiding base and air inlet main body；Guide ring is partially loaded in main cavity, and coaxial with main cavity
Gap coordinates, and the gap between main body cavity wall and guide ring outer wall is the second cavity；Air guiding base is partially loaded in guide ring, and
Coordinate with guide ring concentric gap, the gap between guide ring inwall and air guiding base outer wall is the 3rd cavity；
First cavity is connected with the second cavity, and the second cavity is connected with the 3rd cavity；
The air guiding base centre position is provided with the first air guide chamber, and the first air guide chamber connects with the 3rd cavity；From air inlet
After being integrated through the first cavity, the second cavity, the 3rd cavity after the air-flow elder generation of entrance, enter nozzle along the first air guide chamber, by spraying
Mouth sprays.
Preferably, the air inlet main body periphery is provided with closure, and sealing ring is provided between closure and air inlet main body.
Preferably, the part of guide ring insertion main cavity is provided with multiple apertures, and the aperture is divided equally and is distributed in
On the circumference of guide ring；First cavity is connected with the second cavity by aperture；Guide ring upper end is provided with for installing sealing ring
Projection, prevent gas from guide ring upper end reveal；
The part that guide ring is not loaded into main cavity is located at the end face of air inlet main body, the lower surface of the part and air inlet main body it
Between have gap, the first cavity is connected with the 3rd cavity by the gap.
Preferably, there are gap, the first air guide chamber and the 3rd between the top of the air guiding base and the top of main cavity
Cavity is connected by the gap；
The outer wall of the part of the air guiding base insertion guide ring sets smooth, and the outer wall of the part is in arc in axial direction
Shape；The inwall in the first air guide chamber be also provided with it is smooth, and the first air guide chamber inwall axis direction also be in arcuation；Be conducive to
Gas flows, and without enrichment point, inner chamber is kept clean.
Preferably, the air guiding base is screwed with air inlet main body；The ceramic periphery is provided with ceramic trim ring,
Ceramics are locked on air guiding base by ceramic trim ring；The nozzle is locked on ceramics by way of screwing.
Preferably, between the guide ring and the inwall of main cavity, between guide ring and air inlet main body lower surface
It is provided with sealing ring sealing.
Preferably, between the inwall of the guide ring and the outer wall of air guiding base, guide ring lower surface and air guiding base it
Between be equipped with sealing ring sealing.
Preferably, the inwall in the main cavity near top is provided with fillet, is conducive to expansion of the gas to surrounding
Dissipate.
The beneficial effect produced using the present invention：Blow and three cavitys are set on protection device of air, the gas being blown into is by three
The integration of individual cavity, uniform, stabilization, intensive air-flow are flowed out from nozzle, it is ensured that cutting end face quality, improve part
Qualification rate, reduces processing cost.
Brief description of the drawings
Fig. 1 blows protection gas schematic diagram for existing；
Fig. 2 is the sectional view that the present invention blows protection device of air；
Fig. 3 is guide ring schematic diagram of the present invention；
Fig. 4 is the sectional view of air guiding base of the present invention；
Fig. 5 is the dimensional structure diagram that the present invention blows protection device of air；
Fig. 6 is the close-up schematic view of air blowing protector sectional view of the present invention.
Wherein, 1：Air inlet main body, 2：Air guiding base, 3：Ceramics, 4：Nozzle, 5：Guide ring, 6：Ceramic trim ring, 7：Protective glass is filled
Put, 8：Closure, 11：First cavity, 12：Second cavity, 13：3rd cavity, 21：First air guide chamber 21,51：Aperture.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1 is that existing common laser head cutting head blows protection device of air, and it includes air inlet main body 1, air guiding base 2, ceramics 3
With, ceramic trim ring 6 and nozzle 4, in the insertion air inlet of air guiding base 2 main body 1, air inlet is set, directly by air guide in air inlet main body 1
Seat 2 connects the first air guide chamber 21 in air guiding base 2 with the gap of the inwall of air inlet main body 1, and then by the first air guide chamber 21 by gas
Stream flows to nozzle 4.The air-flow that this mode is blown is uneven, unstable.
