Crimping machine with automatic swing open pushers

Abstract

A crimping machine for radially inwardly crimping an end fitting onto a hose by means of a contractible die assembly includes a reciprocable ram. A pusher assembly is mounted on the ram for transmitting ram force to the die assembly. The pusher assembly includes first and second semicircular pusher members, and each pusher member is mounted for axial movement with the ram and for lateral swinging movement relative to the ram about a pivot axis which is parallel to the longitudinal axis. The die assembly includes two disjuncted die sections, one of which is carried on the end of each pusher member by an attachment arm which is deflectable to permit radial movement of the die sections relative to the pusher members. The attachment arm is provided with manually deflectable tabs which secure the die sections in place during crimping and which are deflectable to permit removal and replacement of the die sections. The pusher members are opened and closed by a camming arrangement which includes cam rollers on each pusher member and a stationary cam surface having an arcuate lateral cross section to provide proper camming as the pusher members and cam followers swing about the pusher member pivot axis.