An unmanned aerial vehicle blade automatic polishing device

Abstract

The application relates to the field of polishing equipment and discloses unmanned aerial vehicle blade automatic polishing equipment, which comprises an upper rack, a first horizontal plate is installed at the top of the upper rack, an extension piece is installed on the first horizontal plate, an upper die clamp is installed at the bottom of the extension piece, a second horizontal plate is installed at the bottom of the upper rack, a rotating platform is installed on the second horizontal plate, a lower die clamp is installed on the rotating platform, a longitudinal guide rail is installed on the second horizontal plate, a sliding seat is installed on the longitudinal guide rail, a polishing mechanism is installed on the sliding seat, dust suction holes are arranged on the top surface and the peripheral side of the rotating platform, a negative pressure filtering structure is installed at the bottom of the second horizontal plate, and the dust suction holes are communicated with the negative pressure filtering structure. In the application, the upper die clamp and the lower die clamp are driven to move synchronously by the rotating platform, the blade is driven to rotate and is positioned, the positioning of the polishing mechanism is matched, the polishing of the blade can be realized in all directions, the blade does not need to be manually positioned, and the blade polishing efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of grinding equipment technology, specifically to an automated grinding equipment for drone propellers. Background Technology

[0002] After the drone propellers are molded, burrs will appear on the outer contour. Workers need to use sandpaper or a grinder to gradually remove the burrs along the outer edge of the propeller. However, manual grinding is inefficient, difficult to guarantee quality, and can easily damage the connection between the product body and the burrs, leaving tooth marks and gaps, which affect the product's appearance and flight performance.

[0003] In response, existing technology utilizes electric grinding equipment to automate the grinding of blades. First, a clamping mechanism drives the upper and lower clamps to fix the blades. The grinding components on the periphery continuously adjust their positions to grind the edge of one side of the blade. After grinding, the position of the blade in the clamp is adjusted so that the other side of the blade faces the grinding components, and then the edge of the other side is ground.

[0004] In existing technologies, the blade position needs to be adjusted multiple times during the blade grinding process, resulting in low grinding efficiency. In addition, to prevent grinding dust from scattering everywhere and getting stuck on the mechanical structure, a dust suction hole needs to be set on the rotating platform to suck out the grinding dust. However, this dust suction method can only pick up some of the dust that has just been ground, and cannot handle the dust that has fallen on the platform, leading to dust accumulation inside the instrument and affecting its operation. Summary of the Invention

[0005] To address this, the present invention provides an automated blade grinding device for unmanned aerial vehicles (UAVs), which effectively solves the technical problems of low blade grinding efficiency and inability to handle dust falling on the platform in the existing technology, resulting in dust accumulation inside the device and affecting its operation.

[0006] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution: an automated grinding equipment for drone propellers, including an upper frame, a first horizontal plate installed on the top of the upper frame, a telescopic component installed on the first horizontal plate, and an upper mold clamp installed at the bottom of the telescopic component;

[0007] A second horizontal plate is installed at the bottom of the upper frame, and a rotating platform is installed on the second horizontal plate. A lower mold clamp is installed on the rotating platform directly opposite the position of the upper mold clamp. The upper mold clamp and the lower mold clamp form a cavity for docking the blade.

[0008] The telescopic component can extend and retract to lower the upper mold clamp, so that the upper mold clamp and the lower mold clamp can hold and position the blade.

[0009] The second horizontal plate is equipped with a longitudinal guide rail, a slide is mounted on the longitudinal guide rail, and a grinding mechanism is mounted on the slide. The grinding mechanism is directly opposite the side of the upper mold fixture and the lower mold fixture. The slide slides on the longitudinal guide rail, so that the grinding mechanism abuts against the edge of the blade to grind the edge of the blade.

[0010] The upper mold clamp can rotate around the telescopic member, and the rotating platform can rotate on its own axis to synchronously drive the upper mold clamp and the lower mold clamp to rotate, so that the edges of different positions of the blade are sequentially aligned with the grinding mechanism.

[0011] Dust suction holes are provided on the top surface and the periphery of the rotating platform. A negative pressure filter structure is installed at the bottom of the second horizontal plate. The dust suction holes are connected to the negative pressure filter structure, and the negative pressure filter structure extracts the dust generated during the blade grinding process through the dust suction holes.

[0012] Furthermore, the edge of the blade extends beyond the edges of the upper mold fixture and the lower mold fixture, and the width of the extended portion is equal everywhere;

[0013] The upper and lower end faces of the blade respectively engage with the upper mold fixture and the lower mold fixture.

