Supersonic flame spraying equipment and spraying method thereof

Abstract

The present invention provides a supersonic flame spraying device and a spraying method thereof, comprising a supersonic flame spraying component and a positioning component, wherein a shielding component is provided at the front end of the positioning component, the shielding component is used to shield the front end of the tube body, the shielding component comprises three detachable shielding bodies, the front faces of the three shielding bodies are all fixedly connected with a one-way valve, and a dust suction component is provided at the rear end of the positioning component. According to the present invention, before spraying, the tube body is firstly arranged on the positioning component, and then the three detachable shielding bodies are combined and covered at the front end of the tube body to isolate the front end of the tube body from the outside, which is conducive to preventing the dust generated by the spraying from entering the external environment, and after the spraying is completed, the rear end of the tube body is sucked by the dust suction component, and the air flow passes through the one-way valve, the inner side of the shielding body and the tube body in sequence, and the air flow will take away the dust in the isolated space, and the dust is collected by the dust suction component, thereby reducing the impact of the dust generated by the spraying on the working environment.

Description

Technical Field

[0001] The invention belongs to the field of flame spraying, and in particular relates to a supersonic flame spraying device and a spraying method thereof. Background Art

[0002] HVOF spraying equipment primarily consists of an air supply unit, a material supply unit, and a spray gun. The air supply unit supplies combustible gas and oxygen to the spray gun's combustion chamber, while the material supply unit supplies the spray material. The combustible gas and oxygen burn in the combustion chamber, melting the spray material. The melted material is then ejected from the nozzle along with the heat flow, forming a coating on the workpiece surface.

[0003] During the flame spraying process on the inner wall of the tubular body, the nozzle will move and spray inside the tube. During the spraying process, both ends of the tube are open. The scattered powder generated by the supersonic spraying will float out from the port of the tube, causing pollution to the external environment. Summary of the Invention

[0004] In view of this, the present invention aims to propose a supersonic flame spraying equipment to solve the technical problem that during the process of flame spraying the inner wall of a tubular body, the nozzle will move and spray inside the tube body. During the spraying process, both ends of the tubular body are open, and the scattered powder generated by the supersonic spraying will float out from the port of the tubular body, causing pollution to the external environment.

[0005] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0006] In a first aspect, a supersonic flame spraying device is provided, comprising a supersonic flame spraying assembly and a positioning assembly, wherein the positioning assembly is used to clamp and position a pipe body, a shielding assembly is provided at the front end of the positioning assembly, and the shielding assembly is used to shield the front end of the pipe body, the shielding assembly comprises three detachable shielding bodies, the front faces of the three shielding bodies are fixedly connected to a one-way valve, and the three detachable shielding bodies cover the spraying end of the supersonic flame spraying assembly, and a dust suction assembly is provided at the rear end of the positioning assembly, and the dust suction assembly is used to connect the rear end of the pipe body shielded and isolated by the shielding assembly.

[0007] Preferably, the positioning assembly includes a support seat, the top of the support seat is fixedly connected to an annular support body, the inner ring surface of the annular support body is fixedly connected to a ventilation cover, the inner wall of the ventilation cover is fixedly connected to a lap ring, the front end of the ventilation cover is plugged with a sealing ring, the sealing ring is mounted on the front side of the lap ring, the inner ring space of the sealing ring is a ventilation channel, the end surface of the sealing ring is abutted against a tube body, the end surface of the annular support body is provided with a clamping assembly, the clamping assembly is used to clamp and position the outer surface of the tube body;

[0008] A spiral body is fixedly connected to the inner wall of the ventilation cover. The spiral body is a tapered spiral. A first spiral channel is formed between the spiral body and the inner wall of the ventilation cover.

[0009] Preferably, the clamping assembly includes three first motors, which are fixedly mounted on the end face of the annular support body and distributed in an annular array with the annular support body as a reference. The output ends of the three first motors are fixedly connected to threaded rods, and the surfaces of the three threaded rods are threadedly connected to clamps, and the clamps are slidably connected to the surface of the annular support body through tracks.

[0010] Preferably, the three detachable shielding bodies are respectively a first shielding body, a second shielding body and a third shielding body. The first shielding body, the second shielding body and the third shielding body are combined to form a first opening, a second opening and a shielding cavity. The second opening is used to be sleeved on the surface of the tube body, and the shielding cavity cover is arranged at the front end of the tube body.

