A surface coating device for protecting products made of metallic and non-metallic materials

Abstract

This utility model relates to the field of metal and non-metal material protection technology, specifically a surface spraying device for metal and non-metal material protection products. It includes a fixed frame and a movable frame. A first moving component is provided at the bottom of the movable frame. Both the fixed frame and the movable frame have rotating shafts mounted on them via bearings. An inner clamping component is provided on the inner side of the rotating shaft, and rotation is controlled by a first motor. A movable seat is provided on one side of both the fixed frame and the movable frame. A second moving component is provided at the bottom of the movable seat. A lifting mechanism is provided on the movable seat via a third moving component. A spray nozzle is mounted at the top of the lifting mechanism, and the spray nozzle is connected to a spray paint source via a pipeline. A mounting frame is movably mounted at the top of the fixed frame. Multiple thickness detection probes are evenly arranged on the mounting frame, and the thickness detection probes are connected to an online thickness detector via wires. This utility model can improve the comprehensiveness, sufficiency, and flexibility of surface spraying for metal and non-metal material protection products.

Description

Technical Field

[0001] This utility model relates to the field of metal and non-metal material protection technology, specifically to a surface spraying device for metal and non-metal material protection products. Background Technology

[0002] In the field of metal and non-metal material protection product processing, surface coating is a key process for improving the corrosion resistance, wear resistance, and aesthetics of products. Its processing efficiency and coating quality directly affect product performance and service life. However, existing coating equipment still has many shortcomings in practical applications.

[0003] First, the clamping mechanism of the existing equipment has poor adaptability. Most equipment uses external clamping to fix the product to be coated. For example, when processing metal and non-metal pipes, it is necessary to clamp both ends of the pipe. This is not only inconvenient to flexibly adapt to metal and non-metal pipes of different diameters, but also the external clamping can easily block the end of the workpiece, resulting in missing coating at the end, which requires subsequent manual recoating, greatly reducing processing efficiency.

[0004] Secondly, the spraying adjustment flexibility is insufficient. Traditional spraying devices often have fixed nozzles or can only move in one direction, making it impossible to flexibly adjust the spraying distance, height, and angle according to the size and shape of the workpiece. When dealing with different specifications of metal and non-metal products, problems such as uneven coating thickness and spraying blind spots easily occur, making it difficult to ensure coating uniformity and comprehensiveness, thus affecting the product's protective effect.

[0005] Finally, coating quality inspection is lagging behind. In the current spraying process, coating thickness inspection is mostly performed offline after spraying is completed. If problems such as missed coating or insufficient thickness are found, rework is required, which not only increases production costs but also extends the production cycle. Moreover, offline inspection cannot provide real-time feedback on the spraying status, making it difficult to adjust spraying parameters in a timely manner, resulting in large fluctuations in product pass rates. Utility Model Content

[0006] The purpose of this invention is to provide a surface coating device for protecting products made of both metallic and non-metallic materials, in order to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a surface spraying device for protecting products made of metal and non-metal materials, comprising a fixed frame and a movable frame. A first movable component is provided at the bottom of the movable frame. A rotating shaft is mounted on both the fixed frame and the movable frame via bearings. An inner clamping component is provided on the inner side of the rotating shaft. A first motor is mounted on the fixed frame in conjunction with the rotating shaft. A movable seat is provided on one side of the fixed frame and the movable frame. A second movable component is provided at the bottom of the movable seat. A lifting mechanism is provided on the movable seat. A third movable component is provided between the lifting mechanism and the movable seat. A spray nozzle is mounted at the top of the lifting mechanism. The spray nozzle is connected to a spray paint source via a pipeline. A mounting frame is movably mounted at the top of the fixed frame. Multiple thickness detection probes are evenly arranged on the mounting frame. The thickness detection probes are connected to an online thickness detector via wires.

