Plasma laser automatic composite spraying system

Abstract

The invention relates to the technical field of plasma spraying, and discloses a plasma laser automatic composite spraying system which comprises a plasma composite laser spraying gun and an anti-blocking device. The plasma composite laser spraying gun, the powder feeding mechanism and the control panel are arranged to form a stable plasma laser automatic spraying system, efficient spraying of metal components is achieved, meanwhile, an anti-blocking device is further arranged, and through meshing transmission of a main bevel gear, a first auxiliary bevel gear and a second auxiliary bevel gear, the efficient spraying of the metal components is achieved. The first screening assembly and the second screening assembly can rotate synchronously and oppositely, so that bidirectional multiple screening of the spraying powder is achieved, the size of the powder is reduced, the problem of blockage in subsequent use is solved, meanwhile, the stirring assembly can be operated in a linkage mode to further stir the screened powder in a reciprocating mode, the powder is looser, and the powder quality is improved. Therefore, multiple times of screening and stirring of the spraying powder are achieved, the spraying powder is smoothly sprayed and used, and the spraying blocking problem is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of plasma spraying, and particularly to a plasma laser automatic composite spraying system. Background Art

[0002] At present, when manufacturing many shaft-shaped metal components, it is usually necessary to perform special treatment on their surfaces to make the surfaces of the metal components meet requirements such as corrosion resistance and wear resistance. The common treatment systems at present are as follows:

[0003] I. Electroplating technology. This technology has a thin coating, generally not exceeding 100 μm, and the bonding strength between the coating and the substrate is weak, generally not exceeding 100 MPa. Its corrosion resistance is poor, it is easy to peel off, and it also causes serious waste of resources and environmental pollution. It is an industry that urgently needs to be alleviated.

[0004] II. Thermal spraying technology. This technology has a relatively high coating efficiency, but the coating and the substrate are mechanically bonded, and the bonding strength is weak, generally 100 - 200 MPa, and it is easy to peel off.

[0005] III. Laser cladding technology. This traditional technology has advantages such as high bonding strength, small heat quantity, and small deformation, but the processing efficiency of this technology is relatively low.

[0006] There are certain limitations in the above-mentioned existing technologies. For this reason, there is a plasma laser composite spraying system with the application number CN201821897361.0, including: a plasma laser composite spraying gun, a powder feeding device, and a controller. The controller is respectively connected to the spraying gun and the powder feeding device, and the spraying gun and the powder feeding device are connected. The working principle of this system is as follows: First, the controller is used to control the spraying gun to emit a laser beam onto the surface of the workpiece to be processed, so as to form a molten pool on the surface of the workpiece to be processed; then, the controller is further used to control the powder feeding device to convey a powder-like ejecta to the spraying gun; finally, the controller is further used to control the spraying gun to spray the powder-like ejecta in a liquid form onto the molten pool to be combined with the workpiece to be processed. The bonding strength between the ejecta and the workpiece to be processed is high and it is not easy to peel off.

[0007] In the above-mentioned existing technology, through the plasma laser composite spraying method, high-efficiency spraying on the outside of metal components is realized, the firmness of the coating is improved, and the properties such as the hardness, corrosion resistance, and wear resistance of the surface of the metal components are improved. However, during the use of the current plasma laser composite spraying gun, the raw material of the spraying material is generally a powder material. The powder material is conveyed through a pipeline and enters the plasma laser composite spraying gun for heating and spraying. When the powder material is conveyed through the pipeline, there may be a problem of accumulation and blockage. The blocked material is difficult to enter the inside of the spraying gun, thus affecting the use of the spraying gun and subsequent spraying. Summary of the Invention

[0008] The purpose of the present invention is to provide a plasma laser automated composite spraying system to solve the problems raised in the above background technology.

