Abstract: A stamping tool and a method of making a punch assembly and a die assembly of the stamping tool. At least one of the punch and die assemblies including a plurality of laser-cut steel plates having hardened edges suitable to withstand high pressures and impacts generated during stamping operations. The assembly further including an internal passage defined by holes formed in a number of plates of the plurality of laser-cut steel plates.

Abstract: A high-pressure press includes a pressure vessel surrounded by a force-absorbing press frame. The high-pressure press also includes a detection structure for detecting changes in length of at least one column comprised in the press frame, the changes in length depending on the pressure inside the pressure vessel. The detection structure includes a limit switch, which is adapted to detect if the change in length of the column has reached a threshold value and, in that case, interrupt a pressing operation in progress and reduce the pressure inside the pressure vessel.

Abstract: The present invention is a novel machine for repairing damaged wheel rims whereby pressure is applied to a damaged rim from a plurality of pressure applicators, and whereby all of the pressure applicators may be used without impairing the sightline of the user.

Abstract: A forging machine includes a support having two sidewalls, and two track plates attached respectively to the sidewalls. A slide body of a die assembly is mounted slidably inside the support between the sidewalls. Two first rolling devices are respectively mounted on the track plates near the front of the support to contact the slide body. Two second rolling devices are mounted respectively on the sidewalls above the track plates and near the rear of the support to contact the slide body. Due to the first and second rolling devices contacting the slide body near the front and rear of the support, the slide body can slide stably in the support without positional deviation.

Abstract: The invention relates to a connection device between a moving member and the moving end of a drive device. It comprises: a mechanical connection element in contact with said moving member; and a thermal insulator element interposed between said mechanical connection element and said end of the drive device, whereby the heat produced by said drive device is substantially not transmitted to said moving member. The invention is applicable to making press brakes.

Abstract: The present invention is related to a stamping machine for stamping an item at a high speed. The stamping machine comprises a case having an opening, at least one guide shaft formed in an interior of the case and extending in a first direction, a pedestal movable along the at least one guide shaft in the first direction for holding the worked item, and a stamping part for pressing the working tool against the worked item held on the pedestal. The stamping part comprises at least one guide shaft formed in an interior of the stamping part and extending in a second direction, a head driver formed in the interior of the stamping part and extending in the second direction, and a stamping head movable along the at least one guide shaft and the head driver in the second direction, wherein the stamping head is proximal to the pedestal.

Abstract: A press plant includes a press of pressure cell type, into which a tray device, which defines a space intended to receive a workpiece and, optionally, a forming tool, is insertable. The tray device comprises a tray plate and a tray frame. The tray frame is adapted to independently withstand, at least in certain portions, loads applied during the pressing operation. The tray device is divisible into at least an upper part and a lower part. The invention also relates to a method and use of a tray device in a press plant.

Abstract: The invention involves a forming tool for a machine tool. The forming tool can be used, for example, to create various large forms in sheet metal or other workpieces.

Abstract: A roll stand for edgers in rolling mills. The roll stand is formed of several pieces, including two crossheads and four longitudinal bars as main components, as well as one respective common cruciform junction point for the crosshead and the longitudinal bars, which is located at the ends of the longitudinal bars. Pretensioned through bolts that act as a joint are used at least at the top ends of the longitudinal bars.

Abstract: The invention concerns a clamping device for a device for the production of metal parts by forming with a closed forming tool, the clamping device comprising at least several tension hoops (2), these tension hoops (2) each being provided with at least one tension frame (2.2) of a closed contour, the tension frame being provided with two segments (2.3) arranged opposite each other at some distance, between which a forming tool (12) can be arranged, each of these segments (2.3) being provided with at least either one bearing surface (2.1) or one bearing surface (2.4), and the tension hoops (2) being each linked by at least one articulated joint (8) in order to be pivoted, a bearing surface (3.1) which is located above or on the upper surface of the forming tool (12) and used as support for a bearing surface (2.1) of a tension hoop (2), and a device (5) which generates a clamping force of more than 3 MN and is composed of several power-generating elements.

