Plasma spraying equipment capable of accurately controlling coating thickness

Abstract

The utility model relates to the technical field of plasma spraying, and discloses plasma spraying equipment capable of accurately controlling the thickness of a coating, the plasma spraying equipment comprises a spraying equipment body, and the upper surface of the spraying equipment body is fixedly connected with a supporting plate. According to the plasma spraying equipment capable of accurately controlling the thickness of the coating, by arranging the laser range finder, the control precision of the thickness of the coating is remarkably improved, errors caused by manual operation errors are effectively reduced, and therefore the quality and consistency of final products are remarkably improved; through a threaded connection structure formed by combining a threaded cylinder and a spray head, the function of rapidly replacing different spray heads is achieved, the diversified requirements on the market are met, and in order to further improve the performance of equipment, key components such as a servo motor, a bearing, a threaded shaft and a screw sleeve are arranged to be matched with one another, so that the practicability is high. And effective cost control is realized while high-efficiency operation of the equipment is ensured.

Description

Technical Field

[0001] This application relates to the field of plasma spraying technology, specifically to a plasma spraying device that can precisely control the coating thickness. Background Technology

[0002] Currently, in industrial production, spraying technology is frequently used to form a protective layer on the surface of a substrate in order to improve the corrosion resistance and wear resistance of products. Plasma spraying, as a highly efficient thermal spraying technology, can achieve molten spraying of various materials such as metals and ceramics due to its high-temperature characteristics, and is widely used in industries such as aerospace and automotive manufacturing.

[0003] A prior patent (publication number: CN214400680U) discloses a plasma spraying device, including a spraying device body. The spraying device body includes an upward-opening spray box, a nozzle located inside the spray box, and a plasma spray gun. A matching cover is provided at the opening of the spray box, and support rods are provided at the bottom corners of the spray box. The nozzle is connected to the cover via a pipe. Mounting holes are provided on the side wall of the spray box, and the plasma spray gun is fixed to the inner side wall of the spray box through a through-hole. A through-hole allowing a base plate to pass through is provided at the center of the bottom wall of the spray box. The thickness of the base plate is greater than the thickness of the bottom wall of the spray box. The top surface of the base plate is used to place implants, and the bottom surface of the base plate is connected to the output end of a stepper motor. The bottom end of the stepper motor is fixed to the top surface of a height adjustment device. This invention effectively improves spraying efficiency, eliminates the need for frequent workpiece movement, reduces the risk of internal dust diffusion, and minimizes pollution to the external environment and harm to workers.

[0004] The aforementioned comparative documents demonstrate that a stepper motor can be used to rotate the workpiece on the base plate, thereby accelerating the spraying speed of the workpiece, greatly reducing the frequency of workpiece movement, and improving spraying efficiency. However, the plasma spraying equipment in the aforementioned patents is difficult to achieve precise control of coating thickness, resulting in unstable product quality and low production efficiency. In addition, the spray head in the aforementioned patents cannot be quickly replaced, making it inconvenient to flexibly select the appropriate nozzle diameter according to different materials and process requirements, and making it difficult to meet the diversified needs of the market. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a plasma spraying device that can precisely control coating thickness, which has advantages such as easy and quick nozzle replacement and improved control accuracy of coating thickness, thus solving the problems.

[0006] To achieve the above objectives, this application provides the following technical solution: a plasma spraying device capable of precisely controlling coating thickness, comprising a spraying device body, a support plate fixedly connected to the upper surface of the spraying device body, a spraying chamber fixedly connected to the upper surface of the support plate, a servo motor fixedly mounted on the upper surface of the spraying chamber, bearings fixedly embedded in the inner top wall and inner bottom wall of the spraying chamber, a threaded shaft fixedly connected to the inner rings of the two bearings, the top end of the threaded shaft fixedly connected to the output end of the servo motor, a threaded sleeve threadedly connected to the outer surface of the threaded shaft, a limit groove formed in the inner wall of the spraying chamber, a limit block slidably connected inside the limit groove, the front of the limit block fixedly connected to the back of the threaded sleeve, a mounting frame fixedly connected to the front of the threaded sleeve, a plasma spray gun fixedly mounted on the front of the mounting frame, a threaded cylinder fixedly connected to the front of the plasma spray gun, a nozzle threadedly connected to the outer surface of the threaded cylinder, a symmetrical laser rangefinder fixedly connected to the front of the mounting frame, and a controller fixedly connected to the front of the spraying device body.