[0009] To achieve the above purpose, the present invention adopts the following technical solutions: A plasma laser automated composite spraying system includes a plasma composite laser spraying gun, a powder feeding mechanism, and a control panel. The control panel is respectively connected to the main body of the plasma composite laser spraying gun and the powder feeding mechanism. The main body of the plasma composite laser spraying gun is connected to the powder feeding mechanism. The plasma composite laser spraying gun further includes a base cabinet. A rotating seat is installed at the upper end of the base cabinet. A robotic arm main body is butted at the upper end of the rotating seat. A connecting seat is installed at the upper end of the robotic arm main body. A plasma laser composite spraying gun main body is provided at the upper end of the connecting seat. An anti-blocking device is installed at the upper end of the connecting seat and is connected to the powder inlet end of the plasma laser composite spraying gun main body.

[0010] Preferably, the anti-blocking device includes a connecting box. The connecting box is connected to the upper end of the connecting seat. A servo motor is provided inside the connecting box. A main bevel gear is butted at the upper end of the servo motor. The upper end of the main bevel gear is respectively meshed and connected to a first sub-bevel gear and a second sub-bevel gear on both sides. The middle of the first sub-bevel gear is connected to a first screening component. The second sub-bevel gear is connected to a second screening component. The second screening component is installed outside the first screening component. A feed hopper is butted on one side of the first screening component. The other side of the first screening component is connected to a stirring component. The lower end of one side of the connecting box is connected to the plasma laser composite spraying gun main body.

[0011] Preferably, the first screening component includes a rotating tube. The rotating tube is butted in the middle of the first sub-bevel gear. One end of the rotating tube is inserted into the feed hopper. The other end of the rotating tube is butted against a first sieve tube. A first sieve hole is opened inside the first sieve tube. A connecting plate is provided inside the first sieve hole. A grinding block is provided on one side of the connecting plate. A brush strip is installed on the other side of the connecting plate. A rotating shaft is butted on the side of the first sieve tube away from the rotating tube. A rotating cylinder is installed outside the rotating shaft. The lower end of the rotating cylinder is connected to a convex shaft body. The bottom of the convex shaft body is fixedly provided with a stabilizing frame. The lower end of the stabilizing frame is connected to the inside of the connecting box.

[0012] Preferably, the second screening component includes a butting tube. The butting tube is connected to the middle of the second sub-bevel gear and is sleeved outside the rotating tube. One end of the butting tube is butted against a second sieve tube. A second sieve hole is opened inside the second sieve tube.

[0013] Preferably, the stirring assembly includes a connecting shaft, which is plugged into one side of the rotating shaft, a docking key bar is fixedly provided at the upper end of the connecting shaft, and the docking key bar is connected to the inside of one side of the rotating shaft, a driving wheel is installed on the outside of the connecting shaft, a belt is connected to the outside of the driving wheel for transmission, and the lower end of the belt is connected to the driven wheel for transmission, a rotating rod is docked on one side of the middle of the driven wheel, a turntable is fastened to the outside of the rotating rod, a docking shaft is embedded in the lower end of the turntable, a moving tube is fixed at the lower end of the docking shaft, a guide rod is plugged into the inside of the moving tube, and both sides of the guide rod are connected to the inside of the connecting box, docking rings are equidistantly provided on both sides of the outer end of the moving tube, and a stirring bar rack is installed at the lower end of the docking ring.

[0014] Preferably, the middle portion of the rotating tube is hollow, and a long groove is integrally formed at the upper left end of the rotating tube to connect with the middle portion of the first bevel gear.

[0015] Preferably, the grinding blocks are arranged in a long strip shape along the outer side of the connecting plate, and the overall installation of the grinding blocks is messy and irregular.

[0016] Preferably, the brush strips are installed at no less than four locations, and the outer ends of the brush strips at each location abut against the inner wall of the second screen drum.

[0017] Preferably, the second sieve drum is sleeved on the outside of the first sieve drum, and the diameter of the second sieve holes opened in the second sieve drum is smaller than the diameter of the first sieve holes opened in the first sieve drum.

