Lens protection structure and processing equipment

Abstract

The utility model discloses a lens protection structure and processing equipment, the lens protection structure comprises: a fixing member, the fixing member is provided with an accommodating cavity, a first light path through hole, a second light path through hole, an air inlet through hole and an air outlet through hole, the air inlet through hole and the air outlet through hole are arranged at two sides of a light path channel along a second direction, and the second direction is vertical to the first direction; the first air curtain assembly is arranged on the fixing piece, the first air curtain assembly and the light path channel are arranged in a spaced mode, the first air curtain assembly is located on the side where the air inlet through hole is formed, and the first air curtain assembly blows air from the air inlet through hole to the exhaust through hole; the second air curtain assembly and the containing cavity are arranged in a spaced mode, the second air curtain assembly is arranged on the side, provided with the second light path through hole, of the fixing piece, and the second air curtain assembly and the light path channel are arranged in a spaced mode. According to the embodiment of the utility model, a double-layer air curtain can be formed, welding slag is blown away, and the welding slag is prevented from burning the protective glass.

Description

Technical Field

[0001] The utility model relates to the technical field of laser processing, in particular to a lens protection structure and processing equipment. Background Art

[0002] During the laser welding process, a large amount of welding slag splashing is difficult to avoid, and the splashing welding slag can easily burn the protective lens, resulting in a short service life of the protective lens. Utility Model Content

[0003] The embodiment of the utility model provides a lens protection structure and processing equipment, which can form a double-layer air curtain to blow away welding slag and prevent the welding slag from burning the protective lens.

[0004] The lens protection structure proposed in the utility model is provided with an optical path channel arranged along a first direction, and the lens protection structure comprises:

[0005] A fixing member, wherein the fixing member is provided with a containing cavity, a first light path through hole, a second light path through hole, an air intake through hole and an exhaust through hole, the first light path through hole, the second light path through hole, the air intake through hole and the exhaust through hole are all in communication with the containing cavity, the first light path through hole and the second light path through hole are arranged on both sides of the containing cavity along a first direction so that the light path channel passes through the fixing member, the air intake through hole and the exhaust through hole are arranged on both sides of the light path channel along a second direction, and the second direction is perpendicular to the first direction;

[0006] a first air curtain assembly, the first air curtain assembly being arranged on the fixing member, the first air curtain assembly being spaced apart from the optical path, the first air curtain assembly being located at a side where the air inlet through hole is arranged, and the first air curtain assembly blowing air from the air inlet through hole to the exhaust through hole to limit welding slag from passing through the accommodating cavity into the first optical path through hole;

[0007] A second air curtain assembly is arranged at a distance from the accommodating cavity, the second air curtain assembly is arranged on a side of the fixing member where the second light path through hole is provided, the second air curtain assembly is arranged at a distance from the light path channel, and the second air curtain assembly blows air along the second direction to limit the welding slag from entering the accommodating cavity.

[0008] Optionally, the second air curtain assembly is detachably connected to the fixing member.

[0009] Optionally, the lens protection structure also includes a connecting piece, which includes two relatively arranged fixing sections and a connecting section connecting the two fixing sections, the connecting section abuts against the fixing piece, and one end of the two fixing sections away from the connecting section is respectively connected to the two end bolts of the second air curtain assembly.

[0010] Optionally, a waist-shaped hole is provided at one end of the fixing section away from the connecting section, and the fixing section is bolted to the second air curtain assembly via the waist-shaped hole.

[0011] Optionally, the first air curtain assembly includes a first air inlet component and a first air inlet connector, the first air inlet component is provided with a first air inlet, a first air cavity and a first air blowing port, the first air inlet and the first air blowing port are respectively connected to the two sides of the first air cavity along the second direction, the first air blowing port is arranged along the second direction, the first air inlet connector is arranged in the first air inlet along the second direction, and the projection of the first air blowing port along the second direction is spaced from the first air inlet.

[0012] Optionally, the first air curtain assembly is disposed in the air inlet hole, and a size of the first air curtain assembly is smaller than a size of the air inlet hole, so that a gap exists between the first air curtain assembly and the fixing member.

[0013] Optionally, a guide slope is provided on a side of the first air curtain assembly close to the gap.

[0014] Optionally, the first air curtain assembly is further provided with a ventilation hole, the ventilation hole is arranged along the second direction, and the ventilation hole is communicated with the accommodating cavity.

