Turning and spraying synchronous forming cutter bar

Abstract

The utility model provides a turning and spraying synchronous forming cutter bar, and relates to the technical field of turning and thermal spraying. The turning and spraying synchronous forming cutter bar comprises a turning tool assembly, a powder spraying assembly and a powder supply assembly. The turning tool assembly comprises a turning tool blade and a turning tool bar. The turning tool bar is provided with a first end capable of installing the turning tool blade and a second end far away from the turning tool blade. The powder spraying assembly comprises a spraying head arranged at the first end in a swinging mode, a rotating gear arranged on the turning tool bar in a rotating mode and a rotary knob. The spray head is provided with a spherical gear part used for being meshed with the rotating gear. The knob is connected to the rotating gear and used for driving the rotating gear to rotate so as to drive the nozzle to swing. The powder supply assembly comprises a main box body connected to the spray head through a pipeline, a powder conveying pipeline connected to the interior of the main box body and used for bearing powder, a heater connected to the powder conveying pipeline and a powder feeding barrel connected to the main box body and used for supplying powder to the powder conveying pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of turning and thermal spraying, in particular to a turning and spraying synchronously formed tool bar. Background Art

[0002] Thermal spraying technology, as an advanced surface treatment process, heats metal powder or wire to a molten or semi-molten state through a heat source and sprays it onto the surface of the substrate to form a solid coating. This technology plays a key role in many fields such as industry, aerospace and energy, aiming to repair, protect and optimize material performance.

[0003] Thermal spraying technology is mostly used on key components of high-end equipment. Key components need to be machined first and then thermally sprayed. This method not only has low production efficiency, but also the rapid cooling and shrinkage during thermal spraying may cause tensile stress inside the coating. Once these stresses exceed the coating's tolerance limit, cracks will occur. Although existing solutions such as substrate preheating and selection of spraying materials have achieved certain results, they have not been able to completely solve the crack problem and often increase production costs and time consumption.

[0004] At present, the substrate often needs to be preheated during thermal spraying. However, this not only consumes a lot of energy, but also causes the thermal spray coating to fail to adhere well to the workpiece surface due to oxidation of the workpiece surface, and is prone to falling off or partially falling off, causing the coating to crack.

[0005] To meet this challenge, it is urgent to develop a new thermal spraying device / method to achieve a crack-free and uniform coating. In view of this, the applicant has proposed this application after studying the existing technology. Utility Model Content

[0006] The utility model provides a turning and spraying synchronous forming tool bar, aiming to improve at least one of the above technical problems.

[0007] In order to solve the above technical problems, the utility model provides a turning and spraying synchronous forming tool bar, which comprises a turning tool assembly, a powder spraying assembly and a powder supply assembly.

[0008] The turning tool assembly comprises a turning tool bar having a first end capable of mounting a turning tool blade and a second end away from the turning tool blade.

[0009] The powder spraying assembly includes a spray head swingably arranged at the first end, and a rotating gear and a knob rotatably arranged at the tool bar. The spray head is provided with a ball gear part for engaging the rotating gear. The knob is engaged with the rotating gear to drive the rotating gear to rotate, thereby driving the spray head to swing.

[0010] The powder supply assembly includes a main box body connected to the nozzle through a pipeline, a powder conveying pipeline connected to the main box body and used to receive powder, a heater connected to the powder conveying pipeline, and a powder conveying barrel connected to the main box body and used to supply powder to the powder conveying pipeline.

[0011] In an optional embodiment, the nozzle is located below the turning tool blade, and the distance between the spray cladding point of the nozzle on the workpiece and the tip of the turning tool blade is in the range of 10 to 50 mm.

[0012] In an optional embodiment, the tool bar is provided with a nozzle cavity for accommodating the nozzle, and a powder delivery pipeline connected to the nozzle cavity. The nozzle is swingably located in the nozzle cavity and connected to the powder delivery pipeline through a telescopic tube. The main box pipeline is connected to the powder delivery pipeline.

[0013] In an optional embodiment, the powder supply assembly further comprises a flexible tube for connecting the main box and the powder delivery channel. The flexible tube is provided with an air inlet pipe for connecting to an external air source.

[0014] In an optional embodiment, the bottom of the main box is constructed as a funnel-shaped structure and is connected to the flexible tube. The telescopic tube is made of high temperature resistant flexible metal material.

