Abstract: The manipulator comprises a closed-ring conveyor device, which comprises a succession of grasping organs having a fixed part and a movable part. The part of the conveyor device comprises at least one rectilinear section along which suitable assemblies act on the movable parts of grasping organs to allow the closing of same on the sheet to be manipulated.

Abstract: The station comprises a revolving table for receiving, positioning and clamping in an operating position a pallet of the type provided with adjustable anchoring elements for components of clamping fixtures, a magazine for modular components of clamping fixtures and a robot capable of executing adjustment functions of the anchoring elements of pallet, of the clamping and transfer of the modular components and of the application to and separation from the components themselves with respect to anchoring elements of pallet. There is provided a control centre with a computer, whereby just one operator may automatically and repetitively execute the work for the entire station.

Abstract: A connecting system which includes a slack connecting device between a blade and a support and an elastic member for taking up slack between the blade and the support in a direction of application of operating forces. A face of the support which reacts to the bending force component in a direction parallel to a plane of a sheet metal panel and perpendicular to a bending line is defined by a pair of superimposed rods which slide in the direction of the bending line in their respective seats with differentiated sections.

Abstract: The bending machine for the production of rectangular sheet metal panels includes a vertically traversing blank holder which is formed of a plurality of blank-holding elements, two end elements and two spacers, a fixed counterblade, two opposing blades fixed to a vertically traversing C support and structure for positioning the metal sheet to be bent on the counterblade. There are provided on the machine programming elements traversing along the blankholder to vary the side extension of said blankholder according to the dimensions of the metal sheet to be bent. There is also provided the possibility of expanding and contracting the blankholder sidewise at the beginning and at the end respectively of the bending operation of a long side of the metal sheet.

Abstract: The bending machine has a blank holder with a support hinged on a fixed base. The blank holder is operated by a plurality of hydraulic cylinders which act from the bottom up, reacting on the fixed base. The machine has opposite blades operated by horizontal and vertical cylinders, whose ends are hinged on the fixed base. Said opposite blades are held by a common support through which pass the stems of said hydraulic cylinders operating the blank holder. Said hydraulic cylinders are also equipped with a stoppage system for stopping the blank holder in a position above a sheet metal panel placed over a fixed counterblade.

Abstract: Between a plurality of side-by-side punches and an operating slide having reciprocating motion is arranged a selective motion transmission device which consists of two pluralities of toothed couplings in mutually opposed positions. The toothed couplings of a first plurality are made integral with the punches while the others follow the reciprocating motion of the slide but are shiftable transversally to it between a neutral position and a working position. In the latter position the teeth of the opposed couplings are mutually aligned and thus allow transmission of the reciprocating motion of the slide to the corresponding punches.

Abstract: Selectors which can be worked alternately are placed along the advancement path of articles having different sizes. Each selector is constituted by a rake structure with L-shaped prongs which can be moved from an upper rest position, where the prongs do not interfere with the advancement of the articles along said path, to a lower pick up position where the prongs stop the advancement of the articles and then again to an upper discharge position, where the prongs, after having lifted the engaged articles, allow their conveyance towards collection places, such as piling hoppers.

Abstract: A shearing machine for metal sheets having a pair of upper mobile and lower stationary cooperating blades, each blade having two segments mounted perpendicular to each other.The two segments at right angles of the mobile blade are movable independently either with respect to each other or with respect to the common support so that, in turn each segment is able to execute cut strokes of different lengths in order selectively to engage one and/or the other of the segments. Each of them is able to execute cuts longer than its own longitudinal extension.

Abstract: Automatic shearing apparatus is provided which includes a shear provided with a shearing blade, a feeding unit for feeding sheet metal to the shear, and at least one movable carrier arranged downstream of the shearing blade. The movable carrier is controlled to receive and store the sheared pieces and then to return them to the feeding unit or, selectively, to cause the sheared pieces to reach a controlling device for sending to a piece discharge area. The feeding unit can be a manipulator, with rectilinear motion perpendicular to the shearing blade, and a rotator, both located upstream of the shearing blade. The manipulator and rotator function to receive, rotate and feed the metal sheets to be sheared, as well as to receive, rotate and refeed to the shear the sheared pieces returned by the movable carrier.

Abstract: Forming press for making perimetral bends on metal sheets or plates comprising a support structure having a C-shaped cross section with horizontal arms, a fixed lower counterblade, and an upper blank counterblade, movable in a vertical direction, a cutter block carriage, movably guided in the vertical direction between the arms of said support structure, an upper bending blade and a lower bending blade mounted on said cutter block carriage and having respective active parts cooperating with said counterblades for the downward and upward bending of the edge of a plate firmly held by the counterblades. In order to prevent the surfaces of the plates, when particularly treated, e.g.

Abstract: The punching machine of this invention comprises a punching head provided with a plurality of punch/die pairs for effecting punching operations of a metal sheet. In the punching head there are defined a plurality of operative positions in each of which there is positioned and actuated a punch/die pair of the said plurality of punch/die pairs. Each punch/die pair is operated independently from the others. The punching machine further includes a numerically controlled programmable manipulator equipped with pincers for gripping a metal sheet and displacing it between the punchs and dies of said plurality of punch/die pairs.

Abstract: Forming press for making perimetral bends on metal sheets or plates comprising a support structure having a C-shaped cross section with horizontal arms, a fixed lower counterblade, and an upper blank counterblade, movable in a vertical direction, a cutter block carriage, movably guided in the vertical direction between the arms of said support structure, an upper bending blade and a lower bending blade mounted on said cutter block carriage and having respective active parts cooperating with said counterblades for the downward and upward bending of the edge of a plate firmly held by the counterblades.In order to prevent the surfaces of the plates, when particularly treated, e.g.

Abstract: Machine for effecting bends of predetermined width and direction on the edges of a substantially-rectangular sheet of metal, comprises a combination of: a bending press having a C-form support structure carrying a lower bending counterblade, an upper, vertically displaceable blank-holder counterblade, and a pair of vertically displaceable bending blades having respective active parts lying in a common vertical plane substantially coplanar with a rear face of the blank holder counterblade; an iron hand including a vice supported on a carriage movable horizontally, perpendicular to the common vertical plane of the active portions of the bending blades, the lower jaw of the vice being rotatable about a vertical axis and the upper jaw being idle about a vertical axis and displaceable vertically to grasp a sheet to be bent between the jaws; and a positioning programmer, whereby, in use, a sheet of metal gripped by the vice is displaced by a value predetermined by the programmer into a position in which a first sid