Positioning tool for assembling unmanned aerial vehicle

Abstract

The utility model belongs to the technical field of unmanned aerial vehicle production, and particularly provides a positioning tool for unmanned aerial vehicle assembly, which comprises a positioning assembly and a lifting assembly, the positioning assembly comprises a working platform, two sliding clamping plates and a plurality of sliding rods, the two sliding clamping plates are connected on the working platform at intervals left and right, and the sliding rods are connected on the working platform. Each sliding clamping plate is connected with a plurality of sliding rods in a penetrating mode, and the lower portion of the working platform is connected with a lifting assembly. The problems that when an existing unmanned aerial vehicle is assembled, irregular accessories are prone to deflection due to touch generated by workers in the assembling process, the workers need to correct the positions of the accessories again to conduct follow-up assembling work, and the production efficiency of the unmanned aerial vehicle is affected are solved. The sliding clamping plate can position and clamp the unmanned aerial vehicle body through the sliding rod, the situation that deflection is caused by touch in the assembling process is avoided, follow-up assembling work is guaranteed, and the production efficiency of the unmanned aerial vehicle is improved.

Description

Technical Field

[0001] This utility model belongs to the field of drone manufacturing technology, specifically relating to a positioning fixture for drone assembly. Background Technology

[0002] Unmanned aerial vehicles (UAVs) are unmanned aerial vehicles that operate autonomously through remote control or pre-programmed procedures. They mainly consist of a power system, navigation module, sensors, and communication equipment. Types include fixed-wing, multi-rotor, and vertical take-off and landing hybrid types, with weights ranging from hundreds of grams to several tons. Their core advantages lie in their high flexibility, low operating costs, and ability to replace humans in high-risk environments. Application scenarios cover military, civilian, and consumer fields. In recent years, relying on artificial intelligence, 5G networks, and high-precision positioning technology, UAVs have gradually achieved swarm collaboration and autonomous decision-making for complex tasks, becoming key tools in fields such as smart cities and environmental monitoring.

[0003] Existing drones are typically manufactured by assembling several components together. However, most of these drone components are irregularly shaped. These irregular components are easily deflected by workers during assembly, requiring workers to readjust the position of the components before proceeding with subsequent assembly work, which affects the production efficiency of drones. To address this, we propose a positioning fixture for assembling large drones.

[0004] Chinese patent document CN208289754U discloses an assembly and positioning device for a small unmanned aerial vehicle (UAV) airborne fuse mechanism. The device includes a body, a spring, a sliding center, a handle, an operating rod, and a pin. The body serves as the base of the device. A sliding center is installed in the inner hole at its left end, allowing it to slide left and right along the inner hole. A spring is installed on the right end face of the sliding center, with the right end of the spring limited by the pin. A handle and an operating rod are also fixedly connected to the sliding center for operating it. This device offers accurate positioning, high production efficiency, and avoids the assembly accuracy and consistency issues caused by differences in individual assembler skill levels. It also improves the assembly production efficiency of UAV airborne fuse mechanisms to a certain extent, directly reducing debugging and adjustment costs and effectively improving the reliability of the equipment in performing its tasks. However, this document is not applicable to the assembly and positioning of UAVs. Utility Model Content

[0005] The present invention provides a positioning fixture for drone assembly, which aims to overcome the problem in the prior art where irregular parts are easily deflected by workers during drone assembly, requiring workers to readjust the position of the parts before proceeding with subsequent assembly work, thus affecting the production efficiency of drones.

[0006] Therefore, this utility model provides a positioning fixture for assembling unmanned aerial vehicles (UAVs), including a positioning component and a lifting component. The positioning component includes a working platform, two sliding clamps and multiple sliding rods. The two sliding clamps are connected to the top of the working platform at intervals. Multiple sliding rods are connected through each sliding clamp. The lifting component is connected to the bottom of the working platform.

[0007] Preferably, the positioning assembly further includes a bidirectional lead screw, which is connected to the front of the work platform and passes through the lower front of two sliding clamps.

[0008] Preferably, the positioning component further includes a cylindrical slide rod, which is connected to the rear of the work platform and passes through the lower rear part of two sliding clamps.

[0009] Preferably, the slide bar is a rectangular slide bar.

[0010] Preferably, the positioning component further includes a limiting protrusion, and one end of the slide rod away from the sliding clamp is connected to the limiting protrusion.

