Multifunctional spraying device for surface coating of unmanned aerial vehicle parts

Abstract

The utility model discloses a multifunctional spraying device for coating the surfaces of parts of an unmanned aerial vehicle, relates to the technical field of machining of the parts of the unmanned aerial vehicle, and aims to solve the technical problems that manual pretreatment is needed for spraying and production is not facilitated. A fixed head and a movable head are arranged on the two supports correspondingly, unmanned aerial vehicle parts are fixed between the fixed head and the movable head, a driving motor is fixed to the other side of the top of the fixed base, the driving end of the driving motor is connected with a driving rod fixed to the fixed head, a spraying part is arranged on one side of the fixed base, and a circulating structure is arranged on one side of each support. A pretreatment structure is installed on the periphery of the circulation structure. Through cooperation of the circulation structure and the pretreatment structure, automation of cleaning pretreatment and polishing pretreatment is achieved, errors caused by manual operation are avoided, production efficiency is greatly improved, and the requirement for efficient production of modern unmanned aerial vehicle manufacturing is met.

Description

Technical Field

[0001] This utility model relates to the field of drone component processing technology, and more specifically, to a multifunctional spraying device for coating the surface of drone components. Background Technology

[0002] To enhance maneuverability and speed, drones are typically constructed using carbon fiber, a material known for its high strength, low density, and corrosion resistance. However, cylindrical components like drone arms may retain impurities such as release agents, dust, oil, and processing debris during manufacturing. If these impurities are not thoroughly removed, they can severely compromise the adhesion of coatings to the component surfaces, leading to blistering, peeling, and uneven coating quality. This necessitates manual pre-treatment before painting, hindering production efficiency. Therefore, we propose a multi-functional painting device for coating the surfaces of drone components. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a multi-functional spraying device for coating the surface of UAV parts, so as to solve the technical problem that the current spraying requires manual pretreatment, which is not conducive to production.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a multi-functional spraying device for coating the surface of drone parts, including a fixed base, two brackets installed on one side of the top of the fixed base, a fixed head and a movable head respectively provided on the two brackets, a drone part fixed between the fixed head and the movable head, a drive motor fixed on the other side of the top of the fixed base, a drive rod fixed to the fixed head connected to the drive end of the drive motor, a spraying part provided on one side of the fixed base, a circulation structure provided on one side of the brackets, and a pretreatment structure installed on the outer periphery of the circulation structure.

[0005] Preferably, the spraying unit includes a fixing frame, which is fixed to a fixing base. A spraying head is installed on one side of the fixing frame, and a hinge rod is movably connected to the spraying head. A hydraulic rod is installed at one end of the hinge rod.

[0006] Preferably, the cyclic structure includes a reciprocating cylindrical cam, the outer periphery of which has a curved groove that is connected end to end and forms a spiral trajectory, a constraint sleeve is fitted around the outer periphery of the curved groove, and a limiting ball is integrally formed on the inner wall of the constraint sleeve, the limiting ball sliding within the reciprocating cylindrical cam.

[0007] Preferably, the pretreatment structure includes a circular shell with through openings at both ends. A sealing cap is rotatably connected to both ends of the circular shell, and an air supply port is connected to the sealing cap and connected to an external air source. A propeller is provided on one side of the inner circumference of the circular shell. The inner ring of the propeller is fixed to the outer circumference of the constraint sleeve, and the outer circumference of the propeller is fixed to the inner wall of the circular shell.

[0008] Preferably, the outer periphery of the circular shell has multiple high-pressure air ports, which are arranged in a circular array with the reciprocating cylindrical cam as the center. Inside the circular shell, a partition plate is fixed to isolate the high-pressure air ports from the propeller, and multiple one-way valves are installed on the partition plate.

[0009] Preferably, the outer periphery of the circular shell is provided with a plurality of protrusions, the plurality of protrusions and the high-pressure air port are staggered, and a grinding plate is installed on the outer periphery of the protrusions.

[0010] Preferably, both ends of the reciprocating cylindrical cam are connected to connecting plates, and a central shaft is connected between the two connecting plates. A rotary motor is installed at one end of the central shaft.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model uses an external air source input and the aperture difference between the high-pressure air port and the air supply port to spray high-pressure gas onto the drone parts. At the same time, the circulation structure causes the circular shell to rotate and move back and forth along the curved groove. In conjunction with the drive motor, the parts are rotated to achieve rotary high-pressure air pre-cleaning of the parts at any angle. This thoroughly removes impurities such as release agent, dust, oil, and debris from the surface, providing a clean surface for subsequent spraying. It effectively avoids quality problems such as coating blistering, peeling, and unevenness caused by residual impurities. The above-mentioned automated high-pressure rinsing and cleaning replaces manual operation and solves the problem that manual pre-treatment is not conducive to production when spraying is required.

