CN111330915A - Automatic cleaning device for laser field lens based on coanda effect - Google Patents
Automatic cleaning device for laser field lens based on coanda effect Download PDFInfo
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- CN111330915A CN111330915A CN201811548517.9A CN201811548517A CN111330915A CN 111330915 A CN111330915 A CN 111330915A CN 201811548517 A CN201811548517 A CN 201811548517A CN 111330915 A CN111330915 A CN 111330915A
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- annular base
- annular
- top surface
- gland
- air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Lens Barrels (AREA)
Abstract
The application discloses a laser field lens automatic cleaning device based on a coanda effect, which comprises an annular base and an annular gland; the top surface of the annular base is provided with a groove, the annular gland is fixed on the top surface of the annular base and covers the groove to form a high-pressure chamber, a gap is formed between the bottom surface of the annular gland and the top surface of the annular base, the gap is an air outlet of the high-pressure chamber, and the air outlet is communicated with an air flow cavity formed by enclosing the annular base; the annular base is provided with an air inlet which is communicated with the high-pressure cavity; the joint of the inner side surface of the annular base and the top surface of the annular base is an outward convex cambered surface. The application provides an automatic cleaning device can get rid of water, filth, dust etc. on surface (visual lens) fast, keeps high transmissivity.
Description
Technical Field
The application relates to a laser field lens automatic cleaning device based on a coanda effect, and belongs to the technical field of scene cleaning.
Background
It is well known that surface cleaning of parts or devices, whether in industrial applications or scientific research, is particularly common.
For example, in the case of workers who mark, remove rust, remove oil stains, remove paint and the like on metal or non-metal surfaces by using equipment such as an industrial laser marker and a laser cleaning and rust removing device, metal particles, dust, dirt and the like generated in the work are not completely absorbed by dust, and the metal particles, the dust, the dirt and the like can be attached to the surface of a field lens, so that the transmissivity of laser is reduced, and the normal processing of the laser is seriously disturbed, and therefore, the device capable of automatically cleaning and protecting in real time is provided, which is a technical problem to be solved urgently.
At present, a common method is to add a protective lens in front of a field lens to isolate dirt, dust and the like, the lens still suffers from pollution under a severe working environment, the laser processing effect is influenced, the lens generally needs to be detached, and the lens is cleaned by adopting special lens wiping paper and alcohol, so that the operation is complicated.
Lens wiping paper is adopted, the price is low, and if unclean dust particles are adhered to the surface of the lens wiping paper, the lens is easy to scratch; the lens cloth can remove dust and dirt and absorb liquid such as raindrops, oil stains and the like stuck on the lens, but the lens cloth is easy to shed some fibers, so that secondary pollution is easily caused; the blowing can blow off dust on the surface of the lens, but the blowing nozzle and the surface of the lens must form a certain angle and cannot touch the lens, poor skin blowing is easy to age, rubber particles can fall off from the inner wall and are sprayed out along with compressed air, and the damage to the lens is self-evident. The automatic maintenance is poor, automatic real-time cleaning cannot be achieved, cleaning is required to be performed manually at regular time or irregular time, and efficient production and use cannot be met.
Traditional blowing application products have a number of drawbacks, such as: the blown air flow is not uniform; the consumption of compressed air is very high; although the impact force is strong, the noise level is too high, and the health of field operators is seriously influenced; the blowing products using electric energy as power often need frequent maintenance, and have short service life and the like.
Disclosure of Invention
According to one aspect of the application, a laser field lens automatic cleaning device based on the coanda effect is provided, which overcomes the defects in the prior art, can quickly remove water, dirt, dust and the like on the surface (a visual lens) and keeps high transmissivity.
The application provides a laser field lens automatic cleaning device based on a coanda effect, which comprises an annular base and an annular gland;
the top surface of the annular base is provided with a groove, the annular gland is fixed on the top surface of the annular base and covers the groove to form a high-pressure chamber, a gap is formed between the bottom surface of the annular gland and the top surface of the annular base, the gap is an air outlet of the high-pressure chamber, and the air outlet is communicated with an air flow cavity formed by enclosing the annular base;
the annular base is provided with an air inlet which is communicated with the high-pressure cavity;
the joint of the inner side surface of the annular base and the top surface of the annular base is an outward convex cambered surface.
