The invention relates to a method and a forming system for producing a gear part through a rotational forming. According to the invention provision is made in that in a preforming step a rotationally symmetrical workpiece is set into rotation about its center axis and, at least through axial feeding and passing of at least one forming roller, a stretch-flow forming is carried out, wherein a cylindrical circumferential wall with a defined target wall thickness is shaped which is smaller than a basic wall thickness of the workpiece. Subsequently, in a finish-forming step the preformed workpiece is clamped onto an inner mandrel with external toothing and set into rotation and at least one profiled toothed roller is fed radially, by which the cylindrical circumferential wall, whilst substantially maintaining the target wall thickness, is formed into the external toothing of the inner mandrel, wherein a drum-shaped toothed region with a splined toothing is shaped.
A method and a device for spin forming includes a workpiece set in rotation with a spindle and at least one outer roller is positioned at an outer side of the workpiece. With material thinning, an axially extending lateral region of the workpiece is shaped. At least one inner roller is positioned at an inner side of the workpiece with an inner support, which is displaceable axially and radially relative to the axis of rotation independently of the outer roller. The inner support with the inner roller and an outer support with the outer roller are displaced individually with a CNC control unit, forming at the lateral region a defined wall thickness profile with different wall thicknesses between the at least one outer roller and the at least one inner roller.
The invention relates to a device and a method for forming, in which at least one spindle is driven in a rotating manner by means of a rotary drive, a workpiece is received on the spindle by means of a clamping means and clamped on the spindle and at least one forming roller is fed axially and/or radially relative to the workpiece in order to carry out a spinning or flow-forming process. In accordance with the invention provision is made for the spindle and the clamping means to be combined to a changing unit which is adjustable transversely to the axis of rotation, wherein the changing unit is adjusted between a forming position and a set-up position.
B21D 22/14 - Repoussage des pièces de révolution par rotation
B21D 37/04 - Montage mobile ou interchangeable des outils
B21D 43/00 - Dispositifs d'alimentation, de positionnement ou de stockage combinés à des appareils pour travailler ou traiter les tôles, les tubes ou les profilés, disposés dans ces appareils ou spécialement adaptés pour être utilisés en association avec ces appareilsAssociation de dispositifs de coupe avec ces appareils
The invention relates to a forming machine for forming a tubular workpiece, comprising a machine base body, a first main spindle unit, to which a first spinning mandrel is attached and can be driven to rotate about a main spindle axis, and a second main spindle unit, on which a second spinning mandrel is attached and can be driven to rotate about the main spindle axis, wherein the second main spindle unit is axially opposite the first main spindle unit and the two main spindle units can be axially adjusted between a forming position, in which the workpiece is axially clamped between the first main spindle unit and the second main spindle unit, and a set-up position, in which the first main spindle unit is axially spaced apart from the second main spindle unit for introducing and removing the workpiece. The forming machine further comprises at least one first forming roller unit, which can be moved to the clamped and rotationally driven workpiece to carry out forming, and at least one second forming roller unit, which can be moved to the clamped and rotationally driven workpiece to carry out forming.
The invention relates to a method and a device for incremental forming of a metal workpiece, having at least one spindle, on which the workpiece is clamped, and at least one spindle drive, with which the at least one spindle is set in rotation with the workpiece and/or at least one forming roller is set in rotation relative to the workpiece, wherein the at least one forming roller is advanced radially and/or axially relative to the rotating workpiece by way of at least one actuator. According to the invention, a computer-based controller is provided which records multiple machine parameters via sensors, which parameters comprise at least a rotation speed of the spindle, a position of the forming roller and forming forces and/or an advancement speed of the forming roller, and process parameters and/or workpiece parameters are also recorded by the controller, and the controller creates at least one data set in which the machine parameters are assigned to the process and/or workpiece parameters.
