Abstract: A coil (1) for a rotary electric machine is annularly formed by twelve coil members (10), each coil member (10) is configured of four coil elements (10A) to (10D), the coil elements (10A) to (10D) integrally include a plurality of sets of coil element structures each set of coil element structures including a pair of base portions (11), and four arm portions (12) and two curl portions (13), and the plurality of sets of coil element structures are annularly configured.

Abstract: The present disclosure provides a true triaxial tester with adjustable loading stiffness and a test method, relating to the technical field of rock mechanics. The tester includes a first principal stress variable stiffness loading apparatus, a second principal stress variable stiffness loading apparatus, a third principal stress loading apparatus, a monitoring system, and a control system. The monitoring system includes a stiffness sensor, a pressure sensor, and a displacement sensor. Loading stiffness in a first principal stress direction and a second principal stress direction is adjustable. The tester has the following advantages: it has fixed loading stiffness, can complete stiffness loading of one side being free and five sides being variable, and is easy to operate.

Abstract: A manufacturing method for a rotating electric machine, in which the distal end portions of a plurality of coil ends, which are projected from slots of a stator core of a rotating electric machine and which are arranged in the radial direction of the stator core to form a plurality of layers, are held, and the coil ends are twisted and bent while moving the distal end portions in the circumferential direction. Neutral lines for bending the coil ends are different for each layer, and the neutral lines for the bending are positioned on farther outer sides for coil ends of farther outer layers.

Abstract: The invention relates to a device for bending pipes, in particular coated pipes, in a preferred manner insulated pipes and/or pipes that are coated with PU foam/PUR rigid foam, for pipelines, said device having a basic body which can be positioned in the pipe and on which a running gear unit is provided for movement in the pipe and having at least three contact elements for producing a contact with an inside wall of the pipe for introducing a bending force, wherein at least two contact elements are provided on one side of the basic body on the ends of the basic body, and at least one contact element is arranged on the opposite side of the basic body, and wherein at least one of the contact elements is provided so as to be movable in relation to the basic body in the direction of the inside wall of the pipe by means of a force-introducing element. In addition the invention relates to a method for bending such pipes.

Abstract: A machine for bending a thread-like material such as a pipe, a section iron, a bar, or the like, briefly a “pipe”, provided with a system for simultaneously loading a pipe to be bent and unloading another, already bent pipe, comprising a vertical hinge provided with a bending head provided with a motor for driving the bending head into rotation about an axis orthogonal to the hinge.

Abstract: An apparatus for bending metal beams and methods of using the same are provided herein.

Abstract: A bending device for rod-shaped workpieces having a bending head with a mandrel rotatable about a rotation axis, a cutting device for cutting the respective workpiece in a cutting plane, and a feed and straightening device for feeding the workpieces to the bending head, the cutting device capable of being moved along a travel path in the feed direction of the workpieces, with the bending head capable of being shifted between an operating position in which it is moved towards the workpiece and an inactive end position remote therefrom, the bending head, in order to assume its operating position, can be moved into the travel path of the cutting device, whereas, when assuming its inactive end position, it is positioned outside the travel path of the cutting device, and, when the bending head is situated in its inactive end position, the cutting device can be moved downstream on its travel path at least partly over the area of the operating position of the bending head.

Abstract: Provided are a bending apparatus and a bending method. According to an aspect of the present invention, there is provided a bending apparatus including a guide portion configured to guide a movement and a bending of a flexible substrate so that the flexible substrate is bent and moved, a first fastening portion configured to fix one side of the flexible substrate that is bent along the guide portion, a second fastening portion configured to fix an other side of the flexible substrate, and a driving portion configured to move at least one of the first fastening portion and the second fastening portion.

