Composite aircraft siding robot grinding process

The project has broken through the design and control of constant force floating execution unit (invention patent) for the thin wall weak rigidity, multi-curvature space surface, complex grinding process and micro-remaining (0.03mm) removal accuracy requirements of aircraft composite parts. Flexible adaptive tooling design and control (patent patent), grinding quality multi-parameter coupling control and other key technologies.

► Project Name: Composite aircraft siding robot polishing process

► Company Name: China Aviation Manufacturing Technology Research Institute

► Project implementation time: 2017.10-2018.12

► User Enterprise: China Aviation Manufacturing Technology Research Institute

► Innovative applications:

The project has broken through the design and control of constant force floating execution unit (invention patent) for the thin wall weak rigidity, multi-curvature space surface, complex grinding process and micro-remaining (0.03mm) removal accuracy requirements of aircraft composite parts. Flexible adaptive tooling design and control (patent patent), grinding quality multi-parameter coupling control and other key technologies. The constant force floating actuator has a normal and multi-degree of freedom swing angle function. The built-in sensor can sense the normal height and the swing angle of the grinding head in real time and dynamically adjust the robot pose to make the surface of the adaptive head of the grinding head polished. The unique control technology can achieve precise control of the contact time between the grinding head and the surface of the grinding head and the grinding force when grinding and grinding, avoiding over-grinding and under-grinding, achieving high-precision grinding; flexible adaptive quick-clamping tooling Quick positioning and clamping of parts with different curvatures. Combined with the robot system integration technology such as off-line programming and simulation, the high-quality automatic robot polishing of composite aircraft siding has contributed to the improvement of China’s aircraft manufacturing technology.