Research on Servo Sealant Applying Method for Fastener Hole
ZHANG Yilian 1 , FAN Yunfei 2
( 1. Shanghai Top Numerical Control Technology Co., Ltd., Shanghai 201108, China; 2. School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China )
Abstract：High viscosity sealant is widely used in the field of aviation, because of its poor liquidity and high viscosity, it is difficult to realize automatic sealant applying. Especially for sealant applying on fastener holes, the sealant dosage is strictly controlled. Automatic pneumatic sealant is widely used in the field of automatic drilling and riveting, but the sealant dosage can not be controlled accurately and constantly. So the research on automatic precision sealant applying is necessary. This paper proposed a new method of using servo driving cylinder for sealant applying. It is found that compared with pneumatic control, servo control can guarantee sealant application quantity stably and accurately, and the advantage can be maintained in a certain period of time.
2020, 
