Polishing device for production and processing of fixed wing of unmanned aerial vehicle

Abstract

The invention discloses polishing equipment for unmanned aerial vehicle fixed wing production and machining, which comprises a U-shaped mounting frame, a front-back moving assembly convenient to adjust according to the fixed wing polishing position is arranged in the U-shaped mounting frame, a supporting frame is arranged in the U-shaped mounting frame through the front-back moving assembly, and a connecting frame is fixedly arranged at the top of the supporting frame. A hydraulic push rod is driven to move through an arc-shaped moving assembly, the hydraulic push rod drives an L-shaped plate to move through a pressure detection assembly, the L-shaped plate drives a grinding assembly to move, the grinding assembly moves to different grinding positions of the fixed wing, and the hydraulic push rod can make the grinding assembly make contact with the arc-shaped faces of the different positions of the fixed wing; and therefore, the grinding position and angle can be flexibly adjusted, the front edge, the rear edge, the wingtip and some internal structures of the wing can be thoroughly ground, and the situation that the grinding quality is affected due to grinding dead angles is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding the fixed wings of unmanned aerial vehicles (UAVs), and in particular to grinding equipment for producing and processing the fixed wings of UAVs. Background Art

[0002] Fixed-wing UAV, a fixed-wing UAV is an unmanned aerial vehicle that uses fixed wings to generate lift for flight. A general fixed-wing UAV system consists of five main parts: the body structure, avionics system, power system, take-off and landing system, and ground control station. The body structure consists of a detachable modular body, the avionics system consists of a flight control computer, sensors, payload, wireless communication, and air-to-ground batteries, the power system consists of power batteries, propellers, and brushless motors, the take-off and landing system consists of a catapult rope, catapult rack, and parachute, and the ground control station includes a ground station computer, handles, radios and other communication equipment to assist in completing route planning tasks and monitoring the flight process. It has been widely used in surveying and mapping, geology, petroleum, agriculture and forestry and other professions, and has broad market application prospects.

[0003] When a fixed-wing drone is flying, the wings move relative to the air, supporting the fixed-wing drone to overcome gravity and soar in the air. Therefore, the fixed wings are of great significance to maintaining the stability of the flight attitude. The fixed wings need to be polished during the production process. Polishing makes the surface of the fixed wings smoother, reducing the air friction resistance encountered by the fixed-wing drone during flight, so that the drone can obtain greater lift under the same power. Therefore, fixed-wing polishing is particularly important for fixed-wing drones.

[0004] When polishing fixed wings, a polishing device is usually used to polish the fixed wings. The surface of the fixed wings is mostly curved, and the leading edge and trailing edge of the fixed wings have large curvatures. A vertically movable polishing structure is used, and the fixed wings need to be adjusted multiple times according to the polishing requirements. The polishing position and angle cannot be flexibly adjusted, especially at the leading edge, trailing edge, wingtip and some internal structures of the wings. Comprehensive and thorough polishing is impossible, and polishing dead angles are prone to occur, affecting the polishing quality. Based on the above problems, the present application proposes a polishing equipment for the production and processing of UAV fixed wings. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a grinding equipment for the production and processing of UAV fixed wings, which solves the problem that the grinding position and angle cannot be flexibly adjusted, especially the leading edge, trailing edge, wingtip and some internal structures of the wing, which cannot be comprehensively and thoroughly polished, easily resulting in grinding dead corners and affecting the grinding quality.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A grinding device for the production and processing of fixed-wing drones comprises a U-shaped mounting frame, wherein a forward and backward moving component for adjusting according to the grinding position of the fixed wing is arranged inside the U-shaped mounting frame, a support frame is arranged inside the U-shaped mounting frame via the forward and backward moving component, a connecting frame is fixedly arranged on the top of the support frame, an arc-shaped moving component for adjusting according to the grinding position of the fixed wing is arranged inside the connecting frame, a hydraulic push rod is arranged inside the connecting frame via the arc-shaped moving component, an output end of the hydraulic push rod is provided with a pressure detection component for controlling the grinding pressure, an L-shaped plate is provided at the output end of the hydraulic push rod via the pressure detection component, and a grinding component for grinding the fixed wing is arranged inside the L-shaped plate.

