Abstract: A cutting device for a continuous milling machine for the profiling of one or more edges of panels has a slide shoe or pressure shoe, which has a sliding surface or sliding surfaces for guiding a surface of a panel to be milled over it or them. The aforementioned slide shoe or pressure shoe is provided with at least one cutting blade for machining the panel; the cutting blade maintains a fixed position during this machining. The slide shoe or the pressure shoe is provided in order to support the surface of the panel to be milled by means of its sliding surface or sliding surfaces on a rotating milling cutter that carries out a milling operation on the edge of the panel.

Abstract: A forming assembly for use in a can bodymaker includes a stationary assembly and a moving assembly movably coupled to the stationary assembly. The stationary assembly and the moving assembly are a unified assembly that is structured to be selectively coupled to a mounting assembly body of the can bodymaker. The moving assembly is structured to be selectively coupled to a ram drive assembly of the can bodymaker and moved with respect to the stationary assembly thereby.

Abstract: A machine is disclosed for the expansion of pipes for heat exchangers, including a machine frame equipped with a drive unit for pressing or pulling an expansion mandrel through a pipe as well as an expansion mandrel. In at least one embodiment, the machine includes at least one drive unit with at least one motor-driven drum as well as a band or wire guide which extends horizontally from an outlet of the drum and forwardly to the pipe, the drive unit including a set of lateral plates. In at least one embodiment, the drum is disposed between the lateral plates of the drive unit and is equipped with a band or a wire and is additionally adapted to press or pull a band or a wire with an expansion mandrel through a pipe, wherein the expansion mandrel is expandable.

Abstract: A portable rescue tool that is powered by an electric motor. The electric motor has a drive output shaft that transfers rotational power to an angle rotary gearbox. The angle rotary gearbox has an output shaft that is oriented about 90 degrees from the rotational axis of the motor output shaft and is geared so as to increase the torque and reduce the speed of the rotational power. The angle rotary gearbox provides a reduced speed, high torque output at an output shaft that is delivered by a single chain drive to a main rotary actuator where two actuator arms are controlled to move away from each other and toward each other in the operation of the rescue tool. The portable rescue tool is designed to be of a low weight and enhanced cooling properties as present rescue tools.

Abstract: A necking machine (1) having a plurality of processing stations on a rotating tool carrier (7). The motion of the tool carrier (7) with respect to the work pieces is carried out by a crankshaft (25). This is carried out by a non-constant gear. The gear includes two non-round gearwheels (21, 23) that improve a rotational-speed profile of the crankshaft (25) and thus a velocity profile, in particular, in an area of the dead center.

Abstract: Apparatus and methods for use of synchronized plural epicyclical transmissions to stabilize and to drive an output gear of a machine capable of bending tubing, conduit, and pipe requiring high torque, as well as swaging, cutting, and threading. One embodiment of the apparatus includes multiple transmissions encircling and engaged with a centrally mounted motor. Another embodiment of the apparatus includes multiple transmissions, each engaged with a mounted motor. Transmissions can be equidistantly spaced around the perimeter of an output gear.

Abstract: A modular rolling mill has a mill pass line along which products roll. The rolling mill comprises first gear units arranged along a first line parallel to the mill pass line. Each first gear unit is driven individually by a motor and has a pair of mechanically interconnected first shafts. Second gear units are arranged along a second line between and parallel to the first line and the mill pass line. Each second gear unit has a pair of mechanically interconnected second shafts. Rolling units are arranged along the mill pass line, which are driven by an input shaft and has a pair of roll shafts carrying work rolls. First couplings connect the first shafts of each first gear unit to second shafts of two successive gear units, and second couplings releasably connect the second shafts of the second gear units to the input shafts of two successive rolling units.

