Abstract: The invention relates to a method and apparatus for adjusting the width of the bending jaws in a bending machine. The total width (L) of the bending jaws is formed by using jaw parts and edge pieces in the following manner:a first set (R.sub.1) is elected to form a group of jaw parts of different widths for so-called fine adjustment, one at a time (R.sub.1n) being at the operational point (T) of the bending jaws,a second set (R.sub.2) is elected to form a group of jaw parts with identical width and to be separate from the edge pieces (RK.sub.1, RK.sub.2) for so-called coarse adjustment, wherein the width of the bending jaws required at a time is elected according to the equationL=R.sub.1n +N * R.sub.2i +C,whereinL=the width of the bending jaws,R.sub.1n =the width of the jaw part (n=0 . . . M) elected from the first set (R.sub.1),N=the width of the jaw parts of the second set (R.sub.2), i.e. a constant,R.sub.2i =the number (i=0 . . . k) of jaw parts of the second set (R.sub.

Abstract: A forge machine has a main body, a motor disposed on a top portion of the main body, a flywheel disposed on an upper portion of the main body and driven by the motor, an eccentric shaft driven by the flywheel, a slide block disposed on the upper portion of the main body, a middle portion of the eccentric shaft inserted in a link seat, a round hole formed on a lower end of the link seat receiving a first drive arm and a second drive arm, an adjusting seat disposed between the first drive arm and the second drive arm, a ball screw rod having a hexagonal flange and a ball formed on a lower end of the ball screw rod, the ball screw rod inserted through a hollow disk, the hollow disk blocked by the hexagonal flange, the ball inserted in an oil press box. An oil pipe is connected to the oil press box and an oil adjusting box. An upper end of the ball screw rod is inserted in the adjusting seat. An axle passes through the slide block, the first drive arm and the second drive arm via the round hole.

Abstract: There is disclosed a method of exchanging die sets in a press system. First, a state is established in which a die set having been used by the press system is held with a die holder means provided to a slide of the press system and is lifted up by the said slide. In this state, into an interior of the press system a carrier vehicle is transported having a first space in which a die set to be used next by the press system having been and a second space capable of accepting the said used die set, which is then dislodged from the said slide and is mounted on the carrier vehicle. Thereafter, the carrier vehicle is displaced to such a place that the said die set to be used next may be kept located below the said slide. Then, a state is established in which the said die set to be used next is held by the die holder means and is lifted up by the said slide. Thereafter, out of the interior of the press system, the said carrier vehicle is transported having the said used die set mounted thereon.

Abstract: A folding press is disclosed having a frame supported by a fixed base; a fixed beam and a ram beam supported by the frame, the ram beam being movable relative to the fixed beam; a pair of folding blades attached to the beams for folding a sheet of metal; and manipulation means for grasping the sheet of metal and introducing the sheet of metal between the folding blades, the manipulation means being attached to the ram beam. The folding blades are so disposed as to produce a horizontal working stroke relative to the fixed base, and the manipulation means comprises a plurality of arm members rotatable in relation to each other. In operation, the manipulation means grasps a sheet of material and introduces it between the blades while maintaining the sheet of material in a substantially vertical position relative to the fixed base, thereby minimizing folding errors caused by a horizontal disposition of the sheet of material.

Abstract: An elastic matrix forming press comprising a frame including at least a bottom beam and a top beam united by link means, an actuator bearing against the bottom beam, and a forming assembly comprising an anvil resting on the piston of the actuator, a tool-carrier table, and a container including an elastic cushion engaged against the top beam, wherein said forming assembly: anvil, tool-carrier table, container, and elastic cushion, includes means enabling it to be exchanged for another having a tool-carrier table of different area, the section of said tool-carrier table corresponding to the inside section of the container.

Abstract: Apparatus for separately adjusting the shut height of individual tools on a progressive forging machine "on the fly" when the machine is running. The apparatus includes individual load bearing wedge blocks on the slide for supporting associated tool cassettes. Each wedge block is displaced by a secondary wedge-like cam driven by an associated power actuator. The wedge geometry yields a compact, rugged construction. The cassettes are supported by precision located surfaces that allow desired axial adjustment without loss of alignment with opposed dies.

