Angularly adjustable aircraft component support device

Abstract

The utility model provides an angle adjustable aviation spare parts support device relates to aviation spare parts support technical field, it includes interval adjusting subassembly, lift drive subassembly and attitude adjusting subassembly, interval adjusting subassembly includes bottom plate, sliding slot, bidirectional drive screw, adjusting sliding block and guide rail, bidirectional drive screw is worn in the sliding slot, the first end part of adjusting sliding block is helical connected with bidirectional drive screw, lift drive subassembly includes moving plate, driving part, lifting frame, guide rod and sleeve, the guide rail sliding connection of moving plate bottom and bottom plate second end, the telescopic end of driving part is connected with lifting frame bottom center, the utility model discloses the attitude adjusting subassembly of two level orthogonal setting's rotating frame body and drive mechanism cooperation, and the interval adjusting subassembly that bidirectional drive screw and adjusting sliding block constitute, can adapt to the aviation spare parts of complex curved surface, realizes the multi -freedom degree, high rigidity, large -area steady and self -adaptation locking of aviation spare parts.

Description

Technical Field

[0001] This utility model relates to the field of aviation component support technology, specifically to an aviation component support device with adjustable angle. Background Technology

[0002] In the field of aviation maintenance, support devices are crucial auxiliary tooling that ensures the safe, stable, and precise positioning of large or complex components such as wing skin, tail components, and engine blades during disassembly, inspection, calibration, and repair. Their core function is to provide reliable and stable support for the components to be repaired, resisting the component's own weight and any additional loads that may be generated during maintenance operations, ensuring the smooth progress of maintenance work and preventing damage to the components.

[0003] Currently, the support devices commonly found in aircraft maintenance workshops are mostly simple fixed platforms or height-adjustable bracket structures with a fixed support surface. These types of support devices exhibit significant limitations when dealing with typical aircraft components with complex curved surfaces or specific mounting angles. When supporting wing sections with inherent aerodynamic shapes or tail components with mounting angles, their fixed planes are difficult to match with the lower surface contours of the components, resulting in a lack of surface contact. The actual contact often degenerates into unstable local point contact or line contact, drastically reducing the effective support area. This causes the component's weight to concentrate on a few contact points, easily leading to localized stress concentration and indentation damage, and resulting in extremely poor overall support stability. When maintenance personnel perform operations such as fastener removal and installation, flaw detection, or component adjustment, the external forces applied to the components can easily cause them to slide, warp, or even overturn on the support surface, posing a high risk of accidental falls and seriously threatening operational safety and maintenance accuracy.

[0004] CN112963680B discloses an adaptive support mechanism for aircraft engines. This mechanism adjusts the length of the driving component to change the angle of the support component, increasing the contact points with the engine casing and providing vertical and horizontal support to adapt to different engine types. However, its structure is relatively complex, and the adjustment logic relies on the coordinated control of multiple driving components, making precise, stable, and self-locking attitude adjustment difficult. CN221569908U discloses an adjustable-angle aviation aluminum alloy bracket. By setting up a lifting mechanism and an adjustment mechanism, it can adjust the height and angle of the fixed frame. While achieving basic tilt adjustment, its adjustment dimension is limited, making it difficult to meet the adaptation requirements of complex attitudes of aviation components in three-dimensional space. Therefore, it is necessary to propose an adjustable-angle support device for aviation components. Utility Model Content

[0005] To address the shortcomings of the existing technology, the present invention aims to provide an adjustable-angle support device for aerospace components. By integrating an attitude adjustment component consisting of a two-stage orthogonal rotating frame and a drive mechanism, the support plate achieves high rigidity and self-locking precision angle adaptation to complex curved surfaces. In conjunction with a bidirectional lead screw driven spacing adjustment component, a lifting drive component, and vacuum adsorption, it can collaboratively complete a wide range of coarse adjustments to the support point and omnidirectional adaptive and stable locking of the components, effectively improving the safety and reliability of aerospace component support.