[0015] Optionally, the second air curtain assembly includes a second air inlet member and a second air inlet connector, the second air inlet member is provided with a second air inlet, a second air cavity and a second air blowing port, the second air inlet and the second air blowing port are respectively connected to the two sides of the second air cavity along the second direction, the second air blowing port is arranged along the second direction, the second air inlet connector is arranged in the second air inlet along the second direction, and the projection of the second air blowing port along the second direction is spaced from the second air inlet.

[0016] Optionally, the second air curtain assembly and the first air curtain assembly are located on the same side of the optical path.

[0017] Optionally, the lens protection structure further includes an extension sleeve, wherein the extension sleeve is disposed on a side of the fixing member where the first light path through hole is disposed, and the extension sleeve surrounds the first light path through hole.

[0018] The utility model also proposes a processing equipment, including a machine tool, a welding head, a protective mirror and a lens protection structure as described in any of the above embodiments, wherein the protective mirror is arranged on a side of the welding head close to the machine tool, and the lens protection structure is arranged on a side of the protective mirror close to the machine tool.

[0019] The lens protection structure and processing equipment provided by the embodiment of the utility model, the second air curtain assembly blows air to the welding slag to reduce the probability of the welding slag passing through the second optical path through hole into the accommodating cavity, and the first air curtain assembly blows air from the air inlet through hole to the exhaust through hole to further avoid the probability of the welding slag passing through the accommodating cavity into the first optical path through hole, that is, a double-layer air curtain is formed, which effectively reduces the probability of the welding slag passing through the second optical path through hole and the first optical path through hole and damaging the protective lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0021] Figure 1 This is a structural schematic diagram of an embodiment of the lens protection structure of the utility model;

[0022] Figure 2 It is a top view of another embodiment of the lens protection structure of the utility model;

[0023] Figure 3 for Figure 2 Sectional view at AA in the middle;

[0024] Figure 4 for Figure 3 The enlarged view of point B in the middle;

[0025] Figure 5 It is a rear view of another embodiment of the lens protection structure of the utility model;

[0026] Figure 6 It is a right side view of another embodiment of the lens protection structure of the utility model;

[0027] Figure 7 It is a left side view of another embodiment of the lens protection structure of the utility model;

[0028] Description of Figure Numbers:

[0029] Lens protection structure 100, optical path channel 101;

[0030] A fixing member 10, a receiving cavity 11, a first light path through hole 12, a second light path through hole 13, an air intake through hole 14, an exhaust through hole 15, and a gap 16;

[0031] A first air curtain assembly 20, a first air inlet member 21, a first air inlet port 211, a first air cavity 213, a first air blowing port 215, a first air inlet connector 23, a ventilation hole 25, and a guide slope 27;

[0032] A second air curtain assembly 30, a second air inlet member 31, a second air inlet port 311, a second air cavity 313, a second air blowing port 315, and a second air inlet connector 33;

[0033] Connecting piece 40, fixing section 41, waist-shaped hole 411, connecting section 43;

[0034] Extension sleeve 50.

[0035] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0038] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] It should be understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0041] See also Figures 1 to 4 The embodiment of the utility model provides a lens protection structure 100, which is provided with an optical path channel 101 arranged along a first direction, and includes a fixing member 10, a first air curtain assembly 20, and a second air curtain assembly 30. The fixing member 10 is provided with a receiving cavity 11, a first optical path through hole 12, a second optical path through hole 13, an air intake through hole 14, and an air exhaust through hole 15. The first optical path through hole 12, the second optical path through hole 13, the air intake through hole 14, and the air exhaust through hole 15 are all connected with the receiving cavity 11. The first optical path through hole 12 and the second optical path through hole 13 are arranged on both sides of the receiving cavity 11 along the first direction so that the optical path channel 101 can pass through the fixing member 10. The air intake through hole 14 and the air exhaust through hole 15 are arranged on both sides of the optical path channel 101 along the second direction, and the second direction is perpendicular to the first direction. The first air curtain assembly 20 is disposed on the fixing member 10, and the first air curtain assembly 20 is spaced apart from the optical path channel 101. The first air curtain assembly 20 is located on the side where the air inlet hole 14 is provided, and the first air curtain assembly 20 blows air from the air inlet hole 14 to the exhaust hole 15 to limit the welding slag from passing through the accommodating cavity 11 into the first optical path hole 12. The second air curtain assembly 30 is spaced apart from the accommodating cavity 11, and the second air curtain assembly 30 is disposed on the side where the second optical path hole 13 is provided on the fixing member 10, and the second air curtain assembly 30 is spaced apart from the optical path channel 101, and the second air curtain assembly 30 blows air along the second direction to limit the welding slag from entering the accommodating cavity 11.

