Pipe fitting inner wall laser cladding device

Abstract

The utility model discloses a pipe fitting inner wall laser cladding device, which relates to the technical field of laser cladding equipment and comprises a rack and a pipeline, and a fixing mechanism capable of fixing and limiting the pipeline is assembled on the rack; by arranging the conveying mechanism, a second motor drives a second gear to enable a first gear to start to rotate, and a second screw rod can drive a laser generator body and a sprayer body to move to the position, needing to be repaired, in the pipeline; a rotary disc is rotated, so that a threaded blade on a threaded conveying rod conveys repairing powder in a second screw rod into a sprayer body, the repairing powder is sprayed to the inner wall of the pipeline through the sprayer body, and a laser generator body heats and melts the repairing powder on the inner wall of the pipeline for repairing; and meanwhile, a threaded blade on the threaded conveying rod can also play a cleaning role on the inner wall of the second screw rod when rotating, so that the repairing powder can be uniformly conveyed.

Description

Technical Field

[0001] This utility model relates to the field of laser cladding equipment technology, and in particular to a laser cladding device for the inner wall of pipe fittings. Background Technology

[0002] In industrial production and daily life, various pipe fittings are widely used to transport fluids, gases, and other media. However, due to long-term use, corrosion, wear, and other factors, the inner wall of the pipe fittings may be damaged, such as cracks, pits, and corrosion spots. This not only affects the service life of the pipe fittings but may also lead to media leakage and safety accidents. Therefore, effective repair of the inner wall of pipe fittings is particularly important.

[0003] In existing cladding devices, the repair powder is mostly transported directly through a conveying pipe into the interior of the spraying device, and then sprayed onto the inner wall of the pipe by the spraying device. However, the repair powder may be blocked or flow unevenly in the conveying pipe, making it impossible to maintain a stable delivery of the repair powder. This results in the repair powder being sprayed intermittently by the spraying device, affecting the repair effect. Utility Model Content

[0004] The purpose of this invention is to provide a laser cladding device for the inner wall of a pipe to solve the problem of blockage or uneven flow of repair powder during conveying in the pipe.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A laser cladding device for the inner wall of a pipe includes a frame and a pipe, wherein the frame is equipped with a fixing mechanism capable of fixing and limiting the pipe.

[0007] The fixing mechanism includes a movable frame that is slidably mounted on the frame, an electric telescopic rod that is fixedly mounted on one side of the top of the frame, a fixed frame that is fixedly mounted on the top of the movable frame, and a clamping assembly that can clamp the pipe on the fixed frame.

[0008] It also includes a conveying mechanism mounted on the movable frame. The conveying mechanism includes a connecting frame fixedly mounted on one side of the movable frame. A support base is fixedly mounted on the top of the connecting frame. A second screw is slidably connected inside the support base. A feeding assembly capable of conveying repair powder into the pipeline is mounted on the second screw.

[0009] As a further description of the above technical solution:

[0010] The clamping assembly includes a semi-circular block fixedly installed on the top of the movable frame. A first screw is threadedly connected to the inside of the fixed frame. An arc-shaped block is rotatably connected to the bottom end of the first screw. Several rollers are rotatably installed on both the arc-shaped block and the semi-circular block. A disc is rotatably installed on one side of the frame. A fixing plate is fixedly installed on one side of the disc. A lead screw is rotatably installed inside the fixing plate. Clamps are provided at both ends of the lead screw. A first motor is fixedly installed on one side of the frame.

[0011] As a further description of the above technical solution:

[0012] The mobile frame is fixedly installed on the output end of the electric telescopic pole, and the output end of the first motor extends to the outside of the frame and is fixedly connected to the disc.

[0013] As a further description of the above technical solution:

[0014] One of the clamps is fixedly mounted on the fixed plate and sleeved on the lead screw, while the other clamp is threaded onto the lead screw.

[0015] As a further description of the above technical solution:

[0016] The feeding assembly includes a first gear threaded onto the second screw, a second motor fixedly mounted on the support base, a second gear fixedly mounted on the output end of the second motor, a laser generator body and a sprayer body fixedly mounted on one side of the second screw, a feed pipe connected to the other side of the second screw, a threaded conveying rod rotatably connected inside the second screw, one end of the threaded conveying rod extending to the outside of the second screw and fixedly connected to a turntable.

[0017] As a further description of the above technical solution:

[0018] The first gear is rotatably mounted on the support base, and the first gear meshes with the second gear. The outer wall of the threaded blade on the threaded conveying rod is in contact with the inner wall of the second screw.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0020] 1. By setting up a fixed mechanism, the mobile frame is moved by an electric telescopic rod, thereby adjusting the distance between the mobile frame and the machine frame, so as to install pipes of different lengths; by setting up a clamping component, the use of two clamps, a semi-circular block and an arc block can clamp and fix pipes of different sizes. At the same time, the roller can reduce the friction between the arc block and the semi-circular block and the pipe, so that the pipe will not generate resistance when rotating, thus improving the application scenarios.