[0014] Furthermore, the telescopic component includes a first cylinder mounted on the first horizontal plate and a telescopic rod connected to the output end of the first cylinder;

[0015] The bottom of the telescopic rod is movably connected to the upper mold clamp, and the upper mold clamp can rotate around the telescopic rod;

[0016] A connecting plate is rotatably mounted on the cylinder port of the first cylinder, the telescopic rod passes through the connecting plate, and sliding columns are slidably mounted on both ends of the connecting plate in the vertical direction, with the bottom end of the sliding column connected to the upper mold fixture;

[0017] A limiting ring seat is installed at the bottom of the first horizontal plate, and the sliding column is directly opposite the limiting ring seat and can be embedded in the limiting ring seat.

[0018] Furthermore, the rotation center axis of the rotating platform coincides with the telescopic rod.

[0019] Furthermore, a lower frame is installed at the bottom of the upper frame, the bottom end of the rotating platform extends into the lower frame, and a rotating drive assembly is installed inside the lower frame;

[0020] The rotary drive assembly includes a first drive motor installed in the lower frame and a drive wheel connected to the drive end of the first drive motor;

[0021] A transmission ring is installed on the bottom periphery of the rotating platform, and the transmission ring is connected to the drive wheel via a belt drive.

[0022] The first drive motor drives the drive wheel to rotate, and drives the rotating platform to rotate via the belt.

[0023] Furthermore, the rotating platform includes a top plate, a middle column, and a base plate connected sequentially from top to bottom;

[0024] A plurality of movable plates are rotatably mounted on the outer periphery of the top plate. A rotating groove corresponding to the movable plate is opened on the outer periphery of the top plate. The end of the movable plate is rotatably mounted in the rotating groove through a movable shaft. A torsion spring is provided between the movable shaft and the rotating groove.

[0025] The dust extraction hole is located on the top plate and the movable plate.

[0026] Furthermore, a dust collection chamber is movably installed at the bottom of the chassis, and the dust collection chamber does not rotate with the rotating platform;

[0027] A first suction pipe is installed at the bottom of the top plate, and a second suction pipe is installed on the inner side of the movable plate. Both the first and second suction pipes are far away from the central column, and the first and second suction pipes are connected to the suction holes one by one.

[0028] The ends of the first and second suction pipes penetrate the chassis and connect to the suction chamber.

[0029] Furthermore, a mounting ring seat is provided around the periphery of the movable plate, and the end of the movable plate abuts against the inner side of the mounting ring seat;

[0030] The central column and the chassis are provided with a drive cavity, and each movable plate is connected to a cable on its inner side. The cable passes through the central column and extends into the drive cavity.

[0031] A tension cylinder is installed inside the drive chamber. The drive end of the tension cylinder is connected to the end of the cable. By driving the tension cylinder, the cable is moved to pull the movable plate to rotate and adjust the suction direction of the suction holes on it.

[0032] Furthermore, a first hydraulic cylinder is installed at the end of the slide block, and the drive end of the first hydraulic cylinder is connected to the slide block to drive the slide block to move on the longitudinal slide rail;

[0033] A vertical slide plate is slidably mounted on the slide block. A second hydraulic cylinder is mounted at the end of the vertical slide plate. The drive end of the second hydraulic cylinder is connected to the vertical slide plate to drive the vertical slide plate to move vertically on the slide block.

[0034] A horizontal plate is mounted on the vertical sliding plate, and the grinding structure includes a grinding wheel mounted on the horizontal plate;

[0035] The grinding wheel is rotatably mounted on the horizontal plate via a rotating shaft. A second drive motor is mounted on the horizontal plate. The drive end of the first drive motor is connected to the rotating shaft via a transmission belt. The second drive motor drives the rotating shaft and the grinding wheel to rotate via the transmission belt.

[0036] Furthermore, a second cylinder is provided on the second horizontal plate, and the output end of the second cylinder is connected to a lifting platform, on which a U-shaped clamp is installed;

[0037] The internal width of the U-shaped clamp is the same as the width of the blade directly opposite the position of the U-shaped clamp.

[0038] Compared with the prior art, the present invention has the following advantages:

[0039] In this invention, the upper and lower mold clamps are driven to move synchronously by the rotating platform, which drives the blade to rotate and adjust. Combined with the adjustment of the grinding mechanism, the blade's side edges can be ground in all directions without the need for manual adjustment, thus improving the blade grinding efficiency.