[0007] Preferably, the forward and backward moving component includes a servo motor fixedly mounted on the front side of the U-shaped mounting frame, a screw is fixedly provided at the output end of the servo motor, a screw sleeve is threadedly provided on the surface of the screw, fixed shafts are fixedly provided on the left and right sides of the screw sleeve, a roller is rotatably provided on the surface of the fixed shaft, the surface of the roller overlaps with the lower side wall of the U-shaped mounting frame, a fixed plate is fixedly provided on the top of the screw sleeve, and the support frame is fixedly mounted on the top of the fixed plate.

[0008] Preferably, the arc moving component includes a mounting shell that is slidably arranged inside a connecting frame, a mounting shaft is fixedly arranged on the front and rear sides of the mounting shell, a limiting wheel is rotatably arranged on the surface of the mounting shaft, and the limiting wheel and the connecting frame are overlapped, a forward and reverse motor is fixedly arranged on the left side of the mounting shell, a rotating shaft is fixedly arranged on the output end of the forward and reverse motor, a worm sleeve is fixedly arranged on the surface of the rotating shaft, a worm wheel is meshed on the surface of the worm sleeve, a rotating shaft is fixedly arranged inside the worm wheel, the rotating shaft is rotatably arranged inside the mounting shell, a moving gear is fixedly arranged on the surface of the rotating shaft, a rack is meshed on the surface of the moving gear, and the rack is fixedly connected to the connecting frame.

[0009] Preferably, the pressure detection assembly includes a movable plate fixedly mounted on the output end of the hydraulic push rod, a connecting column is slidingly arranged inside the movable plate, a limiting plate is fixedly arranged on the top of the connecting column, the limiting plate and the movable plate are overlapped, the L-shaped plate is fixedly mounted on the bottom end of the connecting column, a pressure sensor is fixedly arranged on the bottom of the movable plate, and the detection end of the pressure sensor is in contact with the top of the L-shaped plate.

[0010] Preferably, the grinding assembly includes a connecting plate fixedly mounted on the rear side of the L-shaped plate, a driving motor fixedly provided on the rear side of the connecting plate, an active transmission wheel fixedly provided on the output end of the driving motor, a transmission belt meshed inside the active transmission wheel, a tension wheel overlapped on the outer surface of the transmission belt, the tension wheel rotatably arranged inside the L-shaped plate, a driven transmission wheel meshed inside the transmission belt, a mounting roller fixedly provided inside the driven transmission wheel, the mounting roller rotatably arranged inside the L-shaped plate, and a grinding belt meshed on the surface of the mounting roller.

[0011] Preferably, the number of the limiting wheels is several and they are symmetrically distributed, and the several limiting wheels are respectively arranged on the outer surface and the inner surface of the connecting frame.

[0012] Preferably, the number of the connecting columns and the number of the limiting plates are both two, and the two connecting columns and the two limiting plates are symmetrically distributed.

[0013] Preferably, the connecting frame and the rack are both arc-shaped structures, and are made of metal materials, and the connecting frame does not contact the rack.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The grinding equipment for the production and processing of UAV fixed wings drives the hydraulic push rod to move through the arc-shaped moving component. The hydraulic push rod drives the L-shaped plate to move through the pressure detection component, so that the L-shaped plate drives the grinding component to move, so that the grinding component moves to different grinding positions of the fixed wing. Moreover, the hydraulic push rod can make the grinding component contact with the arc-shaped surfaces at different positions of the fixed wing, so as to flexibly adjust the grinding position and angle. The leading edge, trailing edge, wingtip and some internal structures of the wing can be thoroughly polished to avoid the situation where grinding dead corners affect the grinding quality.