[0008] The present invention is further configured such that the first moving component includes a first ball screw, and a first screw nut and a first screw motor are provided in conjunction with the first ball screw. The moving frame is installed on the top of the first screw nut. The first screw motor is connected to the first ball screw in a transmission connection. When the first screw motor is started, the operation of the first ball screw is controlled, so that the first screw nut can control the movement of the moving frame, thereby enabling the moving frame to drive the corresponding inner clamping component to move, so as to cooperate with the inner clamping component on the fixed frame to achieve stable clamping during the protective spraying operation of the metal or non-metal pipe surface to be sprayed.

[0009] The present invention is further configured such that the second moving component includes a second ball screw, and a second screw nut and a second screw motor are provided in cooperation with the second ball screw. The moving seat is installed on the top of the second screw nut. The second screw motor is connected to the second ball screw for transmission. When the second screw motor is started, the operation of the second ball screw is controlled, so that the second screw nut can drive the moving seat to move. The moving seat can control the movement of the lifting mechanism, thereby controlling the movement of the spray nozzle, so that the spray nozzle can approach or move away from the metal or non-metal pipe to be sprayed.

[0010] The present invention is further configured such that the third moving component includes a third ball screw, and a third screw nut and a third screw motor are provided in conjunction with the third ball screw. The third screw motor is connected to the third ball screw in a transmission manner. The lifting mechanism is installed on the third screw nut. When the third screw motor is started, the operation of the third ball screw can be controlled by the third screw motor, so that the third screw nut can control the lifting structure to move along the processing direction on the moving seat, thereby realizing the surface spraying of metal or non-metal pipes.

[0011] The present invention is further configured such that the lifting mechanism includes a fixed column, the top of the fixed column is provided with a lifting groove, a first electric push rod is provided in the lifting groove, the output end of the first electric push rod is connected to the lifting column, the lifting column and the lifting groove are slidably limited to each other, the first electric push rod is activated, and the movement of the lifting column in the lifting groove can be controlled by the first electric push rod, thereby realizing the lifting and adjustment of the spray nozzle.

[0012] This invention is further configured such that a mounting head is provided at the top of the lifting column, and a mounting seat is provided on one side of the mounting head. A locking bolt is movably inserted through the mounting head, and the inner end of the locking bolt is threadedly locked to the mounting seat. Thus, the mounting seat can be detachably and fixed to the mounting head by the locking bolt. Simultaneously, the mounting angle of the mounting seat on the mounting head can be flexibly adjusted, thereby enabling fine-tuning of the spraying angle during use. A clamping frame is provided on the side of the mounting seat away from the mounting head, and the spraying head is installed between the clamping frame and the mounting seat. A fixing bolt is provided between the end of the clamping frame and the mounting seat. This design allows for convenient and detachable installation of the spray nozzle between the clamping frame and the mounting base, facilitating installation, disassembly, maintenance, and replacement of the spray nozzle. Both the mounting base and the clamping frame have slots shaped to accommodate the spray nozzle. Gear rings are provided on the sides of the mounting base and the mounting head that are close to each other. The two sets of gear rings mesh with each other, improving the stability of the mounting base on the mounting head and preventing displacement of the spray nozzle during use due to unstable mounting. This enhances spraying accuracy. Furthermore, separating the gear rings allows for flexible adjustment of the spray nozzle's rotation driven by the mounting base.

[0013] The present invention is further configured such that the inner clamping member includes a first clamping section and a second clamping section, both of which have trapezoidal side sections. The first clamping section is located outside the second clamping section and is smaller in size than the second clamping section. Here, both the first and second clamping sections may include a rigid inner layer and a rubber protective outer layer. The rubber protective outer layer enhances the clamping and anti-slip effect of the first and second clamping sections during the spraying process of metal or non-metal pipes. The first clamping section is used for clamping and fixing small-diameter pipes within a corresponding appropriate range during the spraying process, and the second clamping section is used for clamping and fixing large-diameter pipes within a corresponding appropriate range during the spraying process.