Abstract: A travelling clamp unit of the type for extending and retracting a T-head clamping cylinder into and out of a T-slot of a press has a main frame which supports clamping cylinder drive means and the clamping cylinder when it is in a parked position in which it is retracted from the T-slot of the press. The main frame has rails which support the clamping cylinder T-head in the parked position and which are removable from the main frame so that the T-head can be dropped out of the bottom end of the main frame for removing the clamping cylinder from the travelling clamp unit.

Abstract: A flexible drive member for pushing and pulling an article includes a toothed belt section and ridge members which are arranged on the opposite surface of the toothed belt section along the length direction of the toothed belt section. The ridge members abut adjacent ones when the toothed belt section extends straight. The ridge members include respective hold portions which hold an elongated member, such as a hose and a wire. The abutment of adjacent ridge members enables transmission of pushing force. A fluid-operated device moving apparatus utilizes the flexible drive member which is arranged to have a T-shaped transverse cross-section corresponding to a T-shaped groove in which the flexible drive member can be guided. A fluid-operated device, such as a hydraulically operated clamping device, is coupled to one end of the flexible drive member.

Abstract: A mechanical press having a very precise shutheight control system. The press includes a bed connected to a frame with a slide connected with the frame for reciprocating motion opposing the bed. The slide and bed together define a shutheight of the press. A drive mechanism is attached to the frame for driving the reciprocating slide, the drive mechanism includes a drive piston and a tie rod. The shutheight control system includes a chamber located between the drive piston and tie rod with a pressurizing mechanism in communication with the chamber for selectively pressurizing the chamber with a predetermined pressure. The pressurizing mechanism causes the tie rod to one of expand and contract to thereby control press shutheight.

Abstract: An index-feed machining system having such a construction that a plurality of machining units on the bodies of which cassettes incorporating a plurality of machining tools are detachably mounted are disposed at intervals of mP (m being a given positive integer, P being a workpiece-feeding pitch) in the workpiece-feeding direction, corresponding to a plurality of machining processes; the machining processes being sequentially performed by the machining units at the index-feed pitches of the workpiece, in which a drive for driving the machining means are provided in the cassettes comprising any machining units.

Abstract: Method and Apparatus for economically providing an automatic tool changing capability to a numerically controlled punch press, without the addition of servo drives dedicated to the tool changer. The punch press has a back rail carrying work clamps and positionable along an X axis for positioning the workpiece along that axis. The punch and die assembly is carried in a work head which is servo driven along a Y axis, so that the pair of servos accomplish X, Y positioning with respect to the workpiece. A plurality of tool cartridges are carried on the back rail. To accomplish a tool change operation, the X axis servo is indexed to bring a selected tool holder to a tool change position, and the remaining positioning for making the tool exchange (either into an empty cartridge or from a full cartridge) is accomplished by Y positioning of the tool head, without the need to alter the workpiece Y position or index an auxiliary mechanism for a tool change operation.

Abstract: A hot forging press for use in closed-die hot forging operations wherein the forging press may be operated in conjunction with an automated multi-station transport sub-system to move parts through a progressive multi-station forging die. The press includes a press bed and vertically moveable ram for supporting lower and upper dies, respectively. A drive mechanism for driving the ram is provided with an adjustment system whereby the shut height of the press may be adjusted during operation of the press. A programmable logic controller is provided for controlling the press operations including the shut height adjustment, transport of parts by the transport sub-system and operation of a kickout sub-system for kicking parts out of the dies. Further, the press includes an enlarged tonnage zone whereby the full tonnage zone encompasses a plurality of the dies in their entirety.

Abstract: In a production line both the base frame and also the working area is subdivided into modular assemblable modules, the base unit having three reception positions which can be provided with slide-in working units and receptacles for driving units and a trolley transferring the particular working unit. The working unit, after a control console has moved out of the sliding in path, can be moved in and out parallel to the horizontal separating plane and transversely to the conveying direction and can then be adjusted and locked. Thus, with the same base units a randomly long basic frame can be created for randomly succeeding working stations.

Abstract: A method and apparatus for replacing the dies (10, 13) in thermoforming equipment provided with a base (2), a supporting structure (12) supported by the base (2), a supporting head (9) for a counter-die (10) carried by the supporting structure, a supporting table (12) for a die supported by the base (2) beneath the supporting head (9), actuation means for the head (9) and for the supporting table (12) to control a sequence of controlled insertion and withdrawal movements between the head (9) and the supporting table (12) to cause the die (13) to close against and open away from the counter-die (10), feed means for a sheet of thermoformable material for pressing designed to operate synchronously with the activating means and including a pair of longitudinal members (15) to advance the sheet in a direction substantially normal to the direction in which the die (13) opens and closes.

