Supersonic flame spraying equipment and spraying method thereof

Abstract

The invention provides high velocity oxy-fuel spraying equipment and a spraying method thereof.The high velocity oxy-fuel spraying equipment comprises a high velocity oxy-fuel spraying assembly and further comprises a positioning assembly, a shielding assembly is arranged at the front end of the positioning assembly and used for shielding the front end of a pipe body, and the shielding assembly comprises three separable shielding bodies; the front faces of the three shielding bodies fixedly communicate with one-way valves, and a dust collection assembly is arranged at the rear end of the positioning assembly. Before spraying, the pipe body is arranged on the positioning assembly, then the three separable shielding bodies are combined to cover the front end of the pipe body, the front end of the pipe body is isolated from the outside, dust generated by spraying is prevented from entering the external environment, after spraying is completed, the rear end of the pipe body is sucked through the dust suction assembly, and the dust suction efficiency is improved. Air flow sequentially passes through the one-way valve, the inner side of the shielding body and the pipe body, the air flow can take away dust in the isolation space, the dust is collected by the dust collection assembly, and the influence of the dust generated by spraying on the working environment is reduced.

Description

Technical Field

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

[0002] The supersonic flame spraying device mainly includes a gas supply unit, a feeding unit and a spray gun. The gas supply unit supplies combustible gas and oxygen into the combustion chamber inside the spray gun, and the feeding unit supplies spraying materials into the combustion chamber of the spray gun. The combustible gas and oxygen burn inside the combustion chamber to melt the spraying materials, and the melted spraying materials are ejected from the nozzle along with the heat flow and sprayed onto the surface of the workpiece to form a coating.

[0003] During the process of flame spraying the inner wall of a tubular body, the spray head moves and sprays inside the tubular body. During the spraying process, both ends of the tubular body are in an open state, and the scattered powder generated by supersonic spraying will float out from the ports of the tubular body, causing pollution to the external environment. Summary of the Invention

[0004] In view of this, the present invention aims to provide a supersonic flame spraying device to solve the technical problem that during the process of flame spraying the inner wall of a tubular body, the spray head moves and sprays inside the tubular body. During the spraying process, both ends of the tubular body are in an open state, and the scattered powder generated by supersonic spraying will float out from the ports of the tubular body, causing pollution to the external environment.

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

[0006] In a first aspect, a supersonic flame spraying device is provided, which includes a supersonic flame spraying assembly, and further includes a positioning assembly for clamping and positioning a tubular body. A shielding assembly is provided at the front end of the positioning assembly for shielding the front end of the tubular body. The shielding assembly includes three separable shielding bodies. One-way valves are fixedly communicated with the front surfaces of the three shielding bodies. The three separable shielding bodies shroud the spraying end of the supersonic flame spraying assembly. A dust suction assembly is provided at the rear end of the positioning assembly for communicating with the rear end of the tubular body shielded and isolated by the shielding assembly.

[0007] Preferably, the positioning assembly includes a support seat. A circular support body is fixedly connected to the top of the support seat. An air vent cover is fixedly connected to the inner ring surface of the circular support body. A lapping ring is fixedly connected to the inner wall of the air vent cover. A sealing ring is inserted into the front end of the air vent cover. The sealing ring is lapped on the front surface of the lapping ring. The inner ring space of the sealing ring is an air vent passage. A tubular body abuts against the end surface of the sealing ring. A clamping assembly is provided on the end surface of the circular support body for clamping and positioning the outer surface of the tubular 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 with clamps, and the clamps are slidably connected to the surface of the annular support body via a track.

[0010] Preferably, the three separable shielding bodies are respectively a first shielding body, a second shielding body and a third shielding body, which form a first opening, a second opening and a shielding cavity when combined, 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 component includes a vacuum cleaner, and a suction pipe is fixedly communicated with the dust suction end of the vacuum cleaner. The end of the suction pipe away from the vacuum cleaner is fixedly communicated with the rear end of the ventilation hood.

