Abstract: The invention relates to a device for bending profile sections, comprising at least one bending form (36) centered on a bending axis, provided with a peripheral groove that is interrupted by a cutout, a stack of clamping jaw counterparts (42-45) each comprising a cavity for clamping the profile section and having a shape designed to fit into the cutout of each bending form (36) with the cavity extending in the continuity of the peripheral groove of said bending form, means (51-53) for the so-called vertical movement of the stack of clamping jaw counterparts (42-45) which means are designed to move said stack along an axis parallel to the bending axis, a stack of clamping jaws (55-58), comprising cavities that complement the cavities of the clamping jaw counterparts (42-45), and means (70, 72-74, 76, 80, 81) for the relative movement of the assembly made up of the bending form(s) (36), the stack of clamping jaw counterparts (42-45) and the stack of clamping jaws (55-58).

Abstract: The invention relates to a device for bending profile sections, comprising at least one bending form (36) centred on a bending axis, provided with a peripheral groove that is interrupted by a cutout, a stack of clamping jaw counterparts (42-45) each comprising a cavity for clamping the profile section and having a shape designed to fit into the cutout of each bending form (36) with the cavity extending in the continuity of the peripheral groove of said bending form, means (51-53) for the so-called vertical movement of the stack of clamping jaw counterparts (42-45) which means are designed to move said stack along an axis parallel to the bending axis, a stack of clamping jaws (55-58), comprising cavities that complement the cavities of the clamping jaw counterparts (42-45), and means (70, 72-74, 76, 80, 81) for the relative movement of the assembly made up of the bending form(s) (36), the stack of clamping jaw counterparts (42-45) and the stack of clamping jaws (55-58).

Abstract: A tube-bending machine including a bending arm that is provided with a jaw support that moves horizontally in a direction of a bending head, whereby said jaw support is integral with a clamping jaw assembly that comprises at least one jaw for bending a tube clockwise and at least one jaw for bending a tube counterclockwise, wherein the jaws are fixed to one another. A bending roller is fixed to the bending arm and comprises at least one jaw for bending the tube clockwise and at least one jaw for bending the tube counterclockwise, whereby said jaws of the bending roller are laterally offset relative to one another and on both sides of a vertical axis XX? of the bending head. A first strip support is also provided having at least one jaw to clamp the tube as it is being bent clockwise and a second strip support that includes at least one jaw to clamp the tube as it is being bent counterclockwise.

Abstract: A guide support for a tube bending machine comprising a base frame, a bending head, a bending arm, a bending roller, a locking jaw, sliding means for the displacement of the bending head in horizontal and vertical directions with respect to the base frame, at least two guides carried on an element and including recesses arranged in opposite directions with respect to the tube, guiding means for the element on the bending head, the guide element being guided in a horizontal translation motion on a plate securely fastened to the bending head, the guiding means being positioned adjacent a first surface of the element, and the at least two guides being arranged parallel to each other adjacent a second, opposite surface of the element. As a result of the guide support, either clockwise or counterclockwise bending can be effectuated on the same tube bending machine.

Abstract: An orbital machine for bending tubes includes a fixed base frame on which is displaced in translation a guiding support cooperating with a feed-off arm driven in rotation around a horizontal axis and that forms an integral unit with a bending head having two tightening semi-rollers that are driven first according to a direction opposite in direction from the axis of the tube in a plane perpendicular to that of the bending plane XX? of the tube, and secondly in rotation to achieve at least one bending on the tube, the base frame including a loading device allowing the tube to be bent to be held first in a horizontal position oriented in the direction of the bending head and secondly in a position that is fixed in rotation and in translation while the different bendings are achieved.

Abstract: A bending machine that includes a device that is used to drive and support a tube that is to be bent in relation to a bending head which is disposed at one end of a frame of the bending machine. The device includes a mandrel member that is solidly connected to an expandable member that is selectively applied against an inner wall of the tube to be bent and movement means that is used to align the mandrel member relative to a section of the tube to be bent during a bending step and that moves the expandable member to move the tube in translation and/or rotation between bending steps and when the expandable member is expanded to engage the inner wall of the tube.

Abstract: The invention relates to a guide support for a tube bending machine (1), comprising a baseframe (2), a bending head (3), a bending arm (4), a bending roller (9), a locking jaw (12) for the bending of a tube (5), and sliding means (15, 16) for the displacement of the bending head (3) in the horizontal and vertical directions with relation to the baseframe (2), comprising at least two guides (28, 29) the recesses of which are arranged in opposite directions with relation to the position of the tube (5) for the bending and guiding and displacement means (18, 19, 23, 24) for the guides (28, 29) of the bending head (3).