[0011] Preferably, the positioning assembly further includes a spring, with the spring sleeved on the slide bar between the sliding clamp and the limiting protrusion, and both the sliding clamp and the limiting protrusion being fixedly connected to the spring.

[0012] Preferably, the lifting assembly includes a threaded screw, a gear assembly, a pulley assembly, a cylindrical screw, a circular annular protrusion, multiple support components, and two fixing blocks. A fixing block is connected to the lower left and lower right middle sections of the work platform. The threaded screw passes between the two fixing blocks. The left side of the threaded screw is connected to the cylindrical screw via the gear assembly. The cylindrical screw is fitted with a circular annular protrusion. The right side of the threaded screw is connected to the pulley assembly. Multiple support components are connected to the lower part of the work platform.

[0013] Preferably, the gear component includes a bevel gear one and a bevel gear two. The bevel gear one is sleeved on the left side of the threaded screw, and the upper part of the cylindrical screw is sleeved on the bevel gear two. The bevel gear one meshes with the bevel gear two.

[0014] Preferably, the pulley assembly includes two pulleys and a drive belt. The two pulleys are distributed front to back, with the right side of the threaded screw sleeved inside the rear pulley and the drive belt sleeved outside the two pulleys.

[0015] Preferably, the lifting assembly further includes a second electric motor, the power output shaft of which is connected to the front belt pulley of the two belt pulleys.

[0016] The beneficial effects of this utility model are:

[0017] 1. The positioning fixture for drone assembly provided by this utility model includes a positioning component and a lifting component. The positioning component includes a working platform, two sliding clamps, and multiple sliding rods. The two sliding clamps are connected to the upper part of the working platform at intervals. Multiple sliding rods are connected through each sliding clamp. The lifting component is connected to the lower part of the working platform. The drone body is placed at the center of the upper part of the working platform. The two sliding clamps are moved to move closer to the drone body, so that the sliding rods contact the outer surface of the drone body and generate displacement. When the appropriate position is reached, the displacement of the sliding clamps is stopped. Through the sliding of the sliding rods, several sliding rods are made to fit tightly against the outer surface of the drone body, reducing the gap between the sliding clamps and the outer surface of the drone body. This allows the sliding clamps to position and clamp the drone body through the sliding rods, avoiding deflection caused by contact during assembly, ensuring the smooth progress of subsequent assembly work, and improving the production efficiency of drones. The lifting component moves the work platform to a height suitable for workers, improving the comfort of workers.

[0018] 2. The positioning fixture for assembling drones provided by this utility model has a bidirectional lead screw connected to the front of the work platform, and the bidirectional lead screw passes through the lower front part of two sliding clamps. By rotating the bidirectional lead screw, the two sliding clamps can be easily moved, making the operation simple.

[0019] 3. The positioning fixture for drone assembly provided by this utility model includes a lifting assembly comprising a threaded screw, a gear assembly, a pulley assembly, a cylindrical screw, a circular annular protrusion, multiple support components, and two fixing blocks. The pulley assembly drives the threaded screw to rotate, which in turn drives the gear assembly to rotate, which in turn drives the cylindrical screw to rotate. The cylindrical screw and the circular annular protrusion are threadedly connected, and the cylindrical screw screws in and out of the circular annular protrusion, thus moving the work platform up and down. The structure is simple, easy to operate, and has good stability. Attached Figure Description

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] Figure 1 This is the main structural view of the positioning fixture used for drone assembly;

[0022] Figure 2 This is a rear view of the positioning fixture used for assembling drones.

[0023] Figure 3 yes Figure 2 Enlarged structural diagram at point A in the middle;

[0024] Figure 4 This is a partial structural front view of the positioning fixture used for drone assembly;

[0025] Figure 5 This is a bottom view of the left-hand structure of the positioning fixture used for drone assembly;

[0026] Figure 6 This is a top-view structural view of the positioning fixture used for assembling drones.