[0015] In an optional embodiment, the powder supply assembly includes at least two powder delivery barrels. The powder delivery barrels are connected to the top of the main box.

[0016] The powder conveying pipeline comprises an upper end portion configured as a funnel-shaped structure and a circular tube portion connected to the upper end portion.

[0017] The synchronous turning and thermal spraying also includes a stirring assembly coupled to the powder supply assembly. The stirring assembly includes a rotatable stirring shaft and a stirring motor coupled to the stirring shaft. The stirring shaft extends into the circular tube portion, and at least a portion of the stirring shaft extending into the circular tube portion is fixed with a plurality of stirring blades.

[0018] In an optional embodiment, the lower end of the powder delivery pipe is configured as a disc-shaped structure and can be joined to the inner wall of the main box. The at least two powder delivery barrels are symmetrically arranged relative to the center of the stirring shaft. The stirring blade is a spiral structure.

[0019] In an optional embodiment, the powder supply assembly further comprises a vibrating screen connected to the inside of the main box body, and a vibrating motor connected to the vibrating screen. The vibrating motor is used to drive the vibrating screen to vibrate. The vibrating screen is located below the powder conveying pipeline.

[0020] In an optional embodiment, the heater comprises an electric heating tube sleeved on the powder conveying pipeline. A heat insulating material is arranged between the main box (12) and the heater (10), or the inner side wall or the outer side wall of the main box (12) is coated with a heat insulating material.

[0021] In an optional embodiment, the knob is a scale knob. The range of the spray head swing is 0° to 90°.

[0022] In an optional embodiment, the alloy powder in the powder feeding barrel is wear-resistant nano alloy powder. The wear-resistant nano alloy powder is a nickel-based nano alloy powder with a melting point of 850°C to 1000°C, a cobalt-based nano alloy powder with a melting point of 900°C to 1000°C, an aluminum-based nano alloy powder with a melting point of 800°C to 950°C, or a zinc-based nano alloy powder with a melting point of 800°C to 1000°C.

[0023] By adopting the above technical solution, the utility model can achieve the following technical effects:

[0024] The synchronous turning and spraying forming tool bar can realize thermal spraying on the processed surface of the workpiece during the turning process in a way that turning and thermal spraying are carried out simultaneously. The cutting heat can melt and form the nano alloy powder on the surface of the substrate, and can also preheat the substrate to reduce the temperature difference between the substrate and the powder, and inhibit the generation of coating cracks. The cutting heat can also increase the surface activity and increase the bonding force with the coating. At the same time, the newly cut surface has no oxide layer, which reduces the crack sensitivity of the coating. In addition, there is no need to stop the machine or disassemble the workpiece in this process, so the surface modification of the workpiece can be achieved efficiently, which can also help to realize automated production and promote industrial reform and upgrading. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is an axonometric view of a tool bar that is simultaneously formed by turning and spraying.

[0027] Figure 2 It is a half-section view of the powder supply assembly.

[0028] Figure 3 It is a partial cross-sectional view of the turning tool assembly.

[0029] Figure 4 It is the installation diagram of the powder spraying assembly.

[0030] Figure 5 It is an axonometric view of the sprinkler assembly.

[0031] Figure 6 It is an axonometric view of the combination of the turning tool assembly and the workpiece.

[0032] Figure 7 yes Figure 6 Enlarged view of point A in the middle.

[0033] Markings in the figure: 1- stirring motor, 2- powder delivery barrel, 3- powder delivery pipeline, 4- stirring blade, 5- electric heating tube, 6- vibration screen, 7- air inlet pipe, 8- flexible pipe, 9- vibration motor, 10- heater, 11- stirring shaft, 12- main box, 13- turning tool rod, 14- turning tool blade, 15- nozzle, 16- telescopic tube, 17- rotating gear, 18- knob, 101- powder delivery pipeline, 102- workpiece, 103- discharge pipe. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the implementation mode of the utility model clearer, the technical scheme in the implementation mode of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation mode of the utility model. Obviously, the described implementation mode is a part of the implementation mode of the utility model, not all of the implementation modes. Based on the implementation mode in the utility model, all other implementation modes obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the implementation mode of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected implementation mode of the utility model. Based on the implementation mode in the utility model, all other implementation modes obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0035] Depend on Figures 1 to 7 As shown, an embodiment of the utility model provides a synchronous turning and spraying forming tool bar, which includes a turning tool assembly, a powder spraying assembly and a powder supply assembly.