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

[0017] Step 1, pipe positioning: position the pipe through a positioning component;

[0018] Step 2, shielding and isolation: merge three separable shielding bodies to cover the front end of the pipe, shielding and isolating the front end of the pipe, so that the spraying end of the supersonic flame spraying component is isolated inside the pipe and the shielding body, and the dust generated by powder spraying is isolated inside the pipe and the shielding body;

[0019] Step 3, dust collection treatment: suck the rear end of the pipe through a dust collection component, the gas enters the inside of the shielding body through a one-way valve, the formed air flow passes through the pipe, the air flow takes away the dust inside the pipe, and finally is sucked by the dust collection component, reducing the pollution of the dust to the environment.

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

[0021] (1) Before spraying, the pipe is first placed on the positioning component for positioning, and then three separable shielding bodies are merged to cover the front end of the pipe, isolating the front end of the pipe from the outside, which is beneficial to preventing the dust generated by spraying from entering the external environment. And after spraying, the rear end of the pipe is sucked through the dust collection component, the air flow passes through the one-way valve, the inside of the shielding body and the pipe in sequence, and the air flow will take away the dust in the isolation space. The dust is collected by the dust collection component, 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 a swirl flow will be generated when the air flow is in the first spiral channel. The eddy current formed by the spiral flow can enhance the local turbulence intensity in the channel, promote the dust stripping and discharge 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 shrinks along the flow direction, forming a structure for accelerating the air flow, improving the conveying speed and reducing the deposition risk.

[0023] Before the first baffle, the second baffle, and the third baffle are combined, a space is left between the first baffle, the second baffle, and the third baffle to provide a clearance space for the passage of the supersonic flame spraying assembly. The first through-hole is arranged on the surface of the rotating rod. The rotating rod can support the nozzle in the pipe body through the baffle, and the rotating rod can move or rotate within the first through-hole, thereby driving the nozzle to move or rotate within the pipe body, realizing the condition for the movement and rotation of the nozzle within the pipe body while the dust is shielded and isolated.

[0024] Before processing, the model of the pipe 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 baffle to determine whether it matches the input pipe body model. When the identified baffle is not suitable for the pipe body, the controller can be requested to start three first motors to drive the threaded rod to rotate, driving the three jaws to cancel the clamping, which is beneficial to ensuring the adaptability of the baffle to the pipe body.

[0025] Through the insertion of the docking block into the insertion slot, the detachable of the sealing ring can be realized, and the sealing ring can be replaced. According to the thickness of the pipe body, a sealing ring with a different inner ring diameter can be selected to adapt to the diameter of the pipe body, avoiding the situation of shielding the rear end of the pipe body and affecting the full spraying of the nozzle; by setting the second identification camera, the second marking body can be identified, and the type of the sealing ring can be identified to match the model of the pipe body. When the models do not match, based on the information that the sealing ring corresponding to the second marking body identified by the second identification camera does not match the pipe body, the controller is requested to control the first motor to close, preventing the staff from controlling the first motor to start through the controller and always keeping it in a state to be replaced.

[0026] Through the combination of 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. The airflow passing through the second spiral channel will generate a swirl, and the swirl passing through the second spiral channel will enter the pipe body and form a swirl within the pipe body. The swirl will destroy the adhesion stability of the dust through continuous rotational shear force, reduce the dust accumulation on the inner wall of the pipe body, and carry away the powder that has not been coated on the inner wall and within the pipe body, which is beneficial to improving the effect of dust cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings forming a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0028] Figure 1 is the flowchart of the method according to the embodiment of the present invention;

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

[0030] Figure 3 Schematic diagram of the structures of an annular support, a pipe 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 in

[0032] Figure 5 Structural sectional view of an air vent joint of a supersonic flame spraying device according to an embodiment of the present invention;

[0033] Figure 6 Structural sectional view of a nozzle of a supersonic flame spraying device according to an embodiment of the present invention;

[0034] Figure 7 First 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 Second 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;

[0036] Figure 9 Schematic diagram of the structure of a clamping jaw of a supersonic flame spraying device according to an embodiment of the present invention;

[0037] Figure 10 Schematic diagram of the structure of a third shielding body of a supersonic flame spraying device according to an embodiment of the present invention;

[0038] Figure 11 Schematic diagram of the structure of a second shielding body of a supersonic flame spraying device according to an embodiment of the present invention;

[0039] Figure 12 Schematic diagram of the structure of a first shielding body of a supersonic flame spraying device according to an embodiment of the present invention;

[0040] Figure 13 Schematic diagram of the structure of a second spiral channel of a supersonic flame spraying device according to an embodiment of the present invention;

[0041] Figure 14 Second schematic diagram of the overall structure 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 in

[0043] Figure 16 Structural sectional view of the air vent cover of a supersonic flame spraying device according to an embodiment of the present invention;

[0044] Figure 17 Structural sectional view of the sealing ring of a supersonic flame spraying device according to an embodiment of the present invention.

