Abstract: In the case of a method for automatically controlling an electrohydraulic pressing tool, in particular for producing pipe connections, to actuate the pressing tool a hydraulic piston is moved, in that fluid is pumped into a hydraulic cylinder by a hydraulic pump driven by an electric motor. When a limiting pressure in the hydraulic cylinder is reached, a pressure relief valve opens, and so the hydraulic fluid can flow into a reservoir. With the aid of a control device, a current drop at the motor is detected when the valve opens. The electric motor is switched off when the current falls by a predetermined value (?I) and/or decreases over a predetermined time period (?t) after reaching a limiting current.

Abstract: A method for bending a workpiece includes positioning a first bending surface adjacent to the workpiece; positioning a second bending surface adjacent to the workpiece; and moving the first bending surface and the second bending surface linearly toward the workpiece while the second bending surface rotates with respect to the first bending surface such that the first bending surface bends a first portion of the workpiece, the second bending bends a second portion of the workpiece, and the first portion of the workpiece, and the second portion of the workpiece are disposed on a first side of a bend line formed on the workpiece by the first bending surface and the second bending surface.

Abstract: A press working die assembly includes a pad secured to an upper die holder so as to be movable upward and downward, a machining slide cam slidable laterally along a cam surface and having a bending edge at one end thereof, a rotatable rotary cam having a bending portion for forming a negative angle portion of a workpiece, and a reciprocating driving apparatus configured to rotate the rotary cam to a workpiece machining position. The reciprocating driving apparatus includes a slide block having a cam surface for rotating the rotary cam in a predetermined direction on an front end side and a rotation impelling surface configured to rotate the rotary cam back to its original position, and a restoring action block configured to come into abutment with the rotation impelling surface of the slide block when the slide block retracts to restore the rotary cam to its original position.

Abstract: The invention relates to an upper part V-belt drive (1) with a tool fastening device (10, 200, 300, 400) having at least one lateral surface (19), which can be provided with a tool, and the V-belt drive (1) has a slider element (2, 420) and a driver element (3, 430). According to the invention, the tool fastening device (10, 200, 300, 400) is fastened in a manner that enables it to be removed downward with regard to the upper part V-belt drive (1) when in the working position thereof. In a tool fastening device (10, 200, 300, 400) for a V-belt drive (1) with a slider element (2, 420) and with a driver element (3, 430), the tool fastening device (10, 200, 300, 400) comprises at least one lateral surface (19), which can be provided with a tool, and the tool fastening device (10, 200, 300, 400) has at least one connecting device (11, 14, 22, 213, 214, 215, 219, 313, 314, 316, 317, 318, 319, 408, 409, 410, 411, 414) for positively and or non-positively connecting with the slider and driver element.

Abstract: A bending die having a first bending surface and a second bending surface that is rotatable with respect to the first bending surface. The second bending surface rotates with respect to the first bending surface during a bending operation. The first bending surface is engagable with a workpiece during the bending operation to bend a first portion of the workpiece. The second bending surface is engagable with the workpiece during the bending operation to bend a second portion of the workpiece. The first portion of the workpiece and the second portion of the workpiece are disposed on a first side of a bend line formed by the bending operation.

Abstract: A rotating filler cam system including a lower die receiving at least one filler cam. The filler cam includes saddles that sit in saddle pockets of the lower die such that the filler cam is rotatably connected to the lower die. At least one wedge assembly is driven to contact the filler cam and rotate the filler cam from a first position to a second position.

Abstract: In a wedge drive (1) with a first part (20) which can be provided with a machining tool and a second part (30), wherein the two parts (20, 30) are arranged movably relative to each other, and there is provided at least one positive-action return device which engages or can engage both parts (20, 30), and a third part (10) which is connected to the first part (20), the at least one positive-action return device is return spring-free and has at least one device for causing and/or supporting the return of the one part (20) and/or for increasing the retraction force which can be applied in the return of the one part (20) in the upward stroke movement of the third part (10).