[0018] Preferably, the middle portion of the turntable is arranged in a concave ring shape, and the lower end of the concave ring of the turntable is connected to the upper end of the docking shaft.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention constitutes a stable plasma laser automatic spraying system by providing a plasma composite laser spray gun, a powder feeding mechanism and a control panel, thereby realizing efficient spraying of metal components. At the same time, an anti-clogging device is also provided inside the plasma composite laser spray gun, that is, through the meshing transmission of the main bevel gear, the first sub-bevel gear and the second sub-bevel gear, the synchronous opposite rotation of the first screening component and the second screening component is realized, thereby enabling the entering spray powder to be screened in both directions multiple times, thereby reducing the volume of the powder and reducing the problem of subsequent clogging. At the same time, the stirring component docked at one end of the first screening component can be operated in linkage to further stir the screened powder back and forth, making the powder looser, thereby achieving multiple screening and stirring of the spray powder, enabling it to be sprayed smoothly and reducing the problem of spraying clogging.

[0021] The arrangement of the main bevel gear, the first sub-bevel gear and the second sub-bevel gear, that is, when the main bevel gear is in a rotating state, can realize the synchronous rotation drive of the first sub-bevel gear and the second sub-bevel gear meshed and connected on both sides of the upper end, thereby, the first sub-bevel gear and the second sub-bevel gear can rotate synchronously in opposite directions, and correspondingly realize the synchronous opposite transmission operation of the first screening assembly and the second screening assembly.

[0022] The setting of the first screening component, that is, when the rotating tube rotates the first bevel gear, the rotation of the first screen drum can be realized synchronously, so that the powder entering the first screen drum can be screened out from the first sieve hole through centrifugal action. At the same time, when the first screen drum rotates, the rotation of the rotating shaft connected to the right side can also be realized, so that the rotating shaft can synchronously drive the rotating drum connected to the outer end, and the convex shaft body connected to the circulating groove opened on the outside of the rotating drum can cooperate with the circulating groove transmission when the rotating drum is in a rotating state to realize the left and right reciprocating movement of the rotating shaft. In this way, the first screen drum can not only rotate centrifugally, but also move back and forth left and right. In this way, the powder screening efficiency can be greatly enhanced and the problem of large powder particles can be reduced.

[0023] The setting of the connecting plate, grinding block and brush strip, that is, the connecting plate installed inside the first screen drum, can cooperate with the grinding blocks irregularly installed on the inner surface to grind and crush the powder when the first screen drum is in a rotating state, so as to crush the powder and reduce larger particles. At the same time, the brush strip on the outside can assist in the brushing process inside the second screening component when the first screen drum is in a rotating and reciprocating state, thereby accelerating the powder discharge efficiency and reducing the anti-blocking problem.

[0024] The setting of the second screening component, that is, the butt joint can rotate synchronously with the second bevel gear, so that the butt joint can realize the rotation of the second screen drum, and the second screen drum and the first screen drum are in the opposite centrifugal rotation state. Therefore, the powder that has completed the preliminary screening can be reversely centrifuged to ensure smooth powder spraying and reduce the occurrence of clogging problems caused by excessive volume.

[0025] The arrangement of the stirring assembly, that is, when the rotating shaft is in a rotating and reciprocating state, the connecting shaft connected to the middle of the rotating shaft through the docking key bar can realize synchronous rotation, so that the linkage transmission of the driving wheel, belt and driven wheel can be realized, and the rotating rod docked on one side of the middle of the driven wheel can realize the rotation of the externally inclined turntable, and the turntable in an inclined state and rotating can drive the docking shaft connected to the internal concave ring to move back and forth left and right. Therefore, the moving tube fixed at the lower end of the docking shaft can cooperate with the support and guiding effect of the guide rod to realize left and right reciprocating movement, thereby, the stirring bar frames docked on both sides of the outer end of the moving tube will move back and forth accordingly, to complete the screening and fall The powder gathered at the lower end of the right side of the connecting box is stirred again, making the powder looser, further reducing the appearance of large particles of powder, and improving the subsequent spraying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the system composition of the present invention;

[0027] Figure 2 This is a schematic diagram of the main structure of the plasma laser composite spraying gun of the present invention;

[0028] Figure 3 This is a schematic diagram of the internal structure of the anti-blocking device of the present invention when viewed from the left;

[0029] Figure 4 This is a schematic diagram of the internal structure of the first screening component of the present invention when viewed from the left;

[0030] Figure 5 This is a three-dimensional structure diagram of the first sieve cylinder of the present invention;

[0031] Figure 6 This is a schematic diagram of the internal structure of the second screening component of the present invention when viewed from the left;

[0032] Figure 7 This is a schematic diagram of the internal structure of the stirring component of the present invention when viewed from the left;

[0033] Figure 8 For the present invention Figure 7 The enlarged structure diagram at position A in.