[0040] Furthermore, dust suction holes are provided on the top and sides of the rotating platform, increasing the dust suction range. The dust suction holes rotate with the rotating platform, and their positions are continuously adjusted during the continuous movement, allowing for all-round, three-dimensional dust suction of falling dust, thus improving the dust suction effect and preventing dust accumulation. Attached Figure Description

[0041] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0042] Figure 1 This is a schematic diagram of the structure of an automated grinding device for UAV propellers provided in an embodiment of the present invention;

[0043] Figure 2 This is a structural schematic diagram from another perspective of an automated grinding device for drone propellers provided in an embodiment of the present invention;

[0044] Figure 3 This is a structural schematic diagram from another perspective of an automated grinding device for drone propellers provided in an embodiment of the present invention;

[0045] Figure 4 A three-dimensional sectional view of a certain section of an automated grinding device for UAV propellers provided in an embodiment of the present invention;

[0046] Figure 5 for Figure 4 A structural diagram from another perspective;

[0047] Figure 6 for Figure 4 A magnified structural diagram of A in the middle;

[0048] Figure 7 for Figure 5 A magnified structural diagram of B in the diagram;

[0049] Figure 8 This is a schematic diagram of the grinding mechanism in an embodiment of the present invention;

[0050] Figure 9 This is a schematic diagram of the rotating platform in the second embodiment of the present invention;

[0051] Figure 10 for Figure 9 A top-view structural diagram;

[0052] Figure 11 for Figure 10 A three-dimensional sectional view along the AA direction.

[0053] The labels in the diagram represent the following:

[0054] 1. Upper frame; 2. Lower frame; 3. First horizontal plate; 4. Second horizontal plate; 5. Telescopic component; 6. Upper mold clamp; 7. Rotary platform; 8. Lower mold clamp; 9. Longitudinal guide rail; 10. Slide; 11. Grinding mechanism; 12. Dust suction hole; 13. Rotary drive assembly; 14. Dust suction chamber; 15. First dust suction pipe; 16. Second dust suction pipe; 17. Mounting ring seat; 18. Drive cavity; 19. Cable; 21. Vertical sliding plate; 23. Horizontal plate; 24. Second cylinder; 25. Lifting platform; 26. U-shaped clamp;

[0055] 51. First cylinder; 52. Telescopic rod; 53. Connecting plate; 54. Sliding column; 55. Limiting ring seat;

[0056] 71. Top plate; 72. Middle column; 73. Base plate; 74. Movable plate; 75. Rotary groove;

[0057] 111. Grinding wheel; 112. Shaft; 113. Second drive motor; 114. Transmission belt;

[0058] 131. First drive motor; 132. Drive wheel; 133. Belt; 134. Transmission ring. Detailed Implementation

[0059] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0060] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the present invention provides an automated grinding device for UAV propellers, which adopts a frame structure and is divided into an upper frame 1 and a lower frame 2, with the upper frame 1 mounted on the lower frame 2.

[0061] A first horizontal plate 3 is installed on the top of the upper frame 1, a telescopic component 5 is installed on the first horizontal plate 3, and an upper mold clamp 6 is installed at the bottom of the telescopic component 5.

[0062] A second horizontal plate 4 is installed at the bottom of the upper frame 1. Several columns are installed between the first horizontal plate 3 and the second horizontal plate 4. A rotating platform 7 is installed on the second horizontal plate 4. A lower mold clamp 8 is installed on the rotating platform 7, directly opposite the upper mold clamp 6. The upper mold clamp 6 and the lower mold clamp 8 form a cavity for docking the blade. The clamping between the upper mold clamp 6 and the lower mold clamp 8 can fix the blade, so that the blade is in a relatively stationary state relative to the upper mold clamp 6 and the lower mold clamp 8.

[0063] The telescopic component 5 can extend and retract to drive the upper mold clamp 6 to descend, so that the upper mold clamp 6 and the lower mold clamp 8 can clamp and position the propeller.

[0064] Among them, a longitudinal guide rail 9 is installed on the second horizontal plate 4, a slide 10 is installed on the longitudinal guide rail 9, and a grinding mechanism 11 is installed on the slide 10. The grinding mechanism 11 is directly opposite the side of the upper mold clamp 6 and the lower mold clamp 8. The slide 10 slides on the longitudinal guide rail 9, so that the grinding mechanism 11 abuts against the edge of the blade to grind the edge of the blade.

[0065] The upper mold clamp 6 can rotate around the telescopic part 5, and the rotating platform 7 can rotate on its own axis to synchronously drive the upper mold clamp 6 and the lower mold clamp 8 to rotate, so that the edges of different positions of the blade are aligned with the grinding mechanism 11 in sequence.