[0027] Explanation of reference numerals in the attached drawings: 1. Positioning component; 111. Working platform; 112. Limiting protrusion; 12. UAV body; 131. Two-way lead screw; 132. Cylindrical slide bar; 14. Sliding clamp; 151. Slide bar; 152. Limiting protrusion; 153. Spring; 16. Electric motor one;

[0028] 2. Lifting assembly; 21. Threaded screw; 221. Bevel gear one; 222. Bevel gear two; 23. Gear housing; 241. Cylindrical screw; 242. Circular protrusion one; 251. Circular protrusion two; 252. Cylindrical protrusion; 26. Rotary wheel housing; 271. Belt pulley; 272. Transmission belt; 28. Motor two; 291. Assembly base plate; 292. Universal roller; 293. Storage box. Detailed Implementation

[0029] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0030] Example 1:

[0031] like Figures 1-6 As shown, a positioning fixture for assembling a drone includes a positioning component 1 and a lifting component 2. The positioning component 1 includes a working platform 111, two sliding clamps 14 and multiple sliding rods 151. The two sliding clamps 14 are connected to the working platform 111 at intervals on the left and right. Multiple sliding rods 151 are connected through each sliding clamp 14. The lifting component 2 is connected to the bottom of the working platform 111.

[0032] Specifically, the drone body 12 is placed at the center of the work platform 111. Two sliding clamps 14 are moved closer to the drone body 12, causing the slide rod 151 to contact and displace with the outer surface of the drone body 12. When the position is adjusted to a suitable level, the movement of the sliding clamps 14 is stopped. Through the sliding of the slide rod 151, several slide rods 151 are tightly fitted with the outer surface of the drone body 12, reducing the gap between the sliding clamps 14 and the outer surface of the drone body 12. This allows the sliding clamps 14 to position and clamp the drone body 12 through the slide rods 151, preventing deflection caused by contact during assembly, ensuring the smooth progress of subsequent assembly work, and improving the production efficiency of the drone. The lifting assembly 2 moves the work platform 111 to a height suitable for workers, improving the comfort of the workers.

[0033] Example 2:

[0034] Based on Embodiment 1, the positioning component 1 further includes a bidirectional lead screw 131, which is connected to the front of the working platform 111 and passes through the lower front of two sliding clamps 14.

[0035] Specifically, rotating the bidirectional lead screw 131 facilitates the movement of the two sliding clamps 14, making operation simple.

[0036] Preferably, the positioning component 1 further includes a cylindrical slide rod 132, which is connected to the rear of the working platform 111 and passes through the lower rear of two sliding clamps 14.

[0037] Specifically, when the bidirectional lead screw 131 is rotated to move the two sliding clamps 14, the cylindrical slide rod 132 plays a limiting role, and at the same time, the circular shape of the cylindrical slide rod 132 reduces the frictional resistance when the sliding clamps 14 move.

[0038] Preferably, the sliding clamp 14 has multiple through holes, and a sliding rod 151 is inserted into each through hole.

[0039] Specifically, the through hole facilitates the connection of the slide rod 151.

[0040] Preferably, the lower front and lower rear portions of the sliding clamp 14 both protrude downwards, the bidirectional lead screw 131 passes through the lower front protrusions of the two sliding clamps 14, and the cylindrical slide rod 132 passes through the lower rear protrusions of the two sliding clamps 14.

[0041] Specifically, the downward-protruding structure provides excellent connection and limiting for the sliding clamp 14, the bidirectional lead screw 131, and the cylindrical slide bar 132, making full use of the space.

[0042] Preferably, the front left end, front right end, rear left end and rear right end of the working platform 111 are all provided with limiting protrusions 112. The two limiting protrusions 112 at the front of the working platform 111 are rotatably connected to the bidirectional lead screw 131, and the two limiting protrusions 112 at the rear of the working platform 111 are fixedly connected to the cylindrical slide rod 132.

[0043] Specifically, the limiting protrusion ring 112 is used to achieve the limiting connection between the bidirectional lead screw 131 and the cylindrical slide bar 132.

[0044] Preferably, the positioning component 1 further includes a motor 16, which is fixedly connected to the left side of the limiting protrusion 112 at the front left end of the working platform 111, and the power output end of the motor 16 is fixedly connected to the left end of the bidirectional lead screw 131 through a coupling.

[0045] Specifically, the output end on the right side of the motor 16 is on the same horizontal line as the double-acting lead screw 131. The output end on the right side of the motor 16 is fixedly connected to the left side of the double-acting lead screw 131 through a coupling. The motor 16 automatically drives the double-acting lead screw 131 to rotate, thereby moving the sliding clamp 14. The operation is time-saving, labor-saving, and highly automated.