Abstract: A machine tool for processing workpieces comprises a stroke drive device with a pressing tool, with a motorized drive including two motorized drive units which are controlled independently and wedge gear elements between the motorized drive and the pressing tool. The wedge gear elements comprise two drive-side wedge gear elements, each one being associated with a motorized drive unit, and two output-side wedge gear elements attached to the pressing tool, with each output-side wedge gear element opposite to an associated respective drive-side wedge gear element and forming a gear element pair. The wedge gear elements of each gear element pair are opposite each other inclined at a wedge angle with respect to a positioning axis and inclined in opposing directions with respect to the positioning axis. The motorized drive is configured to move the pressing tool along a stroke axis and position the stroke drive device along the positioning axis.

Abstract: A shaping tool as depicted in exemplary FIG. 3 comprising a rotatable base member having at least one profiled bending roller (13) which is mounted on a circular track and is rotatable about a rotation axis. The bending roller (13) arranged on a radially movable slide (11) is movable from a position defining a maximum working aperture for the tool, by means of a spring-loaded lever (9) which has an axial configuration, into a position defining a minimum working aperture for the tool.

Abstract: A cam apparatus of a suspended cam type includes a cam driver 2 having a sliding surface 9; a cam slide 3 which is moved with its sliding surface 28 in contact with the sliding surface 9 of the cam driver 2; a cam-slide supporting means 4 for supporting the cam slide 3 movably in an A direction; and a returning mechanism 5 for returning the cam slide 3 to its rear initial position in the A direction of that cam slide 3.

Abstract: The invention relates to a wedge drive for converting a vertical pressing force, including at least one slider bed, one slider wedge, and one driver; to provide a movable coupling of the slider wedge in the slider bed, at least one bearing lug is provided; the bearing lug reaches through at least one bearing opening in a side wall of the slider bed from the outside and engages in a recess in the slider wedge; the slider wedge is supported on the bearing lug and the bearing lug is supported on a wall delimiting the bearing opening.

Abstract: A stamping tool for forming a stamped metal panel used as part of a pillar of a motor vehicle is provided. The stamped metal panel is arcuate and has a u-shaped cross-section, the arcuate panel including a transitional portion so as to avoid a die lock condition. The tool includes an upper die, and a lower die, and transitional portion surfaces. The transitional portion surfaces tapers as the transitional portion surface extends from the ends of respective upper and lower dies to a first point. The transitional portion is substantially tangential with at least the first wall surfaces of the dies to facilitate removal of the panel from between upper and lower dies of a stamping tool.

Abstract: A shaping tool as depicted in exemplary FIG. 3 comprising a rotatable base member having at least one profiled bending roller (13) which is mounted on a circular track and is rotatable about a rotation axis. The bending roller (13) arranged on a radially movable slide (11) is movable from a position defining a maximum working aperture for the tool, by means of a spring-loaded lever (9) which has an axial configuration, into a position defining a minimum working aperture for the tool.

Abstract: A folding device is provided for the processing of workpieces and includes, but is not limited to a holding device for the holding of a workpiece in a processing position in a holding plane and a folding slide for the folding over of an edge of the workpiece into a folding position. The folding slide at least includes, but is not limited to a first folding surface and a second folding surface. The first folding surface with the second folding surface forms an angle ?, the first folding surface with the holding plane forms an angle ?1 and the second folding surface with the holding plane forms an angle ?2 and the first folding surface and the second folding surface are intended for pressing onto the workpiece during the folding over of an edge.

