Laser cladding coaxial shielding gas nozzle

Abstract

The utility model relates to laser cladding technical field discloses laser cladding coaxial protective gas nozzle, including upper cone cylinder, the downside of upper cone cylinder is equipped with powder conical nozzle, is equipped with the first antiskid zone on the upper cone cylinder, is equipped with the second antiskid zone on the powder conical nozzle, the outside of upper cone cylinder is equipped with first frame, is screwed and is connected with first propeller on the first frame, the inside is equipped with first clamping strip, first clamping strip with first antiskid zone is opposite, the outside of powder conical nozzle is equipped with second frame, through setting antiskid zone and clamping strip respectively on the upper cone cylinder and powder conical nozzle, and through the structural design of frame and propeller, has realized the locking of nozzle assembly, thereby effectively prevented the assembly loose problem caused by the collision or vibration, due to the locking structure of nozzle assembly, can reduce the complexity when installing and disassembling nozzle in laser cladding equipment, improves work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of laser cladding technology, specifically to coaxial protective gas nozzles for laser cladding. Background Technology

[0002] Laser cladding technology falls under the category of cladding welding. Its working principle involves applying a cladding material to the surface of a substrate and then melting it using a high-energy-density or high-power laser beam, thereby welding it to the substrate to form a coating layer with metallurgical bonding properties. This technology can significantly improve the local properties of the substrate surface and is an indispensable and important technical means in workpiece processing, repair, and refurbishment. As a core component of laser cladding equipment, the laser cladding nozzle typically emits the laser beam perpendicular to the workpiece surface during processing, and the powder flow channel layout is also consistent with the laser beam emission direction.

[0003] Traditional laser cladding nozzles consist of an upper conical cylinder housing a laser and a lower conical powder nozzle, which are connected and installed via a threaded connection. When assembling the nozzle into a laser cladding machine to perform workpiece processing, the following problem arises: because the upper conical cylinder and the lower conical powder nozzle use a detachable threaded connection, during use, if the nozzle is subjected to accidental impact or vibration, the threaded connection is prone to self-spinning, leading to loosening of the assembly. Utility Model Content

[0004] The purpose of this invention is to provide a coaxial protective gas nozzle for laser cladding to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a laser cladding coaxial protective gas nozzle, comprising an upper conical body, a powder cone nozzle disposed on the lower side of the upper conical body, a first anti-slip strip disposed on the upper conical body, and a second anti-slip strip disposed on the powder cone nozzle;

[0006] The outer side of the upper conical cylinder is fitted with a first frame, and a first push rod is threaded onto the first frame. The inner end of the first push rod is provided with a first clamping strip, which abuts against the first anti-slip strip.

[0007] A second frame is fitted on the outside of the powder cone nozzle. A second push rod is threaded onto the second frame. A second clamping strip is provided at the inner end of the second push rod. The second clamping strip abuts against the second anti-slip strip.

[0008] The first frame and the second frame are fixedly connected to achieve locking between the upper conical cylinder and the powder conical nozzle.

[0009] Preferably, the central axes of the upper conical cylinder, the powder conical nozzle, the first frame, and the first push rod coincide with each other.

[0010] Preferably, both the outer ends of the first push rod and the second push rod are provided with auxiliary rotating plates.

[0011] Preferably, the number of the first clamping strips is 2, and they are respectively disposed on the two non-adjacent sides of the upper conical cylinder, and the number of the second clamping strips is 2, and they are respectively disposed on the two non-adjacent sides of the powder conical nozzle.

[0012] Preferably, the inner ends of the two first clamping strips and the inner ends of the two second clamping strips are provided with arc-shaped clamping grooves, and the arc-shaped clamping grooves match the shape of the corresponding upper conical cylinder or the powder conical nozzle.

[0013] Preferably, the outer ends of the first clamping strip and the second clamping strip are provided with guide tubes, and the guide tubes are slidably connected to the outer frames of the corresponding first frame or second frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are: improved connection stability. By setting anti-slip strips and clamping strips on the upper conical cylinder and the powder conical nozzle respectively, and by using the structural design of the frame and the push rod, the nozzle assembly is locked, thereby effectively preventing assembly loosening caused by collision or vibration.

[0015] Simplified operation: The locking structure of the nozzle assembly reduces the complexity of installing and removing nozzles in laser cladding equipment, thus improving work efficiency.

