Coaxial laser cladding nozzle

Abstract

The utility model relates to the technical field of laser cladding nozzles, and discloses a coaxial laser cladding nozzle which comprises a connecting ring, a clamping mechanism is arranged at the upper end of the connecting ring and comprises a connecting block, and a cavity is formed in the lower end of the side, close to the center of the connecting ring, of the inner wall of the connecting block. The sides, away from the center of the connecting ring, of the two cavities are fixedly connected with damping rods, the outer walls of the two damping rods are sleeved with reset springs, the sides, close to the center of the connecting ring, of the two damping rods are fixedly connected with protruding blocks, and the sides, away from the center of the connecting ring, of the upper ends of the two protruding blocks are fixedly connected with connecting rods. According to the utility model, the mounting block, the push rod and the connecting rod are pulled to move outwards in a linkage manner, so that the convex block is separated from the groove, the disassembly of the connecting block and the connecting ring is simplified, a traditional fastener is not needed, and during mounting, the connecting ring is inserted into the connecting block, and the convex block rebounds under the action of spring force and is clamped with the groove, so that the assembly is quickly completed.

Description

Technical Field

[0001] This utility model relates to the field of laser cladding nozzle technology, and in particular to a coaxial laser cladding nozzle. Background Technology

[0002] A coaxial laser cladding nozzle is a component of a device used in laser cladding technology. Laser cladding is a material surface modification technology that uses a high-energy laser beam to melt powder or filament materials and deposit them onto the surface of a substrate, forming a coating with specific properties. The design feature of a coaxial nozzle is that the laser beam and the powder delivery channel are on the same axis, meaning that the powder is ejected from the center of the nozzle, while the laser beam passes through a coaxial channel inside the nozzle.

[0003] Traditional coaxial laser cladding nozzles typically involve welding the nozzle and connecting ring directly to the pipe or installing and fixing them with fasteners such as bolts. Over time, the pipe is prone to aging, and welding increases disassembly time and makes replacement inconvenient.

[0004] Therefore, those skilled in the art have provided a coaxial laser cladding nozzle to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a coaxial laser cladding nozzle. Pulling the mounting block causes the push rod and connecting rod to move outward in tandem, disengaging the protrusion from the groove. This simplifies the disassembly of the connecting block and the connecting ring, eliminating the need for traditional fasteners. During installation, the connecting ring is inserted into the connecting block, and the protrusion rebounds under spring force, engaging with the groove for quick assembly.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A coaxial laser cladding nozzle includes a connecting ring. A locking mechanism is provided at the upper end of the connecting ring. The locking mechanism includes a connecting block. A cavity is formed at the lower end of the inner wall of the connecting block near the center of the connecting ring. Damping rods are fixedly connected to the sides of the two cavities away from the center of the connecting ring. Return springs are sleeved on the outer walls of the two damping rods. Protrusions are fixedly connected to the sides of the two damping rods near the center of the connecting ring. Connecting rods are fixedly connected to the upper ends of the two protrusions away from the center of the connecting ring. Push rods are fixedly connected to the upper ends of the two connecting rods away from the center of the connecting ring. Mounting blocks are fixedly connected to the sides of the two push rods away from the center of the connecting ring. Sliding blocks are fixedly connected to both ends of the sides of the upper ends of the two cavities away from the center of the connecting ring. Grooves are formed on both sides of the upper end of the connecting ring.

[0008] With the above technical solution, pulling the mounting block causes the push rod and connecting rod to move outward, moving the protrusion away from the groove and disengaging it. This facilitates the disassembly of the connecting block and connecting ring, making the disassembly of the connecting block and connecting ring quick and easy, eliminating the need for disassembling traditional fasteners such as bolts and screws. During installation, the connecting ring is inserted into the connecting block, and the protrusion is squeezed and retracts to both sides until the connecting ring is fully inserted into the connecting block. Under the elastic force of the return spring, the protrusion and groove re-engage.

[0009] Furthermore, a nozzle is fixedly connected to the lower end of the connecting ring, dust channels are evenly opened on the inner wall of the nozzle, and dust connecting pipes are evenly fixedly connected to the outer wall of the nozzle.

[0010] The above technical solution uses a dust channel to transport powder materials. A dust connection pipe is used to transport the powder materials to the nozzle.

[0011] Furthermore, two cooling chambers are formed on the inner wall of the nozzle, and two cooling pipes are connected through the rear end of one side of the nozzle.

[0012] Through the above technical solution, the cooling pipe is used to transport the cooling medium to cool the nozzle and prevent the material from overheating during the cladding process.

[0013] Furthermore, laser channels are provided in the middle of the connecting block, the connecting ring, and the inner wall of the nozzle;

[0014] The laser channel design, as described above, helps to achieve uniform heating of powder materials, thereby improving the quality of the cladding layer.

[0015] Furthermore, both protrusions engage with the groove, and the two protrusions slide on the inner wall of the cavity;

[0016] Through the above technical solution, the interlocking structure provides a strong connection force, making the connection between components more secure and less prone to loosening due to vibration or external force.