[0046] Preferably, the positioning component 1 further includes a gear housing 23, which is fixedly connected to the working platform 111. A cylindrical screw 241 is sleeved at the bottom center of the second bevel gear 222. The cylindrical screw 241 penetrates the bottom outer surface of the gear housing 23 and extends downward to the interior of the first annular protrusion 242. The outer surface of the cylindrical screw 241 is rotatably connected to the penetrating part of the gear housing 23, and the outer surface of the cylindrical screw 241 is threadedly connected to the penetrating part of the first annular protrusion 242.

[0047] Specifically, the gear housing 23 ensures the stability of the device during use.

[0048] Example 3:

[0049] Based on Embodiment 2, the slide bar 151 is a rectangular slide bar.

[0050] Specifically, when the flat surface of the rectangular slider contacts the drone's surface, it provides a larger contact area, thereby increasing friction and stability. When clamping a drone, this planar contact better distributes the drone's weight and forces, making the clamping force more evenly distributed across the drone's surface and reducing excessive localized stress. Compared to the point or line contact of circular sliders, and the non-uniform contact of irregularly shaped sliders such as elliptical sliders, rectangular sliders are more effective in preventing the drone from wobbling or slipping during clamping. The edges of the rectangular slider can also engage with the edges or specific structures of the drone's surface to achieve better positioning and anti-rotation functionality. When clamping a drone, the edges of the rectangular slider can engage the corresponding parts of the drone, preventing rotation during clamping and ensuring the drone maintains a specific posture.

[0051] Preferably, the through hole is a rectangular through hole.

[0052] Specifically, the rectangular through hole allows the slide rod 151 to slide only in a specific direction within the hole, providing precise linear guidance for its movement and ensuring accuracy and stability. The rectangular slide rod and the rectangular through hole can achieve surface-to-surface contact, resulting in a tighter fit. Compared to the point or line contact between a circular slide rod and a circular hole, or other irregular shapes, this fit can better transmit force and torque and withstand greater loads. The rectangular structure also restricts the rotation of the slide rod 151 relative to the through hole during the through-hole fit.

[0053] Preferably, the positioning component 1 further includes a limiting protrusion 152, and one end of the slide rod 151 away from the sliding clamp 14 is connected to the limiting protrusion 152.

[0054] Specifically, the area of ​​the limiting protrusion 152 is larger than the area of ​​the slide bar 151, thus limiting the spring 153.

[0055] Preferably, a gasket is provided at the end of the slide bar 151 that contacts the drone body 12.

[0056] Specifically, the pads are made of materials such as rubber and silicone, which increase friction and cushioning performance, thereby improving the protection of drones.

[0057] Preferably, the positioning component 1 further includes a spring 153, and the spring 153 is sleeved on the slide rod 151 between the sliding clamp 14 and the limiting protrusion 152. The sliding clamp 14 and the limiting protrusion 152 are both fixedly connected to the spring 153.

[0058] Specifically, the spring 153 ensures that the slide bar 151 moves without falling off the sliding clamp 14 during movement.

[0059] Preferably, the plurality of sliding rods 151 are evenly spaced. This ensures uniform force distribution on the surface of the UAV body 12 and better clamping stability.

[0060] Example 4:

[0061] Based on embodiment 3, the lifting assembly 2 includes a threaded screw 21, a gear component, a pulley component, a cylindrical screw 241, a circular protrusion 242, multiple support components, and two fixing blocks. A fixing block is connected to the lower left and lower right middle portions of the working platform 111. The threaded screw 21 passes between the two fixing blocks. The left side of the threaded screw 21 is connected to the cylindrical screw 241 via the gear component. The circular protrusion 242 is sleeved on the cylindrical screw 241. The right side of the threaded screw 21 is connected to the pulley component. Multiple support components are connected to the lower part of the working platform 111.

[0062] Specifically, the annular protrusion 242 facilitates the connection of the threaded screw 21 to the underside of the work platform 111 without it contacting the underside of the work platform 111, thus facilitating the rotation of the threaded screw 21. The threaded screw 21 rotates via a pulley assembly, which in turn rotates a gear assembly, which in turn rotates the cylindrical screw 241. The cylindrical screw 241 and the annular protrusion 242 are threaded together, and the cylindrical screw 241 screws in and out of the annular protrusion 242, causing the work platform 111 to move up and down. This design is simple, easy to operate, and provides good stability.

[0063] Preferably, the gear component includes a first bevel gear 221 and a second bevel gear 222. The first bevel gear 221 is sleeved on the left side of the threaded screw 21, and the second bevel gear 222 is sleeved on the upper part of the cylindrical screw 241. The first bevel gear 221 meshes with the second bevel gear 222.

