An auxiliary device for aircraft engine assembly

Abstract

This application relates to an auxiliary equipment for aircraft engine assembly, specifically within the technical field of aircraft engines. The auxiliary equipment includes a mounting base with a hook mechanism on it. Auxiliary stabilizing mechanisms are located on opposite sides of the hook mechanism. Each auxiliary stabilizing mechanism includes an extension arm, a push arm, and grippers. The extension arm is vertically oriented, the push arm is located at the lower end of the extension arm and is horizontally oriented, and the grippers are located at the end of the push arm facing the hook mechanism. The push arm includes a driving component capable of pushing the grippers horizontally. This application provides auxiliary clamping mechanisms on both sides of the hook mechanism, using the grippers to horizontally reinforce the parts lifted by the hook mechanism, thereby reducing the swaying of the lifted parts during installation.

Description

Technical Field

[0001] This application relates to the technical field of aircraft engines, and in particular to an aircraft engine assembly auxiliary device. Background Technology

[0002] An aircraft engine is a highly complex and precise thermodynamic machine. As the heart of an aircraft, it not only powers the aircraft's flight but also serves as a vital driving force for the development of the aviation industry. Every major transformation in the history of human aviation has been inseparable from the technological advancements in aircraft engines.

[0003] Currently, during the assembly of aero engines, due to their large size and heavy weight, it is generally necessary to use hoisting equipment to lift the parts, move them to the assembly location, and then assemble them. Existing hoisting equipment typically has a cable reel mechanism mounted on an overhead crane, with hooks below the reel mechanism to connect the parts. The overhead crane moves along the track, moving the parts, and the cable reel mechanism moves the hooks and parts up and down to complete the hoisting process.

[0004] In the hoisting process of aero-engines, vertical assembly refers to the installation of the aero-engine with its axis perpendicular to the horizontal plane. Vertical assembly is a typical assembly method for aero-engines, characterized by ease of alignment and simple process. After vertical assembly, the aero-engine needs to be flipped to a horizontal position for easy transportation and bench testing.

[0005] Regarding the aforementioned technologies, in the process of assembling aero engines using hoisting, since steel cables are often used for hoisting, the parts are prone to shaking during the alignment process, leading to inaccurate positioning. Summary of the Invention

[0006] This application provides an auxiliary device for assembling aircraft engines, the purpose of which is to reduce the shaking amplitude of aircraft engines during mutual positioning and installation, and to increase the accuracy of installation and positioning.

[0007] The technical solution of the aircraft engine assembly auxiliary equipment provided in this application is as follows:

[0008] An aircraft engine assembly auxiliary device includes a mounting base, on which a hook mechanism is provided. Auxiliary stabilizing mechanisms are provided on opposite sides of the hook mechanism. Each auxiliary stabilizing mechanism includes an extension arm, a push arm, and a gripper. The extension arm is vertically oriented, the push arm is located at the lower end of the extension arm and is horizontally oriented, and the gripper is located at the end of the push arm facing the hook mechanism. The push arm includes a driving component capable of pushing the gripper to move horizontally.

[0009] By adopting the above technical solution, the mounting base in this application serves two purposes: firstly, it connects with the overhead crane in the factory; secondly, it provides the main body for mounting the hook mechanism and auxiliary clamping mechanism. The hook mechanism located below the mounting base enables the lifting of various parts within the aero-engine. An auxiliary clamping mechanism is provided on both sides of the hook mechanism. The auxiliary clamping mechanism, through the extension arm, positions the grippers below the hook mechanism, and a push arm is positioned between the extension arm and the grippers. This push arm includes a drive component, allowing the grippers to move horizontally towards the hook mechanism under the action of the drive component.

[0010] Thus, through the cooperation of two auxiliary clamping structures, after the hook mechanism lifts the aero-engine parts, the two jaws are set on both sides of the parts in the horizontal direction, so that the parts can be positioned in the horizontal direction, reducing the shaking of the parts after being lifted.

[0011] Optionally, the hook mechanism includes a mounting plate disposed on the lower side of the mounting base, and a micro-rotation platform capable of driving the mounting plate to rotate is provided between the mounting plate and the mounting base.

