Spraying device for unmanned aerial vehicle part production

By designing spraying devices for the production of drone parts, including spraying units and winding units, the problem of uneven coating distribution during spiral blades is solved, and uniform coating distribution and balanced performance of spiral blades are improved.

CN119793747APending Publication Date: 2025-04-11SUZHOU YUNLEI PRECISION TECH CO LTD
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Patent Information

Application Number
CN202411955358.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-28
Publication Date
2025-04-11

AI Technical Summary

Technical Problem

When spraying spiral blades in the existing spraying method, excessive paint is likely to accumulate in the concave areas, while insufficient paint may occur in the convex areas, resulting in uneven paint distribution and affecting the balance performance of the spiral blades.

Method used

A spraying device for the production of drone parts is designed, including a spraying unit and a winding unit. The spraying unit realizes all-round spraying through a robotic arm and a spraying gun. The winding unit drives the spiral blades to rotate through the drive motor and gear belt, so that the paint can move in a circular motion in the concave area and transition to the convex area to achieve uniform distribution.

Benefits of technology

Through the design of the winding unit, the problem of excessive accumulation of paint in the concave area of ​​the spiral blades and insufficient paint in the convex area is solved, the uniform distribution of the paint is improved, and the balanced performance of the spiral blades is ensured.

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Abstract

The invention is suitable for the technical field of unmanned aerial vehicle spraying, and provides a spraying device for unmanned aerial vehicle part production, which comprises a spraying unit and a winding unit, the spraying unit comprises a supporting frame, a mechanical arm, a spraying gun, a bearing box, a rotating motor, a rotating plate, a transverse plate and a spiral blade. The winding unit comprises a driving motor, a driving gear, a transmission gear, a main gear, a secondary gear, a gear belt and a winding piece; when the connecting shaft rotates, the rotating shaft can be driven to eccentrically rotate, so that the main shaft and the fixed shaft synchronously eccentrically rotate, the spiral blade connected with the fixed shaft rotates, the coating in the concave surface area of the spiral blade rotates, the coating does circular motion in the concave surface area, and the coating is uniformly dispersed in the coating. And the coating is gradually transited to the convex surface area and uniformly flows and covers along the side wall of the convex surface area, so that the uniform distribution of the coating is improved, and the balance performance of the spiral blade is further ensured.
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Description

Technical Field

[0001] The present invention relates to the field of drone spraying technology, and more specifically, to a spraying device for producing drone parts. Background Art

[0002] A drone is an aircraft that flies remotely or autonomously and is widely used in many fields. Drone parts and components make up the various functional modules and components of a drone, including the fuselage frame, power system, battery, flight system, communication system, sensors, cameras and gimbals, landing gear, antennas, cooling systems, outer casings and protective covers, lighting systems, etc. Among them, propeller blades are also one of the components of the power system.

[0003] In the existing technology, the production process of spiral blades (such as drone propellers) involves multiple steps, from design to final molding, which requires high precision and strict quality control; among them, the spraying process is a key link in the production process, aiming to improve the surface properties of the blades, such as wear resistance, corrosion resistance, UV resistance and aesthetics; it includes five steps: surface pretreatment, primer spraying, topcoat spraying, varnish spraying and post-processing. Each step needs to be strictly controlled to ensure the quality and performance of the coating.

[0004] Existing spraying methods are divided into two types: vertical spraying and horizontal spraying. However, during the painting process, it was found that most spiral blades usually have complex aerodynamic surfaces, which will cause the concave area of ​​the spiral blade to easily accumulate too much paint when the spiral blade is placed horizontally for spraying, while the convex area may have insufficient paint, affecting the uniform distribution of paint during spraying.

[0005] At the same time, due to the small area of ​​the edge and tip area of ​​the spiral blade, the paint is easy to lose, and some of the lost paint will flow again to the concave area or concave area, which will cause uneven spraying thickness and reduce the balance performance of the spiral blade; for this reason, a spraying device for the production of drone parts is proposed to improve the existing problems. Summary of the invention

[0006] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a spraying device for the production of drone parts.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a spraying device for the production of unmanned aerial vehicle parts, comprising a spraying unit and a winding unit; wherein the spraying unit comprises a support frame, a mechanical arm arranged on the side wall of the support frame, a spray gun arranged at the execution end of the mechanical arm, a carrying box arranged below the support frame, a rotating motor arranged in the carrying box, a rotating plate arranged at the output end of the rotating motor, a horizontal plate arranged at both ends of the rotating plate, and spiral blades arranged at both ends of the top of the horizontal plate; the winding unit is arranged between the spiral blades, and comprises a driving motor, a driving gear arranged at the output end of the driving motor, a transmission gear symmetrically arranged on both sides of the driving gear in a radial direction, a main gear arranged at one end of the transmission gear, a secondary gear arranged on one side of the main gear, a gear belt sleeved on the main gear and the secondary gear, and a winding member arranged at one end of the secondary gear; the winding member can drive the corresponding spiral blade to rotate, so that the paint in the concave area of ​​the spiral blade flows evenly on the convex area.

