Automatic rotating tool for plasma spraying

Abstract

The invention discloses a plasma spraying automatic rotating tool which comprises a base, a fixed seat is fixedly connected to one side of the top of the base, and a first movable seat is arranged on the side, away from the fixed seat, of the top of the base. The pipe fitting fixing assembly is arranged at the tops of the fixed seat and the first movable seat; the power unit is arranged on the side, away from the first movable base, of the top of the fixed base. The invention relates to the technical field of plasma spraying, the inner sides of the two ends of a pipe fitting are internally supported and fixed through a pipe fitting fixing assembly, spraying blind areas are prevented from being formed on the outer side of the pipe fitting, meanwhile, the pipe fitting fixing device can adapt to fixing of pipe fittings with different lengths and diameters, and the pipe fitting is driven by a power unit to rotate at a constant speed; the spraying track of the plasma spray gun uniformly covers the surface of the pipe fitting, secondary spraying is not needed, the labor intensity of workers is reduced, and the stability and consistency of the quality of a plasma coating are ensured.

Description

Technical Field

[0001] This invention relates to the field of plasma spraying technology, specifically to an automatic rotary tooling for plasma spraying. Background Technology

[0002] Plasma spraying is a technology for strengthening and modifying material surfaces. It involves heating materials such as ceramics, alloys, or metals to a molten or semi-molten state and spraying them at high speed onto the substrate surface to form a functional coating. This coating can form a coating with properties different from the substrate material, and the composition and structure of the coating can be flexibly adjusted. According to different usage requirements and working environments, coatings with specific properties can be precisely customized, thereby significantly improving the wear resistance, corrosion resistance, heat resistance, and oxidation resistance of the substrate, effectively extending the service life of the substrate.

[0003] However, when performing plasma spraying on tubular components, traditional tooling fixtures are typically used to fix the components externally, which prevents the components from rotating. This results in blind spots at the tooling fixtures, requiring secondary spraying. This can easily lead to situations where the coating is too thick or too thin in some areas, increasing the labor intensity for workers and making it difficult to guarantee the stability and consistency of coating quality. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an automatic rotating plasma spraying fixture. This solves the problem that when performing plasma spraying on tubular components, traditional fixtures are used to fix the components externally, making it impossible to rotate the components. This results in spraying blind spots at the fixture, requiring subsequent secondary spraying, which can easily lead to some areas having excessively thick or thin coatings. This increases the labor intensity for workers and makes it difficult to ensure the stability and consistency of coating quality.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic rotary plasma spraying fixture, comprising a base, a fixed seat fixedly connected to one side of the top of the base, and a first movable seat disposed on the side of the top of the base away from the fixed seat. The automatic rotary plasma spraying fixture further comprises a pipe fixing assembly disposed on the top of the fixed seat and the first movable seat; a power unit disposed on the side of the top of the fixed seat away from the first movable seat; and a lifting support assembly disposed on the side of the fixed seat and the first movable seat close to each other. The pipe fixing assembly provides support and fixation on the inner sides of both ends of the pipe and can adapt to different lengths and inner diameters. The power unit provides necessary power support for the rotation of the pipe, and the lifting support assembly supports and adjusts the height of the pipe before fixing it.

[0006] Preferably, the pipe fixing assembly includes a first bearing seat, of which two are provided, respectively fixedly connected to the top of a fixed seat and a first movable seat on opposite sides; a connecting shaft is rotatably connected to the inner wall of the first bearing seat; multiple arc-shaped plates are provided, equidistantly arranged on the outer side of the connecting shaft; an outward expansion and clamping assembly is provided on the side of the connecting shaft and the arc-shaped plates on opposite sides; a position adjustment assembly is provided at the bottom of the first movable seat; a position sensing assembly is provided on one side of the outer wall of the fixed seat; and a limiting assembly is provided on the outer wall of the connecting shaft; wherein, the first bearing seat positions and supports the connecting shaft, the outward expansion and clamping assembly performs an outward expansion and clamping operation on the arc-shaped plates, so that the arc-shaped plates clamp against the inner wall of the pipe fitting, the outward expansion and clamping assembly and the position sensing assembly adjust and sense the position of the first movable seat to accommodate pipe fittings of different lengths, and the limiting assembly limits the end of the pipe fitting.

[0007] Preferably, the outward expansion and tightening assembly includes an adjusting rod, which is fitted to the inner wall of the connecting shaft; a first connecting rod is rotatably connected to the inner side of one end of the arc-shaped plate near the first bearing seat, and the other end is rotatably connected to the outer wall of the connecting shaft; a second connecting rod is rotatably connected to the inner side of one end of the arc-shaped plate near the first bearing seat; a third connecting rod is rotatably connected to the inner side of one end of the arc-shaped plate away from the first bearing seat, and the other end is rotatably connected to the outer wall of the adjusting rod; multiple sliding grooves are provided, equidistantly distributed on the outside of the connecting shaft, and the inner wall of the groove is fitted to the end of the second connecting rod away from the arc-shaped plate; an adjusting screw is rotatably connected to the end of the connecting shaft away from the third connecting rod, and the outer wall is threaded to the inner wall of the adjusting rod; a rocker wheel is fixedly connected to the end of the adjusting screw away from the third connecting rod; wherein, by rotating the adjusting screw through the rocker wheel, the adjusting rod moves inside the connecting shaft and drives the third connecting rod, while the second connecting rod slides in the sliding groove, and with the support of the first connecting rod, the arc-shaped plate is expanded or contracted.