Abstract: The invention relates to a connection device between a moving member and the moving end of a drive device. It comprises: a mechanical connection element in contact with said moving member; and a thermal insulator element interposed between said mechanical connection element and said end of the drive device, whereby the heat produced by said drive device is substantially not transmitted to said moving member. The invention is applicable to making press brakes.

Abstract: A system and process for stamping parts having tolerances below 1000 nanometers. The inventive system and process is particularly suited for producing optoelectronic parts. The system includes a stamping press and one or a progression of stamping stations for supporting a punch and die. The stamping stations are designed to maintain substantial alignment of the punch and die with minimal moving components. The stamping station includes a shaft for rigidly guiding the punch to the die. The stamping press is capable of providing the punch with the necessary force to perform the stamping operations. The system includes an interface system for interfacing the force of the press with the punch, while simultaneously structurally decoupling the press from the punch. The system also includes a locating sub-plate, for locating the stamping station in alignment relative to each other, and means for in-line machine stock material before entry into the stamping stations.

Abstract: Apparatuses and methods for an improved handheld crimping tool for crimping a wire. The handheld crimping tool includes a head portion having a crimping device positioned adjacent a first end thereof. The crimping device may have an adjustable die cavity to facilitate crimping wires of various diameters. The crimping tool further includes a handle portion having a gripping portion suitably configured to be manually grasped. In one embodiment, the head portion is operable to be rotated relative to the handle portion to position the crimping device in a selected orientation and may be maintained in the selected orientation by a biasing mechanism. The crimping tool further includes a drive mechanism operable to actuate the crimping device. In one embodiment, the drive mechanism may be operable to convert rotational motion to reciprocating motion that generates a linear crimping motion in the crimping device.

Abstract: A propeller repair apparatus suitable for repairing and changing the pitch of a propeller includes a first rail parallel to and spaced from a second rail. A tapered shaft extends upwardly between the first and second rails for mounting a propeller thereon. A first frame extending between the first and second rails is movably mounted on the first and second rails for movement along the first and second rails. In one embodiment, a first actuator is pivotally mounted to the first frame and includes an extendible ram engagable with a propeller mounted on the tapered shaft.

Abstract: A servo motor in die tapping unit provides built in shock protection for the motor by fixing a shock plate to the servo motor and floatingly mounting the shock plate to a base structure attachable to a stripper plate in a press. Sets of opposing springs allow movement of the shock plate relative the base plate to relieve shock loads when the press is operated, the shock plate guided on dowel pins fixed to the base structure. The shock plate, and tapping unit and base structure form a self contained assembly for mounting together in the press.

Abstract: A bend-straightening machine with a vertically movable table for straightening long workpieces is provided. The bend-straightening machine of the present disclosure includes straightening supports for supporting a workpiece mounted on a movable table which moves in a vertical plane driven by a driving mechanism. The machine is constructed as a rigid frame including a base for supporting at least one upright column. A fixed bridge is joined to an upper portion of the upright column and supplies a stationary surface for mounting at least two workpiece holding fixtures, which grip the ends of the workpiece, allowing the workpiece to be rotated. Also, mounted to the bridge is at least one straightening punch which remains stationary during straightening. The moving table and straightening supports act vertically upward on the workpiece causing the workpiece to bend, i.e., straighten, when it contacts the straightening punch.

Abstract: The invention provides a drive device for a mechanical press with a two-step speed reduction mechanism for driving a slide of the mechanical press and includes a drive pinion provided concentrically with a crankshaft, a main gear mounted on said crankshaft, intermediate gears meshing with the drive pinion, and intermediate pinions meshing with the main gear. A plurality of the intermediate gears and the intermediate pinions are provided concentrically with each other. An intermediate gear that meshes with the drive pinion is arranged concentric with an intermediate pinion that meshes with a main gear. This drive device provides a more compact mechanical press.

Abstract: A high-pressure press includes a pressure vessel surrounded by a force-absorbing press frame. The high-pressure press also includes a detection structure for detecting changes in length of at least one column comprised in the press frame, the changes in length depending on the pressure inside the pressure vessel. The detection structure includes a limit switch, which is adapted to detect if the change in length of the column has reached a threshold value and, in that case, interrupt a pressing operation in progress and reduce the pressure inside the pressure vessel.