[0012] By adopting the above technical solution, the mounting plate in the hook mechanism is used to install other parts of the hook mechanism, and a fine-tuning platform is set between the mounting plate and the mounting base. The fine-tuning platform drives the mounting plate to rotate, so that after the hook mechanism lifts the parts, the rotation of the fine-tuning platform can drive the parts to rotate, which facilitates the alignment of the parts with the mounting holes of the parts during the installation process.

[0013] Optionally, a positioning feedback mechanism is also included, which includes a laser sensor and an adjusting rod. The adjusting rod is slidably connected to the gripper, and the laser sensor is connected to the adjusting rod. The laser sensor is arranged vertically with its detection part facing downwards.

[0014] By adopting the above technical solution, the laser sensor in the positioning feedback mechanism is set vertically, and the detection part of the laser sensor is set vertically downward. So when the gripper clamps the part, the connecting rod slides on the gripper to make the detection part of the laser sensor aligned vertically with the mounting hole on the part. Therefore, the laser sensor can detect whether the mounting holes of the parts are aligned during the installation process of the hoisted parts, and thus can feed back information to the micro-rotation platform, so that the micro-rotation platform can drive the parts to align with the mounting holes of the parts.

[0015] Optionally, the adjusting link includes a sliding block, a connecting column, and a rotating rod. The connecting column is axially arranged in the vertical direction. The upper end of the connecting column is connected to the sliding block. The gripper has a sliding ring groove. The sliding block is inserted into the sliding ring groove and is slidably connected to the inner wall of the sliding ring groove.

[0016] The lower end of the connecting column is rotatably connected to the rotating rod, and the laser sensor is located at the end of the rotating rod away from the connecting column.

[0017] By adopting the above technical solution, in the adjusting connecting rod, the sliding block and the sliding ring groove cooperate to allow the sliding block to slide on the gripper, while the setting of the connecting column and the rotating rod allows the rotating rod to rotate around the connecting column as the central axis. Since the laser sensor is set on the rotating rod, the rotation, the setting of the connecting column and the sliding block enable the laser sensor to be adjusted in multiple directions, making it easy for the laser sensor to be aligned with the mounting holes on the suspended parts.

[0018] Optionally, a plurality of grippers are spaced apart in the vertical direction. Each gripper includes a gripping ring and an extension arm. The length direction of the extension arm is arranged along the length direction of the push arm, and both ends of the extension arm are respectively connected to the gripping ring and the push arm. A plurality of gripping rings are arranged coaxially and axially in the vertical direction.

[0019] By adopting the above technical solution, several grippers are arranged vertically, so that after the part is lifted, the grippers clamp different positions on the part, effectively preventing the part from slipping or rotating during the clamping process, thereby improving the clamping stability of the part. The extension arm is used to fix the clamping ring, and the clamping ring is designed to facilitate the clamping of cylindrical parts inside the aero-engine.

[0020] Optionally, the extension arm includes a support arm and a sliding arm. The support arm is slidably connected to the sliding arm along its own length direction. A retaining spring is provided between the support arm and the sliding arm. The retaining spring is axially along the length direction of the support arm, and both ends of the retaining spring are respectively connected to the support arm and the sliding arm.

[0021] By adopting the above technical solution, the extension arm includes a support arm and a sliding arm, with the sliding arm slidably connected to the support arm. A clamping spring is installed between the sliding arm and the support arm. Therefore, when the grippers hold a part, the clamping spring ensures that the gripping ring is pressed against the part, increasing clamping stability. Simultaneously, this arrangement of several grippers, when the gripped parts are arranged in a stepped pattern along their axial direction, allows the corresponding grippers to adapt to different diameters of the parts at different positions through the sliding between the sliding arm and the support arm, providing sufficient support while bearing the clamping force.

[0022] Optionally, the clamping ring includes a first ring and a second ring, which are arranged horizontally on both sides of the extension arm, and the ends of the first ring and the second ring that are close to each other are rotatably connected to the extension arm.

