| 摘要 |
This describes a mechanism for the placement of washers and eyelets, operated pneumatically, designed to perforate a support and place washers and eyelets in the perforations made, which consists of a first shaft-piston sub-assembly (A), internally hollow, that includes a piston with a central hole for the passing of a threaded proximal end of a first shaft, a second shaft-piston sub-assembly (B), with a smaller diameter and longer than the first, housed concentrically and moving in the former, with a piston with a central hole for the passing of a threaded proximal end of a second shaft, and a third sub-assembly (C) that includes a pneumatic cylinder with a lid with a hole for air to pass to move the first and second sub-assemblies towards an external object to be perforated. |
