Laser cladding nozzle

Abstract

The utility model discloses a laser cladding nozzle which comprises an upper conical cylinder body and a conical powder nozzle body, the conical powder nozzle body is connected with the upper conical cylinder body through threads, the outer wall of the upper conical cylinder body is sleeved with a locking ring, and an assembly seat is fixed on the side wall of the conical powder nozzle body; by means of the locking ring, the assembling base, the locking block, the guide rod and the spring, the locking block is fixed in the assembling base in a sliding mode, during assembling, the inclined face of the end of the locking block and the locking ring make contact with each other and extrude and push the locking block to move to one side for avoiding, and after the locking block is screwed to a proper position, the locking block is fixed to the assembling base in a sliding mode. The spring in the compressed state releases the elastic force to push the locking block to slide in the assembly seat, so that the locking groove of the locking block is clamped on the locking ring, the assembly, locking and limiting are realized, and the self-rotation and loosening are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser cladding nozzles, and in particular relates to a laser cladding nozzle. Background Art

[0002] Laser cladding is a cladding butt welding technology that adds cladding material to the surface of the substrate and uses a high-energy density / high-power laser beam to melt / weld the material to the substrate, thereby forming a covering layer with true metallurgical bonding on the surface of the substrate, which can increase local value for the substrate and is an important means of workpiece processing, repair, and renovation. The laser cladding nozzle is the main structure of the laser cladding equipment. When the laser cladding nozzle processes the workpiece surface, the emission direction of the laser beam is usually perpendicular to the workpiece surface, and the powder flow channel is also set corresponding to the emission direction of the laser beam.

[0003] The existing laser cladding nozzle is composed of an upper cone cylinder equipped with a laser and a lower cone powder nozzle, which are installed by screwing and assembled in the laser cladding equipment to realize workpiece processing. However, there are the following defects:

[0004] (1) During the use of the existing laser cladding nozzle, since the upper cone cylinder and the powder cone nozzle are detachably installed by screwing, when the nozzle is accidentally touched or vibrated during operation, the threaded connection spins, resulting in the problem of loose assembly. For this reason, we propose a laser cladding nozzle. Utility Model Content

[0005] The utility model aims to provide a laser cladding nozzle to solve the problem that the laser cladding nozzle proposed in the above background technology is prone to accidental collision or vibration and spin when used in a laser machine, resulting in loose nozzle assembly.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a laser cladding nozzle, comprising an upper cone cylinder and a powder cone nozzle body, the powder cone nozzle body and the upper cone cylinder are connected by threads, the outer wall of the upper cone cylinder is sleeved with a locking ring, the side wall of the powder cone nozzle body is fixed with an assembly seat, the inner side of the assembly seat is connected with a locking block by sliding, the bottom end surface of the locking block is provided with a guide hole, the inner side of the guide hole is penetrated by a guide rod, the guide rod is fixed to the inner wall of the assembly seat, the outer wall of one end of the guide rod is sleeved with a spring, the side wall of the locking block is provided with a locking groove, and one side of the locking ring is placed on the inner side of the locking groove.

[0007] Preferably, the cross section of the locking ring is a circular structure, and the central axes of the locking ring, the upper cone cylinder and the powder cone nozzle body coincide with each other.

[0008] Preferably, the locking ring and the upper cone cylinder are commonly connected with a rib plate, and the longitudinal section of the rib plate is a triangular structure.

[0009] Preferably, there are four ribs, and the four ribs overlap with each other about the central axis of the locking ring.

[0010] Preferably, a spherical groove is formed on the end surface of the locking block, and a ball is embedded in the spherical groove.

[0011] Preferably, a cover plate is provided at the port of the assembly seat, and the cover plate is fixed on the side wall of the locking block.

[0012] Preferably, a pull ring is fixed to the side wall of the locking block, and the longitudinal section of the pull ring is an arc-shaped structure.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) Through the designed locking ring, assembly seat, locking block, guide rod and spring, the locking ring is sleeved on the upper cone cylinder, and the locking block is slidably installed on the powder cone nozzle body through the assembly seat, and the guide rod passes through the guide hole of the locking block, and the locking block is slidably fixed in the assembly seat. When the utility model is assembled, the inclined surface at the end of the locking block and the locking ring contact and squeeze each other, pushing the locking block to move to one side to avoid it. After it is screwed to a suitable position, the spring in a compressed state releases its elastic force, pushing the locking block to slide in the assembly seat, so that the locking groove of the locking block is stuck on the locking ring, thereby realizing the assembly locking limit of the utility model and preventing it from loosening by self-spinning. The designed rib plate is used to reinforce the locking ring assembly, and the designed ball bearing plays a lubricating role, reducing the friction resistance between the inclined surface at the end of the locking block and the locking ring during squeezing. The designed cover plate is installed on the locking block and moves synchronously with the locking block, so that during the locking process, the cover plate blocks the port of the assembly seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the front view of the utility model;

[0016] Figure 2 For this utility model Figure 1 A in the enlarged view;

[0017] Figure 3 This is a partial structural sectional view of the utility model at A;

[0018] Figure 4 This is a top view of the assembly of the assembly seat, the cover plate and the locking block of the utility model;

[0019] Figure 5 This is a top view of the assembly of the locking ring and the rib plate of the utility model;

[0020] In the figure: 1. upper cone cylinder; 2. rib plate; 3. locking ring; 4. powder cone nozzle body; 5. locking groove; 6. assembly seat; 7. cover plate; 8. pull ring; 9. locking block; 10. ball; 11. guide hole; 12. guide rod; 13. spring. DETAILED DESCRIPTION

[0021] 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 in 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.