Abstract: Apparatus and methods for manufacture of bifurcated stents are disclosed. The apparatus can include a base having a first mount, a second mount and a third mount. The first mount, the second mount and the third mount can be configured to secure a first mandrel, a second mandrel and a third mandrel at positions relative to one another. The mandrels may be configured to receive two or more mono-tubular stents so that the stents or components of the stents may be secured to one another to form a bifurcated stent.

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: The press of the invention includes a first component and a second component for holding and pressing a workpiece to be processed between them, the first component being driven into translation relatively to the second component by an air cylinder. Thus, the first component is floatably mounted relatively to the second component, said components comprising means for positioning them relatively to each other at the limit of travel. Proper centering of the workpiece between the components, without stresses, may thereby be provided.

Abstract: A device for processing a thin metal foil and provided with a frame plate (7) for a die (16), a guide plate (10) for a punch (11), and a guide arranging for the die (16) and the punch to cooperate in the desired manner for the purpose of processing a thin metal foil by the die and the punch. The guide consists of at least two hinge elements (8, 9), each connected by means of an elastic line hinge (4, 5) with both the frame plate and the guide plate, the line hinges allowing only a pivotal motion in substantially the rectilinear displacement. The frame plate, the guide plate and the guide are manufactured from a single block (1) of material, in which the frame plate, guide and guide plate connected by the elastic line hinges are formed by the provision of bores (3), slits (6) and/or recesses (2).

Abstract: The present invention relates to a method in a press of pressure cell type comprising a forming tool and, separated therefrom, a diaphragm, which define a forming space in which a blank is inserted for forming thereof against the forming tool by pressing the diaphragm against the blank. A blank portion projecting from the forming space is gripped by means of at least one gripping device and the connection between the blank and the gripping device is shielded from the diaphragm at least when the diaphragm is pressed against the blank. The invention further relates to a press of pressure cell type and a tray device.

Abstract: The present invention relates to a press of pressure cell type, a tray for use in a press of pressure cell type and a method. The tray comprises a tray frame, which defines a space for arranging a forming tool and/or a work-piece. Prestressing means are arranged on the external surface of the tray frame and induce a compressing prestress which acts in planes parallel to the plane of the tray. The tray frame presents a curvature along its entire circumference.

Abstract: A press of pressure cell type includes a press body part. The press body part comprises a number of plates with the planes of the plates oriented parallel to the planes of the adjacent plates. Each plate has a through hole which has the same center axis as the hole of the adjacent plates. Prestressing bands which induce a compressing prestress acting in the planes of the plates are arranged on an external edge surface of each of the plates.

Abstract: A hydraulic tool working head including a frame; a ram movably connected to the frame in a first longitudinal direction, wherein the ram is adapted to be moved relative to the frame by hydraulic fluid; and a movable member connected to a first end of the ram by an automatic adjusting connection. The movable member is adapted to move relative to the ram in a second direction perpendicular to the first direction.

Abstract: A progressive pressing apparatus having multiple pressing stages, each including a gate-shaped supporting frame on which one of a plurality of die sets is detachably and adjustably disposed. The apparatus further includes rails above the pressing stages. Each supporting frame is movable along the rails, and includes a hydraulic cylinder which applies a pressing force to the corresponding die set while extending in the vertical direction. Two opposite upper end portions of each supporting frame are provided with rolling wheels which are capable of rolling along the upper surfaces of the rails. Each supporting frame includes a pair of columns. Each pair of columns is respectively provided with a pair of securing units. Each pair of securing units secures the corresponding supporting frame to a base in a state such that the rolling wheels of the corresponding supporting frame are not in contact with the rails.

Abstract: A platen design is provided for a C-frame press whereby an un-stiffened platen column connected in series to the tie rod; therefore, the stiffness of the tie rod is reduced. The unique design improves the fatigue strength of the tie rod by moving the reinforcing webs away from the column and directly onto the platen main body portion.