[0007] The above solution, by incorporating a laser rangefinder, significantly improves the control accuracy of coating thickness. This measure effectively reduces errors caused by human negligence, thereby significantly improving the quality and consistency of the final product. Furthermore, the threaded connection structure formed by the threaded cylinder and the spray head enables quick replacement of different spray heads. This design greatly expands the equipment's applicability and meets diverse market demands. To further enhance equipment performance, key components such as servo motors, bearings, threaded shafts, and threaded sleeves are designed for efficient operation while also achieving effective cost control, making it particularly suitable for small and medium-sized enterprises and research institutions.

[0008] Furthermore, the front of the spraying chamber is hinged with two sealed doors, each of which has an observation window on its front, and the inner wall of each observation window is fixedly connected with glass.

[0009] The above solution reduces the pollution of the surrounding environment by setting up a sealed door, and ensures that the spraying effect can be clearly observed during the spraying process by setting up an observation window.

[0010] Furthermore, the bottom surface of the spraying equipment body is fixedly connected to two symmetrical pillars, and the bottom end of each pillar is fixedly connected to a base.

[0011] The above solution, by setting up pillars and bases, significantly improves the stability of the spraying equipment, enabling it to adapt to different working environments. This makes the equipment more stable during operation, reducing equipment movement or tilting caused by vibration or uneven ground, thereby ensuring the accuracy and consistency of the spraying operation.

[0012] Furthermore, a mounting base is fixedly connected to the inner top wall of the spraying chamber, and an LED light is fixedly connected to the bottom surface of the mounting base.

[0013] The above solution, by setting up mounting bases and LED lights, can ensure uniform and sufficient lighting in the spraying area, thereby improving spraying quality and work efficiency.

[0014] Furthermore, a sealing gasket is fitted on the outer surface of the threaded cylinder, and the sealing gasket is located in front of the plasma spray gun.

[0015] The above solution, by setting a sealing gasket, can effectively prevent the heat and sparks generated by the plasma spray gun during operation from damaging the threaded cylinder. In addition, the material selection and design of the sealing gasket also take into account the characteristics of high temperature resistance and wear resistance to ensure that a good sealing effect is maintained during long-term use.

[0016] Furthermore, the inner wall of the spraying chamber is provided with an exhaust window, and an exhaust fan is fixedly installed inside the exhaust window by a mounting bracket.

[0017] The above solution optimizes airflow within the spray booth by installing exhaust windows and fans, thereby effectively controlling the emission of dust and volatile organic compounds (VOCs) generated during the spraying process.

[0018] Furthermore, a purification pipe is fixedly installed on the back of the spraying chamber by screws, and activated carbon adsorption cotton is fixedly connected to the inner wall of the purification pipe. The purification pipe is located behind the exhaust window.

[0019] The above solution, by setting up purification pipes and activated carbon adsorption cotton, can effectively filter out harmful gases and particulate matter generated during the spraying process, thereby protecting the health of operators and reducing environmental pollution.

[0020] Furthermore, two sets of reinforcing blocks are fixedly connected to the front of the mounting frame, and the side of each set of reinforcing blocks that is close to each other is fixedly connected to the upper surface of the laser rangefinder and the bottom surface of the laser rangefinder, respectively.