[0011] Preferably, the ends of the three clamping jaws are fixedly connected with positioning sleeves, and electromagnets are fixedly installed in the three positioning sleeves. Magnetic plug-ins are fixedly connected to the surfaces of the first shielding body, the second shielding body and the third shielding body, and the three magnetic plug-ins are respectively inserted in the three positioning sleeves, and the three magnetic plug-ins are respectively magnetically connected to the three electromagnets.

[0012] Preferably, the first shielding body and the second shielding body are respectively fixedly connected with a splicing body, and the two splicing bodies are combined to form a complete first marking body. A support frame is fixedly connected to the surface of the annular support body, and a first recognition camera is fixedly installed on the first surface of the support frame.

[0013] Preferably, three plug-in slots are provided at the end of the ventilation hood, and docking blocks are slidably plugged into the three plug-in slots. The three docking blocks are fixedly connected to the edge of the sealing ring, and a second marking body is fixedly connected to the surface of one of the docking blocks, and a second identification camera is fixedly connected to the second surface of the support frame.

[0014] Preferably, a second spiral channel is fixedly connected to the inner edge of the first opening formed by the first shielding body, the second shielding body and the third shielding body, the second spiral channel includes a first channel body, a second channel body and a third channel body, the first channel body, the second channel body and the third channel body are fixedly connected to the inner walls of the first shielding body, the second shielding body and the third shielding body respectively, and the first opening is connected to the port of the second spiral channel by docking.

[0015] Preferably, the dust collection assembly includes a dust collector, the dust collection end of the dust collector is fixedly connected to an air suction pipe, and the end of the air suction pipe away from the dust collector is fixedly connected to the rear end of the ventilation hood.

[0016] In a second aspect, a supersonic flame spraying method is provided, comprising the following steps:

[0017] Step 1: Position the tube body: Position the tube body using the positioning assembly;

[0018] Step 2: Shielding and Isolation: By combining three separable shielding bodies and setting a cover at the front end of the tube body, the front end of the tube body is shielded and isolated, so that the spray end of the supersonic flame spraying assembly is isolated inside the tube body and the shielding body, so that the dust generated by the powder spraying is isolated inside the tube body and the shielding body;

[0019] Step 3: Dust collection: The rear end of the tube body is vacuumed by the vacuum assembly. The gas enters the inner side of the shielding body through the one-way valve. The airflow formed passes through the tube body, and the airflow takes away the dust in the tube body and is finally sucked into the vacuum assembly, reducing the pollution of dust to the environment.

[0020] Compared with the prior art, the supersonic flame spraying equipment and the spraying method described in the present invention have the following advantages:

[0021] (1) According to the present invention, before spraying, the tube body is first placed on the positioning assembly for positioning, and then three detachable shielding bodies are combined and covered at the front end of the tube body to isolate the front end of the tube body from the outside, which is beneficial to prevent the dust generated by spraying from entering the external environment. After the spraying is completed, the rear end of the tube body is sucked by the dust suction assembly, and the air flow passes through the one-way valve, the inner side of the shielding body and the tube body in turn. The air flow will take away the dust in the isolated space, and the dust will be collected by the dust suction assembly, reducing the impact of the dust generated by spraying on the working environment.

[0022] (2) A first spiral channel is formed in the ventilation hood of the present invention, and the air flow will generate a swirl in the first spiral channel. The vortex formed by the spiral flow can enhance the local turbulence intensity in the channel, promote the separation of dust and discharge it with the main air flow; the spiral body is a tapered spiral, and the first spiral channel is a tapered spiral channel. The cross-section of the spiral channel gradually decreases along the flow direction, forming a structure that accelerates the air flow, increases the conveying speed, and reduces the risk of deposition.

[0023] Before the first shielding body, the second shielding body and the third shielding body are combined, space is left between the first shielding body, the second shielding body and the third shielding body to provide room for the passage of the supersonic flame spraying assembly. The first opening is set on the surface of the rotating rod. The rotating rod can support the nozzle in the tube body through the shielding body, and the rotating rod can move or rotate in the first opening, thereby driving the nozzle to move or rotate in the tube body, so as to achieve dust isolation while providing conditions for the movement and rotation of the nozzle in the tube body.