[0045] Description of the 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 - Air passage; 11 - Air vent joint; 12 - Mounting frame; 13 - Third motor; 14 - Support seat; 15 - Annular support body; 16 - Air vent cover; 17 - Lapping ring; 18 - Sealing ring; 19 - Air vent passage; 20 - Pipe body; 21 - Spiral body; 22 - First motor; 23 - Threaded rod; 24 - Claw; 25 - Track; 26 - First shielding body; 27 - Second shielding body; 28 - Third shielding body; 29 - First port; 30 - Second port; 31 - Shielding chamber; 32 - Positioning sleeve; 33 - Electromagnet; 34 - Magnetic plug-in body; 35 - Splicing body; 36 - Plug-in slot; 37 - Docking block; 38 - Second marking body; 39 - Second identification camera; 40 - Controller; 41 - Second spiral passage; 42 - First passage body; 43 - Second passage body; 44 - Third passage body; 45 - Vacuum cleaner; 46 - Suction pipe; 47 - First marking body; 48 - Check valve; 49 - Support frame; 4901 - First surface; 4902 - Second surface; 50 - First identification camera. Detailed implementation manners

[0047] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0048] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is 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 should not be construed as a limitation on 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 specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0049] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

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

[0051] As Figures 2 to 17 shown, in one embodiment, a supersonic flame spraying device includes a supersonic flame spraying assembly, and further includes a positioning assembly for clamping and positioning a pipe body 20. A shielding assembly is provided at the front end of the positioning assembly for shielding the front end of the pipe body 20. The shielding assembly includes three separable shielding bodies. One-way valves 48 are fixedly communicated with the front surfaces of the three shielding bodies. The three separable shielding bodies enclose the spraying end of the supersonic flame spraying assembly. A dust suction assembly is provided at the rear end of the positioning assembly for communicating with the rear end of the pipe body 20 shielded and isolated by the shielding assembly.

[0052] Specifically, the supersonic flame spraying assembly includes a moving chamber 1. Inside the moving chamber 1, a rotating rod 2 is rotatably connected. Both ends of the rotating rod 2 penetrate 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 a driving gear 5. The driving gear 5 meshes with the first gear 3. A spray head 6 is arranged at the rear end of the rotating rod 2. The spray head 6 includes a mixing chamber 601 and a spraying port 602. A spark plug 7 is fixedly inserted into the inner wall of the mixing chamber 601;

[0053] A support platform 8 is slidably installed at the bottom of the moving chamber 1 to enable the movement of the moving chamber 1.

[0054] Both sides of the spray head 6 are communicated with hoses 9. Two air channels 10 are opened at the front end of the rotating rod 2. The rear ends of the two air channels 10 are fixedly communicated with the two hoses 9 respectively. A ventilation joint 11 is rotatably connected to the front end of the rotating rod 2. The ventilation joint 11 is used for injecting a mixture of metal powder, oxygen and natural gas;

[0055] An installation frame 12 is rotatably connected to the surface of the spray head 6. The installation frame 12 is fixedly connected to the rear end of the rotating rod 2. A third motor 13 is fixedly connected to the installation frame 12. The output end of the third motor 13 is fixedly connected to the spray head 6. By driving the spray head 6 to rotate through the third motor 13, the spraying angle of the spray head 6 can be adjusted.

[0056] It should be understood that the rotating rod 2 moves and inserts into the pipe body 20 under the drive of the moving chamber 1. The rotating rod 2 synchronously drives the spray head 6 into the pipe body 20. By driving the driving gear 5 to rotate through the second motor 4, 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 rotary spraying of the spray head 6;

[0057] By starting the third motor 13, the third motor 13 drives the spray head 6 to rotate, realizing the adjustment of the spraying angle.

