A grinding device for tubular parts of unmanned aerial vehicles

Abstract

The present invention relates to the technical field of polishing tubular components of unmanned aerial vehicles, and discloses a polishing device for tubular components of unmanned aerial vehicles, comprising a tubular component body, wherein a plurality of polishing assemblies for polishing the inner wall of the tubular component body are arranged inside the tubular component body, a jacking assembly for lifting the polishing assembly and fitting it to the inner wall of the tubular component body is provided on the side where the plurality of polishing assemblies are close to each other, and a supporting assembly for stably supporting the plurality of jacking assemblies is provided between the plurality of jacking assemblies. Metal debris generated during the polishing process is quickly and efficiently captured by a debris collection device arranged inside the supporting assembly, ensuring the cleanliness of the working area and the long-term stable operation of the system. At the same time, the debris is collected by a debris filtering assembly and then driven by the negative pressure environment created by the negative pressure exhaust mechanism, thereby improving the debris processing efficiency. The driving mechanism transmits power to each functional component through a stable gear transmission.

Description

Technical Field

[0001] The present invention relates to the technical field of polishing tubular components of unmanned aerial vehicles (UAVs), and in particular to a polishing device for the tubular components of UAVs. Background Art

[0002] The polishing device for tubular components of drones is a device specially used for surface finishing of tubular components in drones. This device is usually used to remove burrs, oxide layers and other irregularities on the surface of components to improve the smoothness and dimensional accuracy of the components, ensure their tightness and functionality during the assembly process, improve the surface quality of the components, and make drones safer and more reliable during flight.

[0003] The grinding device for tubular parts of drones is a device specially used for surface finishing of tubular components in drones. The existing technology has some shortcomings when grinding the inner walls of tubular parts. Traditional devices usually use ordinary grinding rods for grinding. Although this method can complete basic grinding work, there are significant problems in design and process. During the grinding process, the metal debris generated cannot be automatically collected and lacks an effective collection mechanism. These debris will fly everywhere, causing pollution to the working environment and increasing the health risks of employees. What is more serious is that these metal debris that are not collected in time may re-attach to the processed surface, affecting the final quality of the parts, which may not only reduce production efficiency, but also have a negative impact on the assembly and long-term performance of the drone, increase the difficulty of cleaning and subsequent maintenance, lead to increased costs, and affect the sustainability and safety of the entire manufacturing process. To this end, we propose a grinding device for tubular parts of drones. Summary of the Invention

[0004] The object of the present invention is to provide a grinding device for tubular parts of drones to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: A grinding device for a tubular component of an unmanned aerial vehicle, comprising a tubular component body, wherein a plurality of polishing assemblies for polishing the inner wall of the tubular component body are disposed inside the tubular component body, a lifting assembly for lifting the polishing assembly and bringing it into contact with the inner wall of the tubular component body is disposed on a side where the plurality of polishing assemblies are close to each other, a support assembly for stably supporting the plurality of lifting assemblies is disposed between the plurality of lifting assemblies, a debris collection device for collecting metal debris generated when grinding and polishing the tubular component body is disposed inside the support assembly, a debris filtering assembly for filtering metal debris is disposed on one side of the debris collection device, a negative pressure exhaust mechanism for cooperating with the debris collection device and generating a negative pressure environment is disposed on one side of the debris filtering assembly, a drive mechanism for driving the support assembly, the plurality of lifting assemblies, the plurality of polishing assemblies, the debris collection device, and the debris filtering assembly to rotate is disposed on the outer side of the negative pressure exhaust mechanism at an end originally away from the support assembly, the drive mechanism also being used to drive the negative pressure exhaust mechanism to operate and generate the negative pressure environment.

[0006] Preferably, the support assembly includes a support tube, a plurality of movable grooves are arranged in a ring at the center of the support tube near the edge, a middle support bar is fixedly connected at the center of the plurality of movable grooves, a plurality of docking holes for cooperating with a debris collection device are arranged in a ring inside the support tube, an externally threaded steel ring is threadedly sleeved on one side of the support tube, and the externally threaded steel ring and the support tube are detachably connected, a sealing cover is fixedly connected to one side of the externally threaded steel ring, and the sealing cover and the support tube are in contact with each other on both sides.

[0007] Preferably, the jacking assembly includes four guide bars and two limit blocks, the four guide bars are respectively fixedly connected to the centers of the two inner walls opposite to each other in the movable groove, the two limit blocks are respectively fixedly sleeved at the two ends away from each other in the movable groove, the two limit blocks are fixedly sleeved with guide rods, the two guide rods are respectively fixedly sleeved at the two ends away from each other in the middle support bar, the four guide bars are each provided with a guide groove at one side of the center, the four guide grooves are each slidably sleeved with a guide rail, and the two limit blocks are respectively fixedly sleeved with guide rods at one side. Two sliding bases are fixedly connected between the guide rails and the two guide rails on the other side, and lower rotating joints are arranged and fixedly connected at the centers of the upper ends of the two sliding bases, and connecting rods are rotatably sleeved on the outer sides of the four lower rotating joints, and springs are slidably sleeved on the outer sides of the two guide rods, and the two ends of the two springs that are far away from each other are respectively abutted against the two sides of the two limit blocks that are close to each other, and the two ends of the two springs that are close to each other are respectively abutted against the two ends of the middle support bar that are far away from each other, and the upper ends of the two connecting rods on one side and the upper ends of the two connecting rods on the other side are close to each other.