[0036] The turning tool assembly comprises a turning tool bar 13. The turning tool bar 13 has a first end capable of mounting a turning tool blade 14, and a second end away from the turning tool blade 14.

[0037] The powder spraying assembly includes a spray head 15 swingably disposed at the first end, and a rotating gear 17 and a knob 18 rotatably disposed at the turning tool rod 13. The spray head 15 is provided with a ball gear portion for engaging the rotating gear 17. The knob 18 is engaged with the rotating gear 17 to drive the rotating gear 17 to rotate, thereby driving the spray head 15 to swing.

[0038] The powder supply assembly includes a main box 12 connected to the nozzle 15 by a pipeline, a powder conveying pipeline 3 connected to the main box 12 and used to receive powder, a heater 10 connected to the powder conveying pipeline 3, and a powder feeding barrel 2 connected to the main box 12 and used to supply powder to the powder conveying pipeline 3.

[0039] It should be noted that during the hard turning process, the cutting temperature can be as high as over 1000°C, which can melt some common wear-resistant nano-alloy powders, such as nickel-based nano-alloy powder with a melting point of about 850°C to 1000°C, cobalt-based nano-alloy powder with a melting point of about 900°C to 1000°C, aluminum-based nano-alloy powder with a melting point of about 800°C to 950°C, and zinc-based nano-alloy powder with a melting point of about 800°C to 1000°C, so that the nano-alloy powder can be melted onto the surface of the substrate.

[0040] The turning and spraying synchronous forming tool bar of the embodiment of the utility model can realize thermal spraying on the processed surface of the workpiece 102 during the turning process in a manner that turning and thermal spraying are carried out simultaneously. Not only is the cutting heat of the turning process used to melt the alloy powder onto the surface of the substrate, but the substrate is also preheated to reduce the temperature difference between the substrate and the powder, thereby inhibiting the generation of cracks in the coating. Moreover, the cutting heat can also increase the surface activity and increase the bonding force with the coating. At the same time, the newly cut surface has no oxide layer, thereby reducing the crack sensitivity of the coating. In addition, there is no need to shut down or disassemble the workpiece 102 during this process, thereby efficiently realizing the modification of the surface of the workpiece 102, and it can also be beneficial to realize automated production and promote industrial reform and upgrading.

[0041] Based on the above embodiments, in an optional embodiment of the present invention, as Figures 4 to 7 As shown, the nozzle 15 is located below the turning tool blade 14, and the distance between the spray cladding point of the nozzle 15 on the workpiece 102 and the tip of the turning tool blade 14 is in the range of 10 to 50 mm. The knob 18 is a scale knob.

[0042] Based on the above embodiments, in an optional embodiment of the present invention, as Figures 3 to 5As shown, the turning tool rod 13 is provided with a nozzle cavity for accommodating the nozzle 15, and a powder delivery pipeline 101 connected to the nozzle cavity. The nozzle 15 is swingably located in the nozzle cavity and connected to the powder delivery pipeline 101 through a telescopic tube 16. The pipeline of the main box 12 is connected to the powder delivery pipeline 101. The telescopic tube 16 is made of high-temperature resistant flexible metal material to prevent the telescopic tube 16 from being burned due to the high temperature generated during the turning process.

[0043] Specifically, the turning tool is installed on the tool holder of the lathe, and a turning tool blade 14 is installed at the front tip of the turning tool rod 13. A powder delivery pipeline 101 is opened inside the turning tool rod 13, one end of the powder delivery pipeline 101 is connected to the rear end of the turning tool rod 13, and the other end of the powder delivery pipeline 101 is connected to the nozzle cavity, and then connected to the nozzle 15 through the telescopic tube 16.

[0044] The powder spraying assembly consists of a ball gear spray head 15, a telescopic tube 16, a rotating gear 17 and a scale knob 18. Before the powder from the powder supply assembly is transported to the spray head 15, in order to control the position of the thermal spraying cladding point, the rotating gear 17 is controlled by rotating the scale knob 18, and the rotating gear 17 is meshed with the spray head 15, so that the spray head 15 can be rotated up and down by a certain angle, and the rotation angle range is 0° to 90°.

