A kind of anti-deformation and cooling tool for laser cladding of thin-walled tubular parts

Abstract

The utility model relates to the field of aircraft component repair technology, concretely is a kind of anti-deformation and cooling tool for laser cladding of thin-walled pipe parts, including anti-deformation support end, the clamping end of the rear side of anti-deformation support end, the threaded fastening end of the front side of anti-deformation support end, several heat dissipation holes parallel to tool axis and through entire tool, threaded fastening end is threadedly matched with workpiece fastening ring.The utility model provides a kind of anti-deformation and cooling tool for laser cladding of thin-walled pipe parts, cooperate with thin-walled pipe by the anti-deformation support end of setting, can play the supporting action when thin-walled pipe piece deforms, effectively reduce the deformation of thin-walled pipe piece, by the heat dissipation hole of setting, further promote heat dissipation, reduce workpiece temperature, can effectively prevent thin-walled pipe piece overheating.

Description

Technical Field

[0001] This utility model relates to the field of aircraft component repair technology, specifically to a deformation-preventing and cooling fixture for laser cladding of thin-walled tubular parts. Background Technology

[0002] Thin-walled tubing is widely used in various systems of aerospace equipment. Damage to aircraft components is inevitable under harsh service conditions, making repair and remanufacturing of damaged components a highly competitive option during equipment maintenance. Laser cladding technology, characterized by high repair efficiency, stable quality, and excellent performance, has become an important maintenance method for aerospace equipment. Due to the high energy density of lasers, the cladding process can rapidly melt powder and substrate, while the relatively small molten pool allows for rapid solidification.

[0003] However, the rapid heating and cooling process leads to high stress within the cladding layer. Due to the thin wall of the fitting, this high internal stress causes deformation. Simultaneously, as the fitting undergoes cladding, heat continuously accumulates. The initial weld bead can solidify quickly, but subsequent weld beads experience reduced heat dissipation in the cladding area due to heat buildup, resulting in overheating. This can lead to weld pool collapse or severe oxidation, significantly impacting the surface quality of the cladding layer. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model proposes a deformation-preventing and cooling fixture for laser cladding of thin-walled tubular parts.

[0005] The technical problem to be solved by this utility model is achieved by the following technical solution:

[0006] A deformation-resistant and cooling fixture for laser cladding of thin-walled tubular parts includes a deformation-resistant support end, a clamping end located behind the deformation-resistant support end, a threaded fastening end located in front of the deformation-resistant support end, and a plurality of heat dissipation holes parallel to the fixture axis and penetrating the entire fixture. A workpiece fastening ring is threadedly fitted onto the threaded fastening end.

[0007] As a further improvement to this utility model, the tooling is made of copper.

[0008] As a further improvement of this utility model, the outer diameter of the anti-deformation support end is 0.03mm-0.06mm smaller than the outer diameter of the pipe part to be clad.

[0009] As a further improvement of this utility model, the length of the anti-deformation support end is 2mm smaller than the length of the pipe part to be clad.

[0010] As a further improvement of this utility model, a workpiece limiting stage is provided between the clamping end and the anti-deformation support end.

[0011] As a further improvement of this utility model, the maximum outer diameter of the workpiece limiting platform and the maximum outer diameter of the workpiece fastening ring are consistent with the outer diameter of the pipe-type parts to be melted and coated.

[0012] As a further improvement of this utility model, the diameter of the heat dissipation hole is one-twentieth of the diameter of the anti-deformation support end.

[0013] As a further improvement of this utility model, the center-to-center distance between two adjacent heat dissipation holes is three-twentieths of the diameter of the anti-deformation support end.

[0014] The beneficial effects of this utility model are:

[0015] This utility model provides a deformation-preventing and cooling fixture for laser cladding of thin-walled tubular parts. The deformation-preventing support end cooperates with the thin-walled tubular part to provide support when the thin-walled tubular part is deformed, effectively reducing the deformation of the thin-walled tubular part. The heat dissipation holes further promote heat dissipation and reduce the temperature of the processed part, effectively preventing the thin-walled tubular part from overheating. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is an assembly diagram of the present invention during cladding application;

[0019] Figure 3 This is a schematic diagram of the present invention during cladding.

[0020] In the figure: 1. Tooling; 1-1. Clamping end; 1-2. Workpiece limiting stage; 1-3. Anti-deformation support end; 1-4. Threaded fastening end; 1-5. Heat dissipation hole; 1-6. Workpiece fastening ring; 2. Tube-type parts to be melted and coated; 3. Laser powder beam; 4. Three-jaw chuck; 5. Rotary motor. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] like Figure 1 As shown, a deformation-resistant and cooling fixture for laser cladding of thin-walled tubular parts includes a clamping end 1-1, a workpiece limiting stage 1-2, a deformation-resistant support end 1-3, a threaded fastening end 1-4, a heat dissipation hole 1-5, and a workpiece fastening ring 1-6.