[0034] In the figure: base cabinet - 1, rotating seat - 2, robotic arm main body - 3, connecting seat - 4, plasma laser composite spraying gun main body - 5, anti-blocking device - 6, connecting box - 61, servo motor - 62, main bevel gear - 63, first sub-bevel gear - 64, second sub-bevel gear - 65, first screening component - 66, rotating pipe - 661, first sieve cylinder - 662, first sieve hole - 663, connecting plate - 664, grinding block - 665, rotating shaft - 666, rotating cylinder - 667, convex shaft body - 668, stabilizing frame - 669, brush strip - 6610, second screening component - 67, docking pipe - 671, second sieve cylinder - 672, second sieve hole - 673, feed hopper - 68, stirring component - 69, connecting shaft - 691, docking key strip - 692, driving wheel - 693, belt - 694, driven wheel - 695, rotating rod - 696, turntable - 697, docking shaft - 698, moving pipe - 699, guide rod - 6910, docking ring - 6911, stirring bar rack - 6912. Detailed implementation manners

[0035] In order to further explain the technical solution of the present invention, the following will be elaborated in detail through specific embodiments.

[0036] Please refer to Figure 1-2, the present invention provides a plasma laser automated composite spraying system, including a plasma composite laser spraying gun, a powder feeding mechanism and a control panel. The control panel is respectively connected to the main body of the plasma composite laser spraying gun and the powder feeding mechanism. The main body of the plasma composite laser spraying gun is connected to the powder feeding mechanism. The plasma composite laser spraying gun further includes a base cabinet 1. A rotating seat 2 is installed at the upper end of the base cabinet 1. The upper end of the rotating seat 2 is butted with a robotic arm main body 3. A connecting seat 4 is installed at the upper end of the robotic arm main body 3. A plasma laser composite spraying gun main body 5 is provided at the upper end of the connecting seat 4. An anti-blocking device 6 is installed at the upper end of the connecting seat 4, and the anti-blocking device 6 is connected to the powder inlet end of the plasma laser composite spraying gun main body 5.

[0037] Among them, the plasma composite laser spraying gun also has a plasma spraying device, a laser emitting device, etc., and its specific structure is the same as that in the prior art, so it will not be described in detail here.

[0038] Specifically, when performing plasma laser composite spraying activities, the plasma composite laser spraying gun can pre-perform laser melting activities on the materials to be sprayed. After melting for a certain period of time, the spraying powder can enter the inside of the plasma composite laser spraying gun and be heated to the molten state synchronously, and then be accelerated and sprayed onto the outer surface of the metal component to achieve plasma laser automated composite spraying activities. At the same time, with the multi-directional movement of the rotating seat 2 and the robotic arm main body 3, the spraying position can be flexibly adjusted, greatly improving the spraying automation and scope, enabling efficient plasma spraying of metal components, and significantly enhancing the performance of the metal component surface such as hardness, corrosion resistance, and wear resistance.

[0039] Please refer to Figure 3 , the anti-blocking device 6 in this embodiment includes a connecting box 61. The connecting box 61 is connected to the upper end of the connecting seat 4, and the lower right end of the connecting box 61 is connected to the plasma laser composite spraying gun main body 5. A servo motor 62 is provided on the left side inside the connecting box 61. The upper end of the servo motor 62 is butted with a main bevel gear 63. The upper end of the main bevel gear 63 is respectively meshed and connected with a first sub-bevel gear 64 and a second sub-bevel gear 65 on both sides. The middle of the first sub-bevel gear 64 is connected to a first screening component 66. The second sub-bevel gear 65 is connected to a second screening component 67. The second screening component 67 is installed outside the first screening component 66. The left side of the first screening component 66 is butted with a feed hopper 68, and the feed hopper 68 is located outside the left side of the connecting box 61 and can be connected to the external powder feeding end. The right side of the first screening component 66 is connected to a stirring component 69.