Abstract: A hydroforming apparatus includes upper and lower platens that are connected together by tie rods extending through respective compression tubes. An upper die section is carried on the upper platen by a generally C-shaped suspension arm, while a lower die section is carried on the lower platen. The upper and lower die sections have recessed areas formed therein that define a die cavity. Lift assemblies are provided on the lateral ends of the hydroforming apparatus for selectively elevating the lower die section upwardly into engagement with the upper die section. When the lower die section is elevated by the lift assemblies, a workpiece is enclosed within the die cavity. A bolster is then moved between the hydroforming die and the lower platen. A cylinder array containing a plurality of pistons is next hydraulically actuated so as to securely clamp the hydroforming die between the cylinder array and the lower platen.

Abstract: A hydroforming apparatus for concurrently performing two or more hydroforming operations includes a frame that is sized to support hydroforming dies in a stacked relationship. Each of the dies includes a pair of cooperating die sections having respective recesses that define a die cavity. Guide pins and actuating cylinders, attached to platens on which the die section are supported, move in coordination with a ram and assist in moving die sections that are distant from the ram. When the die cavities are opened, hollow tubular blanks are inserted between the spaced apart die sections of the first and second die. Next, the ram and the support mechanism move such that the pairs of cooperating die sections of the first and second dies engage one another. End feed cylinders are then moved laterally into engagement with the end the tubular blanks to facilitate the filling thereof with a hydroforming fluid.

Abstract: The tensioner assembly is provided for clamping at least two objects and comprises a tie rod member, a thrust ring positioned on the tie rod member against one of the objects, a first retaining member for removably engaging a distal end of the tie rod member, and a second retaining member for removably engaging the distal end of the tie rod member between the thrust ring and said first nut member and spaced apart therefrom. Each of the first and second retaining members is provided with a set of jackbolts adapted to engage complementary holes therein and to extend from the holes to compressively bias the thrust ring. The total load experienced by the tensioner assembly is shared by two retaining members so that load carried by the first retaining member remains substantially constant during operation, while the second retaining member is subject to stress variation.

Abstract: In a cube space having high rigidity, the following members are provided: a die holder (103) which can be pulled out forward, a punch holder (47) fixed to a separate bridge structure, a striker which can be positioned in an XY plane for selecting a desired punch P, a striker supporting frame (59) which can be positioned in the XY plane for selecting a desired punch P and which can slide in a horizontal direction, and a clamp device (232) having clamp arms (233) which are provided with a vertically movable ram (37) and which can enter between the punch holder (47) and the die holder (103) and which hold the opposed ends of the workpiece W. Therefore, it is possible to constitute a punch press (1) which is suitable for precise machining of a thin plate and in which tools can easily be exchanged.

Abstract: A mold clamping apparatus includes a frame including a holding portion for holding a mold and an open portion allowing the mold to be inserted into/taken out from the holding portion in a direction of the longer side of the mold, a mold moving device for moving the mold to insert/take out the mold into/from the holding portion through the open portion in the frame, and a mold opening/closing device for opening/closing the mold located outside the frame. This mold clamping apparatus is capable of holding the mold securely in a closed state resisting a pressure acting to open the mold and allows reduction of energy consumption, equipment maintenance cost, production cost, and the size thereof.

Abstract: A tool assembly (1) in which a tool closing force (CF) is applied to a forming tool (2) by means of closing force actuators (40). In a tool closing position each closing force actuator engages a lower tool section (4) and an upper tool section (3) through tool clamps (31A, 31B). The clamps take up the major portion of the tool separating force generated by the internal pressure of the forming tool. Only a small portion of the tool separating force has to be counteracted by the closing force actuators, the size of which can be substantially reduced. The elasticity of the clamp material results in a widening of the clamp under the influence of the tool separating force, and this clamp widening is compensated by the readjustment of the clamp through the application of the closing force.

Abstract: A simple structure is provided for the frame by changing the orientation of the crank mechanism so as to orient the crankshaft longitudinally. More specifically, the structure includes two ring-shaped main plates are provided in the front and back and are connected by means of connector plates. An upwardly and downwardly movable slide for the machine press is provided in a space demarcated by four column portions of the ring-shaped main plates and a bolster is provided atop a bed of the ring-shaped main plates. A crankshaft oriented longitudinally is provided at the crown portion of the ring-shaped main plates, and the slide is moved upward and downward by a drive mechanism that includes the crankshaft.