Abstract: Servo hemming press includes a direct drive system powered with a centrally located common planetary gear servo drive. A pair of connecting rods can actuate a slide vertically up and down to close the hemming tools and can perform the desired hemming operation. A planetary gear box preferably with dual output shafts is directly coupled to the crank shafts through couplings. The bottom end of the connecting rod can be connected to a pivot pin block that is secured to the base of the press. A spring-type overload protector can be incorporated between the base and the pivot pin block to protect the press from possible overloading beyond the rated tonnage capacity. The desired torque to deliver the rated tonnage to perform the hemming operation is delivered directly by a servo motor connected to the planetary gear box, thereby eliminating a flywheel and clutch of earlier systems.

Abstract: A multi-stage can necking machine having distributed drives is provided. The multi-stage can necking machine may include a plural of operation stages, wherein at least some of the operation stages may be configured for can necking operations. Each operation stage may include a main turret shaft, a transfer starwheel shaft, and a support for mounting the main turret shaft and transfer starwheel shaft. Each main turret shaft and transfer starwheel shaft may have a gear, and the gears of the operation stages may be in meshed communication to form a continuous gear train. A plural of motors may be distributed among the operation stages and mechanically coupled to the gear train, wherein each one of the motors may be capable of transmitting power to the gear train.

Abstract: The invention relates to a gear train unit comprising a plurality of planetary gear train stages, which are connected one after the other and which each comprise a ring gear (4, 4a, 4b), a sun gear (2a, 21, 21a) and a plurality of planet gears (3, 3a, 3b) supported on a planet carrier (5, 5a, 6), wherein the sun (2a, 21, 21a) of each following planetary gear train stage is formed by the planet gear carrier (5, 5a) of the preceding planetary gear train stage. The gear train unit comprises a drive element (2), which forms the sun gear (2a) of the first planetary gear train stage, and an output element (17), which is connected in a torsionally rigid manner to the planet gear carrier (6) of the last planetary gear train stage. The gear train unit can be shifted in such a way that either a first or a second gear ratio can be set.

Abstract: A hydraulic pressing and/or cutting tool (1) comprises an electric motor (6), a converting mechanism (8) suitable to convert the rotary motion of the motor (9) to an oscillating translational motion, a hydraulic pump (11) suitable to carry out, in response to the oscillating translational motion, an increase in the pressure of a pressure fluid acting on an operating piston (12) such that the operating piston (12) is displaced, a stationary jaw (13) and a movable jaw (14) connected to the operating piston (12) such that, in response to the displacement of the operating piston (12), the movable jaw is displaced to the stationary jaw (13) to carry out pressing or cutting operations. The converting mechanism (8) comprises an epicycloidal gear (16) and a thrust unit (17) co-axial with the epicycloidal gear (16).

Abstract: Apparatus and methods for use of synchronized plural epicyclical transmissions to stabilize and to drive an output gear of a machine capable of bending tubing, conduit, and pipe requiring high torque, as well as swaging, cutting, and threading. One embodiment of the apparatus includes multiple transmissions encircling and engaged with a centrally mounted motor. Another embodiment of the apparatus includes multiple transmissions, each engaged with a mounted motor. Transmissions can be equidistantly spaced around the perimeter of an output gear.

Abstract: A modular rolling mill has a mill pass line along which products are rolled in a rolling direction. The rolling mill comprises first gear units arranged along a first line parallel to the mill pass mill line. Each first gear unit is driven individually by a motor and has a pair of mechanically interconnected output shafts. Second gear units are arranged along a second line between and parallel to both the first line and the mill pass line. Each second gear unit has a pair of mechanically interconnected input shafts driving a pair of output shafts. Rolling units are arranged in succession along the mill pass line. Each rolling unit is driven by an input shaft and has a pair of mechanically interconnected roll shafts carrying work rolls. First couplings connect the output shafts of each first gear unit to input shafts of two successive gear units, and second couplings releasably connect the output shafts of the second gear units to the input shafts of two successive rolling units.