[0021] 2. By setting up a conveying mechanism, the second motor drives the second gear to start rotating the first gear. The second screw, which is threadedly connected to the first gear, will move the laser generator body and the sprayer body to the position inside the pipe that needs repair. The rotating turntable causes the threaded blades on the threaded conveying rod to transport the repair powder in the second screw to the inside of the sprayer body. The sprayer body sprays the repair powder onto the inner wall of the pipe, while the laser generator body heats and melts the repair powder on the inner wall of the pipe for repair. At the same time, the threaded blades on the threaded conveying rod also clean the inner wall of the second screw when rotating, so that impurities do not stick or accumulate inside the second screw, and the repair powder can be delivered evenly. Attached Figure Description

[0022] Figure 1 An overall schematic diagram according to an embodiment of the present utility model is shown;

[0023] Figure 2 The present invention provides an embodiment of the present invention. Figure 1 Another perspective view;

[0024] Figure 3 A schematic diagram of a clamping assembly provided according to an embodiment of the present invention is shown;

[0025] Figure 4 A schematic diagram of a conveying mechanism according to an embodiment of the present invention is shown;

[0026] Figure 5 A schematic diagram of a feeding assembly according to an embodiment of the present invention is shown;

[0027] Figure 6 A cross-sectional view of a second screw provided according to an embodiment of the present invention is shown.

[0028] Legend:

[0029] 10. Rack;

[0030] 20. Pipeline;

[0031] 30. Fixing mechanism; 31. Movable frame; 32. Electric telescopic rod; 33. Fixed frame; 34. Clamping assembly; 341. Semicircular block; 342. First screw; 343. Arc block; 344. Roller; 345. Disc; 346. Fixing plate; 347. Lead screw; 348. Clamp; 349. First motor;

[0032] 40. Conveying mechanism; 41. Connecting frame; 42. Support base; 43. Second screw; 44. Feeding assembly; 441. First gear; 442. Second motor; 443. Second gear; 444. Laser generator body; 445. Sprayer body; 446. Feed pipe; 447. Threaded conveyor rod; 448. Turntable. Detailed Implementation

[0033] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0034] like Figure 1 - Figure 6 As shown, the present invention provides a laser cladding device for the inner wall of a pipe, including a frame 10 and a pipe 20, wherein a fixing mechanism 30 capable of fixing and limiting the pipe 20 is mounted on the frame 10.

[0035] The fixing mechanism 30 includes a movable frame 31 that is slidably mounted on the frame 10. An electric telescopic rod 32 is fixedly mounted on one side of the top end of the frame 10. A fixing frame 33 is fixedly mounted on the top end of the movable frame 31. A clamping assembly 34 capable of clamping the pipe 20 is mounted on the fixing frame 33.

[0036] It also includes a conveying mechanism 40 mounted on the movable frame 31. The conveying mechanism 40 includes a connecting frame 41 fixedly mounted on one side of the movable frame 31. A support base 42 is fixedly mounted on the top of the connecting frame 41. A second screw 43 is slidably connected inside the support base 42. A feeding assembly 44 capable of conveying the repair powder into the pipe 20 is mounted on the second screw 43.

[0037] like Figure 2 - Figure 3 As shown, the clamping assembly 34 includes a semi-circular block 341 fixedly installed on the top of the movable frame 31. The pipe 20 is supported by the semi-circular block 341 and the clamp 348 at the bottom. The fixed frame 33 is internally threaded with a first screw 342. The bottom end of the first screw 342 is rotatably connected to an arc-shaped block 343. By rotating the first screw 342, the arc-shaped block 343 can be raised and lowered. A limiter is provided on one side of the arc-shaped block 343. The limiter prevents the arc-shaped block 343 from rotating with the first screw 342 when it is raised and lowered.

[0038] Several rollers 344 are rotatably mounted on both the arc-shaped block 343 and the semi-circular block 341. The rollers 344 reduce the friction between the arc-shaped block 343 and the semi-circular block 341 and the pipe 20, so that the pipe 20 will not generate resistance when rotating. A disc 345 is rotatably mounted on one side of the frame 10. A fixing plate 346 is fixedly mounted on one side of the disc 345. When the disc 345 rotates, it will also drive the fixing plate 346 to rotate. A lead screw 347 is rotatably mounted inside the fixing plate 346. Clamps 348 are provided at both ends of the lead screw 347. A first motor 349 is fixedly mounted on one side of the frame 10.

