Abstract: A device is configured for opening a heat exchanger core from a U-shape to a V-shape. Such heat exchanger core has a plurality of parallel flat tubes, each having two ends; and two manifolds. Each of the flat tubes has two straight sections adjacent to the manifolds and an intermediate bent section. The device has two hinged frames, a respective clamp arrangement on each of the hinged frames for holding the two manifolds, and a trough shaped support for the intermediate portion. For opening the U-shaped heat exchanger core, the heat exchanger core is inserted into the device, and the two manifolds are secured with the clamp arrangements. The clamp arrangements are separated from one another by pivoting apart the two hinged frames, on which the clamps are mounted. Simultaneously, the intermediate bent section is pushed toward the trough adapted to provide a desired curvature to the intermediate section.

Abstract: A bending unit for bending a bend of a wave winding for a coil winding of an electric machine, having a first holding element for holding a first segment of a wire to be bent, a second holding element for holding a second segment of the wire to be bent and at least one bending mold for bending a transition region of the wire between the first segment and the second segment. The first and the second holding elements are in engagement with each other via at least one mechanical control cam to control a relative pivoting and a relative displacement of the first and the second holding element. Furthermore, a bending device having a plurality of such bending units, a wave winding production apparatus having a plurality of bending units which are synchronized via control cams, and a bending method and a wave winding production method are described.

Abstract: A cannula having multiple curves, devices for creating the cannula, and methods for using the cannula having multiple curves. One of the devices comprises two dies configured to mate together to transform a straight cannula into a double-curved cannula having two curves, and a base that is configured to slideably guide the two dies from respective initial positions to a mating position.

Abstract: A cannula having multiple curves, devices for creating the cannula, and methods for using the cannula having multiple curves. One of the devices comprises two dies configured to mate together to transform a straight cannula into a double-curved cannula having two curves, and a base that is configured to slideably guide the two dies from respective initial positions to a mating position.

Abstract: A tube bender includes a bending tool and a bending base connected to the bending tool. The bending tool has an arched member. The bending base has a first plate, a second plate, a first block, and a second block. The first plate is separated from the second plate to form a bending space therebetween. The first and the second blocks are received in the bending space and pivoted on both the first plate and the second plate. A tube is adapted to be rested on the first and the second blocks while the arched member is able to be moved toward the tube to bend the tube. The first block and the second block are rotated automatically according to a curvature of the tube being bent.

Abstract: A method and a device for bending a metal hollow thick walled member to a predetermined angle without deviation of the bending center position and without separation from a half die when presser die moves up. With a pair of guide plates (GP1 and GP2) turnably attached to a center pin CP kept horizontal and the axis center of the center pin intersecting with the axis center of the metal hollow thick walled member PM, the member PM is mounted on a half die (82a). When die holding members (80a and 80b) fixedly connected to the above guide plates and kept horizontal are inclined and separated from each other as the center pin lowers, the member PM is bent to the predetermined angle and held on the half die (82b). When the center pin that can be moved vertically by a guide member moves down to a predetermined position, a contact portion (96b) contacts the inclined surface of a stopper (92b) to allow a base plate (16) to receive a pressing force from an upper die via the stopper.

Abstract: A pipe bender includes first and second handles pivotably secured together wherein the second handle includes first and second rotatable pipe receiving grooves at both ends of a forward U; a support member threadedly fastened between a forward bifurcation of the first handle, the support member comprising a spring depressible detent on the bottom, and a plurality of markings on the top; and a slide member comprising a plurality of parallel arcuate pipe receiving channels of different arcuate perimeters on a lower surface, a central U-shaped trough on the top for receiving a lower portion of the support member, retaining holes on the bottom of the U-shaped trough, each retaining hole being aligned with one pipe receiving channel and one retaining hole adapted to lockingly receive the detent for positioning. The slide member is slidably retained by the support member.