Abstract: A machine is disclosed for the expansion of pipes for heat exchangers, including a machine frame equipped with a drive unit for pressing or pulling an expansion mandrel through a pipe as well as an expansion mandrel. In at least one embodiment, the machine includes at least one drive unit with at least one motor-driven drum as well as a band or wire guide which extends horizontally from an outlet of the drum and forwardly to the pipe, the drive unit including a set of lateral plates. In at least one embodiment, the drum is disposed between the lateral plates of the drive unit and is equipped with a band or a wire and is additionally adapted to press or pull a band or a wire with an expansion mandrel through a pipe, wherein the expansion mandrel is expandable.

Abstract: A press machine controller (10) for controlling a press machine (30) having a servo motor (41) to drive a slide (38) via a reduction mechanism (37) changed in reduction ratio in accordance with the position of the slide (38) is disclosed. The device includes a command generator (20) for generating at least one of a position command, a speed command and a torque command for the servo motor (41); a vibration command generator (13) for generating a vibration command based on a parameter preset for the press machine controller (10); a slide position detector (12) for detecting the position of the slide (38); and a vibration command adding portion (21, 22, 23) for adding the vibration command to any one of the position command, the speed command and the torque command for the servo motor (41) in the case where the slide position is in a predetermined range. The press machine, even if stopped with the slide at the bottom dead center, can be restarted with a small torque.

Abstract: Servo hemming press includes a direct drive system powered with a centrally located common planetary gear servo drive. A pair of connecting rods can actuate a slide vertically up and down to close the hemming tools and can perform the desired hemming operation. A planetary gear box preferably with dual output shafts is directly coupled to the crank shafts through couplings. The bottom end of the connecting rod can be connected to a pivot pin block that is secured to the base of the press. A spring-type overload protector can be incorporated between the base and the pivot pin block to protect the press from possible overloading beyond the rated tonnage capacity. The desired torque to deliver the rated tonnage to perform the hemming operation is delivered directly by a servo motor connected to the planetary gear box, thereby eliminating a flywheel and clutch of earlier systems.

Abstract: A container bodymaker gearbox (20, 130) drives rams (60, 66) linearly by use of a hypocycloid drive that controls operation of a rotating and orbiting output shaft (40) by synchronizing the rotating and orbiting motion such that a tracking point at a predetermined radius from the shaft 40 tracks a straight line. A coaxial sleeve (124) is spaced around shaft (40) and carries an annular crank hub (140) on bearings (142). The crank hub (140) is eccentrically mounted on the sleeve (124) with the hub centerpoint positioned to track the straight line tracking point. A rotary ring (166) mounted around the periphery of the crank hub (140) supports diametrically opposed connections (176) to rams (60, 66). The ring (166) and rams (60, 66) translate on the straight-line path determined by the centerpoint, with the hub (140) rotating as required within the ring (166) to cancel rotary motion of hub (14) from the translational motion of the ring (166).

Abstract: In the case of a drive arrangement for a rolling mill, comprising at least one drive motor (M), a main gear mechanism (HG), a pinion gear mechanism (KWG), a rolling stand (G) with working rolls (AW), and the spindles, couplings and the like which connect these components, the main gear mechanism (HG) is a single-stage one and the drive axis (AN) is spaced apart from the output axis (AB) by an upwardly directed, vertical spacing (vA).

Abstract: A ratchet crimping tool is disclosed. The ratchet crimping tool comprises a tool head cover board structure, a tool handle structure, a transmission device, and a tool handle. The transmission device further comprises an anti-backup mechanism, an advancement mechanism and a gear structure. The ratchet crimping tool uses a coaxial tool head, a confirming-indicating device and an adjustable jaw structure. The coaxial tool head comprises a movable tool handle and a fixed tool handle. A gear of the movable tool head is engaged with the gear structure of the transmission device, and the adjustable jaw structure is connected with the movable tool handle. The confirming-indicating device is connected with the movable tool handle and the fixed tool handle respectively. The coaxial tool head is connected with a tool head cover board structure by link pins, and the gear structure of the transmission device is connected with the movable tool handle by connecting pins via upper and lower cover boards.