[0014] The present invention is further configured such that a fixed seat is provided at the top of the fixed frame, and a telescopic groove is provided at the top of the fixed seat. A second electric push rod is installed in the telescopic groove, and a lifting seat is installed at the top of the second electric push rod. The bottom end of the lifting seat is in a limiting sliding fit with the telescopic groove. When the second electric push rod is activated, the lifting seat can be adjusted in height within the telescopic groove, thereby controlling the lifting adjustment of the mounting frame and thus the flexible lifting adjustment of the detection height of the thickness detection probe. At the same time, by placing the second electric push rod in the telescopic groove, the sliding limiting fit between the lifting seat and the telescopic groove can improve the lifting stability of the mounting frame and the protective function of the second electric push rod.

[0015] Compared with existing technologies, the beneficial effects of this utility model are: 1. Adaptability to multi-size pipes and comprehensive spraying: The device adjusts the position of the moving frame through the first moving component, and in conjunction with the first clamping section and the second clamping section (trapezoidal structure, adapted to small and large diameter pipes respectively) of the inner clamping component, it can internally clamp the ends of metal and non-metal pipes of different sizes. This clamping method avoids the problem of end coating omissions caused by traditional external clamping, eliminating the need for subsequent recoating. At the same time, the rubber protective outer layer enhances the anti-slip effect of the clamping, greatly improving spraying efficiency and comprehensiveness, and adapting to the spraying needs of diverse pipes within a certain size range.

[0016] 2. Flexible and precise spraying adjustment to adapt to different working conditions: This device has multi-dimensional adjustment capabilities. The second moving component controls the distance between the spray nozzle and the pipeline, the lifting mechanism adjusts the height of the nozzle, and the third moving component drives the nozzle to move along the pipeline axis. In addition, the spray nozzle can be finely adjusted in angle through the mounting base, gear ring and other structures. It can flexibly adjust the spraying parameters for pipelines of different models and sizes to ensure precise and controllable spraying. It effectively improves the flexibility and convenience of spraying operations on the surface of metal and non-metal pipelines and adapts to diverse spraying conditions.

[0017] 3. Real-time monitoring ensures coating quality and reduces rework rates: Multiple thickness detection probes on the top mounting bracket of the device evenly cover the working area of ​​metal or non-metal pipes. Connected to an online thickness gauge (compatible with various types of gauges for different substrates), it allows for timely monitoring of coating thickness and any missed areas after spraying. Simultaneously, key components (such as ball screws, motors, and probes) can be protected using existing technologies, ensuring stable equipment operation, rapid problem detection and recoating, significantly reducing rework rates, and effectively guaranteeing the coating quality of both metal and non-metal pipes. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a surface spraying device for protecting products made of metal and non-metal materials according to this utility model;

[0019] Figure 2 This is a schematic diagram of the mating structure between the two sets of inner clamping parts in this utility model;

[0020] Figure 3 This is an exploded view of the installation structure of the spray nozzle on the lifting column in this utility model;

[0021] Figure 4 This is a schematic diagram of the installation structure of the spray nozzle on the mounting base in this utility model;

[0022] Figure 5 This is a schematic diagram of the connection structure between the clamping frame and the mounting base in this utility model;

[0023] Figure 6 This is a cross-sectional view of the mating structure between the fixed seat and the lifting seat in this utility model;

[0024] Figure 7 This is a cross-sectional view of the cooperation structure between the fixed column and the lifting column in this utility model;

[0025] Figure 8 This is a schematic diagram of the overall structure of the inner clamping component in this utility model.

[0026] The components represented by each number in the attached diagram are listed below: 1. Fixed frame; 2. Moving frame; 3. Rotating shaft; 4. Internal clamping component; 5. First motor; 6. Moving seat; 7. Spray nozzle; 8. Mounting frame; 9. Thickness detection probe; 10. First ball screw; 11. First screw nut; 12. First screw motor; 13. Second ball screw; 14. Second screw nut; 15. Second screw motor; 16. Third ball screw; 17. Third screw nut; 18. Third screw motor; 19. Fixed column; 20. Lifting groove; 21. First electric push rod; 22. Lifting column; 23. Mounting head; 24. Mounting seat; 25. Locking bolt; 26. Pressure frame; 27. Fixed bolt; 28. Gear ring; 29. ​​First clamping section; 30. Second clamping section; 31. Fixed seat; 32. Telescopic groove; 33. Second electric push rod; 34. Lifting seat. Detailed Implementation