[0008] Preferably, the outward expansion clamping assembly further includes guide grooves, and multiple guide grooves are provided, which are equidistantly opened on the outer wall of the adjusting rod; multiple guide strips are provided, which are equidistantly arranged on the inner wall of the connecting shaft and are connected to the inner wall of the guide grooves; wherein, the guide grooves and guide strips limit and guide the adjusting rod during its movement to prevent the adjusting rod from deflecting.

[0009] Preferably, the position adjustment assembly includes two slide rails, which are fixedly connected to the top two sides of the base respectively; a first slide block is installed on the bottom two sides of the first movable seat and is movably connected to the outer wall of the slide rail; two second bearing seats are fixedly connected to the top of the base on both sides of the first movable seat respectively; a threaded screw is installed on the inner wall of the second bearing seat and its outer wall is threadedly connected to the inner wall of the first movable seat; a first servo motor is installed on the top of the base away from the fixed seat and its output end is driven by the threaded screw; wherein, the first slide block supports the first movable seat on the top of the slide rail, and by controlling the first servo motor to drive the threaded screw to rotate, the first movable seat is moved, thereby adjusting the distance between the fixed seat and the first movable seat.

[0010] Preferably, the position sensing component includes a first laser ranging sensor, which is installed on one side of the outer wall of the fixed base; the target plate is fixedly connected to one side of the outer wall of the first movable base; wherein, the first laser ranging sensor emits a laser beam to the target plate and transmits the data to the control system, so that the control system can automatically control the start, stop and direction of the first servo motor according to the preset pipe length parameters.

[0011] Preferably, the limiting component includes a baffle, which is fixedly connected to the outer wall of the connecting shaft and located on the side where the first bearing seat and the arc plate are close to each other; multiple reinforcing plates are provided and are fixedly connected at equal intervals to the side of the baffle away from the arc plate; wherein, the baffle limits the two ends of the pipe when the pipe is fixed, and the reinforcing plates can enhance the strength and stability of the baffle and prevent the baffle from deforming or being damaged during the fixing and rotation of the pipe.

[0012] Preferably, the power unit includes a second servo motor, which is disposed on one side of the fixed base; a reducer is disposed on one side of the fixed base, and its input end is connected to the second servo motor; two pulleys are disposed, which are respectively fixedly connected to the outer wall of the connecting shaft and the output end of the reducer; multiple belts are disposed, which are connected to the outer walls of the two pulleys; an electro-hydraulic brake is respectively fixedly connected to the top of the fixed base and the first movable base, and its output end is connected to the outer wall of the connecting shaft; wherein, the second servo motor transmits power through the reducer and drives the connecting shaft to rotate through the pulleys and belts, providing rotational power to the pipe fitting, and the electro-hydraulic brake is used to brake the connecting shaft when needed.

[0013] Preferably, the lifting support assembly includes a second movable seat, which is located on one side of the fixed seat and the first movable seat that are close to each other; a second slide block is equidistantly installed on both sides of the bottom of the second movable seat, and its inner wall is fitted to the outer wall of the slide rail; a screw jack is installed inside the second movable seat; a lifting platform is fixedly connected to the top of the output end of the screw jack; two sets of support wheels are provided, which are rotatably connected to both sides of the top of the lifting platform; multiple guide rods are provided, which are equidistantly fixedly connected to both sides of the bottom of the lifting platform, and their outer walls are fitted to the inner wall of the second movable seat; wherein, the support wheels on the top of the second movable seat support the pipe fitting, and the lifting platform and support wheels are driven to move up and down by controlling the motor of the screw jack, and the guide rods guide and limit the movement during the lifting process of the lifting platform.

[0014] Preferably, a second laser rangefinder is installed on the top of the second movable seat, and the second laser rangefinder is connected in conjunction with the lifting platform. Beneficial effects

[0015] This invention provides an automatic rotating fixture for plasma spraying. It offers the following advantages: Through the cooperation of a base, a fixed seat, a first movable seat, a pipe fixing assembly, a power unit, and a lifting support assembly, the control system adjusts the pipe to a suitable height based on its size and length, and adjusts the position of the first movable seat. This allows the pipe fixing assembly to provide internal support and fixation at both ends of the pipe, preventing blind spots on the outside of the pipe. It can also accommodate pipes of different lengths and diameters. The power unit drives the pipe to rotate at a uniform speed, ensuring the plasma spray gun evenly covers the pipe surface, eliminating the need for secondary spraying and reducing worker workload. This ensures the stability and consistency of the plasma coating quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the appearance of the present invention; Figure 3 This is a schematic diagram showing the external appearance of the fixed base, connecting shaft, and arc plate in this invention; Figure 4 This is a schematic diagram showing the external appearance of the first movable seat, the first bearing seat, and the electro-hydraulic brake in this invention. Figure 5 This is a schematic diagram showing the external appearance of the second movable seat, lifting platform, and support wheels in this invention; Figure 6 for Figure 1 A magnified view of a portion of region A in the middle; Figure 7 for Figure 1 A magnified view of a portion of region B in the middle; Figure 8 for Figure 1 A magnified view of a portion of region C in the middle; Figure 9 for Figure 2 A magnified view of a portion of region D.

