A method for profiling a profile body by cold forming a workpiece having a longitudinal axis and a cylindrical outer surface extended along the longitudinal axis. The workpiece carries out a rotation movement about the longitudinal axis and is machined by a tool in a multitude of successively executed reshaping engagements. The tool is held by a tool holder, to be rotatable about a tool axis. The tool holder is mounted in an orbiting body to be rotatable about a rotation axis, is driven into a rotation movement about its rotation axis, and is driven into an orbiting movement by the orbiting body. Rotation movement of the workpiece is synchronised with orbiting movement of the tool holder and rotation movement of the tool holder is synchronised with orbiting movement of the tool holder. The tool axis is different from the rotation axis.
The invention relates to a method for producing a profiled body having a profiling by cold-forming a workpiece (1), the workpiece having a longitudinal axis (Z) and an outer surface (11a), for example a cylindrical outer surface, which extends along the longitudinal axis (Z) in a working area (11), and to which the profiling (P) is applied. The workpiece (1) carries out a rotational movement (R1) about the longitudinal axis (Z) and is worked by a tool (2) in multiple forming actions, during each of which the tool (2) comes into contact with the working area (11). The tool (2) is held by a tool holder (5) and is rotatable about a tool axis (Q). The tool holder (5) - is rotatably mounted in a rotating member (8) about an axis of rotation (W) and is driven to perform a rotary movement (R5) about its axis of rotation (W), and - is driven by the rotating member (8) to perform a rotating movement (R8). The rotational movement (R1) of the workpiece (1) is synchronized with the rotating movement (R8) of the tool holder (5), and the rotary movement (R5) of the tool holder (5) is synchronized with the rotating movement (R8) of the tool holder (5). The tool axis (Q) is different from the axis of rotation (W). The invention also relates to a corresponding device.
A workpiece executes a rotation movement about a longitudinal axis and is machined by a tool in a multitude of reshaping engagements, in which an active region of the tool comes into contact with the machining region. The tool is held by a tool holder. The tool holder is mounted in an orbiting body so as to be rotatable about a rotation axis and is driven to carry out a rotating movement about the rotation axis, and is driven to carry out an orbiting movement by the orbiting body. Rotation movement of the workpiece is synchronised with the orbiting movement of the tool holder and the rotating movement of the first tool holder is synchronised with the orbiting movement of the tool holder.
In a method for manufacturing a hollow wheel which includes an internal toothing and an external toothing, wherein the internal toothing is a gear toothing, a workpiece is machined by way of a stamping tool. The workpiece has a tubular section with a longitudinal axis and a first stabilisation section for the shape stabilisation of the tubular section during the machining. The tubular section is inserted into a die having an internal die toothing. The workpiece is machined on the inner side by the stamping tool so as to simultaneously produce internal and external toothing by way of the workpiece executing a rotation movement with a temporally varying rotation speed and the stamping tool executing radially oscillating movements that are synchronised with the rotation movement.
The invention relates to a method and to a device for producing a shaped body with shaping by cold-forming a workpiece (1), the workpiece having a longitudinal axis (Z) and an outer surface (11a), for example a cylindrical outer surface, which extends along the longitudinal axis (Z) in a working area (11), and to which the shaping (P) is applied. The workpiece (1) carries out a rotational movement (R1) about the longitudinal axis (Z) and is worked by a tool (2) in multiple forming actions, during each of which an operative part (21) of the tool (2) comes into contact with the working area (11). The tool (2) is held by a tool holder (5), and the tool holder (5) is rotationally mounted in a rotating member (8) about an axis of rotation (W) and is driven to perform a rotary movement (R5) about its axis of rotation (W), and is driven by the rotating member (8) to perform a rotating movement (R8). The rotational movement (R1) of the workpiece (1) is synchronized with the rotating movement (R8) of the tool holder (5), and the rotary movement (R5) of the tool holder (5) is synchronized with the rotating movement (R8) of the tool holder (5).