[0006] This utility model provides an adjustable-angle support device for aerospace components, including a spacing adjustment assembly, a lifting drive assembly, and an attitude adjustment assembly. The spacing adjustment assembly includes a base plate, a slide groove, a bidirectional drive screw, an adjusting slider, and a guide rail. A slide groove is formed on the first side of the base plate, and the bidirectional drive screw passes through the slide groove. The first end of the bidirectional drive screw is rotatably connected to the first end of the base plate. The first end of the adjusting slider is helically connected to the bidirectional drive screw, and the bottom of the adjusting slider is embedded in the slide groove, with the adjusting slider slidably connected to the slide groove. The lifting drive assembly includes a moving plate, a drive component, a lifting frame, a guide rod, and a sleeve. The bottom of the moving plate is connected to the second end of the adjusting slider, and the bottom of the moving plate is slidably connected to the guide rail at the second end of the base plate. The cylinder end of the moving component is vertically positioned in the middle of the moving plate. The telescopic end of the driving component is connected to the center of the bottom of the lifting frame. Guide rods are evenly distributed at the four corners of the moving plate. The first end of the sleeve is fitted onto the guide rod and the sleeve is slidably connected to the guide rod. The second end of the sleeve is connected to the lifting frame. The attitude adjustment assembly includes a second frame, a first rotating shaft, a driving seat, a linkage frame, a first frame, and a support plate. The driving seat is symmetrically arranged on the lifting frame. The two ends of the first rotating shaft are rotatably connected to the top of the driving seat. The bottom of the second frame is connected to the middle of the first rotating shaft. The linkage frame is connected to the top of the second frame through connecting rods on both sides below it. The two ends of the first frame are rotatably connected to the top sides of the linkage frame through the second rotating shaft. The support plate is connected to the top of the first frame.

[0007] Preferably, both the drive base and the linkage frame are equipped with a drive mechanism. The drive mechanism includes a worm wheel, a worm, and a rotating rod. The worm wheel is sleeved on the end of the first rotating shaft. The worm meshes with the worm wheel for transmission. Both ends of the worm are rotatably connected to the drive base. The rotating rod is connected to the end of the worm.

[0008] Preferably, the support plate is equipped with a vacuum suction cup and a vacuum generator. The vacuum suction cup is located at the center of the support plate, and the vacuum generator is located at the bottom of the support plate. The air extraction port of the vacuum generator is connected to the air passage of the vacuum suction cup through a hose.

[0009] Preferably, the first axis of rotation in the attitude adjustment assembly is perpendicular to the second axis of rotation.

[0010] Preferably, the second end of the bidirectional drive screw extends to the outside of the base plate and is connected to the rocker arm in the pitch adjustment assembly.

[0011] Preferably, the bidirectional drive screw is fitted with two sets of adjusting sliders with oppositely oriented threads.

[0012] Compared with the prior art, the beneficial effects of this utility model are reflected in: This utility model relates to an adjustable-angle aviation component support device. Through a two-stage orthogonally arranged rotating frame and a drive mechanism, the attitude adjustment component adjusts the angle of the support plate, enabling the support plate to precisely adapt to the complex surface morphology of the aviation component, achieving multi-degree-of-freedom, high rigidity, large-area stable fit and adaptive locking.

[0013] This utility model relates to an adjustable-angle aviation component support device. Through a spacing adjustment component consisting of a bidirectional drive screw and an adjusting slider, and in conjunction with a lifting drive component, it can quickly adjust the horizontal spacing and vertical height of the support plate to adapt to the macroscopic size and contour of the component. Furthermore, it achieves all-round adsorption and self-adaptive stable support of the component through a vacuum suction cup. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the adjustable-angle aviation component support device of this utility model; Figure 2 This is a schematic diagram of the structure of the mid-gap adjustment component and the lifting drive component of this utility model. Figure 3 This is a schematic diagram of the attitude adjustment component in this utility model; Figure 4 This is a schematic diagram of the drive mechanism in the drive seat of this utility model; Figure 5 This is a schematic diagram of the drive mechanism in the linkage frame of this utility model.