[0039] In more detail, the movable frame 31 is fixedly installed on the output end of the electric telescopic rod 32. The electric telescopic rod 32 can drive the movable frame 31 to move. By adjusting the distance between the movable frame 31 and the frame 10, it can be adapted to pipes 20 of different lengths. The output end of the first motor 349 extends to the outside of the frame 10 and is fixedly connected to the disc 345. The first motor 349 can drive the disc 345 to rotate. The rotating disc 345 causes the clamped pipe 20 to rotate one revolution. The inner wall of the pipe 20 is repaired by the laser generator body 444 and the sprayer body 445.

[0040] like Figure 3 As shown, one clamp 348 is fixedly mounted on the fixed plate 346 and sleeved on the screw 347, while the other clamp 348 is threaded onto the screw 347. After the position of the moving frame 31 is adjusted, the pipe 20 is placed on the bottom clamp 348 and the semicircular block 341 to support the pipe 20. Then, the screw 347 is rotated so that the top clamp 348 can descend and clamp one end of the pipe 20. Next, the first screw 342 is rotated so that the arc block 343 can descend. The other end of the pipe 20 is clamped by the arc block 343 and several rollers 344 on the semicircular block 341. The rollers 344 can reduce the friction between the arc block 343, the semicircular block 341 and the pipe 20, so that the pipe 20 will not generate resistance when rotating. At the same time, it can clamp and fix pipes 20 of different sizes, improving the application scenarios.

[0041] like Figure 4 - Figure 6As shown, the feeding assembly 44 includes a first gear 441 threaded onto a second screw 43, a second motor 442 fixedly mounted on a support base 42, and a second gear 443 fixedly mounted on the output end of the second motor 442. The second gear 443 can be driven to rotate by the second motor 442. A laser generator body 444 and a sprayer body 445 are fixedly mounted on one side of the second screw 43. The laser generator body 444 and the sprayer body 445 are existing technologies. The principle of the laser generator body 444 is as follows: the optical pump source (such as a flash lamp or laser diode) inside the laser generator body 444 provides high-energy light energy to the working material (such as Nd:YAG crystal). When the laser beam reaches a certain energy intensity in the optical resonant cavity, some mirrors will allow a portion of the laser beam to pass through, thereby outputting high-energy laser light for heating and melting the powder on the inner wall of the tube.

[0042] The principle of the sprayer body 445 is as follows: the sprayer body 445 is connected to the inside of the second screw 43 to receive the repair powder delivered from the outside. The threaded conveying rod 447 inside the second screw 43 stably delivers the powder into the sprayer body 445. When the powder reaches the nozzle, it is atomized into tiny particles by means of airflow (such as compressed air) or mechanical vibration inside the device, and sprayed onto the inner wall of the pipe 20 at a certain speed and direction.

[0043] A feed pipe 446 is connected to the other side of the second screw 43, through which repair powder is conveyed into the second screw 43. The feed pipe 446 is a flexible hose with a margin. A threaded conveying rod 447 is rotatably connected inside the second screw 43. One end of the threaded conveying rod 447 extends to the outside of the second screw 43 and is fixedly connected to a turntable 448. After the pipe 20 is fixed, the second motor 442 is started to drive the second gear 443 to rotate. Through meshing, the first gear 441 will also start to rotate. When the first gear 441 rotates, the second screw 43, which is threaded to it, will move into the pipe 20. While moving, the laser generator body 444 and the sprayer body 445 are moved to the position inside the pipe 20 that needs repair and then stop moving. The repair powder is conveyed to the second screw 43 through the feed pipe 446, and the turntable 448 is rotated, so that the threaded conveying rod 447 starts to rotate. The threaded blades on the threaded conveying rod 447 convey the repair powder in the second screw 43 to the inside of the sprayer body 445. The sprayer body 445 sprays the repair powder onto the inner wall of the pipe 20, and the laser generator body 444 heats and melts the repair powder on the inner wall of the pipe 20, thereby completing the repair of the pipe 20.

[0044] In more detail, the first gear 441 is rotatably mounted on the support base 42. The first gear 441 meshes with the second gear 443. When the second gear 443 rotates, the first gear 441 will also rotate synchronously through meshing. The outer wall of the threaded blade on the threaded conveying rod 447 is in contact with the inner wall of the second screw 43. While rotating, the threaded conveying rod 447 also plays a role in cleaning the inner wall of the second screw 43, so that repair powder will not stick or accumulate on the inner wall of the second screw 43.

