Abstract: An electrohydraulic forming device for forming a blank of material includes: —an electrohydraulic forming chamber, —at least one central electrode extending in a so-called longitudinal direction and comprising a first end arranged inside the electrohydraulic forming chamber, —a body provided with a bore for introducing each central electrode into the electrohydraulic forming chamber, the electrohydraulic forming chamber being partially formed by said body, —a mould, and —at least one peripheral electrode electrically insulated from each central electrode, arranged at a distance from and around the end of a central electrode, and extending in a transverse plane relative to said central electrode.

Abstract: A robotic system may include a robot base and a rod feeding subassembly coupled to the robot base that includes a feeding actuator configured to selectively move a surgical rod. The robotic system may include a brake subassembly coupled to the robot base that includes a brake actuator configured to receive the surgical rod from the rod feeding subassembly, and selectively fix a first portion of the surgical rod with respect to the brake subassembly. The robotic system may include a bending subassembly coupled to the robot base that includes a bending actuator configured to selectively rotate to engage a second portion of the surgical rod and bend the second portion of the surgical rod with respect to the first portion of the surgical rod so that the first portion and the second portion of the surgical rod define a first bend angle.

Abstract: A bending press system is disclosed. The bending press system may include: a base; a slider disposed above the base and moving downwardly toward the base or moving upwardly from the base; a curvature die mounted at the base and the slider, and integrated by descent of the slider such that a pipe member inserted in the curvature die is formed to have a predetermined curvature; and a pair of clamping units disposed to be rotatable by a predetermined angle corresponding to the curvature die at both sides of the base, and clamping both end portions of the pipe member.

Abstract: An automated bender and its method of operation according to some embodiments of the disclosure is provided. The automated bender includes a carousel which has all of the necessary components for bending a variety of conduit sizes provided thereon. The carousel can be rotated to a desired bending position to bend a particular type of conduit. A straight workpiece is fed into the automated bender and a bent workpiece, which may have multiple bends therein, is output from the automated bender. This bending process is performed without manual intervention. Software for achieving same is provided.

Abstract: A roller clamping apparatus is provided that includes a first jaw and a second jaw configured to move relative to each other between an open position and a closed position. The jaws include at least one drive roller supported by the first jaw and configured to rotate a round wire having a longitudinal axis. The apparatus further includes at least one support element supported by the second jaw. When the jaws are in a closed position, the drive roller and the support rollers tangentially contact an outside surface of the wire. The support element is positioned to make contact with the wire across the longitudinal axis of the wire when the wire is secured within the clamping apparatus. Mechanisms and methods that use the roller clamping apparatus are also disclosed.

Abstract: A clamping device for a bending press includes a clamping die with a space formed therein, a clamping holder rotatably disposed within the space of the clamping die around a rotation shaft formed thereto, an upper cam block and a lower cam block respectively disposed within the clamping holder and slidable along the horizontal direction, and of which a cam slant surface is formed at a front side of the upper cam block and the lower cam block respectively, an upper clamping block and a lower clamping block contacting each cam slant surface of the upper cam block and the lower cam block, and clamping an end of a pipe disposed therebetween by sliding along a slant direction of the clamping holder, and a pressing unit selectively pressing the upper cam block and the lower cam block.

Abstract: A device for turning an object about an axis which is stationary related to the device, the device including two manipulator modules, each provided with a base part, to which, rotatable on a base axis, an upper arm is linked, to which, rotatable on an arm axis, a lower arm is linked, which features an end axis. The base axis, the arm axis and the end axis of each manipulator module intersect with each other respectively in one intersection point, with their connecting line defining the swivel axis. A connecting piece is mounted between the two lower arms so that it is rotatable on the two end axes and forms and/or provides an object holder for the object to be turned/swiveled.