[0058] Through the settings of the air channels 10, hoses 9 and ventilation joint 11, it is possible to introduce a mixture of metal powder, oxygen and natural gas into the rotatable spray head 6 blocked inside the pipe body 20 for spark ignition and combustion;

[0059] Before spraying, first set the pipe body 20 on the positioning assembly for positioning. Then, three separable shielding bodies are combined to cover the front end of the pipe body 20, isolating the front end of the pipe body 20 from the outside. This is beneficial to preventing the dust generated by spraying from entering the external environment. And after spraying, the rear end of the pipe body 20 is aspirated through the dust collection assembly. The air flow passes through the one-way valve 48, the inner side of the shielding body and the pipe body 20 in sequence. The air flow will carry away the dust in the isolation space, and the dust is collected by the dust collection assembly, reducing the impact of the dust generated by spraying on the working environment.

[0060] As Figure 2 , Figure 3 , Figure 4 and Figure 17 shown, in one embodiment, the positioning assembly includes a support base 14, a ring-shaped support 15 is fixedly connected to the top of the support base 14, a ventilation hood 16 is fixedly connected to the inner ring surface of the ring-shaped support 15, a lapping ring 17 is fixedly connected to the inner wall of the ventilation hood 16, a sealing ring 18 is inserted into the front end of the ventilation hood 16, the sealing ring 18 is lapped on the front of the lapping ring 17, the inner ring space of the sealing ring 18 is a ventilation channel 19, a pipe body 20 abuts against the end surface of the sealing ring 18, and a clamping assembly is arranged on the end surface of the ring-shaped support 15 for clamping and positioning the outer surface of the pipe body 20;

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

[0062] It should be understood that during the suction process of the dust collection component, a negative pressure will be generated in the communication space formed by the ventilation hood 16, the pipe body 20 and the shielding body. External gas will enter through the one-way valve 48 under the action of pressure. The gas entering the one-way valve 48 will form an air flow. The air flow passes through the shielding body, the pipe body 20 and the ventilation hood 16 in sequence and then enters the dust collection component. The air flow will carry away the dust in the communication space formed by the ventilation hood 16, the pipe body 20 and the shielding body, and finally be sucked and collected by the dust collection component;

[0063] A first spiral channel is formed in the ventilation hood 16. The air flow will generate a swirl in the first spiral channel. The eddy current formed by the spiral flow can enhance the local turbulence intensity in the channel, promote the dust stripping and discharge with the main air flow;

[0064] The spiral body 21 is a tapered spiral. The first spiral channel is a tapered spiral channel. The cross-section of the spiral channel gradually shrinks along the flow direction, forming a structure for accelerating the air flow, improving the conveying speed and reducing the deposition risk.

[0065] As Figure 2 , Figure 3 and Figure 9As shown, in one embodiment, the clamping assembly includes three first motors 22. The three first motors 22 are fixedly installed on the end face of the annular support 15 and are distributed in an annular array with the annular support 15 as a reference. The output ends of the three first motors 22 are fixedly connected with threaded rods 23. Claws 24 are threadedly connected to the surfaces of the three threaded rods 23. The claws 24 are slidably connected to the surface of the annular support 15 through a track 25. It should be understood that after the pipe body 20 is abutted against the surface of the sealing ring 18, the three first motors 22 are started synchronously. The three first motors 22 drive the three threaded rods 23 to rotate respectively. The three threaded rods 23 threadedly drive the three claws 24 to move, clamping the pipe body 20 in the center, so that the rear end of the pipe body 20 is aligned with the air vent 19 of the sealing ring 18, and the rear end of the pipe body 20 is communicated with the air vent 19, providing conditions for the later airflow to pass through. In order to improve the sealing performance between the pipe body 20 and the sealing ring 18, a rubber gasket can be provided between the sealing ring 18 and the rear end of the pipe body 20.

[0066] As Figure 2 , Figure 3 , Figure 10 , Figure 11 , Figure 12 , Figure 13 As shown, in one embodiment, the three separable shielding bodies are a first shielding body 26, a second shielding body 27, and a third shielding body 28 respectively. After the first shielding body 26, the second shielding body 27, and the third shielding body 28 are combined, a first through hole 29, a second through hole 30, and a shielding cavity 31 are formed. The second through hole 30 is used to sleeved on the surface of the pipe body 20, and the shielding cavity 31 covers the front end of the pipe 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, a space is left between the first shielding body 26, the second shielding body 27, and the third shielding body 28 to provide a space for the passage of the supersonic flame spraying assembly. The first through hole 29 is arranged on the rotating rod 2. The rotating rod 2 can support the spray head 6 in the pipe body 20 through the shielding body, and the rotating rod 2 can move or rotate in the first through hole 29, thereby driving the spray head 6 to move or rotate in the pipe body 20, realizing the movement and rotation of the spray head 6 in the pipe body 20 while the dust is shielded and isolated.