[0064] Specifically, bevel gear 221 and bevel gear 222 can realize the motion and power transmission between two intersecting shafts, converting the rotational motion of the threaded screw 21 into the up-and-down motion of the cylindrical screw 241. This allows for flexible changes in the transmission direction, making the equipment more flexible in spatial layout. The bevel gears have a large tooth surface contact area and smooth meshing, resulting in low vibration and noise. The transmission ratio is relatively stable, ensuring a more precise transmission relationship.

[0065] Preferably, the pulley assembly includes two pulleys 271 and a drive belt 272. The two pulleys 271 are distributed front to back. The right side of the threaded screw 21 is sleeved inside the rear pulley 271, and the drive belt 272 is sleeved outside the two pulleys 271.

[0066] Specifically, by driving the belt pulley 271 to rotate via the transmission belt 272, the speed and direction of the belt pulley 271 can be adjusted to precisely control the movement speed and direction of the threaded screw 21. Power transmission is achieved by relying on the friction between the transmission belt 272 and the belt pulley 271, which can buffer and absorb vibrations and impacts during the transmission process, thereby achieving smooth transmission and reducing vibration and noise during equipment operation.

[0067] Preferably, the lifting assembly 2 further includes a second electric motor 28, the power output shaft of which is connected to the front belt pulley 271 of the two belt pulleys 271.

[0068] Specifically, the output end of the left side of the second motor 28 is on the same horizontal line as the belt pulley 271 located at the front. The output end of the left side of the second motor 28 is fixedly connected to the belt pulley 271 located at the front through a coupling. The second motor 28 automatically drives the belt pulley 271 at the front to rotate. The belt pulley 271 at the front drives the belt pulley 271 at the rear to rotate through the transmission belt 272. The belt pulley 271 at the rear drives the screw 21 to rotate. The operation is time-saving and labor-saving, and has a high degree of automation.

[0069] Preferably, the lifting assembly 2 further includes a rotating wheel housing 26, on which a working platform 111 is fixedly connected. A belt pulley assembly is fitted inside the rotating wheel housing 26. A second motor 28 is fixedly connected to the right side of the rotating wheel housing 26. The output end of the second motor 28 on the left side is on the same horizontal line as the belt pulley 271 located on the front side. The output end of the second motor 28 on the left side is fixedly connected to the belt pulley 271 located on the front side through a coupling.

[0070] Specifically, the rotor housing 26 ensures the stability of the device during use.

[0071] Preferably, the number of support components is four, and the four support components are distributed at the four corners of the working platform 111 to improve the stability of the device.

[0072] Preferably, the support component includes a second annular protrusion 251 and a cylindrical protrusion 252, with the cylindrical protrusion 252 connected to the lower part of the second annular protrusion 251, and the cylindrical protrusion 252 being sleeved inside the second annular protrusion 251.

[0073] Specifically, by moving the cylindrical protrusion 252 into and out of the annular protrusion 251, the length of the supporting component is changed, thereby providing stable support for the lifting and lowering of the work platform 111.

[0074] Example 5:

[0075] Based on embodiment 4, the positioning fixture further includes a component base plate 291, with the support component and the annular protrusion 242 connected to the component base plate 291 on the underside, and multiple universal rollers 292 connected to the underside of the component base plate 291.

[0076] Specifically, the universal rollers 292 facilitate the movement and positioning of the tooling.

[0077] Preferably, a storage box 293 is connected to the top of the component base plate 291.

[0078] Specifically, the storage box 293 has several slots inside to accommodate accessories.

[0079] The method of using this utility model is as follows:

[0080] In use, place the drone body 12 at the center of the work platform 111, then start the motor 16 to rotate the bidirectional lead screw 131. Through the threaded connection with the sliding clamp 14, the sliding clamp 14 is driven to move along the cylindrical slide bar 132, so that both the left and right sliding clamps 14 move closer to the drone body 12. When the rectangular slide bar 151 in the rectangular groove of the sliding clamp 14 contacts the outer surface of the drone body 12, it will be squeezed and slide, and squeeze the spring 153, reducing the gap between the drone body 12 and the sliding clamp 14, so that the sliding clamp 14 can better position the drone body 12.