Abstract: An apparatus for drawing a metal sheet. In one implementation the apparatus includes a fixed head having a first window through which the metal sheet to be drawn may pass and a first holder for holding a first portion of the metal sheet within the first window during a drawing process. The apparatus also includes a moving head that is moveable relative to the fixed head. The moving head has a second window through which the metal sheet to be drawn may pass and a second holder for holding a second portion of the metal sheet within the second window during a drawing process. A support assembly is attached at one end to the fixed head and extends longitudinally through the second window of the moving head. The support assembly forms a part of an actuator assembly that is operable to situate the moving head in different and fixed longitudinal positions relative to the fixed head prior to a drawing process.

Abstract: A support jaw arrangement for sliding lateral support of rod-shaped and tubular workpieces prior to their entrance into a forming groove of a bending head of a bending machine. The support jaw arrangement includes two support jaws, one on each side of the workpiece. Each support jaw is fastened on a holder to a support bracket which, guided in a longitudinally displaceable manner on a guide block, is displaceable by a drive device from an initial position retracted against the direction of transport of the workpiece parallel to the same, to an end position extended in the direction of transport of the workpiece. One support jaw supports the workpiece in a laterally sliding manner in a region from its tangential entrance into the forming groove, up to a point at a predetermined distance in front of the same while the other support jaw assumes a retracted initial position.

Abstract: A forming machine for forging metal workpieces which have been heated and/or are in a flowable condition including at least two forming tools (4A, 4B), at least one driving device for driving at least one of the forming tools in an approach motion (R) of the forming tools toward one another or in a return motion of the forming tools away from one another, and wherein the driving device comprises at least one eccentric element (22A, 22B) and at least one hydraulic drive element (11A, 11B), wherein the at least one hydraulic drive element (11A, 11B) is coupled hydraulically directly or indirectly to the eccentric element (22A, 22B) in such a way that an eccentric motion of the eccentric element produces a working motion of the hydraulic drive element by way of a hydraulic medium.

Abstract: A multiple clamp type stretching and forming machine is composed of multiple material clamping mechanisms (1), multiple material stretching mechanisms (2) and a frame (3). The material clamping mechanism (1) is composed of a material clamping frame (7), material clamping blocks (8, 9) and a hydraulic cylinder (6) for clamping material. The two sides of the frame (3) are arranged with a row of multiple material clamping mechanisms (1), respectively. The material clamping frame (7) of each material clamping mechanism (1) is provided with one or two connecting holes (5), which connect with one or more material stretching mechanisms (2) through a universal push-pull mechanism (4). The stretching and forming machine can improve the utilization ratio of the material, and reduce the manufacturing cost.

Abstract: Apparatus and methods for fabricating materials by die-forming that may be implemented to form a joggle in a bendable workpiece by securing the workpiece to each of at least two respective adjacent working areas, and then by displacing at least one of the at least two working areas relative to an adjacent working area in order to induce the joggle within the workpiece.

Abstract: An apparatus and method for bending a printing plate is disclosed. A bending machine, in particular for the bending of printing plates which are used in printing machines, includes a pressure pad, which exerts the required clamping force on the printing plate during the bending operation, and which is movable in relation to a holding-down plate, so that a uniform clamping force acts on the printing plate over the entire length of the pressure pad.

Abstract: A wheel reconditioning apparatus provided. The wheel reconditioning apparatus includes a support frame upon which a base support plate is attached. A rotatable adapter plate is supported on the base support plate by a precision bearing for supporting the rotation of the adapter plate about the vertical axis of a mounted wheel. Adjustable chucks are set in place on the adapter plate. The disfigured wheel is mounted on the adjustable chucks and held in place by the chucks during the reconditioning process.

Abstract: A bending machine for bending elongated workpieces supplied from a magazine is disclosed. The bending machine comprises a base support; two bending robots arranged on a common guideway centrally mounted to the base support, such that the robots are displaceable parallel to the longitudinal direction of the base support. A holding clamp is positioned on the front face of the base support, with one auxiliary gripper on either side of the holding clamp. The holding clamp is displaceable in parallel with the bending robots. A discharge gripper is positioned on the rear surface of the base support, laterally offset with respect to the holding clamp. All grippers and clamps are pivotable to an inner pivoting position, in which they can hold a workpiece in the working area of the bending machine between both bending robots; and to an outer pivoting position away from the base support.

