Dust collecting device

Abstract

The utility model relates to the technical field of welding, in particular to a dust collecting device. The dust collection device comprises a mounting body and an anti-backflow piece, a laser channel and a dust collection channel which are intersected are formed in the mounting body, the dust collection channel is provided with an air outlet, and the anti-backflow piece is arranged in the dust collection channel and located between the air outlet and the laser channel. The anti-backflow piece can prevent pollutants in the dust collection channel from flowing in the direction from the air outlet to the laser channel, can prevent the pollutants from flowing back, prevents the pollutants from damaging the interior of the laser lens, prevents the laser lens and laser welding equipment from being damaged, guarantees normal proceeding of the laser welding process, and improves the welding quality. And the maintenance cost and the maintenance frequency of the laser lens are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a dust collection device. Background Art

[0002] Due to the advantages of high brightness, high directivity, high monochromaticity and high coherence, lasers have been widely used in important aspects of national production such as scientific research, national defense, and industry. In the industrial field, laser processing, as an advanced manufacturing technology, has the advantages of high efficiency, high precision, high quality, wide range, energy conservation and environmental protection, and can achieve flexible processing and ultra-fine processing. It has been widely used in fields such as automobiles, electronic circuits, electrical appliances, aerospace, iron and steel metallurgy, and machinery manufacturing, and plays an increasingly important role in improving product quality, labor productivity, automation, pollution-free, and reducing material consumption.

[0003] When laser welding is used, laser welding will also generate pollutants such as splashing of molten metal and flying of fog-like dust. These foreign substances seriously affect the atmosphere. If inhaled into the human body, it is very easy to cause respiratory diseases or other diseases. In addition, once these foreign substances enter the inside of the laser lens, they will damage the lens for laser transmission, resulting in damage to the laser welding equipment. After the damage, processing and application can no longer be carried out, and the cost of the lens for laser transmission is also high. Frequent damage and replacement are not practical.

[0004] To solve the above problems, a dust collection device is provided in the prior art. The dust collection device includes a mounting member and a dust collector. The mounting member is provided with an intersecting dust suction channel and a laser light passing hole. The dust suction channel has a dust collector connection port, and the dust collector connection port is connected to the dust collector. The dust collector can effectively absorb pollutants such as splashing of molten metal and flying of fog-like dust.

[0005] However, pollutants are likely to accumulate in the downstream of the dust suction channel, and the pollutants are likely to flow back, which is likely to damage the inside of the laser lens, damage the lens for laser transmission, resulting in damage to the laser welding equipment. After the laser welding equipment is damaged, processing and application can no longer be carried out, and the cost of the lens for laser transmission is also high. Frequent damage and replacement are not practical.

[0006] Therefore, it is urgent to design a new dust collection device to improve the above problems. Summary of the Utility Model

[0007] The purpose of the utility model is to provide a dust collection device, which can prevent the backflow of pollutants, avoid damage to the laser lens and the laser welding equipment, ensure the normal progress of the laser welding process, and reduce the maintenance cost and maintenance frequency of the laser lens.

[0008] To achieve this purpose, the utility model adopts the following technical solutions:

[0009] A dust collection device, the dust collection device comprising:

[0010] An installation main body, on which a laser channel and a dust collection channel that intersect with each other are provided, the dust collection channel having an air outlet; and

[0011] A backflow prevention member, disposed in the dust collection channel, the backflow prevention member being located between the air outlet and the laser channel, and the backflow prevention member being capable of preventing pollutants in the dust collection channel from flowing in the direction from the air outlet to the laser channel.

[0012] As an optional solution, the dust collection channel includes a top surface and a bottom surface, the backflow prevention member is disposed on the bottom surface and is spaced apart from the lower end of the top surface.