[0015] 2. The grinding equipment used for the production and processing of UAV fixed wings can control the pressure applied to the fixed wings during grinding through the pressure detection component, so that the grinding pressure applied to the fixed wings is controlled within the optimal range, avoiding the situation where the grinding pressure is too high or too low, thereby avoiding the situation where excessive pressure will cut off too much material and cause surface depressions and scratches, destroying its original flatness and smoothness, and making subsequent repairs difficult. It also avoids the situation where the pressure is too low to remove the coating on the surface of the material, resulting in the fixed wing surface being not smooth enough.

[0016] 3. The grinding equipment for the production and processing of UAV fixed wings can move the grinding components to different positions by moving the components back and forth, so that the grinding components can grind different positions of the same horizontal plane of the fixed wing. During the grinding process of the fixed wing, there is no need to move the fixed wing too much, and there is no need to move the grinding device, so the grinding speed of the fixed wing is faster and the time consumed by the fixed wing grinding is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a positive isometric drawing of the structure of the present invention; Figure 2 It is a schematic longitudinal cross-sectional view of the structure of the present invention; Figure 3 It is a schematic diagram of the local structure of the present invention; Figure 4 This is a schematic structural diagram of the pressure detection assembly of the present invention; Figure 5 This is a schematic diagram of the structure of the arc-shaped moving component of the present invention; Figure 6 This is a schematic diagram of the polishing assembly structure of the present invention; Figure 7 This is a rear view of the polishing component structure of the present invention.