[0023] This fixture is made entirely of copper and can accelerate heat dissipation of the pipe-like parts 2 to be clad. The clamping end 1-1 is located behind the anti-deformation support end 1-3, and the threaded fastening end 1-4 is located in front of the anti-deformation support end 1-3. The clamping end 1-1, the workpiece limiting platform 1-2, the anti-deformation support end 1-3, and the threaded fastening end 1-4 are an integral structure. The workpiece limiting platform 1-2 is located between the clamping end 1-1 and the anti-deformation support end 1-3. The maximum outer diameter of the workpiece limiting platform 1-2 and the maximum outer diameter of the workpiece fastening ring 1-6 are consistent with the outer diameter of the pipe-like parts 2 to be clad. Several heat dissipation holes 1-5 are provided, which are parallel to the fixture axis and run through the entire fixture. The diameter of each heat dissipation hole 1-5 is one-twentieth of the diameter of the anti-deformation support end 1-3. The center-to-center distance between two adjacent heat dissipation holes 1-5 is three-twentieths of the diameter of the anti-deformation support end 1-3. The length of the anti-deformation support end 1-3 is 2mm smaller than the length of the pipe-like part 2 to be clad; the outer diameter of the anti-deformation support end 1-3 is 0.03mm-0.06mm smaller than the outer diameter of the pipe-like part 2 to be clad.

[0024] Working principle and usage process of this utility model:

[0025] When using, such as Figure 2 As shown, the pipe-like part 2 to be clad is inserted into the anti-deformation support end 1-3 of the fixture 1, and abuts against the workpiece limiting table 1-2. Then, the workpiece fastening ring 1-6 is screwed into the threaded fastening end 1-4 to fix the pipe-like part 2 to be clad. Then, the three-jaw chuck clamps the clamping end 1-1 to fix the fixture 1. Figure 3 As shown, during the cladding process, the rotary motor 5 drives the tooling 1 to rotate, and the laser powder beam 3 scans the thin-walled pipe to be repaired for cladding repair. During the cladding repair process, the tooling 1, made of copper, can quickly dissipate heat for the pipe part 2 to be clad. When the heat of the pipe part 2 to be clad is transferred to the tooling 1, the heat dissipation holes 1-5 heat the air inside the holes, causing the air to expand and accelerate its flow, further promoting heat dissipation and reducing the temperature of the pipe part 2 to be clad, effectively preventing overheating. At the same time, when the pipe part 2 to be clad deforms, the anti-deformation support ends 1-3 can effectively support the pipe part 2 to be clad, preventing it from being severely deformed.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A deformation-resistant and cooling fixture for laser cladding of thin-walled tubular parts, characterized in that: It includes an anti-deformation support end (1-3), a clamping end (1-1) located behind the anti-deformation support end (1-3), a threaded fastening end (1-4) located in front of the anti-deformation support end (1-3), and a number of heat dissipation holes (1-5) parallel to the tooling axis and penetrating the entire tooling. The threaded fastening end (1-4) is threaded with a workpiece fastening ring (1-6).

2. The anti-deformation and cooling fixture for laser cladding of thin-walled tubular parts according to claim 1, characterized in that: The tooling is made entirely of copper.

3. The anti-deformation and cooling fixture for laser cladding of thin-walled tubular parts according to claim 1, characterized in that: The outer diameter of the anti-deformation support end (1-3) is 0.03mm-0.06mm smaller than the outer diameter of the pipe part (2) to be clad.

4. The anti-deformation and cooling fixture for laser cladding of thin-walled tubular parts according to claim 1, characterized in that: The length of the anti-deformation support end (1-3) is 2mm smaller than the length of the pipe part (2) to be clad.

5. The anti-deformation and cooling fixture for laser cladding of thin-walled tubular parts according to claim 1, characterized in that: A workpiece limiting stage (1-2) is provided between the clamping end (1-1) and the anti-deformation support end (1-3).

6. The anti-deformation and cooling fixture for laser cladding of thin-walled tubular parts according to claim 5, characterized in that: The maximum outer diameter of the workpiece limiting platform (1-2) and the maximum outer diameter of the workpiece fastening ring (1-6) are consistent with the outer diameter of the pipe-type parts (2) to be melted and coated.

7. The anti-deformation and cooling fixture for laser cladding of thin-walled tubular parts according to claim 1, characterized in that: The diameter of the heat dissipation hole (1-5) is one-twentieth of the diameter of the anti-deformation support end (1-3).

8. The anti-deformation and cooling fixture for laser cladding of thin-walled tubular parts according to claim 1, characterized in that: The center-to-center distance between two adjacent heat dissipation holes (1-5) is three-twentieths of the diameter of the anti-deformation support end (1-3).

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