Abstract: A process of press-forming a strip fed in its longitudinal direction to continuously produce press-formed articles with arbitrary lengths through forming stages including a draw-forming stage, the process comprising the steps of: a first step of continuously forming a semi-finished product having a middle portion formed over a length corresponding to that of a final product and an unformed leading end connected to an unformed following end of a neighboring antecedent semi-finished product, while feeding a strip in the direction of the strip length at a selected pitch; a second step of simultaneously draw-forming the unformed leading end of the semi-finished product and the unformed following end of the neighboring antecedent semi-finished product to a selected shape, the ends being connected to the respective semi-finished products; and a third step of separating scrap from peripheries of the leading end of the semi-finished product and the following end of the neighboring antecedent semi-finished product.

Abstract: Cassette changing apparatus for index-feed machining systems having such a construction that a plurality of machining units, in which cassettes having machining means are provided, are disposed at predetermined intervals in the workpiece feeding direction in accordance with a plurality of machining processes; the cassette changing apparatus comprising a cassette transfer unit adapted to be movable in such a direction as to intersect with the workpiece feeding direction on a plane, and a cassette holder adapted to be approachable to and detachable from an index-feed machining system; a cassette being extracted from the index-feed machining system and housed in the cassette holder by means of the cassette transfer unit, and then another cassette holder housing a new cassette being moved to a loading position and mounted on the machining unit by means of the cassette transfer unit.

Abstract: An index-feed machining system having a pilot machining device for sequentially forming pilot portions on a workpiece indexed at predetermined pitches, a pilot guide means engaging with the pilot portions, and a plurality of independent machining means corresponding to a plurality of machining processes; all of these means being sequentially disposed in the feeding direction of workpiece; in which the pilot machining means and the pilot guide means are constructed integrally. The index-feed machining system lends itself to the easy positioning of machining means, and to the manufacture of high-precision products.

Abstract: A stamping and bending machine comprises a drive housing with a drive housing visual wall and two drive housing face walls. From each of the drive housing face walls projects at least one housing box. Processing devices are attachable to the housing boxes. A distributor gear is provided within the drive housing. Each of the housing boxes accommodates a housing box shaft drivingly connected with a distributor gear and with the processing devices.

Abstract: A tool changing apparatus for changing the punches and dies on a turret punch press is disclosed, wherein a carriage device provided with a upper rotatable disk on which a plurality of punches in removably supported, and a lower rotatable disk on which a die holders supporting a plurality of dies is removably supported, is positioned at the side of the turret punch press. A punch mounting/dismounting device is further provided for dismounting a punch from and mounting a punch on the upper rotatable disk and for dismounting a punch from and mounting a punch on an upper turret disk on the turret punch press. The punch mounting/dismounting device is adapted to transport the punch between the upper rotatable disk and the upper turret disk. A die mounting/dismounting device is yet further provided for moving the die holder back and forth between a lower turret disk on the turret punch press, and the lower rotatable disk.

Abstract: A spring manufacturing apparatus has a first mode in which a spring pitch is formed by inserting a wedge tool between coils of a wire material forcibly bent by a point tool, and a second mode in which the spring pitch is formed by pushing the bent wire material in a lateral direction. The first and second modes share the same driving source. The direction in which the wedge tool moves in the first mode and that in which the wire material is pushed in the second mode are substantially at right angles to each other, and therefore driving force in the first mode can be used also in the second mode by mounting on the apparatus a member that converts the direction of motion.

Abstract: A press machine is disclosed for which the main components are a movable ram and a striker device connected to the ram. The striker device includes a striker for striking a tool of the press machine and a drive mechanism to adjust the position of the striker with respect to the tool.

Abstract: In a processing machine, for example an automatic punching and bending machine, it is proposed to drive a plurality of processing devices by a reciprocatingly moved drive rod, control cams being mounted on the drive rod and cam followers being mounted on moving parts of the processing devices.

Abstract: A turret punch press wherein the upper and lower turrets are rotated, and the upper die positioned in the processing position is struck by a piston rod (striker element) of a striker device mounted on the lower end of a ram when the ram is lowered by means of a crank shaft (mechanical vertically moving means). The piston rod can be freely moved vertically by a hydraulic cylinder so that the amount of the stroke of the striker element with respect to the upper die is the sum of the amount of the stroke of the ram and the amount of the stroke of the piston rod in the hydraulic cylinder itself. Accordingly, the upper die and the lower die come into contact and the processing occurs only when the ram and the piston rod are both at bottom dead center.