[0027] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] This utility model provides a technical solution: Please refer to Figures 1-8A surface coating device for protecting products made of metal and non-metal materials includes a fixed frame 1 and a movable frame 2. A first moving component is provided at the bottom of the movable frame 2. A rotating shaft 3 is provided on both the fixed frame 1 and the movable frame 2 via bearings. An inner clamping component 4 is provided on the inner side of the rotating shaft 3. A first motor 5 is provided on the fixed frame 1 in conjunction with the rotating shaft 3. A movable seat 6 is provided on one side of the fixed frame 1 and the movable frame 2. A second moving component is provided at the bottom of the movable seat 6. A lifting mechanism is provided on the movable seat 6. A third moving component is provided between the lifting mechanism and the movable seat 6. A spray nozzle 7 is installed at the top of the lifting mechanism. The spray nozzle 7 is connected to a spray paint source through a pipeline. A mounting frame 8 is provided at the top of the fixed frame 1 that can be raised and lowered. Multiple thickness detection probes 9 are evenly arranged on the mounting frame 8. The thickness detection probes 9 are connected to an online thickness detector through wires.

[0029] In this utility model, the first moving component includes a first ball screw 10, and a first screw nut 11 and a first screw motor 12 are provided in conjunction with the first ball screw 10. The moving frame 2 is installed on the top of the first screw nut 11. The first screw motor 12 is connected to the first ball screw 10 for transmission. When the first screw motor 12 is started, the operation of the first ball screw 10 is controlled, so that the first screw nut 11 can control the movement of the moving frame 2. This allows the moving frame 2 to drive the corresponding inner clamping member 4 to move, thereby cooperating with the inner clamping member 4 on the fixed frame 1 to achieve stable clamping during the protective spraying operation of the metal or non-metal pipe surface to be sprayed.

[0030] In this utility model, the second moving component includes a second ball screw 13, and a second screw nut 14 and a second screw motor 15 are provided in conjunction with the second ball screw 13. The moving seat 6 is installed on the top of the second screw nut 14. The second screw motor 15 is connected to the second ball screw 13 for transmission. When the second screw motor 15 is started, the operation of the second ball screw 13 is controlled, so that the second screw nut 14 can drive the moving seat 6 to move. The moving seat 6 can control the movement of the lifting mechanism, thereby controlling the movement of the spray nozzle 7, so that the spray nozzle 7 can approach or move away from the metal or non-metal pipe to be sprayed.

[0031] In this utility model, the third moving component includes a third ball screw 16, and a third screw nut 17 and a third screw motor 18 are provided in conjunction with the third ball screw 16. The third screw motor 18 is connected to the third ball screw 16 in a transmission manner. The lifting mechanism is installed on the third screw nut 17. When the third screw motor 18 is started, the operation of the third ball screw 16 can be controlled by the third screw motor 18, so that the third screw nut 17 can control the lifting structure to move along the processing direction on the moving seat 6, thereby realizing the surface spraying of metal or non-metal pipes.

[0032] In this utility model, the lifting mechanism includes a fixed column 19, and a lifting groove 20 is provided at the top of the fixed column 19. A first electric push rod 21 is provided in the lifting groove 20. The output end of the first electric push rod 21 is connected to a lifting column 22. The lifting column 22 and the lifting groove 20 are in sliding limit cooperation. When the first electric push rod 21 is activated, the movement of the lifting column 22 in the lifting groove 20 can be controlled by the first electric push rod 21, thereby realizing the lifting and adjusting of the spray nozzle 7.