[0018] In the figure: 1. U-shaped mounting frame; 2. servo motor; 3. screw; 4. screw sleeve; 5. fixed plate; 6. fixed shaft; 7. roller; 8. support frame; 9. connecting frame; 10. mounting housing; 11. mounting shaft; 12. limiting wheel; 13. forward and reverse motor; 14. rotating shaft; 15. worm sleeve; 16. worm gear; 17. rotating shaft; 18. moving gear; 19. rack; 20. hydraulic push rod; 21. moving plate; 22. connecting column; 23. limiting plate; 24. L-shaped plate; 25. pressure sensor; 26. connecting plate; 27. driving motor; 28. active transmission wheel; 29. ​​transmission belt; 30. tension wheel; 31. driven transmission wheel; 32. mounting roller; 33. grinding belt. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Reference Figure 1-7A grinding device for the production and processing of fixed-wing drones includes a U-shaped mounting frame 1. The U-shaped mounting frame 1 is internally provided with a forward and backward moving component that is convenient for adjusting according to the grinding position of the fixed wing. The U-shaped mounting frame 1 is internally provided with a support frame 8 through the forward and backward moving component. A connecting frame 9 is fixedly provided on the top of the support frame 8. The connecting frame 9 is internally provided with an arc-shaped moving component that is convenient for adjusting according to the grinding position of the fixed wing. A hydraulic push rod 20 is internally provided with the arc-shaped moving component. The output end of the hydraulic push rod 20 is provided with a pressure detection component that is convenient for controlling the grinding pressure. The output end of the hydraulic push rod 20 is provided with an L-shaped plate 24 through the pressure detection component. The pressure detection component includes a moving component fixedly installed at the output end of the hydraulic push rod 20 The plate 21 is provided with a connecting column 22 for sliding inside the movable plate 21, and a limiting plate 23 is fixedly provided on the top of the connecting column 22. The limiting plate 23 and the movable plate 21 are overlapped, and the L-shaped plate 24 is fixedly installed on the bottom end of the connecting column 22. A pressure sensor 25 is fixedly provided on the bottom of the movable plate 21. There are two connecting columns 22 and two limiting plates 23, and the two connecting columns 22 and the two limiting plates 23 are symmetrically distributed, so that the L-shaped plate 24 is installed more firmly, and the pressure applied by the L-shaped plate 24 to the pressure sensor 25 remains vertical, so that the pressure detected by the pressure sensor 25 is more accurate. The detection end of the pressure sensor 25 contacts the top of the L-shaped plate 24, and the grinding belt 33 is given to the L-shaped plate 24 through the mounting roller 32. 4 A reverse thrust causes the L-shaped plate 24 to push the detection end of the pressure sensor 25 to apply pressure. Since the force is mutual, the reverse thrust is the same as the pressure applied to the fixed wing by the grinding belt 33. Therefore, the pressure detected by the pressure sensor 25 is the grinding pressure applied to the fixed wing. When the pressure sensor 25 detects that the applied pressure reaches a preset value, the hydraulic push rod 20 stops, thereby controlling the grinding pressure applied to the fixed wing, avoiding the situation where the grinding pressure is too large or too small, thereby changing the grinding effect of the fixed wing. A grinding component is provided inside the L-shaped plate 24 for facilitating the grinding of the fixed wing. The grinding component includes a connecting plate 26 fixedly mounted on the rear side of the L-shaped plate 24, and a driving mechanism is fixedly provided on the rear side of the connecting plate 26. The motor 27 is fixedly provided with an active transmission wheel 28 at the output end of the driving motor 27. A transmission belt 29 is meshed inside the active transmission wheel 28. A tension wheel 30 is overlapped on the outer surface of the transmission belt 29. The tension wheel 30 is rotatably arranged inside the L-shaped plate 24. A driven transmission wheel 31 is meshed inside the transmission belt 29. A mounting roller 32 is fixedly provided inside the driven transmission wheel 31. The mounting roller 32 is rotatably arranged inside the L-shaped plate 24. A grinding belt 33 is meshed on the surface of the mounting roller 32. The driving motor 27 drives the mounting roller 32 to rotate through the active transmission wheel 28, the transmission belt 29 and the driven transmission wheel 31, so that the grinding belt 33 grinds the fixed wing, and the transmission belt 29 can maintain sufficient tension through the tension wheel 30.And make the transmission belt 29 and the active transmission wheel 28 and the driven transmission wheel 31 maintain a suitable transmission angle, avoid the situation that the transmission belt 29 cannot drive the driven transmission wheel 31 to rotate, the arc moving component includes a mounting shell 10 that is slidably provided inside the connecting frame 9, and the mounting shell 10 is fixedly provided with a mounting shaft 11 on both the front and rear sides. The surface of the mounting shaft 11 is rotatably provided with a limiting wheel 12, and the number of limiting wheels 12 is several and symmetrically distributed. The several limiting wheels 12 are respectively provided on the outer surface and the inner surface of the connecting frame 9, and the limiting wheels 12 are convenient for adjusting the mounting shell 10. The limiting function is used to avoid shaking during the movement of the mounting shell 10 and to avoid the shaking of the mounting shell 10 during the grinding process, which affects the grinding effect. The limiting wheel 12 is overlapped with the connecting frame 9. A forward and reverse motor 13 is fixedly provided on the left side of the mounting shell 10. A rotating shaft 14 is fixedly provided on the output end of the forward and reverse motor 13. A worm sleeve 15 is fixedly provided on the surface of the rotating shaft 14. A worm gear 16 is meshed with the surface of the worm sleeve 15. A rotating shaft 17 is fixedly provided inside the worm gear 16. The rotating shaft 17 is rotatably provided inside the mounting shell 10. The surface of the rotating shaft 17 is fixedly provided with a The movable gear 18 is provided with a gear rail 19 on the surface of the movable gear 18. The connecting frame 9 and the gear rail 19 are both arc-shaped structures. The connecting frame 9 and the gear rail 19 are made of metal material, which makes the connecting frame 9 and the gear rail 19 stronger and longer-lasting. The convex teeth of the gear rail 19 are not easily broken. The connecting frame 9 and the gear rail 19 do not contact each other. The gear rail 19 is fixedly connected to the connecting frame 9. The forward and reverse motor 13 drives the worm sleeve 15 to rotate through the rotating shaft 14, so that the worm wheel 16 rotates the movable gear 18 through the rotating shaft 17, so that the movable gear 1 8 rolls inside the rack 19, causing the rotating shaft 17 to drive the mounting housing 10 to move. The mounting housing 10, via the mounting shaft 11, drives the limiting wheel 12 to roll on the surface of the connecting frame 9, causing the hydraulic push rod 20 to move the mounting roller 32 via the moving plate 21 and the L-shaped plate 24. The mounting roller 32 then drives the grinding belt 33 to the grinding position, allowing different positions of the fixed wing to be polished. Moreover, the use of an arc-shaped movement trajectory can better fit the larger curvature areas such as the leading and trailing edges of the wing, which is conducive to ensuring the consistency and smoothness of the grinding and reducing grinding defects.