[0013] As an optional solution, the backflow prevention member includes a first drainage surface, a transition surface, and a second drainage surface that are arranged in sequence and connected in sequence in the direction from the laser channel to the air outlet. In the direction from the laser channel to the air outlet, the first drainage surface is inclined upward, and the second drainage surface is inclined downward.

[0014] As an optional solution, the transition surface is an arc surface protruding toward the top surface.

[0015] As an optional solution, the installation main body includes:

[0016] An air flow guiding member, on which the through dust collection channel is provided; and

[0017] A base body, disposed on the air flow guiding member, and the laser channel penetrates through the base body and the air flow guiding member in sequence.

[0018] As an optional solution, the dust collection channel has an air inlet, the dust collection device further includes an air flow speed increasing mechanism, the air flow speed increasing mechanism is disposed in the dust collection channel, and the air flow speed increasing mechanism can increase the speed of the air flow entering from the air inlet.

[0019] As an optional solution, the air flow speed increasing mechanism is an air knife, the air knife includes an air knife seat and a sealing cover plate that are connected, the air knife seat and the sealing cover plate jointly form a connected air knife high-pressure cavity and an air gap, the air knife high-pressure cavity is connected to the air inlet, and the air gap is disposed opposite to the laser channel.

[0020] As an optional solution, the air knife seat includes:

[0021] An air knife seat body, the air knife high-pressure cavity is disposed in the air knife seat body and has a lower open end; and

[0022] A partition plate, the partition plate extends backward from its front end to form a communication channel, the communication channel is communicated with the lower opening, the partition plate is clamped between the air knife seat body and the sealing cover plate, and the front ends of the air knife seat body and the sealing cover plate are spaced apart to form the air gap.

[0023] As an optional solution, the dust collection channel has an air inlet, and the dust collection device further includes:

[0024] An air flow driving mechanism, the air flow driving mechanism is directly or indirectly communicated with the air inlet, and the air flow driving mechanism can drive the air flow in the dust collection channel to flow towards the air outlet.

[0025] As an optional solution, the dust collection device further includes:

[0026] An air inlet plate, the air inlet plate is located on one side of the installation main body, and the air inlet plate and the installation main body together form a buffer cavity communicated with the dust collection channel; and

[0027] A connector, connected to the air inlet plate and communicated with the buffer cavity, and the air flow driving mechanism can be communicated with the connector.

[0028] Advantages of the present utility model:

[0029] The dust collection device provided by the present utility model includes an installation main body and an anti-backflow member. The installation main body is provided with an intersecting laser channel and a dust collection channel. The dust collection channel has an air outlet. The anti-backflow member is arranged in the dust collection channel. The anti-backflow member is located between the air outlet and the laser channel. The anti-backflow member can prevent pollutants in the dust collection channel from flowing in the direction from the air outlet to the laser channel, can prevent the backflow of pollutants, avoid the damage to the inside of the laser lens by pollutants, avoid the damage to the laser lens and the laser welding equipment, ensure the normal progress of the laser welding process, and reduce the maintenance cost and maintenance frequency of the laser lens. Description of the drawings

[0030] Figure 1 is a schematic structural diagram of the dust collection device provided by an embodiment of the present utility model;

[0031] Figure 2 is an exploded view of the dust collection device provided by an embodiment of the present utility model;

[0032] Figure 3 is a cross-sectional view of the dust collection device provided by an embodiment of the present utility model and a laser lens;

[0033] Figure 4 is Figure 3 a partial enlarged view of part A in

[0034] Figure 5It is an exploded view of the air flow speed increasing mechanism provided by an embodiment of the present utility model.