[0023] By adopting the above technical solution, the clamping ring includes a first ring and a second ring, both of which are connected to the extension arm. Thus, when the diameter of the clamped part is too large, the rotation of the first ring and the second ring allows the part to enter the clamping ring, thereby achieving clamping of the part.

[0024] Optionally, a first abutting elastic member is provided between the first ring and the extension arm, and the two ends of the first abutting elastic member are respectively rotatably connected to the first ring and the extension arm; a second abutting elastic member is provided between the second ring and the extension arm, and the two ends of the second abutting elastic member are respectively rotatably connected to the second ring and the extension arm.

[0025] By adopting the above technical solution, the first abutting elastic element, through its elastic deformation, can limit the rotation of the first ring. When the part enters the clamping ring, the first ring can press against the side wall of the part under the action of the first abutting elastic element, thereby increasing the stability of clamping the part. At the same time, the first abutting elastic element can also achieve automatic reset after the first ring rotates. The second abutting elastic element has the same function as the first abutting elastic element.

[0026] Optionally, the extendable arm includes a first arm and a second arm, which are slidably connected in a vertical direction. The upper end of the first arm is connected to the mounting base, and the lower end of the second arm is connected to the push arm. A lifting drive component capable of driving the second arm to move in a vertical direction is provided between the first arm and the second arm.

[0027] By adopting the above technical solution, the telescopic arm includes a first arm, a second arm, and a lifting and lowering drive component disposed between the first arm and the second arm. The first arm and the second arm are slidably connected in the vertical direction. Thus, the second arm can move in the vertical direction through the setting of the lifting and lowering drive component, thereby changing the position of the gripper to adapt to the hoisting of different parts.

[0028] Optionally, a fall protection assembly is provided between the first arm and the second arm. The fall protection assembly includes a first limiting plate and a second limiting plate. The first limiting plate is located on the side of the first arm facing the second arm, and the second limiting plate is located on the side of the second arm facing the first arm. The first limiting plate is located vertically directly below the second limiting plate.

[0029] By adopting the above technical solution, the first limiting plate and the second limiting plate in the fall arrestor are set facing each other in the vertical direction. On the one hand, when the first arm and the second arm slide in the vertical direction, the first limiting plate and the second limiting plate limit the sliding distance between the first arm and the second arm; on the other hand, when the second arm falls, the first limiting plate and the second limiting plate can support each other to prevent the second arm from falling directly.

[0030] In summary, this application includes at least one of the following beneficial technical effects:

[0031] 1. This application provides auxiliary clamping mechanisms on both sides of the hook mechanism. The clamps reinforce the parts lifted by the hook mechanism in the horizontal direction, thereby reducing the shaking of the lifted parts during the installation process.

[0032] 2. Through the cooperation of the micro-rotation platform and the feedback positioning mechanism, automatic rotation and positioning of the suspended parts can be achieved during the installation process.

[0033] 3. Through the structural design of the extension arm and clamping ring, the auxiliary clamping mechanism is able to clamp cylindrical parts of various diameters and cylindrical parts with stepped outer walls. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of the assembly auxiliary equipment in this application.

[0035] Figure 2 This is an exploded structural diagram of the hook mechanism in this application.

[0036] Figure 3 This is a schematic diagram of the overall structure of the hoisting box in this application.

[0037] Figure 4 This is a schematic diagram of the overall structure of the auxiliary stabilization mechanism in this application.

[0038] Figure 5 This is a schematic diagram of the exploded structure of the push arm in this application.

[0039] Figure 6 This is a schematic diagram of the overall structure of the gripper in this application.

[0040] Figure 7 This is a cross-sectional view of the gripper structure in this application.

[0041] Figure 8 This is a schematic diagram of the overall structure of the positioning feedback mechanism in this application.

[0042] Figure 9 yes Figure 8 A magnified schematic diagram of part A in the middle.

