REPLACEABLE HEAD MULTI-SPINDLE FASTENING APPARATUS

摘要

A replaceable head type multi-spindle fastening apparatus wherein each fastening head is provided with plural driven shafts each connected to a respective fastening member at a lower end thereof and to a connecting member at the upper end thereof. Plural nut runners are provided on a connecting head which is movable up and down to connect the runners with the connecting members. Predetermined ones selected from plural driving shafts connected to the nut runners may be engaged to or disengaged from the respective corresponding driven shafts through the respective connecting members.