B21H 1/20 - Fabrication d'articles en forme de solides de révolution de cylindres, p. ex. laminés transversalement laminés longitudinalement
B21D 53/28 - Fabrication d'autres objets particuliers de roues ou de pièces similaires à engrenages
B21H 5/02 - Fabrication de roues dentées de roues droites
B21H 7/18 - Fabrication d'articles non prévus dans les groupes , p. ex. outils d'agriculture, fourchettes, couteaux, cuillères d'épingles à rainureLaminage de rainures sur des pièces, p. ex. de rainures de graissage
B21K 1/30 - Fabrication d'éléments de machines de rouesFabrication d'éléments de machines de disques de roues dentées
6.
THIN-WALLED RING GEARS HAVING INNER AND OUTER TOOTHING, AND A DEVICE AND METHOD FOR PRODUCING SAME
The invention relates to a method for producing a ring gear which has inner toothing and outer toothing, the inner toothing being toothing for driving a pinion. In the method, a workpiece (1) is machined by a stamping tool (2). The workpiece (1) has a tubular section (3) with a longitudinal axis (Z) and a first stabilisation section (4) for stabilising the shape of the tubular section (3) during machining. The tubular section (3) is inserted into a die (5) which has inner die toothing (5z). The workpiece (1) is then machined on the inside by the stamping tool (2) to produce the inner toothing and the outer toothing simultaneously, in that the workpiece executes a rotational movement at a time-variable rotation speed, and the stamping tool (2) executes radially oscillating movements which are synchronised with said rotational movement. In the process, the stamping tool (2) shapes the tubular section (3) to produce the outer toothing while at the same time producing the inner toothing by repeated hammering of the tubular section (3) into the die toothing (5z).
A method for manufacturing a composite brake disc including a brake ring with at least one braking surface and a brake disc chamber having a tubular section and a base part that is connected to the tubular section and by way of which a reference plane is defined. The brake disc chamber and the brake ring are joined together, and a wobble angle between the at least one braking surface and the reference plane is reduced by reshaping the brake disc chamber.
F16D 65/12 - DisquesTambours pour freins à disques
B21H 1/02 - Fabrication d'articles en forme de solides de révolution de disquesFabrication d'articles en forme de solides de révolution de roues pleines
The invention relates to a method for producing a composite brake disk (10), comprising a brake ring (3), which has at least one braking surface (3f, 3f'), and a brake disk hub (1), which has a tubular section (1r) and a bottom part (1b), which is connected to the tubular section and by which a reference plane (E) is defined, wherein the brake disk hub (1) and the brake ring (3), which were previously separate parts, are joined and thereafter a wobble angle (α) between the at least one braking surface (3f, 3f') and the reference plane (E) is reduced by deforming the brake disk hub (1).
With the method for manufacturing a composite brake disc, which includes a brake disc chamber and a friction ring having an inner profiling, a brake disc chamber blank is introduced into the friction ring. The brake disc chamber blank is then formed into the inner profiling via at least one embossing tool. A composite brake disc permitting a good torque transmission between the friction ring and the brake disc chamber can be manufactured in a cold-forming manner in this way. The forming-in can take place in a hammering manner, in particular by successively implementing a plurality of embossing steps in the region of different profile gaps of the inner profiling. Axial stops can also be simultaneously produced on forming-in. The axial stops serve to stop the brake disc chamber and the friction ring (3) are prevented from axially sliding apart.
F16D 65/12 - DisquesTambours pour freins à disques
B21D 53/28 - Fabrication d'autres objets particuliers de roues ou de pièces similaires à engrenages
B21D 39/03 - Utilisation de procédés permettant d'assembler des objets ou des parties d'objets, p. ex. revêtement par des tôles, autrement que par placageDispositifs de mandrinage des tubes des tôles autrement que par pliage
B21D 22/14 - Repoussage des pièces de révolution par rotation
The invention relates to a method for producing a composite brake disc, which has a brake disc hub and a brake ring (3) having inner profiling (2), wherein a brake disc hub blank (1a) is introduced into the brake ring (3). Then at least one stamping tool (7) is used to mold the brake disc hub blank (1a) into the inner profiling (2). In this manner, a composite brake disc, which allows good torque transmission between the brake ring (3) and the brake disc hub, can be created in a cold-formed manner. The molding can take place in a hammering manner, in particular by carrying out a plurality of stamping steps one behind the other in the region of different profiled gaps in the inner profiling (2). Axial limits can also be produced at the same time during the molding, by means of which limits the brake disc hub and the brake ring (3) are prevented from being axially pushed apart.
