Pin hole structure inner wall laser cladding device

Abstract

The utility model discloses a pinhole structure inner wall laser cladding device relates to laser cladding technical field, including main body mechanism and laser cladding head, the main body mechanism is provided with the fixing mechanism, the both sides of main body mechanism are fixedly connected with the reinforcing mechanism, the fixing mechanism includes the fixed link, and the fixed link is connected with the laser cladding head. The outer side of the fixing rod is fixedly connected with a rubber pad, and the fixing rod is fixedly connected with a limiting circular plate. By loosening the pulling plates, the pressure borne by the first spring disappears, the limiting circular plate is driven to move towards the middle of the protruding pipe cylinder, and meanwhile the fixing rod and the first anti-skid pad are driven to move synchronously, so that the first anti-skid pad is attached to the surface of a part needing to be cladded, and the part can be fixed; and a limiting circular plate and a first non-slip mat are driven to move synchronously, and meanwhile, a first spring is extruded, so that fixation of a part can be relieved, the effect of facilitating disassembly and assembly is achieved, and the convenience of laser cladding is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cladding, in particular to a laser cladding device for the inner wall of a pin hole structure. Background Art

[0002] In the fields of aerospace, shipbuilding, nuclear power, automobiles, etc., the wear resistance and corrosion resistance of the pin hole structures of some core parts directly determine the service life of the whole part. The laser cladding technology can restore the original size or significantly improve the wear and corrosion resistance of the surface of the inner wall of the pin hole structure by cladding the same or dissimilar metal powders, with less thermal influence and less deformation on the whole part.

[0003] Chinese Patent with application publication number CN210117419U discloses a laser cladding device for the inner wall of a pin hole structure, including a three-jaw chuck, a convex tube cylinder, a part, a metal ring, and bolts. The three-jaw chuck is fixed at the center of the two-axis positioner platform. The convex tube cylinder includes a cylindrical shell and a convex tube. The top surface of the cylindrical shell is connected to the convex tube. The cylindrical shell and the convex tube are through and have no bottom surface. The side wall of the cylindrical shell is provided with threaded holes. This utility model solves the technical problem that the depth-width ratio of the pin hole structure is large and it is difficult to complete with the traditional surfacing technology and the welding torch cannot penetrate deeply, so as to obtain the inner wall of the pin hole structure with corrosion resistance and wear resistance. Although the above solution can process the deeper and wider pin hole structure;

[0004] However, the fixing and disassembling of the part by this device are relatively complex, and it is necessary to rotate multiple groups of bolts simultaneously, which reduces the convenience of using the device. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a laser cladding device for the inner wall of a pin hole structure to solve the problems raised in the above background art.

[0006] To solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A laser cladding device for the inner wall of a pin hole structure includes a main body mechanism and a laser cladding head. A fixing mechanism is arranged on the main body mechanism, and reinforcing mechanisms are fixedly connected to both sides of the main body mechanism.

[0008] The fixing mechanism includes a fixing rod. A rubber pad is fixedly connected to the outside of the fixing rod. A limiting circular plate is fixedly connected to the fixing rod. A first spring is fixedly connected to one side of the limiting circular plate.

[0009] A further improvement of the technical solution of the utility model lies in that: one end of the fixing rod is fixedly connected with a first anti-slip pad, and the other end of the fixing rod is fixedly connected with a pull plate. The first anti-slip pad is attached to the surface of the part to be clad, which can increase the friction with the surface of the part, thereby improving the fixing strength of the part.

[0010] A further improvement of the technical solution of the present utility model lies in that: the main body mechanism includes a two-axis positioner platform, a three-jaw chuck is arranged on the two-axis positioner platform, a convex tube cylinder is arranged on the three-jaw chuck, a support hole is opened on the convex tube cylinder, a part is placed inside the convex tube cylinder and sleeved on the convex tube, and then it is fixed by a fixing rod and a first anti-slip pad.