Abstract: A pipe bending machine having an improved movement transmission to a bending die comprises a body (1) and a head (2). Housed in the body (1) is a motor (3) having an output shaft (4) supporting a driving gear wheel (5), which is located in the machine head (2). Located in the same machine head (2) is a driven gear wheel (8), which is connected to a pipe bending die (6). A couple of intermediate gear wheels (9, 10) engage both the driving gear wheel (5) and the driven gear wheel (8).

Abstract: A servo drive system of a press machine includes a ram, an operation shaft which vertically moves the ram, and a servo motor which operates as a power source of the ram and which generates ram pressure using a torque based on at least one speed-torque characteristic of the servo motor. The operation shaft is directly driven using the servo motor. The at least one speed-torque characteristic of the servo motor is set in a manner such that a motor torque of the servo motor at which a capacity of electric energy supplied by a servo amplifier is determined becomes the motor torque at which an optimal punching pattern of the ram is generated from a light load to a heavy load according to a type of workpiece to be worked by the press machine.

Abstract: A spring manufacturing apparatus comprises a tool support (30, 40, 50) which supports a tool in a way that the tool can be slid toward the spring forming space. A plurality of the tool supports can be arranged in a radial pattern from the spring forming space on the forming table. The apparatus also comprises a driving force transmission unit (70), attached to the tool support on the forming table, which transmits driving force to the tool support for sliding the tool. The tool support includes first and second tool supports for driving a tool by different driving methods. The first tool support (30) comprises a first driving mechanism (32) that transmits driving force of a common driving axis to the tool. The second tool support (40) comprises a second driving mechanism (41) that transmits driving force of the driving axis to the tool.

Abstract: Tubing reaming apparatus comprises a housing adapted to be mounted to tubing to be reamed. The housing provides mounting for a reamer shaft adapted to mount a cutter within the tubing. The housing also provides mounting for a drive arrangement. A gear arrangement is provided between the drive arrangement and the reamer shaft. The housing may comprise a clamping arrangement adapted to reduce residual bend and ovality of the tubing.

Abstract: A servo drive system of a press machine has a pair of servo motors which can generate necessary ram pressure by compositing and using a torque based on the same speed-torque characteristics. The servo motors are symmetric with each other in a mirror image manner. The servo motors are opposed to each other at opposite ends of an operation shaft which vertically moves a ram. The servo motors are integrally operated, thereby directly driving the operation shaft.

Abstract: Disclosed is a shape forming device for use with dies to provide cut, punched and embossed objects made from a variety of media. The shape forming device includes a housing that contains at least one pair of rollers oriented substantially parallel to one another, a power supply, electrically connected to the pair of rollers to drive their rotation so as to permit the feeding of a die between the rollers.

Abstract: The present invention of pipe-bending apparatus includes: a frame, a bending shoe having gear teeth and concave groove on its outer circumference, a drive-gear, a gear rack having gear teeth and concave groove on one surface and gear teeth only on opposite surface. The frame pivotally supports bending shoe and drive-gear, positions gear rack engaging bending shoe and drive-gear. When using the pipe-bending apparatus, a straight pipe is laid inside the groove on gear rack with one pipe portion secured to bending shoe. Force is applied to turn drive gear, with all gear components engaged, gear rack and pipe transverse downwards and turns bending shoe. With one pipe portion secured to and turning with bending shoe, the pipe begins bending inside the concave groove on bending shoe.

Abstract: The drive housing (26) of a bodymaker (20) carries a major ring (32) in stationary position and a planetary ring carrier (36, 46) for rotation on the central axis of the major ring. The planetary ring carrier (36, 46) carries a minor planetary ring (34) in internal engagement with the major ring (32) for rotation on its own axis in rolling orbit against the inside circumference of the major ring (32). A crank (54) is connected to rotate with the planetary ring and provides a journal (56) positioned at the circumference of the planetary ring (34) for drivingly engaging a ram (60). The diameter of the planetary ring (34) is one-half the diameter of the major ring (32), establishing a straight-line path of movement for the journal (56) along an axis (X-X) parallel to a selected diameter of the major ring (32). A frame (22, 72) supports ram (60) in suitable position with respect to drive housing (26) for straight-line reciprocation on the axis (X-X) parallel to the selected diameter.

