Abstract: The present invention relates to a device for guiding a movable element, in particular a driving bar of a mandrel or a mandrel, in a rolling mill with mandrel. The device according to the invention comprises a support structure for the advancement of the movable element along an advancement direction. The device comprises a first slide and a second slide which are carried by said support structure and are slidable along a transverse direction which is substantially orthogonal to said advancement direction, in which each slide carries two abutment surfaces for guiding the movable element and in which each slide is movable along said transverse direction between at least a first operating position, upon reaching which said abutment surfaces are susceptible to coming into contact with a movable element of a first predefined diameter, and at least a second operating position, upon reaching which said abutment surfaces are susceptible to coming into contact with a movable element of a second predefined diameter.

Abstract: A paintless dent removal tool, method and system for automatically removing a dent from a vehicle. The paintless dent removal tool includes a stabilizer assembly, a sleeve, a threaded chamber and a threaded rod positioned within the threaded chamber of the sleeve. Wherein, upon a rotational force being applied to the top end of the threaded rod, the threaded rod is configured to rotate within the threaded chamber raising the sleeve upwards towards the top of the stabilizer assembly, such that when a glue tab is connected to the tab connector the paintless dent removal tool automatically pulls the glue tab upward to substantially pull out the dent in the surface of the vehicle.

Abstract: A swaging system for attaching surgical needles to sutures and testing the attachment strength includes a frame, a bottom swaging die mounted on the frame, and a top swaging die mounted on the frame and being moveable up and down along a swaging axis that is aligned with the bottom swaging die. The bottom swaging die includes a hinge mechanism with a bottom plate mounted to the frame and a top plate overlying the bottom plate. The top and bottom plates are pivotally connected for enabling the top plate to pivot relative to the bottom plate. The bottom swaging die includes a swaging tool that extends toward the top swaging die along the swaging axis, and a load cell disposed between the top and bottom plates for monitoring load. The system includes a control system having one or more pull test programs stored therein for conducting pull tests on armed surgical needles to determine if the armed surgical needles are acceptable or unacceptable.

Abstract: The present invention relates to a tool for forming a joint in an interlocking side-lapped seam formed between first and second structural decking panels. The decking tool may include a frame, actuator, and arms with jaws, wherein the actuator forms a structural component of the decking tool and is located between the frame and the arms with the jaws. Moreover, the decking tool may further comprise one or more shields and jaw guards. The one or more shields may cover the arms on at least one side for protection. The one or more jaw guards may be utilized with or without the shields, and may or may not be integral with the shields. The one or more jaw guards have a number of benefits, such as protecting the jaws, positioning the jaws, being utilized as levers to help remove the jaws, and being utilized to prevent separation of the side-lap seam.

Abstract: A hand operated press 10 for foodstuff includes a base plate assembly 20 with a moving plate assembly 40 hingedly mounted at a predetermined points of their peripheries. An actuating arm 60 is hingedly mounted to the periphery of the base plate assembly 20 at a point opposite to where moving plate assembly 40 is hingedly mounted. A concave portion 70 in the actuating arm with a concavity facing the distal end of the moving plate comes in cammingly contact avoiding a perpendicular angle of attack. A protuberance 48 extending from the distal end 47 of the moving plate assembly 40 further ensures the cammingly contact while preventing actuating arm assembly 60 to totally collapse against the base plate assembly. A curved portion adjacent to the concave portion is prevents a user's fingers from coining in contact with the base plate assembly.

Abstract: An embodiment for disposing a sleeve on a fluid conduit includes positioning a sleeve through lead rollers, pressing sleeve edges to flatten the sleeve against its normal geometry, aligning the flattened sleeve with opposing guide channels defined in an passage through a sleeve guide, feeding the sleeve through the passage, and compressing the sleeve in the passage, letting the edges of the sleeve ride against the guide channels to open the sleeve. A length of the compressed sleeve exiting the guide may be cut using a heated device that fuses the sleeve material, leaving the sleeve clear to receive a fluid conduit. A collar may be disposed around an end of the cut sleeve and over the conduit, then compressed, with an end of the sleeve captured between the collar and end of the conduit. This compressing may define at least one raised portion in the collar.