[0015] Figure label: 1. Base plate; 2. Lifting drive assembly; 21. Support plate; 22. Lifting frame; 23. Sleeve; 24. Guide rod; 25. Moving plate; 26. Drive component; 27. Vacuum generator; 28. Vacuum suction cup; 29. ​​First frame; 210. Linkage frame; 211. Second frame; 212. Drive seat; 213. First rotating shaft; 214. Rotating rod; 215. Worm gear; 216. Worm wheel; 3. Slide groove; 4. Adjusting slider; 5. Crank handle; 6. Guide rail; 7. Bidirectional drive screw. Detailed Implementation

[0016] The embodiments of this utility model will now be described with reference to the accompanying drawings.

[0017] This utility model relates to an adjustable-angle support device for aerospace components, such as... Figure 1 As shown, the assembly includes a spacing adjustment component, a lifting drive component, and a posture adjustment component. The spacing adjustment component includes a base plate 1, a slide groove 3, a bidirectional drive screw 7, an adjusting slider 4, and a guide rail 6. The first side of the base plate 1 has a slide groove 3. The bidirectional drive screw 7 passes through the slide groove 3. The first end of the bidirectional drive screw 7 is rotatably connected to the first end of the base plate 1. Two sets of adjusting sliders 4 with oppositely oriented threads are fitted on the bidirectional drive screw 7. The first end of the adjusting slider 4 is helically connected to the bidirectional drive screw 7. The second end of the bidirectional drive screw 7 extends to the outside of the base plate 1 and is connected to the crank 5 in the spacing adjustment component. The bottom of the adjusting slider 4 is embedded in the slide groove 3, and the adjusting slider 4 is slidably connected to the slide groove 3.

[0018] like Figure 2 As shown, the lifting drive assembly 2 includes a movable plate 25, a drive component 26, a lifting frame 22, a guide rod 24, and a sleeve 23. The bottom of the movable plate 25 is connected to the second end of the adjusting slider 4, and the bottom of the movable plate 25 is slidably connected to the guide rail 6 at the second end of the base plate 1. The cylinder end of the drive component 26 is vertically set in the middle of the movable plate 25, and the telescopic end of the drive component 26 is connected to the center of the bottom of the lifting frame 22. The guide rods 24 are evenly arranged at the four corners of the movable plate 25. The first end of the sleeve 23 is sleeved on the guide rod 24 and the sleeve 23 is slidably connected to the guide rod 24. The second end of the sleeve 23 is connected to the lifting frame 22. A vacuum suction cup 28 and a vacuum generator 27 are provided on the support plate 21. The vacuum suction cup 28 is located at the center of the support plate 21, and the vacuum generator 27 is located at the bottom end of the support plate 21. The air extraction port of the vacuum generator 27 is connected to the air passage of the vacuum suction cup 28 through a hose.

[0019] like Figure 3 and Figure 4 As shown, the attitude adjustment assembly includes a second frame 211, a first rotating shaft 213, a drive seat 212, a linkage frame 210, a first frame 29, and a support plate 21. The drive seat 212 is symmetrically arranged on the lifting frame 22. The two ends of the first rotating shaft 213 are rotatably connected to the top of the drive seat 212. The bottom of the second frame 211 is connected to the middle of the first rotating shaft 213. The linkage frame 210 is connected to the top of the second frame 211 through connecting rods on both sides below it. The two ends of the first frame 29 are rotatably connected to the top sides of the linkage frame 210 through the second rotating shaft. The axis of the first rotating shaft 213 is perpendicular to the axis of the second rotating shaft. The support plate 21 is connected to the top of the first frame 29.