Abstract: A structure for presses includes: a resistant structure having at least one resistance element having a flat annular element internally of which and in diametrically opposite positions two facing surfaces are arranged, between which facing surfaces at least one tool can be inserted, for exerting a pressing action and compressing between two bodies, the two facing surfaces receiving equal and opposite reactions to the pressing action. Cuts at ends of the facing surfaces involve a total thickness of the facing surface. Each cut includes a first tract parallel to a pressing direction and a second circular part; the circular second part constituting a snug seating for discs. Interpositioning elements are provided for being interpositioned between ends of the facing surfaces so that two resultants, parallel to the pressing direction, of action exerted on each facing surface are located externally to centers of corresponding circular second parts.

Abstract: The invention metal working machine includes a stationary frame and a moving frame. Both the stationary frame and the moving frame carry opposite corresponding tool dies that perform metal working operations when the moving frame translates relative to the stationary frame. The moving frame is arranged so that one end can move while the other end remains stationary. Hydraulic cylinders on each end of the metal working machine are connected by pivot joints between the stationary frame and moving frame. When both of the hydraulic cylinders are activated in the same direction, the entire moving frame moves up or down relative to the stationary frame. If only one of the hydraulic cylinders is activated, only one side of the moving frame translates while the other side of the moving frame moves only slightly.

Abstract: An apparatus of superplastic forming for massive production is able to install a plurality of forming sheets and plates in one apparatus using dies of multi-layer structure and to form the sheets and plates with compressed gas, and therefore, a plurality of products can be fabricated rapidly and massively with a cheap facility investment. If preforms are used instead of flat blank sheets, the productivity can be improved greatly and the products of uniform thickness can be formed massively.

Abstract: A shutheight adjustment system incorporating tie rods and accompanying hydraulic tie rod nut assemblies in connecting a bed to a bolster of a mechanical press for dynamically altering the tensioning of the tie rods. Each hydraulic tie rod nut assembly includes a cylinder with an inner sliding piston threadably engaging the tie rod. A pressurizing mechanism injects pressurized fluid within a chamber formed by the piston and cylinder. By increasing pressure within the chamber of the hydraulic tie rod nut assembly, compression between the press bed and press bolster may be increased, thereby increasing the press shutheight.

Abstract: The present invention relates to a press of pressure cell type and a method for manufacturing a press body part. The press body part comprises a number of plate-shaped lamellar means having the planes of the plates oriented parallel to the planes of the plates of the adjacent lamellar means. Each lamellar means has a through hole which has the same centre axis as the hole of the adjacent lamellar means. Prestressing means which induce a compressing prestress acting in the planes of the plates are arranged on an external edge surface of the main part of the lamellar means. The invention also relates to a lamellar means of a press body part.

Abstract: The present invention relates to a press of pressure cell type and a tray for use in a press of pressure cell type. The tray which defines a space for arranging a forming tool and/or a workpiece has prestressing means arranged on the external surface of the tray. The prestressing means induce a compressing prestress which acts in planes parallel to the plane of the tray.

Abstract: A portable, hand held, apparatus for crimping a hose fitting to the end of a hose, including a unitary frame having four sides surrounding an open middle section, wherein one of the sides is a base with a receiving opening extending therethrough for housing crimping componentry and another of the sides is a top portion for attaching a cylinder, piston, and a pusher. The outer surface of each of the remaining two sides has mounting holes for attaching a power unit. The unitary frame includes a handle for manual lifting purposes, and has multiple support surfaces enabling the crimping apparatus to be variably positioned during the crimping process. The unitary frame also includes blind mounting holes on three sides for attaching various mounting brackets, thus enabling the apparatus to be oriented in any desired angular position during the noted crimping process.

Abstract: A hydraulic tool having a frame, and a movable adapter. The frame defines a workspace with an anvil adapter at one end and a substantially flat face guide surface on one side of the workspace. The movable adapter is used for working a piece in the workspace against the anvil adapter. The movable adapter is movably mounted to the frame to move in the workspace relative to the frame along an axis of translation. The movable adapter has a substantially flat face seating surface seated against the guide surface of the frame. When the movable adapter is moved, the seating surface of the movable adapter rides upon the guide surface. The seating surface and guide surface interface with each other for maintaining the movable adapter in a predetermined orientation relative to the frame.