Abstract: A handheld tool for straightening coiled tubing in a continuous manner. The tool is configured to straighten coiled tubing that has undergone plastifying deformation, for example, during winding about a coiled tubing reel. The tool is of enhanced mobility and may be employed to provide a straightened portion of coiled tubing without resorting to intermittent reverse kinking or corrugating of the coiled tubing. Rather, the substantially continuous character of the straightened portion of coiled tubing is well suited for stably and reliably accommodating a downhole tool for use within a well during hydrocarbon recovery applications.

Abstract: A bending press for making tubing from a substantially planar and longitudinally extending metal sheet has a support extending transversely generally parallel to the sheet vertically offset from the sheet, and a bender at one of the edges of the sheet and slidable transversely generally parallel to the sheet on the support. The bender has a pair of bending tools, a tie rod extending transversely in the direction adjacent the pair of tools, and an actuator braced transversely in the direction between the tie rod and the tools and extensible in the direction to tension the rod and press the tools against opposite faces of the sheets at the one edge to deform the one edge. A clamp is engageable between the bender and the support for releasably locking the bender to the support at any of a plurality of positions offset transversely therealong generally parallel to the sheet.

Abstract: A pipe bending shoe including a support frame, a pipe channel defined by a first bending frame connected with the support frame and by a second bending frame connected with the support frame, and a plurality of flexible straps spaced along the pipe channel and spanning the pipe channel transversely between the first bending frame and the second bending frame in order to provide a transversely segmented pipe sling, wherein the pipe sling maintains a constant convex longitudinal sling profile during bending of a pipe using the pipe bending shoe.

Abstract: An angle adjuster for a golf club shaft includes a pressing part that can advance and retreat towards and away from a space between two pressing force receiving parts. The pressing force receiving parts include grooves configured to receive a golf club shaft. When the pressing part is advanced against the golf club shaft, a bending force is applied to the shaft at a bending location on the shaft that lies between the pressing force receiving parts. This occurs while the shaft is received in, the receiving grooves of the pressing force receiving parts.

Abstract: A press brake tool for bending a workpiece includes a punch having a punch tip, a press brake die and a die holder fixing the die thereto. The press brake die includes a pair of rotary members and at least one elastic member. The press brake die further defines an elongated lateral groove facing the punch tip and at least one longitudinal through hole communicating with the lateral groove. The pair of rotary members is spaced from each other and rotatably received in the elongated lateral groove. The at least one elastic member is received in the at least one longitudinal through hole and abutting the pair of rotary members.

Abstract: A bending machine has a base and a stage having a movable ram to press a metal plate on the base with a shaping process. The base has an opening corresponding to the ram to allow the ram to pass through the opening. The stage has a pivotal end mounted pivotally with a side of the base, and a detachable end detachably mounted with the other side of the base and adjacent to the opening of the base. When a shaped metal plate tightly clamps the ram, the detachable end of the stage can be detached from the base, the stage can be pivoted to release the ram from the metal plate. Thus, to disassemble the bending machine is unnecessary, and the bending machine is convenient in use and operation and is simple in structure.

Abstract: A bottom tool/bending die for use in sheet metal forming. The bottom tool includes a pair of movable dies that provide substantially continuous support of a work piece as it is being deformed. Each die includes an upper surface configured to contact the work piece and having an inner and an outer edge. As the die moves in the tool, the inner edge of the upper surface is closer to a center of rotation of the die than the outer edge. In some embodiments, the upper surfaces of the dies are shaped so that a fixed separation is maintained between the inner edges of the dies as they rotate. In at least one embodiment, sector gears are used to control the motion of the dies.

Abstract: A bottom tool/bending die for use in sheet metal forming. The bottom tool includes a pair of movable dies that provide substantially continuous support of a work piece as it is being deformed. Each die includes an upper surface configured to contact the work piece and having an inner and an outer edge. As the die moves in the tool, the inner edge of the upper surface is closer to a center of rotation of the die than the outer edge. In some embodiments, the upper surfaces of the dies are shaped so that a fixed separation is maintained between the inner edges of the dies as they rotate. In at least one embodiment, sector gears are used to control the motion of the dies.

