Dustproof air blowing switch and laser processing head

Abstract

The application relates to a dustproof air blowing switch and a laser processing head and relates to the technical field of laser processing. The dustproof air blowing switch comprises a seat body and a switch assembly. The seat body is provided with an air path channel, and the air path channel is provided with a mounting portion. The switch assembly comprises a rotating body which is rotatably mounted on the mounting portion; the rotating body is provided with a through hole, and the rotating body is provided with a protruding portion at a position away from the through hole. When the rotating body rotates to a first state, the protruding portion abuts against a contact switch assembly of an air knife assembly in the laser processing head, and the through hole is communicated with the air path channel; when the rotating body rotates to a second state, the protruding portion is disengaged from the contact switch assembly, and the rotating body blocks the air path channel. The dustproof air blowing switch combines the two actions of starting or closing the air knife assembly and opening or closing the dustproof structure, is more simple and convenient to operate, can prevent an operator from forgetting to perform dustproof protection, and is high in practicability.

Description

Technical Field

[0001] This application relates to the field of laser processing technology, and more specifically, to a dustproof air blowing switch and a laser processing head. Background Technology

[0002] There are two main types of protective air blowing devices for laser welding heads: coaxial direct blowing head and air knife. When using tooling fixtures and for remote welding, only air knife can be used due to welding scheme limitations.

[0003] In related technologies, the dustproof device needs to be turned on before using the air knife. During use, the switch needs to be manually pressed to blow air to prevent dust from entering the laser welding area. After use, dustproof protection is easily overlooked; if dust gets in, it can easily damage the protective lens during the next use. Utility Model Content

[0004] In order to at least address some of the deficiencies mentioned in the related technologies, this application provides a dustproof air blowing switch and a laser processing head.

[0005] To achieve the above objectives, this application provides a dustproof air blower switch for use on a laser processing head. The dustproof air blower switch includes a base and a switch assembly. The base has an air passage, and a mounting portion is provided within the air passage. The switch assembly includes a rotating body rotatably mounted on the mounting portion; the rotating body has a through hole, and a protrusion is provided on the rotating body away from the through hole. When the rotating body rotates to a first state, the protrusion abuts against the contact switch assembly of the air knife assembly in the laser processing head, and the through hole communicates with the air passage; when the rotating body rotates to a second state, the protrusion disengages from the contact switch assembly, and the rotating body blocks the air passage.

[0006] Furthermore, the rotating body is set as a cylinder, and the axis of the cylinder is set to coincide with the rotation center of the rotating body.

[0007] Furthermore, the through hole is set as a rectangular hole, and the two short sides of the rectangular hole are located near the end of the rotating body.

[0008] Furthermore, one end of the rotating body is provided with an end body, and a positioning part is provided on the end body. A first positioning groove and a second positioning groove are provided at corresponding positions on the base body; when the rotating body rotates to the first state, the positioning part is fixed relative to the first positioning groove. When the rotating body rotates to the second state, the positioning part is fixed relative to the second positioning groove.

[0009] Furthermore, the positioning part is configured as a through groove, and both the first positioning groove and the second positioning groove are configured as straight grooves. A ball-head plunger is movably inserted into the through groove, and the ball-head plunger can be inserted into either the first positioning groove or the second positioning groove.

[0010] Furthermore, an arc-shaped groove is provided on the end body, and the center of the arc-shaped groove is concentric with the rotation center of the rotating body. A limiting part is provided on the base body, and the limiting part extends into the arc-shaped groove.

[0011] Furthermore, the arc-shaped groove includes a first end and a second end. When the limiting part is located at the first end, the rotating body is in a first state; when the limiting part is located at the second end, the rotating body is in a second state.

[0012] Furthermore, the limiting part is set as a limiting pin, and the diameter of the limiting pin is the same as the width of the arc groove.

[0013] Furthermore, the mounting part is configured as a circular groove, and the rotating body is rotatably mounted in the circular groove, with the rotating body fitting against the inner wall of the circular groove.

[0014] This application also provides a laser processing head, including a laser processing component and a dustproof air blower switch as described in any of the above embodiments, wherein the dustproof air blower switch is used to control the air knife component of the laser processing head.

[0015] With the above technical solution, when using the dustproof air blowing switch of this application, if it is necessary to blow air onto the laser processing head, rotate the rotating body in the switch assembly to make the rotating body in the first state. At this time, the through hole of the rotating body is connected to the air passage, and the protrusion of the rotating body abuts against the contact switch assembly, so that the air knife assembly is activated and blows air into the air passage along the through hole.

