Spray gun device for plasma spraying

Abstract

The utility model belongs to the technical field of plasma spraying devices, and particularly relates to a spray gun device for plasma spraying, which comprises a base plate and a plasma spray gun body, side plates are fixedly connected to the left side and the right side of the upper end face of the base plate, a movable frame is arranged between the two side plates, and connecting rods are fixedly connected to the left side and the right side of the movable frame. Movable grooves are formed in the outer walls of the two side plates in a penetrating mode, the other ends of the two connecting rods penetrate through the two movable grooves correspondingly, electric push rods are installed on the left side and the right side of the upper end face of the base plate correspondingly, the output ends of the two electric push rods are fixedly connected with the bottom ends of the two connecting rods correspondingly, and a support is fixedly connected to the lower end face of the movable frame. The inner side of the support is rotationally connected with a lead screw. The automatic gun distance adjusting device realizes automatic and accurate gun distance adjustment, is convenient to operate and high in automation degree, and improves the working efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of plasma spraying devices, and particularly relates to a spray gun device for plasma spraying. Background Art

[0002] Plasma spraying is a technology for surface strengthening and surface modification of materials, which can endow the substrate surface with properties such as wear resistance, corrosion resistance, high-temperature oxidation resistance, electrical insulation, heat insulation, radiation protection, friction reduction, and sealing. It has been widely used in fields such as aerospace, ships, nuclear industry, and electronic information. During the plasma spraying process, a spray gun is used. The spray gun uses a high-temperature plasma jet as a heat source to heat metal or ceramic powder materials to a molten or semi-molten state, and then rapidly cools and solidifies after hitting the substrate at a high speed, forming a dense coating with special physical properties and a certain thickness.

[0003] Different materials require different gun distances, and the gun distance needs to be adjusted. At the same time, during the processing, the gun distance of the spray gun also needs to be adjusted in real time according to different situations. However, the existing technology cannot achieve precise adjustment of the gun distance of the spray gun during processing, which is inconvenient to adjust and affects work efficiency. Summary of the Invention

[0004] The purpose of the utility model is to provide a spray gun device for plasma spraying, which realizes automatic and precise gun distance adjustment, is convenient to operate, has a high degree of automation, and improves work efficiency.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A spray gun device for plasma spraying, including a substrate and a plasma spray gun body. On the upper end surface of the substrate, side plates are fixedly connected to both the left and right sides. An activity frame is arranged between the two side plates. Connecting rods are fixedly connected to both the left and right sides of the activity frame. Activity grooves are respectively formed through the outer walls of the two side plates. The other ends of the two connecting rods respectively penetrate through the two activity grooves. Electric push rods are respectively installed on the upper end surface of the substrate on both the left and right sides. The output ends of the two electric push rods are respectively fixedly connected to the bottom ends of the two connecting rods. A bracket is fixedly connected to the lower end surface of the activity frame. A lead screw is rotatably connected to the inside of the bracket. Two movable blocks are movably connected to the outer wall of the lead screw. Activity rods are fixedly connected to the lower end surfaces of the two movable blocks. The bottom ends of the two activity rods respectively penetrate through the bracket and are fixedly connected to clamping plates. The plasma spray gun body is detachably connected between the two clamping plates;

[0006] A laser rangefinder is arranged at the nozzle end of the plasma spray gun body, and a controller is arranged on the upper end surface of the activity frame.

[0007] To facilitate automatic adjustment of the gun distance, as a preferred embodiment of the spray gun device for plasma spraying of the utility model, the laser rangefinder and the electric push rod are both electrically connected to the controller.

[0008] To adjust the maximum gun distance, preferably as a spray gun device for plasma spraying of the present utility model, telescopic rods are fixedly connected to the four corners of the lower end surface of the substrate, rollers are rotatably connected to the other ends of the four telescopic rods, and fixing bolts are threadedly connected to the outer walls of the telescopic rods.

[0009] To facilitate the movement of the plasma spray gun body through the substrate, preferably as a spray gun device for plasma spraying of the present utility model, a gun slot is centrally penetrated and opened on the upper end surface of the substrate.

[0010] To facilitate the rotation of the lead screw, preferably as a spray gun device for plasma spraying of the present utility model, the lead screw is a bidirectional lead screw and one end extends to the outside of the bracket and is fixedly connected with a knob.

