Abstract: A fluid distributor apparatus includes a body having distribution ports; a spool adapted for controlling the distribution ports and mounted slidingly in a first sliding seat obtained in the body and communicating with the distribution ports; a copying-member mounted slidingly and sealed in a second seat obtained in the spool; and a supply system for a controlled supply of the fluid to the second seat, so that the copying-member slides in a controlled way. The supply system includes also a chamber containing the fluid and communicating with said the seat, and a pushing device of the fluid mounted slidingly and sealed in the chamber.

Abstract: A multiple punch apparatus for punch presses having a provision for preventing undesired damage to a work-piece includes a housing having a plurality of separate punches that include at least one inactive punch and one active punch, each inactive punch being supported in an elevated position by retention magnet means having flux lines oriented to extend into at least each inactive punch when the active punch is in a position in which it is driven into engagement with a work-piece, whereby each inactive punch is magnetically supported to prevent any unintended contact with the work-piece.

Abstract: A fluid distributor apparatus includes a body having distribution ports (35, 37, 39, 62, 63); a spool adapted for controlling said distribution ports and mounted sliding in a first sliding seat obtained in said body and communicating with said distribution ports; a copying-member mounted sliding and sealed in a second seat obtained in said spool; and supply means for a controlled supply of said fluid to said second seat, so that said copying-member slides in a controlled way. Said supply means include also chamber means containing said fluid and communicating with said second seat, and pushing means of said fluid mounted sliding and sealed in said chamber means.

Abstract: A punching machine comprising at least one punching head including a support body having a first end delimiting a peripheral shoulder, a second end, and at least two parallel seats being angularly spaced from one another and extending through said support body from said first end to said second end; a punching tool holder slibably mounted in at least one of said seats; a multiplicity of removable resilient means angularly spaced from one another, each having a first end resting on said peripheral shoulder and a second end facing away from said peripheral shoulder; an annular cap member arranged in front and spaced from said peripheral shoulder and designed to abut against said second end of said resilient means; a rotor member mounted for rotation on said annular cap member and having an inner face thereof facing towards said punching tool holder; a sliding member projecting from said inner face and arranged to slide onto said punching tool holder when said rotor member rotates; and driving means designed to

Abstract: A modular conversion unit for converting punching machines from single-punch to multiple-punch comprises an upper main cylindrical magazine rotatably supported by a turret of the punching machine and provided with a plurality of radial seats for accommodating corresponding upper secondary cylindrical magazines, supporting a preset number of punches surmounted by corresponding hammer elements fitted so as to rotate, a corresponding lower main cylindrical die-holder magazine accommodated so as to rotate synchronously and in alignment with said upper cylindrical magazine in a hollow seat formed in a worktable of the punching machine and provided with a corresponding number of radial seats for lower secondary die-holders vertically aligned with the upper secondary magazines, each die-holder being provided with a plurality of dies whose number is equal to the number of the punches.