Abstract: A turret punch press includes an upper and lower turrets for respectively supporting a plurality of punches and dies; the punches are arranged two-dimensionally in a punch mounting regions on the upper turret and the dies are arranged two-dimensionally in a die mounting region on the lower turret. The turret punch press further includes a ram and a striker for striking the punches. The striker is provided on a bottom of the ram so as to be movable in two horizontal directions above the punches indexed in a processing region. In the turret punch press, when the turret is indexed in the processing region, many punches and dies are simultaneously indexed in the processing region. Thus, by moving the striker in two horizontal directions above the punches indexed in the processing region, many successive punch operations can be quickly performed without intermediate rotation of the turrets.

Abstract: A pipe bending plier, including a planar plate connected with a housing and a pair of spaced stationary anvil members coupled with the plate, a movable presser slidably coupled with the planar plate and movable relative to the housing and the anvil members, a movable handle for moving the movable presser towards the anvil members, a fixed handle coupled with the housing and a spring coupled with the housing for holding the movable handle away from the fixed handle, a pawl-ratchet mechanism housed within the housing and comprising an extension arm on a portion thereof carrying a ratchet, and a pawl connected with the movable handle, the ratchet being coupled with the movable presser and operatively associated with the pawl in one direction of movement of the extension arm for movement by the extension arm in one orientation thereof towards the pair of spaced stationary anvil members and in another orientation of the extension arm, the pawl and the ratchet are disengaged so that the extension arm is movable tog

Abstract: A stamping tool for use in an auto-indexable tool station having a number of character inserts that can be rotatably moved below a striker area so that a thin metal plate or sheet of metal may be marked. The stamping tool allows for automatic adjustment of tool length for any variation in material thickness. A pneumatic cylinder actuates a mechanism that engages the key way in the head nut. The tool length is changed by the rotary motion of the auto-indexable tool station. The character housing is rotated by the indexable tool station through the punch key which moves the selected character insert to the striker area within the tool. The striker area causes the character insert which is spring biased to protrude lower than the character inserts that are not in the striker area. When the stamping tool is struck by the ram, only the character insert in the striker area will contact the material to be marked.

Abstract: A method and an apparatus for manufacturing a workpiece in plurality of manufacturing steps with small time losses between successive manufacturing steps, which utilizes a small number of manufacturing machines, according to which the manufacturing machines and the transferring machines are controlled such that while one manufacturing step is being applied by one manufacturing machine and then the workpiece is being transferred by the transferring machine from that one manufacturing machine to another manufacturing machine for applying a next manufacturing step to the workpiece, the another manufacturing machine is prepare for the next manufacturing step by placing an appropriate one of the manufacturing press dies under the ram of the press machine of the another manufacturing machine by intermittently moving the plurality of manufacturing press dies.

Abstract: A tool carrier for a punch or stamping machine in which the positioning piston-and-cylinder devices for respective actuating elements are disposed with a fixed center-to-center spacing from one another on opposite sides of a plane of symmetry and the tool holders are disposed in the tool carrier with their tools located symmetrically with respect to this plane so that individual tools can be operatively enabled by single actuating elements, larger tools by pairs of such actuating elements and even larger tools by two pairs of such actuating elements in symmetrical relationship.

Abstract: An improved hemming die fixture, used in conjunction with a sheet metal press, is disclosed. The fixture is attachable to the ram, or ram assembly, of a metal press and carries with it a hemming die. The fixture is automatically displacable between working and standby positions. When not in use, the hemming die fixture is placed in a standby position wherein it is placed parallel to the ram of the press, and away from a primary die on the bottom of the ram. When required, the fixture may be actuated to place a hemming die parallel to, and below, the primary die located along the bottom of the ram. The hemming die then coacts with the work table, or second flat hemming die, of the press to form a hem along a longitudinal edge of a piece of sheet metal in a plane other than the plane in which a full bend is first formed along the edge of the sheet metal.