Abstract: A setting device for connecting at least two components includes a first lever arm having a first working end, and a second lever arm having a second working end, that are pivotably connected to each other like pliers. A first linear drive is connected to the first and the second lever arm so that, by changing of the length of the linear drive, the first and second working ends can move relative to each other. A punch is arranged at a first working end that is connected to a supply module for joining elements, and/or a hold-down module.

Abstract: A hand operated crimping tool comprising a body arranged between a distal end and a proximal end of the crimping tool, a tool head arranged distally on the crimping tool, and handles arranged proximally on the crimping tool, where at least one handle is arranged pivotally to the body, and where the tool head is arranged axially slidable along the body. A distal crimping die is arranged at the tool head and a proximal crimping die is arranged at the body between which crimping dies a workpiece is to be crimped. The movement of the handles is connected to the movement of the tool head by a mechanism, whereby the tool head is movable between a distal non-crimping position and a proximal crimping position depending on the relative position of the tool handles.

Abstract: A system for repairing a pipe including a tool, a programmable logic controller and a patch. The tool includes a clamp base having an opening, a first jaw coupled to the clamp base with a first linkage, a second jaw coupled to the clamp base with a second linkage, an operating mechanism carried by the clamp base and operably coupled to the first and second jaws via one or more adjusting links and a junction box carried by the clamp base and operably connected to the controller, wherein the one or more adjusting links are coupled at a first end to either or both of the first and second jaws and at a second end to the operating mechanism, and wherein the first and second jaws are adapted to move, under force of the adjusting links. Methods of repairing pipes are disclosed.

Abstract: A repairing kit for automotive dents includes a body, a draw bar, a spring, a pull seat, a pull piece, a grab bar, a handle, two foot stands and two foot pieces. The repairing kit can be used to repair automotive dents and restore a smooth surface to an automobile using a DIY method, without damaging the baking finish surface after repairing the automotive dent.

Abstract: A mechanical press for fine blanking, forming and/or stamping of work pieces has a machine frame provided with a head piece and an O-shaped frame, the head piece receiving in a fixed arrangement a fine blanking or forming head having an upper tool part, a ram provided in the O-shaped frame having a table top for fixing a lower tool part, the ram being actuable along a vertical stroke axis, and a toggle mechanism with a first and second side that is positioned below the ram. The toggle mechanism includes a connecting rod having a substantially equilateral triangle shape with articulation points pivotally attached to arms that pivot about a fixed bearing on the press machine and the ram, respectively, as well as around the connecting rod. Another portion of the connecting rod is attached to synchronous motors through a gear and shaft arrangement at another fixed bearing on the machine press. A computer controller adjusts the motors to equal path-time characteristics.

Abstract: A tool for gripping, clamping or holding an object, wherein the tool has a handle portion, a linkage portion and a working portion, and wherein the working portion includes two workpiece contacting surfaces, at least one of the surfaces shaped to generally conform to at least a portion of the outer surface of a workpiece to be clamped, gripped or held. In some embodiments, at least one of the workpiece contacting surfaces is adapted to provide a treatment to a workpiece being clamped, gripped or held.

Abstract: A press with a cylinder for the movement of a pressure element is described. The cylinder is connected to a toggle lever, wherein the toggle lever is connected to a drive and wherein the drive moves the cylinder via the toggle lever.

Abstract: A hand tool comprising first and second jaw members and first and second handle members, the first handle and both jaw members being cooperatively connected by a force multiplying linkage system. A force applied to the first handle drives the linkage system to close the jaws to crimp or cut a work piece. In one embodiment of the invention, a link in the linkage system has a first end movable between first and second positions relative to its first end pivot pin wherein the first and second jaw members close a first distance when the link first end is in the first position and close a second distance when the link first end is in the second position. Other embodiments comprise other step-wise changes in distance between force-bearing pivot locations in the linkage system to close the jaws progressive distances with successive closures of the first and second handles.