[0033] In this invention, the top of the lifting column 22 is provided with a mounting head 23, and a mounting base 24 is provided on one side of the mounting head 23. A locking bolt 25 is movably inserted through the mounting head 23, and the inner end of the locking bolt 25 is threadedly locked to the mounting base 24. Thus, the mounting base 24 can be detachably mounted and fixed to the mounting head 23 by means of the locking bolt 25. Simultaneously, the mounting angle of the mounting base 24 on the mounting head 23 can be flexibly adjusted, thereby enabling fine-tuning of the spraying angle of the spray nozzle 7 during use. A clamping frame 26 is provided on the side of the mounting base 24 away from the mounting head 23. The spray nozzle 7 is installed between the clamping frame 26 and the mounting base 24, and a fixing bolt 27 is provided between the end of the clamping frame 26 and the mounting base 24. The spray nozzle 7 can be easily and detachably installed between the clamping frame 26 and the mounting base 24, facilitating the installation, disassembly, maintenance, and replacement of the spray nozzle 7. Both the mounting base 24 and the clamping frame 26 have slots cut to fit the shape of the spray nozzle 7 for installation. The mounting base 24 and the mounting head 23 are provided with toothed rings 28 on their respective sides. The two sets of toothed rings 28 mesh with each other, which improves the installation stability of the mounting base 24 on the mounting head 23 and prevents the spray nozzle 7 from shifting due to unstable installation of the mounting base 24 during use, thus improving spraying accuracy. At the same time, separating the toothed rings 28 allows for flexible adjustment of the rotation of the spray nozzle 7 driven by the mounting base 24.

[0034] In this utility model, the inner clamping member 4 includes a first clamping section 29 and a second clamping section 30. The side cross-sections of the first clamping section 29 and the second clamping section 30 are both trapezoidal. The first clamping section 29 is located outside the second clamping section 30 and its size is smaller than that of the second clamping section 30. Here, both the first clamping section 29 and the second clamping section 30 can include a hard inner layer and a rubber protective outer layer. The rubber protective outer layer improves the clamping and anti-slip effect of the first clamping section 29 and the second clamping section 30 on the spraying process of metal or non-metal pipes. The first clamping section 29 is used for clamping and fixing small-diameter pipes in a corresponding appropriate range during spraying, and the second clamping section 30 is used for clamping and fixing large-diameter pipes in a corresponding appropriate range during spraying.

[0035] In this invention, a fixed base 31 is provided at the top of the fixed frame 1. A telescopic groove 32 is provided at the top of the fixed base 31. A second electric push rod 33 is installed in the telescopic groove 32. A lifting seat 34 is installed at the top of the second electric push rod 33. The bottom end of the lifting seat 34 is in a limiting sliding fit with the telescopic groove 32. When the second electric push rod 33 is activated, the lifting seat 34 can be adjusted in the telescopic groove 32, thereby controlling the lifting adjustment of the mounting frame 8 and the flexible adjustment of the detection height of the thickness detection probe 9. At the same time, by placing the second electric push rod 33 in the telescopic groove 32, the sliding limiting fit between the lifting seat 34 and the telescopic groove 32 can improve the lifting stability of the mounting frame 8 and the protective function of the second electric push rod 33.

[0036] In summary, the working principle and specific workflow of this utility model are as follows:

[0037] In use, the metal or non-metal pipe to be sprayed is placed between the fixed frame 1 and the movable frame 2, and the axis of the metal or non-metal pipe is aligned with the axis of the inner clamping member 4.

[0038] Start the first lead screw motor 12 to control the operation of the first ball screw 10, so that the first lead screw nut 11 can control the movement of the moving frame 2, thereby enabling the moving frame 2 to drive the corresponding inner clamping part 4 to move, so as to cooperate with the inner clamping part 4 on the fixed frame 1 to achieve stable clamping during the protective spraying operation of the metal or non-metal pipe surface that needs to be sprayed.

[0039] In this utility model, the inner clamping member 4 includes a first clamping section 29 and a second clamping section 30, which can be used to clamp different models of metal or non-metal pipes within a certain size range.

[0040] Furthermore, in this utility model, the cooperation of the first clamping section 29 or the second clamping section 30 can achieve internal clamping of the end of the metal or non-metal pipe during surface spraying. In this way, full spraying can be achieved when the metal or non-metal pipe is sprayed on the outer surface, avoiding the need for subsequent touch-up coating of the end caused by external clamping of the end in the prior art, thus improving spraying efficiency.