Abstract: Provided is a forming die, including a movable supporting member, a movable die, a fixed supporting member and a fixed die. The movable supporting member disposes an oblique sliding groove. The movable die disposes an oblique guiding surface engaged with the oblique sliding groove. The movable die disposes a forming portion, which includes a forming base and a protruding portion extending downward from the forming base. The movable die can tilted move along the oblique sliding groove. The fixed die disposes a flange having a high point. The forming die of the present invention employs the movable die tilted moving along the oblique sliding groove to make the protruding portion extend into the back space of the high point, so that no gap exists between a bending portion of a terminal and the flange for obtaining the bending portion having a large bending degree and having a stable size.

Abstract: In order to provide a cam slider shock absorbing member for a cam device which realizes a sufficient stroke, easy replacement, a compact profile, and an easy-to-machine property without necessity of adhesive agent, the shock absorbing member includes a mounting portion having an external dimension at least larger than an internal dimension of a mounting hole on the side of a lower end thereof and a deflecting portion having a predetermined distance for a deflecting margin with respect to an inner wall surface of the mounting hole on the upper side of the mounting portion, and an upper end of the deflecting portion projects upward from an opening end of the mounting hole and being formed to have a height which secures a length corresponding to the stroke to be compressed.

Abstract: A second press 10 irons a plate-like steel plate W. This second press 10 comprises a base block 22 for supporting the lower surface of the steel plate W, a rod 11 disposed on the upper surface of the steel plate W, an upper die 30 including a guide rail 24, a first cam 25 and a second cam 34 and a lifting mechanism 40 for moving the rod 11 along the surface of the steel plate W. The base block 22 regulates the movement of the rod 11 in a thickness direction of the steel plate W by contacting the upper surface of the rod 11 over the movement range of the ironing member in the surface direction of the steel plate W.

Abstract: A corner cam assembly for use with a forming die and including a generally cylindrical inner cam component, an outer cam component, a base, and a retainer unit. Contoured contact surfaces on the inner and outer cam components enable the components to slide past one another during transitions between retracted and extended positions. Some features of the corner cam assembly include helical contact surfaces, guide features that control movement of the cam components, removable work steels, standardized cam components, and being able to form negative and other tight angles, multiple corners and edges, to name but a few.

Abstract: The present invention relates to a press die set for forming a flange that bends an edge of a part, such as a door panel and a hood panel, at a right angle in a press-forming direction and bends an edge adjacent to the edge at a negative angle, and a flange forming method. The press die set for forming a flange according to the present invention can accomplish the flange formation described above in one step, has a simple structure, and is easy to maintain.

Abstract: A filler cam assembly for use with a forming die generally including a center cam component, end cam components and a base assembly and being designed to transition between unloading and forming positions. The various cam components preferably have axial ends with helical surfaces such that rotation of one of the cam components causes a corresponding axial movement of an adjacent cam component. Some features of the filler cam assembly include removable work steels, standardized cam components, drive and lock out mechanisms, and being able to form negative angles, multiple corners and edges, and an entire formable periphery of a metal work piece in a single forming operation, to name but a few.

Abstract: A slide driver assembly for use in a multi-station or a single-station progressive tooling die includes die sections that are operative to move between an open position and a closed position to perform a first operation on a work piece located between the die sections. A slide driver performs a second operation, such as a trimming operation, on the work piece as the die sections move between the open position and the closed position.

Abstract: To enable formation at a negative angle with deep bending and forming a high-quality panel, a negative-angle press-working die includes an elevatable pad fixed to an upper die, a slide cam supported to be slidable laterally on the upper die or a lower die and having a bending blade, a rotary cam rotatable about a rotational center having a bending part which forms a negative-angle portion on a workpiece and a cam surface abutting on the slide cam, an elevatable slide body disposed under the pad so as to be rotatable together with the rotary cam and having a hold part provided at an upper portion on a bending part side of the rotary cam and constituting a part of a male die for workpiece forming, a drive unit that rotates the rotary cam to a workpiece working position, and a slide drive unit that slides the slide body in an up and down direction.