[0017] Furthermore, both connecting rods and push rods slide on the inner wall of the cavity;

[0018] The above technical solutions reduce the vibration of components during operation, making the overall structure more compact and saving equipment space.

[0019] Furthermore, all of the aforementioned sliding blocks slide on the inner wall of the groove, and the connecting ring is located inside the connecting block;

[0020] Through the above technical solution, multiple sliding blocks provide multi-point contact, which increases the stability of the system and reduces vibration during operation.

[0021] Furthermore, both cooling pipes extend through the nozzle into the cooling chamber;

[0022] The above technical solutions can provide a uniform cooling effect, avoid localized overheating inside the nozzle, and thus improve the stability and service life of the nozzle.

[0023] This utility model has the following beneficial effects:

[0024] 1. This utility model proposes a coaxial laser cladding nozzle. Pulling the mounting block causes the push rod and connecting rod to move outward, moving the protrusion away from the groove and disengaging it. This facilitates the disassembly of the connecting block and connecting ring, making the disassembly of the connecting block and connecting ring quick and easy, eliminating the need for disassembling traditional fasteners such as bolts and screws. During installation, the connecting ring is inserted into the connecting block, and the protrusion is squeezed and retracts to both sides until the connecting ring is fully inserted into the connecting block. Under the elastic force of the return spring, the protrusion and groove re-engage, improving efficiency and ensuring the stability of the connection. Attached Figure Description

[0025] Figure 1 This is an isometric view of a coaxial laser cladding nozzle proposed in this utility model;

[0026] Figure 2 This is a front sectional view of a coaxial laser cladding nozzle proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of a coaxial laser cladding nozzle proposed in this utility model;

[0028] Figure 4 This is a top cross-sectional view of a coaxial laser cladding nozzle proposed in this utility model;

[0029] Figure 5 An exploded view of a coaxial laser cladding nozzle proposed in this utility model;

[0030] Figure 6 for Figure 3 Enlarged view of point A in the middle.

[0031] Legend:

[0032] 1. Engaging mechanism; 101. Cavity; 102. Damping rod; 103. Return spring; 104. Protrusion; 105. Connecting rod; 106. Push rod; 107. Sliding block; 108. Slide groove; 109. Groove; 110. Mounting block; 111. Connecting block;

[0033] 2. Connecting ring; 3. Nozzle; 4. Dust channel; 5. Dust connecting pipe; 6. Cooling chamber; 7. Cooling pipe; 8. Laser channel. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Reference Figure 1 , Figure 2 and Figure 3 This utility model provides a specific embodiment: a coaxial laser cladding nozzle, including a connecting ring 2, with a locking mechanism 1 at the upper end of the connecting ring 2. The locking mechanism 1 includes a connecting block 111. A cavity 101 is formed at the lower end of the inner wall of the connecting block 111 near the center of the connecting ring 2. Damping rods 102 are fixedly connected to the sides of the two cavities 101 away from the center of the connecting ring 2. A return spring 103 is sleeved on the outer wall of each of the two damping rods 102. A protrusion 104 is fixedly connected to the side of each of the two damping rods 102 near the center of the connecting ring 2. Each of the two protrusions 104 has a connecting rod 105 fixedly connected to the side away from the center of the connecting ring 2 at the top end. Each of the two connecting rods 105 has a push rod 106 fixedly connected to the side away from the center of the connecting ring 2 at the top end. Each of the two push rods 106 has a mounting block 110 fixedly connected to the side away from the center of the connecting ring 2 at the top end. Each of the two push rods 106 has a sliding block 107 fixedly connected to both ends near the center of the connecting ring 2 at the top end. Each of the two cavities 101 has a groove 108 at both ends near the center of the connecting ring 2 at the top end. Each of the two sides of the upper end of the connecting ring 2 has a groove 109.

[0036] Pulling the mounting block 110 causes the push rod 106 and connecting rod 105 to move outward, moving the protrusion 104 away from the groove 109 and disengaging it. This facilitates the disassembly of the connecting block 111 and the connecting ring 2, making the disassembly of the connecting block 111 and the connecting ring 2 quick and easy, eliminating the need for disassembling traditional fasteners such as bolts and screws. During installation, the connecting ring 2 is inserted into the connecting block 111, and the protrusion 104 is squeezed and retracts to both sides until the connecting ring 2 is fully inserted into the connecting block 111. Under the elastic force of the return spring 103, the protrusion 104 re-engages with the groove 109.