[0035] In the figure:

[0036] 100, dust collection device; 200, laser lens; 210, laser;

[0037] 10, installation main body; 11, air flow guide; 111, air flow guide block; 112, air flow guide baffle; 113, intake baffle; 115, dust collection channel; 1151, air outlet; 1152, top surface; 1153, bottom surface; 1154, air inlet; 12, base body; 13, laser channel;

[0038] 20, anti-backflow member; 21, first drainage surface; 22, transition surface; 23, second drainage surface;

[0039] 30, air flow speed increasing mechanism; 31, air knife seat; 311, air knife seat body; 3111, air knife high-pressure cavity; 31111, lower open end; 31112, communication port; 312, partition board; 3121, communication channel; 313, air gap; 32, sealing cover plate;

[0040] 40, intake plate; 41, buffer cavity;

[0041] 50, connector;

[0042] 60, filter assembly;

[0043] 70, first seal;

[0044] 80, second seal;

[0045] 90, third seal. Detailed implementation manners

[0046] The technical solution of the present utility model will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that, for the sake of convenience of description, only the parts related to the present utility model are shown in the drawings, rather than all of them.

[0047] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0048] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on the top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0049] In the description of the embodiments of the present disclosure, the orientation or positional relationships such as "above", "below", "left" and "right" are based on the orientation or positional relationships shown in the drawings. They are only for the convenience of description and simplifying the operations, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meanings.

[0050] The embodiments of the present disclosure disclose a laser welding device, which can weld metals. When the laser welding device performs laser welding, the laser welding will also generate pollutants such as splashing of molten metal and flying of fog-like dust. These foreign matters seriously affect the atmosphere. If inhaled into the human body, they are likely to cause respiratory diseases or other diseases. In addition, once these foreign matters enter the interior of the laser lens, they will damage the lens for laser transmission, resulting in the damage of the laser welding device. After the damage, it can no longer be used for processing applications, and the lens for laser transmission is also costly. Frequent damage and replacement are not practical.

[0051] To solve the above problems, as Figures 1 to 3 shown, the embodiments of the present disclosure provide a dust collection device 100, which includes a mounting main body 10 and an air flow driving mechanism (not shown in the figure). A laser channel 13 and a dust collection channel 115 that intersect with each other are formed on the mounting main body 10. The laser 210 emitted by the laser lens 200 can penetrate through the laser channel 13, and the laser 210 can weld metals. The dust collection channel 115 has an air outlet 1151, and the air flow driving mechanism can drive the air flow in the dust collection channel 115 to flow towards the air outlet 1151, so as to prevent pollutants such as splashing of molten metal and flying of fog-like dust from entering the environment or polluting the laser lens 200. Among them, the air flow driving mechanism can be a protective gas generating device or a vacuum cleaner. When the air flow driving mechanism is a protective gas generating device, the protective gas generating device is arranged upstream of the laser channel 13; when the air flow driving mechanism is a vacuum cleaner, the vacuum cleaner is arranged downstream of the laser channel 13.

[0052] However, pollutants are likely to accumulate downstream of the dust collection channel 115, and the pollutants are prone to flow backward, which can easily damage the interior of the laser lens 200, damage the lens for laser transmission, cause damage to the laser welding equipment, and render the laser welding equipment inoperable for further processing applications. Moreover, the lenses for laser transmission are costly, and frequent damage and replacement are not practical.

[0053] To solve the above problems, as Figures 1 to 3 shown, the dust collection device 100 further includes an anti-backflow member 20. The anti-backflow member 20 is disposed in the dust collection channel 115, between the air outlet 1151 and the laser channel 13. The anti-backflow member 20 can prevent pollutants in the dust collection channel 115 from flowing in the direction from the air outlet 1151 to the laser channel 13, prevent the backflow of pollutants, avoid damage to the interior of the laser lens 200, avoid damage to the laser lens 200 and the laser welding equipment, ensure the normal progress of the laser welding process, and reduce the maintenance cost and frequency of the laser lens 200.

[0054] As an optional embodiment, as Figure 3 shown, the dust collection channel 115 includes a top surface 1152 and a bottom surface 1153. The anti-backflow member 20 is disposed on the bottom surface 1153 and spaced at the lower end of the top surface 1152. The arrangement of the anti-backflow member 20 with such a structure can not only ensure the airflow in the dust collection channel 115 to flow toward the air outlet 1151, but also block the pollutants accumulated downstream of the dust collection channel 115 and prevent the pollutants accumulated downstream of the dust collection channel 115 from flowing back to the laser lens 200.