[0081] Next, the user assembles the positioned drone body 12. When assembling the lower-level components, the second motor 28 can be started. The output of the second motor 28 drives the threaded screw 21 to rotate clockwise through two belt pulleys 271 and the transmission belt 272, which in turn drives the first bevel gear 221 to rotate. Through the meshing connection between the first bevel gear 221 and the second bevel gear 222, the second bevel gear 222 can be driven to rotate counterclockwise. When the second bevel gear 222 rotates counterclockwise, it will drive the bottom cylindrical screw 241 to rotate counterclockwise. The cylindrical screw 241 gradually unscrews from the inside of the annular protrusion 242, pushing the work platform 111 to move upward, adjusting the height of the work platform 111, and improving the comfort of the worker during assembly.

[0082] In the description of this utility model, it should be understood that if terms such as "front", "inside", "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are for illustrative purposes only and should not be construed as limiting this utility model.

[0083] The above examples are merely illustrative of this utility model and do not constitute a limitation on the scope of protection of this utility model. All designs that are the same as or similar to this utility model are within the scope of protection of this utility model.

Claims

1. A positioning tool for unmanned aerial vehicle assembly, characterized by: The utility model provides a positioning assembly (1) and lifting assembly (2) including, the positioning assembly (1) includes work platform (111), 2 sliding clamping plates (14) and a plurality of slide bars (151), 2 sliding clamping plates (14) are spaced apart and connected in the upper surface of work platform (111), and a plurality of slide bars (151) are connected on each sliding clamping plate (14), and the lower surface of work platform (111) is connected with lifting assembly (2).

2. The positioning tool for assembling the UAV as claimed in claim 1, wherein: The positioning assembly (1) further includes a bidirectional screw rod (131), the bidirectional screw rod (131) is connected to the front of the work platform (111), and the bidirectional screw rod (131) penetrates the front lower part of the two sliding clamping plates (14).

3. The positioning tool for assembling the UAV as claimed in claim 1, wherein: The positioning assembly (1) further includes a cylindrical slide bar (132), the cylindrical slide bar (132) is connected to the rear of the work platform (111), and the cylindrical slide bar (132) penetrates the rear lower part of the two sliding clamping plates (14).

4. The positioning tool for assembling the UAV as claimed in claim 1, wherein: The slide bar (151) is a rectangular slide bar.

5. The positioning tool for assembling the UAV as claimed in claim 1, wherein: The positioning assembly (1) further includes a limiting protrusion (152), the end of the slide bar (151) away from the sliding clamping plate (14) is connected with the limiting protrusion (152).

6. The positioning tool for assembling the UAV as claimed in claim 5, wherein: The positioning assembly (1) further includes a spring (153), the slide bar (151) between the sliding clamping plate (14) and the limiting protrusion (152) is sleeved with the spring (153), and the sliding clamping plate (14) and the limiting protrusion (152) are fixedly connected with the spring (153).

7. The positioning tool for assembling the UAV as claimed in claim 1, wherein: The lifting assembly (2) includes a threaded screw rod (21), a gear component, a belt pulley component, a cylindrical screw (241), a circular ring protrusion one (242), a plurality of support components and two fixed blocks, the left middle lower surface and the right middle lower surface of the work platform (111) are each provided with a fixed block, the threaded screw rod (21) is penetrated between the two fixed blocks, the left part of the threaded screw rod (21) is connected with the cylindrical screw (241) through the gear component, the cylindrical screw (241) is sleeved with the circular ring protrusion one (242), the right part of the threaded screw rod (21) is connected with the belt pulley component, and the lower surface of the work platform (111) is connected with the plurality of support components.

8. The positioning tool for assembling the UAV as claimed in claim 7, wherein: The gear component includes a bevel gear one (221) and a bevel gear two (222), the bevel gear one (221) is sleeved outside the left part of the threaded screw rod (21), the upper part of the cylindrical screw (241) is sleeved with the bevel gear two (222), and the bevel gear one (221) is connected with the bevel gear two (222) in meshing.

9. The positioning tool for assembling the UAV as claimed in claim 7, wherein: The belt pulley component includes two belt pulleys (271) and a transmission belt (272), the two belt pulleys (271) are distributed in front and back, the right part of the threaded screw rod (21) is sleeved in the rear belt pulley (271), and the transmission belt (272) is sleeved outside the two belt pulleys (271).

10. The positioning tool for assembling the UAV as claimed in claim 9, wherein: The lifting assembly (2) further includes a second motor (28), and the power output shaft of the second motor (28) is connected with the front belt pulley (271) of the two belt pulleys (271).

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