Abstract: The turret punch press has a body frame (3); a ram (51) for striking a punch (41) to punch out work (W) in cooperation with a die (35); an upper turret (39) rotatably mounted on the body frame and having a plurality of punches (41), any desired punch being selectively located at a punch area (A1); and a lower turret (33) also rotatably mounted on the body frame and having a plurality of dies (35), any desired die mated with the desired punch being selectively located at the same punch area (A1). In particular, the upper turret (39) is formed smaller in diameter than the lower turret (33), and further the upper turret (39) is dislocated eccentrically from the lower turret (33) toward the punch area (A1) to provide an open die exchange area (A2) over a part of the lower turret (33). Or else, the upper turret (39) is formed with a cutout portion (53) to provide an open die exchange area (A2) over a part of the lower turret (33) when the upper turret is disposed concentrically on the upper turret (39).

Abstract: A swaging machine is provided with connecting rod-like swaging hammers, which are driven by eccentrics and radially guided in a machine frame with respect to the axis of the eccentric shaft and for a driving connection are provided at that end which faces the eccentric with a sliding surface in sliding contact with a slide ring that surrounds and is rotatably mounted on the eccentric. A particularly simple design of the machine is achieved in that radially inner end of the hammer and the slide ring are merely non-positively coupled and a compression spring means supported against the machine frame apply pressure to the swaging hammer and urge the sliding surface at the radially inner end of the hammer against the slide ring.

Abstract: An electrical terminal applicator is disclosed for crimping terminals onto wires, with the terminals being secured on a strip in a side-by-side relationship. An applicator ram is drivable in a first path through a working stroke towards, and a return stroke away from, a crimping anvil. A crimping die cooperates with the anvil to crimp a portion of the terminal onto a wire during each working stroke of the ram. A track guides the strip in a second path which intersects the first path of the ram and includes a track portion mounted for adjustable movement in a direction transverse to the second path. An adjusting screw is threaded into a transverse hole in the movable track portion for adjusting the position of the track portion in the direction transverse to the second path. A locking set screw is threaded into the transverse hole for jamming against an end of the adjusting screw to lock the adjusting screw and, thus, the track portion in any position of adjustment.

Abstract: This invention relates to an arrangement at lower tools for edging presses and the like where a pair of jaws or pads are displaceable in at least the one direction by means of a system including obliquely arranged surfaces. The novelty lies in that there are arranged at a first sliding face of a sliding plate, a number of slots or recess (3) in pairs and positioned in opposing directions on each side of a central plane of the tool and at second inverted sliding faces each connected to a jaw or pad means (12) mirror inverted slots (8) having greater length than the former slots and in that in the shorter slots there are arranged keys having a depth adapted to the slots so that a protruding portion of each key projects into each of the elongated slots.

Abstract: In a turret punch press 1 provided with an upper rotatable turret 5 having a plurality of punches P and a lower rotatable turret 7 having a plurality of dies D, a diameter of the lower turret 7 is determined to be larger than that of the upper turret 5; rotational centers of the upper and lower turrets 5 and 7 are determined to be eccentric from each other; and on a line obtained by connecting the two rotational centers of both the upper and lower turrets when seen on a plane, a position at which the upper and lower turrets 5 and 7 are overlapped upon each other is determined to be a punching position 21 and positions remotely opposite to the punching position 21 and at which the upper and lower turrets 5 and 7 are separated from each other are determined to be indexing positions 61 at which the angular positions of the punch P and the die D can be both indexed.

Abstract: In a bending machine for wire or strip materials comprising a machine body (1) defining a work face (2) and having disposed thereon at least one planar and undercut guide path (F1 to F3) for tool mounting carriages (S1 to S4) mounted thereon for displacement therealong at least between operating positions by means of a selectively remote-controlled displacement drive system (7) and for being locked on said guide path in the selected operating position, each tool mounting carriage (S1 to S4) defining an operating axis (A1 to A4) extending substantially perpendicular to the respective guide path, and being provided with a tool carrier (6) mounted for displacement along the operating axis (A1 to A4) by means of an operating actuator (5), at least one guide path (F1, F2, F3) is formed with an arcuate curvature in the guide plane, the curvature preferably following a circular arc (K), and the concave side of the curvature facing towards a material feed axis (3).