[0024] Before processing, the model of the tube body will be input into the controller first. The first identification camera can identify the first marking body formed by the splicing body, and then identify the type of the blocking body to determine whether it is consistent with the input tube body model. When the identified blocking body is not suitable for the tube body, the controller can be requested to start the three first motors to drive the threaded rods to rotate and drive the three clamps to cancel the clamping, which is conducive to ensuring the adaptability of the blocking body and the tube body.

[0025] By plugging the docking block into the plug-in slot, the sealing ring can be detachable and replaced. According to the thickness of the tube body, sealing rings with different inner ring diameters are selected to adapt to the caliber of the tube body to avoid blocking the rear end of the tube body and affecting the full spraying of the nozzle. By setting a second recognition camera, the second marker can be identified to identify the type of sealing ring to match the model of the tube body. When the model does not match, based on the information that the sealing ring corresponding to the second marker body identified by the second recognition camera does not match the tube body, the controller is requested to control the first motor to turn off, so as to avoid the staff from controlling the first motor to start through the controller, and always keep it in a state to be replaced.

[0026] By merging the first channel body, the second channel body and the third channel body, a second spiral channel is formed, so that the airflow passing through the one-way valve will pass through the second spiral channel, and the airflow passing through the second spiral channel will generate a vortex, and the vortex passing through the second spiral channel will enter the tube body, forming a vortex inside the tube body. The vortex destroys the dust adhesion stability through continuous rotational shear force, reduces dust accumulation on the inner wall of the tube body, and takes away the uncoated powder inside the tube body and on the inner wall of the tube body, which is beneficial to improve the dust cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings, which constitute part of the present invention, are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0028] Figure 1 This is a flow chart of the method described in an embodiment of the present invention;

[0029] Figure 2This is a first overall structural diagram of a supersonic flame spraying device according to an embodiment of the present invention;

[0030] Figure 3 This is a schematic structural diagram of an annular support body, a tube body, a shielding body, and a clamping assembly of a supersonic flame spraying device according to an embodiment of the present invention;

[0031] Figure 4 for Figure 3 Enlarged view of part A;

[0032] Figure 5 This is a structural cross-sectional view of a vent joint of a supersonic flame spraying device according to an embodiment of the present invention;

[0033] Figure 6 This is a structural cross-sectional view of a nozzle of a supersonic flame spraying device according to an embodiment of the present invention;

[0034] Figure 7 This is a first structural schematic diagram of a first shielding body, a second shielding body, and a third shielding body of a supersonic flame spraying device according to an embodiment of the present invention;

[0035] Figure 8 This is a second structural schematic diagram of the first shielding body, the second shielding body, and the third shielding body of a supersonic flame spraying equipment according to an embodiment of the present invention;

[0036] Figure 9 This is a schematic structural diagram of a clamping jaw of a supersonic flame spraying device according to an embodiment of the present invention;

[0037] Figure 10 This is a schematic structural diagram of a third shielding body of a supersonic flame spraying device according to an embodiment of the present invention;

[0038] Figure 11 This is a schematic structural diagram of a second shielding body of a supersonic flame spraying device according to an embodiment of the present invention;

[0039] Figure 12 This is a schematic structural diagram of a first shielding body of a supersonic flame spraying device according to an embodiment of the present invention;

[0040] Figure 13 This is a schematic structural diagram of a second spiral channel of a supersonic flame spraying device according to an embodiment of the present invention;

[0041] Figure 14 This is a second overall structural diagram of a supersonic flame spraying device according to an embodiment of the present invention;

[0042] Figure 15 for Figure 14 Enlarged view of part B;

[0043] Figure 16 A structural cross-sectional view of a vent hood of a supersonic flame spraying device according to an embodiment of the present invention;

[0044] Figure 17 This is a structural cross-sectional view of a sealing ring of a supersonic flame spraying device according to an embodiment of the present invention.