Abstract: In a bending machine for bending rod-shaped workpieces made from wire, tubular material or the like, a machine frame is provided with at least one bending station including two bending units. Each of said bending units includes a bending head with a bending head housing and a bending tool, an auxiliary gripper arranged on the bending head housing so as to be pivotable perpendicular to the longitudinal axis of the machine frame, and a gripping unit, which is spaced apart from the bending head as viewed along the longitudinal axis of the frame, pivotable perpendicular to the longitudinal axis of the machine frame and displaceable on a guide in the direction of said axis.

Abstract: A forming apparatus (20) and method are provided for forming an item (10). The item includes an end part (12), a body part (14) and a tip (16), the body part extending from the end part, the tip being located at an end of the body part remote from the end part. The invention is characterised in that the apparatus includes a tip holder (22) for holding the tip and an end die (26) for clamping the end part; a rotator (42) for inducing relative rotation between the end die and the tip holder which, in a twisting step, induces a twist in the body part in use; and a body die (32), the body die including one or more formation surfaces (34), the body die being arranged in use in a conformation step to conform one or more surfaces (50) of the twisted body part to the or each formation surface.

Abstract: A device and a method for widening elongated metal elements which move in the longitudinal direction and are planar at least in certain regions are described. The device comprises at least two clamping sections which are opposite one another and of which one is arranged and designed for clamping a first longitudinal side of the metal element in place and the other is arranged and designed for clamping a second longitudinal side of the metal element in place, said second longitudinal side being opposite the first longitudinal side of the metal element. The clamping sections are each provided on a support unit by means of which the clamping sections, during the forward move-ment of the metal element, are automatically moved apart essentially perpendicularly to the direction of movement of the metal element.

Abstract: The present invention in one embodiment is a bead formed from bottle caps of a beverage container. In another embodiment of the invention, pieces of jewelry or other ornamental objects are formed from bottle caps of beverage containers. In yet another embodiment of the invention, pieces of jewelry or other ornamental objects are formed from the metal of cookie tins, candy tins, mint tins or similar metal containers. After appropriate preparation, a bottle cap or piece of metal from a tin is placed in a press tool having a punch member forming tool and cutting die that cooperatively interact to reform the bottle cap or metal from a tin, and in some cases punch out a piece of the bottle cap or metal from a tin. This produces, in several embodiments, a component that will be joined with one or more other similar components to form the bead or ornamental object of desire. In other embodiments, the reformed bottle cap or piece punched out of the bottle cap or tin is the desired ornamental object itself.

Abstract: A machine and method according to which advancing material (1) such as wire, prismatic material, or rod is gripped during the duration of its advancement from an advancement unit (2) towards a bending unit (3). The gripping is effected by a jaw (4) that grips material (1) with sufficient force so that the material (1) cannot twist. By gripping the advancing material (1), the under-production part (16) is simultaneously gripped and prevented from rotating, so that bends are made in the correct plane and the bent product is produced with great accuracy.

Abstract: In order to provide a method and apparatus for forming a sheet metal, in which a three-dimensional product such as a prototype for commercialized press-forming can be formed in short time without limitations as to the shape and with high accuracy, preventing body wrinkles or reduction of the sheet thickness, a process of: performing drawing-forming to a predetermine height by pushing the forming punch having a desired shape in the sheet thickness direction with the edges of the blank workpiece being clamped; performing shape-forming with the shaping tool in the opposite side to the forming punch by increasing a clamping pressure to lock movement of a material with the forming punch being pushed; performing drawing-forming again by decreasing the clamping pressure and raising the forming punch by a desired height; and performing shape-forming with the shaping tool by increasing the clamping pressure to lock movement of a material, is repeated at least once.