[0016] After the laser processing head finishes working, rotate the rotating body in the rotating switch assembly to put the rotating body in the second state. At this time, the protrusion of the rotating body separates from the contact switch assembly, the air knife assembly stops blowing air, and at the same time, the through hole of the rotating body is no longer connected to the air passage. That is, the rotating body seals the air passage to prevent dust from drifting along the air passage to the laser processing head and protect the laser processing head.

[0017] The dustproof air-blowing switch of this application combines the two actions of starting or stopping the air knife assembly with opening or closing the dustproof structure. In use, starting the air knife assembly opens the air passage; stopping the air knife assembly closes the air passage for dust prevention. This not only makes operation simpler and more convenient but also prevents operators from forgetting to perform dust protection, thus avoiding damage to the laser processing head lens due to dust contact. It is highly practical.

[0018] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the structure of the dustproof air blowing switch in the first state provided in the embodiment of this application;

[0021] Figure 2 A structural schematic diagram from another perspective of the first state of the dustproof air blowing switch provided in the embodiments of this application;

[0022] Figure 3 A schematic diagram of the second state of the dustproof air blowing switch provided in an embodiment of this application;

[0023] Figure 4 This is a schematic diagram of the structure of a switching assembly provided in an embodiment of this application from one perspective;

[0024] Figure 5 A schematic diagram of the switching assembly provided in an embodiment of this application from another perspective;

[0025] Figure 6 This is a structural schematic diagram of the switching assembly provided in an embodiment of this application from another perspective.

[0026] icon:

[0027] 100-Base; 110-First support member; 111-First positioning groove; 112-Second positioning groove; 113-Limiting part; 120-Second support member; 130-Contact switch assembly; 200-Switch assembly; 210-Rotating body; 211-Through hole; 212-Protrusion; 220-End body; 221-Positioning part; 222-Arc groove; 300-Air knife assembly; 310-Air passage. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] This embodiment provides a dustproof air blowing switch to solve the problem in related technologies where the dustproof structure and the air blowing structure need to be operated separately, and the operator may easily forget to turn off the dustproof structure, which can easily damage the lens of the laser processing head.

[0032] Please see Figures 1 to 3 This embodiment provides a dustproof air blower switch for use on a laser processing head. The dustproof air blower switch includes a base 100 and a switch assembly 200. The base 100 is provided with an air passage 310, and a mounting part is provided in the air passage 310. The switch assembly 200 includes a rotating body 210, which is rotatably mounted on the mounting part; the rotating body 210 has a through hole 211, and a protrusion 212 is provided on the rotating body 210 at a position away from the through hole 211. When the rotating body 210 rotates to a first state, the protrusion 212 abuts against the contact switch assembly 130 of the air knife assembly 300 in the laser processing head, and the through hole 211 communicates with the air passage 310; when the rotating body 210 rotates to a second state, the protrusion 212 disengages from the contact switch assembly 130, and the rotating body 210 blocks the air passage 310.

[0033] Specifically, when using the dustproof air blowing switch of this embodiment, if it is necessary to blow air onto the lens position of the laser processing head, rotate the rotating body 210 in the switch assembly 200 to put it in the first state. At this time, the through hole 211 on the rotating body 210 is connected to the air passage 310, and the protrusion 212 on the rotating body 210 abuts against the contact switch assembly 130 of the air knife assembly 300. The contact switch assembly 130 is electrically connected to the air knife assembly 300. After the contact switch assembly 130 is triggered, it sends an electrical signal to the air knife assembly 300, starts the air knife assembly 300, and causes the air knife assembly 300 to start blowing air into the air passage 310 through the through hole 211, and the air knife assembly 300 begins to work normally.

[0034] After the laser processing head finishes its work, the rotating body 210 in the rotating switch assembly 200 is moved to the second state. During rotation, the protrusion 212 disengages from the contact switch assembly 130, the contact switch assembly 130 ceases to emit electrical signals, and the air knife assembly 300 stops working and stops blowing air. Afterward, the rotating body 210 continues to rotate, and the through hole 211 on the rotating body 210 rotates until it is no longer connected to the air passage 310. The rotating body 210, in conjunction with the base 100, forms a dustproof structure for the laser processing head.