[0042] In the embodiment of the utility model, the second air curtain assembly 30 blows air to the welding slag to reduce the probability of the welding slag passing through the second optical path through hole 13 and entering the accommodating chamber 11. The first air curtain assembly 20 blows air from the air inlet through hole 14 to the exhaust through hole 15 to further avoid the probability of the welding slag passing through the accommodating chamber 11 and entering the first optical path through hole 12, that is, a double-layer air curtain is formed, which effectively reduces the probability of the welding slag passing through the second optical path through hole 13 and the first optical path through hole 12 and damaging the protective mirror.

[0043] Specifically, the optical path channel 101 is used for laser to pass through, so as to realize laser welding. It is understandable that welding slag can easily contact the protective lens through the optical path channel 101 and burn the protective lens. Therefore, the first air curtain assembly 20 and the second air curtain assembly 30 are provided to blow away the welding slag without blocking the optical path channel 101, so as to prevent the welding slag from burning the protective lens.

[0044] It can be understood that the fixing part 10 is used to fix the first air curtain assembly 20 and the second air curtain assembly 30. In addition, the fixing part 10 can also play a role in blocking welding slag. It can be understood that welding slag can only pass through the first light path through hole 12 and the second light path through hole 13 provided on the fixing part 10 to the protective mirror. Therefore, the welding slag around the first light path through hole 12 and the second light path through hole 13 cannot contact the protective mirror due to the blocking effect of the fixing part 10, thereby realizing the protection of the protective mirror by the fixing part 10.

[0045] It can be understood that the air inlet hole 14 is used for blowing air, and the welding slag is discharged from the accommodating chamber 11 along the exhaust hole 15 under the action of the air curtain. Specifically, the air inlet hole 14 can provide an air curtain, and the air inlet hole 14 can be used to set the first air curtain assembly 20. At this time, the first air curtain assembly 20 can cover the air inlet hole 14; the air inlet hole 14 can also be used to set the first air curtain assembly 20 and to provide air for the accommodating chamber 11. At this time, the first air curtain assembly 20 can be set in the air inlet hole 14, and the size of the first air curtain assembly 20 is smaller than the size of the air inlet hole 14, so that the air inlet hole 14 can also pass through the first The periphery of the air curtain assembly 20 provides airflow to the accommodating chamber 11, so as to provide sufficient airflow for the action of the air curtain, thereby achieving a better effect of the air curtain blocking welding slag; the air inlet hole 14 can also be used to provide conditions for the first air curtain assembly 20 to blow air into the accommodating chamber 11, that is, the first air curtain assembly 20 can be arranged outside the air inlet hole 14, and the first air curtain assembly 20 blows air into the accommodating chamber 11 through the air inlet hole 14 to form an air curtain, thereby blocking the welding slag in the accommodating chamber 11 from passing through the accommodating chamber 11 into the first optical path hole 12.

[0046] The first air curtain assembly 20 is used to provide an air curtain to blow the welding slag away from the accommodating chamber 11 from the exhaust through hole 15. It can be understood that the first air curtain assembly 20 can include an air blowing joint, and the air blowing joint blows air to form an air curtain; the first air curtain assembly 20 can also include an air blowing joint and an air flow adjustment member, the air blowing joint blows air into the air flow adjustment member, and the air flow adjustment member is provided with an air curtain exhaust port, and the air flow of the air blowing joint is discharged through the air curtain exhaust port to adjust the air flow shape and air flow rate to form an air curtain with a better effect. This application does not make specific restrictions. Specifically, the shape of the air curtain exhaust port can affect the shape of the air flow. It can be understood that when the air flow rate blown out by the air blowing joint is the same, the smaller the size of the air curtain exhaust port, the greater the air flow rate discharged through the air curtain exhaust port, and thus the air curtain exhaust port can also adjust the air flow rate. The first air curtain assembly 20 can form an air curtain to blow the welding slag away from the accommodating chamber 11, and this application does not make specific restrictions on the structure of the first air curtain assembly 20.