[0045] Based on the above embodiments, in an optional embodiment of the present invention, as Figure 1 and Figure 2 As shown, the powder supply assembly also includes a flexible tube 8 for connecting the main box 12 and the powder delivery channel. The flexible tube 8 is provided with an air inlet pipe 7 for connecting to an external air source. The bottom of the main box 12 is constructed as a funnel-shaped structure and connected to the flexible tube 8.

[0046] Specifically, the bottom center of the inverted cone structure of the main box 12 is connected to the second end of the turning tool rod 13 by a flexible tube 8, and an air intake pipe 7 is arranged on the flexible tube 8. Inert gas is input into the air intake pipe 7 to assist the powder to quickly pass through the flexible tube 8 to reach the nozzle 15 of the tool, thereby improving the smoothness of the powder flow during the entire conveying process. In other embodiments, the main box 12 can be directly pressurized instead of blowing air into the flexible tube 8 through the air intake pipe 7.

[0047] Based on the above embodiments, in an optional embodiment of the present invention, as Figure 1 and Figure 2 As shown, the powder supply assembly includes at least two powder delivery barrels 2. At least two powder delivery barrels 2 are respectively connected to the top of the main box body 12.

[0048] Specifically, the powder feeding barrel 2 is filled with powder for cladding. A discharge pipe 103 is provided at the bottom center of the powder feeding barrel 2. One end of the discharge pipe 103 is connected to the bottom center of the powder feeding barrel 2, and the other end is connected to the top box wall of the main box body 12. The discharge pipe 103 is a rigid pipe made of steel or other metal materials. The discharge pipe 103 can support the powder feeding barrel 2 without the need to set up an additional support frame for the powder feeding barrel 2. The powder feeding barrel 2 is also provided with a barrel cover. By opening the barrel cover of the powder feeding barrel 2, powder can be added to the powder feeding barrel 2, and the discharge amount of the powder can be controlled by using the switch valve on the discharge pipe 103.

[0049] In this embodiment, two powder delivery barrels 2 are arranged on the top of the main box body 12 , and the two powder delivery barrels 2 are placed at symmetrical positions in the center of the main box body 12 .

[0050] In an alternative embodiment, Figure 2 As shown, the powder conveying pipeline 3 includes an upper end portion configured as a funnel-shaped structure and a circular tube portion connected to the upper end portion. Preferably, the lower end of the powder conveying pipeline 3 is configured as a disc-shaped structure to be connected to the inner wall of the main box 12.

[0051] Specifically, the upper end of the powder conveying pipeline 3 is in an inverted cone structure, and the powder discharged from the powder delivery barrel 2 into the main box 12 can be concentrated in the middle structure of the powder conveying pipeline 3, thereby improving the utilization rate of the powder.

[0052] Based on the above embodiments, in an optional embodiment of the present invention, as Figure 1 and Figure 2 As shown, the synchronous turning and thermal spraying also includes a stirring assembly connected to the powder supply assembly. The stirring assembly includes a rotatable stirring shaft 11 and a stirring motor 1 connected to the stirring shaft 11. The stirring shaft 11 extends into the circular tube portion, and at least a portion of the stirring shaft 11 extending into the circular tube portion is fixed with a plurality of stirring blades 4. The stirring blades 4 are of a spiral structure. At least two of the powder supply barrels 2 are symmetrically arranged relative to the center of the stirring shaft 11.

[0053] Specifically, the stirring assembly includes a stirring motor 1, which is placed on the upper surface of the top wall of the main box body 12. The stirring motor 1 is connected to the top of the stirring shaft 11, and the bottom of the stirring shaft 11 extends into the middle end of the powder conveying pipe 3. At the same time, the stirring shaft 11 extends into the middle end of the powder conveying pipe 3 and is fixed with multiple stirring blades 4.

[0054] The stirring motor 1 can drive the stirring shaft 11 to rotate around its own axis, and use the stirring blades 4 to stir the powder in the circular tube, so that different powders are stirred and mixed evenly in the circular tube. By stirring and heating at the same time, the dryness of the powder can be ensured and the powder can be prevented from agglomerating. At the same time, the powder can be smoothly stirred and fall into the vibrating screen 6 at the bottom of the main box 12.