[0040] Please refer to Figures 4-6, the first screening component 66 in this embodiment includes a rotating pipe 661. The rotating pipe 661 is docked in the middle of the first sub-bevel gear 64, and the left side of the rotating pipe 661 is inserted into the feeding hopper 68, that is, combined into a telescopic structure. The right side of the rotating pipe 661 is docked with a first sieve cylinder 662. A plurality of rows of first sieve holes 663 are formed inside the first sieve cylinder 662, and a connecting plate 664 is installed between adjacent first sieve holes 663. A grinding block 665 for grinding powder is fixedly arranged on the inner surface of the connecting plate 664, and a brush strip 6610 for brushing treatment is installed on the outer surface of the connecting plate 664. One side of the first sieve cylinder 662 away from the rotating pipe 661 is docked with a rotating shaft 666. A rotating cylinder 667 is installed outside the rotating shaft 666, and a circulating groove is integrally formed outside the rotating cylinder 667. The lower end of the circulating groove formed outside the rotating cylinder 667 is connected to the upper end of a convex shaft body 668, and the bottom of the convex shaft body 668 is fixedly arranged with a stabilizing frame 669, and the lower end of the stabilizing frame 669 is connected to the inside of the connection box 61.

[0041] Among them, the second screening component 67 includes a docking pipe 671. The docking pipe 671 is connected to the middle of the second sub-bevel gear 65, and the docking pipe 671 is sleeved outside the rotating pipe 661. The right side of the docking pipe 671 is docked with a second sieve cylinder 672, and a second sieve hole 673 is formed inside the second sieve cylinder 672. The size of the second sieve cylinder 672 is larger than that of the first sieve cylinder 662.

[0042] Among them, the middle of the rotating pipe 661 is hollow, and a long groove is integrally formed at the upper left end of the rotating pipe 661 and connected to the middle of the first sub-bevel gear 64, ensuring that the rotating pipe 661 can assist in realizing powder transmission and feeding. At the same time, during the rotation process, through the long groove formed at the upper end, it can smoothly move left along the middle of the first sub-bevel gear 64; the grinding block 665 is arranged in a long strip shape along the outer side of the connecting plate 664, and the overall installation of the grinding block 665 is messy and irregular. Through the irregular setting of the grinding block 665, when the first sieve cylinder 662 rotates to drive the powder to rise, irregular grinding cooperation can be realized, reducing the volume of the powder and avoiding the occurrence of large particle blockage problems; the number of installed brush strips 6610 is not less than four, and the outer ends of each brush strip 6610 are in contact with the inner wall of the second sieve cylinder 672. At the same time, the rotation and brushing of the brush strip 6610 can assist in realizing the brushing treatment of the inner wall of the second sieve cylinder 672, that is, ensuring the cleanliness of its inner wall. At the same time, it can improve the powder discharge efficiency and reduce blockage problems.

[0043] Among them, the second sieve cylinder 672 is sleeved outside the first sieve cylinder 662, and the diameter of the second sieve hole 673 formed inside the second sieve cylinder 672 is smaller than the diameter of the first sieve hole 663 formed inside the first sieve cylinder 662, ensuring the efficient screening combination of the first sieve cylinder 662 and the second sieve hole 673, enabling the powder to meet the usage requirements and avoiding the appearance of larger particles.