[0066] Dust suction holes 12 are provided on the top surface and the periphery of the rotating platform 7. A negative pressure filter structure is installed at the bottom of the second horizontal plate 4. The dust suction holes 12 are connected to the negative pressure filter structure, and the negative pressure filter structure extracts the dust generated during the blade grinding process through the dust suction holes 12.

[0067] In this invention, the rotating platform 7 drives the upper mold clamp 6 and the lower mold clamp 8 to move synchronously, thereby rotating and adjusting the blade. Combined with the adjustment of the grinding mechanism 11, the blade can be ground in all directions on the side edges without the need for manual adjustment, thus improving the blade grinding efficiency.

[0068] In addition, dust suction holes 12 are provided on the top surface and the periphery of the rotating platform 7, which increases the dust suction range. The dust suction holes 12 rotate with the rotating platform 7, and the position of the dust suction holes 12 is continuously adjusted during the continuous movement, so as to perform all-round three-dimensional dust suction on the falling dust, thereby improving the dust suction effect and avoiding dust accumulation.

[0069] The lower frame 2 is made of welded galvanized square tubes. The second horizontal plate 4 is installed between the upper frame 1 and the lower frame 2. The shell of the second horizontal plate 4 is made of No. 45 carbon steel. The cabinets around the lower frame 2 can be made of 1-2mm thick Q235 cold-rolled steel. One or more cabinet doors can be designed as needed. The cabinet doors can be opened and used as electrical cabinets or storage cabinets. The electrical cabinet shell houses the CK control panel and controller and other complete electrical circuit components.

[0070] In addition, the lower frame 2 can house components such as the servo motor of the CNC system, the motor drive, the triplet of the CNC system drive and control cylinder, air pipes, and cooling fans in appropriate locations.

[0071] Four M16 adjustable feet are installed at the bottom of the lower frame 2 to adjust the level of the tooling.

[0072] The outer frame of the upper frame 1 is made of 45 aluminum profiles that have been anodized and spliced ​​together and then fixed by welding or bolts. The upper left corner of the front of the upper frame 1 is hollowed out and a square frame is set up to install a teaching pendant and a teaching screen as a teaching interface for adjusting the working parameters of the entire grinding process.

[0073] Sliding windows can be installed on the cabinets around the upper rack 1 for observing the working status inside the tooling and for keeping out dust.

[0074] The upper mold fixture 6 and the lower mold fixture 8 are made of 6063 aluminum alloy and the surface is treated with hard anodizing. The cavity of the upper and lower mold fixture 8 and the surface of the blade are contoured structures.

[0075] To avoid collisions between the grinding mechanism 11 and the upper mold clamp 6 and the lower mold clamp 8, the blade edge should extend beyond the edges of the upper mold clamp 6 and the lower mold clamp 8, and the width of the extended portion should be equal everywhere. Generally, the blade edge extends about 2mm beyond the edges of the upper mold clamp 6 and the lower mold clamp 8.

[0076] The upper and lower end faces of the blade respectively fit into the upper mold clamp 6 and the lower mold clamp 8 to ensure the fixing effect of the upper mold clamp 6 and the lower mold clamp 8 on the blade.

[0077] In this invention, the telescopic component 5 drives the upper mold clamp 6 to rise and fall, thereby clamping and fixing the blade. Figure 4 and Figure 6 As shown, the telescopic component 5 includes a first cylinder 51 mounted on the first horizontal plate 3 and a telescopic rod 52 connected to the output end of the first cylinder 51. The bottom of the telescopic rod 52 is movably connected to the upper mold clamp 6, and the upper mold clamp 6 can rotate around the telescopic rod 52.

[0078] The first cylinder 51 has a connecting plate 53 rotatably mounted at the cylinder port, and the telescopic rod 52 passes through the connecting plate 53. The two ends of the connecting plate 53 are slidably mounted with sliding columns 54 in the vertical direction, and the bottom end of the sliding column 54 is connected to the upper mold fixture 6.

[0079] The bottom of the first horizontal plate 3 is equipped with a limiting ring seat 55, and the sliding column 54 is directly opposite the limiting ring seat 55 and can be embedded in the limiting ring seat 55.

[0080] Drill holes at appropriate positions on the first horizontal plate 3 to install two 400-800KG first cylinders 51.