[0017] Figure Descriptions: 1. Base; 2. Fixed seat; 3. First movable seat; 4. Pipe fixing assembly; 5. Power unit; 6. Lifting support assembly; 41. First bearing seat; 42. Connecting shaft; 43. Arc plate; 44. Outward expansion and clamping assembly; 45. Position adjustment assembly; 46. Position sensing assembly; 47. Limiting assembly; 441. Adjusting rod; 442. First connecting rod; 443. Second connecting rod; 444. Third connecting rod; 445. Slide groove; 446. Adjusting screw; 447. Rocker wheel; 448. Guide groove; 449. Guide. 451. Slide rail; 452. First slide block; 453. Second bearing seat; 454. Threaded screw; 455. First servo motor; 461. First laser rangefinder; 462. Target plate; 471. Baffle; 472. Reinforcing plate; 51. Second servo motor; 52. Reducer; 53. Pulley; 54. Belt; 55. Electro-hydraulic brake; 61. Second moving seat; 62. Second slide block; 63. Screw jack; 64. Lifting platform; 65. Support wheel; 66. Guide rod; 67. Second laser rangefinder. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0020] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0021] When performing plasma spraying on tubular components, traditional tooling fixtures are used to fix the components to the outside, which prevents the components from rotating. This results in blind spots at the tooling fixtures, requiring secondary spraying. This can easily lead to some areas having coatings that are too thick or too thin, increasing the labor intensity of workers and making it difficult to ensure the stability and consistency of coating quality.

[0022] In view of this, the present invention provides an automatic rotating plasma spraying fixture. Through the cooperation of the base, fixed seat, first moving seat, pipe fixing assembly, power unit and lifting support assembly, the control system adjusts the pipe to a suitable height according to the size and length of the pipe, and adjusts the position of the first moving seat so that the pipe fixing assembly provides internal support and fixation on the inner sides of both ends of the pipe, avoiding the formation of spraying blind spots on the outer side of the pipe. It can adapt to fixing pipes of different lengths and diameters. The power unit drives the pipe to rotate at a uniform speed, so that the spraying trajectory of the plasma spray gun evenly covers the surface of the pipe, eliminating the need for secondary spraying, reducing the labor intensity of workers, and ensuring the stability and consistency of coating quality.

[0023] Depend on Figure 1-9 As can be seen, the automatic rotary plasma spraying fixture in this case includes a base 1, a fixed seat 2 fixedly connected to one side of the top of the base 1, and a first movable seat 3 provided on the side of the top of the base 1 away from the fixed seat 2. The automatic rotary plasma spraying fixture also includes a pipe fixing assembly 4, a power unit 5, and a lifting support assembly 6. The pipe fixing assembly 4 is located on the top of the fixed seat 2 and the first movable seat 3; the power unit 5 is located on the side of the top of the fixed seat 2 away from the first movable seat 3; and the lifting support assembly 6 is located on the side of the fixed seat 2 and the first movable seat 3 close to each other. The pipe fixing assembly 4 supports and fixes the pipe on the inner sides of both ends and can adapt to different lengths and inner diameters. The power unit 5 provides the necessary power support for the rotation of the pipe. The lifting support assembly 6 supports and adjusts the height of the pipe before it is fixed.

[0024] In the specific implementation process, it is worth noting that the base 1 supports the fixed base 2 and the first movable base 3. By moving the first movable base 3, the pipe fixing assembly 4, located on top of the fixed base 2 and the first movable base 3, is supported and fixed on the inner sides of both ends of the pipe, avoiding blind spots on the outer side of the pipe and eliminating the need for secondary spraying. Simultaneously, the power unit 5 provides power for the rotation of the pipe, ensuring uniform rotation during plasma spraying and preventing areas from having excessively thick or thin coatings. The rotation speed of the pipe can be set according to the pipe size and actual spraying requirements, ensuring the coating reaches the required thickness and is uniform, improving the stability and reliability of the coating quality. The lifting support assembly 6 supports and adjusts the height of the pipe before fixing, ensuring the pipe is at a suitable height and stable state during installation. To ensure smooth subsequent plasma spraying operations and to support the pipe after plasma spraying, the pipe fixing assembly 4 is released from its fixation, allowing for stable removal of the pipe. Through the cooperation of the base 1, fixing seat 2, first moving seat 3, pipe fixing assembly 4, power unit 5, and lifting support assembly 6, the control system adjusts the pipe to a suitable height according to its size and length, and adjusts the position of the first moving seat 3, so that the pipe fixing assembly 4 provides internal support and fixation on the inner sides of both ends of the pipe, avoiding the formation of spraying blind spots on the outer side of the pipe. This system can accommodate pipes of different lengths and diameters. The power unit 5 drives the pipe to rotate at a uniform speed, ensuring that the plasma spray gun's spray trajectory evenly covers the surface of the pipe, eliminating the need for secondary spraying, reducing the labor intensity of workers, and ensuring the stability and consistency of coating quality.