[0020] like Figure 5As shown, both the drive base 212 and the linkage frame 210 are equipped with drive mechanisms. The drive mechanism includes a worm wheel 216, a worm 215 and a rotating rod 214. The worm wheel 216 is sleeved on the end of the first rotating shaft 213. The worm 215 meshes with the worm wheel 216 for transmission. Both ends of the worm 215 are rotatably connected to the drive base 212. The rotating rod 214 is connected to the end of the worm 215.

[0021] The following description, in conjunction with embodiments, further illustrates the adjustable-angle support device for aerospace components of this invention: This utility model combines rigid support with adsorption fixation through the cooperation of a spacing adjustment component, a lifting drive component 2, and an attitude adjustment component. It can adapt to aerospace components of different sizes, shapes, and attitudes, and achieve stable and safe support with large area, high rigidity, and anti-slip properties. Specifically, it includes the following four steps: Horizontal spacing coarse adjustment → Vertical height preset → Spatial attitude fine adjustment → Vacuum adsorption locking Step 1: Initial spacing coarse adjustment to adapt to the macroscopic span of the components. Depending on the size of the part to be repaired, rotate the crank handle 5 mounted on the side of the base plate 1. The crank handle 5 drives the bidirectional drive screw 7 to rotate within the slide groove 3. Since the two threads on the bidirectional drive screw 7 rotate in opposite directions, the two adjusting sliders 4 meshing with it produce synchronous opposite or backward linear movements under the constraint of the slide groove 3.

[0022] The movement of the adjusting slider 4 is converted into the horizontal movement of the two sets of lifting drive components 2. The distance between the two adjusting sliders 4 is adjusted to be slightly wider than the preparatory position of the component attitude adjustment component. The lateral distance between the two support units is adjusted to match the overall width of the component and the distance between the attitude adjustment components.

[0023] Step 2: Preset independent height, corresponding to the height profile of the component. Assess the required height of each attitude adjustment component of the part, and activate the drive unit 26 below the two support units respectively. The telescopic end of the drive unit 26 pushes or pulls the lifting frame 22 to make vertical movement. The sleeves 23 fixed at the four corners of the lifting frame 22 slide along the four guide rods 24 vertically fixed on the moving plate 25. By independently controlling the support plate 21 to the working height, a basic support plane matching the contour of the lower surface of the part is formed, realizing the independent lifting and lowering of the two attitude adjustment components to initially adapt to the height difference of the part surface.

[0024] Step 3: Precise posture adaptation to fit complex spatial planes Tilt adjustment around the transverse axis: Rotate the first rotating rod 214 mounted on the drive seat 212, the worm 215 drives the worm wheel 216, the worm wheel 216 is fixedly connected to the first rotating shaft 213 and the second frame 211, which is converted into a precise and slow rotation of the second frame 211 around the transverse axis. Through the reverse self-locking characteristic of the worm wheel and worm pair, it is ensured that the angle is locked after the adjustment is in place.

[0025] Tilting adjustment around the longitudinal axis: Rotating the second rotating rod 214 installed on the side of the linkage frame 210 drives the worm gear pair integrated inside the linkage frame 210, driving the first frame 29 and the support plate 21 to rotate around the longitudinal axis relative to the linkage frame 210. Since the linkage frame 210 is fixed to the first frame 29 through the connecting rod, the spatial posture of the support plate 21 is the result of the synthesis of two rotational motions around the transverse axis and the longitudinal axis, which can accurately match any spatial inclined plane. Through the two-stage worm gear mechanism with self-locking function, the micron-level spatial angle of the support plate 21 can be finely adjusted.

[0026] Step 4: Vacuum adsorption fixation The aerospace component is gently placed on two pre-adjusted support plates 21. The anti-slip rubber pads on the surface of the support plates 21 provide initial static friction. At this point, the orientation is observed and fine-tuned to maximize the contact area. The vacuum generator 27, installed below the support plates 21, is activated. Air is rapidly evacuated from the vacuum suction cups 28 via a connecting hose, creating a stable high negative pressure zone between the vacuum suction cups 28 and the component surface. The resulting strong suction force adheres the component to the support plates 21. The suction force, the friction of the rubber pads, and the supporting structure's load-bearing capacity are coupled in multiple dimensions to achieve a composite fixation of rigid positioning, flexible fit, and active adsorption.