[0041] After clamping and fixing the metal or non-metal pipe to be surface coated, start the first motor 5, control the corresponding rotating shaft 3 to rotate through the first motor 5, and control the rotation of the corresponding inner clamping part 4 through the rotating shaft 3, thereby realizing the rotation drive of the metal or non-metal pipe product to be coated under the drive of the inner clamping part 4.

[0042] At the same time, the third lead screw motor 18 is started, and the operation of the third ball screw 16 can be controlled by the third lead screw nut 17, so that the lifting structure can be controlled to move on the moving seat 6 along the processing direction (the axial direction of the pipe), thereby realizing the surface spraying of metal or non-metal pipes.

[0043] In this process, the coating material can be transported to the spray nozzle 7 through the pipeline structure under the drive of a pump or airflow, and sprayed outward through the spray nozzle 7 to cover the surface of the metal or non-metal pipe, thereby achieving surface coating of the metal or non-metal pipe. The transportation and supply of coating material is a known technology, and this utility model will not elaborate on this part.

[0044] When dealing with spraying operations on metal or non-metal pipes of different sizes, the second lead screw motor 15 can be started to control the operation of the second ball screw 13, so that the second lead screw nut 14 can drive the moving seat 6 to move. The moving seat 6 can control the movement of the lifting mechanism, thereby controlling the movement of the spray nozzle 7, so that the spray nozzle 7 can move closer to or further away from the metal or non-metal pipe to be sprayed, and the spraying distance can be flexibly adjusted.

[0045] At the same time, activating the first electric push rod 21 can raise and lower the lifting column 22, thereby enabling flexible adjustment of the spraying height of the spray nozzle 7;

[0046] In addition, in this utility model, the spray nozzle 7 is rotatably mounted on the top of the lifting column 22 through the cooperation of the clamping frame 26, the mounting base 24 and the mounting head 23. In this way, the spraying angle of the spray nozzle 7 can be flexibly adjusted, which improves the adjustment flexibility and convenience when spraying metal or non-metal pipe surfaces, and improves the spraying accuracy.

[0047] In addition, this utility model sets up a mounting bracket 8 on the top and installs multiple thickness detection probes 9 on the mounting bracket 8. These probes are then used in conjunction with an existing online thickness detector via wires. This allows for timely monitoring of the coating process after the coating is completed. If any areas are found to be missed, they can be recoated promptly. Here, the thickness detection probes 9 are evenly distributed and cover the entire working area of ​​the metal or non-metal pipe.

[0048] Online thickness gauges can be electromagnetic induction type online thickness gauges, such as the German EPK MiniTest7400 series and the American DeFelsko PosiTector 6000 series online models, which are suitable for surface coating inspection of metal pipes;

[0049] Online thickness gauges can be eddy current online thickness gauges, such as the Japanese Kett LE-300J online model and the China Science and Technology Testing KD-ED series, which are suitable for non-magnetic metal pipe substrates;

[0050] Online thickness gauges can also be laser interferometric online thickness gauges, such as the Keyence LK-G series from Germany and the Keyence laser thickness gauge from China.

[0051] Spectral reflectance thickness gauges, such as the Filmetrics F20 series online model from the USA;

[0052] Compatible with all substrate types, with no material limitations;

[0053] In this utility model, the parts of the ball screw that run can be protected by setting a corrugated telescopic cover. The motor and other components are protected by a motor housing, a protective cover and other structures. In addition, the outer side of the thickness detection probe 9 that is close to the spray nozzle 7 can be protected by setting a baffle and other protective structures to avoid the paint from directly affecting the thickness detection probe 9 during spraying.

[0054] In this utility model, the operation of related electrical components such as motors and electric push rods can be controlled by a PLC control system according to a set program. The specific working process and working principle of this utility model have been described in detail. Based on the above working process and working principle, those skilled in the art should know the specific circuit connection relationship and implement it through existing technology. Furthermore, the circuit connection relationship between related electrical components and the specific driver program are not the subject of protection of this utility model, and this utility model will not elaborate on them.

[0055] 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 process, method, article, or apparatus.