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

Abstract: A hydraulic operated tool includes a body (B), a pair of jaws (21) mounted with respect to the body so that at least one of the jaws is movable between an opened jaw position and a closed jaw position so as to engage workpiece (W) between the jaws. A ram assembly (2) is disposed in the body and is operatively associated with the jaws. Spring structure (1) causes the ram assembly to move thereby causing the jaws to initially engage the workpiece with a first force. A pump assembly (7) exerts fluid on the ram assembly to move the ram assembly further, causing the jaws to exert a second force, greater than the first force, on the workpiece.

Abstract: A punch press that provides an arrangement of a motor and a crank mechanism so that the motor does not project far from the side of a frame. The punch press includes a servo motor, a ram which drives a press tool, a crank mechanism which converts a rotating motion transmitted to a crank shaft into an elevating and lowering operation of the ram, and a drive transmitting mechanism which transmits rotation of the servo motor to the crank shaft while reducing rotation speed. The servo motor is next to the crank mechanism and its rotating axis is parallel to the axis of the crank shaft. The drive transmitting mechanism includes servo motor side gears joined to respective output shafts of the servo motor. The servo motor side gears respectively engage, directly or via intermediate gears, with crank side gears joined to the crank shaft.

Abstract: To efficiently manufacture springs having various kinds of shapes, a spring manufacturing machine is structured such as to bend a wire by two inner engagement projections (47) by adjusting a position of a position adjusting table (34), fitting a gap (46) to the wire fed out from a final wire guide (13) and temporarily stopping, and thereafter rotating a rotation spindle (48), and also to bend a wire on the basis of a cooperation of an outer engagement projection (44) and the inner engagement projection (47) by adjusting the position of the position adjusting table (34), fitting the gap (46) to the wire fed out from the final wire guide (13) and temporarily stopping, and thereafter rotating a rotation sleeve (45).

Abstract: A forming machine according to the invention comprises at least one forming station having a punch and a die as tools and a device for setting the axial position of one of the two tools. The setting device has, as adjusting wedge, a rotary wedge disk which is rotatable about a rotation axis and bears with a bearing surface against a parent body. The rotary wedge disk is provided with an inclined plane on the other disk side. The setting device also comprises a pressure piece which is composed of a pressure part and a rotary part having an end face. The end face bears against the inclined plane in such a way that it is displaced relative to the rotary wedge disk eccentrically to the rotation axis when the rotary wedge disk is rotated, the axial distance between pressure piece and parent body changing in the process. Since the adjusting wedge is a rotary wedge disk, the bearing surface rotates on the parent body and is not displaced longitudinally during an adjustment.

Abstract: The application relates to an all-purpose pressing-bending machine having a feeding device (11) for feeding a material to be bent to a plurality of bending tool supporting slides (5), associated with a supporting plate (2). At least one of the bending tool supporting slides (5) can be operated independently from the other slides by a corresponding motor-reducing unit (6), each of the motor-reducing units being coupled to an electronic control device.

Abstract: The invention relates to a machine for stamping, bending and/or mounting of sheet metal parts with at least one upper housing part 14 and at least one lower housing part 16. Preferably, several are arranged in a row. On each housing part 14, 16 the carriage apparatus 20 is engaged by a motor. In order to increase the productivity of the machine, the carriage is driven by a program-controlled synchronous motor. In one embodiment a gear is positioned between motor and carriage which is formed preferably as an eccentric disc, connecting rod or elbow lever. The program-controlled synchronous motor is embodied as a torque motor and coupled by the gear member with the carriage.