Abstract: The invention relates to a device that is used to drive and support a tube (10) that is to be bent in relation to a bending head (3) which is disposed at the end of the frame (2) of a bending machine (1). Said device comprises: a guide shaft (11) which is solidly connected to tightening means (12), said tightening means being applied against the inner wall of the tube (10) to be bent; and movement means (6) which are common to the shaft (11) and the tightening means (12).

Abstract: The invention concerns a tube bending machine comprising a bending arm (3) provided with a jaw support (7) which moves horizontally towards the bending head (2), said jaw support (7) being integral with a clamping jaw (8) which comprises at least a jaw (9, 11) for bending the tube (4) in a clockwise direction and at least jaw (10) for bending the tube (4) in an anti-clockwise direction, said jaws being mutually fixed, a bending roller (12) which is stationary on the bending arm (3) and which comprises at least a jaw (13, 15) for bending the tube (4) in a clockwise direction and at least a jaw (14) for bending the tube (4) in an anti-clockwise direction, said jaws (13, 14 and 15) being laterally offset relative to one another and on either side of the vertical axis (XX?) of the bending head (2), a first gib support (16) which comprises at least a jaw (18, 19) for clamped accompaniment of the tube (4) when it is being bent in a clockwise direction, and a second gib support (17) which comprises at least a jaw (2

Abstract: The orbital machine for bending tubes (2) according to the present invention comprises a fixed base frame (3) on which is displaced in translation a guiding support (8) cooperating with a feed-off arm (13) driven in rotation around a horizontal axis and that forms an integral unit with a bending head (4) comprising two tightening semi-rollers (23, 24) that are driven first according to a direction opposite in direction from the axis of the tube (2) in a plane perpendicular to that of the bending plane XX? of the tube (2), and secondly in rotation to achieve at least one bending on the tube (2), said base frame (3) comprising a loading device (5) allowing the tube to be bent (2) to be held first in a horizontal position oriented in the direction of the bending head (4) and secondly in a position that is fixed in rotation and in translation while the different bendings are achieved.

Abstract: A grasping device for changing bending tools on tube bending machines which includes a frame mounted over the bending machine. The grasping device includes a rotary head having independent movements in rotation, vertical motion and horizontal motion. A tool magazine is also movably carried by the portal frame independently of the rotary head.

Abstract: Tube bending machine including an elongate fixed frame secured at one of its ends to a bending head and to a bending arm pivoting about the bending head, a magazine device on the bending arm, the magazine device bearing pairs of clamping jaws with different impressions formed thereon, and being pivotable at the same time as the bending arm about the bending head so as to shape tubes. The magazine device is moveable both, rotationally about its own longitudinal axis and in directions lying in planes which are at least one of, perpendicular and parallel to a plane containing the longitudinal axis of the fixed frame. The magazine device includes a magazine, a jaw support sliding along the bending arm, a magazine holder secured to the jaw support, a first motor for moving the magazine vertically on the magazine holder, and a second motor for rotating the magazine about its own longitudinal axis.

Abstract: Process and apparatus for monitoring the backspringing of an elongated deformable elongated element while the element is bend by winding around a forming component. The element is clamped in a section located forward of the bend to be made. After the bend is made, the front section of the element remains clamped while the back section of the element is released. The backspringing value is determine by means of a sensor which makes a measurement on the back section of the element. The backspringing value is detected during a rotation of the element and the forming component around the axis of the bend by detecting when the back section reaches a predetermined position. This process makes it possible to continue bending of the element after detecting the backspringing value.

Abstract: A guide strip control device of pipe bending machine for controlling the transverse movement of a guide strip that is applied laterally against a pipe to be bent, which is held and moved longitudinally by a carriage. A first cylinder moves the guide strip over a considerable distance to disengage the pipe entirely from its gripping position and thus to allow the free passage of the carriage. A second cylinder moves the guide strip over a short distance so that the pipe is freed laterally but remains supported by a part of the guide strip.

Abstract: A machine for bending an elongated workpiece extending along a longitudinal axis has a housing and a holder on the housing for retaining the workpiece with its axis nondisplaceable relative to the housing and for advancing the workpiece in a feed direction parallel to the axis. A support defining a mandrel axis transverse to the longitudinal axis and spaced transversely therefrom is displaceable with the mandrel axis on the housing transverse to the longitudinal workpiece axis. A mandrel carried directly on the support is formed with an arcuate groove centered on the mandrel axis. This mandrel carries an inner jaw forming a continuation of the groove and is rotatable therewith on the support about the mandrel axis.