[0043] In the diagram, 1 represents the mounting base;

[0044] 2. Hook mechanism; 21. Mounting plate; 22. Micro-rotation platform; 23. Lifting box; 231. Drive shaft; 232. Lifting cable; 233. Lifting hook; 234. Lifting drive component;

[0045] 3. Auxiliary stabilizing mechanism; 31. Extending arm; 311. First arm; 312. Second arm; 313. Lifting drive component; 314. Anti-fall component; 3141. First limiting plate; 3142. Second limiting plate; 32. Push arm; 321. Guide column; 322. Guide groove; 323. Push column; 324. Push drive component; 325. Fixing plate; 33. Gripper; 331. Gripping ring; 3311. First ring; 3312. Second ring; 3313. First clamping elastic element; 3314. Second clamping elastic element; 332. Extension arm; 3321. Support arm; 3322. Sliding arm; 3323. Sliding groove; 3324. Clamping spring;

[0046] 4. Positioning feedback mechanism; 41. Laser sensor; 42. Adjusting link; 421. Sliding block; 422. Connecting column; 423. Rotating rod; 43. Sliding ring groove. Detailed Implementation

[0047] The following is in conjunction with the appendix Figure 1 - Appendix Figure 8 This application will be described in further detail below.

[0048] An auxiliary device for aircraft engine assembly, as shown in the reference. Figure 1 It includes a mounting base 1, the upper side of which is used to be fixedly connected to the crane, so that the crane can transport the entire assembly auxiliary equipment.

[0049] Reference Figure 1 and Figure 2 A hook mechanism 2 is provided on the lower side of the mounting base 1 along the vertical direction. The hook mechanism 2 includes a mounting plate 21, which is located below the mounting base 1. A micro-rotating platform 22 is provided between the mounting plate 21 and the mounting base 1. The lower side of the micro-rotating platform 22 is fixedly connected to the mounting plate. The micro-rotating platform 22 is a rotating platform formed by a rotary support and a servo motor. Thus, the mounting plate 21 can be rotated under the mounting base 1 through the setting of the micro-rotating platform 22. Therefore, during the process of lifting the aero-engine using the hook mechanism 2, the aero-engine parts can be rotated by the micro-rotating platform 22, which facilitates the alignment of the mounting holes between the parts.

[0050] Reference Figure 2 and Figure 3The hook mechanism 2 also includes a lifting box 23, inside which is a drive shaft 231. A lifting cable 232 is wound around the drive shaft 231, and a lifting hook 233 is located on the lower side of the drive shaft 231. The lifting cable 232 passes through the lifting hook 233. A lifting drive component 234 is installed on the lifting box 23. The lifting drive component 234 is an electrode-driven gearbox and is coaxially connected to the drive shaft 231. Thus, driven by the lifting drive component 234, the lifting hook 233 can rise or fall vertically to lift the parts of the aero-engine.

[0051] Reference Figure 1 and Figure 4 Two auxiliary stabilizing mechanisms 3 are also provided on the lower side of the mounting plate 21. These two auxiliary stabilizing mechanisms 3 are arranged horizontally on opposite sides of the hook mechanism 2. Each auxiliary stabilizing mechanism 3 includes an extension arm 31, which comprises a first arm 311 and a second arm 312. The first arm 311 and the second arm 312 are slidably connected vertically. Several lifting drive components 313 are provided between the first arm 311 and the second arm 312. These lifting drive components 313 are hydraulic cylinders and are arranged vertically. The upper end of each lifting drive component 313 is connected to the first arm 311, and the lower end is connected to the second arm 312. The upper end of the first arm 311 is fixedly connected to the mounting plate 21. Therefore, driven by the several lifting drive components 313, the second arm 312 can move vertically upwards and downwards.

[0052] Reference Figure 4 A fall arrestor 314 is also provided between the first arm 311 and the second arm 312. The fall arrestor 314 includes a first limiting plate 3141 and a second limiting plate 3142. The first limiting plate 3141 is located at the lower end of the first arm 311 and is positioned on the side of the first arm 311 facing the second arm 312. The second limiting plate 3142 is located at the upper end of the second arm 312 and is positioned on the side of the second arm 312 facing the first arm 311. The first limiting plate 3141 is vertically positioned directly below the second limiting plate 3142, and the first limiting plate 3141 and the second limiting plate 3142 are vertically opposite each other. Therefore, the fall arrestor 314 can limit the lifting and lowering movement of the second arm 312 and prevent the second arm 312 from falling off the first arm 311.

