Design And Research Of Automatic Squeegee Equipment For Thin-wall Wings

The tightness of the wing has a very important impact on the flight performance of the aircraft and the personal safety of the pilot.Therefore,the aircraft manufacturing industry has high requirements for the scraping quality of wing components.However,due to the thin-wall characteristics and special-shaped features of the wing,it is not conducive to automation.At present,the scraping of the wing panel parts in China is still done manually.The quality of the scraping depends more on the work experience of the workers and is extremely inefficient.The thesis designs and researches an automatic glue scraping equipment for thin-walled wing parts,with a view to realizing the automation of thin-walled wing scraping operations.It is of great significance for China’s aircraft parts manufacturing industry to continue to move towards automated production.The main contents of the thesis are as follows:1.Based on the existing manual squeegee technology,the working mechanism of the automatic squeegee equipment for thin-walled wing parts is studied,and the function of the equipment is decomposed by using the Modular design method,and the whole equipment is divided into modules,the overall scheme of the auto-scraping equipment for thin-walled wing parts is determined.2.Design the specific structure of each module based on functional and technological requirements.From the comparison of structural schemes,the choice of transmission methods,and the design of the positioning / support unit and the XY plane unit transmission mechanism,the structure of the flexible tooling fixture is determined;the appropriate rubber scraping robot is selected according to the actual working conditions,and the corresponding guide rail is designed Move the platform to complete the robot scraping movement;design the glue mixing mechanism and related structures according to the characteristics of AB glue,and provide an ideal glue supply environment for the glue scraping operation.3.Combine each module,analyze the influencing factors of the scraping quality of the equipment,and optimize the layout of the positioning points of the thin-walled parts of the wing to minimize the clamping deformation of the parts.Based on the particle swarm optimization algorithm,the thin-walled wing joints of MATLAB and ANSYS can be used to simulate the optimal positioning point layout efficiently.The clamping deformation control of thin-walled parts can greatly improve the scraping quality within the required range.The characteristics of the universal suction cup determine that the coordinates of the specific clamping and positioning points of the thin-walled parts need to be calculated,and matrix conversion is also required for the convenience of servo control.4.Perform static analysis and modal analysis on key components and assemblies of automatic scraper equipment for thin-walled wing parts,and use ANSYS WORKBENCH software and finite element method to verify the reliability of component structures and assemblies Reasonable structure for optimization.