The invention relates to a method for shaping a workpiece having a drum-type peripheral wall, on the inner face of which an inner profile featuring longitudinal ribs is formed by feeding at least one profiling roll to said inner face. According to the invention, at least one rotatably mounted profiling roll is fed to an inner face of the peripheral wall of the workpiece, and said at least one profiling roll rotates relative to the inner face of the peripheral wall such that the inner profile is formed in the inner face in a non-cutting manner.
The invention relates to a method and a device for the incremental forming of a metallic workpiece, comprising at least one spindle, on which the workpiece is clamped, and at least one spindle drive, with which the at least one spindle with the workpiece and/or at least one forming roller is set in rotation in relation to the workpiece, wherein the at least one forming roller is infed radially and/or axially in relation to the rotating workpiece by means of at least one actuating drive. The invention provides that there is a computer-based controller that uses sensors to detect multiple machine parameters, which comprise at least one rotational speed of the spindle, a position of the forming roller and forming forces and/or an infeed rate of the forming roller, that process parameters and/or workpiece parameters are also detected by the controller and that the controller creates at least one data record, in which the machine parameters are assigned to the process and/or workpiece parameters.
The invention relates to a forming device and method, wherein at least one spindle is rotationally driven by a rotary drive, a workpiece is received on the spindle by means of a clamping device and clamped on the spindle, and at least one forming roller is applied axially and/or radially relative to the workpiece in order to carry out a compression rolling or metal spinning process. According to the invention, the spindle and the clamping device are combined to form an exchange unit, which can be moved transversely to the axis of rotation, wherein the exchange unit is moved between a forming position and a set-up position.
B21D 22/14 - Repoussage des pièces de révolution par rotation
B21D 37/04 - Montage mobile ou interchangeable des outils
B21D 43/00 - Dispositifs d'alimentation, de positionnement ou de stockage combinés à des appareils pour travailler ou traiter les tôles, les tubes ou les profilés, disposés dans ces appareils ou spécialement adaptés pour être utilisés en association avec ces appareilsAssociation de dispositifs de coupe avec ces appareils
The invention relates to a method and a device for flow forming, wherein a workpiece (5) is set in rotation with the aid of a spindle (12) and at least one outer roller (20) is moved against an outer side of the workpiece (5). An axially extending outer region of the workpiece (5) is formed by thinning the material. According to the invention, at least one inner roller (30) is moved against an inner side of the workpiece (5) with the aid of an inner support (40), which is axially and radially movable relative to the axis of rotation, independently of the outer roller (20). The inner support (40) with the inner roller (30) and an outer support with the outer roller (20) are moved independently of one another by means of a CNC control process, and a defined wall thickness profile with different wall thicknesses is formed on the outer region between the at least one outer roller (20) and the at least one inner roller (30).
The invention relates to a flow forming machine and a forming method for producing a wheel (50) with a rim (60) from a workpiece (5), comprising a pressure mandrel (20), the exterior of which is designed to form the rim (60); a mating mandrel (12), wherein the workpiece (5) is clamped against the pressure mandrel (20) or the mating mandrel (12); a rotational drive; and at least one pressure roller (40) which can be advanced towards the workpiece (5) in order to form the rim (60). According to the invention, the pressure mandrel (20) has a sleeve-shaped circumferential element (30) which can be moved axially during the forming process, and the pressure mandrel (20) has a main support (22) on which the circumferential element (30) is mounted in an axially movable manner. A front element (24) is arranged on a free front face of the main support (22), and a radial hub (52) or a drop center (64) can be axially clamped between the front element (24) of the pressure mandrel (20) and the mating mandrel (12). A controller is provided by means of which the at least one pressure roller (40) and the circumferential element (30) of the pressure mandrel (20) can be moved axially in a matching manner relative to the workpiece (5) while forming the rim (60).