[0045] Description of reference numerals:

[0046] 1-moving chamber; 2-rotating rod; 3-first gear; 4-second motor; 5-driving gear; 6-nozzle; 601-mixing chamber; 602-injection port; 7-spark head; 8-support platform; 9-hose; 10-airway; 11-ventilation connector; 12-mounting frame; 13-third motor; 14-support base; 15-annular support body; 16-ventilation cover; 17-lap ring; 18-sealing ring; 19-ventilation channel; 20-tube; 21-spiral body; 22-first motor; 23-threaded rod; 24-clamping claw; 25-track; 26-first shielding body; 27-second shielding body; 2 8-third shielding body; 29-first opening; 30-second opening; 31-shielding cavity; 32-positioning sleeve; 33-electromagnet; 34-magnetic plug-in body; 35-joining body; 36-plug-in slot; 37-docking block; 38-second marking body; 39-second recognition camera; 40-controller; 41-second spiral channel; 42-first channel body; 43-second channel body; 44-third channel body; 45-vacuum cleaner; 46-suction pipe; 47-first marking body; 48-one-way valve; 49-support frame; 4901-first surface; 4902-second surface; 50-first recognition camera. DETAILED DESCRIPTION

[0047] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0049] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0050] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0051] like Figures 2 to 17 As shown, in one embodiment, a supersonic flame spraying device includes a supersonic flame spraying component and a positioning component, the positioning component is used to clamp and position the pipe body 20, the front end of the positioning component is provided with a shielding component, the shielding component is used to shield the front end of the pipe body 20, the shielding component includes three detachable shielding bodies, the front faces of the three shielding bodies are fixedly connected to a one-way valve 48, the three detachable shielding bodies cover the spraying end of the supersonic flame spraying component, the rear end of the positioning component is provided with a dust suction component, the dust suction component is used to connect the rear end of the pipe body 20 shielded and isolated by the shielding component.

[0052] Specifically, the supersonic flame spraying assembly includes a moving chamber 1, a rotating rod 2 is rotatably connected inside the moving chamber 1, both ends of the rotating rod 2 pass through the moving chamber 1 and extend to the outside of the moving chamber 1, a first gear 3 is fixedly connected to the surface of the rotating rod 2, a second motor 4 is also fixedly installed inside the moving chamber 1, the output end of the second motor 4 is fixedly connected to the driving gear 5, the driving gear 5 is engaged with the first gear 3, a nozzle 6 is provided at the rear end of the rotating rod 2, the nozzle 6 includes a mixing chamber 601 and an injection port 602, and a spark head 7 is fixedly inserted on the inner wall of the mixing chamber 601;

[0053] A support platform 8 is slidably mounted on the bottom of the mobile chamber 1 to enable the mobile chamber 1 to be movable.

[0054] Both sides of the nozzle 6 are connected to a hose 9. The front end of the rotating rod 2 is provided with two air passages 10. The rear ends of the two air passages 10 are fixedly connected to the two hoses 9 respectively. The front end of the rotating rod 2 is rotatably connected to a vent joint 11. The vent joint 11 is used to inject a mixture of metal powder, oxygen and natural gas.

[0055] A mounting bracket 12 is rotatably connected to the surface of the nozzle 6, and the mounting bracket 12 is fixedly connected to the rear end of the rotating rod 2. A third motor 13 is fixedly connected to the mounting bracket 12, and the output end of the third motor 13 is fixedly connected to the nozzle 6. The nozzle 6 is driven to rotate by the third motor 13 to adjust the spraying angle of the nozzle 6.

[0056] It should be understood that the rotating rod 2 is driven by the moving chamber 1 to move and insert into the tube body 20, and the rotating rod 2 synchronously drives the spray head 6 into the tube body 20, and the second motor 4 drives the driving gear 5 to rotate, and the driving gear 5 drives the first gear 3 to rotate, and the first gear 3 drives the rotating rod 2 to rotate, thereby realizing the rotation spraying of the spray head 6;

[0057] By starting the third motor 13, the third motor 13 drives the nozzle 6 to rotate, thereby adjusting the spraying angle.

[0058] By setting the air passage 10, the hose 9 and the vent connector 11, a mixture of metal powder, oxygen and natural gas can be introduced into the rotatable nozzle 6 hidden in the tube body 20 to ignite and burn.