Abstract: The invention relates to a device for adapting working rolls, in particular of four-high stands, to a rolling line with at least one pair of wedges (1, 1?) in a region between parallel, spaced from each other, rolling mill stands (2, 2?), which are displaceable along a horizontal slideway relative to the stands (2, 2?) by toggle lever adjusting means. To this end, the wedges (1, 1?) of the wedge pair are connected with each other at a fixed distance from each other, and for their displacement an arrangement of two toggle levers (4, 5) is provided of which one lever (4) is supported on one wedge (1) with at least one articulated joint (6) and another lever (5) is supported on an opposite stand (2?) also with at least one articulated joint, and both levers (4, 5) are connected with each other by a longitudinally adjustable toggle joint (7).

Abstract: The present invention provides a linear motor mounted press machine which uses a boosting mechanism to enable machining with a greater press tonnage using a press driving source with relatively low power and which, for machining with a smaller press tonnage, enables efficient high-speed machining. A linear motor mounted press machine includes a boosting mechanism 10 having an output portion that performs a rectilinear reciprocating operation, a first linear motor 11 coupled to an output portion of the boosting mechanism 10, a second linear motor 12 having an output shaft that drives a press tool 6 forward and backward, and a coupling switching mechanism 13. The coupling switching mechanism 13 releasably couples the output shaft of the second linear motor 12 to the output portion of the boosting mechanism 10. The boosting mechanism 10 is a toggle-type link mechanism or the like. A servo motor and a crank mechanism or the like may be used in place of the first linear motor 11.

Abstract: A press machine is configured with an adjustable slide stroke length. The press machine comprises a frame, a crankshaft borne rotatably on the frame, a slide disposed under the crankshaft, a first lever swingably supported on the frame, a second lever swingably connected to the first lever through a first pin, a displacing mechanism for displacing the first pin, and a linear approximation mechanism that exerts a horizontal force to the first pin so as to convert a rotation of each eccentric portion of the crankshaft into an elevating motion of the slide.

Abstract: A hand tool comprising first and second jaw members and first and second handle members, the first handle and both jaw members being cooperatively connected by a force multiplying linkage system. A force applied to the first handle drives the linkage system to close the jaws to crimp or cut a work piece. In one embodiment of the invention, a link in the linkage system has a first end movable between first and second positions relative to its first end pivot pin wherein the first and second jaw members close a first distance when the link first end is in the first position and close a second distance when the link first end is in the second position. Other embodiments comprise other step-wise changes in distance between force-bearing pivot locations in the linkage system to close the jaws progressive distances with successive closures of the first and second handles.

Abstract: A dimpler includes a frame supporting a fluid cylinder which drives a ram toward a platen to press a dimple into a pipe fitting or other object. A method of dimpling or redimpling pipes or fittings is also described.

Abstract: A punching tool for forming an attachment in a side-lapped seam of steel decking includes four cutting jaws each having a cutting edge. Two jaws are positioned against one side of the seam, and two jaws are positioned on the opposite side of the seam. An actuator selectively pivots the cutting edges of opposing jaws generally toward each other to a closed position, driving the cutting edges of a first pair of jaws partially past each other for cutting a first slot through the seam, and driving the cutting edges of a second pair of jaws partially past each other for cutting a second slot through the seam. Also disclosed are a method for forming such an attachment, as well as the attachment structure which results therefrom.

Abstract: A device for punching, stamping and/or shaping flat elements (29) includes a base body (1) with a table (18) and support (26) for the flat element (29), and a base plate (17), which supports a punch (24), and which is advanced with a drive (4,5) toward the support (26) and into a working station (II), bringing the punch (24) into contact with the support (26). A large number of successive, very short, highly precise, punching strokes make punched holes or stampings. Short stop periods and short clock times are used for fast moving flat elements (29). Transfer apparatus (9, 7; 35; 43; 46) coupled between the drive (4,5) and the base plate (17) move the base plate (17) without building up pressure from a position of rest (I) The punch (24) is not in contact with the support (26), up to immediately in front of working position (II). The base plate (17) is then moved into working position (II) while producing a high pressure between the base plate (17) and the flat element (29).

Abstract: A tool for gripping, clamping or holding an object, wherein the tool has a handle portion, a linkage portion and a working portion, and wherein the working portion includes two workpiece contacting surfaces, at least one of the surfaces shaped to generally conform to at least a portion of the outer surface of a workpiece to be clamped, gripped or held. In some embodiments, at least one of the workpiece contacting surfaces is adapted to provide a treatment to a workpiece being clamped, gripped or held.