[0025] In one feasible embodiment, the pipe fixing assembly 4 includes a first bearing seat 41, a connecting shaft 42, an arc-shaped plate 43, an outward expansion clamping assembly 44, a position adjusting assembly 45, a position sensing assembly 46, and a limiting assembly 47. Two first bearing seats 41 are provided, respectively fixedly connected to the top of the fixed seat 2 and the first movable seat 3 on their adjacent sides. The connecting shaft 42 is rotatably connected to the inner wall of the first bearing seat 41. Multiple arc-shaped plates 43 are provided, equidistantly arranged on the outer side of the connecting shaft 42. The outward expansion clamping assembly 44 is located on the adjacent sides of the connecting shaft 42 and the arc-shaped plates 43. On one side; the position adjustment component 45 is disposed at the bottom of the first movable seat 3; the position sensing component 46 is disposed on one side of the outer wall of the fixed seat 2; the limiting component 47 is disposed on the outer wall of the connecting shaft 42; wherein, the first bearing seat 41 positions and supports the connecting shaft 42, the outward expansion and pressing component 44 performs an outward expansion and pressing operation on the arc plate 43, so that the arc plate 43 presses against the inner wall of the pipe, the outward expansion and pressing component 44 and the position sensing component 46 adjust and sense the position of the first movable seat 3 in order to adapt to pipes of different lengths, and the limiting component 47 limits the end of the pipe.

[0026] In the specific implementation process, it is worth noting that through the cooperation between the fixed seat 2, the first movable seat 3, the first bearing seat 41, the connecting shaft 42, the arc plate 43, and the outward expansion and clamping assembly 44, the connecting shaft 42 is installed on the top of the fixed seat 2 and the first movable seat 3 via the first bearing seat 41. The outward expansion and clamping assembly 44 performs an outward expansion and clamping operation on the arc plate 43, so that the arc plate 43 clamps and fixes the two ends of the inner wall of the pipe fitting. Furthermore, the outer wall of the arc plate 43 is covered with a rubber material layer with a high coefficient of friction, which effectively increases the friction between the arc plate 43 and the inner wall of the pipe fitting, preventing friction from occurring when the pipe fitting rotates. In case of slippage during the process, to ensure the stability of pipe fixing and rotation, the first moving seat 3 is moved by the position adjustment component 45 through the cooperation between the base 1, the first moving seat 3, the position adjustment component 45 and the position sensing component 46, adjusting the distance between the fixed seat 2 and the first moving seat 3. The position sensing component 46 senses the distance between the fixed seat 2 and the first moving seat 3 so that the control system can automatically adjust the position of the first moving seat 3 to adapt to the fixing requirements of pipes of different lengths. The limiting component 47 limits the end of the pipe to ensure the stability and reliability of pipe fixing.

[0027] In one feasible embodiment, the outwardly expanding clamping assembly 44 includes an adjusting rod 441, a first connecting rod 442, a second connecting rod 443, a third connecting rod 444, a sliding groove 445, an adjusting screw 446, and a rocker wheel 447. The adjusting rod 441 is fitted to the inner wall of the connecting shaft 42. The first connecting rod 442 is rotatably connected to the inner side of one end of the arc-shaped plate 43 near the first bearing seat 41, and the other end is rotatably connected to the outer wall of the connecting shaft 42. The second connecting rod 443 is rotatably connected to the inner side of one end of the arc-shaped plate 43 near the first bearing seat 41. The third connecting rod 444 is rotatably connected to the inner side of one end of the arc-shaped plate 43 away from the first bearing seat 41, and the other end is rotatably connected to the outer wall of the adjusting rod 441. The sliding groove 445... Multiple components 45 are provided, equidistantly distributed outside the connecting shaft 42, and their inner walls are connected to the end of the second connecting rod 443 away from the arc plate 43; the adjusting screw 446 is rotatably connected to the end of the connecting shaft 42 away from the third connecting rod 444, and its outer wall is threaded to the inner wall of the adjusting rod 441; the rocker wheel 447 is fixedly connected to the end of the adjusting screw 446 away from the third connecting rod 444; wherein, by rotating the adjusting screw 446 through the rocker wheel 447, the adjusting rod 441 moves inside the connecting shaft 42, and drives the third connecting rod 444, while the second connecting rod 443 slides in the slide groove 445, and with the support of the first connecting rod 442, the arc plate 43 is expanded or contracted.

[0028] In the specific implementation process, it is worth noting that through the cooperation between the connecting shaft 42, the arc plate 43, the adjusting rod 441, the first connecting rod 442, the second connecting rod 443, the third connecting rod 444, the slide groove 445, the adjusting screw 446, and the rocker wheel 447, rotating the rocker wheel 447 drives the adjusting screw 446 to rotate. Since the adjusting screw 446 is threadedly connected to the adjusting rod 441, the adjusting rod 441 moves linearly inside the connecting shaft 42. When the adjusting rod 441 moves, it drives the third connecting rod 444. As the angle changes, the second connecting rod 443 slides within the groove 445. With the support of the first connecting rod 442, the distance between the arc plate 43 and the connecting shaft 42 is adjusted, enabling the arc plate 43 to expand or contract. This allows for the tightening or loosening of the inner wall of the pipe fitting. After the arc plate 43 is initially tightened against the inner wall of the pipe fitting, the position of the arc plate 43 can be further fine-tuned by inserting a pry bar or other auxiliary tools into the hole of the rocker wheel 447 and rotating it, ensuring a tight fit between the arc plate 43 and the inner wall of the pipe fitting.