Abstract: A mechanical press includes an easy load tilt out loading position that improves operator visibility when loading parts onto operation specific tooling, and which also increases the speed of which such parts can be loaded (and unloaded), and finally reduces the chance of operator error. The mechanical press includes a frame having a press head, a base pivotable between a load position and a working position, and a tie rod coupling the press head and the base. The press head is configured to reciprocate along a first longitudinal axis, responsive to an operator input such as pulling or rotating a handle. The press head and the base each include features configured to allow respective attachment of a first tool and a second tool, and whose specific configuration depends on the operation being performed by the press (i.e., shaping, assembly requiring pressure, etc.) The press head, when in the first position, is operative via the tie rod to place the base in the load position.

Abstract: A transmission mechanism used in a spring winding machine is constructed to include a rotary table, the rotary table having an eccentric main shaft protruded over first and second sides thereof. A wire feeding box having an intermediate gear, a transfer cylinder set formed of a wire-transfer cylinder and an impression cylinder adapted for transferring a spring wire for processing, a spur gear coaxially connected to the wire-transfer cylinder and meshed with the intermediate gear, a first bevel gear fixedly mounted on the other end of the main shaft, a second bevel gear coaxially connected to the intermediate gear, a wire feeding motor installed in the first side of the rotary table and adapted for rotating the driven gear and the main shaft, and a reversible wire winding motor adapted for rotating the rotary table clockwise/counter-clockwise through 180° through a transmission belt.

Abstract: The present invention relates to a riveting apparatus, having an electrically operated drive motor which has a motor shaft for driving a riveting device of the riveting apparatus, the riveting device having a gearing for transferring the rotational movement of the motor shaft into a linear movement of the riveting device having a constant transmission ratio. In order to reduce the power consumption of a riveting apparatus of that kind, the invention provides at least one flywheel which can be connected in a releasable manner with the motor shaft via a coupling.

Abstract: A closure panel hemming apparatus includes a lower support supporting a lower hemming die and an upper support spaced from and mounted above the lower support supporting an upper hemming die. The upper and lower supports are relatively vertically moveable for bringing the dies toward and away from one another. At least one guide post interconnects the upper and lower supports and maintains alignment of the upper and lower supports during movement thereof. A plurality of actuators of the ball screw or rack and pinion type is driveably connected to draw together the upper and lower supports bringing the dies together for edge hemming preformed metal panels nested between the dies.

Abstract: The present invention relates to a rivet setting device having an electric drive motor, at lease one rivet setting means driven by drive motor, at least one rechargeable battery for supplying power to the drive motor, and a circuit for controlling the power supply to the drive motor.

Abstract: The present invention relates to a rivet setting device having an electric drive motor, a rivet setting means in a crank drive for driving the rivet setting means by the drive motor, wherein the crank drive assumes a rest position in one of its dead-center positions and, starting from its rest position, can be rotated by at least one complete rotation for performing a rivet setting operation of the rivet setting means. In order to simplify the construction of such a rivet setting device, the drive motor, the crank drive and the rivet setting means are in permanent operative communication according to the invention and a control means is provided for deactivating the drive motor when the crank drive is in its rest position after the rivet setting operation has been carried out.

Abstract: A stamping and bending machine (10) has upper and lower horizontal supports (18, 16) in each of which are formed two longitudinal chambers (80) which open out through broad longitudinal slits (86) on opposite sides of the horizontal supports (16, 18). On both lateral faces of the horizontal supports (16, 18) carriage assemblies (26) are fixed; each of these carries an angular gear (36) which is encapsulated in a gear housing and protrudes through the longitudinal slit (86) into the appropriate longitudinal chamber (80). The angular gears (36) in each longitudinal chamber (80) are provided with coaxial through-channels with polygonal profiles. A drive shaft (28) with matching polygonal profiles is inserted through the angular gear (36) of each longitudinal channel (80) and couples the carriage assemblies (26) together.