Abstract: A pre-hemming apparatus for use with a hemming die includes a driving member adapted to be centrally disposed below the hemming die. A plurality of link arms are operatively, pivotally connected to the driving member. A lever arm is operatively connected to each link arm. A flanging member is operatively connected to each lever arm at an end thereof. A plurality of mounts for supporting the lever arms are adapted to be mounted to a side of the hemming die. Each lever arm is pivotally connected to one of the mounts intermediate ends of the lever arm. An actuator is operatively engagable with the driving member. Actuation of the driving member moves the flanging members towards the hemming die through the lever arms and the link arms for pre-hemming, and away from the hemming die cycling the apparatus.

Abstract: A clamp assembly for a hydroforming die includes a stationary lower bed to support a lower die half of the hydroforming die, a stationary upper bed spaced above the lower bed, at least one guide post extending between the lower bed and the upper bed, a movable slide disposed between the upper bed and the lower bed and movable along the at least one guide post to support an upper die half of the hydroforming die, a lifting cylinder operatively connected to the movable slide to move the movable slide and upper die half toward and away relative to the lower die half, at least one link mechanism connected to the upper bed and the movable slide to equalize a force on the hydroforming die, and at least one linkage cylinder operatively connected to the at least one link mechanism to activate the at least one link mechanism to prevent the movable slide and upper die half from moving away from the lower die half to keep the hydroforming die closed during a hydroforming process.

Abstract: A metal forming press has an oscillating beam driven at its center by a connecting rod connected to a throw on a crankshaft. The upper end of the beam is pivoted to a link which drives a ram. The lower end of the beam pivots about a rotating eccentric shaft having an eccentric lobe. As the beam oscillates, these eccentricities cause the lower pivot to move toward and away from the ram so that the arc of the upper pivot approximates a straight line.

Abstract: A toggle press is provided with two levers (14, 16) which are pivotably connected by means of a joint (18), the first of which (14) is connected at its free end to a pressing tool (22) and the second of which (16) is rotation-resistantly mounted at its free end on a shaft (28) which can be rotated by a drive unit. The rotation-resistant connection between the second lever (16) and shaft (28) is releasable when the toggle lever reaches the extended position. The second lever (16) is disposed on a section of shaft (28) contrived as an eccentric cam (44).

Abstract: A press has a slide which can be driven by way of one or more one knee link element by a driving device in order to carry out a stroke movement. The knee link element or elements is or are connected by at least one connection element with another knee link element which is also mounted on the slide.

Abstract: A unit for automatically crimping ribbons of flexible flat cable has a guide surface on which a ribbon of flat cable travels. A number of crimping stations are arranged vertically offset plumb with the plane of the guide surface and designed to crimp a connector onto an end of a branch of the flat cable. A number of tilting ramps have a first end even with the plane of the guide surface when they are in the tilted state and a second end even with a crimping station. The ramp tilts toward the guide surface on command so that a predetermined branch of the ribbon follows the ramp it encounters in its path as it travels along and so that it is directed to one travels along and so that it is directed to one of the crimping stations where it receives a connector.

Abstract: A lock comprising a roller stop having a forward end; at least a first roller receiving concavity mounted for movement across the forward end of the roller stop; a roller mounted for movement between forward and rearward positions, the roller, while at its forward position, extending into the at least first roller receiving concavity and overlying the forward end of the roller stop; a plunger having a forward end and a rearward end, the plunger being mounted for motion between forward and rearward positions, the plunger, while at its forward position, holding the roller at its forward position, the plunger, while at its rearward position, allowing the roller to move to its rearward position; and a toggle mounted for alternate flexion and hyperextension, the toggle, upon hyperextension, holding the plunger at its forward position, the toggle, upon flexion, holding the plunger at its rearward position.