[0021] By implementing the above solution and installing reinforcement blocks, the stability of the laser rangefinder during operation can be ensured, and measurement errors caused by vibration or external impact can be reduced.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] This plasma spraying equipment, capable of precisely controlling coating thickness, significantly improves the control accuracy of coating thickness by incorporating a laser rangefinder. This effectively reduces errors caused by human error, thereby significantly improving the quality and consistency of the final product. Furthermore, the threaded connection structure formed by the threaded cylinder and the spray head enables quick replacement of different spray heads. This design greatly expands the equipment's applicability and meets diverse market demands. To further enhance the equipment's performance, key components such as servo motors, bearings, threaded shafts, and threaded sleeves are designed to work in tandem, ensuring efficient operation while achieving effective cost control. This makes it particularly suitable for small and medium-sized enterprises and research institutions. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this application. Figure 1 ;

[0025] Figure 2 This is a sectional view of the overall structural side view of the structure of this application;

[0026] Figure 3 This is a sectional view of the overall structural top view of the present application.

[0027] Figure 4 The overall structure of this application Figure 2 Enlarged diagram of point A in the middle.

[0028] In the picture:

[0029] 1. Spraying equipment body; 2. Controller; 3. Support plate; 4. Spraying chamber; 5. Servo motor; 6. Sealing door; 7. Observation window; 8. Threaded sleeve; 9. Mounting base; 10. LED light; 11. Bearing; 12. Threaded shaft; 13. Mounting frame; 14. Limiting block; 15. Limiting groove; 16. Support column; 17. Base; 18. Exhaust window; 19. Exhaust fan; 20. Purification pipe; 21. Activated carbon adsorption cotton; 22. Threaded cylinder; 23. Spray head; 24. Sealing gasket; 25. Laser rangefinder; 26. Reinforcing block; 27. Plasma spray gun. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Please see Figure 1 , Figure 2 and Figure 3 This embodiment of a plasma spraying device capable of precisely controlling coating thickness includes a spraying device body 1. A support plate 3 is fixedly connected to the upper surface of the spraying device body 1. A spraying chamber 4 is fixedly connected to the upper surface of the support plate 3. A servo motor 5 is fixedly installed on the upper surface of the spraying chamber 4. Bearings 11 are fixedly embedded in the inner top wall and the inner bottom wall of the spraying chamber 4. A threaded shaft 12 is fixedly connected to the inner ring of the two bearings 11. The top end of the threaded shaft 12 is fixedly connected to the output end of the servo motor 5. A threaded sleeve 8 is threadedly connected to the outer surface of the threaded shaft 12. A limit groove 15 is formed in the inner wall of the spraying chamber 4. A limit block 14 is slidably connected inside the limit groove 15. The front of the limit block 14 is fixedly connected to the back of the threaded sleeve 8. A mounting frame 13 is fixedly connected to the front of the threaded sleeve 8. A plasma spray gun 27 is fixedly installed on the front of the mounting frame 13. A threaded cylinder 22 is fixedly connected to the front of the plasma spray gun 27. The outer surface of the spraying equipment 2 is threaded with a nozzle 23. A symmetrical laser rangefinder 25 is fixedly connected to the front of the mounting frame 13. A controller 2 is fixedly connected to the front of the spraying equipment body 1. By setting the laser rangefinder 25, the control accuracy of the coating thickness is significantly improved. This measure effectively reduces the error caused by human operation, thereby significantly improving the quality and consistency of the final product. In addition, by combining the threaded connection structure formed by the threaded cylinder 22 and the nozzle 23, we have realized the function of quickly changing different nozzles 23. This design greatly increases the applicability of the equipment and meets the diversified needs of the market. In order to further improve the performance of the equipment, the cooperation of key components such as servo motor 5, bearing 11, threaded shaft 12 and threaded sleeve 8 is set to ensure that the equipment operates efficiently while also achieving effective cost control, which is particularly suitable for small and medium-sized enterprises and research institutions.