[0011] A further improvement of the technical solution of the present utility model lies in that: a convex tube is arranged inside the convex tube cylinder, the fixing rod and the rubber pad are both movably connected in the support hole, the other end of the first spring is fixedly connected to the inner wall of the convex tube cylinder, and the convex tube cylinder cooperates with the limit circular plate to limit the position of the first spring.

[0012] A further improvement of the technical solution of the present utility model lies in that: the reinforcement mechanism includes a storage rack, the storage rack is fixedly connected to both sides of the two-axis positioner platform, a connecting rod is hinged on the storage rack, a first fixing hole and a second fixing hole are opened on the connecting rod, and the first fixing hole and the second fixing hole can fix the reinforcement rod at different positions, so as to meet the requirements of different situations.

[0013] A further improvement of the technical solution of the present utility model lies in that: a reinforcement rod is slidably connected inside the connecting rod, one end of the reinforcement rod is hinged with a second anti-slip pad, a limit groove is opened on the reinforcement rod, and a second spring is fixedly connected inside the limit groove to adjust the angle of the second anti-slip pad so that the second anti-slip pad is in contact with the ground, improving the support strength on both sides of the two-axis positioner platform.

[0014] A further improvement of the technical solution of the present utility model lies in that: one end of the second spring is fixedly connected with a positioning block, and the positioning blocks are both movably connected inside the first fixing hole and the second fixing hole. The second spring drives the positioning block to move into the second fixing hole, and the position of the reinforcement rod can be fixed.

[0015] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model compared with the prior art is:

[0016] 1. The present utility model provides a laser cladding device for the inner wall of a pin hole structure. When the pull plate is loosened, the pressure on the first spring disappears, driving the limit circular plate to move towards the middle of the convex tube cylinder, and at the same time driving the fixing rod and the first anti-slip pad to move synchronously, so that the first anti-slip pad is in contact with the surface of the part to be cladded, and the part can be fixed. Pulling out multiple groups of pull plates outward drives the limit circular plate and the first anti-slip pad to move synchronously, and at the same time squeezes the first spring, which can release the fixation of the part, achieving the effect of facilitating disassembly and assembly, and further improving the convenience of laser cladding.

[0017] 2. The present utility model provides a laser cladding device for the inner wall of a pin hole structure. Pull the connecting rod outwards, and then pull the reinforcing rod and the second anti-slip pad downwards, so that the positioning block is located behind the second fixing hole. The pressure on the positioning block and the second spring disappears, and the second spring drives the positioning block to move into the second fixing hole to fix the position of the reinforcing rod. Then, adjust the angle of the second anti-slip pad so that the second anti-slip pad is in contact with the ground, improving the support strength on both sides of the two-axis positioner platform. Thus, when laser cladding the pin hole structure, the device can be prevented from moving, and the processing quality is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a schematic diagram of the sectional structure of the fixing mechanism of the present utility model;

[0020] Figure 3 is a schematic diagram of the structure of the main body mechanism of the present utility model;

[0021] Figure 4 is a schematic diagram of the sectional structure of the reinforcing mechanism of the present utility model.

[0022] In the figure: 1, fixing mechanism; 11, fixing rod; 12, rubber pad; 13, limiting circular plate; 14, first spring; 15, first anti-slip pad; 16, pulling plate; 2, main body mechanism; 21, two-axis positioner platform; 22, three-jaw chuck; 23, convex tube cylinder; 24, support hole; 25, convex tube; 3, reinforcing mechanism; 31, storage rack; 32, connecting rod; 33, first fixing hole; 34, second fixing hole; 35, reinforcing rod; 36, second anti-slip pad; 37, limiting groove; 38, second spring; 39, positioning block; 4, laser cladding head. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following further describes the present utility model in detail with reference to the embodiments:

[0024] Embodiment 1

[0025] As Figures 1-4 shown, the present utility model provides a laser cladding device for the inner wall of a pin hole structure, including a main body mechanism 2. A fixing mechanism 1 and a laser cladding head 4 are arranged on the main body mechanism 2. Reinforcing mechanisms 3 are fixedly connected to both sides of the main body mechanism 2. The fixing mechanism 1 includes a fixing rod 11. A rubber pad 12 is fixedly connected to the outer side of the fixing rod 11. A limiting circular plate 13 is fixedly connected to the fixing rod 11. A first spring 14 is fixedly connected to one side of the limiting circular plate 13. A first anti-slip pad 15 is fixedly connected to one end of the fixing rod 11. A pulling plate 16 is fixedly connected to the other end of the fixing rod 11;

[0026] Specifically, place the part to be cladded in the middle of the convex tube cylinder 23, loosen the pull plate 16, the pressure on the first spring 14 disappears, drive the limit circular plate 13 to move towards the middle of the convex tube cylinder 23, and at the same time drive the fixing rod 11 and the first anti-slip pad 15 to move synchronously, so that the first anti-slip pad 15 is in contact with the surface of the part to be cladded, then the part can be fixed. At the same time, the rubber pad 12 can increase the friction with the inner wall of the support hole 24, thereby improving the fixing strength of the part. Subsequently, start the laser cladding head 4 to perform the cladding operation on the part. Pull the multiple groups of pull plates 16 outwards, drive the limit circular plate 13 and the first anti-slip pad 15 to move synchronously, and at the same time squeeze the first spring 14, which can release the fixation of the part, achieving the effect of being convenient for disassembly and assembly, and thus improving the convenience of laser cladding.

[0027] Embodiment 2

[0028] As Figures 1-4 shown, on the basis of Embodiment 1, the present utility model provides a technical solution: Preferably, the main body mechanism 2 includes a two-axis positioner platform 21, a three-jaw chuck 22 is arranged on the two-axis positioner platform 21, a convex tube cylinder 23 is arranged on the three-jaw chuck 22, a support hole 24 is opened on the convex tube cylinder 23, a convex tube 25 is arranged inside the convex tube cylinder 23, the fixing rod 11 and the rubber pad 12 are both movably connected in the support hole 24, and the other end of the first spring 14 is fixedly connected to the inner wall of the convex tube cylinder 23;

[0029] Specifically, the upper end of the convex tube cylinder 23 is fixed to the three-jaw chuck 22, the part is placed inside the convex tube cylinder 23 and sleeved on the convex tube 25, and then it is fixed by the fixing rod 11 and the first anti-slip pad 15, and then the inner wall of the pin hole is subjected to laser cladding operation by the laser cladding head 4.

[0030] Embodiment 3

[0031] As Figures 1-4 shown, on the basis of Embodiment 1, the present utility model provides a technical solution: Preferably, the reinforcement mechanism 3 includes a storage rack 31, the storage rack 31 is fixedly connected to both sides of the two-axis positioner platform 21, a connecting rod 32 is hinged on the storage rack 31, a first fixing hole 33 and a second fixing hole 34 are opened on the connecting rod 32, a reinforcing rod 35 is slidably connected inside the connecting rod 32, one end of the reinforcing rod 35 is hinged with a second anti-slip pad 36, a limiting groove 37 is opened on the reinforcing rod 35, a second spring 38 is fixedly connected inside the limiting groove 37, one end of the second spring 38 is fixedly connected with a positioning block 39, and the positioning blocks 39 are both movably connected inside the first fixing hole 33 and the second fixing hole 34;

[0032] Specifically, the connecting rod 32 is bent outward, the positioning block 39 is pressed into the limit groove 37, and the second spring 38 is squeezed at the same time, and then the reinforcement rod 35 and the second anti-slip pad 36 are pulled downward so that the positioning block 39 is located on the rear side of the second fixing hole 34. The pressure on the positioning block 39 and the second spring 38 disappears, and the second spring 38 drives the positioning block 39 to move into the second fixing hole 34, so that the position of the reinforcement rod 35 can be fixed, and then the angle of the second anti-slip pad 36 is adjusted so that the second anti-slip pad 36 is in contact with the ground, thereby improving the supporting strength on both sides of the two-axis positioner platform 21, so that when the pin hole structure is laser clad, the movement of the device can be avoided, thereby improving the processing quality.