Abstract: A robotic bending apparatus for bending archwires and other types of elongate, bendable medical devices into a desired configuration includes a first gripping tool and a moveable gripping tool. The first gripping tool can be either fixed with respect to a base or table for the robot or positioned at the end of robot am. The moveable gripping tool is mounted to the end of a moveable robot arm having a proximal portion also mounted to the base. The robot preferably comprises a six axis bending robot, in which the distal end of the moveable arm can move relative to the fixed gripping tool about three translational axes and three rotational axes. The gripping tools preferably incorporate force sensors which are used to determine overbends needed to get the desired final shape of the archwire. The robot may also include a resistive heating system in which current flows through the wire while the wire is held in a bent condition to heat the wire and thereby retain the bent shape of the wire.

Abstract: A bending apparatus for performing accurate non-destructive bending of material includes first and second jigs that are rotatable about a rotary shaft and that bend the material attached to the jigs as they rotate relative to each other. The first jig includes a bending section that is arranged offset from a rotary center to a rotating side of the material and that has a partially cylindrical surface with a radius of curvature corresponding to the radius of curvature of an inner peripheral surface of the material. Each of the first and second jigs has a suppressing section for suppressing displacement of the material, and a bending center of the material is arranged such that the material is not displaced relative to the first and second jigs when the material is bent.

Abstract: A tooling system comprises a plurality of elements (24) arranged in an array, each element being supported on a cross rail (22) and being moveable relative to the other elements in the array. Each element terminates in a threaded support post (25) extending from a first end of the element, and is associated with a corresponding internally threaded aperture in the cross rail upon which the element is supported. The tooling system further comprises an adjusting component in the form of a fork (46) which is driveable in rotation and engageable with an element of the array to drive the element in rotation, upon rotation of the fork.

Abstract: An elbow rotator apparatus for rotating an integrally formed section of an elbow workpiece includes a pair of gripping arms which are selectively positionable in a first position displaced from the elbow workpiece, and a second position in which the gripping arms are in contact with the integral section of the elbow workpiece. A rotary actuator is operatively connected to the gripping arms to selectively rotate the gripping arms by a predetermined amount when the gripping arms are in the second position.

Abstract: The present invention relates to a twisting apparatus for an ultrafine rectangular bar, comprising: a chuck; chuck driving means; at least two vise clamps each of the vise clamps having a pressing surface capable of contacting to a side surface of the ultrafine rectangular bar; and vise clamp driving means. The chuck driving means and the vise clamp driving means are so controlled that, after the proximal end of the ultrafine rectangular bar is held by the chuck where the vise clamps are placed closely to the ultrafine rectangular bar, the chuck disengages the ultrafine rectangular bar when the vise clamps contact to the ultrafine rectangular bar and then engages again the ultrafine rectangular bar, in a ease where the vise clamps are approached closely to the ultrafine rectangular bar held by the chuck to twist the ultrafine rectangular bar upon isolating, as rotated correlatively, the chuck and the vise clamps from each other.

Abstract: A vehicle clamp assembly has an upper end releasably clampable to a vehicle frame member, and a lower end releasably attachable to a support frame. The assembly is rotatable about a first axis substantially parallel to the support frame and is also rotatable about a second axis substantially perpendicular to both the support frame and the first axis. The assembly's base can thus be levelled with respect to the support frame before the assembly is attached to the support frame. This allows the assembly to be clamped onto a vehicle frame member, irrespective of the frame member's orientation relative to the support frame.

Abstract: In a method and apparatus (1,31) for forming a three-dimensional object and in particular to a method and apparatus (1,31) for forming a three-dimensional beam, it is desirable to form three-dimensional beams (5) having complex forms by using an efficient forming process for the beams which may be incorporated into existing high volume production techniques. The apparatus (1,31) for forming three-dimensional beams (5) comprises a support device and an actuation device. Support members (2, 32, 41, 51, 61) spaced about the longitudinal axis of the support device locally define an opening (4, 35, 43, 53, 63) for supporting a section of the beam (5). The position of adjacent openings (4, 35, 43, 53, 63) relative to one another defines the overall form of the beam (5) and the actuation device defines the position of each opening (4, 35, 43, 53, 63).