[0047] The second air curtain assembly 30 is used to provide an air curtain to blow away the welding slag and prevent the welding slag from entering the accommodating chamber 11 through the second optical path through hole 13. It can be understood that the second air curtain assembly 30 can include an air blowing joint, and the air blowing joint blows air to form an air curtain; the second air curtain assembly 30 can also include an air blowing joint and an air flow adjustment member, the air blowing joint blows air into the air flow adjustment member, and the air flow adjustment member is provided with an air curtain exhaust port, and the air flow of the air blowing joint is discharged through the air curtain exhaust port to adjust the air flow shape and air flow rate to form an air curtain with a better effect. This application does not make specific restrictions. Specifically, the shape of the air curtain exhaust port can affect the shape of the air flow. It can be understood that when the air flow rate blown out by the air blowing joint is the same, the smaller the size of the air curtain exhaust port, the greater the air flow rate discharged through the air curtain exhaust port, and thus the air curtain exhaust port can also adjust the air flow rate. The second air curtain assembly 30 can form an air curtain to blow away the welding slag and prevent the welding slag from entering the accommodating chamber 11 through the second optical path through hole 13. This application does not make specific restrictions on the structure of the second air curtain assembly 30.

[0048] It can be understood that there are many ways to detachably connect the second air curtain assembly 30 to the fixing member 10. The second air curtain assembly 30 can be detachably connected to the fixing member 10 by means of connection methods such as snap connection and bolt connection. The second air curtain assembly 30 can also be detachably connected by other structures. The connection method of other structures to the fixing member 10 indirectly realizes the detachable connection of the second air curtain assembly 30 to the fixing member 10, and this application does not make specific restrictions.

[0049] See also Figure 1 and Figures 5 to 7 In the embodiment of the utility model, the second air curtain assembly 30 is detachably connected to the fixing member 10 .

[0050] In this way, since the second air curtain assembly 30 is detachably connected to the fixing member 10, the single-layer air curtain and the double-layer air curtain can be switched as needed to adapt to smaller installation spaces, protection requirements with less welding slag, and the like.

[0051] See also Figure 1 and Figures 5 to 7 Furthermore, the lens protection structure 100 also includes a connecting member 40, which includes two relatively arranged fixing sections 41 and a connecting section 43 connecting the two fixing sections 41, the connecting section 43 abuts against the fixing member 10, and one end of the two fixing sections 41 away from the connecting section 43 is respectively connected to the two end bolts of the second air curtain assembly 30.

[0052] In this way, the two ends of the second air curtain assembly 30 are respectively bolted to the two fixing sections 41 to achieve a detachable connection between the second air curtain assembly 30 and the fixing member 10; in addition, since the second air curtain assembly 30 is detachably connected to the fixing member 10 through the connecting member 40, the relative position relationship between the second air curtain assembly 30 and the fixing member 10 can be simply and conveniently adjusted by adjusting the length and position of the connecting member 40, thereby reducing the requirements for the structure of the fixing member 10 and adapting to the requirements of more installation positions of the second air curtain assembly 30; in addition, since the two ends of the second air curtain assembly 30 are bolted to the fixing sections 41, when it is necessary to adjust the blowing direction of the second air curtain assembly 30, the bolts can be loosened, the second air curtain assembly 30 can be rotated to the desired angle, and then the bolts can be tightened to fix it, thereby achieving the effect of adjusting the air curtain direction of the second air curtain assembly 30 as needed.

[0053] It is understandable that when only a single-layer air curtain is required, the bolts can be loosened, and the second air curtain assembly 30 can be detached from the connecting section 43, thereby separating the second air curtain assembly 30 from the fixing member 10; when a double-layer air curtain is required, the second air curtain assembly 30 is matched with the fixing section 41 through bolts.

[0054] It is worth noting that the connecting section 43 can not only abut against the fixing member 10, but also be bolted to the fixing member 10. In this way, the connecting section 43 can be placed on the fixing member 10, and then connected to the fixing member 10 by bolts. Not only can the connecting section 43 be limited before the fixing member 10 and the connecting section 43 are bolted, so as to facilitate the bolt connection between the fixing member 10 and the connecting section 43, but also the connecting section 43 can be limited by bolts to ensure the stability of the relative position relationship between the connecting member 40 and the fixing member 10; in addition, the connecting member 40 and the fixing member 10 are connected by abutment and bolt connection, so as to realize the detachable connection between the connecting member 40 and the fixing member 10, so as to facilitate the installation or removal of the connecting member 40 as needed.