[0021] The cam 4 is screwed to the top of the cam 4 and the cam 4 is screwed to the bottom of the cam 4. The cam 4 is screwed to the top of the cam 4 and the cam 4 is screwed to the bottom of the cam 4. The cam 4 is screwed to the top of the cam 4 and the cam 4 is screwed to the bottom of the cam 4. The cam 4 is screwed to the top of the cam 4 and the cam 4 is screwed to the bottom of the cam 4.

[0022] When in use: the output end is driven by the hydraulic push rod 20 to drive the movable plate 21 to approach the fixed wing, and the movable plate 21 drives the connecting column 22 and the pressure sensor 25 to approach the fixed wing, so that the grinding belt 33 contacts the fixed wing, and the grinding belt 33 gives the L-shaped plate 24 a reverse thrust through the installation roller 32. When the pressure sensor 25 detects that the applied pressure reaches a preset value, the hydraulic push rod 20 stops, and the driving motor 27 drives the output end to drive the active transmission wheel 28 to rotate. The active transmission wheel 28 drives the driven transmission wheel 31 to rotate through the transmission belt 29, and drives the installation roller 32 to rotate through the driven transmission wheel 31, so that the installation roller 32 drives the grinding belt 33 to move, and the fixed wing is polished by the grinding belt 33. When it is necessary to polish different arc positions of the fixed wing, the output end is driven by the forward and reverse motor 13 to drive the rotating shaft 14 to rotate, and the rotating shaft 14 drives the worm sleeve 15 to rotate, so that the worm sleeve 15 drives the worm gear engaged with it. The wheel 16 rotates and drives the rotating shaft 17 to rotate through the worm gear 16, and drives the moving gear 18 to rotate through the rotating shaft 17, so that the moving gear 18 rolls inside the rack 19, so that the rotating shaft 17 drives the mounting shell 10 to move, and the mounting shell 10 drives the limiting wheel 12 to roll on the surface of the connecting frame 9 through the mounting shaft 11, and drives the hydraulic push rod 20 to move through the mounting shell 10, so that the hydraulic push rod 20 drives the mounting roller 32 to move through the moving plate 21 and the L-shaped plate 24, and drives the grinding belt 33 to the grinding position through the mounting roller 32. At this time, the pressure sensor 25 detects that the pressure becomes smaller, or the pressure sensor 25 does not detect a pressure change, so the hydraulic push rod 20 pushes the moving plate 21 to move, so that the grinding belt 33 contacts the fixed wing again. Since the rack 19 is an arc structure, the moving trajectory of the moving gear 18 inside the rack 19 is an arc, thereby grinding the arc surfaces at different positions of the fixed wing.

[0023] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0024] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A grinding device for the production and processing of fixed-wing UAVs, comprising a U-shaped mounting frame (1), characterized in that: The U-shaped mounting frame (1) is provided with a front-back moving assembly for facilitating adjustment according to the grinding position of the fixed wing, the U-shaped mounting frame (1) is provided with a support frame (8) through the front-back moving assembly, the top of the support frame (8) is fixedly provided with a connecting frame (9), the connecting frame (9) is provided with an arc-shaped moving assembly for facilitating adjustment according to the grinding position of the fixed wing, the connecting frame (9) is provided with a hydraulic push rod (20) through the arc-shaped moving assembly, the output end of the hydraulic push rod (20) is provided with a pressure detection assembly for facilitating control of the grinding pressure, the output end of the hydraulic push rod (20) is provided with an L-shaped plate (24) through the pressure detection assembly, and the L-shaped plate (24) is provided with a grinding assembly for facilitating grinding of the fixed wing.