Abstract: Apparatus (1) for forming thin-walled material from an essentially flat piece of material (2) into a sleeve-like body (20), with two forming dies (3, 4), at least one of which is configured to be able to move into position against the other one and at least one of the forming dies (3, 4) is pivoted, while the clearance between the two forming dies (3, 4) when they are open is so large that the flat piece of material (2) can be placed between the two forming dies.

Abstract: A movable die base (2) is moved toward a stationary die base (1). A pressing force is applied by a bending punch (21) disposed on the movable die base to a bending target portion of a pipe (A) which is placed on a die (11) provided on the stationary die base and which has inserted therein a core metal (17). At the time of this bending work, both ends of the pipe are restricted by holding them with restriction pads (22). When the pressing force is applied by the bending punch, the restriction pads are displaced to follow the pressing of the bending punch, whereby restricted state on both ends of the pipe is constantly maintained.

Abstract: An improved pipe bending apparatus comprising a plurality of belts supporting the minor radius of the bend. The belts cannot support stresses sufficient to allow concentrated stress to cause the pipe walls to collapse. The belts are affixed to a framework that forces the belts into the sides of the pipe, thereby providing support to maintain ovality of the pipe cross-section.

Abstract: A tubing bending machine comprising a bending assembly further comprising a hydraulic cylinder which reciprocates a plurality of bands set apart by guide discs, with each band being held in place by a forming die having two threaded ends which are secured to the hydraulic cylinder by means of nuts. The bending assembly is mounted vertically in a frame, on which two tubing guides are also mounted by means of bearings. The tubing guides have alignment guides corresponding to each band on the bending assembly and are oriented such that when a piece of tubing inserted in the machine is resting on the tubing guide, the piece of tubing will be aligned with a corresponding band and forming die.

Abstract: An apparatus and a method for manufacturing a thick-walled bent pipe with a simple structure at low production cost, which has durability and can manufacture an elbow material for piping with higher size accuracy, are provided. For this purpose, the manufacturing apparatus is a manufacturing apparatus comprising a presser die (12) and a lower die (20), in which the lower die (20) includes a pair of bottom dies (21, 22) having meshing means (30), and a pair of the bottom dies (21, 22) are allowed to rotate opposite to each other by the meshing means (30), in connection with a descent of the presser die.

Abstract: In a detecting device main body 29 of a bending angle detecting device, a pin shaft 35 having a first engagement member 39 is normally biased upward by a first spring 41 in an approximately center position of a groove portion of a die D. In the detecting device main body 29, a rotor supporting member 47 having second engagement members 61 and 63 is normally biased by two second elastic bodies 49 having weaker biasing force smaller than that of the first spring 41. Two rotors 51 are positioned and borne to both sides of a groove widthwise direction of the die D at the upper portion of the rotor supporting member 47. A forward end of the pin shaft 35 is stopped in a lower position than the upper surface of the die by rotatively link members 43 which are engaged with the first engagement member 39 and second engagement members 61 and 63, and the two rotors 51 are positioned below the upper surface of the die.

Abstract: A vertical compression bending machine that uses linear bearings to guide the ram and cushions assemblies. The inventive machine also employs an adjustment mechanism to align the wing dies relative to one another.

Abstract: A method and apparatus for manufacturing a thick-walled bent pipe capable of manufacturing an elbow material for piping with higher size accuracy with use of a thick-walled pipe material are provided.

Abstract: There are not used scores of plane lower molds different in size and shape. In stead, there are used one or a few pairs of lower bar molds provided with a push spring, etc. as a rotary control. By controlling the rotation of the lower bar molds, the metal plate is pressed thereby to the metal contact surfaces of lower bar molds. The pressure of the upper mold is properly conveyed to the metal plate. According as the bending angle of the metal plate for which it is used, it is neatly bent and there are formed no scratches thereon. Thus, improvements are made in the bending preciseness and quality of the metal plate.