[0029] In one feasible embodiment, the outwardly expanding clamping assembly 44 further includes guide grooves 448 and guide bars 449. Multiple guide grooves 448 are provided and are equidistantly opened on the outer wall of the adjusting rod 441. Multiple guide bars 449 are provided and are equidistantly arranged on the inner wall of the connecting shaft 42, and are connected to the inner wall of the guide grooves 448. The guide grooves 448 and guide bars 449 limit and guide the adjusting rod 441 during its movement to prevent the adjusting rod 441 from deflecting.

[0030] In the specific implementation process, it is worth noting that through the cooperation between the connecting shaft 42, the adjusting rod 441, the guide groove 448 and the guide bar 449, when the adjusting rod 441 moves, the guide groove 448 and the guide bar 449 limit and guide it, preventing the adjusting rod 441 from deflecting inside the connecting shaft 42, ensuring that the adjusting rod 441 can move smoothly and linearly, thereby ensuring that the arc plate 43 accurately and reliably abuts against the inner wall of the pipe fitting, and improving the fixing stability of the pipe fitting.

[0031] In one feasible embodiment, the position adjustment assembly 45 includes a slide rail 451, a first slide block 452, a second bearing seat 453, a threaded screw 454, and a first servo motor 455. Two slide rails 451 are provided, respectively fixedly connected to the top two sides of the base 1. The first slide block 452 is installed on the bottom two sides of the first movable seat 3 and movably connected to the outer wall of the slide rail 451. Two second bearing seats 453 are provided, respectively fixedly connected to the top of the base 1 on both sides of the first movable seat 3. The threaded screw 454 is installed on the inner wall of the second bearing seat 453, and its outer wall is threadedly connected to the inner wall of the first movable seat 3. The first servo motor 455 is installed on the top of the base 1 away from the fixed seat 2, and its output end is drivenly connected to the threaded screw 454. The first slide block 452 supports the first movable seat 3 on the top of the slide rail 451. By controlling the first servo motor 455 to drive the threaded screw 454 to rotate, the first movable seat 3 is moved, thereby adjusting the distance between the fixed seat 2 and the first movable seat 3.

[0032] In the specific implementation process, it is worth noting that, through the cooperation between the base 1, the first movable seat 3, the slide rail 451, and the first sliding block 452, the first sliding block 452 slides on the slide rail 451, providing stable support for the first movable seat 3 and ensuring that the first movable seat 3 will not shift or shake during movement. Through the cooperation between the base 1, the first movable seat 3, the slide rail 451, the first sliding block 452, the second bearing seat 453, the threaded screw 454, and the first servo motor 455, the control system controls the first servo motor 455 according to the preset pipe length, driving the threaded screw 454 to move. The rotation drives the first movable seat 3 to move smoothly on the slide rail 451, ensuring the accuracy and stability of the movement of the first movable seat 3. This allows for accurate adjustment of the distance between the fixed seat 2 and the first movable seat 3, enabling the arc plate 43 to be inserted or removed from both ends of the pipe fitting to accommodate pipe fittings of different lengths. The output end of the first servo motor 455 is equipped with a reducer to reduce the speed of the first servo motor 455 and increase the torque, ensuring that the threaded screw 454 can drive the first movable seat 3 to move smoothly and powerfully. The specific model of the first servo motor 455 is not limited, as long as it meets the usage requirements.

[0033] In one feasible embodiment, the position sensing component 46 includes a first laser rangefinder 461 and a target plate 462. The first laser rangefinder 461 is mounted on one side of the outer wall of the fixed base 2; the target plate 462 is fixedly connected to one side of the outer wall of the first movable base 3. The first laser rangefinder 461 emits a laser beam to the target plate 462 and transmits the data to the control system, so that the control system can automatically control the start, stop and turn of the first servo motor 455 according to the preset pipe length parameters.

[0034] In the specific implementation process, it is worth noting that through the cooperation between the fixed base 2, the first movable base 3, the first laser rangefinder 461 and the target plate 462, the first laser rangefinder 461 emits a laser beam to the target plate 462 and transmits the data to the control system, so that the control system can monitor the distance between the fixed base 2 and the first movable base 3 in real time, and automatically adjust the start, stop and rotation direction of the first servo motor 455 according to the preset pipe length parameters and operating requirements. The specific model of the first laser rangefinder 461 is not limited, as long as it meets the usage requirements.

[0035] In one feasible embodiment, the limiting assembly 47 includes a baffle 471 and a reinforcing plate 472. The baffle 471 is fixedly connected to the outer wall of the connecting shaft 42 and is located on the side where the first bearing seat 41 and the arc plate 43 are close to each other. Multiple reinforcing plates 472 are provided and are fixedly connected at equal intervals to the side of the baffle 471 away from the arc plate 43. The baffle 471 limits the two ends of the pipe when the pipe is fixed, and the reinforcing plate 472 can enhance the strength and stability of the baffle 471 and prevent the baffle 471 from deforming or being damaged during the fixing and rotation of the pipe.

[0036] In the specific implementation process, it is worth noting that through the cooperation between the connecting shaft 42, the baffle 471 and the reinforcing plate 472, the baffle 471 is set at a specific position on the connecting shaft 42. When the arc plate 43 is inserted into the pipe, the baffle 471 limits the end of the pipe to ensure that the arc plate 43 can be fully inserted into both ends of the pipe, so that the arc plate 43 can fully press against the inner wall of the pipe. The reinforcing plate 472 is used to improve the strength and stability of the baffle 471 and prevent the baffle 471 from deforming or even being damaged due to excessive local stress.