Abstract: An apparatus for manufacturing a cable bolt from a cable (1) includes first and second clamps (2, 3) adapted to releasably clamp the cable (1) with the cable (1) extending along the longitudinal axis (4) of the apparatus. A first cable displacement device (12) longitudinally displaces the first clamp (2) relative to the second clamp (3) along the longitudinal axis (4). A first clamp rotation device (14) rotates the first clamp (2) relative to the second clamp (3) about the longitudinal axis (4). The apparatus also has a second clamp displacement device (19) for simultaneously longitudinally displacing the first and second clamps (2, 3) along the longitudinal axis (4).

Abstract: An automatic swaging machine including a conveyor system for moving tubes into position for swaging a clamping apparatus to secure the tubes adjacent a swaging station to receive a swaging tool releasing a clamping apparatus during the swaging operation, reclamping the tools after swaging to remove the swaging tool from the ends of the tubes and moving the tubes with the conveyor system into a receiving receptacle.

Abstract: Improved slide lock apparatus used in bending apparatus to bend stock to an acute angle. A hydraulic cylinder with a ram extendable under hydraulic pressure provides the bending power. The ram automatically retracts a slide from an first outward location when hydraulic pressure is removed to a second inward location for two separate bends to achieve an acute angle bend. This improved slide lock prevents any possible injury to the operator by covering a stop arranged to prevent the slide from moving outward a greater distance then the first outward location.

Abstract: Apparatus and methods for fabricating materials by die-forming that may be implemented to form a joggle in a bendable workpiece by securing the workpiece to each of at least two respective adjacent working areas, and then by displacing at least one of the at least two working areas relative to an adjacent working area in order to induce the joggle within the workpiece.

Abstract: Aspects of the present invention relate to an automated handling device for handling a forged piece during a forging press. A method in accordance with an implementation of the present invention involves positioning the workpiece between two tools in a predetermined shaping position in at least one working region of a shaping machine (positioning step), particularly one that operates percussively, moving the tools of the shaping machine relative to one another and shaping the workpiece between the tools during at least one shaping step, holding the workpiece in its shaping position by at least two handling devices during each shaping step, and thus also when the tool(s) strike the workpiece, and automatically controlling or regulating by mutual coordination the motions and positions of at least two handling devices by use of at least one control device.

Abstract: WHEEL RECONDITIONING DEVICE, composed of a base (1), from whose upper facing extends a vertical, rear column (2), from which extend forward one upper cross brace (3) and one intermediate cross brace (4), the latter equipped with axles (5) and (6) for the positioning and fixation of the wheel, and which interconnect with the upper cross brace (3) by means of a frontal, vertical and mobile column (11), and additional swinging cross brace (13) connected to the upper cross brace (3), responsible for the fixation of the wheel in the desired position for use of the hydraulic jack.

Abstract: An elbow rotator apparatus for rotating an integrally formed section of an elbow workpiece includes a pair of gripping arms which are selectively positionable in a first position displaced from the elbow workpiece, and a second position in which the gripping arms are in contact with the integral section of the elbow workpiece. A rotary actuator is operatively connected to the gripping arms to selectively rotate the gripping arms by a predetermined amount when the gripping arms are in the second position.

Abstract: A propeller straightening apparatus utilizes a pair of adjustable hydraulic cylinders to apply pressure to a selected propeller blade of the propeller. Adjustments can include lateral, longitudinal and tilt angle. A propeller mount holds the propeller in a fixed position during straightening. The mount can be quickly loosened so that the propeller can be rotated to present a different propeller blade to the hydraulic cylinders. The cylinders have polyurethane tips portions that help grip the surface of the propeller. The apparatus can bend a selected propeller blade to change rake and/or pitch.

Abstract: Devices for straightening portions of a vehicle, particularly the unibody and/or frame of a vehicle following a collision. A device comprising a clamp which is attachable to a pulling device which exerts a pulling force in a direction P. The clamp comprises jaws which open in the general direction of pulling force P to engage a flange or other portion of a vehicle extending away from the direction of the pulling force P. This aspect is particularly useful for repairing the wheelhouse of a vehicle. Another aspect is a clamp with two openings, preferably in a single set of jaws. One opening may, for example, open proximally, i.e., in the general direction of pulling force P, while the other opening may open in a direction away from pulling force P. Another aspect of the present invention comprises providing a plurality of clamps in a single pulling device wherein the clamps are connectable, via a chain, to a single pulling arm, and where the clamps are independently positionable relative to each other.