[0008] The present invention is further configured as follows: the output end of the rotating motor passes through the top of the bearing box and is connected to the bottom of the rotating plate, the rotating plate and the transverse plate are vertically distributed, and a cavity is opened in the transverse plate.

[0009] The present invention is further configured as follows: the drive motor is located in the cavity, the output end of the drive motor passes through the top of the cross plate and is connected to the drive gear, and the main gear, secondary gear and gear belt are all located in the cavity.

[0010] The present invention is further configured as follows: the winding component includes a fixed pile, a connecting shaft rotatably connected to the fixed pile, a winding shaft eccentrically arranged at one end of the connecting shaft, a main shaft arranged at one end of the winding shaft away from the connecting shaft, and a fixed shaft arranged at one end of the main shaft away from the winding shaft.

[0011] The present invention is further configured as follows: the fixed pile is located at one end of the top of the corresponding horizontal plate, one end of the secondary gear passes through the top of the horizontal plate and is connected to the end of the connecting shaft away from the winding axis, the winding axis is inclined, and a fixing hole is provided at the end of the fixed shaft away from the main axis.

[0012] The present invention is further configured as follows: fixing plates are symmetrically arranged on both sides of the fixing pile in the axial direction, one end of the side wall of the fixing plate is rotatably connected to a first bearing, and the first bearings are relatively distributed.

[0013] The present invention is further configured as follows: a second bearing is symmetrically rotatably connected to the outer wall of the main shaft in the radial direction, two of the first bearings and two of the second bearings are evenly distributed around the outer wall of the main shaft, the first bearings and the second bearings are staggered, and the outer wall of the first bearing is connected to the outer wall of the adjacent second bearing.

[0014] By adopting the above technical solution, when the connecting shaft rotates, it will also drive the winding shaft to perform eccentric winding, so that the main shaft and the fixed shaft can synchronously perform eccentric winding, and then the spiral blade connected to the fixed shaft can perform winding motion, so that the paint in the concave area of ​​the spiral blade can rotate and swirl, so that the paint can perform circular motion in the concave area, and gradually transition to the convex area, and evenly flow and cover along the side wall of the convex area.

[0015] The present invention is further configured as follows: the winding unit also includes a coating component, which is evenly arranged around the spiral blade, and includes an extension plate, a rotating cylinder arranged on the top of the extension plate, a telescopic cylinder arranged at the rotating end of the rotating cylinder, and a coating piece arranged at the telescopic end of the telescopic cylinder; the coating piece is used to evenly coat the paint on the side of the spiral blade.

[0016] The present invention is further configured as follows: the rotating cylinder is located at one end of the top of the extension plate, and one end of the extension plate away from the rotating cylinder is connected to the outer wall of the fixed shaft.

[0017] The present invention is further configured as follows: the smearing member comprises a clamping cylinder, a clamping plate symmetrically arranged at the clamping end of the clamping cylinder, and a smearing pad arranged on the side wall of the clamping plate; the smearing pads are relatively distributed.

[0018] By adopting the above technical solution, the telescopic cylinder is started, and its telescopic end pushes the smearing piece close to the side of the spiral blade, so that the smearing piece can absorb the paint that is easily lost in the edge and tip area of ​​the spiral blade, and then smear it on the edge and tip area of ​​the spiral blade.

[0019] In summary, the present application includes at least one of the following beneficial technical effects: (1) When the connecting shaft rotates, it will also drive the winding shaft to rotate eccentrically, so that the main shaft and the fixed shaft rotate eccentrically synchronously, and then the spiral blade connected to the fixed shaft rotates, so that the paint in the concave area of ​​the spiral blade rotates and rotates, so that the paint makes a circular motion in the concave area and gradually transitions to the convex area, and flows and covers evenly along the side wall of the convex area, thereby reducing the problem that the concave area of ​​the spiral blade is prone to excessive accumulation of paint, while the convex area may be insufficient in paint. At the same time, it also solves the problem that the edge and tip area of ​​the spiral blade are small in area, so the paint is easy to lose, and some of the lost paint will flow to the concave area or concave area again; the uniform distribution of the paint is improved, thereby ensuring the balance performance of the spiral blade.