[0037] In one feasible embodiment, the power unit 5 includes a second servo motor 51, a reducer 52, pulleys 53, belts 54, and an electro-hydraulic brake 55. The second servo motor 51 is disposed on one side of the fixed base 2; the reducer 52 is disposed on one side of the fixed base 2, and its input end is connected to the second servo motor 51; two pulleys 53 are disposed, respectively fixedly connected to the outer wall of the connecting shaft 42 and the output end of the reducer 52; multiple belts 54 are disposed, cooperating with the outer wall of the two pulleys 53; the electro-hydraulic brake 55 is respectively fixedly connected to the top of the fixed base 2 and the first movable base 3, and its output end is cooperating with the outer wall of the connecting shaft 42; wherein, the second servo motor 51 transmits power through the reducer 52 and drives the connecting shaft 42 to rotate through the pulleys 53 and belts 54, providing rotational power to the pipe fitting, and the electro-hydraulic brake 55 is used to brake the connecting shaft 42 when needed.

[0038] In the specific implementation process, it is worth noting that, through the cooperation between the fixed base 2, the connecting shaft 42, the second servo motor 51, the reducer 52, the pulley 53, and the belt 54, the second servo motor 51 provides power for the rotation of the pipe fitting. The output power of the second servo motor 51 is appropriately adjusted by the reducer 52, and then transmitted to the connecting shaft 42 through the pulley 53 and the belt 54, so that the connecting shaft 42 drives the pipe fitting to rotate at a uniform speed. The electro-hydraulic brake 55 is used to reliably brake the connecting shaft 42 when the pipe fitting is installed or the spraying operation is completed, so that the connecting shaft 42 remains stationary, so as to install or remove the pipe fitting. The specific models of the second servo motor 51 and the electro-hydraulic brake 55 are not limited, as long as they meet the usage requirements.

[0039] In one feasible embodiment, the lifting support assembly 6 includes a second movable seat 61, a second slide 62, a screw jack 63, a lifting platform 64, support wheels 65, and guide rods 66. The second movable seat 61 is disposed on one side of the fixed seat 2 and the first movable seat 3 that are close to each other. The second slide 62 is equidistantly installed on both sides of the bottom of the second movable seat 61, and its inner wall is fitted to the outer wall of the slide rail 451. The screw jack 63 is installed inside the second movable seat 61. The lifting platform 64 is fixedly connected to the screw jack. The top of the output end of 63; two sets of support wheels 65 are provided, which are rotatably connected to the top two sides of the lifting platform 64 respectively; multiple guide rods 66 are provided, which are equidistantly fixed to the bottom two sides of the lifting platform 64, and the outer wall is connected to the inner wall of the second movable seat 61; wherein, the support wheels 65 at the top of the second movable seat 61 support the pipe fitting, and the lifting platform 64 and the support wheels 65 are driven to move up and down by controlling the motor of the screw jack 63, and the guide rods 66 guide and limit the lifting platform 64 during the lifting process.

[0040] In the specific implementation process, it is worth noting that, through the cooperation between the base 1, the slide rail 451, the second movable seat 61, and the second sliding seat 62, the second movable seat 61 is set between the fixed seat 2 and the first movable seat 3, and the second sliding seat 62 is movably connected to the slide rail 451, so that the second movable seat 61 can move smoothly along the slide rail 451 to adapt to the support requirements of pipe fittings of different lengths. Through the cooperation between the base 1, the slide rail 451, the second movable seat 61, the second sliding seat 62, the screw jack 63, the lifting platform 64, the support wheel 65, and the guide rod 66, when it is necessary to install and fix the pipe fitting, the pipe fitting is hoisted to the top of the second movable seat 61 by the hoisting equipment. According to the length of the pipe fitting, the second movable seat 61 is moved to a suitable position below the pipe fitting, and the pipe fitting is placed on top of the support wheel 65. The support wheel 65 supports the pipe fitting. The control system automatically controls the screw jack 63 according to the size of the pipe fitting, drives the lifting platform 64 and the pipe fitting to move vertically, so that the pipe fitting is adjusted to a suitable height for subsequent fixing.

[0041] In one possible implementation, a second laser rangefinder 67 is mounted on the top of the second movable seat 61, and the second laser rangefinder 67 is connected in cooperation with the lifting platform 64.

[0042] In the specific implementation process, it is worth noting that the second laser rangefinder 67 accurately measures the real-time height of the lifting platform 64 and transmits the measurement data to the control system in real time. The control system compares and analyzes the received data with the preset pipe installation height parameters and automatically adjusts the operating status of the screw jack 63 to ensure that the lifting platform 64 can drive the pipe to accurately reach the designated height position.