Abstract: An electrical terminal applicator includes an applicator ram drivable by a press ram through a working stroke towards, and a return stroke away from, a crimping anvil. A first crimping die is mounted on the applicator ram for cooperation with the anvil to crimp a first portion of an electrical terminal onto an exposed end of a conductive core of an insulated electrical wire during each working stroke of the applicator ram. A second crimping die is mounted on the applicator ram for cooperation with the anvil to crimp a second portion of the terminal onto the insulation of the electrical wire during each working stroke of the applicator ram. A first adjusting plate is mounted for rotation about an axis on and extending in the direction of movement of the applicator ram to selectively interpose projections between the press ram and the applicator ram to adjust the shut height of the first and second crimping dies.

Abstract: A two piece cushion pin system including a cushion pin carried in the bed of a press engaging the cushion and a cushion pin extension carried in a rolling bolster engaging the cushion pin and the die mounted on the bolster. The bolster is rolled into and out of the press with the cushion pins and cushion pin extensions in place.

Abstract: An apparatus for rapidly and accurately correcting the bottom dead center position of the slide of a mechanical press during the operation of the press. The apparatus includes a hollow cylindrical member, disposed between a slide and a die-height adjusting screw mechanism, that can be expanded or contracted along its axis. Also provided are a bottom dead center position setter, a bottom dead center position detector for detecting a bottom dead center position of the slide, and a force applying unit which supplies a contraction force to the hollow cylindrical member. A correction control unit controls the force applying unit to expand or contract the hollow cylindrical member in order to correct the slide bottom dead center position, so that a detected bottom dead center position coincides with the set bottom dead center position.

Abstract: An apparatus for working metal workpieces comprises a frame (1), a rotatable tool turret (29) movable up and down and carrying a plurality of punch tools (32) which can be moved into a working position by rotation of the tool turret. The frame (1) is provided with a corresponding stationary rotatable tool turret (33) as carrier for the die tools (34) associated with said punch tools which die tools (34) can be moved into a corresponding working position by rotation of said tool turret (33). The apparatus is made in such a manner that the centre line of the punch tool (32) located in the working position and the corresponding die tool (34) located in the working position intersects the axis of the tool turret (29) and/or the axis of the die tool turret (33).

Abstract: An apparatus and method for facilitating the installation of a dieset in a vertically reciprocating press which includes cooperating horizontal reciprocation guides to facilitate horizontal reciprocation of a dieset with translation of a continuous workpiece passing therethrough. The apparatus comprises a loading platform which is disposed in a plane substantially parallel to that defined by the uppermost surface of the reciprocating press platform. The loading platform includes an elevatable portion located centrally therein which is capable of elevating the dieset so as to achieve a proper alignment of the horizontal reciprocating guides of the dieset with cooperating horizontal reciprocating guides of the reciprocating press. In addition, the elevating platform features guides which establish a lateral alignment of cooperating reciprocating guides. An air cylinder is used to define the alternate elevations of the elevating platform.

Abstract: A turret punch press and a die set exchange device for the press are disclosed. The punch press includes a turret carrying die sets in die set attaching areas, and a die set exchanging device having a plurality of housings on a carriage, which moves horizontally between the turret and a die storage section to take out and charge die sets with the turret and the die set storage section to exchange the die sets for the next use.

Abstract: An apparatus for adjusting bottom-dead-center position of a slide in mechanical press including a connecting rod 4 connected to a crank shaft 3, and a hydraulic cylinder 15 provided between the connecting rod 4 and a slide 5. The hydraulic cylinder 15 has a piston rod 16 having one end connected to the connecting rod 4, a cylinder body 17 capable of moving relative to the piston rod 16, a hydraulic chamber 27 formed below a piston portion 16A, and a pressure adjusting means 45 connected to this hydraulic chamber 27. An extending member 19 for connecting the connecting rod and the cylinder body is fitted around an outer periphery of the piston rod 16, and the adjustment of the bottom-dead-center position of the slide can be effected as the extending member 19 is extended by the adjustment of hydraulic pressure within the hydraulic chamber 27.

Abstract: In order to change punches and dies on upper and lower turrets during punching operation on a workpiece, a turret punch press includes a plurality of rotatable holder frames each supporting the upper and lower turret. Thus, when a first set of upper and lower turrets supported on a first holder frames is located in a working region under a striker for a punching operation, a second set of upper and lower turrets supported on a second holder frame is located in a position outside the working region, whereby a punch and die supported on the second set of the turrets can be changed for another punch and die during punching operation. In the preferable embodiment, the holder frame is removably supported on a main frame of the turret punch press, whereby the holder frame can be changed for another holder frame during punching operation.