Abstract: According to the invention, a unit (10) is proposed for the production of track elements (25), which comprises a plurality of clamping devices (14) arranged one after another in the longitudinal direction of the unit. Provided in the clamping devices (14), there is in each case a pedestal element (16), which is fixed to the floor, and a clamping table (24) which is connected at least indirectly to the pedestal element (16). A portion of a track element (25) may be placed on each clamping table (24). In order to enable the prefabrication of track elements (25) whereof the curvature, longitudinal profile and camber are individually different, the clamping tables (24) are positionally adjustable with respect to the particular pedestal element (16).

Abstract: An apparatus and method for straightening propeller drive shafts without the need for removing the shaft from the lower unit/drive assembly is disclosed. In an embodiment of the present invention, a mechanical linkage is provided that is configured to securely grip the propeller drive shaft and that is mechanically coupled to an extension module. The extension module may be a hydraulic ram that provides a linear force. The linkage is configured to receive the linear force from the extension module and transfer the linear force to the propeller drive shaft. Because the propeller drive shaft is securely fixed within the linkage and within the lower unit/drive assembly, the force applied to the propeller drive shaft is operative to bend the propeller drive shaft opposite of the existing bend in order to straighten it.

Abstract: A metal encaustic tile making machine includes a machine base, a corrugation forming roller unit controlled to corrugate a continuous sheet of metal sheet material into a corrugated metal sheet, an angle forming unit controlled to stamp the corrugated metal sheet into a metal encaustic tile having angles, a cutting unit controlled to cut the finished metal encaustic tile from the continuous sheet of metal sheet material, a slide carrying the angle forming unit and the cutting unit on the machine base, and a motor controlled to move the slide forwards/backwards along two parallel guide rails at the machine base via a transmission screw to fit the delivering speed of the continuous sheet of metal sheet material.

Abstract: Apparatus and method for folding a sheet material, preferably an electrode sheet, into a fan-fold orientation. A securement means secures a portion of the sheet material to a rotatable plate in a plane parallel to the rotatable plate. A rotatable releasable clamp secures at least a portion of the sheet in a first rotational position between the plate and clamp. A rotation means rotates the securement means, plate, and clamp so as to move the sheet from the first rotational position to a second rotational position, wherein, rotation from the first rotational position to the second rotational position forms a folded portion of the sheet over a portion of the clamp.

Abstract: A method of manufacturing a turbine blade retainer using a material cutting device and a material bending device includes steps for suspending a bar stock material between a polyurethane shock absorber and a bore of a cutting jig support, moving the cutting punch downward to press the distal end of the bar stock material into the shock absorber and then cut the bar stock material to thereby generate a blank, clamping the blank between a bending punch and a receiving slide by pressing the bending punch against the receiving slide, bending the distal end of the blank against a chamfered section of a bending support in response to continued downward motion of the bending punch to thereby form a blade retainer precursor, and milling the blade retainer precursor to form the blade retainer. Corresponding devices for performing these steps are also described.

Abstract: An encaustic metal tile fabrication equipment includes a roller unit operated to roll an encaustic metal sheet into a corrugated encaustic metal sheet, a shape forming mechanism having a first shape forming mold unit and a second shape forming mold unit and operated to process the corrugated encaustic metal sheet into an encaustic metal tile having a bend with a recessed portion, and a cutting unit operated to cut the finished encaustic metal tile to the desired size.

Abstract: The ribbon cable being folded is fixed with a first end, called the fixed end, on a folding table and guided with another end, called the manipulated end, by a handling device. The handling device brings the manipulated end into the position that it is supposed to have after folding, and the loop formed in this position of the ribbon cable is smoothed out by a folding device.