[0020] (2) By starting the clamping cylinder, the clamping plates are driven closer to each other, so that the coating pad moves synchronously to absorb the paint that is easily lost on the side of the spiral blade. Subsequently, the clamping cylinder drives the two clamping plates closer to each other again, and the coating pad squeezes the side of the spiral blade, so that the coating pad can release the absorbed paint again. Then, by starting the rotating cylinder, the coating pad can be driven to rotate, so that the coating pad can evenly smooth the released paint, thereby reducing the problem of paint loss due to the small area of ​​the edge and tip of the spiral blade, thereby ensuring the uniformity of the coating thickness. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The figure is a schematic diagram of the overall structure of the spraying device used for the production of UAV parts according to the present invention.

[0022] Figure 2 It is a schematic diagram of the overall structure of the robot arm and the spray gun in the present invention.

[0023] Figure 3 It is a schematic diagram of the overall structure of the rotating motor, the rotating plate and the transverse plate in the present invention.

[0024] Figure 4 It is a schematic diagram of the overall structure of the winding unit in the present invention.

[0025] Figure 5 It is an exploded view of the convoluted part in the present invention.

[0026] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0027] Figure 7 It is a schematic diagram of the overall structure of the first bearing and the second bearing in the present invention.

[0028] Description of reference numerals: 1, spray unit; 11, support frame; 12, mechanical arm; 13, spray gun; 14, carrying box; 15, rotating motor; 16, rotating plate; 17, horizontal plate; 171, cavity; 18, spiral blade; 2. winding unit; 21. driving motor; 22. driving gear; 23. transmission gear; 24. main gear; 25. secondary gear; 26. gear belt; 27. winding member; 271. fixing pile; 272. connecting shaft; 273. winding shaft; 274. main shaft; 275. fixing shaft; 2751. fixing hole; 276. fixing plate; 277. first bearing; 278. second bearing; 3. Coating assembly; 31. Extension plate; 32. Rotating cylinder; 33. Telescopic cylinder; 34. Coating piece; 341. Clamping cylinder; 342. Clamping plate; 343. Coating pad. DETAILED DESCRIPTION

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0030] See also Figure 1-Figure 7 , the present invention provides the following technical solutions: Example 1, see Figure 1-Figure 7 A spraying device for the production of UAV parts includes a spraying unit 1 and a spinning unit 2; wherein the spraying unit 1 is used to uniformly spray the spiral blade 18 in all directions, aiming to improve the surface properties of the blade, such as wear resistance, corrosion resistance, UV resistance and aesthetics; and two spraying stations are set, and the sprayed spiral blade 18 is carried to the front of the staff by rotation for easy picking.

[0031] The main purpose of the winding unit 2 is to rotate and swirl the paint in the concave area of ​​the spiral blade 18, so that the paint makes a circular motion in the concave area and gradually transitions to the convex area, flowing and covering evenly along the side wall of the convex area, thereby reducing the problem of excessive accumulation of paint in the concave area of ​​the spiral blade and insufficient paint in the convex area, improving the uniform distribution of the paint, and thus ensuring the balance performance of the spiral blade 18.

[0032] See also Figure 1-Figure 3 Specifically, the spraying unit 1 includes a support frame 11, a robot arm 12 arranged on the side wall of the support frame 11, a spray gun 13 arranged at the execution end of the robot arm 12, a carrying box 14 arranged below the support frame 11, a rotating motor 15 arranged in the carrying box 14, a rotating plate 16 arranged at the output end of the rotating motor 15, a horizontal plate 17 arranged at both ends of the rotating plate 16, and a spiral blade 18 arranged at both ends of the top of the horizontal plate 17.

[0033] When the spiral blade 18 is sprayed, the robot arm 12 rotates on the base, the rotation angle is adjusted, the robot arm 12 adjusts the up and down position, and the spray gun 13 on the robot arm 12 rotates, so as to facilitate all-round spraying of the spiral blade 18.

[0034] At the same time, the rotating motor 15 is started, and its output end drives the rotating plate 16 to rotate, so that the corresponding horizontal plate 17 can be rotated to the bottom of the spray gun 13, and the corresponding two spiral blades 18 rotate synchronously to the bottom of the spray gun 13 to facilitate accurate spraying.