Abstract: A metal sheet processing apparatus for replacing dies with one another and for positioning a plate material in longitudinal directions. The metal sheet processing apparatus includes left and right side frames (3L, 3R), upper (5) and lower (7) tables supported by the side frames, one of the upper and lower tables serving as a vertically movable ram, and dies (17,19) disposed in a processing zone between the upper and lower tables (5, 7), for processing a plate material (W). A back gauge unit (41) is moved and positioned in longitudinal directions to position in the longitudinal directions the metal sheet (W) to be processed by the dies (17, 19). A die storage section (37) is defined behind the upper table (5). Part of the back gauge unit (41) is vertically movable and capable of supporting and replacing the dies (17, 19) between the die storage section (37) and the processing zone.

Abstract: A method of distributing rotational power from a common drive shaft assembly to two or more stamping and forming modules is disclosed. The method includes shortening the length of stroke of the ram assemblies of selected modules thereby permitting them to achieve higher working forces at their stamping and forming tooling than other modules whose ram assemblies have a longer length of stroke.

Abstract: A bending machine having an upper punch containing portion, or beam, and a lower die containing portion, or beam, is modified by incorporating a controlled expandable pressure device whereby the pressure applied to a work material is uniformly distributed throughout the surface of the material. In a first embodiment, the device is mounted in the upper and lower machine portions; in a second embodiment, the device is mounted only in the upper machine portion; in a third embodiment, the device is mounted only in the lower machine portion; and in a fourth embodiment, segmented devices are mounted in the upper machine portion and a single, elongated device is mounted in the lower machine portion.

Abstract: In order to change punches and dies on upper and lower turrets during punching operation on a workpiece, a turret punch press includes a plurality of rotatable holder frames each supporting the upper and lower turret. Thus, when a first set of upper and lower turrets supported on a first holder frames is located in a working region under a striker for a punching operation, a second set of upper and lower turrets supported on a second holder frame is located in a position outside the working region, whereby a punch and die supported on the second set of the turrets can be changed for another punch and die during punching operation. In the preferable embodiment, the holder frame is removably supported on a main frame of the turret punch press, whereby the holder frame can be changed for another holder frame during punching operation.

Abstract: An automated die transfer system for location adjacent to one end of a press brake bed. It includes an upper and lower tier storage rack for storing a die, or for transferring a die to a press brake bed. The racks may have different widths, and rollers spaced along their length. A wheeled carriage on rails carries the storage rack. A first drive motor moves the carriage horizontally along the tracks, while a second drive motor is linked to a drive for raising and lowering the storage rack. A control system, which includes a multi-axis axis control, is connected to both motors. The control panel is mounted on a hinged support arm. In use, the control panel is pivoted to the front of the press brake, turned on, and the multi-axis control is used to control the first drive motor to move the carriage into alignment with one end of a press brake bed, and is then used to control the second drive motor to cause the storage rack to move vertically adjacent to the end of the press brake bed.

Abstract: An apparatus is provided for prealigning multiple brake dies to facilitate die changes in a brake press. The apparatus comprises a die holder including a floating adapter attachable to the movable ram of the brake press, and a pair of subplates adapted to receive the multiple brake dies in a semipermanent and prealigned arrangement to form a subassembly which can be installed into the die holder with minimum setup time. The floating adapter permits transfer of loads from the press ram to the multiple brake dies in the subassembly without also communicating undesirable bending stresses therethrough. Also, the die holder includes guides for directing the subplates along a true linear path toward and away from each other. Secondary equipment used with the brake dies can be attached directly to the subplates, thus further reducing die change setup time.

Abstract: A rear portion of a chain transmission member (21) is connected to a push/pull drive device (19) disposed in the rear portion of the metal mould replacing stand (3) while a front portion of the transmission member (21) is connected to the advancing/retreating member (22). A guide rail (23) for accommodating the transmission member (21) and the advancing/retreating member (22) is placed in the upper portion of the replacing stand (3) so as to extend in the fore and rear direction. A front portion of a hook (28) is supported vertically swingably by a front portion of the advancing/retreating member (22) through a pin (29) and a concave engaging portion (30) is formed in the rear swingable portion of the hook (28) so as to face upward. An engaged portion (34) is formed in the rear portion of the metal mould (7) so as to project downward and the engaging portion (30) is adapted to be engaged with the engaged portion (34) by means of a spring (36) from below.

