CN-121974247-A - Automatic butt-joint assembly system of large bypass ratio aeroengine

CN121974247ACN 121974247 ACN121974247 ACN 121974247ACN-121974247-A

Abstract

The invention discloses an automatic butt-joint assembly system of an aeroengine with a large bypass ratio, which relates to the technical field of aeroengine assembly and comprises a six-degree-of-freedom platform module, a winch module, a precise attitude adjustment module, a traveling crane trolley module and a binocular vision detection system, wherein the traveling crane trolley module is arranged above a steel rail through a bearing wheel and a driving wheel, the two ends of the lower part of the traveling crane trolley module are connected with the precise attitude adjustment module through hinges, the precise attitude adjustment module is connected with the winch module through a linear guide rail, the winch module is connected with a six-degree-of-freedom platform static platform through a steel wire rope, the six-degree-of-freedom platform dynamic platform is connected with a product to be butt-jointed through a tool, the traveling crane trolley module and the winch module are coarse adjustment mechanisms, the precise attitude adjustment module and the six-degree-of-freedom platform module are precise adjustment mechanisms, and the binocular vision detection system is a detection feedback module. The invention solves the problems of insufficient positioning precision, large error accumulation and the like of the existing industrial robot and laser guide system in the butt joint assembly of the large bypass ratio aero-engine, and realizes the automatic butt joint assembly with high precision, high stability and high suitability.

Inventors

SHAO QI
CAO HONGFANG
DU XUEBIAO
ZHANG BINGWU
DU XINZHENG
Lai Libo
ZHU JIANTAO

Assignees

杭州国辰正域科技有限公司

Dates

Publication Date: 20260505
Application Date: 20260203

Claims (10)

1. The automatic butt joint assembly system for the large-bypass-ratio aeroengine is characterized by comprising a six-degree-of-freedom platform module, a winch module, a precise attitude adjustment module, a traveling crane trolley module and a binocular vision detection system, wherein the traveling crane trolley module is arranged above a steel rail through a bearing wheel and a driving wheel, two ends of the lower part of the traveling crane trolley module are connected with the precise attitude adjustment module through hinges, the precise attitude adjustment module is connected with the winch module through a linear guide rail, the winch module is connected with a six-degree-of-freedom platform static platform through a steel wire rope, a six-degree-of-freedom platform moving platform is connected with a product to be butted through a tool, the traveling crane trolley module and the winch module are coarse adjustment mechanisms, the precise attitude adjustment module and the six-degree-of-freedom platform module are precise adjustment mechanisms, and the binocular vision detection system is a detection feedback module.
2. The automatic docking assembly system of the large bypass ratio aeroengine according to claim 1, wherein the traveling crane trolley module drives the precise attitude adjusting module, the winch module, the six-degree-of-freedom platform module and the product to be docked to move along the steel rail through driving wheels, so that the transportation of the product and the large-scale adjustment in the horizontal direction are realized.
3. The automatic docking assembly system of the large-bypass-ratio aeroengine according to claim 1, wherein the precise gesture adjusting module can provide three degrees of freedom of pitching motion, yawing motion and guide rail linear motion, wherein the pitching motion and the yawing motion are used for adjusting the central axis of the guide rail linear motion, and the winch module, the six-degree-of-freedom platform module and a product to be docked are driven to advance and retreat through the linear guide rail, so that the absolute positioning precision of a docking process is improved, and the spatial parallelism between the motion axis of the linear guide rail and the central axis of the fan case unit body is ensured.
4. The automatic docking assembly system of the large bypass ratio aeroengine according to claim 1, wherein the winch module drives the six-degree-of-freedom platform module and the product to be docked to move up and down through a steel wire rope, so that the product is transported and adjusted in a large range in the vertical direction.
5. The automatic docking and assembling system of the large bypass ratio aeroengine according to claim 1, wherein the six-degree-of-freedom platform module adjusts six postures of central axes of the core engine unit body and the low vortex unit body through six degrees of freedom, so that coaxiality adjustment of the fan casing unit body, the core engine unit body and the low vortex unit body is realized.
6. The high bypass ratio aircraft engine automatic docking assembly system of claim 1, wherein the binocular vision detection system detects coaxiality deviation of a core engine unit body, a low vortex unit body and a central axis of a fan casing unit body and spatial parallelism deviation of a linear guide rail movement axis and the central axis of the fan casing unit body through a high refresh rate, and provides closed-loop control data support for a coarse adjustment and fine adjustment system.
7. The automatic docking assembly system of the large bypass ratio aeroengine according to claim 1, wherein the product to be docked comprises a core machine unit body and a low vortex unit body, and the six-degree-of-freedom platform moving platform is connected with the core machine unit body and the low vortex unit body through a tool.
8. The automatic docking assembly system of the large bypass ratio aero-engine according to claim 1, wherein the automatic docking assembly of the large bypass ratio and the small bypass ratio aero-engines of different models is adapted by changing the tool specification below the six-degree-of-freedom platform moving platform.
9. The automatic docking assembly system of the large bypass ratio aeroengine according to claim 1, wherein the precise gesture adjusting module is used for fine adjustment based on the deviation of the spatial parallelism of the motion axis of the linear guide rail and the central axis of the fan casing unit body detected by the binocular vision detection system before a product to be docked enters docking, and then fine adjustment of the coaxiality of the product to be docked and the central axis of the fan casing unit body is achieved through the six-degree-of-freedom platform module.
10. The automatic docking assembly system of the large bypass ratio aeroengine according to any one of claims 1 to 9, wherein during the docking assembly process, the binocular vision detection system refreshes at high frequency, dynamically tracks and detects the coaxiality of the fan case unit body and the central axis of the product to be docked, the deviation data are synchronized to the relevant execution system in real time, and the docking is stopped when the deviation is out of tolerance.