Fig. 2 to Fig. 6 blows protection device of air for a kind of laser cutting head disclosed by the invention, including air inlet main body 1, in air inlet
Air guiding base 2, ceramics 3 and the nozzle 4 installed successively on the lower surface of main body 1.Air guiding base 2 is screwed with air inlet main body 1；And
Ceramic 3 peripheries are provided with ceramic trim ring 6, and ceramics 3 are locked on air guiding base 2 by ceramic trim ring 6；Nozzle 4 then passes through what is screwed
Mode is locked on ceramics 3.
The upper surface connection protection lens device 7 of air inlet main body 1, air inlet main body 1 is provided with main cavity, and the main cavity is located at
The centre position of air inlet main body 1, and main cavity is opening down.The first cavity 11 and inlet channel are provided with air inlet main body 1, the
One cavity 11 is toroidal cavity, is centered around the periphery of main cavity.First cavity 11 extends to the lower surface of air inlet main body 1, under
End face forms opening.Inlet channel is connected with the first cavity 11, and inlet channel extends to the upper surface of air inlet main body 1, is formed
Air inlet.The periphery of air inlet main body 1 is provided with closure 8, and inlet channel is sealed by closure 8, closure 8 and air inlet main body 1 it
Between be provided with sealing ring, secondary seal is carried out to inlet channel, prevent gas leakage.
Guide ring 5 is additionally provided between air inlet main body 1 and air guiding base 2.The guide ring 5 is partially loaded the main body of air inlet main body 1
In chamber, guide ring 5 and main cavity coordinate for gap, and guide ring 5 is co-axially mounted with main cavity, guide ring 5 and main body cavity wall
Between gap be the second cavity 12, the upper end of guide ring 5 is provided with the projection for installing sealing ring, prevents gas from guide ring
Discharge 5 upper ends.Guide ring 5 is not inserted into the lower surface of the part positioned at air inlet main body 1 of main cavity, the part and air inlet main body 1
Lower surface gap connects, and the gap has connected the first cavity 11 and the second cavity 12.The part of the insertion main cavity of guide ring 5 is provided with
15 apertures 51, this 15 apertures 51 are distributed on the circumference of guide ring 5.
Air guiding base 2 is partially loaded in the ring of guide ring 5, and air guiding base 2 and guide ring 5 are that gap coordinates, and air guiding base 2 with lead
Compression ring 5 is to be co-axially mounted.The outer wall of air guiding base 2 of the part sets smooth, and the outer wall of air guiding base 2 is in arcuation in axis direction, should
Gap between the partial outer wall of air guiding base 2 and the inwall of guide ring 5 is the 3rd cavity 13, more specifically, the 3rd cavity 13 is interior
Wall is in arcuation.3rd cavity 13 is connected with the second cavity 12 by the aperture 51 on guide ring 5.
Air guiding base 2 is provided with the first air guide chamber 21, and the first air guide chamber 21 is located at the centre position of air guiding base 2.First leads
The inwall of air cavity 21 be also provided with it is smooth, and the first air guide chamber 21 inwall axial direction also be in arcuation.The inside and outside wall of air guiding base 2 is equal
Set smooth, and have camber line, this is designed with beneficial to gas flowing, without enrichment point, inner chamber is kept clean.The top of air guiding base 2
There is gap and the top of main cavity between, the first air guide chamber 21 is connected with the 3rd cavity 13 by the gap.And leaned in main cavity
The inwall at nearly top is provided with fillet, the i.e. gas from the 3rd cavity 13 out and flows to air guiding base 2 by the fillet at this and push up
In gap between portion and main cavity top, the diffusion being provided with beneficial to gas to surrounding of the fillet.
Air guiding base 2 is not loaded into the lower surface that part in guide ring 5 is located at guide ring 5, the lower surface of air guiding base 2 be provided with for
The groove of ceramics 3 is installed, after ceramic 3 partial insertion groove, is locked by ceramic trim ring 6, ceramic trim ring 6 and air guiding base 2 it
Between connection be embedded connection.
