AUTOMATIC PRESS FOR FORMING PROTRUSIONS IN TUBULAR PART Russian patent published in 2005 - IPC

FIELD: plastic metal working, possibly die tools for forming protrusions in tubular parts in presses provided with systems for automatic feed and discharging parts and for controlling forming process.

SUBSTANCE: automatic press includes press; movable upper plate of press for mounting die set stem in press slide; stationary foundation with part stripper; sleeve movably mounted in central opening of foundation and having yoke and flange movably and coaxially mounted in it; built-up punch; built-up die and wedges. Built-up punch includes group of movable Г-shaped inner cams placed in grooves of yoke and having working surfaces corresponding to outer protrusions of part. Built-up die includes group movable outer cams placed in grooves of yoke and having working surfaces corresponding to shape of outer and inner protrusions of part. Wedges are placed in through openings of flange and body of sleeve wall along its axis; number of wedges corresponds to that of outer cams. Wedges are provided with adjusting screws. Automatic press includes gate type feeder and control system with controller and with pickups for detecting upper and lower positions of press slide, initial position of gate of feeder, part knocking out from die set and also pickup for detecting press charging.

EFFECT: enhanced accuracy and operational reliability of die set.

3 cl, 6 dwg