Abstract: According to one embodiment of the invention, a system for bending a structural member includes a base, a pair of pivot plates rotationally coupled to the base, an actuator coupled between the pair of pivot plates, and a plurality of adjustable supports adjustably coupled to the pair of pivot plates. The adjustable supports are adjustable in a transverse direction, and are operable to bend the structural member through a rotation of the pivot plates.

Abstract: A system and method for forming a three-dimensional wireform for heart valves from a two-dimensional starting shape. The wireform has multiple arcuate cusps and oppositely directed commissure tips therebetween, the cusps and commissure tips being oriented generally in a tube about an axis. The two-dimensional wire has three cusps and two commissure tips, with two free ends having bent segments. The wireforming system and process holds the commissure tips, or one commissure tip and one bent segment, and forms the cusp therebetween. The wire is held by two axially-parallel mandrels and cooperating clamps which axially rotate and move toward one another. A forming surface on each mandrel bends one half of the cusp, the forming surfaces being mirror images of one another. The forming surface has a complex curvature specifically designed to shape a particular size of wireform into a desired final three-dimensional shape.

Abstract: An apparatus for straightening a U-shaped leaf spring wherein the spring includes a curved section having a concave side and a convex side and wherein the spring has a pair of elongated legs spaced-apart relationship with each other from the curved section of the spring and the curved section of the spring has a radius of curvature adjacent a side of the legs facing away from each other, the apparatus comprising a plurality of pivotal block members which simultaneously rotate counter to one another, each of the blocks having a channel disposed thereon adapted to receive one of the leaf spring legs therein and the channel having an outer wall facing toward the other block outer wall which extends away from the curved section of the leaf spring to a respective free end such that the combined lengths of the outer walls on both blocks are substantially the same length of the convex side of the curved section of the leaf spring; each block channel having a respective inner wall facing away from the inner wall of t

Abstract: A bending mechanism for flexible waveguide uses a combination of an elongate arm (1), two short bracket arms (3 & 7) and a gear train (5, 11, 13 & 9) linking the bracket arms to bend a flexible waveguide (24) over a range of positions. The bend is formed to the shape of a circular arc the radius of which varies with the position. Each short bracket arm is pivotally connected (15 & 17) to a respective end of the elongate arm and to a respective one of the waveguide's two end flanges (23 & 25). Each bracket arm contains a gear that rotates with the respective bracket arm about the bracket arm's pivot; and an even number of gears interlinks those gears whereby pivotal movement of one of the flanges in a clockwise direction produces an effective relative pivotal movement of the other flange.

Abstract: A universal gripping device for gripping and holding L-shaped and T-shaped workpieces comprises a main support on which are mounted a pair of opposed gripping members and an actuator for moving one of the gripping members toward and away from the other one for gripping and releasing a workpiece. A secondary support is rotatably coupled to the main support and has second and third pairs of gripping members and associated actuators mounted thereon. The three pairs of gripping members collectively define a generally T-shaped workpiece-receiving space for receiving T-shaped and L-shaped workpieces. By rotating the secondary support relative to the main support, the angle between the gripping members can be changed for accommodating workpieces of various shapes, and the movable gripping members permit different workpiece thicknesses to be accommodated.

Abstract: Disclosed is a preferred embodiment of straightening apparatus (100) featuring a pair of adjacent rotary block members (8) and (8') having channels (30) and (30') respectively disposed therein for receiving spaced-apart legs (6) and (6') of a heated leaf springs folded into a substantially flat "U" shaped configuration as block members (8) and (8') are caused to rotate in unison in opposite directions, inner walls (12) and (12') of channels (30) and (30') respectively engage and urge legs (6) and (6') away from each other whilst outer walls (10) and (10') of channels (30) and (30') respectively are operative to engage and provide support for substantially the entire length of a convex side (26) of a curved section (24) of the folded leg spring effective to prevent warpage thereof during the straightening process.