The invention relates to a forming machine for the spinning/flow forming of a workpiece, having a machine bed, a headstock, a main spindle rotatably mounted on the headstock, having a flow forming mandrel, which is provided to receive the workpiece, a support, which carries at least one machining tool, and which is axially displaceable relative to the main spindle in a longitudinal direction of the machine bed. Furthermore a main spindle drive for driving the main spindle in rotation and a feed drive for displacing the support are provided. The main spindle drive has at least two drive motors, each having a drive pinion. The main spindle has a driving gear, which can be driven by the drive pinions of the drive motors.
The invention relates to a method and a device for producing a shaped part from a circular blank, wherein the circular blank is rotated and at least one compression roller is radially applied to an outer edge of the circular blank, said compression roller having a circumferential shaping groove. The outer edge of the circular blank is compressed to form a thickened region, which is shaped according to the shaping groove of the compression roller to form a thickened edge contour. With the radial compression, at least two axial shaped rollers are applied to an outer region of the circular blank, which cooperate when shaping the edge contour. According to the invention, at least in a starting phase of the radial compression, the two axial shaped rollers are applied to the thickened region at an axial shaping distance to one another, which distance is smaller than an axial width of the shaping groove of the compression roller, wherein the thickened region is axially compressed back.
B21D 22/16 - Repoussage des pièces de révolution par rotation sur des mandrins ou gabarits de formage
B21D 53/28 - Fabrication d'autres objets particuliers de roues ou de pièces similaires à engrenages
B21H 1/04 - Fabrication d'articles en forme de solides de révolution de disquesFabrication d'articles en forme de solides de révolution de roues pleines avec bourrelet, p. ex. roues des chemins de fer
13.
METHOD AND DEVICE FOR SHAPING A WORKPIECE HAVING A DRUM-TYPE PERIPHERAL WALL
The invention relates to a method for shaping a workpiece (1) having a drum-type peripheral wall (2), on the inner face (3) of which an inner profile (5) featuring longitudinal ribs (6) is formed by feeding at least one profiling roll (12) to said inner face (3). According to the invention, at least one rotatably mounted profiling roll (12) is fed to an inner face (3) of the peripheral wall (2) of the workpiece (1), and said at least one profiling roll (12) rotates relative to the inner face (3) of the peripheral wall (2) such that the inner profile (5) is formed in the inner face (3) in a non-cutting manner.
The invention relates to a device for shaping a tubular workpiece (10), comprising a machine bed (82), a headstock (84) which is mounted on the machine bed (82), a press mandrel (18) which is mounted on the headstock (84) for receiving the tubular workpiece (10), a chuck (94) which is mounted on the headstock (84) for clamping a first axial end (12) of the tubular workpiece (10), and at least one shaping roller (40) for shaping the tubular workpiece (10) arranged around the press mandrel (18). According to the invention, a tailstock (60) is provided which is equipped with a receiving area (61) for receiving and holding the second axial end (14) of the tubular workpiece (10).
The invention relates to a forming machine for pressing/pressure rolling a workpiece (5) comprising a machine base (10), a headstock (20), a main spindle (22) rotatably mounted on the headstock (20) and having a pressure rolling mandrel (24) provided for accommodating the workpiece (5), and a support (30) which supports at least one processing tool (26) and which is axially moveable relative to the main spindle (22) in a longitudinal direction of the machine base (10). In addition, a main spindle drive (23) for rotational driving of the main spindle (22) and a feed drive for moving the support (30) are provided. The main spindle drive (23) has at least two drive motors (23a, 23b) which each have a drive pinion. The main spindle (22) has a drive gear which can be driven by the drive pinions of the drive motors (23a, 23b).
The invention relates to a method for reshaping a workpiece comprising a central axis, a radial inner region, and a radial outer region, in which the radial inner region of said workpiece is reshaped by means of a punch and a die by a drawing operation in the axial direction with formation of an axial shaped section. Provision is made for the workpiece, the die, and the punch to be rotated about the central axis during the reshaping process by a drawing operation and for the radial outer region of said workpiece to be subjected, during reshaping by a drawing operation of the rotating workpiece, to the action of at least one shaping roller such that a flow of material in the direction of the radial inner region of said workpiece is caused or aided. The invention further relates to a device for reshaping a workpiece.