[0081] In the above embodiments, the limiting ring seat 55 serves to limit the vertical movement of the sliding column 54. In the initial state, the upper mold clamp 6 is far away from the lower mold clamp 8, and the sliding column 54 is placed inside the limiting ring seat 55 and cannot rotate around the telescopic rod 52. After the first cylinder 51 drives the upper mold clamp 6 to clamp the blade on the lower mold clamp 8, the sliding column 54 completely disengages from the limiting ring seat 55. At this time, the sliding column 54, the upper mold clamp 6, the blade, and the lower mold clamp 8 are in a relatively static state, and they also maintain the above relatively static state during subsequent rotation.

[0082] The rotation center axis of the rotating platform 7 coincides with the telescopic rod 52. When the rotating platform 7 rotates, the upper mold clamp 6, the paddle, the lower mold clamp 8, the sliding column 54, and the connecting plate 53 also rotate synchronously with the telescopic rod 52 as the center axis. During this process, the telescopic rod 52 does not rotate, and the movable connection between the telescopic rod 52 and the rotating platform 7 moves relative to each other. The connecting plate 53 also moves relative to the cylinder port of the first cylinder 51.

[0083] The bottom end of the rotating platform 7 extends into the lower frame 2, where a rotating drive assembly 13 is installed. The rotating drive assembly 13 drives the rotating platform 7 to rotate. The rotating platform 7 adopts the following preferred embodiment, such as... Figure 5 and Figure 7 As shown, the rotary drive assembly 13 includes a first drive motor 131 installed in the lower frame 2 and a drive wheel 132 connected to the drive end of the first drive motor 131.

[0084] A transmission ring 134 is installed on the bottom periphery of the rotating platform 7. The transmission ring 134 is connected to the drive wheel 132 via a belt 133.

[0085] The first drive motor 131 drives the drive wheel 132 to rotate, and drives the transmission ring 134 to rotate through the belt 133, and the rotating platform 7 rotates synchronously.

[0086] To address the issue that dust generated during blade grinding may not be completely sucked out and may remain within the upper frame 1, this invention employs a three-dimensional, multi-directional arrangement of the dust suction holes 12. The corresponding rotating platform 7 specifically adopts the following two embodiments:

[0087] First embodiment:

[0088] The rotating platform 7 is an integrated structure with dust suction holes 12 formed on its top and sides. The negative pressure filtration structure uses the dust suction holes 12 to suction the dust that falls on the top of the dust suction holes 12 and the sides directly opposite the dust suction holes 12, thus expanding the dust suction range.

[0089] Second embodiment:

[0090] Rotating platform 7 has a modular structure, specifically, as follows: Figure 9 , Figure 10 and Figure 11 As shown, the rotating platform 7 includes a top plate 71, a middle column 72, and a bottom plate 73 connected sequentially from top to bottom. The outer diameter of the middle column 72 is smaller than the outer diameters of the top plate 71 and the bottom plate 73.

[0091] Several movable plates 74 are rotatably mounted on the outer periphery of the top plate 71. Rotary grooves 75 corresponding to the movable plates 74 are opened on the outer periphery of the top plate 71. The ends of the movable plates 74 are rotatably mounted in the rotary grooves 75 through movable shafts. A torsion spring is provided between the movable shaft and the rotary grooves 75. Dust suction holes 12 are provided on the top plate 71 and the movable plates 74.

[0092] The movable plate 74 itself is a movable plate structure. During the rotation of the movable plate 74 around the movable axis, the angle between the movable plate 74 and the top plate 71 can be adjusted, thereby adjusting the facing direction of the dust suction hole 12.

[0093] To further facilitate the dust collection process, a dust collection chamber 14 is movably installed at the bottom of the chassis 73. The dust collection chamber 14 does not rotate with the rotating platform 7.

[0094] A first suction pipe 15 is installed at the bottom of the top plate 71, and a second suction pipe 16 is installed on the inside of the movable plate 74. Both the first suction pipe 15 and the second suction pipe 16 are far away from the central column 72, and the first suction pipe 15 and the second suction pipe 16 are connected to the suction hole 12 one by one.

[0095] The ends of the first suction pipe 15 and the second suction pipe 16 penetrate the chassis 73 and connect to the suction chamber 14.

[0096] While the rotating platform 7 is rotating, the dust collection chamber 14 remains stationary.

[0097] Dust from the direction directly opposite the suction port 12 can enter the suction chamber 14 through the first suction pipe 15 and the second suction pipe 16. Under the negative pressure drive of the negative pressure filter structure, the dust in the suction chamber 14 is then drawn into the negative pressure filter structure.

[0098] Negative pressure filtration structures can include negative pressure fans, filter screens, and other components.

[0099] To adjust the tilt angle of the movable plate 74, the present invention is designed as follows: a mounting ring seat 17 is provided around the movable plate 74, and the end of the movable plate 74 abuts against the inner side of the mounting ring seat 17.