[0055] As an optional embodiment, as Figure 3 shown, the anti-backflow member 20 includes a first drainage surface 21, a transition surface 22, and a second drainage surface 23 that are arranged in sequence and connected in sequence in the direction from the laser channel 13 to the air outlet 1151. In the direction from the laser channel 13 to the air outlet 1151, the first drainage surface 21 is inclined upward, and the second drainage surface 23 is inclined downward. The first drainage surface 21, the transition surface 22, and the second drainage surface 23 can achieve a good drainage effect on the airflow in the dust collection channel 115 flowing toward the air outlet 1151.

[0056] As an optional embodiment, the transition surface 22 is an arc surface protruding toward the top surface 1152. The arrangement of the transition surface 22 can achieve a good transition effect between the first drainage surface 21 and the second drainage surface 23. The airflow and the transition surface 22 will produce a good wall attachment effect, and the airflow will flow closely along the surface of the transition surface 22, forming a very thin boundary layer, which can reduce the flow resistance of the airflow and improve the movement efficiency of the airflow.

[0057] As an optional embodiment, as Figures 1 to 3As shown, the installation main body 10 includes an air flow guide 11 and a base body 12. A through dust collection channel 115 is provided on the air flow guide 11. The base body 12 is disposed on the air flow guide 11. The laser channel 13 sequentially penetrates through the base body 12 and the air flow guide 11. The structure is simple and easy to manufacture.

[0058] As an alternative embodiment, as Figures 1 to 3 shown, the air flow guide 11 includes an air flow guide block 111, an air flow guide baffle 112, and an air inlet baffle 113. A dust collection channel 115 is provided on the air flow guide block 111. The dust collection channel 115 has an air inlet 1154. The air inlet baffle 113 is provided with the air inlet 1154. The air flow guide block 111, the air flow guide baffle 112, the air inlet baffle 113, and the base body 12 are jointly spliced to form the installation main body 10. The structure is simple and easy to manufacture.

[0059] As an alternative embodiment, as Figure 2 and Figure 3 shown, the dust collection channel 115 has an air inlet 1154. The dust collection device 100 further includes an air flow acceleration mechanism 30. The air flow acceleration mechanism 30 is disposed in the dust collection channel 115. The air flow acceleration mechanism 30 can accelerate the air flow (solid arrow) entering from the air inlet 1154. The air flow acceleration mechanism 30 can generate a high-speed air flow. Through the impact force of the air flow, pollutants (dashed arrow) can flow toward the air outlet 1151 together with the air flow entering from the air inlet 1154, achieving a good cleaning effect on the pollutants in the dust collection channel 115.

[0060] As an alternative embodiment, as Figures 3 to 5 shown, the air flow acceleration mechanism 30 can be an air knife. The air knife includes a connected air knife seat 31 and a sealing cover plate 32. The air knife seat 31 and the sealing cover plate 32 jointly form a connected air knife high-pressure chamber 3111 and an air slit 313. The air knife high-pressure chamber 3111 is connected to the air inlet 1154. The air slit 313 is disposed opposite to the laser channel 13. The air slit 313 can eject a high-pressure and high-speed fluid. The air knife can achieve a good pressurization and acceleration effect on the air flow entering from the air inlet 1154. In an alternative embodiment, the air flow acceleration mechanism 30 can also be a centrifugal fan, a worm gear supercharging mechanism, etc. All structures that can achieve a good pressurization and acceleration effect on the air flow entering from the air inlet 1154 are within the protection scope of this alternative embodiment.