[0035] See also Figure 4-Figure 7Specifically, the winding unit 2 is arranged between the spiral blades 18, and includes a driving motor 21, a driving gear 22 arranged at the output end of the driving motor 21, a transmission gear 23 symmetrically arranged on both sides of the driving gear 22 in the radial N direction, a main gear 24 arranged at one end of the transmission gear 23, a secondary gear 25 arranged on one side of the main gear 24, a gear belt 26 sleeved on the main gear 24 and the secondary gear 25, and a winding member 27 arranged at one end of the secondary gear 25; the winding member 27 can drive the corresponding spiral blade 18 to rotate, so that the paint in the concave area of ​​the spiral blade 18 flows evenly on the convex area.

[0036] During the spraying process, the drive motor 21 starts and drives the drive gear 22 to rotate. Since the drive gear 22 is meshed with the transmission gear 23 for transmission, the main gear 24 can be driven to rotate synchronously through the transmission gear 23. Since the gear belt 26 is mounted on the main gear 24 and the secondary gear 25, the gear belt 26 and the secondary gear 25 can drive the winding member 27 to start, and the paint in the concave area of ​​the spiral blade 18 is rotated and wound, so that the paint makes a circular motion in the concave area and gradually transitions to the convex area, and flows and covers evenly along the side wall of the convex area, thereby reducing the problem that the concave area of ​​the spiral blade is prone to accumulate too much paint, while the convex area may be insufficient in paint, thereby improving the uniform distribution of the paint, and thus ensuring the balance performance of the spiral blade 18.

[0037] See also Figure 1-Figure 3 Furthermore, the output end of the rotating motor 15 passes through the top of the carrying box 14 and is connected to the bottom of the rotating plate 16. The rotating plate 16 and the horizontal plate 17 are vertically distributed, and a cavity 171 is opened in the horizontal plate 17; the driving motor 21 is located in the cavity 171, and the output end of the driving motor 21 passes through the top of the horizontal plate 17 and is connected to the driving gear 22. The main gear 24, the secondary gear 25 and the gear belt 26 are all located in the cavity 171.

[0038] See also Figure 4-Figure 5 , Figure 7 Furthermore, the winding member 27 includes a fixed pile 271, a connecting shaft 272 rotatably connected to the fixed pile 271, a winding shaft 273 eccentrically arranged at one end of the connecting shaft 272, a main shaft 274 arranged at one end of the winding shaft 273 away from the connecting shaft 272, and a fixed shaft 275 arranged at one end of the main shaft 274 away from the winding shaft 273.

[0039] Among them, when the secondary gear 25 rotates, it will drive the connecting shaft 272 to rotate synchronously. Since the winding shaft 273 is eccentrically set at one end of the connecting shaft 272, when the connecting shaft 272 rotates, it will also drive the winding shaft 273 to rotate eccentrically, so that the main shaft 274 and the fixed shaft 275 are synchronously eccentrically rotated, and then the spiral blade 18 connected to the fixed shaft 275 is rotated, so that the paint in the concave area of ​​the spiral blade 18 rotates and rotates, so that the paint makes a circular motion in the concave area and gradually transitions to the convex area, and flows and covers evenly along the side wall of the convex area, thereby reducing the problem that the concave area of ​​the spiral blade is prone to accumulate too much paint, while the convex area may be insufficient in paint. At the same time, it also solves the problem that the edge and tip areas of the spiral blade are small in area, the paint is easy to lose, and some of the lost paint will flow to the concave area or the concave area again; the uniform distribution of the paint is improved, thereby ensuring the balance performance of the spiral blade 18.

[0040] It should be noted that, through the design of the fixing hole 2751 , the supporting end of the spiral blade 18 can be inserted into the fixing hole 2751 , so that the spiral blade 18 is fixed to the fixing shaft 275 .

[0041] See also Figure 4-Figure 5 , Figure 7 Furthermore, the fixed pile 271 is located at one end of the top of the corresponding horizontal plate 17, one end of the secondary gear 25 passes through the top of the horizontal plate 17 and is connected to the end of the connecting shaft 272 away from the winding shaft 273, the winding shaft 273 is inclined, and a fixing hole 2751 is provided at one end of the fixed shaft 275 away from the main shaft 274; fixed plates 276 are symmetrically arranged on both sides of the fixed pile 271 in the axial M direction, and a first bearing 277 is arranged at one end of the side wall of the fixed plate 276, and the first bearings 277 are relatively distributed.