[0033] The working principle of the laser cladding device for the inner wall of the pin hole structure is described in detail below.

[0034] like Figures 1-4 As shown, the connecting rod 32 is bent outward, and then the reinforcing rod 35 and the second anti-skid pad 36 are pulled downward so that the positioning block 39 is located at the rear side of the second fixing hole 34, and the second spring 38 drives the positioning block 39 to move into the second fixing hole 34, so that the position of the reinforcing rod 35 can be fixed, and then the angle of the second anti-skid pad 36 is adjusted so that the second anti-skid pad 36 is in contact with the ground, thereby improving the supporting strength of the two-axis positioner platform 21 on both sides, and the upper end of the convex tube cylinder 23 is fixed on the three-jaw chuck 22, the part is placed inside the convex tube cylinder 23 and sleeved on the convex tube 25, and the pull plate 16 is released. The pressure on the first spring 14 disappears, driving the limiting circular plate 13 to move toward the middle of the convex tube cylinder 23, and at the same time driving the fixing rod 11 and the first anti-skid pad 15 to move synchronously, so that the first anti-skid pad 15 is in contact with the surface of the part to be clad, so that the part can be fixed, and then the laser cladding head 4 is started, so that the part is clad.

[0035] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A laser cladding device for the inner wall of a pin hole structure, comprising a main body (2) and a laser cladding head (4), characterized in that: The main body structure (2) is provided with a fixing structure (1), and two sides of the main body structure (2) are fixedly connected with reinforcement structures (3); The fixing mechanism (1) comprises a fixing rod (11), the outer side of the fixing rod (11) is fixedly connected to a rubber pad (12), the fixing rod (11) is fixedly connected to a limiting circular plate (13), and one side of the limiting circular plate (13) is fixedly connected to a first spring (14).

2. The laser cladding device for the inner wall of a pin hole structure according to claim 1 is characterized in that: One end of the fixing rod (11) is fixedly connected to a first anti-slip pad (15), and the other end of the fixing rod (11) is fixedly connected to a pull plate (16).

3. The laser cladding device for the inner wall of a pin hole structure according to claim 1 is characterized in that: The main body mechanism (2) comprises a two-axis positioner platform (21), a three-jaw chuck (22) is arranged on the two-axis positioner platform (21), a convex tube cylinder (23) is arranged on the three-jaw chuck (22), and a support hole (24) is opened on the convex tube cylinder (23).

4. The laser cladding device for the inner wall of a pin hole structure according to claim 3 is characterized in that: A convex tube (25) is provided inside the convex tube cylinder (23); the fixing rod (11) and the rubber pad (12) are both movably connected in the support hole (24); and the other end of the first spring (14) is fixedly connected to the inner wall of the convex tube cylinder (23).

5. The laser cladding device for the inner wall of a pin hole structure according to claim 1 is characterized in that: The reinforcement mechanism (3) comprises a storage rack (31), the storage rack (31) being fixedly connected to two sides of the two-axis positioner platform (21), a connecting rod (32) being hingedly connected to the storage rack (31), and a first fixing hole (33) and a second fixing hole (34) being formed on the connecting rod (32).

6. The laser cladding device for the inner wall of a pin hole structure according to claim 5 is characterized in that: A reinforcing rod (35) is slidably connected inside the connecting rod (32), a second anti-slip pad (36) is hingedly connected to one end of the reinforcing rod (35), a limiting groove (37) is provided on the reinforcing rod (35), and a second spring (38) is fixedly connected inside the limiting groove (37).

7. The laser cladding device for the inner wall of a pin hole structure according to claim 6 is characterized in that: One end of the second spring (38) is fixedly connected to a positioning block (39), and the positioning block (39) is movably connected inside the first fixing hole (33) and the second fixing hole (34).

Images