The invention relates to a method for shaping a workpiece (100) with a central axis, a radially inner region, and a radially outer region. The radially inner region of the workpiece is shaped by a punch (30) and a die (20) by means of a drawing process in an axial direction, whereby a shaped axial portion is formed. The workpiece (100), the die (20), and the punch (30) are set into rotation about the central axis (12) while the workpiece is being shaped by means of the drawing process, and the radially outer region (104) of the workpiece (100) is acted upon by means of at least one shaping roller (40) as the workpiece (100) rotates while being shaped by means of the drawing process, whereby a material flow in the direction of the radially inner region (102) of the workpiece (100) is produced or aided. The invention further relates to a device for shaping a workpiece.
The invention relates to a process for forming a pipe portion, in which process a base having an opening and having an inwardly projecting collar is formed. It is provided that the pipe portion is made to rotate, that the pipe portion is drawn in by means of a forming roller, with the base being formed by the drawing-in process, that an inwardly projecting material thickening is formed integrally in the base and that an opening is made in the base in the region of the inwardly projecting material thickening, wherein the inwardly projecting collar is formed by at least part of the inwardly projecting material thickening. Furthermore, the invention relates to an apparatus for forming a workpiece.
The invention relates to a process for forming a pipe portion, in which process a base having an opening and having an inwardly projecting collar is formed. It is provided that the pipe portion is made to rotate, that the pipe portion is drawn in by means of a forming roller, with the base being formed by the drawing-in process, that an inwardly projecting material thickening is formed integrally in the base and that an opening is made in the base in the region of the inwardly projecting material thickening, wherein the inwardly projecting collar is formed by at least part of the inwardly projecting material thickening. Furthermore, the invention relates to an apparatus for forming a workpiece.
A method for stretch-flow forming, in which a tubular workpiece is arranged around a spinning mandrel, set into rotation and formed by advancing at least one forming roller. A wall thickness of the tubular workpiece is reduced and the tubular workpiece is lengthened, as spinning mandrel use is made of a universal spinning mandrel with different external diameters in the axial direction for producing cylindrical and/or conical and/or cambered hollow parts of different design. during forming the forming roller and the spinning mandrel are moved relatively in the axial direction with respect to the workpiece, and, for the purpose of designing varying diameters and/or wall thicknesses of the workpiece, the forming roller is moved relatively in the axial direction with respect to the spinning mandrel.
B21D 22/16 - Repoussage des pièces de révolution par rotation sur des mandrins ou gabarits de formage
B23G 9/00 - Travail mécanique des vis, têtes de boulons ou écrous en conjonction avec le filetage, p. ex. rainurage des têtes ou des tiges de vis, ébarbage des têtes ou des tiges de visFinition, p. ex. polissage, de n'importe quelle sorte de filets
B21C 37/26 - Fabrication de tubes à ailettes ou à nervures par fixation sur les tubes d'un matériau en bandes ou de présentation analogue de tubes à nervures hélicoïdales
The invention relates to a method for ironing roller spinning, in which method a tubular workpiece (10) is arranged around a rolling mandrel (20), is set in rotation and is formed by setting at least one forming roller (40) against it. During the forming operation, the rolling mandrel is moved relative to the forming operation in the axial direction with respect to the workpiece. Furthermore, the invention relates to an apparatus (80) for ironing roller spinning a tubular workpiece with a rolling mandrel which can be arranged in the tubular workpiece, at least one forming roller for being set against and forming the workpiece, and a rotary drive for rotationally driving the workpiece. In the apparatus, the rolling mandrel is mounted such that it can be moved relative to the workpiece in the axial direction during the forming operation.