[0042] See also Figure 4-Figure 5 , Figure 7 Furthermore, second bearings 278 are symmetrically arranged on the outer wall of the main shaft 274 in the radial N direction. The two first bearings 277 and the two second bearings 278 are evenly distributed around the outer wall of the main shaft 274. The first bearings 277 and the second bearings 278 are staggered, and the outer wall of the first bearing 277 is connected to the outer wall of the adjacent second bearing 278.

[0043] Among them, during the eccentric rotation of the main shaft 274, on the one hand, the outer wall sides of the main shaft 274 will also rotate in the corresponding inner ring of the second bearing 278, and drive the entire second bearing 278 to swing. Since the outer wall of the first bearing 277 is connected to the outer wall of the adjacent second bearing 278, when the entire second bearing 278 swings, it will also drive the outer ring of the first bearing 277 to rotate around the inner ring of the first bearing 277, thereby achieving the purpose of guiding the rotation.

[0044] It should be noted that the side wall of the fixed plate 276 is connected to the inner ring of the first bearing 277, and the outer wall of the main shaft 274 is connected to the inner ring of the second bearing 278. The outer wall of the first bearing 277 is connected to the outer wall of the adjacent second bearing 278, so there is no interference.

[0045] Embodiment 2: Through the technical solution of embodiment 1, although the problem in the prior art that when the spiral blade is placed horizontally for spraying is solved, the concave area of ​​the spiral blade is prone to accumulate too much paint, while the convex area may be insufficient; however, it still does not solve the problem that the edge and tip area of ​​the spiral blade are small in area, the paint is easy to lose, and then the thickness of the spraying is uneven; for this reason, the following solution is proposed: See also Figure 6 Furthermore, the winding unit 2 also includes a coating component 3, which is evenly arranged around the spiral blade 18, and includes an extension plate 31, a rotating cylinder 32 arranged on the top of the extension plate 31, a telescopic cylinder 33 arranged at the rotating end of the rotating cylinder 32, and a coating member 34 arranged at the telescopic end of the telescopic cylinder 33; the coating member 34 is used to evenly coat the paint on the side of the spiral blade 18.

[0046] Among them, when the supporting end of the spiral blade 18 is inserted into the fixing hole 2751, the four blades of the spiral blade 18 are aligned and distributed with the corresponding extension plate 31, and then the telescopic cylinder 33 is started, and its telescopic end pushes the smearing piece 34 close to the side of the spiral blade 18, so that the smearing piece 34 can absorb the paint that is easy to lose in the edge and tip area of ​​the spiral blade, and then apply it to the edge and tip area of ​​the spiral blade, thereby reducing the problem of easy loss of paint in the edge and tip area of ​​the spiral blade due to its small area, ensuring the uniformity of the thickness of the paint, and improving the balance performance of the spiral blade.

[0047] See also Figure 6 Furthermore, the rotating cylinder 32 is located at one end of the top of the extension plate 31, and the end of the extension plate 31 away from the rotating cylinder 32 is connected to the outer wall of the fixed shaft 275; the smearing member 34 includes a clamping cylinder 341, a clamping plate 342 symmetrically arranged at the clamping end of the clamping cylinder 341, and a smearing pad 343 arranged on the side wall of the clamping plate 342; the smearing pads 343 are relatively distributed.

[0048] Among them, the clamping cylinder 341 is started, driving the clamping plates 342 to approach each other, so that the coating pad 343 is displaced synchronously to absorb the paint that is easy to lose on the side of the spiral blade 18. Subsequently, the clamping cylinder 341 drives the two clamping plates 342 to approach each other again, and the coating pad 343 squeezes the side of the spiral blade 18, so that the coating pad 343 can release the absorbed paint again, and then the rotating cylinder 32 is started to drive the coating pad 343 to rotate, so that the coating pad 343 can evenly smooth the released paint, thereby reducing the problem of easy loss of paint due to the small area of ​​the edge and tip area of ​​the spiral blade, ensuring the uniformity of the coating thickness, and improving the balance performance of the spiral blade.

[0049] It should be noted that the application pad 343 can be a sponge pad, sponge material, etc.