[0035] In this embodiment, the opening and closing of the air knife assembly 300 is combined with the opening and closing of the dustproof structure. This allows the operator to simultaneously open the air knife assembly 300 and the dustproof structure while using the laser processing head, enabling the air knife assembly 300 to blow air onto the lens of the laser processing head. After blowing air, the air knife assembly 300 can be simultaneously closed and the dustproof structure shut off. This simplifies the operation steps for the operator, making this embodiment easier to use. It also effectively prevents the operator from forgetting to close the dustproof structure after use, ensuring effective protection of the laser processing head lens and improving the practicality of this embodiment.

[0036] It is understood that in this embodiment, the contact switch assembly 130 can be any existing equipment or device selected according to the actual situation, as long as it can meet the requirements of this embodiment.

[0037] In one embodiment, exemplarily, such as Figure 1 , Figure 2 As shown, the base 100 is formed by splicing a first support member 110 and a second support member 120. The mounting portion of the rotating body 210 is also formed by splicing the first support member 110 and the second support member 120, and the contact switch assembly 130 is disposed on the second support member 120. This effectively reduces the installation difficulty of the contact switch assembly 130 of the base 100, making this embodiment easier to manufacture.

[0038] In one embodiment, exemplarily, such as Figures 4 to 6 As shown, the rotating body 210 is configured as a cylinder, with its axis coinciding with the center of rotation. The cylindrical shape makes the rotating body 210 more stable during rotation. Because of its symmetrical shape and the coincidence of its axis with the center of rotation, imbalances or vibrations caused by irregular shapes are reduced, ensuring stability during rotation, which in turn ensures the stability of this embodiment during use.

[0039] The symmetry and fixed center of rotation of the cylindrical rotating body 210 make it easier to achieve precise angle control of the rotating body 210 in this embodiment. For example, when switching between the first and second states, the position of the rotating body 210 can be positioned more accurately, ensuring more precise connection or blockage of the through hole 211 and the air passage 310.

[0040] In one embodiment, exemplarily, such as Figure 4 , Figure 5 As shown, the through-hole 211 is a rectangular hole, with its two short sides positioned near the end of the rotating body 210. The rectangular cross-sectional shape of the through-hole 211 allows for precise control of the airflow and direction as needed. Compared to other through-hole shapes, such as circular holes, the rectangular hole provides a larger opening area, allowing for more flexible adjustment of the airflow direction and distribution. This ensures that the airflow effectively covers the target area, such as the lens position of a laser processing head, improving cleaning efficiency. Furthermore, compared to a circular hole of the same area, a rectangular hole better maintains the overall structural strength of the rotating body 210. Especially when the short sides of the rectangular hole are close to the end, it reduces the impact on the main structure of the rotating body 210, preventing structural fragility caused by excessively large openings, thereby extending the equipment's service life.

[0041] Furthermore, the rectangular hole has a clear directionality, which helps to better position and guide the rotation. For example, during the transition of the rotating body 210 from the first state to the second state, the shape of the rectangular hole can help ensure that the rotating body 210 accurately completes the connection or blockage operation between the through hole 211 and the air passage 310, thereby improving the accuracy of the operation.

[0042] Furthermore, in this embodiment, the two short sides of the rectangular hole are positioned close to the ends of the rotating body 210. This effectively ensures the size of the through hole 211, thereby ensuring smooth gas flow through the through hole 211 and guaranteeing the practicality of this embodiment.

[0043] In one embodiment, exemplarily, such as Figure 2 , Figure 4 , Figure 5 , Figure 6As shown, one end of the rotating body 210 is provided with an end body 220, and a positioning part 221 is provided on the end body 220. A first positioning groove 111 and a second positioning groove 112 are provided at corresponding positions on the base body 100. When the rotating body 210 rotates to the first state, the positioning part 221 is fixed relative to the first positioning groove 111. When the rotating body 210 rotates to the second state, the positioning part 221 is fixed relative to the second positioning groove 112.

[0044] The cooperation between the positioning part 221 and the positioning groove ensures stable switching of the rotating body 210 between two different working states. Whether in the first state with the airflow on or the second state with the airflow off, stability can be maintained through mechanical locking, avoiding state changes caused by external vibration or operational errors, and improving the stability of this embodiment.

[0045] The design of the positioning part 221 and the positioning groove helps to achieve precise angle control. When the rotating body 210 switches from one state to another, it can be ensured that it accurately stops at the predetermined position, thereby ensuring that the connection or blockage operation of the through hole 211 and the air passage 310 is more precise and improving the working accuracy of this embodiment.