Abstract: A tire bead wire apparatus comprising a festoon mechanism for accumulating a bead wire strip, movable bead transferring means for transferring the bead wire strip fed from the festoon mechanism, cutting means for cutting the bead wire strip into predetermined lengths, a rotatable bead former assembly comprising a plurality of different bead formers which are different in diameter in relation to one another, former rotating means for driving the bead formers to rotate about their own axes, means for holding the end portion of the cut bead wire strip against a peripheral surface of the bead former, and pressing means for joining together the end portions of the cut bead wire strip to form an annular bead wire.

Abstract: The apparatus of this invention, for bending wire and metal strip, comprises a stationary working plate, a drive shaft rotatable in bearings spaced along its length and fixed relative to the working plate, and a tool guide unit confined to adjustment relative to the working plate in directions parallel to the drive shaft and carrying a tool slide that it guides for reciprocation transverse to the drive shaft. A cam on the drive shaft by which the tool slide is reciprocated is fixed to an axial sleeve portion concentric to the drive shaft and axially slidable along it, which sleeve portion is rotatably received in a cam bearing that is secured in the tool guide unit. The cam bearing thus radially supports the cam and the drive shaft so that the drive shaft can be relatively slender and light.

Abstract: A roll stand has a frame, an upper backup roll and a lower backup roll rotatable in the frame about respective vertically spaced axes, and an upper working roll and a lower working roll flanked by and operatively engaging the respective backup rolls. A workpiece normally passes horizontally through the nip formed by the working rolls. Actuators can urge the backup rolls toward each other with a high force and with a low force. Respective upper and lower drives are connected to the respective backup rolls and energizable for rotating same and thereby pulling the workpiece engaged between the working rolls through the roll stand. A clutch is connected between one of the drives and the respective backup roll and is openable to rotationally disconnect the one drive from its backup roll. A controller is connected to the one drive and the clutch for deenergizing the one drive and opening the clutch for low-force rolling. For high-force rolling the clutch is closed and both drives are energized.

Abstract: A combination tab lifting and crimping tool for lifting and crimping tabs which have been bent over a flange consisting of a casing having a pair of openings at opposite ends thereof and an elongated tool channel therein communicating with the openings. An elongated tool member is slidably mounted the tool channel and has a tab lifting finger proximate a tab lifting end of the casing and a tab crimping face proximate a tab crimping end of same. A flange gripping finger is affixed to the tab crimping end of the casing. A trigger is pivotally mounted in the casing and has a tool engaging end in the interior of the casing coupled to the elongated tool intermediate the tab lifting finger and the tab crimping face.

Abstract: A punch press construction is disclosed which includes a die set which can be slidably removed from the frame of the press. The press includes a double-acting fluid actuator having a piston rod which extends downwardly through the upper portion of the generally inverted U-shaped press frame. The die set comprises upper and lower die plates, with the slidable mounting arrangement comprising a pair of inwardly opening receiving grooves for slidably receiving the opposite edge portions of the lower die plate, and a coupling arrangement for operatively connecting the upper die plate and the actuator piston rod for vertical reciprocal movement together attendant to slidable positioning of the die set within the press frame.

Abstract: A workpiece processing machine comprises a stationary main frame 10 with at least one main processing plane G. On the one side of this main processing plane there are arranged worm shafts 15, 16, 17 and 18 extending with their axes substantially parallel with the main processing plane G, mounted in the stationary main frame 10 and connected for drive with one another. On the other side of the main processing plane G there are provided securers for the securing of processing units 25 on the stationary main frame 10. To each worm shaft there is allocated at least one main power take-off position 15a, 16a, 17a, 18a for the drive connection of a processing unit 25 with the respective worm shaft 15, 16, 17, 18 through a worm wheel, meshing with the worm shaft, with worm wheel axis perpendicular to the main processing plane G. At least three worm shafts connected for drive are arranged along mutually adjoining sides of a polygonal line.

Abstract: A stamping and bending machine, having modular structure, comprises a drive unit, a pull-in feed system, a stamping press and one or several bending appliances are disclosed. Every bending appliance comprises one top and one bottom box of oblong shape forming a closed frame thanks to spacing elements. Within every box, there are two drive shafts which actuate bending attachments provided on the front and rear faces of the top as well as of the bottom boxes. The drive shafts of stamping press and of all bending appliances are coupled frontally. The shafts will all be driven at the same high speed, stepping down being performed not earlier than at a take-off gearing comprised in any bending attachment.