Abstract: A hemming apparatus (1) includes a holder unit (2), a lower die (3) on which the holder unit (2) is installed, and an upper die (4) which is installed on the lower die (3) vertically movably. The holder unit (2) includes a base (5) secured to the lower die (3) by means of bolts or the like; a working tool holder (7) which is rotatably supported on the base (5) so that a hemming punch (6) can be disposed at a nonworking position and a working position; and a resilient means (8) for resiliently urging the working tool holder (7) so as to dispose the hemming punch (6) at the nonworking position.

Abstract: The present invention provides a punch press with forming dies which reduces the limitation on the number and positions of forming dies attached to the die supporting member, the punch press enabling a device that elevates and lowers forming dies to operate appropriately without being affected by slag. The punch press with forming dies includes a die supporting member 2 that supports a plurality of forming dies 5 so that the forming dies 5 can be elevated and lowered, a die elevating and lowering driving device 16 that elevates and lowers the forming dies 5, and a die supporting member moving device that moves the die supporting member 2 so as to locate one of the forming dies 5 at a punch position P.

Abstract: A rotating filler cam system including a lower die having a plurality of filler cams rotatably connected to thereto. A plurality of wedge assemblies are connected to a drive shaft, wherein upon actuation of the drive shaft, the wedge assemblies are driven to contact the filler cams and rotate the filler cams from a non-flanging to a flanging position.

Abstract: The invention relates to an upper part V-belt drive (1) with a tool fastening device (10, 200, 300, 400) having at least one lateral surface (19), which can be provided with a tool, and the V-belt drive (1) has a slider element (2, 420) and a driver element (3, 430). According to the invention, the tool fastening device (10, 200, 300, 400) is fastened in a manner that enables it to be removed downward with regard to the upper part V-belt drive (1) when in the working position thereof. In a tool fastening device (10, 200, 300, 400) for a V-belt drive (1) with a slider element (2, 420) and with a driver element (3, 430), the tool fastening device (10, 200, 300, 400) comprises at least one lateral surface (19), which can be provided with a tool, and the tool fastening device (10, 200, 300, 400) has at least one connecting device (11, 14, 22, 213, 214, 215, 219, 313, 314, 316, 317, 318, 319, 408, 409, 410, 411, 414) for positively and or non-positively connecting with the slider and driver element.

Abstract: An improved rotary rolling or bead rolling machine capable of placing beads, crimps, flanges, turns, burrs, elbows, slits, offsets, collars, flats, or other deformations in sheet material. The machine provides a foot operated roller force and motor control and allows an operator to utilize two hands to manipulate the sheet material placed between the rollers. The machine utilizes an air spring or air-stroke actuator to provide substantial roller force in a small volume. The machine further provides roller adjustability whereby a roller may be displaced relative to another roller.

Abstract: A filler cam assembly for use with a forming die generally including a center cam component, end cam components and a base assembly and being designed to transition between unloading and forming positions. The various cam components preferably have axial ends with helical surfaces such that rotation of one of the cam components causes a corresponding axial movement of an adjacent cam component. Some features of the filler cam assembly include removable work steels, standardized cam components, drive and lock out mechanisms, and being able to form negative angles, multiple corners and edges, and an entire formable periphery of a metal work piece in a single forming operation, to name but a few.

Abstract: A device for machining protrusions, teeth, burrs, crimps and the like in a brake lining carrier plate has a tool unit (51; 61, 61?) with several tool elements (53; 62, 62?) with cutting teeth. During the crimping procedure, the unit is moved towards a first axis (54) and towards a second axis (55) running perpendicular thereto, whereby the first axis (54) coincides essentially with the surface normal of the brake lining carrier plate. Forced-control means arranged between the compressing part (52) and the tool unit (51; 61, 61?) move the tool unit (51; 61, 61?) towards the first axis (54). Forced-guidance means move the tool unit (51; 61, 61?) towards the second axis (55). The tool elements (53; 62, 62?) of the at least one tool unit (51; 61, 61?) are arranged in a fixed position relative to each other.

