B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
26/79, 138/80.13
B21D 39/00 (2006.01) B21D 39/04 (2006.01)
Patent
CA 1068082
ABSTRACT OF THE DISCLOSURE 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 laterals 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 de- flectable tabs which secure the die sections in place during crimping and which are deflectable to permit removal and replacement of the die sections. An annular seal cartridge is removably secured to the hydraulic cylinder in which the ram moves and permits removal of the ram without loosening the cylinder tie rods. A valve carried on the ram limits the axial force which may be exerted on the seal cartridge. The pusher members are opened and closed by 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.
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