Abstract: A press brake adapted to apply bending on metal blanks in the form of a sheet or plate includes a plurality of die assemblies located on a die holder at intervals of a predetermined distance in the direction perpendicular to the logitudinal direction of a bed of the press brake. The die holder is mounted on the bed movably in the direction perpendicular to the longitudinal direction of the bed. Each of the die assemblies is provided with an upper die and a lower die which are associated with each other and movable vertically towards and away from each other. The press brake further includes a pair of front and inside stoppers located on the front side and the inner side of the press brake body, respectively, so as to be movable freely towards and away from each other and pass through a space between the upper and lower dies.

Abstract: Bending presses equipped with the tool arrangement permit sheet blanks or metal plating to be bent in series in accordance with predetermined programs without having to perform time consuming tool exchange operations after each single operative or working step. The tool arrangement comprises a first tool and a second two-piece auxiliary tool. Both parts of the auxiliary second tool are subdivided into segments as is the case also for the first tool and the tool holding fixture or support and are supported at a hydraulic cushion. The segmental matching design of the tool holding fixture, the first tool, the auxiliary second tool and the bottom dies additionally enables the two types of tools and their associated bottom dies to be simultaneously controllably directed into a respective operative position over part of the length of the bending press.

Abstract: Panel forming apparatus for producing a curved panel from a straight panel disclosed has first and second pairs of wall-indenting dies (281, 282 and 283, 284) spaced from one another to receive therebetween each inclined sidewall portion of a straight panel. A hydraulic motor (M1) is coupled by a power train to rotate said first pair of wall-indenting dies. A hydraulic motor (M2) is coupled by a second power train to rotate the second pair of wall-indenting dies. A third pair of wall-indenting dies (121, 122) is located downstream of the first-mentioned pairs of dies to receive the intermediate wall portion of the panel between each of the third pairs and engage the intermediate wall portion of the panel after it has passed through the first-mentioned pairs of dies. A third hydraulic motor (M3) is coupled by a third power train to rotate the third pair of wall-indenting dies. A tank 301 and pumps (P1, P2) deliver fluid under pressure to the motors.

Abstract: A punch press (20), for punching a workpiece, utilizing an elongated punch support which is formed from removable interconnected punch cartridges (92) and an elongated die support which is formed from removable interconnected die cartridges (94). A punch head (32) is supported from a frame (30) which spans the punching area. A two axis positioning system is provided for positioning the sheet metal workpiece within the punching area beneath the punch head. Punch head (32) through appropriate mechanical interposer (160) engages a punch which in conjunction with an associated die, positioned there beneath, forms a hole in the workpiece. The elongated punch sections (92) and die sections (94) can be moved out of the punch press frame, disengaged and removed or replaced. The first punch section (92) and first die section (94) engage driver sections (192, 194) which are disposed in the frame (30). The driver sections (192, 194) are then moved to bring the tool supporting sections (92, 94) into the press.

Abstract: Disclosed is a forging press including an automatic rolling key die lock comprising a forging ram and a forging frame including a die socket with an inner sidewall slot. A die, preferably comprising a split ring die, is received in the die socket and includes a mating slot for mating alignment with the press sidewall slot. A rolling key is received in the sidewall slot and the mating slot comprising an elongated bar including an intermediate undercut portion and a connecting member eccentrically secured to one terminal end of the bar. A lever is operatively engaged at one end to the connecting member for rotation of the rolling key upon selective operation of the lever, and operatively engaged at a second end to the ram for operation of the lever upon selective advancement and retraction of the ram.

Abstract: A novel panel and panel assembly for use in building-type structures, together with panel forming apparatus are disclosed which are especially suitable for using portable, point-of-use, continuously operable, roll-forming techniques. The panel is characterized by upwardly diverging inclined sidewall portions (26, 27), wing portions (28, 29) of substantial lateral extent in relation to an intermediate wall portion that forms the bottom thereof, and centered edge fastening structure (31, 32). This panel provides a greater panel width per sheet stock width, ease of assembly, spacing and tracking surfaces for continuous edge seaming, and balanced strength with respect to loading. The panel assembly has continuous seam structure (54) with abutting inclined side sections (41, 47) and centered interlocking lateral flange portions (46, 53).