Abstract: An upper die 7 that is fixed to a ram 4d of a press machine 1 includes a forming punch 9 for conducting drawing, forming and listing, upper die-side cutting edges 13a for conducting trimming, and flat-face piercing punches 11 for conducting flat-face piercing, to respectively a work W in cooperation with a lower die 8. The lower die 8 is provided with a forming die 12 corresponding to the upper die 7, and a large piercing die 14, lower die-side cutting edges 8e and a flat-face piercing die 8a which are disposed at the forming die 12. A side-face working apparatus 17, including a rotating base 18 and a reciprocating base 19, is disposed at the side of the lower die 8 to conduct side-face press working to a side-face portion 3g of the work W jointly with the lower die 8.

Abstract: The inventive device makes it possible to form protruding parts (18) teeth, spigots, corrugations and the similar on a carrier plate (8) of a brake-lining by introducing a tool into said carrier plate (8) of a brake-lining with the aid of a pressure plate (1) and by removing the tool from the plate. The tool consists of a number of elements (68 to 71) which are displaceable in an opposite direction towards each other and provided with cutting teeth, for example with a saw blade. During formation of protruding parts, the elements (68 to 71) of the tool are displaceable on a plane along two axes, i.e., along the first axis (20) and along the second axis (21) which is perpendicular to the first axis which coincides or is aligned essentially in a perpendicular direction with respect to the surface of the carrier plate (8) of a brake-lining.

Abstract: Universal aerial and die-mount cams, each having an adapter assembly, a driver, and a slide sandwiched between the adapter assembly and the driver. The adapter assembly has a universal adapter having an arcuate portion that is angularly adjustable within arcuate recesses in opposing side plates of the universal adapter so that bearing surfaces of the universal adapter slidably oppose a first group of bearing surfaces of the slide and a second group of bearing surfaces of the slide slidably oppose bearing surfaces of the driver, the latter bearing surfaces being parallel to or inclined to the horizontal. Three ranges of longitudinal driver inclination angles can be accommodated by using the same slide and universal adapter and one of two pairs of side plates.

Abstract: While a rotational die and a predetermined position of a lower mold in which the rotational die is provided can be set in a zero contact manner, operation of setting the rotational die in the predetermined position of the lower mold can be easily performed, and occurrence of problems such as insufficient rotation of the rotational die and breakage of support shafts is reduced. To realize this, in a structure of bearing for rotatably supporting, in a bearing hole, a pivot support shaft of a rotational die arranged in a press molding apparatus, an inner diameter of at least an upper side of the bearing hole with respect to a horizontal line passing through a center of the bearing hole is formed slightly larger than a diameter of the support shaft, and a space is provided between the pivot support shaft and the inner surface of the upper side of the bearing hole.

Abstract: The equipment for producing a corrugate fin is capable of forming corrugated sections by one closing action. The equipment comprises: a plurality of punches respectively having projections, each of which is upwardly projected from an upper face of the punch and has a side slope face; a pair of cam blocks being capable of relatively moving close and away each other, the cam blocks respectively having pressing sections, which are capable of moving along the side slope faces and contacting the projections; and a cam plate relatively moving the cam blocks close or away each other. Positions of the side slope faces of the projections are different so as to make the pressing sections contact the projections in order, and the cam blocks move the punches toward the die in order by one closing action of the blocks.

Abstract: Adjustment of the tools (24) on the tool holder (10) in an Aerial Cam of a metal stamping press may be readily effected by opening the press to remove the upper die (14) from the stamping area and then removing the tool holder (10) on the driver (18) for controlled reciprocation simulating normal operation of the press. The tools (24) may then be adjusted in relation to the workpiece without the interference of the press dies (14 and 20).