[0008] Preferably, the polishing assembly includes four upper rotating joints, which are respectively rotatably sleeved on the upper center of the four connecting rods. The upper ends of the four upper rotating joints are fixedly connected to a top plate, and polishing sandpaper is attached to the upper end of the top plate by double-sided tape. The upper surface of the polishing sandpaper is in contact with the inner wall of the tubular component body.

[0009] Preferably, the debris collection device includes a sealing disk, which is fixedly sleeved inside the support tube at one end away from the external threaded steel ring, and the inside of the sealing disk is fixedly sleeved with multiple exhaust pipes in a radial pattern from the center to the outside, and the air inlet ends of the multiple exhaust pipes are respectively sleeved inside multiple docking holes for collecting metal debris generated by polishing.

[0010] Preferably, the debris filtering assembly includes a clamp, the clamp fixing sleeve is arranged inside the support tube near one end of the sealing disk, and the clamp is fixedly connected to a protective shell at the edge of the center of one end away from the sealing disk, the outside of the protective shell is arranged in a ring near one side with a buckle, the inside of the protective shell is threaded with an externally threaded limiting ring at one end away from the clamp, and the externally threaded limiting ring and the protective shell are detachably connected, the inside of the externally threaded limiting ring is provided with a filter element at a clamping sleeve near one end of the clamp, and the filter element and the externally threaded limiting ring are detachably connected, and the inside of the externally threaded limiting ring is fixedly connected with a rotating handle at one end away from the filter element.

[0011] Preferably, the driving mechanism includes a support plate, which is arranged at one end of the support tube close to the clamp, a transmission outer gear ring is provided at one end of the support plate close to the clamp, and a positioning plate is fixedly connected to one end of the support plate close to the transmission outer gear ring on the side away from the transmission outer gear ring. A driving shaft is rotatably sleeved on the end of the support plate away from the positioning plate through a bearing, and a driving gear is fixedly connected to one end of the driving shaft close to the transmission outer gear ring, and a gear meshing transmission is used between the driving gear and the driving shaft.

[0012] Preferably, the negative pressure exhaust mechanism includes several first positioning bars and a protective tube, and several of the first positioning bars are arranged in a ring and fixedly sleeved on the center of the positioning plate near the edge, and the protective tube is rotatably sleeved on the inside of the support plate near one end of the positioning plate through a bearing, and the transmission outer gear ring is fixedly sleeved on the outside of the protective tube near one end of the positioning plate, and a first inner gear ring is fixedly sleeved at the center of the inner part of the protective tube near one end of several first positioning bars, and several second positioning bars are fixedly connected to the annular sheet row at the center of the inner wall of the protective tube away from one end of several first positioning bars, and a first triangular plate is fixedly connected between several of the first positioning bars away from one end of the positioning plate, and a first rotating shaft is fixedly sleeved at the inside of the first triangular plate near the three corners.

[0013] Preferably, the three first rotating shafts are rotatably connected to the first planetary gears at one end away from the first positioning strips through bearings, the three first planetary gears and the first internal gear ring are meshed, and the transmission ratio between the first internal gear ring and the three first planetary gears is one to five, and the first transmission shaft is rotatably connected to the center of the first triangular plate through bearings, and the first sun gear is fixedly sleeved on the outside of the first transmission shaft near one end of the three first planetary gears, and the transmission ratio between the three first planetary gears and the first sun gear is one to five, and the first transmission shaft is fixedly sleeved at the end away from the first triangular plate, and the second internal gear ring is fixedly sleeved at the center edge of the end of the docking plate away from the first sun gear, and a plurality of air circulation holes are arranged in a ring at the center edge of the docking plate, and the three second positioning strips are fixedly connected to the second triangular plate at one end close to each other, and the second rotating shaft is fixedly sleeved on the inside of the second triangular plate near the three corners.