[0053] Reference Figure 4 and Figure 5The lower end of the second arm 312 is provided with a gripper 33, and the grippers 33 in the two auxiliary stabilizing mechanisms 3 are arranged opposite each other in the horizontal direction. A push arm 32 is also provided between the second arm 312 and the gripper 33. The push arm 32 includes a guide post 321, and a hook mechanism 2 is provided on one side of the guide post 321 along its length direction. A guide groove 322 is opened on one side of the guide post 321 along its length direction and passes through the guide post 321. The push arm 32 also includes a push post 323, and the length direction of the push post 323 is parallel to that of the guide post 321. The push column 323 and guide groove 322 are inserted into each other along the same length direction, and the push column 323 and the inner wall of the guide groove 322 are slidably connected along the length direction of the guide column 321. The side of the push column 323 facing the hook mechanism 2 is connected to the gripper 33. The push arm 32 also includes several push drive components 324, which are hydraulic cylinders. The push drive components 324 are arranged along the length direction of the guide column 321. One end of the push drive component 324 is connected to the second arm 312, and the other end is connected to the push column 323. Therefore, under the drive of the push drive component 324, the push arm 32 can drive the gripper 33 to move towards the hook mechanism 2. Thus, after the hook mechanism 2 lifts the parts of the aircraft engine, the gripper 33 in the two auxiliary stabilizing mechanisms 3 moves towards each other, which can clamp the parts and reduce the shaking of the parts during the lifting process.

[0054] Reference Figure 5 A fixing plate 325 is provided between the push column 323 and the gripper 33. The side of the fixing plate 325 facing away from the push column 323 is connected to the gripper 33. Several grippers 33 are arranged at intervals along the vertical direction. The cooperation of several grippers 33 can increase the stability of clamping.

[0055] Reference, 5 and Figure 6 The gripper 33 includes a gripping ring 331 and an extension arm 332. The extension arm 332 is mounted on the fixed plate 325, and its length direction is along the length direction of the push column 323. One end of the extension arm 332 is connected to the fixed plate 325 along its own length direction, and the other end is connected to the gripping ring 331. The axial direction of the gripping ring 331 is vertical. The gripping ring 331 can accommodate the cylindrical shell of the aero-engine parts, increasing the stability of the gripping.

[0056] Reference Figure 6The clamping ring 331 includes a first ring 3311 and a second ring 3312, which are connected to form a semi-circular ring. The ends of the first ring 3311 and the second ring 3312 that are close to each other are rotatably connected to the extension arm 332. A first abutting elastic member 3313 is provided between the first ring 3311 and the extension arm 332. Both ends of the first abutting elastic member 3313 are rotatably connected to the first ring 3311 between the extension arm 332. A second abutting elastic member 3314 is provided between the second ring 3312 and the extension arm 332. Both ends of the second abutting elastic member 3314 are rotatably connected to the second ring 3312 and the extension arm 332. Both the first abutting elastic member 3313 and the second abutting elastic member 3314 are dampers or shock absorbers composed of springs. Therefore, when the radial dimensions of the parts held by the gripper 33 are different, the rotation of the first ring 3311 and the second ring 3312 enables the first ring 3311 and the second ring 3312 to also grip the parts. At the same time, the cooperation of the first clamping elastic member 3313 and the second clamping elastic member 3314 can effectively increase the friction and lateral stability between the parts and the first ring 3311 and the second ring 3312, ensuring that the gripper 33 can firmly clamp workpieces of different diameters and prevent slippage or deformation during the clamping process.