Description

Automatic butt-joint assembly system of large bypass ratio aeroengine Technical Field The invention relates to the technical field of aero-engine assembly, in particular to an automatic butt-joint assembly system of a large bypass ratio aero-engine. Background In the assembly process of the aeroengine, the butt joint assembly of the large bypass ratio aeroengine is one of key links. In the prior art, an industrial robot and a laser guiding system are generally adopted for butt joint assembly, but the system has the obvious defects of insufficient positioning precision, poor terminal rigidity, small load capacity, large error accumulation, difficulty in supporting the butt joint requirement of a large bypass ratio model, serious influence on assembly efficiency and assembly quality and incapability of meeting the requirement of high-precision assembly of an aeroengine. Disclosure of Invention The invention aims to overcome the defects of the prior art, and provides an automatic butt joint assembly system of a large-bypass-ratio aeroengine, so as to solve the problems of insufficient positioning precision, large error accumulation and the like in the butt joint assembly of the large-bypass-ratio aeroengine of the existing industrial robot and laser guide system, and realize the automatic butt joint assembly with high precision, high stability and high suitability. In order to solve the problems, the technical scheme provided by the invention is as follows: The automatic butt joint assembly system for the large-bypass-ratio aeroengine comprises a six-degree-of-freedom platform module, a winch module, a precise attitude adjustment module, a traveling crane trolley module and a binocular vision detection system, wherein the traveling crane trolley module is arranged above a steel rail through a bearing wheel and a driving wheel, two ends of the lower portion of the traveling crane trolley module are connected with the precise attitude adjustment module through hinges, the precise attitude adjustment module is connected with the winch module through a linear guide rail, the winch module is connected with a six-degree-of-freedom platform static platform through a steel wire rope, the six-degree-of-freedom platform moving platform is connected with a product to be butted through a tool, the traveling crane trolley module and the winch module are coarse adjustment mechanisms, the precise attitude adjustment module and the six-degree-of-freedom platform module are precise adjustment mechanisms, and the binocular vision detection system is a detection feedback module. The whole composition of the automatic butt-joint assembly system of the large bypass ratio aeroengine and the connection relation of the modules are clear, and a complete butt-joint assembly technical frame is constructed by dividing the system into a coarse adjusting mechanism, a fine adjusting mechanism and a detection feedback module. The crane trolley module and the winch module realize large-range rough adjustment, provide basic position guarantee for butt joint, the precise attitude adjustment module and the six-degree-of-freedom platform module realize high-precision fine adjustment, ensure the butt joint precision, and the binocular vision detection system provides real-time detection feedback to realize cooperative work of the modules, so that the problems of insufficient positioning precision and large error accumulation in the prior art are jointly solved, and the automatic butt joint requirement of all units of the large-bypass-ratio aeroengine is met. Optionally, the crane trolley module drives the precise attitude adjusting module, the winch module, the six-freedom-degree platform module and the product to be docked to move along the steel rail through the driving wheels, so that the transportation of the product and the large-scale adjustment in the horizontal direction are realized. The clear crane trolley module serves as a core function of the coarse adjusting mechanism, and the product to be docked moves along the steel rail by driving the relevant module, so that the product is transported in a large range in the horizontal direction and is adjusted in position, the product to be docked is transported from an initial position to a rough area close to a docking target rapidly, the adjusting stroke of a subsequent fine adjusting mechanism is reduced, the overall docking assembly efficiency is improved, and a foundation is laid for subsequent high-precision docking. Optionally, the precise gesture adjusting module can provide three degrees of freedom of pitching motion, yawing motion and guide rail linear motion, wherein the pitching motion and the yawing motion are used for adjusting the central axis of the guide rail linear motion, and the linear guide rail drives the winch module, the six-degree-of-freedom platform module and the product to be docked to advance and retreat, so that the absolute positioning accuracy of the docking pro