[0100] A drive chamber 18 is provided inside the central column 72 and the chassis 73. Each movable plate 74 is connected to a cable 19 on its inner side. The cable 19 passes through the central column 72 and extends into the drive chamber 18.

[0101] A tension cylinder is installed inside the drive chamber 18. The drive end of the tension cylinder is connected to the end of the cable 19. By driving the tension cylinder, the cable 19 is moved to pull the movable plate 74 to rotate and adjust the suction direction of the suction hole 12 on it.

[0102] The mounting ring seat 17 restricts the initial state of the movable plate 74. Assuming that the inner wall of the mounting ring seat 17 is directly aligned with and fits the movable plate 74 in a vertical state, then the initial state of the movable plate 74 is a vertical state. During the adjustment process, the movable plate 74 is pulled towards the central column 72 so that the direction facing the dust suction hole 12 gradually approaches the surface of the second horizontal plate 4.

[0103] Assuming the mounting ring 17 is far from the movable plate 74, the initial state of the movable plate 74 is tilted. At this time, the direction of the suction hole 12 is tilted upward, which can absorb dust in that direction. During the adjustment process, the movable plate 74 is pulled towards the central column 72, so that the direction of the suction hole 12 gradually becomes horizontal and close to the surface of the second horizontal plate 4.

[0104] Therefore, the farther the mounting ring seat 17 is from the movable plate 74, the larger the adjustable suction range of the suction hole 12 on the movable plate 74. However, it should be noted that the movable plate 74 should be pressed against the inner wall of the mounting ring seat 17 under the action of the torsion spring in the initial state. In addition to limiting the movable plate 74, the mounting ring seat 17 can also reduce dust from entering the rotating platform 7.

[0105] During the movement of the movable plate 74, the second suction pipe 16 will follow the movement. The second suction pipe 16 should be a flexible hose. During the movement of the second suction pipe 16 inward with the movable plate 74, the first suction pipe 15 may obstruct the movement of the second suction pipe 16. Therefore, the first suction pipe 15 can be set at a position away from the movement path of the second suction pipe 16.

[0106] Since the outer edge of the blade is irregular, a first hydraulic cylinder is installed at the end of the slide block 10. The drive end of the first hydraulic cylinder is connected to the slide block 10 to drive the slide block 10 to move on the longitudinal slide rail.

[0107] A vertical slide plate 21 is slidably mounted on the slide block 10. A second hydraulic cylinder is mounted at the end of the vertical slide plate 21. The drive end of the second hydraulic cylinder is connected to the vertical slide plate 21 to drive the vertical slide plate 21 to move vertically on the slide block 10.

[0108] The operation of the first and second hydraulic cylinders can drive the grinding structure to adjust its position in the horizontal and vertical directions. This adjustment in both directions ensures that the grinding structure is fully aligned with the outer edge of the blade for grinding.

[0109] like Figure 8 As shown, a horizontal plate 23 is installed on the vertical slide plate 21, and the grinding structure includes a grinding wheel 111 installed on the horizontal plate 23;

[0110] The grinding wheel 111 is rotatably mounted on the horizontal plate 23 via the rotating shaft 112. The second drive motor 113 is mounted on the horizontal plate 23. The drive end of the first drive motor 131 is connected to the rotating shaft 112 via the transmission belt 114. The second drive motor 113 drives the rotating shaft 112 and the grinding wheel 111 to rotate via the transmission belt 114.

[0111] Among them, the grinding wheel 111 is made of diamond grinding wheel. As the main grinding wear material, the higher the particle size of the grinding wheel, the lower its surface roughness.

[0112] Before the upper mold clamp 6, lower mold clamp 8, and propeller rotate, the upper mold clamp 6, lower mold clamp 8, and propeller need to be aligned. To achieve this alignment, the present invention adopts the following preferred embodiments, such as... Figure 7 As shown, a second cylinder 24 is provided on the second horizontal plate 4, and the output end of the second cylinder 24 is connected to a lifting platform 25. A U-shaped clamp 26 is installed on the lifting platform 25.

[0113] The internal width of the U-shaped clamp 26 is the same as the width of the blade directly opposite the position of the U-shaped clamp 26.

[0114] Driven by the second cylinder 24, the U-shaped clamp 26 rises to a position outside the lower mold clamp 8. The U-shaped clamp 26 aligns the blade and adjusts its position on the upper mold clamp 6 and lower mold clamp 8 to ensure the subsequent alignment and clamping effect of the upper mold clamp 6 and lower mold clamp 8 on the blade.