Abstract: A punch press having a punch holder and a die holder rotatably mounted on vertically spaced upper and lower plates, respectively. A punch and the corresponding die are held in the punch and die holders, respectively, for rotation therewith. The punch is cooperable with the die to machine the workpiece positioned therebetween when a predetermined angular attitude of the punch relative to the die is maintained. A detector is provided for checking whether the predetermined relation in angular attitude between the punch and the die is maintained when they are in their home positions and when they are angularly displaced from their home positions. Preferably, the upper and lower plates are arranged into upper and lower turrets rotatably holding a plurality of circumferentially spaced punch and die holders, respectively.

Abstract: An arrangement for treating generally planar workpieces has two shafts provided on their endfaces with carriers for sets of tools. These sets can be moved with their carriers so that all tools of each set move relative to a center plane between the endfaces, and any one tool of the respective set can be placed into a position closest to the center plane during such movement of the entire set of tools.

Abstract: A machine, particularly for stamping or nibbling, comprises a reciprocating tool drive having a plurality of tools connected to the drive for selective reciprocation thereof. The drive includes means for stopping at least one of the tools for exchange purposes and a tool-change member is mounted for movement alongside the tool drive and includes a member movable transversely to the reciprocation direction for engaging and removing a tool which is stopped or disconnected from the drive in order to effect an exchange with another tool without stopping the drives of these other tools. The machine also includes means for engaging and moving a workpiece transverse to the reciprocating direction.

Abstract: A single electric motor is employed to drive two, separate backup roll supporting shafts which are mounted to rotate about a common horizontal axis. A first, solid, cylindrical backup roll of relatively small diameter (less than 11/2") is secured to one end of one of said shafts for rotation beneath a first grooving roll, and a second, relatively larger diameter backup roll (greater than 11/2" and less than 2"), which is annular in configuration, is secured coaxially to one end of the other shaft for rotation thereby beneath a second grooving roll. Each grooving roll is mounted for vertical reciprocation by springs and by a hydraulic ram supplied by fluid from a separate hand pump. Means is also provided for adjustably limiting the descent of each backup roll.

Abstract: The invention relates to roll-forming of metals and can be advantageously utilized for cross rolling of workpieces in the form of solids of revolution in small-lot and lot production, where frequent replacement of working tools is required. The cross rolling mill of the invention comprises a housing in which guides perpendicular to the axis of rolling are capable of setting up swivel round axes perpendicular to the axis of rolling. Seated in the guides are slides which carry face-to-face positioned plain wedge-shaped tools that define a working pair having a clearance to accomodate the workpiece being rolled.

Abstract: A machine bed supports stationary and rotary fixing means that are aligned for receiving bar stock therebetween. Electrical or electromechanical control means are provided for selecting and effecting, via a motor-driven step-down gear, exactly a predetermined amount of rotation of the rotary fixing means. Various detachable matching pieces hold opposite portions of the bar stock within the stationary and rotary fixing means, respectively, while the material is worked. Openings in the matching pieces positively fit the bar stock. The outer contour of the matching pieces permits insertion in the stationary and rotary fixing means for positive fit therein. A preferred embodiment of the apparatus serves the purpose of cold twisting square steel bars either singly or, for obtaining volutes, in bunches. Removal of worked bar stock is facilitated by a handwheel enabling the operator to manually counter-rotate the rotary fixing means by a selected small angle.

Abstract: This invention relates to an improved apparatus for pulling deformations out of sheet metal and metal frames of automobiles, and other vehicles or other items having metal parts.The improvements are directed towards chain pulley assemblies, through which pulling chains travel. The chain pulley assemblies allow locking of the pulling chain within the tracks of the pulley assemblies, prevent loss of pull on one chain assembly, even though the pull angle is changed on another chain assembly during the course of the pull, and permit two or more individual controlled pulls to be accomplished at the same time.

Abstract: A puching press with a very strong main swanneck frame having an upper arm carrying a punching head equipped with an actuating slide, and a lower arm provided with an anvil. A rotary turret is provided with a plurality of punches engageable selectively with the actuating slide by rotation of the turret, and the turret is also provided with a plurality of punching dies each corresponding to a punch and locatable over the anvil by synchronous rotation with the punches. The turret is mounted on a second swanneck frame disposed outside of the slot of the first swanneck frame.