Abstract: While a rotational die and a predetermined position of a lower mold in which the rotational die is provided can be set in a zero contact manner, operation of setting the rotational die in the predetermined position of the lower mold can be easily performed, and occurrence of troubles such as insufficient rotation of the rotational die and breakage of support shafts is reduced. To realize this, in a structure of bearing for rotatably pivoting a support shaft of a rotational die arranged in press molding apparatus by a bearing hole, inner diameter in at least an upper side of the bearing hole with respect to a horizontal line passing through a center of the bearing hole is formed slightly large compared with diameter of the support shaft, and a space is provided between the inner diameter in the upper side of the bearing hole and the support shaft.

Abstract: Operations for uniting together a fixed support base 4 for fixedly supporting a workpiece W and a support die and for composing and decomposing a negative-angle press-forming die to take out a product processed by a negative-angle press-forming process are provided by an L-shaped die and a rotational support mechanism 21, serving as a pivot on which the L-shaped die is turned, inclined at an inclination determined according to the height range of a curved surface to be formed.

Abstract: A press mounted cam has a slide guided on an adapter by structural features including as one or more T blocks fixed to the slide and received in a respective channel formed in the adapter. In an aerial cam embodiment, a vertical clearance space is provided between the T block and adapter channel such that positive driving engagement between cam surfaces on the slide and the adapter is momentarily delayed after the initial engagement of the slide and driver surfaces to let the momentum of the slide be absorbed prior to the beginning of positive driving by the press motion, reducing shock and noise. The slide is laterally located with respect to the driver by an upwardly projecting locator-guide key on the driver received in a central channel in the slide. A positive return is provided by engagement of a driver key having T features received in a T-shaped slide channel and captured therein when the slide is driven laterally.

Abstract: A wedge driving tool for cutting and/or non-cutting shaping of a sheet metal workpiece in a press includes a mould- and/or tool-bearing working slider, which may be displaced between a slider bed and a driver at a predetermined angle. For obtaining a working slider which may be continuously angularly adjusted, segmental disks are in each case arranged on both sides of the working slider in a continuously movable manner with respect to an angle of rotation, in each case, on the slider bed and the driver or on the working slider and the driver. The segmental disks, in each case, being arranged in pairs on an axis of rotation, are non-rotatably mutually connected along their chord-type boundaries such that corresponding straight-line guides, particularly for the working slider, are arranged in these connections.

Abstract: A tool mounting and method for adjustably mounting a tool holder on a cam slide of a press mounted cam also including an adapter body and driver. The tool mounting includes a tooling plate adjustably secured to the cam slide by a series of dowel pins closely fit in dowel pin openings in the cam slide and loosely fit in dowel pin holes in the tooling plate to allow vertical and horizontal adjustment. A channel extends to each oversized dowel pin opening to enable injection of a setting material to lock the tooling plate in its adjusted position after being aligned with a die opening using a pilot installed in a tool holder mounted on one side of the tooling plate. An alignment plate is installed over the other side to cover the channel to each oversized dowel pin hole and allow removal and replacement of the tooling plate without disturbing the adjusted position on the tooling plates.

Abstract: The invention relates to a cam slider with an upper guiding part containing a cam element (20) and a cam guiding element (10), and with a lower guiding part containing a driver element (40), the upper guiding part (10, 20) being holdable and/or held together by at least one guiding clamp (30).

Abstract: A press mounted cam has an adapter, slide and a driver with range of sizes and working angles provided at low cost by driver and/or adapter constructions having base plates and a series of side by side upright plates of a number corresponding to a given length with an angled top corresponding to a given working angle.

Abstract: To facilitate aligning and setting of a punch in a die of a press machine, a module cam assembly comprises a cam unit and an L-shaped module base. The cam unit comprises a cam driver, a cam slider equipped with a positive return to be driven by the cam driver, and a cam base holding the cam slider. The cam slider has a punch retainer on its vertical side. The L-shaped module base bears the cam unit, and is adapted to be fastened to the lower die holder. The L-shaped module base has a button die on its vertical leg in confronting relation with the punch retainer of the cam slider. This arrangement facilitates the centering and fastening of any tool to the press machine.