[0043] Working principle: The dimensions and length of the pipe fitting are input into the control system of the rotating fixture. The pipe fitting is hoisted above the second movable seat 61 using a hoisting device. The second movable seat 61 is moved to directly below the center of the pipe fitting, and the pipe fitting is placed on top of the support wheels 65, allowing the two sets of support wheels 65 to support the pipe fitting. The control system controls the motor of the screw jack 63 to operate, driving the lifting platform 64 and the support wheels 65 to lift the pipe fitting. The second laser rangefinder 67 measures the height data of the lifting platform 64 in real time and transmits it to the control system. After the axis of the pipe fitting coincides with the axis of the connecting shaft 42, the control system... The screw jack 63 automatically stops operating, and the second movable seat 61 moves closer to the fixed seat 2, so that the end of the pipe fitting is fitted onto the outside of the arc plate 43. The control system controls the first servo motor 455 to drive the screw jack 454 to rotate, causing the first movable seat 61 to move closer to the fixed seat 2. Simultaneously, the first laser rangefinder 461 measures the position of the first movable seat 3 in real time and transmits the data to the control system. After the arc plate 43 installed on the first movable seat 3 is inserted into the other end of the pipe fitting, the control system automatically stops the first servo motor 455 and rotates the rocker wheel 447, causing the arc plate 61 to move closer to the fixed seat 2. The forming plate 43 expands outward and abuts against the inner wall of the pipe, providing support and fixation for both ends of the pipe. The control system controls the screw jack 63 to separate the support wheel 65 from the pipe and controls the electro-hydraulic brake 55 to release the limit on the connecting shaft 42. The control system then starts the second servo motor 51, using pulley 53 and belt 54 to drive the connecting shaft 42 to rotate, causing the pipe to rotate at a uniform speed. Subsequently, plasma spraying treatment can be performed on the outer wall of the pipe. After the plasma spraying treatment of the pipe is completed, the control system stops the second servo motor 51 and controls the electro-hydraulic brake 55 to stop the connecting shaft 42. Braking is applied to quickly stop the pipe from rotating. The control system automatically controls the screw jack 63 to support the pipe with the support wheel 65. The rocker wheel 447 is manually rotated to release the arc plate 43 from its clamping and fixing position on the pipe. The control system controls the first servo motor 455 to move the first moving seat 3 away from the fixed seat 2, moving the arc plate 43 out of the pipe. The second moving seat 61 is moved to detach the pipe from the outside of the arc plate 43 located on the fixed seat 2. Then, the pipe that has undergone plasma spraying is lifted off the rotating fixture using hoisting equipment, thus completing the plasma spraying treatment of the pipe.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic rotary fixture for plasma spraying, comprising a base (1), characterized in that: A fixed seat (2) is fixedly connected to one side of the top of the base (1), and a first movable seat (3) is provided on the side of the top of the base (1) away from the fixed seat (2). The automatic rotary tooling for plasma spraying also includes: a pipe fixing assembly (4) provided on the top of the fixed seat (2) and the first movable seat (3); a power unit (5) provided on the side of the top of the fixed seat (2) away from the first movable seat (3); and a lifting support assembly (6) provided on the side of the fixed seat (2) and the first movable seat (3) close to each other. The pipe fixing assembly (4) supports and fixes the pipe on the inner sides of both ends and can adapt to different lengths and inner diameters. The power unit (5) provides the necessary power support for the rotation of the pipe. The lifting support assembly (6) supports and adjusts the height of the pipe before it is fixed.

2. The automatic rotary fixture for plasma spraying according to claim 1, characterized in that: The pipe fixing assembly (4) includes: two first bearing seats (41), which are fixedly connected to the top of the fixed seat (2) and the first movable seat (3) on the side close to each other; a connecting shaft (42), which is rotatably connected to the inner wall of the first bearing seat (41); multiple arc plates (43), which are equidistantly arranged on the outside of the connecting shaft (42); an outward expansion and pressing assembly (44), which is arranged on the side close to each other of the connecting shaft (42) and the arc plate (43); a position adjustment assembly (45), which is arranged at the bottom of the first movable seat (3); a position sensing assembly (46), which is arranged on the outer wall of the fixed seat (2); and a limiting assembly (47), which is arranged on the outer wall of the connecting shaft (42). The first bearing seat (41) positions and supports the connecting shaft (42), the outward expansion and clamping assembly (44) performs an outward expansion and clamping operation on the arc plate (43) so that the arc plate (43) clamps against the inner wall of the pipe, the outward expansion and clamping assembly (44) and the position sensing assembly (46) adjust and sense the position of the first moving seat (3) so as to adapt to pipes of different lengths, and the limiting assembly (47) limits the end of the pipe.

3. The automatic rotary fixture for plasma spraying according to claim 2, characterized in that: The outward expansion and clamping assembly (44) includes: an adjusting rod (441) fitted to the inner wall of the connecting shaft (42); a first connecting rod (442) rotatably connected to the inner side of one end of the arc-shaped plate (43) near the first bearing seat (41), and the other end rotatably connected to the outer wall of the connecting shaft (42); a second connecting rod (443) rotatably connected to the inner side of one end of the arc-shaped plate (43) near the first bearing seat (41); and a third connecting rod (444) rotatably connected to the inner side of one end of the arc-shaped plate (43) away from the first bearing seat (41). The other end is rotatably connected to the outer wall of the adjusting rod (441); multiple sliding grooves (445) are provided, equidistantly distributed on the outside of the connecting shaft (42), and the inner wall is connected to the end of the second connecting rod (443) away from the arc plate (43); the adjusting screw (446) is rotatably connected to the end of the connecting shaft (42) away from the third connecting rod (444), and the outer wall is threaded to the inner wall of the adjusting rod (441); the rocker wheel (447) is fixedly connected to the end of the adjusting screw (446) away from the third connecting rod (444); The adjusting screw (446) is rotated by the rocker wheel (447), causing the adjusting rod (441) to move inside the connecting shaft (42) and drive the third connecting rod (444). At the same time, the second connecting rod (443) slides in the groove (445), and with the support of the first connecting rod (442), the arc plate (43) is expanded or contracted.