Ceramic 3 centre positions are provided with the second air guide chamber, the inner wall smooth in the second air guide chamber, and are in arcuation in axis direction,
Second air guide chamber one end connects the first air guide chamber 21, other end connection nozzle 4.
More specifically, when gas is flowed into from air inlet, gas first passes around inlet channel and flows in the first cavity 11, gas
Stream is integrated for the first time in the first cavity 11；And then, air-flow enters second by the gap of the bottom of the first cavity 11 and guide ring 5
Cavity 12, air-flow is integrated for second in the second cavity 12；Again and, air-flow is uniform to flow into by the aperture 51 on guide ring 5
In 3rd cavity 13, air-flow third time in the 3rd cavity 13 is integrated, and is evenly distributed；Finally, air-flow is in the 3rd cavity 13
The smooth inwall in arcuation flows into the first air guide chamber to upstream by the gap between the top of air guiding base 2 and main cavity top
In 21, projected after the second air guide chamber and nozzle 4, produce equally distributed air-flow, it is final to realize the uniform function of blowing.
In order to ensure the air-tightness of air blowing, between guide ring 5 and the inwall of main cavity, guide ring 5 and the lower end of air inlet main body 1
Between face, between the inwall of guide ring 5 and the outer wall of air guiding base 2, it is equipped with sealing ring between the lower surface of guide ring 5 and air guiding base 2 and enters
Row sealing.
Blow protection device of air, simple structure in this preferred embodiment, and can be more prone to obtain optimal cutting
Section, improves the cut quality of laser cutting machine tool.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding can carry out various changes, modification, replacement to these embodiments without departing from the principles and spirit of the present invention
And modification, the scope of the present invention be defined by the appended.
Claims (8)
1. a kind of laser cutting head blows protection device of air, including air inlet main body（1）, in air inlet main body（1）Pacify successively on lower surface
The air guiding base of dress（2）, ceramics（3）And nozzle（4）, it is characterised in that：
The air inlet main body（1）Be provided with main cavity, main cavity it is opening down；Air inlet main body（1）Inside it is provided with the first cavity
（11）With the first cavity（11）The inlet channel of connection；First cavity（11）Extend to air inlet main body（1）Lower surface, formation is opened
Mouthful, inlet channel extends to air inlet main body（1）Upper surface, forms air inlet；
Air guiding base（2）With air inlet main body（1）Between be provided with guide ring（5）；Guide ring（5）Be partially loaded in main cavity, and with master
Coelomic space cooperation, main body cavity wall and guide ring（5）Gap between outer wall is the second cavity（12）；Air guiding base（2）Part
Load guide ring（5）It is interior, and and guide ring（5）Gap coordinates, guide ring（5）Inwall and air guiding base（2）Gap between outer wall
It is the 3rd cavity（13）；
First cavity（11）With the second cavity（12）Connection, the second cavity（12）With the 3rd cavity（13）Connection；
The air guiding base（2）It is provided with the first air guide chamber（21）, the first air guide chamber（21）With the 3rd cavity（13）Connection；From entering
Through the first cavity after the air-flow elder generation that gas port enters（11）, the second cavity（12）, the 3rd cavity（13）After integration, along the first air guide
Chamber（21）Into nozzle（4）, by nozzle（4）Spray.
2. device according to claim 1, it is characterised in that：The air inlet main body（1）Periphery is provided with closure（8）, it is close
Capping（8）With air inlet main body（1）Between be provided with sealing ring.
3. device according to claim 1, it is characterised in that：The guide ring（5）The part for inserting main cavity is provided with many
Individual aperture（51）, the aperture（51）Respectively it is distributed in guide ring（5）Circumference on；First cavity（11）With the second cavity（12）
By aperture（51）Connection；Guide ring（5）Upper end is provided with the projection for installing sealing ring, prevents gas from guide ring（5）
Reveal upper end；
Guide ring（5）The part for being not loaded into main cavity is located at air inlet main body（1）End face, the part and air inlet main body（1）Under
There are gap, the first cavity between end face（11）With the 3rd cavity（13）Connected by the gap.