Abstract: A toggle press is provided with two levers (14, 16) which are pivotably connected by means of a joint (18), the first of which (14) is connected at its free end to a pressing tool (22) and the second of which (16) is rotation-resistantly mounted at its free end on a shaft (28) which can be rotated by a drive unit. The rotation-resistant connection between the second lever (16) and shaft (28) is releasable when the toggle lever reaches the extended position. The second lever (16) is disposed on a section of shaft (28) contrived as an eccentric cam (44).

Abstract: A slide driving device for a press machine is driven by a first and second upper toggle link mechanisms pivotably mounted above a slide. The upper toggle links include first links connected at a connecting link along a common tangent line. The connecting link is driven by a connecting rod receiving eccentric movement from a crank shaft. The upper toggle links also include second links, each connected to lower toggle links. The lower toggle links operate a plunger and drive a slide. Alternative embodiments allow adaptive positions of the upper toggle links and crank shaft along with multiple lengths for the first and second links. A dynamic balancer, is not necessary for operation, but may be added to minimize vibration. Together, these embodiments provide a slide driving device with minimized vibration and simplified construction.

Abstract: A double-acting or single-acting mechanical forging press has an eccentric drive acting on the entire ram or an outer ram member and a toggle mechanism which acts on an inner ram, e.g. via removable pins so that, when the pins are removed, the toggle mechanism is decoupled from the inner ram member.

Abstract: A device for upsetting a workpiece has a frame, a head for movement in a first direction toward the frame, and first and second tool holders between the frame and the head for holding dies for the upsetting. A parallelogram linkage mechanism supports the first tool holder on one of the frame and head for movement by the movement of the head in the first direction and in a second direction perpendicular to the first direction and toward the second tool holder for the upsetting. The parallelogram linkage mechanism has first and second pins respectively on the first tool holder and the one of the frame and head, and a link rotatably on the pins, one of the pins being eccentric in the second direction.

Abstract: A link type transfer press is driven by continuously dwelling the slide in the vicinity of the top dead center thereof with the use of a link mechanism. With this arrangement, a motion index angle of a feeder can be taken by a large degree even though the time required for one cycle of the slide is shortened, and accordingly, the transfer time of the feeder can be set to be substantially longer so that the feed can be fed without interference with the slide. Thus, the entire pressing time can be reduced, thereby enhancing the productivity.

Abstract: A double-action mechanical press is capable of easily keeping the dynamic balance, simpler in structure and provides an improved processing accuracy by maintaining the parallelism in upper and lower rams. The double-action mechanical press has a crank mechanism within a double-action crown. The crank mechanism comprises a crankshaft having two of first eccentric sections and two of second eccentric sections. A bed includes two oppositely rotatable toggle linkage mechanisms which rotate oppositely from one another. The two first eccentric sections are connected to the upper ram to move it in the upward and downward directions. The two of second eccentric sections are connected to the lower ram through a plurality of upright rods with the two toggle linkage mechanisms to move the lower ram in the upward and downward directions.

Abstract: A press has a slide which can be driven by way of one or more one knee link element by a driving device in order to carry out a stroke movement. The knee link element or elements is or are connected by at least one connection element with another knee link element which is also mounted on the slide.

Abstract: A slide-type pressing machine has a stroke length adjustment mechanism in which: changing of the stroke length does not effect the bottom dead center position of the press, adjustment is simplified, and the press is suitable for high speed pressing operations. The slide-type pressing machine has an eccentric section of a crank shaft which causes a slider to move up and down. An arm extends past a fixed pivot of an upper toggle link. One end of the arm is connected to the slider by a connecting link. A drive link and a drive connecting link are connected by a connecting pivot. A worm wheel is disposed on a frame, and is concentric with the connecting pivot when the slide is at bottom dead center. The worm wheel is arranged so that its rotation angle can be adjusted. A second arm is disposed in a radial direction from the axis of the worm wheel. A second pin is located at an end of the second arm. The second pin is connected to the connecting pivot via a third link.