[0014] Preferably, the three second rotating shafts are rotatably sleeved with second planetary gears at the outer sides near one end of the docking plate through bearings, the three second planetary gears and the second internal gear ring are meshed, and the transmission ratio between the second internal gear ring and the three second planetary gears is one to five, a second transmission shaft is rotatably sleeved with a bearing at the inner center of the second triangular plate, and the second transmission shaft is fixedly connected to the second sun gear at one end near the docking plate, and the second sun gear and the second planetary gear are meshed, and the transmission ratio between the three second planetary gears and the second sun gear is one to five, the second transmission shaft is fixedly connected to the turbine fan blade body at one end near the filter element, a plurality of air outlet slots are arranged in an annular manner through the interior of the protective tube near one end of the second triangular plate, and a plurality of locks are fixedly connected in an annular manner at one end of the outer side of the protective tube near the plurality of buckles, and the plurality of locks cooperate with each other, the outer side of the protective tube is sleeved inside the protective shell near one end of the protective shell, and the protective tube and the protective shell are detachably connected.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This UAV tubular component grinding device, through the collaboration of various key components, achieves seamless integration of inner wall grinding, debris collection, debris filtration, and drive. The support assembly ensures the structural stability of the entire device and provides reliable support for the precise movement of the lifting assembly. Through the combination of guide strips, limit blocks, and springs, the lifting assembly achieves precise control of the polishing assembly, effectively adjusting the polishing pressure and position. In conjunction with this, the polishing sandpaper in the polishing assembly improves surface finish and consistency through efficient contact. Metal debris generated during the polishing process is quickly and efficiently captured by the debris collection device located within the support assembly, ensuring a clean work area and long-term stable operation of the system. At the same time, debris collection is carried out by the debris filtration assembly and then promoted by the negative pressure environment created by the negative pressure exhaust mechanism, improving debris processing efficiency. The drive mechanism transmits power to each functional component through a stable gear transmission. Whether in high-intensity continuous work or complex grinding environments, the device can maintain smooth operation and efficient grinding. The design of this device successfully integrates mechanical motion, power transmission, and dust treatment technologies to form an advanced solution for UAV tubular component grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the three-dimensional structure of a grinding device for a tubular component of a drone;

[0018] Figure 2 A schematic diagram of the three-dimensional structure of a grinding device for a tubular component of a drone from another perspective;

[0019] Figure 3 This is a schematic diagram of the three-dimensional disassembled structure of a grinding device for a tubular component of a drone;

[0020] Figure 4 This is a schematic diagram of the three-dimensional split structure of the support assembly of the present invention;

[0021] Figure 5 It is a schematic diagram of the three-dimensional split structure of the jacking assembly of the present invention;

[0022] Figure 6 Schematic diagram of the three-dimensional structure of the rotary joint of the present invention;

[0023] Figure 7 is a schematic diagram of the three-dimensional structure of the debris collection device of the present invention;

[0024] Figure 8 This is a schematic diagram of the three-dimensional disassembled structure of the debris filtering assembly of the present invention;

[0025] Figure 9 Schematic diagram of the three-dimensional split structure of the driving mechanism of the present invention;

[0026] Figure 10It is a schematic diagram of the three-dimensional disassembled structure of the negative pressure exhaust mechanism of the present invention;

[0027] Figure 11 This is a schematic diagram of the three-dimensional disassembled structure of the negative pressure exhaust mechanism of the present invention from another perspective.

[0028] In the figure: 1. Tubular component body;

[0029] 2. Support assembly; 201. Support tube; 202. Movable groove; 203. Middle support bar; 204. Docking hole; 205. Externally threaded steel ring; 206. Sealing cover;

[0030] 3. Lifting assembly; 301. Guide bar; 302. Stop block; 303. Guide rod; 304. Guide groove; 305. Guide rail; 306. Sliding base; 307. Lower rotating joint; 308. Connecting rod; 309. Spring;

[0031] 4. Polishing assembly; 401. Upper rotating joint; 402. Top plate; 403. Polishing sandpaper;

[0032] 5. Debris collection device; 501. Sealing disk; 502. Air extraction pipe;

[0033] 6. Debris filter assembly; 601. Clamp; 602. Protective shell; 603. Buckle; 604. External thread retaining ring; 605. Filter element; 606. Rotating handle;

[0034] 7. Driving mechanism; 701. Support plate; 702. Transmission outer gear ring; 703. Positioning plate; 704. Driving shaft; 705. Driving gear;

[0035] 8. Negative pressure exhaust mechanism; 801. First positioning strip; 802. Protective tube; 803. First inner gear ring; 804. Second positioning strip; 805. First triangular plate; 806. First rotating shaft; 807. First planetary gear; 808. First transmission shaft; 809. First sun gear; 8010. Docking plate; 8011. Second inner gear ring; 8012. Air circulation hole; 8013. Second triangular plate; 8014. Second rotating shaft; 8015. Second planetary gear; 8016. Second transmission shaft; 8017. Second sun gear; 8018. Turbine blade body; 8019. Air outlet slot; 8020. Snap lock. DETAILED DESCRIPTION

[0036] 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.

[0037] See also Figure 1-Figure 3 As shown, the present invention provides a technical solution: a grinding device for a tubular component of an unmanned aerial vehicle, comprising a tubular component body 1, a plurality of polishing assemblies 4 for polishing the inner wall of the tubular component body 1 are arranged inside the tubular component body 1, a jacking assembly 3 for lifting the polishing assembly 4 and fitting it to the inner wall of the tubular component body 1 is provided on each side of the plurality of polishing assemblies 4 close to each other, a support assembly 2 for stably supporting the plurality of jacking assemblies 3 is provided between the plurality of jacking assemblies 3, and a support assembly 2 is provided inside the support assembly 2 for grinding and polishing the tubular component body 1 A debris collection device 5 is provided for collecting the metal debris generated during the polishing process. A debris filtering assembly 6 for filtering metal debris is provided on one side of the debris collection device 5. A negative pressure exhaust mechanism 8 for cooperating with the debris collection device 5 and generating a negative pressure environment is provided on one side of the debris filtering assembly 6. A driving mechanism 7 for driving the support assembly 2, multiple lifting assemblies 3, multiple polishing assemblies 4, the debris collection device 5 and the debris filtering assembly 6 to rotate is provided on the outer side of the negative pressure exhaust mechanism 8, which is originally away from the end of the support assembly 2. The driving mechanism 7 is also used to drive the negative pressure exhaust mechanism 8 to operate to generate a negative pressure environment.