Abstract: A hydraulic tool having a frame, and a movable adapter. The frame defines a workspace with an anvil adapter at one end and a substantially flat face guide surface on one side of the workspace. The movable adapter is used for working a piece in the workspace against the anvil adapter. The movable adapter is movably mounted to the frame to move in the workspace relative to the frame along an axis of translation. The movable adapter has a substantially flat face seating surface seated against the guide surface of the frame. When the movable adapter is moved, the seating surface of the movable adapter rides upon the guide surface. The seating surface and guide surface interface with each other for maintaining the movable adapter in a predetermined orientation relative to the frame.

Abstract: A process for operating a workpiece transport system for a press arrangement includes driving, the system by at least one driving device which can be held in a stoppage position with a braking device. By application of a predefined torque by the driving device, the functioning of the braking device is checked.

Abstract: The hooking system of the lid (4) to the sliding plate comprises grooves (27) provided in the heating ceramic plate (11), to accommodate rails made of refractory steel. These rails (26) enable on the one hand to fix the ceramic plate (11) below the metal plate (10), via tension rods (14) and, on the other hand, to hook the lid (4), using H-section parts (22) that nest into T-shaped grooves (25) of the said rails and in identical T-shaped grooves provided opposite to one another in the upper section of the lid (4).

Abstract: An hydraulic press includes a head member removably connected at each opposite end to a leg and formed of a unitary sheet of steel rolled into a generally U-shaped transverse cross-section. The head member includes a reinforcing tube at its mid portion. The press includes a bed supported by the legs and disposed beneath the head member. The bed is reinforced at its mid portion by a pair of diagonally disposed spacer plates in the interior of the bed and at the exterior of the bed by a breast plate permanently attached to the front panel and a back plate permanently attached to the rear panel of the bed. At least one additional hole is provided and bored transversely through each end of the bed and positioned so as to correspond to and align with the holes in each leg that receive the pins that support the bed. The pressing force can be provided by an hydraulic jack that can be attached to the head member or to a carriage that is slidably disposed between the head member and the bed.

Abstract: A simple structure is provided for the frame by changing the orientation of the crank mechanism so as to orient the crankshaft longitudinally. More specifically, the structure includes two ring-shaped main plates are provided in the front and back and are connected by means of connector plates. An upwardly and downwardly movable slide for the machine press is provided in a space demarcated by four column portions of the ring-shaped main plates and a bolster is provided atop a bed of the ring-shaped main plates. A crankshaft oriented longitudinally is provided at the crown portion of the ring-shaped main plates, and the slide is moved upward and downward by a drive mechanism that includes the crankshaft.

Abstract: A hydroforming apparatus includes an upper platen carrying an upper die section and a lower platen carrying a lower die section. The platens are connected together by tie rods extending through respective compression tubes. The upper and lower die sections have recessed areas formed therein that define a die cavity. When the lower die section is moved to a lowered position, a workpiece can be disposed in the recessed area formed therein. Then, the lower die section and the workpiece are elevated by cylinders such that the workpiece is enclosed within the die cavity and mechanically deformed by the cooperated upper and lower die sections. A support block is then moved between the hydroforming die and the lower platen. A cylinder array containing a plurality of pistons is next hydraulically actuated so as to securely clamp the hydroforming die between the cylinder array and the lower platen.

Abstract: A feedback control system for use in a press machine is adapted to monitor and adjust the clearance between the gib and slide. A connection bolt provides a connection between the gib and frame upright. A thermal applicator selectively heats and/or cools the connection bolt to induce a controlled deformation of the bolt, namely, an expansion and/or contraction, respectively. In one form, a heat-induced elongation of the bolt along its longitudinal dimension actuates a corresponding displacement of the gib towards the slide to regulate the spatial relationship therebetween. A sensor provides a measure of any possible clearance between the gib and slide. The clearance measurement is compared to allowable reference clearance data. A controller controls the heating and/or cooling action in accordance with the comparison results, thereby controllably moving the gib. The gib may be selectively displaced to optionally effectuate a partial or full close-out of the existing clearance.