Abstract: A rod driver gear for a tubing expander is operable to drive a rod having a circumferentially extending outer surface with a plurality of grooves extending traversely across a longitudinal axis of the rod. The rod driver gear includes an annular body rotatably mounted to a frame of the tubing expander and connected to a power source of the tubing expander. The annular body has a ridged outer diameter surface. Each ridge of the outer diameter surface is dimensioned to extend into the grooves of the rod to sequentially engage the grooves of the rods when the power source rotates the annular body to thereby move the rod along the longitudinal axis of the rod. In a preferred embodiment, the outer diameter surface of the annular body has a plurality of grooves extending across the surface, and a plurality of pins are inserted through a bore into the grooves. A portion of the pins extends from the grooves to constitute the ridges.

Abstract: A pressing tool for transforming workpieces includes a first fixed position die for transforming the workpiece. A second die cooperates with the first die in transformation of the workpiece, and the second die is coupled to and movable in response to operation of a forward feed device. The forward feed device comprises a rough feed device for relatively rapidly moving the second die toward the workpiece, and a fine feed gear for relatively slowly moving the second die toward the workpiece. The fine feed gear is coupled to and movable with the rough feed device. The forward feed device causes control over movement of the forward feed device to be shined from the rough feed device to the fine feed gear upon engagement of the second die with the workpiece.

Abstract: An automatic forming machine for hot forging workpieces conveyed step by step through the forging area has a driven eccentric shaft upon which is mounted a connecting rod linked to an up-and-down movable tool carriage.

Abstract: The present invention can provide a method and an apparatus for bending a pipe whose bending cross section has reduced compressed ratio, reduced reduction ratio of area and reduced reduction in thickness and in which bending can be conducted at the desired curvature. In the present invention, both edges of the pipe bending portion are arrested and grasped, a center of one bending edge is set to be the axis and a revolution axis is amounted on it, a rotation axis is mounted at a center of the other bending edge and gears are installed on the revolution axis and the rotation axis so as to engage each other so that the driving is driven to the gear on the rotation axis. The rotation axis revolves having the radius to be the distance from the rotation axis to the revolution axis and at the same time the rotation axis rotates on its axis having the radius of the gear in response to the revolution angle.

Abstract: An inching drive system for a mechanical press including a hydraulic motor and gear mechanism, that engages the flywheel of the press. The hydraulic motor is mounted for rectilinear movement toward and away from the flywheel for selective engagement therewith and includes a gear that meshes with teeth on the periphery of the flywheel. A separate hydraulic piston/cylinder arrangement moves the inching drive system into and out of engagement with the flywheel.

Abstract: A gear train locking mechanism for preventing the reciprocating slide of a mechanical power press from inadvertently moving during maintenance procedures and the like is disclosed. The gear train locking mechanism preferably includes an idler gear which is enmeshed with a drive gear of the power press and a movable arm assembly positioned for selectively engaging the idler gear to prevent its rotation. The engagement of the arm assembly and the idler gear effectively locks the gear train of the power press thereby preventing the slide of the power press from moving once the locking mechanism is activated.

Abstract: A die cushion device which is compact and simple construction to be constructed at low cost, comprises a pad arranged in a head of the press and supporting a lower die from below, and a cushion mechanism supporting the pad and providing a cushion force by controlling a servo motor. It is also possible to preliminarily assembly the pad and the cushion mechanism to use as a unit.

Abstract: Tube bending apparatus comprising a lower support carrying a mandrel having a bending groove providing a bend axis, and an upper support mounted on the lower support for rotation about the bend axis and carrying a forming member for urging a tube between the mandrel and forming member into the bending groove on rotation of the upper support relative to the lower support. The upper support is adapted to be rotated relative to the lower support through a drive shaft arrangement extending downwardly from the lower support and coupled with a drive unit having an output coupling coaxial with the drive shaft and transverse to the axis of the drive motor of the drive unit. A stand supports the bending apparatus and drive unit relative to an underlying support surface during operation of the bending apparatus.

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