[0055] It should be noted that the stirring and heating of the powder are carried out simultaneously, which can prevent the powder from agglomerating while dehumidifying the powder. The powder is transported to the powder spraying device together with the inert gas of the air inlet pipe 7, and then the scale knob 18 is turned to control the angle of the nozzle 15 to achieve thermal spraying on the processed surface of the workpiece 102 during hard turning. Through this synchronous thermal spraying method, the alloy powder is melted on the surface of the substrate using the cutting heat, and the substrate can also be preheated to reduce the temperature difference between the substrate and the powder, and inhibit the generation of cracks in the coating. The cutting heat can also increase the surface activity and increase the bonding force with the coating. At the same time, the newly cut surface has no oxide layer, which reduces the crack sensitivity of the coating. In this process, there is no need to stop the machine or disassemble the workpiece 102, thereby efficiently achieving the modification of the surface of the workpiece 102.

[0056] Based on the above embodiments, in an optional embodiment of the present invention, as Figure 2 As shown, the powder supply assembly further includes a vibrating screen 6 connected to the inside of the main box 12, and a vibrating motor 9 connected to the vibrating screen 6. The vibrating motor 9 is used to drive the vibrating screen 6 to vibrate. The vibrating screen 6 is located below the powder conveying pipeline 3.

[0057] Specifically, the vibrating screen 6 is connected to the screen bracket, and the screen bracket is fixed to the inner wall of the main box 12. The vibration motor 9 generates vibration to screen the powder, so that the powder that meets the particle size requirements can pass through the vibrating screen 6, and the powder that is agglomerated or has too large a particle size remains on the vibrating screen 6. The powder that meets the requirements can enter the flexible tube 8 through the inverted cone structure at the bottom of the main box 12. The flexible tube 8 is made of flexible material, such as a rubber tube, a bellows, etc., to adapt to the movement of the tool.

[0058] Based on the above embodiments, in an optional embodiment of the present invention, as Figure 2 As shown, the heater 10 includes an electric heating tube 5 which is sleeved on the powder conveying pipeline 3 .

[0059] Specifically, an electric heating tube 5 is installed on the outer wall of the middle structure of the powder conveying pipeline 3. The electric heating tube 5 outputs energy through the heater 10, and its set temperature is 95° C. to 120° C. At the same time, in order to prevent the heat generated by the electric heater 10 from being transferred to the wall of the main box 12 and threatening the safety of the staff, a heat insulation material is arranged between the main box 12 and the electric heating tube 5, or a heat insulation material is coated on the inner side wall or the outer side wall of the main box (12).

[0060] It should be noted that the powders for thermal spraying are some common coated wear-resistant nano alloy powders, such as nickel-based nano alloy powder with a melting point of about 850℃~1000℃, cobalt-based nano alloy powder with a melting point of about 900℃~1000℃, aluminum-based nano alloy powder with a melting point of about 800℃~950℃, and zinc-based nano alloy powder with a melting point of about 800℃~1000℃.

[0061] The turning tool generates a large amount of heat during the hard turning process on the workpiece 102, and the cutting temperature can exceed 1000°C. This can not only make common wear-resistant nano-alloy powders, such as nickel-based nano-alloy powders with a melting point between 850°C and 1000°C, cobalt-based nano-alloy powders with a melting point between 900°C and 1000°C, aluminum-based nano-alloy powders with a melting point between 800°C and 950°C, and zinc-based nano-alloy powders with a melting point between 800°C and 1000°C, be melted onto the surface of the substrate, but also effectively preheat the substrate and reduce the temperature difference between the coating and the substrate.

[0062] The turning and spraying synchronous forming tool bar of the embodiment of the utility model utilizes the cutting temperature to melt the powder. At the same time, during the turning process, its heat can also preheat the substrate, reduce the temperature difference between the substrate and the powder, and inhibit the generation of coating cracks. The cutting heat can also increase the surface activity and increase the bonding force with the coating. At the same time, the newly cut surface has no oxide layer, which reduces the crack sensitivity of the coating. In addition, in this process, there is no need to shut down or disassemble the workpiece 102, thereby efficiently realizing the modification of the surface of the workpiece 102, greatly improving work efficiency, and helping to promote automated production and industrial innovation and upgrading.