[0044] Specifically, when the sprayed powder enters the plasma laser composite spraying gun body 5, to avoid large particle blockage problems, the sprayed powder can be transported into the interior of the feed hopper 68, and then enter the interior of the rotating pipe 661 along the feed hopper 68. Through the hollow part inside the rotating pipe 661, the sprayed powder can enter the interior of the first sieve cylinder 662. At this time, the servo motor 62 installed on the left side inside the connection box 61 can be driven to make the servo motor 62 rotate relative to the main bevel gear 63 at the top. When the main bevel gear 63 rotates, the synchronous reverse transmission of the first sub-bevel gear 64 and the second sub-bevel gear 65 engaged on both sides of the upper end can be respectively achieved. When the first sub-bevel gear 64 is in a rotating state, the rotation of the rotating pipe 661 connected in the middle can be achieved. Thus, the rotating pipe 661 can achieve the rotation of the first sieve cylinder 662 connected on the right side. In this way, the sprayed powder entering the interior of the first sieve cylinder 662 will be quickly screened out from the first sieve holes 663 opened inside the first sieve cylinder 662 under the centrifugal force of the rotation of the first sieve cylinder 662, and then enter the interior of the second sieve cylinder 672. At the same time, in cooperation with the grinding blocks 665 irregularly arranged between adjacent first sieve holes 663, irregular grinding treatment can be performed on the powder inside, so that the sprayed powder is crushed, the appearance of large particle powder is reduced, and the problem of large particle powder blocking the first sieve holes 663 is avoided. Secondly, when the first sieve cylinder 662 rotates, the synchronous rotation of the rotating cylinder 667 connected on the right side can be achieved. In this way, the rotating cylinder 667 can drive the rotating cylinder 667 connected on the right side accordingly. When the rotating cylinder 667 is in a rotating state, the rotating cylinder 667 can cooperate with the docking effect between the externally opened circulating groove and the convex shaft body 668 installed on the upper end of the stabilizing frame 669 to achieve left-right reciprocating movement. Thus, the rotating shaft 666 in a rotating state can also achieve the left-right reciprocating movement of the first sieve cylinder 662 and the rotating pipe 661, further improving the screening effect and accelerating the screening rate of the sprayed powder entering the interior;

[0045] When the second sub-bevel gear 65 rotates in the reverse direction along with the main bevel gear 63, the connecting pipe 671 connected to the middle of the second sub-bevel gear 65 will drive the synchronous rotation of the second sieve cylinder 672 connected on the right side. Thus, the powder entering the interior of the second sieve cylinder 672 can be centrifugally screened again, and in cooperation with the second sieve holes 673 opened inside, the powder is screened and discharged. The screened powder will fall to the lower right end of the connection box 61 and then enter the plasma laser composite spraying gun body 5 for plasma spraying use;

[0046] At the same time, when the first sieve drum 662 and the second sieve drum 672 rotate, they are in a synchronous opposite rotation state, so that the centrifugal directions inside them are different, which can significantly improve the centrifugal screening effect of the spray powder. When the powder enters the second sieve drum 672, in order to avoid the problem of clogging caused by the powder, a brush bar 6610 is provided at the outer end of the connecting plate 664 provided inside the first sieve drum 662, that is, the brush bars 6610 at each location can move synchronously with the first sieve drum 662 in a rotating and reciprocating state. In this way, the brush bars 6610 at each location can assist in brushing the spray powder inside the second sieve drum 672 and speed up its discharge efficiency. At the same time, through the brushing effect, the problem of spray powder clogging the second sieve hole 673 can also be avoided, so that the spray powder can be screened and discharged smoothly multiple times, thereby enhancing the subsequent plasma spraying efficiency and greatly reducing the probability of plasma spraying clogging.

[0047] See also Figures 7-8 The stirring assembly 69 in this embodiment includes a connecting shaft 691, which is plugged into the middle of the right side of the rotating shaft 666, and the right end of the connecting shaft 691 is connected to the inside of the connecting box 61. A docking key strip 692 is fixed on the upper end of the connecting shaft 691, and the docking key strip 692 is connected to the inside of one side of the rotating shaft 666. In this way, when the rotating shaft 666 rotates and moves, the synchronous rotation of the connecting shaft 691 can still be achieved. A driving wheel 693 is installed on the outside of the connecting shaft 691. The external transmission of the driving wheel 693 is connected to a belt 694. The lower end of the belt 694 is connected to a driven wheel 695. One side of the middle of the driven wheel 695 There is a rotating rod 696 for docking, and the rotating rod 696 is connected to the inside of the connecting box 61 on the side away from the driven wheel 695. The outside of the rotating rod 696 is tilted and tightly connected to a turntable 697. A docking shaft 698 is embedded in the lower end of the turntable 697, and the top of the docking shaft 698 is set in a smooth spherical shape. A moving tube 699 is fixed to the lower end of the docking shaft 698. A guide rod 6910 is inserted into the inside of the moving tube 699, and the left and right sides of the guide rod 6910 are connected to the inside of the connecting box 61. Four docking rings 6911 are equidistantly installed on the outer ends of the left and right sides of the moving tube 699, and a stirring bar rack 6912 is installed correspondingly at the lower end of each docking ring 6911.