[0057] Reference Figure 6 and Figure 7 The extension arm 332 includes a support arm 3321 and a sliding arm 3322. The support arm 3321 and the sliding arm 3322 are coaxially arranged. One end of the support arm 3321 is connected to the fixed plate 325, and the other end is slidably connected to the sliding arm 3322. The end of the sliding arm 3322 away from the support arm 3321 is rotatably connected to the first ring 3311 and the second ring 3312 respectively. A sliding groove 3323 is provided on the side of the support arm 3321 facing the sliding arm 3322. The sliding groove 3323 is opened along the length direction of the support arm 3321. The sliding arm 3322 is inserted into the sliding groove 3323 and is slidably connected to the inner wall of the sliding groove 3323. A retaining spring 3324 is provided in the sliding groove 3323. The retaining spring 3324 is axially arranged along the length direction of the sliding arm 3322, and both ends of the retaining spring 3324 are connected to the sliding arm 3322 and the inner wall of the sliding arm 3322 respectively. By setting up the support arm 3321 and the sliding arm 3322, the clamping ring 331 can slide along the length direction of the support arm 3321. At the same time, with the cooperation of the clamping spring 3324, the clamping ring 331 can be pressed against the clamped part. Therefore, when clamping the part, by setting up the extension arms 332 on several jaws 33, the clamping ring 331 can adapt to the diameter of the corresponding position on the clamped part, increasing the stability of clamping.

[0058] Reference Figure 1 and Figure 8 Two positioning feedback mechanisms 4 are provided on the lowest vertical gripper 33, respectively located on the first ring 3311 and the second ring 3312. Each positioning feedback mechanism 4 includes a laser sensor 41, which is vertically positioned with its detection part facing downwards. The positioning feedback mechanism 4 also includes an adjusting rod 42, one end of which is rotatably connected to either the first ring 3311 or the second ring 3312, and the other end is connected to the laser sensor 41. Therefore, by adjusting the rod 42, the position of the laser sensor 41 can be adjusted. After the gripper 33 clamps the part, when the laser sensor 41 is adjusted so that its detection part is aligned with the through hole for mounting on the part, the laser sensor 41 can drive the alignment of the mounting holes between the two parts, and then provide feedback to the micro-rotation platform 22 to achieve part alignment.

[0059] Reference Figure 8 and Figure 9 Both the first ring 3311 and the second ring 3312 have sliding ring grooves 43, with the openings of the sliding ring grooves 43 facing vertically downwards. The adjusting rod 42 includes a sliding block 421, a connecting post 422, and a rotating rod 423. The sliding block 421 is inserted into the sliding ring groove 43 and is slidably connected to the inner wall of the sliding ring groove 43. The lower side of the sliding block 421 is coaxially connected to the connecting post 422, which is axially arranged in the vertical direction. The lower end of the connecting post 422 is rotatably connected to the rotating rod 423. The laser sensor 41 is located at the end of the rotating rod 423 away from the connecting post 422. Through the cooperation of the sliding ring groove 43 and the adjusting rod 42, the position of the laser sensor 41 can be adjusted to ensure accurate feedback positioning.

[0060] The implementation principle of this application embodiment is as follows: First, the corresponding part is lifted by the lifting box 23 in the hook mechanism 2. Then, the extension arm 31 extends in the vertical direction and aligns the gripper 33 with the corresponding part. By pushing the drive member 324, the gripper 33 clamps the side wall of the part. At this time, the shaking of the part during the movement is significantly reduced.

[0061] Then, under the action of the crane, the hoisted parts are moved to the corresponding positions. Then, the laser sensor 41 is manually adjusted so that the detection part of the laser sensor 41 is aligned with the mounting hole of the part. Then, the part is slowly rotated by the rotation drive of the micro-rotation platform 22 until the laser sensor 41 passes through the mounting hole of the hoisted part and the mounting hole of the part on the ground at the same time. At this time, the parts are aligned with each other. The hoisting box 23 and the extension arm 31 descend at the same time until the two parts are aligned, and then the installation between the parts is completed.