[0067] As Figure 2 , Figure 3 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13As shown, in one embodiment, positioning sleeves 32 are fixedly connected to the ends of the three jaws 24. Electromagnets 33 are fixedly installed in the three positioning sleeves 32. Magnetic plug connectors 34 are fixedly connected to the surfaces of the first shielding body 26, the second shielding body 27, and the third shielding body 28. The three magnetic plug connectors 34 are respectively inserted into the three positioning sleeves 32, and the three magnetic plug connectors 34 are magnetically connected to the three electromagnets 33 respectively. It should be understood that by energizing the electromagnets 33, the magnetic plug connectors 34 inserted into the positioning sleeves 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 jaws 24. As the jaws 24 clamp the pipe body 20, the first shielding body 26, the second shielding body 27, and the third shielding body 28 are synchronously driven to combine, so that the first through hole 29 is sleeved on the surface of the rotating rod 2, and the second through hole 30 is sleeved on the surface of the pipe body 20 to shield and isolate the front end of the pipe body 20;

[0068] And by de-energizing the electromagnets 33, the electromagnets 33 can cancel the magnetic fixation of the magnetic plug connectors 34, and the magnetic plug connectors 34 are removed from the positioning sleeves 32. Then, the first shielding body 26, the second shielding body 27, and the third shielding body 28 can be disassembled from the three jaws 24, and then the first shielding body 26, the second shielding body 27, and the third shielding body 28 can be replaced. Different models of shielding bodies can be selected according to the thickness of the pipe body 20, so as to form second through holes 30 with different diameters.

[0069] As Figure 2 、 Figure 3 、 Figure 4 And Figure 7 As shown, in one embodiment, splicing bodies 35 are fixedly connected to the first shielding body 26 and the second shielding body 27 respectively. After the two splicing bodies 35 are combined, a complete first marking body 47 is formed. A support frame 49 is fixedly connected to the surface of the annular support body 15, and a first identification camera 50 is fixedly installed on the first surface 4901 of the support frame 49. It should be understood that before processing, the model of the pipe body 20 will be input into the controller 40 first. The first identification camera 50 can identify the first marking body 47 formed by the splicing bodies 35, and then identify the type of the shielding body to determine whether it matches the input model of the pipe body 20. When the identified shielding body is not suitable for the pipe body 20, the controller 40 can be requested to start the three first motors 22 to drive the threaded rods 23 to rotate, and drive the three jaws 24 to cancel the clamping, which is beneficial to ensuring the adaptability of the shielding body to the pipe body 20.

[0070] As Figure 3 、 Figure 4 And Figure 17As shown, in one embodiment, three plug-in slots 36 are provided at the end of the vent hood 16, 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, and a second identification 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 block 37 into the plug-in slot 36. According to the thickness of the tube body 20, a sealing ring 18 with a different inner ring diameter is 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 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 a 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, and 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 by docking. 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 powder inside the tube body 20 and the inner wall of the tube body 20 that is not coated, which is beneficial to improve the dust cleaning effect.

[0074] like Figure 2 andFigure 14 As shown, in one embodiment, the dust collection assembly includes a vacuum cleaner 45. The dust collection end of the vacuum cleaner 45 is fixedly communicated with an air suction pipe 46. One end of the air suction pipe 46 away from the vacuum cleaner 45 is fixedly communicated with the rear end of the ventilation hood 16. It should be understood that by providing the vacuum cleaner 45, the function of providing aerodynamic force is achieved, and the vacuum cleaner 45 can automatically filter and collect the inhaled gas.