[0048] Among them, the middle part of the turntable 697 is set in a concave ring shape, and the lower end of the concave ring of the turntable 697 is connected to the upper end of the docking shaft 698. In this way, when the turntable 697 is in a rotating state, the docking shaft 698 embedded in the concave ring end can realize left and right reciprocating movement.

[0049] Specifically, when the rotating shaft 666 is in a rotating and moving state, the connecting shaft 691 connected to the inside of the rotating shaft 666 can rotate synchronously with the rotating shaft 666 through the limiting connection effect of the docking key strip 692 provided at the upper end. When the connecting shaft 691 rotates, it can drive the externally connected driving wheel 693, and the driving wheel 693 can cooperate with the externally connected belt 694 to rotate the driven wheel 695 provided at the bottom. In this way, when the driven wheel 695 is in a rotating state, the rotating rod 696 docked on one side of the middle of the driven wheel 695 can drive the rotation of the externally inclined mounting turntable 697. When the inclined mounting turntable 697 is in a rotating state, the docking shaft 698 embedded in the concave ring opened inside the turntable 697 can move left and right accordingly. Thus, the moving tube 699 fixed to the lower end of the docking shaft 698 can move left and right synchronously through the guide rod 6910 docked in the middle. Therefore, the stirring bar frames 6912 equidistantly arranged on both sides of the outer end of the moving tube 699 can move left and right synchronously to perform multiple stirring treatments on the sprayed powder that has been sieved and gathered at the lower right end of the connection box 61, further enhancing the looseness of the sprayed powder during pulverization, reducing agglomeration and large particle phenomena, ensuring a smooth plasma spraying process without blockage in the subsequent process. Moreover, the loose sprayed powder can form a uniform coating during spraying, making the coating formed on the outside of the metal component uniform and stable.

[0050] The above are only the preferred examples of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements on some of the technical features. 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 plasma laser automated composite spraying system, comprising a plasma composite laser spraying gun, a powder feeding mechanism and a control panel. The control panel is respectively connected to the main body of the plasma composite laser spraying gun and the powder feeding mechanism, and the main body of the plasma composite laser spraying gun is connected to the powder feeding mechanism; It is characterized in that: The plasma composite laser spraying gun further includes a base cabinet (1). A rotating seat (2) is installed at the upper end of the base cabinet (1). A robotic arm main body (3) is docked at the upper end of the rotating seat (2). A connecting seat (4) is installed at the upper end of the robotic arm main body (3). A plasma laser composite spraying gun main body (5) is provided at the upper end of the connecting seat (4). An anti-blocking device (6) is installed at the upper end of the connecting seat (4), and the anti-blocking device (6) is connected to the powder inlet end of the plasma laser composite spraying gun main body (5).

2. The plasma laser automated composite spraying system according to claim 1, wherein: The anti-blocking device (6) includes a connecting box (61). The connecting box (61) is connected to the upper end of the connecting seat (4). A servo motor (62) is provided inside the connecting box (61). A main bevel gear (63) is docked at the upper end of the servo motor (62). The upper end of the main bevel gear (63) is meshed and connected to a first sub-bevel gear (64) and a second sub-bevel gear (65) respectively on both sides. The middle of the first sub-bevel gear (64) is connected to a first screening component (66). The second sub-bevel gear (65) is connected to a second screening component (67). The second screening component (67) is installed outside the first screening component (66). A feed hopper (68) is docked on one side of the first screening component (66). The other side of the first screening component (66) is connected to a stirring component (69). The lower end of one side of the connecting box (61) is connected to the plasma laser composite spraying gun main body (5).