A method for manufacturing a hollow wheel equipped with an internal gear toothing, wherein a work-piece includes a tubular section with a longitudinal axis, by which the term radial utilized in the following is defined. By N≧2 stamping tools, of which each one during the implementation of the method is brought into a working position, the tool for producing the gear toothing is processed on the inside of the tubular section, wherein the work-piece carries out a rotating movement with a rotation speed varying in time around the mentioned longitudinal axis and at least one stamping tool in the working position carries out radially oscillating movements, which are synchronized with the mentioned rotating movement. The at least one stamping tool in the working position processes the work-piece repeatedly.
The invention relates to a method for producing a ring gear (la) provided with an internally toothed section (6), wherein a workpiece (1) has a tubular section with a longitudinal axis (Z), which defines the term "radial" used below. By means of N ≥2 embossing dies (21, 22,...), each of which is moved to a working position during execution of the method, the workpiece is processed to produce the internally toothed section on the inside of the tubular section. The workpiece rotates about said longitudinal axis at a rotational speed that varies with time and the at least one embossing die (23) located in the working position each radially oscillates, said movement being synchronised with the rotational movement. The at least one embossing die located in the working position processes the workpiece (1) repeatedly.
A method is disclosed for cold-form profiling cylindrical, thin-walled hollow parts (1), comprising profiles (4) which extend in an essentially parallel manner in relation to the longitudinal axis (A) of the hollow part (1). At least one profiling tool (5) engages in a strike-like hammering manner with the outside of the hollow part (1) in a radial manner in relation to the longitudinal axis (A) o the hollow part (1). The profiling tool (5) engages, respectively, in an essentially vertical and oscillating manner on the surface of the hollow part (1). Then, the profiling tool (5) is displaced in an axial manner in relation to the hollow part (1) at a constant radial adjusting depth until the desired profile length is obtained.
B21C 37/20 - Fabrication de guides hélicoïdaux ou guides similaires dans ou sur les tubes fabriqués sans enlèvement de matière, p. ex. en étirant le matériau sur des mandrins, en le poussant à travers des matrices
B21J 7/16 - Machines à forger travaillant avec plusieurs marteaux disposés sur un porte-outil rotatif
B23P 15/10 - Fabrication d'objets déterminés par des opérations non couvertes par une seule autre sous-classe ou un groupe de la présente sous-classe de pistons
14.
DEVICE AND METHOD FOR GENERATING TOOTH-LIKE PROFILES IN WORKPIECES
The device for producing workpieces (1) having a defined profile with an angle of inclination ß, where | ß | ≥ 0°- comprises the following: a workpiece holder that can be rotated about the longitudinal axis (z) thereof and displaced along the longitudinal axis (z) for holding a workpiece (1), a drive for rotating the workpiece holder, said drive being configured to generate a periodically increasing and decreasing course of the rotational speed, and at least two forming tools (2a, 2a'), which can be continuously driven in a revolving manner on a common circular path (13a) about a rotational axis referred to as a roll head axis (W) for periodically acting upon the workpiece (1), wherein the roll head axis (W) can be oriented such that the longitudinal axis (z), together with the plane defined by the circular path (13a) of the forming tools, forms an angle that deviates by an angle α from the angle of inclination ß, wherein the following applies to angle α: 0° < α < 3.5°. The corresponding method for producing workpieces having defined profiles is also disclosed and has the advantage that high-precision workpieces can be generated with a high manufacturing speed.
B21H 5/02 - Fabrication de roues dentées de roues droites
B21H 7/18 - Fabrication d'articles non prévus dans les groupes , p. ex. outils d'agriculture, fourchettes, couteaux, cuillères d'épingles à rainureLaminage de rainures sur des pièces, p. ex. de rainures de graissage
A grooved profile for a form fitting hub-shaft connection in which a groove profile for a hub and a shaft include flanks which are structured and arranged as opposing flanks. The groove profile includes a groove profile height in at least one of the hub and the shaft, a wall thickness in at least one of the hub and the shaft smaller than the groove profile height, and at least one of the opposing flanks is one of curved and arc-shaped in cross section.