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

[0076] Step 1, positioning of the pipe body 20: Position the pipe body 20 through the positioning assembly;

[0077] Step 2, shielding and isolation: By combining three separable shielding bodies and covering the front end of the pipe body 20, the front end of the pipe body 20 is shielded and isolated, so that the spraying end of the supersonic flame spraying assembly is isolated inside the pipe body 20 and the shielding body, and the dust generated by powder spraying is isolated inside the pipe body 20 and the shielding body;

[0078] Step 3, dust collection treatment: Dust the rear end of the pipe body 20 through the dust collection assembly. The gas enters the inside of the shielding body through the one-way valve 48, and the formed air flow passes through the pipe body 20. The air flow takes away the dust in the pipe body 20 and is finally inhaled by the dust collection assembly, reducing the environmental pollution caused by dust.

[0079] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A supersonic flame spraying device, comprising a supersonic flame spraying assembly, characterized in that: It further includes a positioning component for clamping and positioning the pipe body (20). A shielding component is provided at the front end of the positioning component for shielding the front end of the pipe body (20). The shielding component includes three separable shielding bodies. One-way valves (48) are fixedly communicated with the front surfaces of the three shielding bodies. The spraying end of the supersonic flame spraying component is shrouded by the three separable shielding bodies. A dust suction component is provided at the rear end of the positioning component for communicating with the rear end of the pipe body (20) shielded and isolated by the shielding component.

2. The supersonic flame spraying equipment according to claim 1, characterized in that: The positioning component includes a support base (14). An annular support body (15) is fixedly connected to the top of the support base (14). A ventilation hood (16) is fixedly connected to the inner ring surface of the annular support body (15). A lapping ring (17) is fixedly connected to the inner wall of the ventilation hood (16). A sealing ring (18) is inserted into the front end of the ventilation hood (16). The sealing ring (18) is lapped on the front surface of the lapping ring (17). The inner ring space of the sealing ring (18) is a ventilation channel (19). The pipe body (20) abuts against the end surface of the sealing ring (18). A clamping component is provided on the end surface of the annular support body (15) for clamping and positioning the outer surface of the pipe body (20). A spiral body (21) is fixedly connected to the inner wall of the ventilation hood (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 hood (16).

3. The supersonic flame spraying equipment according to claim 2, characterized in that: The clamping component includes three first motors (22). The three first motors (22) are fixedly installed on the end surface of the annular support body (15) and are annularly arrayed with the annular support body (15) as a reference. The output ends of the three first motors (22) are fixedly connected with threaded rods (23). Claw jaws (24) are threadedly connected to the surfaces of the three threaded rods (23). The claw jaws (24) are slidably connected to the surface of the annular support body (15) through tracks (25).

4. The supersonic flame spraying device according to claim 3, characterized in that: The three separable shielding bodies are respectively a first shielding body (26), a second shielding body (27), and a third shielding body (28). After the first shielding body (26), the second shielding body (27), and the third shielding body (28) are combined, a first through port (29), a second through port (30), and a shielding cavity (31) are formed. The second through port (30) is used for sleeving on the surface of the pipe body (20). The shielding cavity (31) covers the front end of the pipe body (20).

5. The supersonic flame spraying equipment according to claim 4, characterized in that: Positioning sleeves (32) are fixedly connected to the ends of the three claw jaws (24). Electromagnets (33) are fixedly installed in the three positioning sleeves (32). Magnetic plug connectors (34) are fixedly connected to the surfaces of the first shielding body (26), the second shielding body (27), and the third shielding body (28). The three magnetic plug connectors (34) are respectively inserted into the three positioning sleeves (32). The three magnetic plug connectors (34) are magnetically connected to the three electromagnets (33).

6. The supersonic flame spraying equipment according to claim 5, characterized in that: The first shielding body (26) and the second shielding body (27) are respectively fixedly connected with 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).

7. The supersonic flame spraying equipment according to claim 6, characterized in that: The end of the ventilation hood (16) is provided with three insertion grooves (36), and docking blocks (37) are slidably inserted into the three insertion grooves (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), and a second identification camera (39) is fixedly connected to the second surface (4902) of the support frame (49).

8. The supersonic flame spraying device according to claim 4, wherein: A second spiral channel (41) is fixedly connected to the inner edge of a first through opening (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 opening (29) is butt-connected to a port of the second spiral channel (41).

9. The supersonic flame spraying device according to claim 2, wherein: The dust collection assembly comprises a dust collector (45), the dust collection end of the dust collector (45) is fixedly connected to a suction pipe (46), and one end of the suction pipe (46) away from the dust collector (45) is fixedly connected to the rear end of the ventilation cover (16).

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

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