Abstract: A shaping device for producing a U-shaped conductor includes a holding portion, a feeding portion, a core metal portion and a shaping portion. The core metal portion includes a core metal and an upper guide portion. The core metal forms a die. The upper guide portion restrains upward movement of the conductor material during the shaping operation. The shaping portion includes a shaping element and a lower guide. The shaping element shapes the conductor material into the U-shape by urging the conductor material along the core metal. The lower guide restrains downward movement of the conductor material during the shaping operation. It is possible to move the shaping element downwardly after the conductor material is shaped into the U-shape. The conductor material can be fed forward without returning the shaping element to its initial position.

Abstract: A bending apparatus for bending and transporting an aluminum metal sheet. The bending apparatus includes a central retaining portion that has gripping elements mounted on the central retaining portion for retaining an aluminum metal sheet. There is also included a bending mechanism that is mounted to the central retaining portion. The bending mechanism is capable of axial movement in relation to a central axis of the central retaining portion for imparting a curvature to an aluminum metal sheet.

Abstract: A system and method for adjusting the orientation of trim tabs on a helicopter rotor blade includes a gage, a bender and a calibrator plate. The gage is secured to the calibrator plate which holds the gage in an orientation that simulates a rotor blade with trim tabs at zero degrees so that the gage can be zeroed. The gage is then removed and positioned on a rotor blade. Because the gage is supported on the blade by rollers, it is free to roll along the length of the blade and may thereby be positioned and repositioned quickly. Once in position, the bender is applied to the trim tabs adjacent to the gage and tightened using thumb screws. The handle of the bender allows the trim tabs to be adjusted while verifying that the amount of adjustment indicated by the gage dial indicator matches the preselected angle.

Abstract: A bending device has one or more bending tools and each bending tool has one or more adjustable bending jaws and one or more stationary bending jaws for producing a fold on a sheet metal plate. The adjustable bending jaw is pivotably supported on the stationary bending jaw so as to be pivotable about a pivot axis. The adjustable and stationary bending jaws have end faces and bending strips arranged in the area of the end faces. The bending strips in an initial position of the adjustable and stationary bending jaws delimit an opening angle having a bisecting line intercepting the pivot axis. At least one joint connects the adjustable bending jaw and the stationary bending jaw to one another. At least one adjusting device engages the adjustable bending jaw and is supported on the stationary bending jaw for adjusting the adjustable bending jaw.

Abstract: A robotic bending apparatus for bending archwires and other types of elongate, bendable medical devices into a desired configuration includes a first gripping tool and a moveable gripping tool. The first gripping tool can be either fixed with respect to a base or table for the robot or positioned at the end of robot arm. The moveable gripping tool is mounted to the end of a moveable robot arm having a proximal portion also mounted to the base. The robot preferably comprises a six axis bending robot, in which the distal end of the moveable arm can move relative to the fixed gripping tool about three translational axes and three rotational axes. The gripping tools preferably incorporate force sensors which are used to determine overbends needed to get the desired final shape of the archwire. The robot may also include a resistive heating system in which current flows through the wire while the wire is held in a bent condition to heat the wire and thereby retain the bent shape of the wire.

Abstract: A clamping device including a housing having a base portion slideably mounted to be positionable along the width of a carriage, the carriage being slideably mounted to be positionable along the length of a guide track. The housing includes a clamping jaw pivotally mounted therein and activatable by a hydraulic cylinder. The carriage is designed to interlock with the base portion of the housing and with the guide track upon activation of the hydraulic cylinder.

Abstract: A system (20) for anchoring a vehicle frame (22) to a platform (24) utilizes a variety of securement components (34, 36, 38, 40, 42, 44, 46, 48) to secure the vehicle frame (22) from movement at desired locations while the vehicle frame (22) is being aligned with pulling forces applied by pulling towers (26). The securement components (34, 36, 38, 40, 42, 44, 46, 48) are held on cross beams (28, 30) which mount to anchoring stands (32), and the anchoring stands (32) are attached to the platform (24). The securement components include a rail vise (34), a C-channel clamp (36), a leaf spring shackle (38), L-clamps (40, 41), a slide plate (42), a hole adapter (44), a tie-down ratchet assembly (46), and a turnbuckle assist (48). The rail vise has two guide channels (78, 80) which slidably receive guide pins (114) therein. The guide pins (114) extend from a front movable clamp leg (74).