[0061] As an alternative embodiment, as Figures 3 to 5As shown in the figure, the air knife seat 31 includes an air knife seat body 311 and a partition plate 312. The air knife high-pressure cavity 3111 is arranged in the air knife seat body 311 and has a lower open end 31111. The partition plate 312 extends backward from its front end to form a communication channel 3121, and the communication channel 3121 is connected to the lower open end 31111. The partition plate 312 is clamped between the air knife seat body 311 and the sealing cover plate 32. The front end of the air knife seat body 311 and the front end of the sealing cover plate 32 are spaced apart to form an air gap 313. The structure is simple and easy to manufacture.

[0062] As an optional embodiment, as Figures 1 to 3 shown in the figure, the air flow driving mechanism is a protective gas generating device. The protective gas generating device is directly or indirectly connected to the air inlet 1154, and the protective gas generating device can drive the air flow in the dust collection channel 115 to flow toward the air outlet 1151. As Figures 1 to 3 shown in the figure, the dust collection device 100 further includes an air inlet plate 40 and a connector 50. The air inlet plate 40 is located on one side of the installation main body 10, and the air inlet plate 40 and the installation main body 10 together form a buffer cavity 41 connected to the dust collection channel 115. The connector 50 is connected to the air inlet plate 40 and is connected to the buffer cavity 41. The air flow driving mechanism can be connected to the connector 50. Through the arrangement of the air inlet plate 40 and the connector 50, the dust collection device 100 can be quickly, conveniently and preferably connected to the air flow driving mechanism.

[0063] As an optional embodiment, as Figure 3 shown in the figure, the dust collection device 100 further includes a filter assembly 60. The filter assembly 60 is connected to the air outlet 1151, and the filter assembly 60 can achieve a good filtering and recycling effect on pollutants, avoid pollution of the external environment by pollutants, and reduce the harm to surrounding operators. Among them, the filter assembly 60 can be a dust filter, a filter screen assembly, etc. All structures that can achieve a good filtering and recycling effect on pollutants are within the protection scope of this optional embodiment.

[0064] As an optional embodiment, as Figure 3 shown in the figure, the dust collection device 100 further includes a first sealing member 70. The first sealing member 70 is arranged between the air inlet plate 40 and the air inlet baffle 113. The first sealing member 70 surrounds the outer periphery of the buffer cavity 41. The arrangement of the first sealing member 70 can effectively seal the connection position between the air inlet plate 40 and the air inlet baffle 113 and avoid the diffusion and overflow of air flow to the outside. Exemplarily, the first sealing member 70 can be a rubber ring, a silica gel ring, etc. All structures that can achieve the sealing and anti-overflow effect are within the protection scope of this optional embodiment.

[0065] As an optional embodiment, as Figure 3As shown, the dust collection device 100 further includes a second seal 80. The second seal 80 is disposed between the air flow acceleration mechanism 30 and the intake baffle 113. The air knife high-pressure chamber 3111 has a communication port 31112, and the communication port 31112 is connected to the intake port 1154. The second seal 80 surrounds the outer periphery of the communication port 31112 and the outer periphery of the intake port 1154. The setting of the second seal 80 can effectively seal the connection position of the communication port 31112 and the intake port 1154, and prevent the air flow from diffusing and overflowing to the outside. Exemplarily, the second seal 80 can be a rubber ring, a silica gel ring, etc. All structures that can achieve the sealing and anti-overflow effect are within the protection scope of this optional embodiment.

[0066] As an optional embodiment, as Figure 3 shown, the dust collection device 100 further includes a third seal 90. The third seal 90 is disposed between the laser lens 200 and the base body 12. The third seal 90 surrounds the outer periphery of the laser channel 13. The setting of the third seal 90 can effectively seal the connection position of the laser lens 200 and the base body 12, and prevent the air flow from diffusing and overflowing to the outside. Exemplarily, the third seal 90 can be a rubber ring, a silica gel ring, etc. All structures that can achieve the sealing and anti-overflow effect are within the protection scope of this optional embodiment.