[0011] To facilitate the clamping of the plasma spray gun body, preferably as a spray gun device for plasma spraying of the present utility model, the cross section of the clamping plate is an arc structure.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] When the gun distance needs to be adjusted, first preset the gun distance through the controller, then start the two electric push rods to make them contract, drive the movable frame and the plasma spray gun body to move downward, thereby driving the laser rangefinder to move. The laser rangefinder can measure the distance between the plasma spray gun body and the material in real time. When the value measured by the laser rangefinder reaches the preset gun distance, the controller receives the signal and controls the two electric push rods to stop working, thus realizing automatic and accurate gun distance adjustment, with convenient operation, high automation degree, and improved work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is a front view structural schematic diagram of the present utility model;

[0016] Figure 2 It is a side view structural schematic diagram of the side plate of the present utility model;

[0017] Figure 3 It is a top view structural schematic diagram of the substrate of the present utility model.

[0018] In the figure: 1, substrate; 2, side plate; 3, movable frame; 4, connecting rod; 5, movable groove; 6, electric push rod; 7, bracket; 8, lead screw; 9, movable block; 10, movable rod; 11, clamping plate; 12, plasma spray gun body; 13, laser rangefinder; 14, controller; 15, telescopic rod; 16, roller; 17, gun groove; 18, knob; 19, fixing bolt. Detailed implementation manner

[0019] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "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 utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, in the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0020] Please refer to Figures 1 to 3 , a spray gun device for plasma spraying, comprising a substrate 1 and a plasma spray gun body 12. Side plates 2 are fixedly connected to both the left and right sides of the upper end surface of the substrate 1. A movable frame 3 is arranged between the two side plates 2. Connecting rods 4 are fixedly connected to both the left and right sides of the movable frame 3. Movable grooves 5 are respectively formed through the outer walls of the two side plates 2. The other ends of the two connecting rods 4 respectively penetrate through the two movable grooves 5. Electric push rods 6 are respectively installed on both the left and right sides of the upper end surface of the substrate 1. The output ends of the two electric push rods 6 are respectively fixedly connected to the bottom ends of the two connecting rods 4. A bracket 7 is fixedly connected to the lower end surface of the movable frame 3. A lead screw 8 is rotatably connected to the inner side of the bracket 7. Two movable blocks 9 are movably connected to the outer wall of the lead screw 8. Movable rods 10 are fixedly connected to the lower end surfaces of the two movable blocks 9. The bottom ends of the two movable rods 10 respectively penetrate through the bracket 7 and are fixedly connected to clamping plates 11. The plasma spray gun body 12 is detachably connected between the two clamping plates 11;

[0021] A laser rangefinder 13 is arranged at the nozzle end of the plasma spray gun body 12, and a controller 14 is arranged on the upper end surface of the movable frame 3.

[0022] In this embodiment: When in use, first place the plasma spray gun body 12 between two clamping plates 11, and rotate the lead screw 8. The lead screw 8 is a bidirectional lead screw, which synchronously drives two movable blocks 9 to move relatively, thereby driving the two clamping plates 11 to move relatively, so as to realize the centering clamping and fixing of the plasma spray gun body 12. When spraying, drive the utility model to move smoothly on the outer wall of the material through a plurality of rollers 16, and drive the plasma spray gun body 12 to perform uniform spraying. When it is necessary to adjust the gun distance, first preset the gun distance through the controller 14, and then start the two electric push rods 6 to contract, driving the movable frame 3 and the plasma spray gun body 12 to move downward, thereby driving the laser rangefinder 13 to move. The laser rangefinder 13 can measure the distance between the plasma spray gun body 12 and the material in real time. When the value measured by the laser rangefinder 13 reaches the preset gun distance, the controller 14 receives the signal and controls the two electric push rods 6 to stop working, thereby realizing automatic and precise gun distance adjustment, with convenient operation, high automation degree, and improved work efficiency.

[0023] As a technical optimization scheme of the utility model, both the laser rangefinder 13 and the electric push rod 6 are electrically connected to the controller 14.

[0024] In this embodiment: Both the laser rangefinder 13 and the electric push rod 6 are electrically connected to the controller 14. When the value measured by the laser rangefinder 13 reaches the preset gun distance, the controller 14 receives the signal and controls the two electric push rods 6 to stop working, thereby realizing automatic and precise gun distance adjustment.

[0025] As a technical optimization scheme of the utility model, telescopic rods 15 are fixedly connected to the four corners of the lower end surface of the substrate 1, the other ends of the four telescopic rods 15 are rotatably connected to rollers 16, and fixing bolts 19 are threadedly connected to the outer walls of the telescopic rods 15.

[0026] In this embodiment: The telescopic rod 15 can adjust the distance between the substrate 1 and the material to adjust the maximum gun distance range of the utility model, which is convenient to use.