Abstract: Apparatus and a method for forming an elongated workpiece are provided. In a first embodiment, a press has a ram and movable upper platen to which is secured a first die. Upper guide members are provided on the upper platen for movement of slide members on each responsive to movement of the platen. Lower guide elements, which cooperate in a telescoping manner with upper guide members, are secured to a lower platen. The first die cooperates with a pair of rotatable second die members which are provided with each being rotatable responsive to movement of a slide member. In a preferred embodiment, the upper guide members secured to the platens are in relative sliding contact and links connect the slide members with the rotatable second dies. In a preferred embodiment, the elongated metal workpiece may be formed by bending under the influence of the forces applied to the first die and second die members through the upper platen by the press ram.

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: A universal positioning and support structure for tools usable by a machine for bending elongated elements such as tubes or profiled sections, includes at least one base body and a support platform for the tools. The support platform is movably mounted on the base body. The platform is capable of rotating circumferentially and for contemporaneously being displaced radially with respect to a pivot fixed to the base body.

Abstract: The guide rib 20 is erected on the inner side of the bent busbar insertion groove 18. A strip of conductor piece D' cut to a specific length and held at its ends by the chucks 16 is positioned directly above the busbar insertion groove 18, after which the chucks 16 are lowered to bring the conductor piece D' close to the guide rib 20. The chucks 16 are then moved in arc to bend the conductor piece D' in the same shape as the guide rib 20. The formed conductor is then inserted into the busbar insertion groove 18.

Abstract: Apparatus for forming a form wound stator coil from a bobbin has means for clamping the straight portions of the bobbin to define the straight portions of the each leg of the coil. It also has means for bending the bobbin to predetermined radii to form arms extending from the straight portions of each leg of the coil to each nose of the coil. Means are provided for bending each arm to a predetermined radius. Means are further provided for bending the nose portions to a predetermined angle. Means for providing a drop to the arm portions of the coil relative to the stator bore are also provided. Means for forming the leads of the bobbin to a predetermined configuration are also provided. Hydraulic means for powering the apparatus and a system for controlling the hydraulic means are also disclosed.

Abstract: Apparatus for forming a form wound stator coil from a bobbin has means for clamping the straight portions of the bobbin to define the straight portions of the each leg of the coil. It also has means for bending the bobbin to predetermined radii to form arms extending from the straight portions of each leg of the coil to each nose of the coil. Means are provided for bending each arm to a predetermined radius. Means are further provided for bending the nose portions to a predetermined angle. Means for providing a drop to the arm portions of the coil relative to the stator bore are also provided. Means for forming the leads of the bobbin to a predetermined configuration are also provided. Hydraulic means for powering the apparatus and a system for controlling the hydraulic means are also disclosed.

Abstract: An apparatus for the bending of a flexible conduit having first and second ends includes first and second assemblies which are fixed for relative rotation with the first and second ends. An axis of rotation passes through the first and second assemblies. The apparatus further includes a driven gear fixed for rotation with the first assembly. The driven gear is adapted to cooperate with a drive gear to rotate the first assembly with respect to the second assembly. The first assembly includes a first extendable portion which attaches directly to the first end. Similarly, the second assembly includes a second extendable portion which attaches directly to the second end. The first and second assemblies function to vary the distance between the axis of rotation and the first and second ends as the first assembly is rotated with respect to the second assembly.

Abstract: A tool mountable on a helicopter blade for selectively bending the trailing edge trim tab of the blade about a selected axis along the span of the trim tab, and including a device to counterbalance the weight of the trim tab bending mechanism so that the true degree of bending of the trim tab can be determined at any time during the bending operation. The tool also includes apparatus for simultaneously calibrating the counterbalance device and the mechanism used to measure the degree to which the tab has been bent, prior to commencing the bending operation.