Optionally, the annular base includes two semi-annular base bodies that are matched with each other, and a groove that is communicated along the circumferential direction is disposed on a top surface of each semi-annular base body.
Optionally, the semicircular seat body is detachably fixed together through a fixing connector, the fixing connector is provided with a first screw hole, the bottom surface of the semicircular seat body is provided with a second screw hole, and the first screw hole is connected with the second screw hole through a screw.
Optionally, the number of the air inlets is multiple, and the multiple air inlets are located on the outer side surface of the annular base and distributed along the circumferential direction of the outer side surface of the annular base.
Optionally, the air inlet device further comprises a plurality of air inlet elbows, and one end of each air inlet elbow is inserted into the air inlet of the annular base.
Optionally, the number of the air inlets is multiple, and the multiple air inlets are located on the bottom surface of the annular base and distributed along the circumferential direction of the bottom surface of the annular base.
Optionally, the gap distance of the gaps is 0.025-6.350 mm.
Optionally, the inner side surface of the annular gland is an inclined surface, and the inclined surface is enclosed to form an inverted circular truncated cone shape.
Optionally, a support ring is fixed above the annular gland, a plurality of filter screens are mounted on the side surface of the support ring, and the plurality of filter screens are distributed along the circumferential direction of the support ring.
Optionally, a sealing gasket is arranged between the bottom surface of the annular gland and the outer part of the top surface of the annular base.
The beneficial effects that this application can produce include:
1) the automatic cleaning device for the laser field lens based on the coanda effect is simple in structure, stable in airflow and free of vibration due to the utilization of the coanda effect, and compressed air is saved; and no electric equipment and movable mechanical parts are provided, so that the device is maintenance-free and long in service life.
2) The laser field lens automatic cleaning device based on the coanda effect is low in noise and quiet (<75 decibels).
3) The application provides a laser field lens self-cleaning device based on coanda effect, compressed air consumption is low, environmental protection and energy saving, and can adjust wind-force and flow size.
4) The application provides a laser field lens self-cleaning device based on coanda effect has the air current equilibrium, and air compression ratio reaches 40: 1.
5) According to the automatic cleaning device for the laser field lens based on the coanda effect, the annular edge is provided with the small hole, so that the automatic cleaning device is easy to install; and the volume structure is small and exquisite, light in weight, and the material can select aluminium or stainless steel for use.
6) The application provides a laser field lens self-cleaning device based on coanda effect can get rid of water, filth, dust etc. of surface (visual camera lens) fast, keeps high transmissivity.
Drawings
FIG. 1 is an exploded view of an automatic cleaning device for a laser field lens based on the coanda effect provided in example 1;
FIG. 2 is a longitudinal sectional view of the automatic cleaning apparatus for a laser field lens based on the coanda effect according to example 1;
FIG. 3 is a partial enlargement of FIG. 2 at A;
FIG. 4 is a sectional view showing the layout of the automatic cleaning apparatus for a laser field lens based on the coanda effect according to embodiment 1;
FIG. 5 is a schematic view of an air inlet according to another embodiment of the present disclosure;
FIG. 6 is a schematic view of the working state of the automatic cleaning device for the laser field lens based on the coanda effect provided by the present application;
fig. 7 is an exploded view of the working state of the automatic cleaning device for the laser field lens based on the coanda effect provided by the present application.
List of parts and reference numerals:
100 an annular base; 101 a gas flow chamber;
102 grooves; 103 semi-ring base
1031 fixing and connecting piece; 104 air inlet
200 ring-shaped gland bush; 300 a high pressure chamber;
301 air outlet; 400 air inlet pipes;
500 supporting the ring; 501, filtering a screen;
600 sealing gasket; 700 field lens module;
800 a transfer ring; 900 galvanometer module.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The application provides a laser field lens automatic cleaning device based on Coanda Effect (Coanda Effect), which comprises an annular base 100, an annular gland 200; the top surface of the annular base 100 is provided with a groove 102, the annular gland 200 is fixed on the top surface of the annular base 100 and covers the groove 102 to form a high-pressure chamber 300, a gap is formed between the bottom surface of the annular gland 200 and the top surface of the annular base 100, the gap is an air outlet 301 of the high-pressure chamber 300, and the air outlet 301 is communicated with an air flow cavity 101 formed by enclosing the annular base 100; the annular base 100 is provided with an air inlet 104, and the air inlet 104 is communicated with the high-pressure chamber 300; the junction of the inner side surface of the annular base 100 and the top surface thereof is an outwardly convex curved surface.