[0059] Before spraying, the tube body 20 is first placed on the positioning assembly for positioning, and then three detachable shielding bodies are combined and covered at the front end of the tube body 20 to isolate the front end of the tube body 20 from the outside, which is beneficial to prevent the dust generated by spraying from entering the external environment. After the spraying is completed, the rear end of the tube body 20 is sucked in by the dust suction assembly, and the air flow passes through the one-way valve 48, the inner side of the shielding body and the tube body 20 in turn. The air flow will take away the dust in the isolated space, and the dust is collected by the dust suction assembly, reducing the impact of the dust generated by spraying on the working environment.

[0060] like Figure 2 、 Figure 3 、 Figure 4 and Figure 17 As shown, in one embodiment, the positioning assembly includes a support base 14, an annular support body 15 is fixedly connected to the top of the support base 14, a breather cover 16 is fixedly connected to the inner annular surface of the annular support body 15, a lap ring 17 is fixedly connected to the inner wall of the breather cover 16, a sealing ring 18 is plugged into the front end of the breather cover 16, the sealing ring 18 is mounted on the front face of the lap ring 17, the inner annular space of the sealing ring 18 is a ventilation channel 19, a tube body 20 is abutted on the end face of the sealing ring 18, and a clamping assembly is provided on the end face of the annular support body 15, and the clamping assembly is used to clamp and position the outer surface of the tube body 20;

[0061] A spiral body 21 is fixedly connected to the inner wall of the ventilation cover 16 . The spiral body 21 is a tapered spiral. A first spiral channel is formed between the spiral body 21 and the inner wall of the ventilation cover 16 .

[0062] It should be understood that during the suction process of the dust collection assembly, negative pressure will be generated in the communication space formed by the vent hood 16, the tube body 20 and the shielding body. Under the action of pressure, the external air will pass through the one-way valve 48. The gas entering the one-way valve 48 will form an airflow. The airflow will pass through the shielding body, the tube body 20 and the vent hood 16 in sequence and then enter the dust collection assembly. The airflow will carry away the dust in the communication space formed by the vent hood 16, the tube body 20 and the shielding body, and will eventually be sucked and collected by the dust collection assembly.

[0063] A first spiral channel is formed in the vent hood 16. The airflow generates a swirl in the first spiral channel. The vortex formed by the spiral flow can enhance the local turbulence intensity in the channel, promote dust separation and discharge with the main airflow;

[0064] The spiral body 21 is a tapered spiral, and the first spiral channel is a tapered spiral channel. The cross section of the spiral channel gradually decreases along the flow direction, forming a structure that accelerates the airflow, increases the conveying speed, and reduces the risk of deposition.

[0065] like Figure 2 、 Figure 3 and Figure 9As shown, in one embodiment, the clamping assembly includes three first motors 22, which are fixedly mounted on the end surface of the annular support body 15 and arranged in an annular array with the annular support body 15 as a reference. The output ends of the three first motors 22 are all fixedly connected to threaded rods 23, and the surfaces of the three threaded rods 23 are all threadedly connected to clamping jaws 24. The clamping jaws 24 are slidably connected to the surface of the annular support body 15 via rails 25. It should be understood that after the tube 20 is placed against the surface of the sealing ring 18, the three first motors 22 are synchronously started, and the three first motors 22 respectively drive the three threaded rods 23 to rotate. The three threaded rods 23 threadably drive the three clamping jaws 24 to move, clamping the tube 20 in the center so that the rear end of the tube 20 is aligned with the ventilation channel 19 of the sealing ring 18, so that the rear end of the tube 20 is connected to the ventilation channel 19, providing conditions for the subsequent airflow. In order to improve the sealing between the tube 20 and the sealing ring 18, a rubber sealing gasket can be provided between the sealing ring 18 and the rear end of the tube 20.

[0066] like Figure 2 、 Figure 3 、 Figure 10 、 Figure 11 、 Figure 12 、 Figure 13 As shown, in one embodiment, the three detachable shielding bodies are a first shielding body 26, a second shielding body 27 and a third shielding body 28. The first shielding body 26, the second shielding body 27 and the third shielding body 28 are combined to form a first opening 29, a second opening 30 and a shielding cavity 31. The second opening 30 is used to be sleeved on the surface of the tube body 20, and the shielding cavity 31 is covered at the front end of the tube body 20. It should be understood that before the first shielding body 26, the second shielding body 27 and the third shielding body 28 are combined, space is left between the first shielding body 26, the second shielding body 27 and the third shielding body 28 to provide space for the passage of the supersonic flame spraying assembly. The first opening 29 is set on the surface of the rotating rod 2. The rotating rod 2 can support the nozzle 6 in the tube body 20 through the shielding body, and the rotating rod 2 can move or rotate in the first opening 29, thereby driving the nozzle 6 to move or rotate in the tube body 20, so as to achieve the purpose of providing conditions for the movement and rotation of the nozzle 6 in the tube body 20 while the dust is blocked and isolated.