[0027] This utility model relates to an adjustable-angle aviation component support device. By integrating an attitude adjustment component consisting of a two-stage orthogonal rotating frame and a drive mechanism, it achieves high rigidity and self-locking precision angle adaptation of the support plate 21 to complex curved surfaces. In conjunction with the bidirectional lead screw driven spacing adjustment component, the lifting drive component 2, and vacuum adsorption, it can collaboratively complete a wide range of coarse position adjustments of the support point and all-round adaptive and stable locking of the components, effectively improving the safety and reliability of aviation component support.

[0028] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Any modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. An adjustable-angle support device for aerospace components, characterized in that: Includes a spacing adjustment component, a lifting drive component, and an attitude adjustment component. The spacing adjustment assembly includes a base plate, a slide groove, a bidirectional drive screw, an adjusting slider, and a guide rail. The base plate has a slide groove on its first side. The bidirectional drive screw passes through the slide groove and is rotatably connected to the first end of the base plate. The first end of the adjusting slider is helically connected to the bidirectional drive screw. The bottom of the adjusting slider is embedded in the slide groove and is slidably connected to the slide groove. The lifting drive assembly includes a movable plate, a drive component, a lifting frame, guide rods, and a sleeve. The bottom of the movable plate is connected to the second end of the adjusting slider, and the bottom of the movable plate is slidably connected to the guide rail at the second end of the base plate. The cylinder end of the drive component is vertically positioned in the middle of the movable plate, and the telescopic end of the drive component is connected to the center of the bottom of the lifting frame. The guide rods are evenly distributed at the four corners of the movable plate. The first end of the sleeve is fitted onto the guide rod and is slidably connected to the guide rod. The second end of the sleeve is connected to the lifting frame. The attitude adjustment assembly includes a second frame, a first rotating shaft, a drive seat, a linkage frame, and a support plate. The drive seat is symmetrically arranged on the lifting frame. The two ends of the first rotating shaft are rotatably connected to the top of the drive seat. The bottom of the second frame is connected to the middle of the first rotating shaft. The linkage frame is connected to the top of the second frame through connecting rods on both sides below it. The two ends of the first frame are rotatably connected to the top sides of the linkage frame through the second rotating shaft. The support plate is connected to the top of the first frame.

2. The adjustable-angle aircraft component support device according to claim 1, characterized in that: Both the drive base and the linkage frame are equipped with a drive mechanism, which includes a worm wheel, a worm, and a rotating rod. The worm wheel is sleeved on the end of the first rotating shaft, and the worm meshes with the worm wheel for transmission. Both ends of the worm are rotatably connected to the drive base, and the rotating rod is connected to the end of the worm.

3. The adjustable-angle aircraft component support device according to claim 1, characterized in that: The support plate is equipped with a vacuum suction cup and a vacuum generator. The vacuum suction cup is located in the center of the support plate, and the vacuum generator is located at the bottom of the support plate. The air extraction port of the vacuum generator is connected to the air passage of the vacuum suction cup through a hose.

4. The adjustable-angle aircraft component support device according to claim 1, characterized in that: In the attitude adjustment assembly, the first axis of rotation is perpendicular to the second axis of rotation.

5. The adjustable-angle aircraft component support device according to claim 1, characterized in that: The second end of the bidirectional drive screw extends to the outside of the base plate and is connected to the rocker arm in the pitch adjustment assembly.

6. The adjustable-angle aircraft component support device according to claim 1, characterized in that: The bidirectional drive screw is fitted with two sets of adjusting sliders with oppositely oriented threads.

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