4. The automatic rotary fixture for plasma spraying according to claim 3, characterized in that: The outward expansion clamping assembly (44) further includes: a guide groove (448), which is provided in multiple locations and is equidistantly opened on the outer wall of the adjusting rod (441); and a guide strip (449), which is provided in multiple locations and is equidistantly arranged on the inner wall of the connecting shaft (42) and is connected to the inner wall of the guide groove (448). The guide groove (448) and guide bar (449) limit and guide the movement of the adjusting rod (441) to prevent the adjusting rod (441) from deflecting.

5. The automatic rotary fixture for plasma spraying according to claim 4, characterized in that: The position adjustment assembly (45) includes: two slide rails (451), which are fixedly connected to the top two sides of the base (1); a first slide block (452), which is installed on the bottom two sides of the first movable seat (3) and is movably connected to the outer wall of the slide rail (451); two second bearing seats (453), which are fixedly connected to the top of the base (1) on both sides of the first movable seat (3); a threaded screw (454), which is installed on the inner wall of the second bearing seat (453) and whose outer wall is threadedly connected to the inner wall of the first movable seat (3); and a first servo motor (455), which is installed on the top side of the base (1) away from the fixed seat (2) and whose output end is drivenly connected to the threaded screw (454). The first slide (452) supports the first movable seat (3) on the top of the slide rail (451). By controlling the first servo motor (455) to drive the threaded screw (454) to rotate, the first movable seat (3) is moved, thereby adjusting the distance between the fixed seat (2) and the first movable seat (3).

6. The automatic rotary fixture for plasma spraying according to claim 5, characterized in that: The position sensing component (46) includes: a first laser rangefinder (461), which is installed on one side of the outer wall of the fixed base (2); and a target plate (462), which is fixedly connected to one side of the outer wall of the first movable base (3). The first laser rangefinder (461) emits a laser beam to the target plate (462) and transmits the data to the control system, so that the control system can automatically control the start, stop and turn of the first servo motor (455) according to the preset pipe length parameters.

7. The automatic rotary fixture for plasma spraying according to claim 6, characterized in that: The limiting component (47) includes: a baffle (471), which is fixedly connected to the outer wall of the connecting shaft (42) and located on the side where the first bearing seat (41) and the arc plate (43) are close to each other; and a reinforcing plate (472), which is provided in multiples and is fixedly connected at equal intervals to the side of the baffle (471) away from the arc plate (43). The baffle (471) limits the two ends of the pipe fitting when the pipe fitting is fixed, and the reinforcing plate (472) can enhance the strength and stability of the baffle (471) and prevent the baffle (471) from deforming or being damaged during the fixing and rotation of the pipe fitting.

8. The automatic rotary fixture for plasma spraying according to claim 7, characterized in that: The power unit (5) includes: a second servo motor (51) disposed on one side of the fixed base (2); a reducer (52) disposed on one side of the fixed base (2) and its input end is connected to the second servo motor (51); two pulleys (53) are disposed and fixedly connected to the outer wall of the output end of the connecting shaft (42) and the reducer (52) respectively; multiple belts (54) are disposed and are connected to the outer wall of the two pulleys (53); and an electro-hydraulic brake (55) is fixedly connected to the top of the fixed base (2) and the first moving base (3) respectively and its output end is connected to the outer wall of the connecting shaft (42). The second servo motor (51) transmits power through the reducer (52) and drives the connecting shaft (42) to rotate through the pulley (53) and belt (54) to provide rotational power for the pipe fitting. The electro-hydraulic brake (55) is used to brake the connecting shaft (42) when needed.

9. The automatic rotary fixture for plasma spraying according to claim 8, characterized in that: The lifting support assembly (6) includes: a second movable seat (61), which is disposed on the side of the fixed seat (2) and the first movable seat (3) that are close to each other; a second slide (62), which is equidistantly installed on both sides of the bottom of the second movable seat (61), and whose inner wall is connected to the outer wall of the slide rail (451); a screw jack (63), which is installed inside the second movable seat (61); a lifting platform (64), which is fixedly connected to the top of the output end of the screw jack (63); two sets of support wheels (65), which are rotatably connected to the top sides of the lifting platform (64); and multiple guide rods (66), which are equidistantly fixedly connected to both sides of the bottom of the lifting platform (64), and whose outer wall is connected to the inner wall of the second movable seat (61). The second movable seat (61) has a support wheel (65) on top that supports the pipe fitting. The motor of the screw jack (63) is controlled to drive the lifting platform (64) and the support wheel (65) to move up and down. The guide rod (66) guides and limits the lifting platform (64) during its lifting process.

10. The automatic rotary fixture for plasma spraying according to claim 9, characterized in that: A second laser rangefinder (67) is installed on the top of the second movable seat (61), and the second laser rangefinder (67) is connected to the lifting platform (64).

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