[0067] like Figure 2 、 Figure 3 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 、 Figure 13As shown, in one embodiment, the ends of the three clamping jaws 24 are fixedly connected with positioning sleeves 32, and the three positioning sleeves 32 are fixedly installed with electromagnets 33. The surfaces of the first shielding body 26, the second shielding body 27 and the third shielding body 28 are fixedly connected with magnetic plug-in bodies 34. The three magnetic plug-in bodies 34 are respectively inserted into the three positioning sleeves 32, and the three magnetic plug-in bodies 34 are magnetically connected to the three electromagnets 33 respectively. It should be understood that by energizing the electromagnet 33, the magnetic plug-in body 34 inserted into the positioning sleeve 32 can be magnetically fixed, and then the first shielding body 26, the second shielding body 27 and the third shielding body 28 are respectively installed on the three clamping jaws 24. As the clamping jaws 24 clamp the tube body 20, the first shielding body 26, the second shielding body 27 and the third shielding body 28 are synchronously driven to merge, so that the first opening 29 is sleeved on the surface of the rotating rod 2, and the second opening 30 is sleeved on the surface of the tube body 20, thereby shielding and isolating the front end of the tube body 20;

[0068] And by cutting off the power of the electromagnet 33, the electromagnet 33 can cancel the magnetic fixation of the magnetic plug-in body 34, and the magnetic plug-in body 34 can be removed from the positioning sleeve 32, thereby realizing the disassembly of the first shielding body 26, the second shielding body 27 and the third shielding body 28 from the three clamping jaws 24, thereby realizing the replacement of the first shielding body 26, the second shielding body 27 and the third shielding body 28. Different types of shielding bodies can be selected according to the thickness of the tube body 20 to form second openings 30 of different calibers.

[0069] like Figure 2 、 Figure 3 、 Figure 4 and Figure 7 As shown, in one embodiment, a splicing body 35 is fixedly connected to each of the first shielding body 26 and the second shielding body 27. The two splicing bodies 35 are combined to form a complete first marking body 47. A support frame 49 is fixedly connected to the surface of the annular support body 15, and a first recognition camera 50 is fixedly mounted on the first surface 4901 of the support frame 49. It should be understood that before processing, the model of the tube body 20 is first input into the controller 40. The first recognition camera 50 can recognize the first marking body 47 formed by the splicing body 35, and then identify the type of the shielding body to determine whether it matches the input tube body 20 model. If the identified shielding body is not suitable for the tube body 20, the controller 40 can be requested to start the three first motors 22 to drive the threaded rod 23 to rotate, driving the three clamping jaws 24 to cancel the clamping, which is conducive to ensuring the compatibility of the shielding body with the tube body 20.

[0070] like Figure 3 、 Figure 4 and Figure 17As shown, in one embodiment, three insertion slots 36 are provided at the end of the vent hood 16, and docking blocks 37 are slidably inserted into the three insertion slots 36. The three docking blocks 37 are fixedly connected to the edge of the sealing ring 18. A second marking body 38 is fixedly connected to the surface of one of the docking blocks 37, and a second recognition camera 39 is fixedly connected to the second surface 4902 of the support frame 49. It should be understood that the sealing ring 18 can be detached and replaced by plugging the docking blocks 37 into the insertion slots 36. According to the thickness of the tube body 20, a sealing ring 18 with a different inner ring diameter can be selected to adapt to the caliber of the tube body 20 to avoid blocking the rear end of the tube body 20 and affecting the sufficient spraying of the nozzle 6.

[0071] By setting up a second recognition camera 39, the second marking body 38 can be identified, and the type of the sealing ring 18 can be identified to match it with the model of the tube body 20. When the model does not match, based on the information that the sealing ring 18 corresponding to the second marking body 38 does not match the tube body 20 identified by the second recognition camera 39, the controller 40 is requested to control the first motor 22 to turn off, so as to avoid the staff controlling the first motor 22 to start through the controller 40, and always keep it in a state to be replaced.