[0022] Example

[0023] See also Figures 1 to 5 The utility model provides a technical solution: a laser cladding nozzle, comprising an upper cone cylinder 1 and a powder cone nozzle body 4, the powder cone nozzle body 4 and the upper cone cylinder 1 are connected by threads, the outer wall of the upper cone cylinder 1 is sleeved with a locking ring 3, the side wall of the powder cone nozzle body 4 is fixed with an assembly seat 6, the inner side of the assembly seat 6 is connected with a locking block 9 by sliding, the bottom end surface of the locking block 9 is provided with a guide hole 11, the inner side of the guide hole 11 passes through a guide rod 12, the guide rod 12 is fixed to the inner wall of the assembly seat 6, the outer wall of one end of the guide rod 12 is sleeved with a spring 13, the side wall of the locking block 9 is provided with a locking groove 5, one side of the locking ring 3 is placed on the inner side of the locking groove 5, the cross section of the locking ring 3 is a circular structure, through the designed locking ring 3, assembly seat 6, locking block 9, guide rod 12 and spring 13, the locking ring 3 is sleeved on the upper cone cylinder 1, and the locking block 9 is slidably installed on the assembly seat 6 The locking ring 3 is a kind of spring which is used to lock the locking ring 3 and the locking ring 3 is a kind of spring which is used to lock the locking ring 3. The spring 13 is a kind of spring which is used to lock the locking ring 3 and the locking ring 3 is a kind of spring which is used to lock the locking ring 3.

[0024] In this embodiment, preferably, a spherical groove is formed on the end face of the locking block 9, and a ball 10 is embedded in the spherical groove. The designed ball 10 plays a lubricating role, thereby reducing the influence of friction resistance between the end inclined surface of the locking block 9 and the locking ring 3 during extrusion. A cover plate 7 is provided at the port of the assembly seat 6. The cover plate 7 is designed and installed on the locking block 9, and moves synchronously with the locking block 9, so that during the locking process, the cover plate 7 blocks the port of the assembly seat 6. The cover plate 7 is fixed on the side wall of the locking block 9, and a pull ring 8 is fixed on the side wall of the locking block 9. The designed pull ring 8 makes it convenient for the hand to pull the locking block 9, and the longitudinal section of the pull ring 8 is an arc-shaped structure.

[0025] The working principle and use process of the utility model: the utility model slides the locking block 9 on the powder cone nozzle body 4 through the assembly seat 6, and the guide rod 12 passes through the guide hole 11 of the locking block 9, and slides the locking block 9 to be fixed in the assembly seat 6. When the utility model is assembled, the inclined surface at the end of the locking block 9 and the locking ring 3 contact and squeeze each other, pushing the locking block 9 to move to one side to avoid it. After it is screwed to a suitable position, the spring 13 in a compressed state releases its elastic force, pushing the locking block 9 to slide in the assembly seat 6, so that the locking groove 5 of the locking block 9 is stuck on the locking ring 3, realizing the assembly locking limit of the utility model and preventing it from loosening by self-spinning. When disassembling the utility model, it is only necessary to pull the locking block 9 to stop locking the locking ring 3, and then screw the threaded connection of the utility model to disassemble it.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser cladding nozzle, comprising an upper cone cylinder (1) and a powder cone nozzle body (4), wherein the powder cone nozzle body (4) and the upper cone cylinder (1) are connected by threads, characterized in that: The outer wall of the upper cone cylinder (1) is sleeved with a locking ring (3); the side wall of the powder cone nozzle body (4) is fixed with an assembly seat (6); the inner side of the assembly seat (6) is connected with a locking block (9) by sliding; the bottom surface of the locking block (9) is provided with a guide hole (11); the inner side of the guide hole (11) is penetrated by a guide rod (12); the guide rod (12) is fixed on the inner wall of the assembly seat (6); the outer wall of one end of the guide rod (12) is sleeved with a spring (13); the side wall of the locking block (9) is provided with a locking groove (5); one side of the locking ring (3) is placed on the inner side of the locking groove (5).

2. A laser cladding nozzle according to claim 1, characterized in that: The cross section of the locking ring (3) is a circular structure, and the central axes of the locking ring (3), the upper cone cylinder (1) and the powder cone nozzle body (4) coincide with each other.

3. The laser cladding nozzle according to claim 1, characterized in that: The locking ring (3) and the upper cone cylinder (1) are connected together with a rib plate (2), and the longitudinal section of the rib plate (2) is a triangular structure.

4. A laser cladding nozzle according to claim 3, characterized in that: There are four ribs (2), and the four ribs (2) coincide with each other with respect to the central axis of the locking ring (3).

5. The laser cladding nozzle according to claim 1, characterized in that: The end surface of the locking block (9) is provided with a spherical groove, and a ball (10) is embedded in the spherical groove.

6. The laser cladding nozzle according to claim 1, characterized in that: A cover plate (7) is provided at the port of the assembly seat (6), and the cover plate (7) is fixed on the side wall of the locking block (9).

7. The laser cladding nozzle according to claim 1, characterized in that: A pull ring (8) is fixed to the side wall of the locking block (9), and the longitudinal section of the pull ring (8) is an arc-shaped structure.

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