Abstract: A roller cam mechanism and driver assembly which features a positive retraction cam elements comprised of auxiliary rollers and side plate slots which cooperate upon failure of a retraction spring compressed by advance of a tooling slide to cause positive retraction of a tooling slide.

Abstract: Narrow aerial and die-mount cams, each having a cam adapter, a driver and a slide sandwiched between the cam adapter and driver. The narrow aerial cam slide has an elongate primary portion that has a T-shaped cross-section and has a primary bearing surface, and the cam adapter has a rectangular recess. An elongate keeper plate having a longitudinal slot is secured to each side of the cam adapter adjacent the rectangular recess to slidably retain the primary portion of the slide within the longitudinal slots and the rectangular recess. The primary bearing surface and a pair of intermediate bearing surfaces formed in the slide below the primary portion slidably support the keeper plates and thus the cam adapter. The driver slidably supports the slide. The narrow die-mount cam is basically an inverted version of the aerial cam.

Abstract: A cam apparatus includes: a cam driver; a cam slide adapted to move in contact with the cam driver and having a through hole; a cam-slide supporting device having a cam-slide supporting base which movably supports the cam slide, has a front wall portion disposed at a forward position in a moving direction of the cam slide, and has an opening in a backward position opposing the front wall portion in the moving direction of the cam slide; and a returning mechanism for returning the cam slide to an initial position thereof.

Abstract: A roller cam with pairs of sliding surfaces and wear plates located in an upper plane and with pairs of laterally slanted sliding surfaces and pairs of laterally slanted guiding wear plates located in a lower plane. The guiding wear plates are longitudinally contained between end plates to avoid using screws, which might loosen under stress, to secure the wear plates. Adjusting setscrews are used to laterally adjust the guiding wear plates, and positive return members are used to provide a tool retracting force in addition to that provided by a retracting spring.

Abstract: A mechanism for hemming the beltline of a vehicle door panel is combined with a mechanism for hemming the outside perimeter of the door panel, and the two mechanisms are driven by a common drive. The beltline hemming steel acts on the beltline hem before the outside perimeter hemming steel acts on the outside perimeter hem, and lost motion in the actuation of the beltline hemming steel allows the beltline hemming steel to complete the beltline hem before the outside perimeter hem is completed. The lost motion mechanism provides reduced interaction or sensitivity between the steels, and the delay in the completion of the outside perimeter hem allows the entire hemming apparatus to be more easily tuned during set-up. The lost motion allows the entire mechanism to be less sensitive to variations in workpiece thickness.

Abstract: To facilitate aligning and setting of a punch in a die of a press machine, a module cam assembly comprises a cam unit and a fallen L-shaped module base. The cam unit comprises a cam driver, a cam slider equipped with a positive return to be driven by the cam driver, and a cam base holding the cam slider. The cam slider has a punch retainer on its vertical side. The fallen L-shaped module base bears the cam unit, and is adapted to be laid and fastened to the lower die holder. The fallen L-shaped module base has a button die on its vertical leg in confronting relation with the punch retainer of the cam slider. This arrangement facilitates the centering and fastening of any tool to the press machine.

Abstract: A cam-type press system is provided which includes a cam base slidably mounted on a lower die and securing a material panel with a formation pad: cam base steel is mounted on the cam base corresponding to a height of the formation cam. The cam base steel is performs a formation process on the material panel together with a formation cam. A cam slider is mounted on the cam base through a linkage assembly such that the cam slider and the cam base are able to slide. The cam slider is linked with the operation of an operational driver. First and second return assemblies are mounted respectively within the cam base and the cam slider and contacting the lower die. The first and second return assemblies exert a biasing force to return the cam base and the cam slider, respectively, to an initial position when displaced from the initial position.