[0038] Furthermore, the present UAV tubular parts grinding device realizes seamless integration of inner wall grinding, debris collection, debris filtration and drive through the cooperation of various key components. The support component 2 ensures the structural stability of the overall device and provides reliable support for the precise movement of the jacking component 3. Through the combination of the guide bar 301, the limit block 302 and the spring 309, the jacking component 3 realizes precise control of the polishing component 4 and effectively adjusts the polishing pressure and position. In coordination with this, the polishing sandpaper 403 in the polishing component 4 improves the surface finish and consistency in an efficient contact manner. The metal debris generated during the polishing process is set The debris collection device 5 inside the support component 2 captures debris quickly and efficiently, ensuring the cleanliness of the working area and the long-term stable operation of the system. At the same time, the debris is collected through the debris filtering component 6 and then promoted by the negative pressure environment created by the negative pressure exhaust mechanism 8, thereby improving the debris processing efficiency. The driving mechanism 7 transmits power to each functional component through a stable gear transmission. Whether in high-intensity continuous work or complex grinding environment, the device can maintain stable operation and efficient grinding. The design of this device successfully integrates mechanical motion, power transmission and dust treatment technology to form an advanced UAV tubular parts grinding solution.

[0039] In the preferred technical solution of this embodiment, please refer to Figure 4 As shown, the support assembly 2 includes a support tube 201, and a plurality of movable grooves 202 are arranged in a ring at the center of the support tube 201 near the edge, and a middle support bar 203 is fixedly connected at the center of the plurality of movable grooves 202. A plurality of docking holes 204 for cooperating with the debris collection device 5 are arranged in a ring inside the support tube 201, and an externally threaded steel ring 205 is threadedly sleeved on one side of the support tube 201, and the externally threaded steel ring 205 and the support tube 201 are detachably connected. A sealing cover 206 is fixedly connected to one side of the externally threaded steel ring 205, and the sealing cover 206 and the support tube 201 are in contact with each other on both sides.

[0040] Furthermore, the support assembly 2 provides basic stability for the entire device. The support tube 201 serves as a core component, and a plurality of movable grooves 202 arranged in a ring are designed inside the support tube. The plurality of movable grooves 202 not only provide a certain operating space for the jacking assembly 3, but also enhance the movement accuracy and stability of the jacking assembly 3, and ensure that it can quickly and effectively return to its initial state when affected by external forces. In addition, the docking hole 204 used for cooperating with the debris collection device 5 passes through the support tube 201, which not only provides a channel for efficient recovery and transmission of metal debris, but also reduces the probability of operation interruption caused by debris blockage. The support tube 201 is connected to the external threaded steel ring 205 by a thread on one side. The external threaded steel ring 205 not only ensures the ability to quickly disassemble and assemble between components, but also through the stable docking of the sealing cover 206, the equipment is not affected by external environmental factors during operation, thereby improving the long-term reliability and service life of the device.

[0041] In the preferred technical solution of this embodiment, please refer to Figure 5As shown, the lifting assembly 3 includes four guide bars 301 and two limit blocks 302. The four guide bars 301 are respectively fixedly connected to the two inner walls of the movable groove 202 at the two ends, and the two limit blocks 302 are respectively fixedly sleeved at the two ends away from each other in the movable groove 202. The two limit blocks 302 are fixedly sleeved with guide rods 303 inside. The two guide rods 303 are respectively fixedly sleeved at the two ends away from each other in the middle support bar 203 at the two ends close to each other. A guide groove 304 is opened at one side of the center of the four guide bars 301. A guide rail 305 is slidably sleeved inside the four guide grooves 304. Two guide rails 305 are slidably sleeved inside. Two sliding bases 306 are fixedly connected between the rails 305 and between the two guide rails 305 on the other side. Lower rotating joints 307 are arranged and fixedly connected at the centers of the upper ends of the two sliding bases 306, and connecting rods 308 are rotatably sleeved on the outer sides of the four lower rotating joints 307. Springs 309 are slidably sleeved on the outer sides of the two guide rods 303. The two ends of the two springs 309 that are far away from each other are respectively abutted against the two sides of the two limit blocks 302 that are close to each other. The two ends of the two springs 309 that are close to each other are respectively abutted against the two ends of the middle support bar 203 that are far away from each other. The upper ends of the two connecting rods 308 on one side and the upper ends of the two connecting rods 308 on the other side are close to each other.