[0013] 2. This utility model also uses a rotary motor to drive the central shaft to rotate, causing the protrusion with the grinding plate to move to a position where it fits against the surface of the drone parts. Combined with the rotation and movement of the round shell, reciprocating automatic grinding is achieved to roughen the carbon fiber surface, increase surface roughness, increase the contact area between the coating and the carbon fiber, significantly improve the adhesion of the coating, and thus improve the coating quality. This solves the problem that traditional manual operation cannot guarantee the consistency of grinding effect, improves production efficiency and product quality. By replacing manual operation with the above-mentioned automated grinding, the problem that manual pretreatment is required for spraying is not conducive to production is further solved.

[0014] 3. This utility model automates the cleaning and grinding pretreatment processes, changing the previous manual operation mode of cleaning pretreatment. The coordinated operation of the drive motor, hydraulic rod, rotary motor, and various structures reduces manual intervention, which not only reduces labor intensity but also avoids errors caused by manual operation, greatly improving production efficiency and meeting the demand for high-efficiency production in modern UAV manufacturing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure between the circulation structure and the pretreatment structure in this utility model;

[0017] Figure 3 This is a schematic diagram of a half-section of the circular shell in this utility model;

[0018] Figure 4 This is a half-sectional view of the constraint sleeve along the direction of the limiting ball in this utility model.

[0019] The labels in the diagram are as follows: 1. Fixed base; 2. Bracket; 3. Fixed head; 4. Moving head; 5. Drive motor; 6. Drive rod; 7. Spraying section; 8. Circulation structure; 9. Pretreatment structure; 10. Connecting plate; 11. Central shaft; 12. Rotary motor;

[0020] 701. Fixing frame; 702. Spray head; 703. Hinge rod; 704. Hydraulic rod; 801. Reciprocating cylindrical cam; 802. Curved groove; 803. Constraint sleeve; 804. Limit ball; 901. Round shell; 902. Sealing cap; 903. Air supply port; 904. Propeller; 905. High-pressure air port; 906. Partition plate; 907. One-way valve port; 908. Protrusion; 909. Grinding plate. Detailed Implementation

[0021] like Figures 1 to 4As shown, this utility model relates to a multifunctional spraying device for coating the surface of drone parts. It includes a fixed base 1, with two brackets 2 mounted on one side of the top of the fixed base 1. Each bracket 2 has a fixed head 3 and a movable head 4. Drone parts are fixed between the fixed head 3 and the movable head 4. A drive motor 5 is fixed to the other side of the top of the fixed base 1. The drive end of the drive motor 5 is connected to a drive rod 6 fixed to the fixed head 3. The fixed head 3 and the bracket 2 are rotatably connected. The movable head 4 is fixed to the other bracket 2 by threads or by spring pressure. Thus, the fixed head 3 and the movable head 4 can coat the drone parts. The clamping mechanism, in conjunction with the operation of the drive motor 5, can drive the rotation of the UAV parts to achieve uniform spraying. A spraying section 7 is provided on one side of the fixed base 1. The spraying section 7 includes a fixed frame 701, which is fixed to the fixed base 1. A spraying head 702 is installed on one side of the fixed frame 701. The spraying head 702 is connected to an external paint tank and a pump body through a hose. The pump body operates to supply liquid for spraying. A hinge rod 703 is movably connected to the spraying head 702. A hydraulic rod 704 is installed at one end of the hinge rod 703. The spraying head 702 can be adjusted left and right to adjust the spraying position through the action of the hydraulic rod 704.

[0022] To achieve high-pressure impulsive cleaning, a pre-treatment structure 9 is provided on the outer side of the drone components. The pre-treatment structure 9 includes a circular shell 901 with multiple high-pressure air ports 905 on its outer periphery. The multiple high-pressure air ports 905 are arranged in a circular array with a reciprocating cylindrical cam 801 as the center. The two ends of the circular shell 901 are through openings, and the two ends of the circular shell 901 are rotatably connected to a sealing cover 902. An air supply port 903 is connected to the sealing cover 902 and is connected to an external air source. With the input of the external air source, and through the high-pressure air port 905, whose aperture is much smaller than that of the air supply port 903, high-pressure gas can be ejected and sprayed onto the drone components to achieve surface pre-treatment.

[0023] To achieve cyclic movement and improve efficiency, a cyclic structure 8 is centrally located in the pretreatment structure 9. The cyclic structure 8 includes a reciprocating cylindrical cam 801. The outer circumference of the reciprocating cylindrical cam 801 has a curved groove 802 that connects end to end and follows a spiral trajectory. A constraint sleeve 803 is fitted around the outer circumference of the curved groove 802. A limiting ball 804 is integrally formed on the inner wall of the constraint sleeve 803. The limiting ball 804 slides within the reciprocating cylindrical cam 801 to limit movement. To achieve linkage, a propeller 904 is provided on one side of the inner circumference of the cylindrical shell 901. The inner ring of the propeller 904 is connected to the constraint... The outer periphery of sleeve 803 is fixed, and the outer periphery of propeller 904 is fixed to the inner wall of circular shell 901. Through the input of external air source, during the input process, the gas impacts the propeller 904 to rotate, which further drives the circular shell 901 and constraint sleeve 803 to rotate. Due to the cooperation of curved groove 802 and limit ball 804, the circular shell 901 can rotate and move back and forth along curved groove 802 at the same time. With the help of drive motor 5 to drive the rotation of UAV parts, the high-pressure air port 905 can rotate and output high-pressure air at any angle to pre-clean the surface of UAV parts.