[0055] For further information, see Figure 5 A waist-shaped hole 411 is provided at one end of the fixing section 41 away from the connecting section 43 , and the fixing section 41 is bolted to the second air curtain assembly 30 through the waist-shaped hole 411 .

[0056] In this way, the bolt can move in the waist-shaped hole 411 to adjust the relative position relationship between the second air curtain assembly 30 and the fixed section 41, thereby adjusting the relative position relationship between the second air curtain assembly 30 and the fixing member 10, and conveniently adjusting the position of the second air curtain assembly 30 as needed to achieve a better effect of blowing away the welding slag.

[0057] It can be understood that the waist-shaped hole 411 can be set along the first direction, the waist-shaped hole 411 can be set along the second direction, or the waist-shaped hole 411 can be set along a direction at a certain angle to the first direction. The setting direction of the waist-shaped hole 411 is set according to the requirements of the position adjustment of the second air curtain assembly 30, and this application does not make specific restrictions.

[0058] See also Figures 2 to 4 In the embodiment of the utility model, the first air curtain assembly 20 includes a first air inlet member 21 and a first air inlet connector 23. The first air inlet member 21 is provided with a first air inlet port 211, a first air cavity 213 and a first air blowing port 215. The first air inlet port 211 and the first air blowing port 215 are respectively connected to the two sides of the first air cavity 213 along the second direction. The first air blowing port 215 is arranged along the second direction. The first air inlet connector 23 is arranged in the first air inlet port 211 along the second direction. The projection of the first air blowing port 215 along the second direction is spaced from the first air inlet port 211.

[0059] In this way, after the airflow enters the first air cavity 213 from the first air inlet 211, it first passes through the cavity wall of the first air cavity 213 evenly, and then is discharged through the first air outlet 215 to form an air curtain, so that the air curtain is more uniform and has a better effect in blocking welding slag.

[0060] Specifically, the first air inlet connector 23 blows air into the first air cavity 213 through the first air inlet 211. Since the projection of the first air inlet 215 along the second direction is spaced from the first air inlet 211, the airflow will not be directly discharged from the first air inlet 215 after entering the first air cavity 213 from the first air inlet 211, but will first collide with the cavity wall of the first air cavity 213, and after passing through the cavity wall of the first air cavity 213 evenly, it will be discharged from the first air inlet 215, so that the air curtain is more uniform.

[0061] It is understandable that the first air inlet member 21 can be integrally formed, or it can be separately provided. In a certain embodiment, the first air inlet member 21 includes an air inlet block and an air guide plate, the air inlet block and the air guide plate are arranged to form a first air cavity 213, the first air inlet port 211 is arranged on the air inlet block, the first air blowing port 215 is arranged at the connection between the air inlet block and the air guide plate, and the air inlet block and the air guide plate are bolted. In this way, it is more convenient to process the first air cavity 213, and it is also convenient to install and adjust the first air inlet joint 23.

[0062] See also Figure 3 and Figure 4 In the embodiment of the utility model, the first air curtain assembly 20 is disposed in the air inlet hole 14 , and the size of the first air curtain assembly 20 is smaller than the size of the air inlet hole 14 , so that a gap 16 is formed between the first air curtain assembly 20 and the fixing member 10 .

[0063] In this way, air can be ventilated into the accommodating chamber 11 through the gap 16, and sufficient gas can be provided in the accommodating chamber 11, so as to maintain a good air curtain effect.

[0064] For further information, see Figure 3 and Figure 4 A guide slope 27 is provided on one side of the first air curtain assembly 20 close to the gap 16 .

[0065] In this way, the guiding slope 27 can guide the gas when it enters the accommodating chamber 11 from the gap 16, thereby achieving a better air intake effect.

[0066] Specifically, the guide slope 27 can be a straight line or an arc. The guide slope 27 is adjusted according to the need for guide, and this application does not impose any specific restrictions.

[0067] See also Figure 3 , Figure 4 , Figure 6 and Figure 7 In the embodiment of the utility model, the first air curtain assembly 20 is further provided with a ventilation hole 25 , the ventilation hole 25 is arranged along the second direction, and the ventilation hole 25 is communicated with the accommodating cavity 11 .

[0068] In this way, air can be ventilated into the accommodating chamber 11 through the ventilation holes 25, and sufficient gas can be provided in the accommodating chamber 11, so as to maintain a good air curtain effect.