[0016] Enhanced nozzle durability: The design of anti-slip strips and clamps reduces wear caused by frequent disassembly and reassembly, extending nozzle lifespan.

[0017] Improving machining accuracy: A stable nozzle connection ensures precise alignment of the laser beam and powder flow channel, thereby enhancing the precision and quality of workpiece surface machining.

[0018] The optimized protective gas flow and the coaxial protective gas nozzle design allow for better control of the protective gas flow, reducing oxidation and other defects that may occur during the cladding process and improving the quality of the cladding layer.

[0019] With its compact structure, the upper conical cylinder, powder conical nozzle, frame, and propulsion rod are designed as a coaxial structure, making the entire nozzle assembly more compact and facilitating the overall layout and miniaturization of the laser cladding equipment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0021] Figure 2This is a schematic diagram of the present invention.

[0022] In the figure: 1. Upper conical cylinder; 2. Powder conical nozzle; 3. First anti-slip strip; 4. Second anti-slip strip; 5. First frame; 6. First push rod; 7. First clamping bar; 8. Second frame; 9. Second push rod; 10. Second clamping bar; 11. Auxiliary rotating plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-2 This utility model provides a technical solution: a coaxial protective gas nozzle for laser cladding, which includes an upper conical body 1, a powder cone nozzle 2 disposed on the lower side of the upper conical body 1, a first anti-slip strip 3 disposed on the upper conical body 1, and a second anti-slip strip 4 disposed on the powder cone nozzle 2; this design not only ensures the stability and durability of the nozzle, but also further enhances the safety of the nozzle during operation by setting the anti-slip strip.

[0025] A first frame 5 is fitted on the outer side of the upper cone body 1. A first push rod 6 is screwed onto the first frame 5. The inner end of the first push rod 6 is provided with a first clamping strip 7. The first clamping strip 7 is tightly abutted against the first anti-slip strip 3 to ensure the stability of the nozzle assembly when subjected to external force.

[0026] A second frame 8 is fitted on the outside of the powder cone nozzle 2. A second push rod 9 is screwed onto the second frame 8. A second clamping strip 10 is provided at the inner end of the second push rod 9. The second clamping strip 10 is tightly abutted against the second anti-slip strip 4. This structural design enables the nozzle assembly to maintain a good alignment during operation and avoids misalignment caused by vibration or collision.

[0027] The first frame 5 and the second frame 8 are connected by a fixed connection. This connection not only ensures the integrity of the nozzle assembly, but also effectively withstands various stresses during operation in practical applications, ensuring the long-term stable operation of the nozzle assembly.

[0028] By installing anti-slip strips and clamping bars on the upper conical cylinder 1 and the powder conical nozzle 2 respectively, and through the structural design of the frame and push rod, the nozzle assembly is locked, effectively preventing assembly loosening caused by collisions or vibrations. This design not only improves the reliability of the nozzle assembly, but also significantly reduces maintenance costs and extends the service life of the nozzle in actual use, providing users with a more stable and efficient laser cladding operation experience.

[0029] The locking structure of the nozzle assembly reduces the complexity of installing and removing nozzles in laser cladding equipment, thus improving work efficiency.

[0030] Specifically, the central axes of the upper conical cylinder 1, the powder conical nozzle 2, the first frame 5, and the first push rod 6 are coincident, ensuring the precise alignment of the nozzle assembly.

[0031] Specifically, the outer ends of the first push rod 6 and the second push rod 9 are provided with auxiliary rotating plates 11. These auxiliary rotating plates 11 can facilitate the operator to rotate the push rods to adjust the position of the nozzle.

[0032] Specifically, there are two first clamping bars 7, which are respectively located on the two non-adjacent sides of the upper conical cylinder 1, and there are also two second clamping bars 10, which are respectively located on the two non-adjacent sides of the powder conical nozzle 2. This design can apply clamping force evenly and ensure the stability of the nozzle assembly.

[0033] Specifically, the inner ends of the two first clamping bars 7 and the inner ends of the two second clamping bars 10 are provided with arc-shaped clamping grooves. These arc-shaped clamping grooves match the shape of the corresponding upper conical body 1 or powder conical nozzle 2, so as to tightly fix the nozzle assembly and prevent it from shifting during use.

[0034] Specifically, the outer ends of the first clamping strip 7 and the second clamping strip 10 are provided with guide tubes, and the guide tubes are slidably connected to the outer frames of the corresponding first frame 5 or second frame 8.