Abstract: A coil shaper for coils of rotating electric machines such as motors and generators spreads so-called diamond coils from a coil loop blank with grippers for the corners of the coil and a powered mechanism moving the grippers apart from an initial position for insertion of the elongated loop blank to a final position in which the coil is shaped and the grippers rotated so as to angle the straight, parallel, slot-fitting sections about their lengthwise directions, and comprising also endwise disposed grippers for controlling the knuckles of the coil. The shaper effects automatically the proper shaping of the overhangs of the coil, dispensing with the malletting operations conventionally required in coil making.

Abstract: Apparatus for converting tubular blanks of ductile material into substantially L-shaped bodies which can constitute parts of spacer frames for use between the panes of multiple-pane windows has a clamping unit which can engage a first portion of a blank so as to locate the blank in a predetermined position in which an intermediate portion of the blank is located between the first portion and a second portion. At such time, one side of the intermediate portion is adjacent a roller and the other side of the intermediate portion is adjacent an anvil. A moving unit is then caused to bend the intermediate portion about the anvil while the distance between the roller and the anvil decreases so that those walls of the intermediate portion which are adjacent the roller and the anvil move nearer to each other during transformation of the intermediate portion into an elbow of the thus obtained L-shaped blank.

Abstract: Successive hollow polygonal bodies which are made of a ductile material and each of which has three corners and two straight open-ended terminal portions are converted into rectangular spacer frames for use between the panes of multiple pane windows by orienting the polygonal bodies in such a way that the terminal portions extend downwardly from their open ends, by admitting metered quantities of a flowable desiccant into selected parts of the two terminal portions, by converting one of the terminal portions into an L-shaped frame member with a section which is in register with the other terminal portion, and by inserting sealing plugs into the open ends of the two terminal portions.

Abstract: An improved coil forming machine for spreading a simple coil and forming its end turns into a shape to fit into the slots of a rotor or stator. A carriage is mounted to a support frame for free floating lateral movement. The carriage has two sections which are movable laterally closer together and further apart. Each section carries one of the two clamps at each end of the coil forming machine. A hydraulic cylinder moves the sections apart during the spreading operation and the free floating carriage goes to its equilibrium position at which the forces applied to opposite end turns are always equal.

Abstract: Elbows in tubular blanks which are filled with a desiccant are formed by clamping a blank at one side of the intended locus of the elbow, by bending the blank at the other side of the intended locus of the elbow relative to the clamped portion of the blank, by propping the blank in the region of the inner wall of the developing elbow, and by plasticizing the material of the blank in the region of the outer wall of the developing elbow so that the material of such outer wall is less likely to exhibit cracks and/or to burst as a result of bending of the blank.

Abstract: A shaper for the coils of large rotary electric machines bends an elongate loop coil blank so that the inwardly-directed faces (15) of the straight parallel sections are turned downwardly so that the ends (14) of the coil "kink" downwardly, thereby making possible a downwardly directed mallet blow for initiating kinking of the ends 14 in the correct direction.

Abstract: Solar parabolic reflecting troughs are formed from long strips of sheet metal by applying equal bending moments to each long edge of the strip to draw the metal into a parabolic shape. While maintaining the metal in parabolic form, the trough is stress relieved by heating.

Abstract: A method and apparatus for bending beams by which a beam is subjected to pure moment bending in a critically oriented plane to avoid twist and to maintain single plane bending in a beam of arbitrary cross section. As disclosed, a pair of bending heads laterally engage a beam at longitudinally spaced points. Force actuator means connected directly between the heads is energized to rotate one of the heads relative to the other to produce a bending moment in a work area in the beam between the heads. The actuator means is arranged to produce a force couple on the heads which avoids transverse loading of the beam and resultant twist and which is adapted to selectively orient the plane of the applied couple relative to the desired bending plane to maintain single plane bending in beams of nonsymmetric cross section.