[0069] See also Figure 3 and Figure 4 In the embodiment of the utility model, the second air curtain assembly 30 includes a second air inlet member 31 and a second air inlet connector 33. The second air inlet member 31 is provided with a second air inlet port 311, a second air cavity 313 and a second air blowing port 315. The second air inlet port 311 and the second air blowing port 315 are respectively connected with the two sides of the second air cavity 313 along the second direction. The second air blowing port 315 is arranged along the second direction. The second air inlet connector 33 is arranged in the second air inlet port 311 along the second direction. The projection of the second air blowing port 315 along the second direction is spaced from the second air inlet port 311.

[0070] In this way, after the airflow enters the second air cavity 313 from the second air inlet 311, it first passes through the cavity wall of the second air cavity 313 evenly, and then is discharged through the second air blowing port 315 to form an air curtain, so that the air curtain is more uniform and has a better effect in blocking welding slag.

[0071] Specifically, the second air inlet connector 33 blows air into the second air cavity 313 through the second air inlet port 311. Since the projection of the second air outlet 315 along the second direction is spaced from the second air inlet port 311, the airflow will not be directly discharged from the second air outlet 315 after entering the second air cavity 313 from the second air inlet port 311, but will first collide with the cavity wall of the second air cavity 313, and after passing through the cavity wall of the second air cavity 313 evenly, it will be discharged from the second air outlet 315, so that the air curtain is more uniform.

[0072] It is understandable that the second air inlet 31 can be integrally formed, or it can be separately provided. In a certain embodiment, the second air inlet 31 includes a fixed block and a fixed cover, the fixed block and the fixed cover are arranged to form a second air cavity 313, the second air inlet 311 is arranged on the fixed block, the second air outlet 315 is arranged at the connection between the fixed block and the fixed cover, and the fixed block and the fixed cover are bolted. In this way, it is more convenient to process the second air cavity 313, and it is also convenient to install and adjust the second air inlet connector 33.

[0073] See also Figure 1 , Figure 3 , Figure 5 In the embodiment of the utility model, the second air curtain assembly 30 and the first air curtain assembly 20 are located on the same side of the optical path channel 101 .

[0074] In this way, the second air curtain assembly 30 and the first air curtain assembly 20 both blow in one direction, that is, the effect of the first air curtain assembly 20 can be superimposed on the effect of the second air curtain assembly 30. When the second air curtain assembly 30 fails to blow away the welding slag, the first air curtain assembly 20 blows in the same direction, which can better blow away the welding slag and achieve the effect of better protecting the protective mirror.

[0075] It can be understood that when the directions of the first air curtain assembly 20 and the second air curtain assembly 30 are opposite to each other, the first air curtain assembly 20 needs to offset the speed imparted to the welding slag by the second air curtain assembly 30 before it can move the welding slag away from the accommodating chamber 11. When the directions of the first air curtain assembly 20 and the second air curtain assembly 30 are the same, the first air curtain assembly 20 can be superimposed on the speed imparted to the welding slag by the second air curtain assembly 30, thereby accelerating the blowing of the welding slag away from the accommodating chamber 11 and achieving a better effect of removing the welding slag.

[0076] See also Figure 1 and Figures 5 to 7 In the embodiment of the utility model, the lens protection structure 100 further includes an extension sleeve 50 , which is disposed on one side of the fixing member 10 where the first optical path through hole 12 is disposed, and the extension sleeve 50 surrounds the first optical path through hole 12 .

[0077] In this way, the distance from the welding slag to the protective mirror can be extended, and the welding slag can be discharged from the extension sleeve 50 under the action of gravity, further ensuring that the welding slag cannot contact the protective mirror.

[0078] An embodiment of the utility model also provides a processing equipment, which includes a machine tool, a welding head, a protective mirror and a lens protection structure 100. The protective mirror is arranged on the side of the welding head close to the machine tool, and the lens protection structure 100 is arranged on the side of the protective mirror close to the machine tool. The specific structure of the lens protection structure 100 refers to the above embodiment. Since the processing equipment adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments.

[0079] In the processing equipment in the embodiment of the utility model, the second air curtain assembly 30 blows air to the welding slag to reduce the probability of the welding slag passing through the second optical path through hole 13 and entering the accommodating chamber 11, and the first air curtain assembly 20 blows air from the air inlet through hole 14 to the exhaust through hole 15 to further avoid the probability of the welding slag passing through the accommodating chamber 11 and entering the first optical path through hole 12, that is, a double-layer air curtain is formed, which effectively reduces the probability of the welding slag passing through the second optical path through hole 13 and the first optical path through hole 12 and damaging the protective mirror.