[0035] Working principle: When this utility model is working, the upper conical cylinder 1 and the powder conical nozzle 2 are the core parts of the nozzle assembly, which are responsible for guiding the laser and conveying the powder material, respectively.

[0036] A powder cone nozzle 2 is provided on the lower side of the upper conical cylinder 1 to ensure that the powder material can be accurately delivered to the laser action area.

[0037] The upper conical body 1 and the powder conical nozzle 2 are respectively provided with a first anti-slip strip 3 and a second anti-slip strip 4. These anti-slip strips can increase the friction with the clamping strip and prevent the nozzle assembly from sliding during use.

[0038] The first frame 5 and the second frame 8 are respectively fitted onto the outer sides of the upper conical cylinder 1 and the powder conical nozzle 2, and are threadedly connected to the first push rod 6 and the second push rod 9. These push rods can be used to adjust the position of the nozzle assembly to adapt to different working conditions.

[0039] The first clamping strip 7 and the second clamping strip 10 abut against the first anti-slip strip 3 and the second anti-slip strip 4 respectively. Through the structural design of the frame and the push rod, the nozzle assembly is locked, effectively preventing assembly loosening caused by collision or vibration.

[0040] The first frame 5 and the second frame 8 are fixedly connected to ensure the stability of the entire nozzle assembly.

[0041] The outer ends of the first push rod 6 and the second push rod 9 are provided with auxiliary rotating plates 11 to facilitate adjustment and locking by the operator.

[0042] The number of first clamping bars 7 and second clamping bars 10 is two, respectively, and they are located on the two non-adjacent sides of the upper conical cylinder 1 and the powder conical nozzle 2 to provide uniform clamping force.

[0043] The arc-shaped clamping groove is designed at the inner end of the first clamping bar 7 and the second clamping bar 10, which matches the shape of the corresponding upper conical body 1 or powder conical nozzle 2, further ensuring the stability and accuracy of the nozzle assembly.

[0044] Through the above design, the coaxial protective gas nozzle for laser cladding can ensure the stable delivery of powder materials and the accurate focusing of the laser during the laser cladding process, while reducing the complexity of installation and disassembly and improving work efficiency.

[0045] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coaxial protective gas nozzle for laser cladding, characterized in that: It includes an upper conical cylinder (1), a powder cone nozzle (2) is provided on the lower side of the upper conical cylinder (1), a first anti-slip strip (3) is provided on the upper conical cylinder (1), and a second anti-slip strip (4) is provided on the powder cone nozzle (2). The upper conical cylinder (1) is fitted with a first frame (5) on its outer side. A first push rod (6) is threaded onto the first frame (5). The inner end of the first push rod (6) is provided with a first clamping strip (7). The first clamping strip (7) abuts against the first anti-slip strip (3). A second frame (8) is fitted on the outside of the powder cone nozzle (2). A second push rod (9) is threaded onto the second frame (8). A second clamping strip (10) is provided at the inner end of the second push rod (9). The second clamping strip (10) abuts against the second anti-slip strip (4). The first frame (5) and the second frame (8) are fixedly connected.

2. The laser cladding coaxial protective gas nozzle according to claim 1, characterized in that: The central axes of the upper conical cylinder (1), the powder conical nozzle (2), the first frame (5), and the first push rod (6) coincide with each other.

3. The laser cladding coaxial protective gas nozzle according to claim 1, characterized in that: The outer ends of the first push rod (6) and the second push rod (9) are provided with auxiliary rotating plates (11).

4. The laser cladding coaxial protective gas nozzle according to claim 1, characterized in that: The number of the first clamping strips (7) is 2, and they are respectively located on the two non-adjacent sides of the upper conical cylinder (1). The number of the second clamping strips (10) is 2, and they are respectively located on the two non-adjacent sides of the powder conical nozzle (2).

5. The laser cladding coaxial protective gas nozzle according to claim 4, characterized in that: The inner ends of the two first clamping strips (7) and the inner ends of the two second clamping strips (10) are provided with arc-shaped clamping grooves, which match the shape of the corresponding upper conical cylinder (1) or the powder conical nozzle (2).

6. The laser cladding coaxial protective gas nozzle according to claim 1, characterized in that: The outer ends of the first clamping strip (7) and the second clamping strip (10) are provided with guide tubes, and the guide tubes are slidably connected to the outer frames of the corresponding first frame (5) or second frame (8).

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