Abstract: A shutheight adjustment mechanism of a press including a male threaded member threadedly engaged to a female threaded member with a clearance space therebetween is flooded with a liquid to reduce undamped free movement between the threaded members. Liquid injected in the clearance space causes a squeeze-film to be created, capable of supporting high impulse working loads. Seals define the clearance space to assure that the entire clearance space is filled with liquid. In one embodiment, the shutheight adjustment mechanism is included in the press slide.

Abstract: A materials press comprising a press table and a sliding table. The contact surfaces between the press table and the sliding table have surface contours which conform to a bending line which would occur in a planar press table when it is placed under a load.

Abstract: A turret punch press (1) includes an upper turret (5) for holding punches (P) and a lower turret (7) for holding dies (D). The diameter of the lower turret (7) is larger than that of the upper turret (5) so that a punch exchange position (61) and a die exchange position (61), which are opposite to a punching position (21), are separated away from each other. This arrangement enables the die to be exchanged from above the same, expands the freedom of designing of dies, improves workability, and realizes an automatic die exchange in an automatic index station.

Abstract: A turret punch press and a die set exchange device for the press are disclosed. The punch press includes a turret carrying die sets in die set attaching areas, and a die set exchanging device having a plurality of housings on a carriage, which moves horizontally between the turret and a die storage section to take out and charge die sets with the turret and the die set storage section to exchange the die sets for the next use.

Abstract: The shut height of a crimping die set (9) for crimping an electrical terminal (T) on an anvil (22) to a lead (L) is adjustable stepwise by means of a disc (60) which can be driven by a servo motor (M1) to a plurality of angular positions each setting a theoretical ideal shut height for a particular combination of lead and terminal sizes. Since anvil wear, in particular, and/or minor variations in lead and terminal dimensions can falsify the ideal crimp height set, the actual crimp height achieved, is measured electronically or mechanically, and the height of the anvil (22) is automatically adjusted in accordance with such measurement, by means of a further servo motor (M2) to adjust the shut height of the die set (9) and anvil (22), so that the ideal shut height is achieved.

Abstract: An apparatus is a press line includes presses along a material flow direction for stepwise processing of a workpiece. A transfer device moves each workpiece from one press to the next in the press line. The transfer devices are displaceable transversely of the press line. Further, a carriage is included for each press for transport of tools, the carriage being drivable along tracks. To permit rapid tool change and maximum utilization of the space surrounding the press line, the carriage is provided with a first end portion fitted with equipment for transport of a tool to or from a press, and with a second end portion which carries the transfer device so that this projects cantilevered out from the carriage.

Abstract: A shut height adjustment device is provided for a press having press and tooling rams coupled in spaced relationship during a forward stroke of the press ram. The adjustment device includes a carrier defining a rotation axis and a plurality of apertures concentric with the rotation axis. A plurality of spacers are removably held in the plurality of apertures. Each of the spacers extends parallel to the rotation axis between a pair of opposite end surfaces which accurately define a length of each of the spacers. Different ones of the spacers have different lengths. The carrier is rotatably mountable on a post coupled between the press and tooling rams such that the different ones of the spacers may be selectively disposed between the press and tooling rams for engagement by opposed contact portions of the rams during the forward stroke of the press ram.

Abstract: A punch press provided with a tool magazine in which a plurality of tool mounting gondolas are supported movably in a vertical loop by and between two endless chains arranged vertically around sprocket wheels. Each gondola is supported at its supporting points which differ from each other at least in height, whereby the gondola is moved around in the loop without overturn when the sprocket wheels are rotated by a motor. Each of the gondolas stays at a manually tool changing location of the magazine where a table is provided for changing a number of tool assemblies in the magazine. The table has at least one guide which is positioned at two different heights, and along the guide tool assemblies or an upper and a lower die holders are drawn out of the gondola horizontally and placed in desired positions for replacement.