[0037] Reference Figure 4 , Figure 5 and Figure 6A nozzle 3 is fixedly connected to the lower end of the connecting ring 2. Dust channels 4 are evenly distributed on the inner wall of the nozzle 3, and dust connecting pipes 5 are evenly fixedly connected to the outer wall of the nozzle 3. The dust channels 4 are used to transport powder materials. The dust connecting pipes 5 are used to transport powder materials to the nozzle 3. Two cooling chambers 6 are opened on the inner wall of the nozzle 3. Two cooling pipes 7 are connected through the rear end of one side of the nozzle 3. The cooling pipes 7 are used to transport cooling medium to cool the nozzle 3 and prevent the material from overheating during the cladding process. Laser channels 8 are opened in the middle of the connecting block 111, the connecting ring 2, and the inner wall of the nozzle 3.

[0038] The design of laser channel 8 helps to achieve uniform heating of powder materials, thereby improving the quality of the cladding layer. Both protrusions 104 engage with grooves 109 and slide on the inner wall of cavity 101. The engaging structure provides strong connection force, making the connection between components more secure and less prone to loosening due to vibration or external force. Both connecting rods 105 and push rods 106 slide on the inner wall of cavity 101, reducing vibration of components during operation, making the overall structure more compact and saving equipment space. Multiple sliding blocks 107 slide on the inner wall of groove 108. Connecting ring 2 is located inside connecting block 111. Multiple sliding blocks 107 provide multi-point contact, increasing system stability and reducing vibration during operation. Both cooling pipes 7 penetrate from nozzle 3 to the interior of cooling chamber 6, providing uniform cooling effect and avoiding local overheating inside nozzle 3, thereby improving the stability and service life of nozzle 3.

[0039] Working principle: The dust channel 4 is used to transport powder materials, the dust connecting pipe 5 is used to transport powder materials to the nozzle 3, and the cooling pipe 7 is used to transport cooling medium to cool the nozzle 3 and prevent the material from overheating during the cladding process. Pulling the mounting block 110 causes the push rod 106 and the connecting rod 105 to move outward, driving the protrusion 104 away from the groove 109 and disengaging it, making it easy to disassemble the connecting block 111 and the connecting ring 2. This makes the disassembly of the connecting block 111 and the connecting ring 2 quick and easy, eliminating the disassembly steps of traditional fasteners such as bolts and screws. During installation, the connecting ring 2 is inserted into the connecting block 111, and the protrusion 104 is squeezed and retracts to both sides until the connecting ring 2 is completely inserted into the connecting block 111. Under the elastic force of the return spring 103, the protrusion 104 re-engages with the groove 109.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A coaxial laser cladding nozzle, comprising a connecting ring (2), characterized in that: The upper end of the connecting ring (2) is provided with a locking mechanism (1); The engaging mechanism (1) includes a connecting block (111). A cavity (101) is formed at the lower end of the inner wall of the connecting block (111) near the center of the connecting ring (2). Damping rods (102) are fixedly connected to the sides of the two cavities (101) away from the center of the connecting ring (2). Return springs (103) are sleeved on the outer walls of the two damping rods (102). Protrusions (104) are fixedly connected to the sides of the two damping rods (102) near the center of the connecting ring (2). The upper ends of the two protrusions (104) are fixedly connected to the sides away from the center of the connecting ring (2). A connecting rod (105) is connected to the two connecting rods (105). Push rods (106) are fixedly connected to the upper ends of the two push rods (106) on the side away from the center of the connecting ring (2). Mounting blocks (110) are fixedly connected to the upper ends of the two push rods (106) on the side away from the center of the connecting ring (2). Sliding blocks (107) are fixedly connected to the two ends of the upper ends of the two cavities (101) on the side away from the center of the connecting ring (2). Grooves (108) are opened at both ends of the upper ends of the two cavities (101) on the side away from the center of the connecting ring (2). Grooves (109) are opened on both sides of the upper end of the connecting ring (2).

2. The coaxial laser cladding nozzle according to claim 1, characterized in that: The lower end of the connecting ring (2) is fixedly connected to a nozzle (3), and the inner wall of the nozzle (3) is uniformly provided with dust channels (4), and the outer wall of the nozzle (3) is uniformly fixedly connected with a dust connecting pipe (5).

3. The coaxial laser cladding nozzle according to claim 2, characterized in that: The nozzle (3) has two cooling chambers (6) on its inner wall, and two cooling pipes (7) are connected to the rear end of one side of the nozzle (3).

4. The coaxial laser cladding nozzle according to claim 1, characterized in that: Laser channels (8) are provided in the middle of the inner walls of the connecting block (111), the connecting ring (2), and the nozzle (3).

5. A coaxial laser cladding nozzle according to claim 1, characterized in that: Both of the protrusions (104) engage with the groove (109) and slide on the inner wall of the cavity (101).

6. A coaxial laser cladding nozzle according to claim 1, characterized in that: Both connecting rods (105) and push rods (106) slide on the inner wall of the cavity (101).

7. A coaxial laser cladding nozzle according to claim 1, characterized in that: Multiple sliding blocks (107) slide on the inner wall of the groove (108), and the connecting ring (2) is located inside the connecting block (111).

8. A coaxial laser cladding nozzle according to claim 3, characterized in that: Both cooling pipes (7) extend through the nozzle (3) into the cooling chamber (6).

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