[0042] Furthermore, the lifting assembly 3 realizes precise control of the polishing assembly 4. The guide bar 301 installed in the movable groove 202 has a high degree of guidance, ensuring that the movement trajectory of the guide rod 303 is fixed within the set range, avoiding equipment operation errors caused by imbalance during movement, and the setting of the limit block 302 provides strong support for each end of the guide rod 303, so that the assembly will not shake or deviate during movement. The guide rail 305 in the guide groove 304 is connected to the sliding base 306 through smooth sliding, ensuring stability and precision during linear motion. The spring 309 between the guide rod 303 and the limit block 302 not only provides the required static stability for the system in a static state, but also plays a buffering role during dynamic operation, absorbing the impact force caused by load changes, and effectively ensures the lifting of the polishing assembly 4, so that the polishing assembly 4 and the inner wall of the tubular component body 1 fit each other, thereby improving the durability and polishing accuracy of the device.

[0043] In the preferred technical solution of this embodiment, please refer to Figure 5-Figure 6 As shown, the polishing assembly 4 includes four upper rotating joints 401, which are rotatably sleeved on the upper center of the four connecting rods 308 respectively. The upper ends of the four upper rotating joints 401 are fixedly connected to the top plate 402, and the upper end of the top plate 402 is adhered to the polishing sandpaper 403 by double-sided tape. The upper surface of the polishing sandpaper 403 is in contact with the inner wall of the tubular component body 1.

[0044] Furthermore, the upper rotating joint 401 of the polishing assembly 4 is sleeved on the connecting rod 308, which not only realizes the stable fixation of the parts, but also provides a certain space for the movement of the top plate 402. The top plate 402 is combined with the polishing sandpaper 403 through double-sided tape. The upper surface of the polishing sandpaper 403 fits tightly with the inner wall of the tubular component body 1, achieving an efficient polishing effect. This design ensures that the polishing sandpaper 403 can apply force evenly on the entire inner surface of the pipe, which not only improves the surface finish, but also ensures the uniform removal of material. The design of the upper rotating joint 401 ensures flexibility in operation.

[0045] In the preferred technical solution of this embodiment, please refer to Figure 7 As shown, the debris collection device 5 includes a sealing disk 501, which is fixedly sleeved inside the support tube 201 at one end away from the external threaded steel ring 205, and a plurality of exhaust pipes 502 are fixedly sleeved inside the sealing disk 501 in a radial pattern from the center to the outside, and the air inlet ends of the plurality of exhaust pipes 502 are respectively sleeved inside the plurality of docking holes 204 for collecting metal debris generated by polishing.

[0046] Furthermore, the sealing disk 501 in the debris collection device 5, with its precise sealing ability, isolates the exchange of internal air and the external environment, thereby improving the overall sealing performance and dust reaction reduction rate of the system. The multiple exhaust pipes 502 in this component are radially distributed to maximize the air flow path, effectively capture and collect metal debris generated during the polishing process, and reduce the secondary wear of the workpiece surface caused by debris accumulation. The metal debris is quickly sucked away through the docking hole 204, which not only improves the long-term working ability of the system, but also reduces the frequency of downtime maintenance caused by debris blockage.

[0047] In the preferred technical solution of this embodiment, please refer to Figure 8 As shown, the debris filtering assembly 6 includes a clamp 601, which is fixedly sleeved inside the support tube 201 near one end of the sealing disk 501, and the clamp 601 is fixedly connected to a protective shell 602 at the edge of the center of one end away from the sealing disk 501, and a buckle 603 is arranged in a ring on the outside of the protective shell 602 near one side, and an externally threaded limiting ring 604 is threadedly sleeved at the end of the protective shell 602 away from the clamp 601, and the externally threaded limiting ring 604 and the protective shell 602 are detachably connected, and a filter element 605 is clamped at the internal end of the externally threaded limiting ring 604 near the clamp 601, and the filter element 605 and the externally threaded limiting ring 604 are detachably connected, and a rotating handle 606 is fixedly connected to the internal end of the externally threaded limiting ring 604 away from the filter element 605.

[0048] Furthermore, the debris filter assembly 6 is fastened by the clamp 601 to ensure that the various connection parts will not loosen during operation, thereby ensuring the internal stability of the debris filter assembly 6. The protective shell 602 not only increases the durability of the equipment, but also provides convenience for subsequent maintenance and inspection. The combination between the buckle 603 and the external threaded limit ring 604 improves the replacement efficiency of the filter element 605 and reduces the production downtime. The design of the filter element 605 itself, together with the fine pore size distribution, accurately intercepts metal debris, ensuring that only air that has been precisely filtered enters the body, thereby extending the working life of the machine.

[0049] In the preferred technical solution of this embodiment, please refer to Figure 9 As shown, the driving mechanism 7 includes a support plate 701, which is arranged at one end of the support tube 201 close to the clamp 601, and a transmission outer gear ring 702 is provided at one end of the support plate 701 close to the clamp 601. A positioning plate 703 is fixedly connected to the side of the support plate 701 away from the transmission outer gear ring 702 close to one end of the transmission outer gear ring 702, and a driving shaft 704 is rotatably sleeved at the end of the support plate 701 away from the positioning plate 703 through a bearing, and a driving gear 705 is fixedly connected to the end of the driving shaft 704 close to the transmission outer gear ring 702, and the driving gear 705 and the driving shaft 704 are gear meshing transmission.