Abstract: A bending machine, capable of accurately bending a workpiece to a desired angle while protecting the workpiece from damage, comprises an upper die fastened to a ram, which is movable vertically and acts in cooperation with a stationary table to fix a workpiece to be bent, a bending blade selection arm which can be vertically swung by a bending blade selection cylinder and to which a downward bending beam and an upward bending beam are fastened in such a manner that the downward bending beam and the upward bending beam are able to swing while being vertically separated from each other, a downward bending blade for bending the workpiece downwardly when the downward bending beam is swung by a downward blade swing cylinder, and an upward bending blade for bending the workpiece upwardly when the upward bending beam is swung by an upward bending blade swing cylinder. Therefore, the upward and the downward bending blades do not rub the workpiece.

Abstract: A forging machine has a machine frame (1), radial forging rams (2) each adapted to carry a die (5), distributed angularly in a common working plane around the system axis (5); radial pressure-fluid piston (12) and cylinder (11) units on the machine frame, each with its cylinder forming or connected to a respective ram and having a stroke corresponding to the required ram stroke; and crossheads (15) mounted adjustably on the machine frame and each supporting the piston of a respective piston and cylinder unit. The stroke position of each ram is adjustable by adjustment of the crosshead towards and away from the system axis. A flange (19) is provided on each cylinder (11) and, a ring (17) extends around each ram, at the radially inner side of the flange (19), and is connected to the adjustable crosshead. Ram return piston and cylinder units (20,22) are disposed between the ring and flange.

Abstract: A pair of female die parts are mounted on a table of a lower frame of a folding press for forming a folding groove. One of the female die parts is slidably adjustable on the table with respect to the other female die part by an adjusting device including pairs of first and second tapered shims. The first and second shims of each pair are slidably arranged with respect to each other. The first shims are coupled with the adjustable female die part and the second shims of each pair are coupled with an actuating member connected to a driving device for adjusting the position of the second shims with respect to the first shims.

Abstract: Described herein is a drive unit for a machining center of modular construction comprising different work modules with tools which are positively controlled with respect to time, e.g. bending tools, front-feed devices, welding stations, assembly units or the like. The drive unit is constructed as a press which comprises the main drive for the machining center. The drive of adjacent work modules is effected via meshing toothed wheels which bridge the interface planes between the work modules, so that the drive unit can be integrated into the machining center in a space-saving and economical manner.

Abstract: The present invention provides a small-sized slide adjusting device for use in a forging press manufactured by a simplified manufacturing process. An adjusting lever is provided with a nut receiving section, and a nut to be received in the nut receiving section is provided with turning shafts in axial alignment. A mounting hole is provided through two sides of the receiving section, a disc having an eccentric through hole is fitted in each mounting hole, and the turning shafts of the nut are fitted in a respective through hole. In one embodiment the nut is provided with a female screw situated at a right angle to the axial alignment direction of the turning shafts, and one end of the screw is connected to a motor mounted on a slide. In the slide adjusting device of this construction, a variation in height occurs due to the circular arc motion at the time of inclined movement of the adjusting lever making a center of a wrist pin a fulcrum followed by turning movement of the disc and turning shafts.

Abstract: A punching machine has an upper (3) and a lower (4) tool magazine of the carousel type. Coaxially interacting punching tools (10) and die tools (19) are transferred in conjunction with tool changing from take-up positions in the upper and lower magazine to working positions respectively in the upper reciprocating punch holder (45, 49) of the machine and in the lower fixed die holder (29) of the machine. The upper punch holder is divided along an axial plane into one fixed parts and one radially moving part (45) relative to the magazine. The lower die holder is executed in the form of an uninterrupted ring. After the transfer of a punching tool from the upper magazine to the working position in the punch holder, the magazine (D.sub.1) with the other punching tools accommodated in it is raised in order to ensure the necessary clearance between these magazined tools and any projections and irregularities on the workpiece as it is fed and moved between the magazines during working.

Abstract: A forging machine has four forging rams (2) supported by the machine frame (1) for movement radially towards and away from the system axis (5) in an X arrangement at 90.degree. to one another. Piston and cylinder units (12-15) on the machine frame each have a ram (2) as a constituent part and have a stroke corresponding to the working stroke of the ram. A crosshead (16) supports each piston and cylinder unit, and is adjustable (23-25) relative to the machine frame for setting the stroke position of the ram. An adjustable die holder (6) at the radially inner end of each ram adjusts a die (5) thereon in a direction transverse to the radial direction of the ram, so that the dies can be positioned with parts of their working surfaces overlapping side surfaces of adjacent dies to form a closed forging pass contour smaller than the working surfaces of the dies. Radially extending drive shafts (58) external to the rams and gear units (54-59) at the radially inner ends of the shafts adjust the die holders.