[0032] Please see Figure 1 , Figure 2 and Figure 4The front of the spraying chamber 4 is hinged to two sealed doors 6. Each sealed door 6 has an observation window 7 on its front, and the inner wall of each observation window 7 is fixedly connected to glass. By setting the sealed doors 6, the pollution of the surrounding environment by harmful gases can be reduced. By setting the observation windows 7, the spraying effect can be clearly observed during the spraying process. The bottom surface of the spraying equipment body 1 is fixedly connected to two symmetrical support columns 16. The bottom end of each support column 16 is fixedly connected to a base 17. By setting the support columns 16 and bases 17, the stability of the spraying equipment is significantly improved, which can adapt to the needs of different working environments, making the equipment more stable during operation and reducing the movement or tilting of the equipment caused by vibration or uneven ground. This ensures the accuracy and consistency of the spraying operation. The inner top wall of the spraying chamber 4 is fixedly connected to the mounting base 9, and the bottom surface of the mounting base 9 is fixedly connected to the LED light 10. By setting the mounting base 9 and the LED light 10, the lighting of the spraying operation area can be ensured to be uniform and sufficient, thereby improving the spraying quality and work efficiency. The outer surface of the threaded cylinder 22 is fitted with a sealing gasket 24, which is located in front of the plasma spray gun 27. By setting the sealing gasket 24, the heat and sparks generated by the plasma spray gun 27 during operation can be effectively prevented from damaging the threaded cylinder 22. In addition, the material selection and design of the sealing gasket 24 also take into account the characteristics of high temperature resistance and wear resistance to ensure that a good sealing effect is maintained during long-term use.

[0033] Please see Figure 1 , Figure 3 and Figure 4 The inner wall of the spraying chamber 4 is provided with an exhaust window 18. An exhaust fan 19 is fixedly installed inside the exhaust window 18 by a mounting bracket. By setting the exhaust window 18 and the exhaust fan 19, the airflow in the spraying chamber 4 is optimized, thereby effectively controlling the emission of dust and volatile organic compounds generated during the spraying process. A purification pipe 20 is fixedly installed on the back of the spraying chamber 4 by screws. Activated carbon adsorption cotton 21 is fixedly connected to the inner wall of the purification pipe 20. The purification pipe 20 is located behind the exhaust window 18. By setting the purification pipe 20 and the activated carbon adsorption cotton 21, harmful gases and particulate matter generated during the spraying process can be effectively filtered out, thereby protecting the health of operators and reducing environmental pollution. Two sets of reinforcing blocks 26 are fixedly connected to the front of the mounting frame 13. The side of each set of reinforcing blocks 26 that is close to each other is fixedly connected to the upper surface and the bottom surface of the laser rangefinder 25, respectively. By setting the reinforcing blocks 26, the stability of the laser rangefinder 25 during operation can be ensured, and measurement errors caused by vibration or external impact can be reduced.

[0034] In this embodiment, the laser rangefinder 25 significantly improves the control accuracy of coating thickness. This measure effectively reduces errors caused by human error, thereby significantly improving the quality and consistency of the final product. In addition, by combining the threaded connection structure formed by the threaded cylinder 22 and the nozzle 23, we realize the function of quickly changing different nozzles 23. This design greatly increases the applicability of the equipment and meets the diversified needs of the market. In order to further improve the performance of the equipment, the cooperation of key components such as servo motor 5, bearing 11, threaded shaft 12 and threaded sleeve 8 is set up to ensure that the equipment operates efficiently while also achieving effective cost control, making it particularly suitable for small and medium-sized enterprises and research institutions.

[0035] The working principle of the above embodiments is as follows:

[0036] During the spraying process, the laser rangefinder 25 monitors the coating thickness in real time. The controller 2 precisely controls the servo motor 5, thereby adjusting the rotation speed of the threaded cylinder 22 and the movement path of the nozzle 23. When the coating thickness reaches the preset value, the controller 2 issues a command to stop or change the movement state of the servo motor 5, ensuring the uniformity and accuracy of the coating thickness. At the same time, the heat generated by the plasma spray gun 27 during operation is effectively isolated and dissipated through the cooperation of the threaded cylinder 22 and the sealing gasket 24, avoiding damage to other parts of the equipment. In addition, by combining the threaded connection structure formed by the threaded cylinder 22 and the nozzle 23, we have achieved the function of quickly changing different nozzles 23. The combination of the exhaust fan 19 and the purification pipe 20 not only ensures the air circulation in the spraying chamber 4, but also reduces the emission of harmful substances through the filtration effect of the activated carbon adsorption cotton 21, protecting the working environment and the health of the operators. The setting of the reinforcing block 26 further enhances the stability of the laser rangefinder 25 and ensures the accuracy of the measurement data, thereby enabling the plasma spraying equipment to complete the spraying of high-quality coatings efficiently and stably.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plasma spraying device capable of precisely controlling coating thickness, comprising a spraying device body (1), characterized in that: A support plate (3) is fixedly connected to the upper surface of the spraying equipment body (1). A spraying chamber (4) is fixedly connected to the upper surface of the support plate (3). A servo motor (5) is fixedly installed on the upper surface of the spraying chamber (4). Bearings (11) are fixedly embedded in the inner top wall and the inner bottom wall of the spraying chamber (4). The inner rings of the two bearings (11) are fixedly connected to a threaded shaft (12). The top end of the threaded shaft (12) is fixedly connected to the output end of the servo motor (5). A threaded sleeve (8) is threaded onto the outer surface of the threaded shaft (12). A limit groove (1) is opened on the inner wall of the spraying chamber (4). 5) The limiting groove (15) is internally connected to a limiting block (14). The front of the limiting block (14) is fixedly connected to the back of the thread sleeve (8). The front of the thread sleeve (8) is fixedly connected to a mounting frame (13). The front of the mounting frame (13) is fixedly mounted with a plasma spray gun (27). The front of the plasma spray gun (27) is fixedly connected with a threaded cylinder (22). The outer surface of the threaded cylinder (22) is threadedly connected with a nozzle (23). The front of the mounting frame (13) is fixedly connected with a symmetrical laser rangefinder (25). The front of the spraying equipment body (1) is fixedly connected with a controller (2).

2. The plasma spraying equipment for precisely controlling coating thickness according to claim 1, characterized in that: The front of the spraying chamber (4) is hinged with two sealed doors (6), and each sealed door (6) has an observation window (7) on its front, and the inner wall of each observation window (7) is fixedly connected with glass.

3. The plasma spraying equipment for precisely controlling coating thickness according to claim 1, characterized in that: The bottom surface of the spraying equipment body (1) is fixedly connected to two symmetrical pillars (16), and the bottom end of each pillar (16) is fixedly connected to a base (17).

4. The plasma spraying equipment for precisely controlling coating thickness according to claim 1, characterized in that: The inner top wall of the spraying chamber (4) is fixedly connected to a mounting base (9), and the bottom surface of the mounting base (9) is fixedly connected to an LED light (10).

5. The plasma spraying equipment for precisely controlling coating thickness according to claim 1, characterized in that: The outer surface of the threaded cylinder (22) is fitted with a sealing gasket (24), which is located in front of the plasma spray gun (27).

6. The plasma spraying equipment for precisely controlling coating thickness according to claim 1, characterized in that: The inner wall of the spraying chamber (4) is provided with an exhaust window (18), and an exhaust fan (19) is fixedly installed inside the exhaust window (18) by a mounting bracket.

7. The plasma spraying equipment for precisely controlling coating thickness according to claim 1, characterized in that: A purification pipe (20) is fixedly installed on the back of the spraying chamber (4) by screws. Activated carbon adsorption cotton (21) is fixedly connected to the inner wall of the purification pipe (20). The purification pipe (20) is located behind the exhaust window (18).

8. The plasma spraying equipment for precisely controlling coating thickness according to claim 1, characterized in that: The front of the mounting frame (13) is fixedly connected to two sets of reinforcing blocks (26). The side of each set of reinforcing blocks (26) that is close to each other is fixedly connected to the upper surface of the laser rangefinder (25) and the bottom surface of the laser rangefinder (25).

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