Specifically, in one example, a middle portion of the bottom surface of the annular gland 200 and the groove 102 cover the high pressure chamber 300, and a gap between an inner portion of the bottom surface of the annular gland 200 and the top surface of the annular base 100 is the air outlet 301 of the high pressure chamber 300.
In the application, high-pressure airflow enters the high-pressure chamber from the air inlet, the high-pressure chamber has a buffering effect on the air entering the high-pressure chamber, and then the high-pressure airflow flows out from the gap at a high flow speed.
Optionally, the annular base 100 includes two semi-annular bodies 103, and each semi-annular body 103 has a groove 102 on its top surface.
Optionally, the semi-ring base 103 is detachably fixed together by a fixing connector 1031, the fixing connector 1031 is provided with a first screw hole, the bottom surface of the semi-ring base 103 is provided with a second screw hole, and the first screw hole and the second screw hole are connected by a screw.
Specifically, two semi-annular base bodies 103 enclose to form an airflow cavity 101. The two semi-annular bodies 103 are detachably connected together. For example, the two fixing connectors 1031 shown in fig. 1 can be connected, the fixing connectors 1031 have a sheet structure and a certain radian, a first screw hole is formed on the fixing connector 1031, a second screw hole matched with the first screw hole is also formed near the joint of the two semicircular seat bodies 103, and the first screw hole and the second screw hole are connected together by a screw.
The groove 102 is semi-annular, and the two grooves 102 are spliced together to form an unclosed annular shape, so as to divide the top surface of the annular base 100 into an inner top surface and an outer top surface, i.e. the inner top surface is the top surface located inside the annular groove, and the outer top surface is the top surface located outside the annular groove. There is a gap between the bottom surface and the inner top surface of the ring-shaped gland 200, that is, the air outlet 301 of the high-pressure chamber 300 is a ring-shaped nozzle, and a balanced air flow sheet is formed in the annular direction after the high-pressure air flow passes through the narrow and thin nozzle, and the air flow sheet has a strong impact force to form a stronger low-pressure area, thereby improving the cleaning effect of impurities such as dirt and water on the surface of the lens.
Optionally, the number of the air inlets 104 is multiple, and the multiple air inlets 104 are located on the outer side surface of the annular base 100 and distributed along the circumferential direction of the outer side surface of the annular base 100.
Specifically, the number of the air inlets is 2, or may be 4, or may be other suitable numbers. As shown in fig. 2, the plurality of air inlets 104 are uniformly distributed along the circumferential direction of the outer side surface of the annular base 100, so that the high-pressure air flow uniformly enters the high-pressure chamber 300.
Optionally, a plurality of intake elbows 400 are also included, one end of the intake elbows 400 being inserted within the intake opening 104 of the annular base 100.
Specifically, the inlet elbow 400 may be a 90 ° elbow, or may also be a 60 ° elbow, although other suitable curvatures are also possible. In the present application, by providing the air intake elbow 400, the high pressure air flow can conveniently enter the high pressure chamber, and the flow state of the high pressure air flow can also be regulated, thereby improving the impact force of the high pressure air flow.
Optionally, the number of the air inlets 104 is multiple, and the multiple air inlets 104 are located on the bottom surface of the annular base 100 and distributed along the circumferential direction of the bottom surface of the annular base 100.
Specifically, as shown in fig. 5, the air inlet 104 is located at the bottom surface of the annular base 100.
Optionally, the gap spacing is 0.025-6.350 mm.
Specifically, a gap is formed between the bottom surface of the annular gland 200 and the top surface of the annular base 100, namely the air outlet 301, and the distance between the bottom surface and the top surface is 0.025-6.350 mm.