[0067] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A dust collecting device, characterized in that: The dust collecting device comprises: An installation body (10), wherein the installation body (10) is provided with a laser channel (13) and a dust collection channel (115) that intersect with each other, and the dust collection channel (115) has an air outlet (1151); and The backflow prevention member (20) is arranged in the dust collection channel (115), and the backflow prevention member (20) is located between the air outlet (1151) and the laser channel (13). The backflow prevention member (20) can prevent pollutants in the dust collection channel (115) from flowing in the direction from the air outlet (1151) to the laser channel (13).

2. The dust collecting device according to claim 1, characterized in that: The dust collecting channel (115) comprises a top surface (1152) and a bottom surface (1153), and the backflow prevention member (20) is arranged on the bottom surface (1153) and is spaced apart at the lower end of the top surface (1152).

3. The dust collecting device according to claim 2, characterized in that: The backflow prevention member (20) comprises a first guide surface (21), a transition surface (22) and a second guide surface (23) which are arranged in sequence and connected in sequence in the direction from the laser channel (13) to the air outlet (1151); in the direction from the laser channel (13) to the air outlet (1151), the first guide surface (21) is inclined upward, and the second guide surface (23) is inclined downward.

4. The dust collecting device according to claim 3, characterized in that: The transition surface (22) is a curved surface that protrudes toward the top surface (1152).

5. The dust collecting device according to claim 1, characterized in that: The installation body (10) comprises: An airflow guide (11), wherein the airflow guide (11) is provided with a through dust collection channel (115); and The base (12) is arranged on the airflow guide (11), and the laser channel (13) passes through the base (12) and the airflow guide (11) in sequence.

6. The dust collecting device according to claim 1, characterized in that: The dust collecting channel (115) has an air inlet (1154), and the dust collecting device further comprises an airflow accelerating mechanism (30), wherein the airflow accelerating mechanism (30) is arranged in the dust collecting channel (115), and the airflow accelerating mechanism (30) can accelerate the airflow entering from the air inlet (1154).

7. The dust collecting device according to claim 6, characterized in that: The airflow accelerating mechanism (30) is an air knife, and the air knife comprises an air knife seat (31) and a sealing cover plate (32) connected to each other. The air knife seat (31) and the sealing cover plate (32) together constitute a connected air knife high-pressure chamber (3111) and an air gap (313). The air knife high-pressure chamber (3111) is connected to the air inlet (1154), and the air gap (313) is arranged opposite to the laser channel (13).

8. The dust collecting device according to claim 7, characterized in that: The air knife seat (31) comprises: An air knife seat body (311), wherein the air knife high pressure chamber (3111) is arranged on the air knife seat body (311) and has a lower opening (31111); and A partition (312), wherein the partition (312) extends backward from its front end to form a connecting passage (3121), wherein the connecting passage (3121) is connected to the lower opening (31111), and the partition (312) is sandwiched between the air knife seat body (311) and the sealing cover plate (32), and the front end of the air knife seat body (311) and the front end of the sealing cover plate (32) are spaced apart to form the air gap (313).

9. The dust collecting device according to claim 1, characterized in that: The dust collecting channel (115) has an air inlet (1154), and the dust collecting device further comprises: An airflow driving mechanism, the airflow driving mechanism is directly or indirectly connected to the air inlet (1154), and the airflow driving mechanism can drive the airflow in the dust collection channel (115) to flow toward the air outlet (1151).

10. The dust collecting device according to claim 9, characterized in that: The dust collecting device also includes: an air intake plate (40), the air intake plate (40) being located on one side of the installation body (10), and the air intake plate (40) and the installation body (10) together forming a buffer chamber (41) connected to the dust collection channel (115); and A connector (50) is connected to the air inlet plate (40) and communicates with the buffer chamber (41); the airflow drive mechanism can be communicated with the connector (50).

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