[0046] For the operator, the engagement between the positioning unit 221 and the first positioning groove 111 and the second positioning groove 112 is clear and stable, providing a better user experience. Each time the rotating body 210 reaches the predetermined position, the operator receives clear tactile feedback through the engagement of the positioning unit 221 with the first positioning groove 111 and the second positioning groove 112, confirming whether the current state is correct and reducing the possibility of misoperation.

[0047] In one embodiment, exemplarily, such as Figure 2 , Figure 3 As shown, the positioning part 221 is configured as a through groove, and both the first positioning groove 111 and the second positioning groove 112 are configured as straight grooves. A ball-head plunger is movably inserted into the through groove, and the ball-head plunger can be inserted into the first positioning groove 111 or the second positioning groove 112.

[0048] The ball plunger can automatically pop out or be manually inserted into the corresponding first positioning groove 111 or second positioning groove 112 when the rotating body 210 rotates to a specific position, providing clear positioning feedback to the operator. When the ball plunger enters the positioning groove, a slight "click" sound or tactile feedback will be generated under the action of the elastic element inside the ball plunger, providing the operator with a clear operation confirmation signal.

[0049] The mechanical locking mechanism between the ball plunger and the positioning groove ensures that the rotating body 210 can accurately remain in the preset working state, avoiding state drift caused by slight vibration or other external forces.

[0050] The combination of the ball plunger and the positioning groove allows users to switch working states with minimal force. When the rotating body 210 approaches the target position, the ball plunger springs out under elastic force and slides into the corresponding positioning groove, reducing the need for manual alignment, greatly simplifying the operation process, and improving ease of use.

[0051] In one embodiment, exemplarily, such as Figure 2 , Figure 6 As shown, an arc-shaped groove 222 is provided on the end body 220, and the center of the arc-shaped groove 222 is concentrically arranged with the rotation center of the rotating body 210. A limiting part 113 is provided on the base body 100, and the limiting part 113 extends into the arc-shaped groove 222.

[0052] The arc-shaped groove 222 allows the maximum rotation angle of the rotating body 210 to be limited by the limiting part 113. Since the center of the arc-shaped groove 222 is concentric with the rotation center of the rotating body 210, the limiting part 113 can set clear rotation limits at both ends of the arc-shaped groove 222, ensuring that the rotating body 210 can only rotate within a preset angle range. This facilitates precise control of the working state transitions of the rotating body 210 in this embodiment, avoiding equipment damage or functional failure caused by excessive rotation. It improves the safety of this embodiment, reduces the possibility of accidents, and ensures long-term stable operation of the equipment.

[0053] The arc-shaped groove 222 also simplifies the assembly process. During assembly or maintenance, the limiting part 113 only needs to be correctly inserted into the arc-shaped groove 222 to complete the initial positioning. In addition, if it is necessary to fine-tune the rotation range of the rotating body 210, only the length of the arc-shaped groove 222 or the position of the limiting part 113 needs to be adjusted, without the need for complex modifications to the entire structure, thus simplifying maintenance and adjustment work.

[0054] In this embodiment, if it is necessary to add more working states or adjust the angle range of existing states, this can be achieved by changing the shape or length of the arc groove 222. This allows this embodiment to be customized according to different application scenarios, increasing its versatility.

[0055] In one embodiment, exemplarily, such as Figure 2 , Figure 6 As shown, the arc-shaped groove 222 includes a first end and a second end. When the limiting part 113 is located at the first end, the rotating body 210 is in a first state; when the limiting part 113 is located at the second end, the rotating body 210 is in a second state.

[0056] The first and second ends serve as clear physical boundaries, defining two operating states of the rotating body 210. This allows the operator to clearly know the current state of the rotating body 210, further reducing the possibility of misjudgment and improving operational accuracy.

[0057] Furthermore, when using this embodiment, the operator only needs to move the limiting part 113 from one end to the other to complete the state switch. Combined with the ball-head plunger of this embodiment, the operation process is further simplified, eliminating the need for complex adjustment steps, lowering the barrier to entry, and making it particularly suitable for application scenarios requiring frequent state switching.

[0058] In one embodiment, for example, the limiting part 113 is configured as a limiting pin, the diameter of which is the same as the width of the arc-shaped groove 222. The matching design of the limiting pin and the width of the arc-shaped groove 222 ensures that the rotating body 210 can only move along a preset path. This precise guiding mechanism prevents the rotating body 210 from deviating or tilting during operation, ensuring accurate operation during state switching.