[0115] In summary, the main implementation process of this invention is as follows:

[0116] Driven by the second cylinder 24, the U-shaped clamp 26 rises to a position outside the lower mold clamp 8, aligning and placing the blade on the lower mold clamp 8, and the U-shaped clamp 26 positions the blade.

[0117] The first cylinder 51 drives the upper mold clamp 6 to move down and clamp the blade on the lower mold clamp 8, thus achieving complete positioning of the blade.

[0118] The first drive motor 131 drives the drive wheel 132 to rotate, and drives the transmission ring 134 to rotate through the belt 133. The rotating platform 7 rotates synchronously, so that the edges of different positions of the blade are aligned with the grinding wheel 111 in turn.

[0119] At the same time, for different edges of the blade, the position of the grinding wheel 111 relative to the blade edge is adjusted by the first hydraulic cylinder and the second hydraulic cylinder to achieve fine grinding of different edges of the blade;

[0120] Simultaneously, the negative pressure filtration structure is used to suck out the dust generated during the blade grinding process through the suction hole 12 and the suction chamber 14;

[0121] If dust falls on the second horizontal plate 4 or other locations, the pull cylinder is periodically controlled to drive the cable 19 to rotate, thereby pulling the movable plate 74 to rotate and continuously adjust the suction direction of the suction hole 12 on it. This achieves more comprehensive dust suction from the suction hole 12 during the blade grinding process.

[0122] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. An unmanned aerial vehicle blade automated polishing apparatus, characterized by, Including upper rack (1), first horizontal plate (3) is installed at the top of the upper rack (1), telescopic piece (5) is installed on the first horizontal plate (3), upper die clamp (6) is installed at the bottom of the telescopic piece (5); Second horizontal plate (4) is installed at the bottom of the upper rack (1), rotary platform (7) is installed on the second horizontal plate (4), lower die clamp (8) is installed on the rotary platform (7) and is opposite to the position of the upper die clamp (6), the upper die clamp (6) and the lower die clamp (8) form the cavity of the docking paddle; The telescopic piece (5) can be telescopic to drive the upper die clamp (6) to descend, so that the upper die clamp (6) and the lower die clamp (8) are clamped and positioned to the paddle; Wherein, the second horizontal plate (4) is installed with longitudinal guide rail (9), the slide (10) is installed on the longitudinal guide rail (9), the polishing mechanism (11) is installed on the slide (10), the polishing mechanism (11) is opposite to the side of the upper die clamp (6) and the lower die clamp (8), the slide (10) slides on the longitudinal guide rail (9), so that the polishing mechanism (11) is abutted on the edge of the paddle to polish the edge of the paddle; The upper die clamp (6) can rotate around the telescopic piece (5), the rotary platform (7) can rotate to synchronously drive the upper die clamp (6) and the lower die clamp (8) to rotate, so that the edges of the paddle at different positions are sequentially opposite to the polishing mechanism (11); The rotary platform (7) is provided with dust suction holes (12) on the top surface and the peripheral side, the second horizontal plate (4) is provided with a negative pressure filtering structure at the bottom, the dust suction holes (12) are communicated with the negative pressure filtering structure, and the negative pressure filtering structure extracts dust generated in the paddle polishing process through the dust suction holes (12).

2. The unmanned aerial vehicle paddle automatic polishing equipment according to claim 1, wherein, The edge part of the paddle exceeds the edge position of the upper die clamp (6) and the lower die clamp (8), and the width of the exceeding part is equal everywhere; The upper and lower end faces of the paddle are respectively fitted with the upper die clamp (6) and the lower die clamp (8).

3. The unmanned aerial vehicle paddle automatic polishing equipment according to claim 1, wherein, The telescopic piece (5) comprises a first air cylinder (51) installed on the first horizontal plate (3) and a telescopic rod (52) connected to the output end of the first air cylinder (51); The bottom of the telescopic rod (52) is movably connected with the upper die clamp (6), and the upper die clamp (6) can rotate around the telescopic rod (52); The first air cylinder (51) is rotatably installed with a connecting plate (53), the telescopic rod (52) penetrates through the connecting plate (53), the connecting plate (53) is slidably installed with a slide column (54) at both ends in the vertical direction, and the bottom end of the slide column (54) is connected with the upper die clamp (6); The bottom of the first horizontal plate (3) is installed with a limiting ring seat (55), the slide column (54) is opposite to the limiting ring seat (55) and can be embedded into the limiting ring seat (55).

4. The unmanned aerial vehicle blade automatic polishing equipment according to claim 3, characterized in that the rotation center axis of the rotating platform (7) coincides with the telescopic rod (52).