4. device according to claim 1, it is characterised in that：The air guiding base（2）Top and main cavity top it
Between have gap, the first air guide chamber（21）With the 3rd cavity（13）Connected by the gap；
The air guiding base（2）Insertion guide ring（5）The outer wall of part set smooth, and the outer wall of the part is in axial direction
Arcuation；The first air guide chamber（21）Inwall be also provided with smooth, and the first air guide chamber（21）Inwall be also in axis direction
Arcuation；Be conducive to gas to flow, without enrichment point, inner chamber is kept clean.
5. device according to claim 1, it is characterised in that：The air guiding base（2）With air inlet main body（1）It is solid by screw
It is fixed；The ceramics（3）Periphery is provided with ceramic trim ring（6）, by ceramic trim ring（6）By ceramics（3）It is locked at air guiding base（2）On；
The nozzle（4）Ceramics are locked at by way of screwing（3）On.
6. device according to claim 1, it is characterised in that：The guide ring（5）And the inwall of main cavity between, air guide
Ring（5）With air inlet main body（1）Sealing ring sealing is equipped between lower surface.
7. device according to claim 1, it is characterised in that：The guide ring（5）Inwall and air guiding base（2）Outer wall
Between, guide ring（5）Lower surface and air guiding base（2）Between be equipped with sealing ring sealing.
8. device according to claim 1, it is characterised in that：Inwall in the main cavity near top is provided with circle
Angle, is conducive to diffusion of the gas to surrounding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610270994.8A CN105689892B (en) | 2016-04-27 | 2016-04-27 | Laser cutting head protecting gas blowing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610270994.8A CN105689892B (en) | 2016-04-27 | 2016-04-27 | Laser cutting head protecting gas blowing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105689892A CN105689892A (en) | 2016-06-22 |
| CN105689892B true CN105689892B (en) | 2017-05-24 |
Family
ID=56216606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610270994.8A Active CN105689892B (en) | 2016-04-27 | 2016-04-27 | Laser cutting head protecting gas blowing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105689892B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110039175B (en) * | 2019-05-29 | 2024-05-17 | 武汉奥森迪科智能科技股份有限公司 | Laser cutting head nozzle air guide device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD123788A1 (en) * | 1976-01-09 | 1977-01-19 | ||
| EP1623790B1 (en) * | 2004-08-06 | 2008-12-10 | Trumpf Werkzeugmaschinen GmbH + Co. KG | Laser machining head |
| CN202846026U (en) * | 2012-09-03 | 2013-04-03 | 湖北省电力公司孝感供电公司 | Laser cutting head |
| CN203236126U (en) * | 2013-03-19 | 2013-10-16 | 常州鹏鸣数控机械设备有限公司 | Dual-focal-length laser cutting head |
| CN104325223A (en) * | 2014-10-08 | 2015-02-04 | 大族激光科技产业集团股份有限公司 | Laser cutting head |
| CN205587837U (en) * | 2016-04-27 | 2016-09-21 | 深圳欧斯普瑞智能科技有限公司 | Laser cutting head blows protection gas device |
-
2016
- 2016-04-27 CN CN201610270994.8A patent/CN105689892B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD123788A1 (en) * | 1976-01-09 | 1977-01-19 | ||
| EP1623790B1 (en) * | 2004-08-06 | 2008-12-10 | Trumpf Werkzeugmaschinen GmbH + Co. KG | Laser machining head |
| CN202846026U (en) * | 2012-09-03 | 2013-04-03 | 湖北省电力公司孝感供电公司 | Laser cutting head |
| CN203236126U (en) * | 2013-03-19 | 2013-10-16 | 常州鹏鸣数控机械设备有限公司 | Dual-focal-length laser cutting head |
| CN104325223A (en) * | 2014-10-08 | 2015-02-04 | 大族激光科技产业集团股份有限公司 | Laser cutting head |
| CN205587837U (en) * | 2016-04-27 | 2016-09-21 | 深圳欧斯普瑞智能科技有限公司 | Laser cutting head blows protection gas device |
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| Publication number | Publication date |
|---|---|
| CN105689892A (en) | 2016-06-22 |
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