3. The plasma laser automated composite spraying system according to claim 2, wherein: The first screening component (66) includes a rotating pipe (661). The rotating pipe (661) is docked in the middle of the first sub-bevel gear (64), and one end of the rotating pipe (661) is inserted into the feed hopper (68). The other end of the rotating pipe (661) is docked with a first sieve tube (662). A first sieve hole (663) is opened inside the first sieve tube (662), and a connecting plate (664) is provided inside the first sieve hole (663). A grinding block (665) is provided on one side of the connecting plate (664), and a brush strip (6610) is installed on the other side of the connecting plate (664). A rotating shaft (666) is docked on the side of the first sieve tube (662) away from the rotating pipe (661). A rotating cylinder (667) is installed outside the rotating shaft (666). The lower end of the rotating cylinder (667) is connected to a convex shaft body (668), and the bottom of the convex shaft body (668) is fixedly provided with a stabilizing frame (669). The lower end of the stabilizing frame (669) is connected to the inside of the connecting box (61).

4. The plasma laser automated composite spraying system according to claim 3, wherein: The second screening component (67) includes a docking pipe (671). The docking pipe (671) is connected to the middle of the second sub-bevel gear (65), and the docking pipe (671) is sleeved outside the rotating pipe (661). One end of the docking pipe (671) is docked with a second sieve tube (672). A second sieve hole (673) is opened inside the second sieve tube (672).

5. The plasma laser automated composite spraying system according to claim 3, characterized in that: The stirring assembly (69) includes a connecting shaft (691), the connecting shaft (691) is inserted into one side of the rotating shaft (666), a docking key bar (692) is fixedly arranged at the upper end of the connecting shaft (691), and the docking key bar (692) is connected to the inside of one side of the rotating shaft (666). An active wheel (693) is installed outside the connecting shaft (691), a belt (694) is drivingly connected to the outside of the active wheel (693), a driven wheel (695) is drivingly connected to the lower end of the belt (694), a rotating rod (696) is butted against one side of the middle of the driven wheel (695), a turntable (697) is fastened to the outside of the rotating rod (696), a docking shaft (698) is embedded in the lower end of the turntable (697), a moving pipe (699) is fixedly arranged at the lower end of the docking shaft (698), a guide rod (6910) is inserted into the moving pipe (699), and both sides of the guide rod (6910) are connected to the inside of the connecting box (61). Docking rings (6911) are equidistantly arranged on both outer ends of the moving pipe (699), and a stirring bar frame (6912) is installed at the lower end of the docking ring (6911).

6. The plasma laser automated composite spraying system according to claim 3, wherein: The middle part of the rotating pipe (661) is hollow, and a long groove is integrally formed at the upper left end of the rotating pipe (661) and is connected to the middle part of the first sub-bevel gear (64).

7. The plasma laser automated composite spraying system according to claim 3, wherein: The grinding blocks (665) are arranged in a long strip shape along the outer side of the connecting plate (664), and the overall installation of the grinding blocks (665) is messy and irregular.

8. The plasma laser automated composite spraying system according to claim 3, wherein: The number of the installed brush bars (6610) is not less than four, and the outer ends of each brush bar (6610) are abutted against the inner wall of the second sieve cylinder (672).

9. The plasma laser automated composite spraying system according to claim 4, wherein: The second sieve cylinder (672) is sleeved outside the first sieve cylinder (662), and the diameter of the second sieve holes (673) formed inside the second sieve cylinder (672) is smaller than the diameter of the first sieve holes (663) formed inside the first sieve cylinder (662).

10. The plasma laser automated composite spraying system according to claim 5, characterized in that: The middle part of the turntable (697) is arranged in an inward concave ring shape, and the lower end of the inward concave ring of the turntable (697) is butted against the upper end of the docking shaft (698).

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