[0056] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A surface coating device for protecting products made of metal and non-metal materials, comprising a fixed frame (1) and a movable frame (2), characterized in that: The bottom of the movable frame (2) is provided with a first movable component. Both the fixed frame (1) and the movable frame (2) are provided with a rotating shaft (3) through a bearing. An inner clamping part (4) is provided on the inner side of the rotating shaft (3). The fixed frame (1) is provided with a first motor (5) in cooperation with the rotating shaft (3). A movable seat (6) is provided on one side of the fixed frame (1) and the movable frame (2). A second movable component is provided at the bottom of the movable seat (6). A lifting mechanism is provided on the movable seat (6). A third movable component is provided between the lifting mechanism and the movable seat (6). A spray nozzle (7) is installed at the top of the lifting mechanism. The spray nozzle (7) is connected to a spray paint source through a pipeline. An installation frame (8) is provided at the top of the fixed frame (1) and can be raised and lowered. Multiple thickness detection probes (9) are evenly arranged on the installation frame (8). The thickness detection probes (9) are connected to an online thickness detector through wires.

2. The surface spraying device for protecting products made of metal and non-metal materials according to claim 1, characterized in that: The first moving component includes a first ball screw (10), and a first screw nut (11) and a first screw motor (12) are provided in conjunction with the first ball screw (10). The moving frame (2) is installed on the top of the first screw nut (11), and the first screw motor (12) is connected to the first ball screw (10) in a transmission connection.

3. The surface spraying device for protecting products made of metal and non-metal materials according to claim 1, characterized in that: The second moving component includes a second ball screw (13), and a second screw nut (14) and a second screw motor (15) are provided in cooperation with the second ball screw (13). The moving seat (6) is installed on the top of the second screw nut (14), and the second screw motor (15) is connected to the second ball screw (13) in a transmission connection.

4. The surface spraying device for protecting products made of metal and non-metal materials according to claim 3, characterized in that: The third moving component includes a third ball screw (16), and a third screw nut (17) and a third screw motor (18) are provided in conjunction with the third ball screw (16). The third screw motor (18) is connected to the third ball screw (16) in a transmission connection, and the lifting mechanism is installed on the third screw nut (17).

5. A surface coating device for protecting products made of metal and non-metal materials according to claim 4, characterized in that: The lifting mechanism includes a fixed column (19), and a lifting groove (20) is provided at the top of the fixed column (19) facing downward. A first electric push rod (21) is provided in the lifting groove (20), and a lifting column (22) is connected to the output end of the first electric push rod (21). The lifting column (22) and the lifting groove (20) are in sliding limit cooperation.

6. The surface spraying device for protecting products made of metal and non-metal materials according to claim 5, characterized in that: The top of the lifting column (22) is provided with a mounting head (23), and a mounting seat (24) is provided on one side of the mounting head (23). A locking bolt (25) is movably passed through the mounting head (23). The inner end of the locking bolt (25) is threadedly locked to the mounting seat (24). A clamping frame (26) is provided on the side of the mounting seat (24) away from the mounting head (23). The spray nozzle (7) is installed between the clamping frame (26) and the mounting seat (24). A fixing bolt (27) is provided between the end of the clamping frame (26) and the mounting seat (24). A toothed ring (28) is provided on the side of the mounting seat (24) and the mounting head (23) that are close to each other. The two sets of toothed rings (28) mesh with each other.

7. The surface spraying device for protecting products made of metal and non-metal materials according to claim 1, characterized in that: The inner clamping member (4) includes a first clamping section (29) and a second clamping section (30). The side sections of the first clamping section (29) and the second clamping section (30) are both trapezoidal. The first clamping section (29) is located outside the second clamping section (30) and its size is smaller than that of the second clamping section (30).

8. The surface spraying device for protecting products made of metal and non-metal materials according to claim 1, characterized in that: The top of the fixed frame (1) is provided with a fixed seat (31), and the top of the fixed seat (31) is provided with a telescopic groove (32). A second electric push rod (33) is installed in the telescopic groove (32), and a lifting seat (34) is installed at the top of the second electric push rod (33). The bottom end of the lifting seat (34) and the telescopic groove (32) are in a limited sliding fit.

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