[0072] Specifically, the controller 40 is fixedly mounted on the support base 14 .

[0073] like Figure 2 、 Figure 3 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 、 Figure 13 As shown, in one embodiment, a second spiral channel 41 is fixedly connected to the inner edge of the first opening 29 formed by the first shielding body 26, the second shielding body 27 and the third shielding body 28, and the second spiral channel 41 includes a first channel body 42, a second channel body 43 and a third channel body 44. The first channel body 42, the second channel body 43 and the third channel body 44 are fixedly connected to the inner walls of the first shielding body 26, the second shielding body 27 and the third shielding body 28 respectively, and the first opening 29 is connected to the port of the second spiral channel 41. It should be understood that the second spiral channel 41 is formed by merging the first channel body 42, the second channel body 43 and the third channel body 44, so that the airflow passing through the one-way valve 48 will pass through the second spiral channel 41, and the airflow passing through the second spiral channel 41 will generate a vortex, and the vortex passing through the second spiral channel 41 will enter the tube body 20, forming a vortex in the tube body 20. The vortex destroys the dust adhesion stability through continuous rotational shear force, reduces dust accumulation on the inner wall of the tube body, and takes away the uncoated powder in the tube body 20 and on the inner wall of the tube body 20, which is beneficial to improve the effect of cleaning dust.

[0074] like Figure 2 and Figure 14 As shown, in one embodiment, the dust collection assembly includes a dust collector 45, the dust collection end of the dust collector 45 is fixedly connected to an air suction pipe 46, and the end of the air suction pipe 46 away from the dust collector 45 is fixedly connected to the rear end of the vent hood 16. It should be understood that the provision of the dust collector 45 plays a role in providing air force, and the dust collector 45 can automatically filter and collect the sucked air.

[0075] like Figure 1 As shown, in one embodiment, a supersonic flame spraying method includes the following steps:

[0076] Step 1: Positioning the tube body 20: Positioning the tube body 20 using a positioning assembly;

[0077] Step 2: Shielding and Isolation: By combining three separable shielding bodies and setting the shield at the front end of the tube body 20, the front end of the tube body 20 is shielded and isolated, so that the injection end of the supersonic flame spraying assembly is isolated inside the tube body 20 and the shielding body, so that the dust generated by the powder spraying is isolated inside the tube body 20 and the shielding body;

[0078] Step 3: Dust collection: The rear end of the tube body 20 is vacuumed by the vacuum assembly. The gas enters the inner side of the shielding body through the one-way valve 48. The formed airflow passes through the tube body 20. The airflow takes away the dust in the tube body 20 and is finally sucked in by the vacuum assembly, reducing the pollution of dust to the environment.

[0079] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A supersonic flame spraying device, comprising a supersonic flame spraying assembly, characterized in that: The apparatus further comprises a positioning assembly, the positioning assembly being used to clamp and position the tube body (20), a shielding assembly being provided at the front end of the positioning assembly, the shielding assembly being used to shield the front end of the tube body (20), the shielding assembly comprising three detachable shielding bodies, the front faces of the three shielding bodies being fixedly connected to a one-way valve (48), the three detachable shielding bodies covering the spraying end of the supersonic flame spraying assembly, a dust suction assembly being provided at the rear end of the positioning assembly, the dust suction assembly being used to communicate with the rear end of the tube body (20) shielded and isolated by the shielding assembly; The positioning assembly comprises a support seat (14), and the top of the support seat (14) is fixedly connected to an annular support body (15); A clamping assembly is provided on the end surface of the annular support body (15), and the clamping assembly is used to clamp and position the outer surface of the tube body (20); The clamping assembly comprises three first motors (22), the three first motors (22) are fixedly mounted on the end surface of the annular support body (15), and are distributed in an annular array with the annular support body (15) as a reference, the output ends of the three first motors (22) are all fixedly connected to threaded rods (23), the surfaces of the three threaded rods (23) are all threadedly connected to clamping claws (24), and the clamping claws (24) are slidably connected to the surface of the annular support body (15) via rails (25); The three detachable shielding bodies are respectively a first shielding body (26), a second shielding body (27) and a third shielding body (28); the first shielding body (26), the second shielding body (27) and the third shielding body (28) are combined to form a first opening (29), a second opening (30) and a shielding cavity (31); the second opening (30) is used to be sleeved on the surface of the tube body (20); and the shielding cavity (31) is covered at the front end of the tube body (20); The ends of the three clamping jaws (24) are fixedly connected to positioning sleeves (32), and the three positioning sleeves (32) are fixedly installed with electromagnets (33). The surfaces of the first shielding body (26), the second shielding body (27) and the third shielding body (28) are fixedly connected to magnetic plug-in bodies (34), and the three magnetic plug-in bodies (34) are respectively inserted into the three positioning sleeves (32). The three magnetic plug-in bodies (34) are magnetically connected to the three electromagnets (33) respectively.