Abstract: In an apparatus for cold bending a metal sheet for making an elongated article with a predetermined pro-file, supports are provided to receive opposite ends of the sheet being formed. A form, whose cross section defines a predetermined profile, is operated perpendicularly with respect to its longitudinal axis, so as to clamp the sheet, resting on the supports, to a stop. Bending members are carried by two plates which are mounted for oscillating on a vertical plane transversal to the form, so that the bending members rotate around spindles parallel to the stop plate. The bending members are operated in time relation with a synchronous movement of the form and of the stop, so as to fold the two ends of the sheet piece over the form.

Abstract: A crimping tool capable of forming a uniform series of deformations or crimps on a workpiece, such that at least a portion of the workpiece can be modified to acquire an arcuate shape with a predetermined radius. The crimping tool includes a pair of arms and an associated pair of jaws. The tool further includes an adjustment feature associated with one of the arms for adjusting and gaging the distance between the jaws when in a crimping position. As such, the degree of deformation or crimping that can be applied by the jaws is positively limited by the adjustment feature, which physically establishes the minimum gap width between the jaws during a crimping operation. The jaws include die members specially configured to promote accurately placed and uniform crimps in a workpiece.

Abstract: A major object of the present invention is to compensate for variations in springback angle resulting from variations in material properties from one lot to the next, for the realization of high angle accuracy bending. Based on the difference between a workpiece actual bend angle detected during bending and an estimated bend angle of a workpiece W at an arbitrary penetration point of an upper die 5, a correction value for prestored data relating to a springback behavior under a processing condition is obtained. Based on the correction value, a final penetration point of the upper die 5 is obtained.

Abstract: An adjustable gage block for a press brake comprises a base attachable to the press brake and a body pivotally carried by the base for pivoting movement about a vertical axis. The body carries a first guide member, and a second guide member is pivotally carried by the body for pivoting movement about said vertical axis with respect to the first guide member. One or both of the guide members have upwardly-facing guide surfaces laying in a horizontal plane to support a workpiece, and each guide member has a vertical guide surface, with the vertical guide surfaces laying in convergent planes. Adjustment means are provided for adjusting the angle between the vertical guide surfaces of the guide members to accommodate the shape of a workpiece. Desirably, a workpiece support is mounted to the press brake spaced from the gage block, the workpiece support having an edge guide surface positioned to engage an edge of the workpiece and to orient the workpiece with respect to the gage block.

Abstract: A method and device for machining a sheet contains a jaw equipped with two plates mounted opposite each other in order to delimit a calibration opening between said plates in which it is possible to vary the spacing between plates. A clamp is provided for grasping the sheet, and the clamp is moved in relation to said plates. The movement of the clamp and the relative position of said plates is coordinated, so as to slide the sheet in relation to said plates while the distance between said plates is controlled. The process includes pulling the sheet by one end so as to separate an initial section from the plane containing the calibration opening and thus pass the sheet through the calibration opening while the plates are kept supported against said sheet, so as to vary continuously the thickness of the sheet while the sheet is passed through the calibration opening.

Abstract: A double blank detector apparatus and method of operation determines the condition of when one blank, no blanks or more than two blanks are about to be fed into a press. An indicator bar advances relative to the number of blank sheets of material being detected and interrupts an infra-red light beam when only blank of material has been detected. Under this preferred condition, a signal is produced which allows a press located adjacent to the double blank detector to continue its stamping operation. Alternatively, if either a no blank or a double blank condition is sensed, then the indicator bar advances accordingly, thus not interrupting the infra-red light beam. During this condition, a signal is produced indicative of the situation thus notifying the operator that there is a problem and stopping the press from cycling.