[0024] To prevent gas backflow, a partition plate 906 is fixed inside the cylindrical shell 901 to isolate the high-pressure gas port 905 from the propeller 904. Multiple one-way valves 907 are installed on the partition plate 906. When gas passes through the propeller 904, it will enter the high-pressure gas port 905 area through the one-way valves 907 to prevent gas backflow.

[0025] To achieve grinding, connecting plates 10 are connected to both ends of the reciprocating cylindrical cam 801, and a central shaft 11 is connected between the two connecting plates 10. A rotary motor 12 is installed at one end of the central shaft 11. Multiple protrusions 908 are provided on the outer periphery of the cylindrical shell 901. The multiple protrusions 908 and the high-pressure air port 905 are staggered. A grinding plate 909 is installed on the outer periphery of the protrusions 908. The grinding plate 909 is detachable and movable for easy replacement. By operating the rotary motor 12, the central shaft 11 can be rotated, causing the protrusions 908 to move to a position that can fit against the surface of the UAV parts. Thus, by rotating and moving the cylindrical shell 901, reciprocating automatic grinding can be achieved, roughening the carbon fiber surface, increasing the surface roughness, increasing the contact area between the coating and the carbon fiber, improving the adhesion of the coating, and improving the quality of the spraying.

[0026] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A multifunctional spraying device for coating the surface of unmanned aerial vehicle (UAV) components, characterized in that, The device includes a fixed base (1), on one side of the top of the fixed base (1) are two brackets (2), and fixed heads (3) and movable heads (4) are respectively provided on the two brackets (2). UAV components are fixed between the fixed heads (3) and movable heads (4). A drive motor (5) is fixed on the other side of the top of the fixed base (1). The drive end of the drive motor (5) is connected to a drive rod (6) fixed to the fixed head (3). A spraying part (7) is provided on one side of the fixed base (1). A circulation structure (8) is provided on one side of the brackets (2). A pretreatment structure (9) is installed on the outer periphery of the circulation structure (8).

2. The multifunctional spraying device for coating the surface of UAV parts according to claim 1, characterized in that, The spraying unit (7) includes a fixing frame (701), which is fixed to the fixing base (1). A spraying head (702) is installed on one side of the fixing frame (701), and a hinge rod (703) is movably connected to the spraying head (702). A hydraulic rod (704) is installed at one end of the hinge rod (703).

3. A multifunctional spraying device for coating the surface of UAV parts according to claim 1, characterized in that, The cyclic structure (8) includes a reciprocating cylindrical cam (801). The reciprocating cylindrical cam (801) has a curved groove (802) on its outer periphery that is connected end to end and forms a spiral trajectory. A constraint sleeve (803) is fitted around the outer periphery of the curved groove (802). A limiting ball (804) is integrally formed on the inner wall of the constraint sleeve (803). The limiting ball (804) slides within the reciprocating cylindrical cam (801) to limit movement.

4. A multifunctional spraying device for coating the surface of UAV parts according to claim 3, characterized in that, The pretreatment structure (9) includes a circular shell (901) with through openings at both ends. A sealing cap (902) is rotatably connected to both ends of the circular shell (901). An air supply port (903) is connected to the sealing cap (902) and connected to an external air source. A propeller (904) is provided on one side of the inner circumference of the circular shell (901). The inner ring of the propeller (904) is fixed to the outer circumference of the constraint sleeve (803), and the outer circumference of the propeller (904) is fixed to the inner wall of the circular shell (901).

5. A multifunctional spraying device for coating the surface of UAV parts according to claim 4, characterized in that, The outer periphery of the circular shell (901) is provided with multiple high-pressure air ports (905), which are arranged in a ring array with the reciprocating cylindrical cam (801) as the center. Inside the circular shell (901), there is a partition plate (906) that isolates the high-pressure air ports (905) from the propeller (904), and multiple one-way valve ports (907) are installed on the partition plate (906).

6. A multifunctional spraying device for coating the surface of UAV parts according to claim 5, characterized in that, The outer periphery of the circular shell (901) is provided with a plurality of protruding parts (908), and the plurality of protruding parts (908) and the high-pressure air port (905) are staggered. A grinding plate (909) is installed on the outer periphery of the protruding parts (908).

7. A multifunctional spraying device for coating the surface of UAV parts according to claim 6, characterized in that, Both ends of the reciprocating cylindrical cam (801) are connected to connecting plates (10), and a central shaft (11) is connected between the two connecting plates (10). A rotary motor (12) is installed at one end of the central shaft (11).

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