Abstract: A power assisted combination shear used for forming structural louvers in the crimped seam of structural steel decking comprises a frame supporting a pair of jaws which are opened and closed by means of an operator-controlled pneumatic cylinder. One jaw terminates in a blade, the other jaw has a corresponding die member. The blade and die have undercut reliefs in the root portions, which permit the louver to be formed without breaking through to the edge of the seam. The louver comprises a sheared portion in the form of a bowed tab bridging a corresponding window formed in the seam by the shearing of the tab. The interference between the louver and window provides a substantial increase in the lateral resistance (shear strength) of the crimped seam, thereby obviating the need to additionally weld or screw the seam to provide the necessary shear strength for even the highest stress applications.

Abstract: A press machine comprises a frame, a first crankshaft rotatively arranged on the frame, a second crankshaft arranged on the frame so as to rotate angularly, a pair of levers connected with each other such that they can make a bending and stretching motion, one lever being connected with the frame such that it can make a pivotal motion but can not be relatively displaced, the other lever being pivotally connected with the second crankshaft, and a link which connects the levers with the first crankshaft and bends and stretches both of the levers as the first crankshaft is rotated, thereby enabling to reduce the number of parts constituting a transmission mechanism for transmitting the rotary motion of the first crankshaft to a slide.

Abstract: A press machine includes a frame, a first crankshaft rotated by a driving source, a second crankshaft connected with a slide, and a connection mechanism provided with a pair of levers connected with each other so as to carry out their bending-stretching motion as the first crankshaft is rotated. One lever has a first pivot and is connected, through the first pivot, with a position adjusting device for adjusting the position of the first pivot in the vertical or horizontal direction. The other lever has a second pivot and is connected, through the second pivot, with the eccentric shaft portion of the second crankshaft. The slide is connected with other eccentric shaft portion of the second crankshaft.

Abstract: A two-point double toggle mechanism, in which a motor is used to drive a flywheel and cause a crankshaft to rotate, is arranged such that the crankshaft is pivot-jointed with a connecting rod to drive two sets of double toggle mechanisms disposed symmetrically on left and right sides of the crankshaft. Each toggle mechanism includes an L-arm. One end of the L-arm is pivot-jointed to the connecting rod via a guide pin, and one of two holes formed in the L-arm accommodates an eccentric shaft. The other end of the L-arm connects a toggle strip via a post pin, and the other end of the toggle strip is pivot-jointed with a guidepost via another post pin, which connects a sliding block located thereunder. When the crankshaft rotates to drive the connecting rod, the guide pin will move up and down linearly to unify angular motion of the double toggle mechanisms and keep the sliding block constantly horizontal while it is moved vertically up and down.

Abstract: A hand held crimping tool which may be pneumatically or hydraulically operated and which utilizes first and second jaw members and first and second linking arms joined together such that they may move in a scissors-like movement, the pneumatic or hydraulic means operating on an actuating member which is connected to the first and second linking arms. The tool is conveniently used for crimping corrugated panels such as are used in wall and roof structures.

Abstract: In a toggle type punch driving system, the upper and lower ends of a bendable lever which can bend at an intermediate part thereof are pivotably connected to a fulcrum member and a ram respectively, and an advancing/retreating member for bending the lever is connected to the bendable part of the bending lever. The fulcrum member is formed as a vertically pivotable lever and it is borne by an upper/lower position switchover mechanism composed of a second bendable lever supported between a free end of the fulcrum member and frame, and an air cylinder. A retraction stroke of the ram necessary for tool change is assigned to the bending motion of the second bendable lever to diminish the punching stroke of the ram based on the bending motion of the bendable lever.

Abstract: A driving device for a pressing machine, particularly effective on a turret punch press, whereby both high speed processing at times of low load and high load processing at low speeds can be carried out even with a low output motor. A driving device for a press machine that transmits the rotation of a motor 12 to a press system 11 via a rotation transmission system 29 having a speed reduction gear 30, wherein a speed change gear 31 intervenes on the rotation transmission system 29. The speed change gear 31 is arranged on the input side of the speed reduction gear 30. The press system 11 is a system for exchanging a rotation movement to a linear movement, reciprocally driving the punch tool 4 and comprises the toggle system 8 and the crank system 13 or the like. With regard to control, a method 36 for exchanging the rotation transmission ratio of the speed change system 31 corresponding to the type of process is arranged.