[0050] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

Claims

1. A spraying device for the production of drone parts, characterized in that: include, A spraying unit (1), comprising a support frame (11), a mechanical arm (12) arranged on a side wall of the support frame (11), a spraying gun (13) arranged at an execution end of the mechanical arm (12), a carrying box (14) arranged below the support frame (11), a rotating motor (15) arranged in the carrying box (14), a rotating plate (16) arranged at an output end of the rotating motor (15), a horizontal plate (17) arranged at both ends of the rotating plate (16), and spiral blades (18) arranged at both ends of the top of the horizontal plate (17); and, A winding unit (2) is arranged between the spiral blades (18), comprising a driving motor (21), a driving gear (22) arranged at the output end of the driving motor (21), a transmission gear (23) symmetrically arranged on both sides of the driving gear (22) in a radial direction, a main gear (24) arranged at one end of the transmission gear (23), a secondary gear (25) arranged at one side of the main gear (24), a gear belt (26) sleeved on the main gear (24) and the secondary gear (25), and a winding member (27) arranged at one end of the secondary gear (25); the winding member (27) can drive the corresponding spiral blade (18) to rotate, so that the paint in the concave area of ​​the spiral blade (18) flows evenly on the convex area.

2. The spraying device for the production of drone parts according to claim 1 is characterized in that: The output end of the rotating motor (15) passes through the top of the bearing box (14) and is connected to the bottom of the rotating plate (16). The rotating plate (16) and the horizontal plate (17) are vertically arranged, and a cavity (171) is provided in the horizontal plate (17).

3. The spraying device for the production of drone parts according to claim 2 is characterized in that: The drive motor (21) is located in the cavity (171); the output end of the drive motor (21) passes through the top of the transverse plate (17) and is connected to the drive gear (22); the main gear (24), the secondary gear (25) and the gear belt (26) are all located in the cavity (171).

4. The spraying device for the production of drone parts according to claim 1 is characterized in that: The convolution member (27) comprises a fixed pile (271), a connecting shaft (272) rotatably connected to the fixed pile (271), a convolution shaft (273) eccentrically arranged at one end of the connecting shaft (272), a main shaft (274) arranged at one end of the convolution shaft (273) away from the connecting shaft (272), and a fixed shaft (275) arranged at one end of the main shaft (274) away from the convolution shaft (273).

5. The spraying device for the production of drone parts according to claim 4 is characterized in that: The fixing pile (271) is located at one end of the top of the corresponding horizontal plate (17), one end of the secondary gear (25) passes through the top of the horizontal plate (17) and is connected to one end of the connecting shaft (272) away from the winding shaft (273), the winding shaft (273) is inclined, and a fixing hole (2751) is provided at one end of the fixing shaft (275) away from the main shaft (274).

6. The spraying device for the production of drone parts according to claim 5 is characterized in that: Fixed plates (276) are symmetrically arranged on both sides of the fixed pile (271) in the axial direction, and a first bearing (277) is arranged at one end of the side wall of the fixed plate (276), and the first bearings (277) are relatively distributed.

7. The spraying device for the production of drone parts according to claim 6 is characterized in that: Second bearings (278) are also symmetrically arranged on the outer wall of the main shaft (274) in the radial direction, and two of the first bearings (277) and two of the second bearings (278) are evenly distributed around the outer wall of the main shaft (274). The first bearings (277) and the second bearings (278) are staggered, and the outer wall of the first bearing (277) is connected to the outer wall of the adjacent second bearing (278).

8. The spraying device for the production of drone parts according to claim 4 is characterized in that: The winding unit (2) further comprises a coating component (3), the coating component (3) being evenly arranged around the spiral blade (18), and comprising an extension plate (31), a rotating cylinder (32) arranged at the top of the extension plate (31), a telescopic cylinder (33) arranged at the rotating end of the rotating cylinder (32), and a coating member (34) arranged at the telescopic end of the telescopic cylinder (33); the coating member (34) is used to evenly coat the paint on the side of the spiral blade (18).

9. The spraying device for the production of drone parts according to claim 8 is characterized in that: The rotating cylinder (32) is located at one end of the top of the extension plate (31), and one end of the extension plate (31) away from the rotating cylinder (32) is connected to the outer wall of the fixed shaft (275).

10. The spraying device for the production of drone parts according to claim 9 is characterized in that: The smearing member (34) comprises a clamping cylinder (341), a clamping plate (342) symmetrically arranged at the clamping end of the clamping cylinder (341), and a smearing pad (343) arranged on the side wall of the clamping plate (342); the smearing pads (343) are relatively distributed.