5. The unmanned aerial vehicle blade automatic polishing equipment according to claim 1, characterized in that a lower rack (2) is installed at the bottom of the upper rack (1), the bottom end of the rotating platform (7) extends into the lower rack (2), and a rotating drive assembly (13) is installed in the lower rack (2). The rotating drive assembly (13) comprises a first drive motor (131) installed in the lower rack (2) and a drive wheel (132) connected to the drive end of the first drive motor (131). The rotating platform (7) is peripherally installed with a transmission ring (134), and the transmission ring (134) is in transmission connection with the drive wheel (132) through a belt (133). The first drive motor (131) drives the drive wheel (132) to rotate and drives the rotating platform (7) to rotate through the belt (133).

6. The unmanned aerial vehicle blade automatic polishing equipment according to claim 1, characterized in that the rotating platform (7) comprises a top disc (71), a middle column (72) and a bottom disc (73) connected in sequence from top to bottom. The top disc (71) is peripherally rotatably installed with a plurality of movable plates (74), and the top disc (71) is peripherally provided with a plurality of rotating grooves (75) corresponding to the movable plates (74), the movable plates (74) are rotatably installed at the end portions thereof in the rotating grooves (75) through movable shafts, and torsional springs are arranged between the movable shafts and the rotating grooves (75). The dust suction holes (12) are arranged on the top disc (71) and the movable plates (74).

7. The unmanned aerial vehicle blade automatic polishing equipment according to claim 6, characterized in that a dust suction cabin (14) is movably installed at the bottom of the bottom disc (73), and the dust suction cabin (14) does not rotate with the rotating platform (7). The top disc (71) is installed with a first dust suction pipe (15), the movable plates (74) are installed with second dust suction pipes (16) on the inner sides thereof, the first dust suction pipe (15) and the second dust suction pipes (16) are away from the middle column (72), the first dust suction pipe (15) and the second dust suction pipes (16) are in one-to-one correspondence with the dust suction holes (12) and are in communication therewith, and the end portions of the first dust suction pipe (15) and the second dust suction pipes (16) penetrate the bottom disc (73) and are in communication with the dust suction cabin (14).

8. The unmanned aerial vehicle blade automatic polishing equipment according to claim 7, characterized in that the movable plates (74) are peripherally provided with mounting ring seats (17), and the plate ends of the movable plates (74) abut against the inner sides of the mounting ring seats (17). The middle column (72) and the bottom disc (73) are provided with drive cavities (18), and each movable plate (74) is connected with a cable (19) on the inner side thereof, and the cable (19) penetrates the middle column (72) and extends into the drive cavity (18). ​ ​ ​ ​ ​ ​ The driving chamber (18) is provided with a tension cylinder, the driving end of the tension cylinder is connected with the end of the tension cable (19), the tension cylinder is driven to drive the tension cable (19) to move, so that the movable plate (74) is rotated to adjust the dust suction direction of the dust suction hole (12).

9. The unmanned aerial vehicle blade automatic polishing equipment of claim 5, wherein, The first hydraulic cylinder is installed at the end of the sliding seat (10), the driving end of the first hydraulic cylinder is connected with the sliding seat (10) to drive the sliding seat (10) to move on the longitudinal sliding rail; The vertical sliding plate (21) is slidably installed on the sliding seat (10), the second hydraulic cylinder (22) is installed at the end of the vertical sliding plate (21), the driving end of the second hydraulic cylinder (22) is connected with the vertical sliding plate (21) to drive the vertical sliding plate (21) to move on the sliding seat (10) in the vertical direction; The horizontal plate (23) is installed on the vertical sliding plate (21), the polishing mechanism (11) comprises the polishing wheel (111) installed on the horizontal plate (23); The polishing wheel (111) is rotatably installed on the horizontal plate (23) through the rotating shaft (112), the second driving motor (113) is installed on the horizontal plate (23), the driving end of the second driving motor (113) is in transmission connection with the rotating shaft (112) through the transmission belt (114), the second driving motor (113) drives the rotating shaft (112) and the polishing wheel (111) to rotate through the transmission belt (114).

10. The unmanned aerial vehicle blade automatic polishing equipment of claim 1, wherein, The second horizontal plate (4) is provided with the second cylinder (24), the output end of the second cylinder (24) is connected with the lifting platform (25), the U-shaped clamp (26) is installed on the lifting platform (25); The internal width of the U-shaped clamp (26) is consistent with the width of the position of the blade opposite to the U-shaped clamp (26).

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