When the distance between the bottom surface of the annular gland 200 and the top surface of the annular base 100 is 0.025-6.350 mm, the compression ratio of the high-pressure chamber 300 to the high-pressure airflow reaches 40: 1, where the air flow velocity loss is minimal and the pressure is maximal, thus creating an air flow sheet with strong impact force and minimal shear force.
Optionally, the inner side surface of the annular gland 200 is an inclined surface, and the inclined surface is enclosed to form an inverted circular truncated cone shape.
Specifically, as shown in fig. 3, the inner side surface of the ring-shaped gland 200 is a slope. The negative pressure region generated by the coanda motion of the high-pressure airflow drives the surrounding air to move together, and when the inner side surface of the annular gland 200 is a bevel surface, the air can generate better motion effect and increase the air quantity, so as to realize better cleaning effect on impurities on the lens surface.
Of course, in the present application, the annular gland 200 may be formed by splicing two half-ring structures, or may be a unitary structure.
Optionally, a support ring 500 is fixed above the annular gland 200, a plurality of filter screens 501 are mounted on the side surface of the support ring 500, and the plurality of filter screens 501 are distributed along the circumferential direction of the support ring 500.
Specifically, as shown in fig. 1, the support ring 500 is fixed above the annular gland 200, and a window for mounting the filter screen 501 is opened on a side surface of the fixing ring 500. The filter screen 501 can generate a filtering effect when air enters a cavity formed by the surrounding of the support ring 500 from the outside, thereby improving the cleaning efficiency.
Optionally, a gasket 600 is disposed between the bottom surface of the annular gland 200 and the outer portion of the top surface of the annular base 100.
Specifically, the gasket 600 is located between the bottom surface of the annular gland 200 and the outer top surface of the annular base 100, so that the high-pressure air flow is better ejected from the gap between the bottom surface and the inner top surface of the annular gland 200.
Example 1
Fig. 1 is an exploded view of an automatic cleaning device for a laser field lens based on a coanda effect provided in embodiment 1, fig. 2 is a longitudinal sectional view of the automatic cleaning device for a laser field lens based on a coanda effect provided in embodiment 1, fig. 3 is a partial enlargement at a point a in fig. 2, fig. 4 is a layout sectional view of the automatic cleaning device for a laser field lens based on a coanda effect provided in embodiment 1, and the following specifically describes this embodiment with reference to fig. 1 to 4.
As shown in fig. 1 to 4, the automatic cleaning device for a laser field lens based on the coanda effect provided in this embodiment includes an annular base 100, an annular gland 200, and a support ring 500.
Referring to fig. 1 to 4, the annular base 100 includes two semi-annular base bodies 103, the semi-annular base bodies 103 enclose to form an airflow cavity 101, and the two semi-annular base bodies 103 are detachably and fixedly connected by a fixing connector 1031. A semicircular groove 102 is formed in the top surface of the semicircular base 103, the groove 102 divides the top surface of the semicircular base 103 into an inner side top surface and an outer side top surface, 4 threaded holes are formed in the outer side top surface of the semicircular base 103 (two semicircular bases 103 have 8 threaded holes in total), an air inlet 104 is formed in the middle of the outer side surface of the semicircular base 103, and an air inlet elbow 400 is inserted into and fixed to the air inlet 104.
The annular gland 200 is provided with a threaded through hole matched with the threaded hole on the semi-annular seat body 103, the annular gland 200 is fixed on the annular base 100 through a screw, the annular gland 200 and the semi-annular groove 102 form a high-pressure chamber 300, a gap is formed between the bottom wall of the annular gland 200 and the inner side top surface of the annular base 100, the gap is an air outlet 301 of the high-pressure chamber 300, and a sealing gasket is arranged between the bottom wall of the annular gland 200 and the outer side top surface of the annular base 100. The annular gland 200 is further provided with threaded holes for fixing with the support ring 500, and as shown in fig. 1, the number of the threaded holes is 4.
The filter screen 501 is installed on the circumference of the support ring 500, and 4 through holes matched with the threaded holes on the annular gland 200 are opened on the support ring 500, and the support ring 500 is fixed on the annular gland 200 by screws.