[0050] Furthermore, the core of the driving mechanism 7 lies in the support plate 701, which not only provides support for the entire machine, but also forms a stable power connection with the transmission outer gear ring 702. The positioning plate 703 increases the accuracy of the entire system, ensuring the stable rotation of the driving shaft 704 during operation. The driving gear 705 located at the other end of the driving shaft 704 realizes precise gear meshing with other components, stimulating the linkage effect of the entire polishing device. The reasonable layout of each bearing provides smooth support for the entire power transmission process and reduces energy loss during operation.

[0051] In the preferred technical solution of this embodiment, please refer to Figures 1-11As shown, the negative pressure exhaust mechanism 8 includes a plurality of first positioning bars 801 and a protective tube 802. The plurality of first positioning bars 801 are arranged in a ring and fixedly sleeved on the inner center of the positioning plate 703 near the edge. The protective tube 802 is rotatably sleeved on the inner side of the support plate 701 near one end of the positioning plate 703 through a bearing, and the transmission outer gear ring 702 is fixedly sleeved on the outer side of the protective tube 802 near one end of the positioning plate 703. The inner center of the protective tube 802 is fixedly sleeved on one end near the plurality of first positioning bars 801. The center of the inner wall of the protective tube 802 is away from one end of the plurality of first positioning bars 801 and is fixedly connected to a plurality of second positioning bars 804 in an annular sheet row. The plurality of first positioning bars 801 are away from the positioning plate. A first triangular plate 805 is fixedly connected to one end of 703, and a first rotating shaft 806 is fixedly sleeved on the inside of the first triangular plate 805 near the three corners. The outside of the three first rotating shafts 806 are away from the end of the first positioning bars 801 and are rotatably sleeved with first planetary gears 807 through bearings. The three first planetary gears 807 and the first inner gear ring 803 are meshed and driven, and the transmission ratio between the first inner gear ring 803 and the three first planetary gears 807 is one to five. A first transmission shaft 808 is rotatably sleeved on the center of the first triangular plate 805 through a bearing. A first sun gear 809 is fixedly sleeved on the outside of the first transmission shaft 808 near one end of the three first planetary gears 807. The three first planetary gears 807 are meshed and driven. The transmission ratio between the first inner gear ring 803 and the three first planetary gears 807 is one to five. The transmission ratio between the first transmission shaft 808 and the first sun gear 809 is one to five. A docking disc 8010 is fixedly sleeved at the end of the outer side of the first transmission shaft 808 away from the first triangular plate 805, and a second inner gear ring 8011 is fixedly sleeved at the center of the end of the docking disc 8010 away from the first sun gear 809. A number of air circulation holes 8012 are arranged in a ring at the center of the docking disc 8010 near the edge. A second triangular plate 8013 is fixedly connected between the ends of the three second positioning bars 804 close to each other. A second rotating shaft 8014 is fixedly sleeved near the three corners of the second triangular plate 8013. The outer sides of the three second rotating shafts 8014 are rotatably sleeved with second planetary gears through bearings at one end near the docking disc 8010. Gear 8015, the three second planetary gears 8015 are meshed with the second inner gear ring 8011, and the transmission ratio between the second inner gear ring 8011 and the three second planetary gears 8015 is one to five. The second transmission shaft 8016 is rotatably sleeved at the center of the second triangular plate 8013 through a bearing, and the second transmission shaft 8016 is fixedly connected to the second sun gear 8017 at one end close to the docking plate 8010, and the second sun gear 8017 is meshed with the second planetary gears 8015. The transmission ratio between the three second planetary gears 8015 and the second sun gear 8017 is one to five. The second transmission shaft 8016 is fixedly connected to the turbine blade body 8018 at one end close to the filter element 605.A plurality of air outlet slots 8019 are arranged in a circular pattern inside the protective tube 802 near one end of the second triangular plate 8013. A plurality of snap locks 8020 are arranged in a circular pattern and fixedly connected to the outer end of the protective tube 802 near one end of the plurality of buckles 603. The plurality of snap locks 8020 and the plurality of buckles 603 cooperate with each other. The outer end of the protective tube 802 near the protective shell 602 is sleeved inside the protective shell 602, and the protective tube 802 and the protective shell 602 are detachably connected.

[0052] Furthermore, the core of the negative pressure exhaust mechanism 8 is composed of the first positioning bar 801 and the second positioning bar 804, which respectively support the strict mechanical structure inside the protective tube 802. The protective tube 802 optimizes the transmission capacity through high-precision rotational connection to ensure that its built-in components are always in the best operating state. The power is output between the first triangular plate 805 and the first planetary gear 807 and the first sun gear 809 it carries, and the first planetary gear 807 and the first sun gear 809 according to a transmission ratio of 1:5. Through this design, the system can achieve efficient rotation at a smaller gear radius, generating a negative pressure environment that is conducive to the rapid extraction of metal debris. Similarly, the second transmission structure continues to maintain the stability of the overall suction through the second inner gear ring 8011 and the turbine blade body 8018, ensuring that any fine dust can be removed in a timely and effective manner during polishing. The final air outlet slot 8019 removes the filtered clean air while maintaining a stable negative pressure, which is the key to the closed-loop operation of the entire system.