[0027] As a technical optimization scheme of the utility model, a gun slot 17 is formed through the center of the upper end surface of the substrate 1.

[0028] In this embodiment: A gun slot 17 is formed through the center of the upper end surface of the substrate 1, which is convenient for the plasma spray gun body 12 to penetrate the substrate 1 for movement.

[0029] As a technical optimization scheme of the utility model, the lead screw 8 is a bidirectional lead screw and one end extends to the outside of the bracket 7 and is fixedly connected to a knob 18.

[0030] In this embodiment: The lead screw 8 is a bidirectional lead screw, that is, the thread directions on both sides of the outer wall are opposite, so as to synchronously drive the two clamping plates 11 to move relatively or away from each other, realizing the centering clamping and fixing of the plasma spray gun body 12. The knob 18 facilitates driving the rotation of the lead screw 8.

[0031] As a technical optimization scheme of the present invention, the cross-section of the clamping plate 11 is an arc structure.

[0032] In this embodiment: The cross-section of the clamping plate 11 is an arc structure, which can better clamp and fix the plasma spray gun body 12.

[0033] Working principle: When in use, first place the plasma spray gun body 12 between the two clamping plates 11, and rotate the lead screw 8. The lead screw 8 is a bidirectional lead screw, which synchronously drives the two movable blocks 9 to move relatively, thereby driving the two clamping plates 11 to move relatively, realizing the centering clamping and fixing of the plasma spray gun body 12; when spraying, drive the present invention to move smoothly on the outer wall of the material through a plurality of rollers 16, thereby driving the plasma spray gun body 12 to perform uniform spraying. When the gun distance needs to be adjusted, first preset the gun distance through the controller 14, and then start the two electric push rods 6 to contract, driving the movable frame 3 and the plasma spray gun body 12 to move downward, thereby driving the laser rangefinder 13 to move. The laser rangefinder 13 can measure the distance from the material in real time. When the value measured by the laser rangefinder 13 reaches the preset gun distance, the controller 14 receives the signal and controls the two electric push rods 6 to stop working, thereby realizing automatic and accurate gun distance adjustment, with convenient operation, high automation degree, and improved work efficiency.

[0034] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A spray gun device for plasma spraying, comprising a substrate (1) and a plasma spray gun body (12), characterized in that: The left and right sides of the upper end surface of the base plate (1) are fixedly connected to side plates (2), a movable frame (3) is arranged between the two side plates (2), the left and right sides of the movable frame (3) are fixedly connected to connecting rods (4), the outer walls of the two side plates (2) are penetrated with movable grooves (5), the other ends of the two connecting rods (4) respectively penetrate the two movable grooves (5), the left and right sides of the upper end surface of the base plate (1) are installed with electric push rods (6), the output ends of the two electric push rods (6) are respectively connected to the two connecting rods (5). The bottom end of the connecting rod (4) is fixedly connected, the lower end surface of the movable frame (3) is fixedly connected to a bracket (7), the inner side of the bracket (7) is rotatably connected to a screw rod (8), the outer wall of the screw rod (8) is movably connected to two movable blocks (9), the lower end surfaces of the two movable blocks (9) are fixedly connected to movable rods (10), the bottom ends of the two movable rods (10) pass through the bracket (7) and are fixedly connected to clamps (11), and the plasma spray gun body (12) is detachably connected between the two clamps (11); A laser rangefinder (13) is provided at the nozzle end of the plasma spray gun body (12), and a controller (14) is provided on the upper end surface of the movable frame (3).

2. A spray gun device for plasma spraying according to claim 1, characterized in that: The laser rangefinder (13) and the electric push rod (6) are both electrically connected to the controller (14).

3. The spray gun device for plasma spraying according to claim 1, characterized in that: Telescopic rods (15) are fixedly connected at the four corners of the lower end surface of the base plate (1), the other ends of the four telescopic rods (15) are rotatably connected to rollers (16), and the outer walls of the telescopic rods (15) are threadedly connected to fixing bolts (19).

4. A spray gun device for plasma spraying according to claim 1, characterized in that: A gun groove (17) is provided through the center of the upper end surface of the base plate (1).

5. The spray gun device for plasma spraying according to claim 1, characterized in that: The screw rod (8) is a bidirectional screw rod and one end of the screw rod extends to the outside of the bracket (7) and is fixedly connected to a knob (18).

6. The spray gun device for plasma spraying according to claim 1, characterized in that: The cross section of the clamping plate (11) is an arc-shaped structure.

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