MULTIPLE RIVETING APPARATUS Russian patent published in 1995 - IPC

FIELD: assembling equipment. SUBSTANCE: apparatus has bracket with power cylinder and two yokes mounted on bracket. One yoke has punches self-adjustable through height and other yoke has supports associated with punches. Yoke with punches is fixed on free end of bracket and yoke with supports is mounted on power cylinder stem. Central punch and central support are spring- loaded one towards the other and are extending above peripheral punch and peripheral support, which are provided with self-adjustable compacting members. Each yoke is formed as body incorporating pistons. Piston cavities are communicated one with pneumatic system. Punches and supports are mounted on piston stems. Pistons for peripheral punches and supports as well as peripheral punches and supports themselves have channels for supplying air to compacting members. EFFECT: increased efficiency and high quality of riveting. 4 cl, 3 dwg