[0053] Working principle: This UAV tubular parts grinding device realizes efficient inner wall grinding and metal debris management through the coordinated functions of various components. An annular movable groove 202 is provided in the support tube 201 of the support component 2, which improves the movement accuracy and stability of the jacking component 3, and cooperates with the debris collection device 5 through the docking hole 204 to achieve efficient recovery of metal debris. The external threaded steel ring 205 and the sealing cover 206 ensure rapid assembly and disassembly of the components and enhance the environmental adaptability of the equipment. The jacking component 3 uses the guide bar 301, the limit block 302 and the spring 309 and other structures to achieve precise control of the polishing component 4, ensuring a close fit with the inner wall of the tubular component, improving The durability and polishing accuracy of the device are improved. The upper rotating joint 401 and the top plate 402 of the polishing component 4 ensure uniform contact and effective polishing of the polishing sandpaper 403, thereby improving the smoothness of the inner wall. The debris collection device 5 uses a sealing disk 501 and a radial exhaust pipe 502 to improve the sealing performance while achieving efficient collection of debris and reducing the possibility of secondary wear during the polishing process. The debris filtering component 6 is fixed by a clamp 601 and matched with a precision filter element 605 to achieve accurate filtration of metal debris, ensuring long-term and stable operation of the equipment. The driving mechanism 7 is composed of a support plate 701, a transmission outer gear ring 702 and a driving gear 705, which maintains the power transmission. Stability and transmission efficiency, the negative pressure exhaust mechanism 8 generates a negative pressure environment through gear reduction and turbine blades, effectively extracts fine dust, and finally exhausts clean air through the air outlet slot 8019 to ensure the smooth operation of the system closed loop. The overall design integrates mechanical transmission and dust treatment technology, providing a modern and efficient grinding solution. The core of the negative pressure exhaust mechanism 8 is composed of the first positioning bar 801 and the second positioning bar 804, which respectively support the strict mechanical structure in the protection tube 802. The protection tube 802 optimizes the transmission capacity through high-precision rotation connection to ensure that its built-in components are always in the best operating state. The first planetary gear 807 and the first sun gear 809 output power at a transmission ratio of 1:5. Through this design, the system can achieve efficient rotation at a smaller gear radius, generating a negative pressure environment that is conducive to the rapid extraction of metal debris. Similarly, the second transmission structure continues to maintain the stability of the overall suction force through the second inner gear ring 8011 and the turbine blade body 8018, ensuring that any fine dust can be removed in a timely and effective manner during polishing. The final air outlet 8019 discharges the filtered clean air while maintaining a stable negative pressure, which is the key to the closed-loop operation of the entire system.

[0054] 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.

[0055] 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 a tubular component of an unmanned aerial vehicle, comprising a tubular component body (1), characterized in that: The tubular component body (1) is provided with a plurality of polishing assemblies (4) for polishing the inner wall of the tubular component body (1), and a lifting assembly (3) for lifting the polishing assembly (4) and fitting it to the inner wall of the tubular component body (1) is provided on one side of the plurality of polishing assemblies (4) close to each other, and a supporting assembly (2) for stably supporting the plurality of lifting assemblies (3) is provided between the plurality of lifting assemblies (3), and a debris collecting device (5) for collecting metal debris generated when the tubular component body (1) is polished is provided inside the supporting assembly (2). A debris filtering assembly (6) for filtering metal debris is provided on one side of the debris collecting device (5), and a negative pressure exhaust mechanism (8) for cooperating with the debris collecting device (5) and generating a negative pressure environment is provided on one side of the debris filtering assembly (6). A driving mechanism (7) for driving the support assembly (2), a plurality of lifting assemblies (3), a plurality of polishing assemblies (4), the debris collecting device (5) and the debris filtering assembly (6) to rotate is provided on the outer side of the negative pressure exhaust mechanism (8) at one end away from the support assembly (2). The driving mechanism (7) is also used to drive the negative pressure exhaust mechanism (8) to operate and generate a negative pressure environment.

2. The grinding device for a tubular component of an unmanned aerial vehicle according to claim 1, characterized in that: The support assembly (2) comprises a support tube (201), a plurality of movable grooves (202) are arranged in an annular pattern at the center of the support tube (201) and close to the edge, a middle support bar (203) is fixedly connected to the center of each of the plurality of movable grooves (202), and a plurality of docking holes (204) for cooperating with the debris collection device (5) are arranged in an annular pattern and run through the support tube (201).