2. The grinding equipment for the production and processing of UAV fixed wings according to claim 1 is characterized in that: The forward and backward moving assembly comprises a servo motor (2) fixedly mounted on the front side of the U-shaped mounting frame (1); a screw (3) is fixedly provided at the output end of the servo motor (2); a screw sleeve (4) is threadedly provided on the surface of the screw (3); a fixed shaft (6) is fixedly provided on both the left and right sides of the screw sleeve (4); a roller (7) is rotatably provided on the surface of the fixed shaft (6); the surface of the roller (7) overlaps the lower side wall of the U-shaped mounting frame (1); a fixed plate (5) is fixedly provided on the top of the screw sleeve (4); and the support frame (8) is fixedly mounted on the top of the fixed plate (5).

3. The grinding equipment for the production and processing of UAV fixed wings according to claim 1 is characterized in that: The arc moving component comprises a mounting shell (10) which is slidably arranged inside a connecting frame (9), a mounting shaft (11) is fixedly arranged on both the front and rear sides of the mounting shell (10), a limit wheel (12) is rotatably arranged on the surface of the mounting shaft (11), and the limit wheel (12) is overlapped with the connecting frame (9), a forward and reverse motor (13) is fixedly arranged on the left side of the mounting shell (10), a rotating shaft (14) is fixedly arranged on the output end of the forward and reverse motor (13), a worm sleeve (15) is fixedly arranged on the surface of the rotating shaft (14), a worm gear (16) is meshed with the surface of the worm sleeve (15), a rotating shaft (17) is fixedly arranged inside the worm gear (16), the rotating shaft (17) is rotatably arranged inside the mounting shell (10), a moving gear (18) is fixedly arranged on the surface of the rotating shaft (17), a rack (19) is meshed with the surface of the moving gear (18), and the rack (19) is fixedly connected to the connecting frame (9).

4. The grinding equipment for the production and processing of UAV fixed wings according to claim 1 is characterized in that: The pressure detection assembly comprises a movable plate (21) fixedly mounted on the output end of the hydraulic push rod (20), a connecting column (22) being slidably arranged inside the movable plate (21), a limit plate (23) being fixedly arranged on the top of the connecting column (22), the limit plate (23) and the movable plate (21) being overlapped, the L-shaped plate (24) being fixedly mounted on the bottom end of the connecting column (22), a pressure sensor (25) being fixedly arranged on the bottom of the movable plate (21), and a detection end of the pressure sensor (25) being in contact with the top of the L-shaped plate (24).

5. The grinding equipment for the production and processing of UAV fixed wings according to claim 1 is characterized in that: The grinding assembly comprises a connecting plate (26) fixedly mounted on the rear side of the L-shaped plate (24), a driving motor (27) fixedly arranged on the rear side of the connecting plate (26), an active transmission wheel (28) fixedly arranged on the output end of the driving motor (27), a transmission belt (29) meshedly arranged inside the active transmission wheel (28), a tension wheel (30) overlapped on the outer surface of the transmission belt (29), the tension wheel (30) rotatably arranged inside the L-shaped plate (24), a driven transmission wheel (31) meshedly arranged inside the transmission belt (29), a mounting roller (32) fixedly arranged inside the driven transmission wheel (31), the mounting roller (32) rotatably arranged inside the L-shaped plate (24), and a grinding belt (33) meshedly arranged on the surface of the mounting roller (32).

6. The grinding equipment for producing and processing UAV fixed wings according to claim 3 is characterized in that: The number of the limiting wheels (12) is several and they are symmetrically distributed, and the several limiting wheels (12) are respectively arranged on the outer surface and the inner surface of the connecting frame (9).

7. The grinding equipment for producing and processing UAV fixed wings according to claim 4, characterized in that: The number of the connecting columns (22) and the limiting plates (23) is two, and the two connecting columns (22) and the two limiting plates (23) are symmetrically distributed.

8. The grinding equipment for producing and processing UAV fixed wings according to claim 3 is characterized in that: The connecting frame (9) and the rack (19) are both arc-shaped structures, and are made of metal. The connecting frame (9) and the rack (19) do not contact each other.

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