[0063] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A synchronous turning and spraying forming tool bar, characterized in that: It includes a turning tool assembly, a powder spraying assembly and a powder supply assembly; The turning tool assembly comprises a turning tool rod (13); the turning tool rod (13) has a first end capable of mounting a turning tool blade (14), and a second end away from the turning tool blade (14); The powder spraying assembly comprises a spray head (15) swingably arranged at the first end, and a rotating gear (17) and a knob (18) rotatably arranged at the turning tool rod (13); the spray head (15) is provided with a ball gear part for meshing with the rotating gear (17); the knob (18) is engaged with the rotating gear (17) to drive the rotating gear (17) to rotate, thereby driving the spray head (15) to swing; The powder supply assembly comprises a main box (12) connected to the nozzle (15) through a pipeline, a powder conveying pipeline (3) connected to the main box (12) and used to receive powder, a heater (10) connected to the powder conveying pipeline (3), and a powder delivery barrel (2) connected to the main box (12) and used to supply powder to the powder conveying pipeline (3).

2. A turning and spraying synchronous forming tool bar according to claim 1, characterized in that The nozzle (15) is located below the turning tool blade (14), and the distance between the spray cladding point of the nozzle (15) on the workpiece and the tip of the turning tool blade (14) is in the range of 10 to 50 mm.

3. The turning and spraying synchronous forming tool bar according to claim 1 is characterized in that The turning tool rod (13) is provided with a nozzle cavity for accommodating the nozzle (15), and a powder delivery channel (101) connected to the nozzle cavity; wherein the nozzle (15) is swingably located in the nozzle cavity and is connected to the powder delivery channel (101) through a telescopic tube (16); and the main box (12) pipeline is connected to the powder delivery channel (101).

4. The turning and spraying synchronous forming tool bar according to claim 3 is characterized in that , the powder supply assembly further comprises a flexible tube (8) for connecting the main box (12) and the powder supply channel (101); The flexible tube (8) is provided with an air inlet pipe (7) for connecting to an external air source.

5. The turning and spraying synchronous forming tool bar according to claim 4 is characterized in that The bottom of the main box (12) is constructed as a funnel-shaped structure and is connected to the flexible tube (8); the telescopic tube (16) is made of a flexible metal material.

6. The turning and spraying synchronous forming tool bar according to claim 1 is characterized in that The powder supply assembly comprises at least two powder supply barrels (2); the powder supply barrels (2) are connected to the top of the main box (12); The powder conveying pipeline (3) comprises an upper end portion configured as a funnel-shaped structure, and a circular tube portion connected to the upper end portion; The turning and spraying synchronous forming tool rod also includes a stirring component connected to the powder supply component; the stirring component includes a rotatable stirring shaft (11) and a stirring motor (1) connected to the stirring shaft (11); the stirring shaft (11) extends into the circular tube portion, and at least a portion of the stirring shaft (11) extending into the circular tube portion is fixed with a plurality of stirring blades (4).

7. The turning and spraying synchronous forming tool bar according to claim 6 is characterized in that The lower end of the powder conveying pipe (3) is constructed as a disc-shaped structure and can be connected to the inner wall of the main box (12); at least two of the powder conveying barrels (2) are placed symmetrically relative to the center of the stirring shaft (11); and the stirring blade (4) is a spiral structure.

8. The synchronous turning and spraying forming tool bar according to claim 1 is characterized in that The powder supply assembly further comprises a vibrating screen (6) connected to the inside of the main box (12), and a vibrating motor (9) connected to the vibrating screen (6); the vibrating motor (9) is used to drive the vibrating screen (6) to vibrate; the vibrating screen (6) is located below the powder conveying pipeline (3).

9. A turning and spraying synchronous forming tool bar according to any one of claims 1 to 7, characterized in that The heater (10) includes an electric heating tube (5) which is sleeved on the outer wall of the powder conveying pipe (3); a heat insulating material is arranged between the main box (12) and the heater (10), or the inner side wall or the outer side wall of the main box (12) is coated with a heat insulating material.

10. A turning and spraying synchronous forming tool bar according to any one of claims 1 to 7, characterized in that , the knob (18) is a scale knob; the swing range of the nozzle (15) is 0° to 90°.

11. The turning and spraying synchronous forming tool bar according to any one of claims 1 to 7, characterized in that: The alloy powder in the powder feeding barrel (2) is wear-resistant nano alloy powder; the wear-resistant nano alloy powder is a nickel-based nano alloy powder with a melting point of 850°C to 1000°C, a cobalt-based nano alloy powder with a melting point of 900°C to 1000°C, an aluminum-based nano alloy powder with a melting point of 800°C to 950°C, or a zinc-based nano alloy powder with a melting point of 800°C to 1000°C.

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