[0045] Working principle: In use, the electric telescopic rod 32 is activated to drive the moving frame 31 to move. By adjusting the distance between the moving frame 31 and the frame 10, it can be used for pipes 20 of different lengths. Then, the pipe 20 is placed on the clamp 348 and the semi-circular block 341 at the bottom to support the pipe 20. Then, the screw 347 is rotated so that the clamp 348 at the top can descend and clamp one end of the pipe 20. Then, the first screw 342 is rotated so that the arc block 343 can descend. The other end of the pipe 20 is clamped by the arc block 343 and the rollers 344 on the semi-circular block 341. The rollers 344 can reduce the friction between the arc block 343, the semi-circular block 341 and the pipe 20, so that the pipe 20 will not generate resistance when rotating. At the same time, it can clamp and fix pipes 20 of different sizes, improving the application scenarios.

[0046] After the pipe 20 is fixed, the second motor 442 is started to drive the second gear 443 to rotate. Through meshing, the first gear 441 will also start to rotate. When the first gear 441 rotates, the second screw 43, which is threaded to it, will move towards the inside of the pipe 20. While moving, it will drive the laser generator body 444 and the sprayer body 445 to the position inside the pipe 20 that needs to be repaired and stop moving. The repair powder is conveyed to the second screw 43 through the feed pipe 446, and the turntable 448 is rotated to make the threaded conveying rod 447 start to rotate. The threaded blades on the threaded conveying rod 447 convey the repair powder in the second screw 43 to the inside of the sprayer body 445. The sprayer body 445 sprays the repair powder onto the inner wall of the pipe 20, while the laser generator body 444 heats and melts the repair powder on the inner wall of the pipe 20.

[0047] At this time, starting the first motor 349 can drive the disc 345 to rotate. The rotating disc 345 causes the clamped pipe 20 to rotate once, and the inner wall of the pipe 20 is repaired by the laser generator body 444 and the sprayer body 445.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A laser cladding device for the inner wall of a pipe, comprising a frame (10) and a pipe (20), characterized in that, The rack (10) is provided with a fixing mechanism (30) capable of fixing and limiting the pipeline (20); The fixing mechanism (30) comprises a moving frame (31) slidably installed on the rack (10), a motorized telescopic rod (32) fixedly installed on one side of the top end of the rack (10), and a fixing frame (33) fixedly installed on the top end of the moving frame (31), wherein the fixing frame (33) is provided with a clamping assembly (34) capable of clamping the pipeline (20). Further comprising a conveying mechanism (40) mounted on the moving frame (31), the conveying mechanism (40) comprises a connecting frame (41) fixedly installed on one side of the moving frame (31), a support seat (42) fixedly installed on the top end of the connecting frame (41), a second screw rod (43) slidably connected in the support seat (42), and a feeding assembly (44) mounted on the second screw rod (43) and capable of conveying the powder for repairing into the pipeline (20).

2. The apparatus for laser cladding inner wall of pipe according to claim 1, characterized in that, The clamping assembly (34) comprises a semicircle block (341) fixedly installed on the top of the moving frame (31), a first screw rod (342) threadedly connected in the fixing frame (33), an arc-shaped block (343) rotatably connected to the bottom end of the first screw rod (342), a plurality of rollers (344) rotatably installed on the semicircle block (341) and the arc-shaped block (343), a disc (345) rotatably installed on one side of the rack (10), a fixed plate (346) fixedly installed on one side of the disc (345), a lead screw (347) rotatably installed in the fixed plate (346), clamps (348) provided at both ends of the lead screw (347), and a first motor (349) fixedly installed on one side of the rack (10).

3. The apparatus for laser cladding the inner wall of a pipe according to claim 2, wherein, The moving frame (31) is fixedly installed on the output end of the motorized telescopic rod (32), and the output end of the first motor (349) extends to the outside of the rack (10) and is fixedly connected with the disc (345).

4. The apparatus for laser cladding the inner wall of a pipe according to claim 3, wherein One of the clamps (348) is fixedly installed on the fixed plate (346) and sleeved on the lead screw (347), and the other clamp (348) is threadedly installed on the lead screw (347).

5. The apparatus for laser cladding the inner wall of a pipe according to claim 1, wherein, The feeding assembly (44) comprises a first gear (441) threadedly installed on the second screw rod (43), a second motor (442) fixedly installed on the support seat (42), a second gear (443) fixedly installed on the output end of the second motor (442), a laser generator body (444) and a sprayer body (445) fixedly installed on one side of the second screw rod (43), a feeding pipe (446) communicatively provided on the other side of the second screw rod (43), a threaded conveying rod (447) rotatably connected in the second screw rod (43), and a turntable (448) fixedly connected to one end of the threaded conveying rod (447) and extending to the outside of the second screw rod (43).

6. The apparatus for laser cladding the inner wall of a pipe according to claim 5, wherein, The first gear (441) is rotatably installed on the support seat (42), the first gear (441) is engaged with the second gear (443), and the outer wall of the threaded blade on the threaded conveying rod (447) is combined with the inner wall of the second screw rod (43).

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