3. The grinding device for a tubular component of an unmanned aerial vehicle according to claim 2, characterized in that: The lifting assembly (3) includes four guide bars (301) and two limit blocks (302), the four guide bars (301) are respectively fixedly connected to the two inner walls of the movable groove (202) at both ends, the two limit blocks (302) are respectively fixedly sleeved at the two ends inside the movable groove (202), the inner center of the four guide bars (301) is provided with a guide groove (304) at one side, the four guide grooves (304) are slidably sleeved with a guide rail (305), two sliding bases (306) are fixedly connected between the two guide rails (305) at one side and between the two guide rails (305) at the other side, the upper centers of the two sliding bases (306) are arranged and fixedly connected with a lower rotating joint (307), and the outer sides of the four lower rotating joints (307) are rotatably sleeved with a connecting rod (308).

4. The grinding device for a tubular component of an unmanned aerial vehicle according to claim 2, characterized in that: The debris collection device (5) comprises a sealing disc (501), the sealing disc (501) being fixedly sleeved at one end inside the support tube (201), and a plurality of air extraction pipes (502) being fixedly sleeved inside the sealing disc (501) in a radial pattern extending from the center outward.

5. The grinding device for a tubular component of a drone according to claim 4, characterized in that: The debris filtering assembly (6) comprises a clamp (601), the clamp (601) being fixedly sleeved inside the support tube (201) near one end of the sealing disc (501), and a protective shell (602) being fixedly connected to the center of one end of the clamp (601) away from the sealing disc (501), a buckle (603) being arranged in an annular manner and fixedly sleeved on one side of the outside of the protective shell (602), and an externally threaded limiting ring (604) being threadedly sleeved on one end of the inside of the protective shell (602).

6. The grinding device for a tubular component of an unmanned aerial vehicle according to claim 2, characterized in that: The driving mechanism (7) comprises a support plate (701), the support plate (701) being arranged at one end of the support tube (201), a transmission outer gear ring (702) being arranged at one end of the support plate (701), and a positioning plate (703) being fixedly connected at one end of the support plate (701) that is away from the transmission outer gear ring (702) and close to the transmission outer gear ring (702).

7. The grinding device for a tubular component of an unmanned aerial vehicle according to claim 6, characterized in that: The negative pressure exhaust mechanism (8) comprises a plurality of first positioning bars (801) and a protective tube (802), wherein the plurality of first positioning bars (801) are arranged in a ring shape and fixedly sleeved inside the positioning plate (703), the protective tube (802) is rotatably sleeved inside the support plate (701) through a bearing, and the transmission outer gear ring (702) is fixedly sleeved outside the protective tube (802), a first inner gear ring (803) is fixedly sleeved at one end of the inner center of the protective tube (802) close to the plurality of first positioning bars (801), a plurality of second positioning bars (804) are fixedly connected to an annular sheet array at one end of the inner wall of the protective tube (802) away from the plurality of first positioning bars (801), a first triangular plate (805) is fixedly connected at one end between the plurality of first positioning bars (801), and a first rotating shaft (806) is fixedly sleeved at each of the three corners of the inner wall of the first triangular plate (805).

8. The grinding device for a tubular component of a drone according to claim 7, characterized in that: The three first rotating shafts (806) are rotatably sleeved with first planetary gears (807) at one end away from the first positioning bars (801) through bearings. The three first planetary gears (807) and the first inner gear ring (803) are meshingly driven, and the transmission ratio between the first inner gear ring (803) and the three first planetary gears (807) is one to five. The first transmission shaft (808) is rotatably sleeved with a bearing at the center of the inner portion of the first triangular plate (805). The first sun gear (809) is fixedly sleeved at one end of the outer side of the first transmission shaft (808) close to the three first planetary gears (807).

9. The grinding device for a tubular component of an unmanned aerial vehicle according to claim 8, characterized in that: A docking plate (8010) is fixedly provided on the outer side of the first transmission shaft (808) at one end away from the first triangular plate (805), and a second inner gear ring (8011) is fixedly provided at the center of the docking plate (8010) at the edge away from the first sun gear (809). A plurality of air circulation holes (8012) are arranged in a ring and penetrate through the center of the docking plate (8010) at the edge. A second triangular plate (8013) is fixedly connected between the ends of the three second positioning strips (804) close to each other, and a second rotating shaft (8014) is fixedly provided at the three corners of the second triangular plate (8013).

10. The grinding device for tubular parts of a drone according to claim 9, characterized in that: The outer sides of the three second rotating shafts (8014) are all connected to the second planetary gears (8015) through bearings at one end close to the docking plate (8010). The center of the second triangular plate (8013) is connected to the second transmission shaft (8016) through bearings. The second transmission shaft (8016) is fixedly connected to the second sun gear (8017) at one end close to the docking plate (8010). The turbine blade is fixedly connected to one end of the second transmission shaft (8016). The protective tube (802) is provided with a plurality of air outlet slots (8019) arranged in an annular manner and extending through one end thereof near the second triangular plate (8013), and a plurality of snap locks (8020) are arranged in an annular manner and fixedly connected to one end thereof near the multiple buckles (603), and the multiple snap locks (8020) cooperate with the multiple buckles (603), and the outer end of the protective tube (802) is sleeved inside the protective shell (602).

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