In the using process, as shown in fig. 6 and 7, the annular base 100, the annular gland 200 and the support ring 500 are assembled together, the inner wall of the support ring 500 is threaded and can be connected with the field lens module 700 to be detected, and the field lens module 700 is connected with the galvanometer module 900 through the adapter ring 800.
Although the present application has been described with reference to a few embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the application as defined by the appended claims.
Claims (10)
1. A laser field lens automatic cleaning device based on the coanda effect is characterized by comprising an annular base and an annular gland;
the top surface of the annular base is provided with a groove, the annular gland is fixed on the top surface of the annular base and covers the groove to form a high-pressure chamber, a gap is formed between the bottom surface of the annular gland and the top surface of the annular base, the gap is an air outlet of the high-pressure chamber, and the air outlet is communicated with an air flow cavity formed by enclosing the annular base;
the annular base is provided with an air inlet which is communicated with the high-pressure cavity;
the joint of the inner side surface of the annular base and the top surface of the annular base is an outward convex cambered surface.
2. The apparatus according to claim 1, wherein the annular base comprises two semi-annular seats cooperating with each other, and a top surface of each of the semi-annular seats is provided with a groove communicating with each other along a circumferential direction.
3. The apparatus of claim 2, wherein the semi-annular base is detachably fixed together by a fixing connector, the fixing connector is provided with a first screw hole, the bottom surface of the semi-annular base is provided with a second screw hole, and the first screw hole and the second screw hole are connected by a screw.
4. The device of claim 2, wherein the air inlet is a plurality of air inlets, and the plurality of air inlets are located on the outer side surface of the annular base and distributed along the circumferential direction of the outer side surface of the annular base.
5. The apparatus of claim 4, further comprising a plurality of inlet elbows, one end of the inlet elbows being inserted into the inlet port of the annular base.
6. The device of claim 2, wherein the air inlet is a plurality of air inlets, and the plurality of air inlets are located on and distributed along a circumferential direction of the bottom surface of the annular base.
7. The device of claim 1, wherein the gaps are spaced 0.025-6.350 mm apart.
8. The device of claim 1, wherein the inner side surface of the annular gland is a beveled surface, the beveled surface enclosing a reverse truncated cone shape.
9. The device of claim 1, wherein a support ring is fixed above the annular gland, and a plurality of filter screens are arranged on the side surface of the support ring and distributed along the circumferential direction of the support ring.
10. The apparatus of claim 1, wherein a seal is disposed between a bottom surface of the annular gland and an outer portion of the top surface of the annular base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811548517.9A CN111330915A (en) | 2018-12-18 | 2018-12-18 | Automatic cleaning device for laser field lens based on coanda effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811548517.9A CN111330915A (en) | 2018-12-18 | 2018-12-18 | Automatic cleaning device for laser field lens based on coanda effect |
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| Publication Number | Publication Date |
|---|---|
| CN111330915A true CN111330915A (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811548517.9A Pending CN111330915A (en) | 2018-12-18 | 2018-12-18 | Automatic cleaning device for laser field lens based on coanda effect |
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| CN (1) | CN111330915A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112122779A (en) * | 2020-09-04 | 2020-12-25 | 大族激光科技产业集团股份有限公司 | Dust removal assembly and laser processing equipment |
| CN114951982A (en) * | 2022-05-20 | 2022-08-30 | 卡门哈斯激光科技（苏州）有限公司 | Field lens device with air curtain protective cover structure |
-
2018
- 2018-12-18 CN CN201811548517.9A patent/CN111330915A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112122779A (en) * | 2020-09-04 | 2020-12-25 | 大族激光科技产业集团股份有限公司 | Dust removal assembly and laser processing equipment |
| CN112122779B (en) * | 2020-09-04 | 2022-05-31 | 大族激光科技产业集团股份有限公司 | Dust removal assembly and laser processing equipment |
| CN114951982A (en) * | 2022-05-20 | 2022-08-30 | 卡门哈斯激光科技（苏州）有限公司 | Field lens device with air curtain protective cover structure |
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