[0059] The limiting pin, with a diameter identical to the width of the arc-shaped groove 222, can fit tightly against the inner wall of the arc-shaped groove 222, providing additional support and stability. This reduces the shaking of the rotating body 210 caused by external vibration or impact during operation, thereby improving the stability of the entire system.

[0060] In one embodiment, exemplarily, such as Figure 3 As shown, the mounting part is configured as a circular groove, and the rotating body 210 is rotatably mounted within the circular groove, with the rotating body 210 fitting against the inner wall of the groove. This design, where the rotating body 210 fits against the inner wall of the circular groove, provides a good sealing effect, preventing gas leakage. Especially in dustproof blow-out switches, good sealing is one of the key factors in ensuring normal airflow and dust prevention, helping to protect the internal components of the laser processing head from dust contamination.

[0061] When the rotating body 210 is subjected to external forces, such as manual operation or airflow impact, the circular groove structure can evenly distribute these forces to the entire contact surface, avoiding the formation of stress concentration points, thereby improving the stability and reliability of the overall structure.

[0062] This embodiment also provides a laser processing head, including a laser processing component and a dustproof air blower switch as described in any of the above embodiments. The dustproof air blower switch is used to control the air knife component 300 of the laser processing head.

[0063] The laser processing head of this embodiment has the dustproof air blowing switch of any of the above embodiments, and thus has all the beneficial effects of the dustproof air blowing switch, which will not be repeated here.

[0064] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0065] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A dustproof air blowing switch for use on a laser processing head, characterized in that, include: A base (100) is provided with an air passage (310), and an installation part is provided in the air passage (310); A switch assembly (200) includes a rotating body (210) which is rotatably mounted on the mounting part; the rotating body (210) has a through hole (211) and a protrusion (212) is provided on the rotating body (210) at a position away from the through hole (211); When the rotating body (210) rotates to the first state, the protrusion (212) abuts against the contact switch assembly (130) of the air knife assembly (300) in the laser processing head, and the through hole (211) communicates with the air passage (310); when the rotating body (210) rotates to the second state, the protrusion (212) disengages from the contact switch assembly (130), and the rotating body (210) blocks the air passage (310).

2. The dustproof air blowing switch according to claim 1, characterized in that, The rotating body (210) is configured as a cylinder, and the axis of the cylinder is set to coincide with the rotation center of the rotating body (210).

3. The dustproof air blowing switch according to claim 2, characterized in that, The through hole (211) is configured as a rectangular hole, and the two short sides of the rectangular hole are located near the end of the rotating body (210).

4. The dustproof air blowing switch according to claim 1, characterized in that, One end of the rotating body (210) is provided with an end body (220), and a positioning part (221) is provided on the end body (220); The base (100) is provided with a first positioning groove (111) and a second positioning groove (112) at corresponding positions; when the rotating body (210) rotates to the first state, the positioning part (221) is fixed relative to the first positioning groove (111); When the rotating body (210) rotates to the second state, the positioning part (221) is fixed relative to the second positioning groove (112).

5. The dustproof air blowing switch according to claim 4, characterized in that, The positioning part (221) is configured as a through groove, and the first positioning groove (111) and the second positioning groove (112) are both configured as straight grooves; A ball-head plunger is movably inserted into the through groove, and the ball-head plunger can be inserted into the first positioning groove (111) or the second positioning groove (112).

6. The dustproof air blowing switch according to claim 4, characterized in that, An arc-shaped groove (222) is provided on the end body (220), and the center of the arc-shaped groove (222) is concentric with the rotation center of the rotating body (210); The seat (100) is provided with a limiting part (113), which extends into the arc-shaped groove (222).

7. The dustproof air blowing switch according to claim 6, characterized in that, The arc-shaped groove (222) includes a first end and a second end. When the limiting part (113) is located at the first end, the rotating body (210) is in the first state; when the limiting part (113) is located at the second end, the rotating body (210) is in the second state.

8. The dustproof air blowing switch according to claim 6, characterized in that, The limiting part (113) is configured as a limiting pin, and the diameter of the limiting pin is the same as the width of the arc groove (222).

9. The dustproof air blowing switch according to claim 1, characterized in that, The mounting part is configured as a circular groove, and the rotating body (210) is rotatably mounted in the circular groove, and the rotating body (210) is attached to the inner wall of the circular groove.

10. A laser processing head, characterized in that, It includes a laser processing assembly and a dustproof air-blowing switch as described in any one of claims 1 to 9, wherein the dustproof air-blowing switch is used to control the air knife assembly (300) of the laser processing head.

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