Abstract: A sheet metal drawing equipment capable of providing a both thereof with strength sufficient to minimize deformation thereof during operation, to thereby increase durability thereof and stabilizing a gravity thereof to facilitate operation. The equipment includes a pair of legs each provided with surface contact sections adapted to be abuttedly contacted with a surface of a sheet metal, rails for slidably supporting the legs thereon, a slide frame member slidably supported on the rails, a pair of operation arms each pivotally supported at one end thereof on the slide frame members, a central shaft arranged so as to extend in a direction perpendicular to a longitudinal direction of the rails, inserted via the slide frame member and moved by operation of the operation arms, and connection arms each arranged in correspondence to each of the operation arms and pivotally connected at one end thereof to corresponding one of the operation arms and at the other end thereof to the central shaft.

Abstract: The top and bottom ends of a pivoting lever, which is pivotable in the middle, are rotatably connected with a supporting component and a ram, respectively. A shuttle component is linked with the pivot point of the pivoting lever. The shuttle component drives the pivoting lever forcing it to pivot, and when the shuttle component reaches the midpoint of the stroke the pivoting is fully extended. The shuttle component is shuttled by way of a crank, utilizing a servomotor as the drive source. The ram drives the punching tool and is held by the frame in the way that it can readily make the up and down motion.

Abstract: A power assisted crimping tool is disclosed particularly suited to crimping and dimpling of structural steel decking and roofing panels together. The invention comprises a frame supporting a pair of jaws which are opened and closed by means of a toggle linkage that is driven by an operator-controlled pneumatic cylinder. The input pivot of the toggle linkage is constrained to move linearly by means of a cross head formed in the frame which, in turn, causes the jaws to move in unison rather than one jaw moving against the other. According to one embodiment, the jaws are provided with a plurality of punch and die sets disposed in opposite orientations, such that as the decking or roofing panel joint is crimped by the jaws, the punch and die sets raise a plurality of dimples having alternating orientations.

Abstract: An apparatus for crimping terminals on an electrical conductor including a novel mechanism for adjusting the crimp or shut height. An anvil is secured to a supporting structure and a ram is mounted for reciprocating movement on the supporting structure in a direction toward and away from the anvil. The anvil and the ram carry cooperating die members which act to crimp the terminal on a conductor which is positioned between the anvil and the ram. The ram is moved in reciprocating movement by a toggle mechanism which interconnects the ram and the supporting structure, and the toggle mechanism is movable between an under-center open position, an on-center crimping position and an over-center open position. The location of the pivotal connection of the toggle mechanism to the supporting structure can be adjusted to selectively vary the spacing between the die members when the toggle mechanism is in the on-center position to thereby adjust the crimp height.

Abstract: The invention relates to a clinching press comprising a press tool (52) and a prebending unit (1) to produce a reciprocating movement in a tool holder (14) of a prebending tool (12), said tool holder being articulated to a foundation (2). The prebending unit (1) has a pressure rod (50) coupled to the press tool (52) and a knee-joint mechanism (28, 30), joined, on the one hand, to a pivot point (36) on the tool holder (14) and, on the other hand, to a fixed pivot point (34) on the foundation (2). The pressure roller (46) is freely rotatably mounted at the connecting point (32) of the links (28, 30). The knee-joint mechanism (28, 30) has a gas pressure spring (38, 42) for returning the mechanism to the starting position shown.

Abstract: An arrangement for a bending unit for bending in a projecting edge flange (4) against a surface of a workpiece (3). The bending unit comprises a stand (1), supporting a drive unit, and a supporting surface for the workpiece, as well as a link system (7, 8), which in turn supports a tool holder (6) for a bending tool (5), which is displaceable along a predetermined path of movement between a starting position and a final position. The drive unit comprises a motor (17), which is coupled to a crankshaft (15). A toggle joint (17, 19) in the form of two links is joined, firstly, to a crank pin (16) rotatable with the crankshaft (15), and, secondly, to a fixed pivot point (9) in the stand (1). A drive link (21) is articulated, on the one hand, to a link (19) in the toggle joint, and, on the other hand, to the tool holder (6). The toggle joint is also provided with elements (24, 25) for buckling ut from the extended alignment position in either direction, depending on the rotational direction of the crankshaft (15).