[0080] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A lens protection structure, characterized in that: The lens protection structure is provided with an optical path channel arranged along a first direction, and the lens protection structure comprises: A fixing member, wherein the fixing member is provided with a containing cavity, a first light path through hole, a second light path through hole, an air intake through hole and an exhaust through hole, the first light path through hole, the second light path through hole, the air intake through hole and the exhaust through hole are all in communication with the containing cavity, the first light path through hole and the second light path through hole are arranged on both sides of the containing cavity along a first direction so that the light path channel passes through the fixing member, the air intake through hole and the exhaust through hole are arranged on both sides of the light path channel along a second direction, and the second direction is perpendicular to the first direction; a first air curtain assembly, the first air curtain assembly being arranged on the fixing member, the first air curtain assembly being spaced apart from the optical path, the first air curtain assembly being located on a side where the air inlet through hole is arranged, and the first air curtain assembly blowing air from the air inlet through hole to the exhaust through hole to limit welding slag from passing through the accommodating cavity into the first optical path through hole; A second air curtain assembly is arranged at a distance from the accommodating cavity, the second air curtain assembly is arranged on a side of the fixing member where the second light path through hole is provided, the second air curtain assembly is arranged at a distance from the light path channel, and the second air curtain assembly blows air along the second direction to limit the welding slag from entering the accommodating cavity.

2. The lens protection structure according to claim 1, characterized in that: The second air curtain assembly is detachably connected to the fixing member.

3. The lens protection structure according to claim 2, characterized in that: The lens protection structure also includes a connecting piece, which includes two relatively arranged fixing sections and a connecting section connecting the two fixing sections, the connecting section abuts against the fixing piece, and one end of the two fixing sections away from the connecting section is respectively connected to the two end bolts of the second air curtain assembly.

4. The lens protection structure according to claim 3, characterized in that: A waist-shaped hole is provided at one end of the fixing section away from the connecting section, and the fixing section is bolted to the second air curtain assembly through the waist-shaped hole.

5. The lens protection structure according to claim 1, wherein: The first air curtain assembly includes a first air inlet component and a first air inlet connector. The first air inlet component is provided with a first air inlet, a first air cavity and a first air blowing port. The first air inlet and the first air blowing port are respectively connected to the two sides of the first air cavity along the second direction. The first air blowing port is arranged along the second direction. The first air inlet connector is arranged in the first air inlet along the second direction. The projection of the first air blowing port along the second direction is spaced from the first air inlet.

6. The lens protection structure according to claim 1, wherein: The first air curtain assembly is arranged in the air inlet hole, and the size of the first air curtain assembly is smaller than the size of the air inlet hole, so that there is a gap between the first air curtain assembly and the fixing member.

7. The lens protection structure according to claim 6, characterized in that: A flow guiding slope is provided on one side of the first air curtain assembly close to the gap.

8. The lens protection structure according to claim 1 or 6, characterized in that: The first air curtain assembly is further provided with a ventilation hole, the ventilation hole is arranged along the second direction, and the ventilation hole is communicated with the accommodating cavity.

9. The lens protection structure according to claim 1, wherein: The second air curtain assembly includes a second air inlet member and a second air inlet connector, the second air inlet member is provided with a second air inlet, a second air cavity and a second air blowing port, the second air inlet and the second air blowing port are respectively connected with the two sides of the second air cavity along the second direction, the second air blowing port is arranged along the second direction, the second air inlet connector is arranged in the second air inlet along the second direction, and the projection of the second air blowing port along the second direction is spaced from the second air inlet.

10. The lens protection structure according to claim 1, wherein: The second air curtain assembly and the first air curtain assembly are located on the same side of the optical path.

11. The lens protection structure according to claim 1, wherein: The lens protection structure also includes an extension sleeve, which is arranged on a side of the fixing member where the first light path through hole is arranged, and the extension sleeve surrounds the first light path through hole.

12. A processing equipment, characterized in that: It comprises a machine tool, a welding head, a protective mirror and a lens protection structure as described in any one of claims 1 to 11, wherein the protective mirror is arranged on a side of the welding head close to the machine tool, and the lens protection structure is arranged on a side of the protective mirror close to the machine tool.

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