2. The supersonic flame spraying equipment according to claim 1, characterized in that: A vent hood (16) is fixedly connected to the inner annular surface of the annular support body (15), a lap ring (17) is fixedly connected to the inner wall of the vent hood (16), a sealing ring (18) is inserted into the front end of the vent hood (16), the sealing ring (18) is mounted on the front face of the lap ring (17), the inner annular space of the sealing ring (18) is a vent channel (19), and a tube body (20) is abutted against the end face of the sealing ring (18); A spiral body (21) is fixedly connected to the inner wall of the ventilation cover (16), and the spiral body (21) is a tapered spiral. A first spiral channel is formed between the spiral body (21) and the inner wall of the ventilation cover (16).

3. The supersonic flame spraying equipment according to claim 2, characterized in that: The first shielding body (26) and the second shielding body (27) are respectively fixedly connected to a splicing body (35), and the two splicing bodies (35) are combined to form a complete first marking body (47). A support frame (49) is fixedly connected to the surface of the annular support body (15), and a first recognition camera (50) is fixedly mounted on the first surface (4901) of the support frame (49).

4. The supersonic flame spraying equipment according to claim 3, characterized in that: The end of the ventilation cover (16) is provided with three plug-in slots (36), and docking blocks (37) are slidably plugged into the three plug-in slots (36). The three docking blocks (37) are fixedly connected to the edge of the sealing ring (18), and a second marking body (38) is fixedly connected to the surface of one of the docking blocks (37). A second identification camera (39) is fixedly connected to the second surface (4902) of the support frame (49).

5. The supersonic flame spraying equipment according to claim 1, characterized in that: A second spiral channel (41) is fixedly connected to the inner edge of the first through-hole (29) formed by the first shielding body (26), the second shielding body (27) and the third shielding body (28); the second spiral channel (41) comprises a first channel body (42), a second channel body (43) and a third channel body (44); the first channel body (42), the second channel body (43) and the third channel body (44) are fixedly connected to the inner walls of the first shielding body (26), the second shielding body (27) and the third shielding body (28), respectively; the first through-hole (29) is connected to the end of the second spiral channel (41) by docking.

6. The supersonic flame spraying equipment according to claim 1, characterized in that: The dust collection assembly comprises a dust collector (45), the dust collection end of the dust collector (45) is fixedly connected to an air suction pipe (46), and one end of the air suction pipe (46) away from the dust collector (45) is fixedly connected to the rear end of the ventilation cover (16).

7. A supersonic flame spraying method, applicable to the supersonic flame spraying equipment according to claim 1, characterized in that: The following steps are involved: Step 1: Positioning the tube body (20): Positioning the tube body (20) using a positioning assembly; Step 2, shielding and isolating: by combining three separable shielding bodies, the shield is arranged at the front end of the tube body (20), and the front end of the tube body (20) is shielded and isolated, so that the injection end of the supersonic flame spraying component is isolated inside the tube body (20) and the shielding body, so that the dust generated by the powder spraying is isolated inside the tube body (20) and the shielding body; Step 3, dust collection: The rear end of the tube body (20) is vacuumed by the vacuum assembly, and the gas enters the inner side of the shielding body through the one-way valve (48). The formed airflow passes through the tube body (20), and the airflow takes away the dust in the tube body (20) and is finally sucked into the vacuum assembly, thereby reducing the pollution of the dust to the environment.

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