[0062] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. An auxiliary device for assembling an aircraft engine, comprising a mounting base (1), characterized in that, The mounting base (1) is provided with a hook mechanism (2), and the hook mechanism (2) is provided with auxiliary stabilizing mechanisms (3) on both sides. The auxiliary stabilizing mechanism (3) includes an extension arm (31), a push arm (32), and a gripper (33). The extension arm (31) is arranged in a vertical direction. The push arm (32) is arranged at the lower end of the extension arm (31) and is arranged in a horizontal direction. The gripper (33) is arranged at one end of the push arm (32) facing the hook mechanism (2). The push arm (32) includes a push drive member (324) that can push the gripper (33) to move in a horizontal direction. The hook mechanism (2) includes a mounting plate (21), which is disposed on the lower side of the mounting base (1). A micro-rotating platform (22) capable of driving the mounting plate (21) to rotate is provided between the mounting plate (21) and the mounting base (1). The auxiliary equipment also includes a positioning feedback mechanism (4), which includes a laser sensor (41) and an adjusting rod (42). The adjusting rod (42) is slidably connected to the gripper (33). The laser sensor (41) is connected to the adjusting rod (42). The laser sensor (41) is arranged in a vertical direction and the detection part of the laser sensor (41) is arranged vertically downward. Align the detection part of the laser sensor (41) with the mounting hole of the part, and then slowly rotate the part by the rotation drive of the micro-rotating platform (22) until the laser sensor (41) passes through the mounting hole of the suspended part and the mounting hole of the part on the ground at the same time. At this time, the parts are aligned with each other, and the hoisting box and the extension arm (31) descend at the same time until the two parts are aligned, and then the installation between the parts is completed. The grippers (33) are arranged at intervals along the vertical direction. Each gripper (33) includes a gripping ring (331) and an extension arm (332). The length direction of the extension arm (332) is arranged along the length direction of the push arm (32), and both ends of the extension arm (332) are respectively connected to the gripping ring (331) and the push arm (32). The gripping rings (331) are arranged coaxially and axially along the vertical direction. The extension arm (332) includes a support arm (3321) and a sliding arm (3322). The support arm (3321) is slidably connected to the sliding arm (3322) along its own length direction. A retaining spring (3324) is provided between the support arm (3321) and the sliding arm (3322). The retaining spring (3324) is axially along the length direction of the support arm (3321), and both ends of the retaining spring (3324) are respectively connected to the support arm (3321) and the sliding arm (3322). The clamping ring (331) includes a first ring (3311) and a second ring (3312). The first ring (3311) and the second ring (3312) are arranged horizontally on both sides of the extension arm (332). The ends of the first ring (3311) and the second ring (3312) that are close to each other are rotatably connected to the extension arm (332). A first abutting elastic member (3313) is provided between the first ring (3311) and the extension arm (332), and the two ends of the first abutting elastic member (3313) are rotatably connected to the first ring (3311) and the extension arm (332) respectively. A second abutting elastic member (3314) is provided between the second ring (3312) and the extension arm (332), and the two ends of the second abutting elastic member (3314) are rotatably connected to the second ring (3312) and the extension arm (332) respectively.

2. The aero-engine assembly auxiliary equipment according to claim 1, characterized in that, The adjusting link (42) includes a sliding block (421), a connecting column (422), and a rotating rod (423). The connecting column (422) is axially arranged in the vertical direction. The upper end of the connecting column (422) is connected to the sliding block (421). The gripper (33) is provided with a sliding ring groove (43). The sliding block (421) is inserted into the sliding ring groove (43) and the sliding block (421) is slidably connected to the inner wall of the sliding ring groove (43). The lower end of the connecting post (422) is rotatably connected to the rotating rod (423), and the laser sensor (41) is located at the end of the rotating rod (423) away from the connecting post (422).

3. The aero-engine assembly auxiliary equipment according to claim 1, characterized in that, The extendable arm (31) includes a first arm (311) and a second arm (312). The first arm (311) and the second arm (312) are slidably connected in the vertical direction. The upper end of the first arm (311) is connected to the mounting base (1), and the lower end of the second arm (312) is connected to the push arm (32). A lifting drive (313) capable of driving the second arm (312) to move in the vertical direction is provided between the first arm (311) and the second arm (312).

4. The aero-engine assembly auxiliary equipment according to claim 3, characterized in that, A fall arrestor assembly (314) is provided between the first arm (311) and the second arm (312). The fall arrestor assembly (314) includes a first limiting plate (3141) and a second limiting plate (3142). The first limiting plate (3141) is located on the side of the first arm (311) facing the second arm (312), and the second limiting plate (3142) is located on the side of the second arm (312) facing the first arm (311). The first limiting plate (3141) is located vertically directly below the second limiting plate (3142).

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