B25G 3/28 - Dispositifs de verrouillage ou de blocage comportant des coins, clavettes ou moyens similaires d'expansion
F16D 3/18 - Joints universels dans lesquels la flexibilité est réalisée par pivots ou organes de liaisons coulissants ou roulants les pièces d'accouplement comportant des dents d'engrènement coulissant
16.
LONGITUDINALLY PROFILED HOLLOW BODY WITH RECEIVING SLOTS
In the present hollow body (1) with a cylindrical casing surface which has, at least in some regions, an essentially axially parallel inner and/or outer profiling and at least one concentric receiving groove (2) arranged on the inner or outer surface, wherein the receiving groove (2) is formed by slots (3) arranged in the foot or head part of the profiling, and wherein each slot (3) is formed by two sections (4, 5), which are formed parallel to the groove direction, and by webs (6) which are offset radially outwards or inwards, the webs (6) have a passage or an opening (7; 8) at least in their central region. By means of the opening or the passage (7; 8), the compressive stresses caused by the operation to emboss the web (6), which operation is carried out in the plastic range, are eliminated.
The device for punching or embossing hollow cylindrical workpieces (1), having a punch (2) and a die (3) which can, so as to interact with one another in an axis of action (W), be adjusted radially towards the inner or outer surface of the workpiece (1) into predetermined positions with respect to the vertical axis (V) of the workpiece (1), has, in one embodiment, a common guide body (6) in which both guide means (5; 11), which are coupled to the punch (2) and die (3) respectively, are arranged so as to be movable parallel to one another and to the axis of action (W). Here, the guide means (5; 11) each have a preferably electronically controllable drive means (7; 12) which is connected in a form-fitting manner to the guide body (6) and is movable with respect to the guide body (6) in the event of activation. It is thereby possible to control the movements of the punch (2) and die (3) individually in a very precise and fast manner, and to permit, in a very flexible manner, practically any desired movement profile in order to carry out a predetermined punching or embossing machining process of the workpiece (1). By means of the form-fitting connection of the drive means (7; 12) to the guide body (6), a good transmission of force is permitted even for very high forces, as can occur during the punching or embossing process, even during very small stroke movements.
B21D 28/28 - Perforation, c.-à-d. découpage de trous dans des tubes ou autres corps creux
B30B 1/18 - Presses, utilisant un élément pilonnant, caractérisées par le mode d'entraînement du pilon, la pression étant transmise au pilon ou à la platine de presse directement ou uniquement par l'intermédiaire d'organes travaillant en simple poussée ou traction par des systèmes à vis
B26D 5/08 - Moyens pour actionner l'outil de coupe afin d'effectuer la coupe
18.
Method and device for making at least partly profiled tubes
A method and device are disclosed for producing tubes that are at least partially profiled on their interior and preferably on their exterior from a hollow cylindrical blank (3), using a mechanical cold forming method, wherein the end of the blank (3) that is not to be machined (3′) is fed to a clamping device (10). The blank (3) is then secured in the clamping device (10) and a mandrel (2) is subsequently inserted into the end of region (3) of the blank (3) that is to be machined. A lance (8) is guided in the mandrel so that it can be coaxially displaced in a longitudinal direction and the free end of the lance (8′) can be introduced into the clamping device (10). The tip (8′) of the lance (8) is then brought into a positive fit with the clamping device (10) in the axial direction of the blank (3) and the mandrel (2), together with the clamping device (10) and the blank (3) is guided axially through a fixed machining point (6). Radial exterior machining of the surface of the blank (3) along the section that is to be machined (3′) takes place at the machining point (6), to create the interior and exterior profiling of the blank (3). During the process, the mandrel (2) is preferably rotated about its axis in an intermittent manner.
A device and method for manufacture of workpieces having defined profiling. A device includes an axially moveable workpiece holder and at least one forming tool. There is a first drive structured and arranged to intermittently rotate the workpiece holder about a longitudinal axis of a workpiece held in the workpiece holder, and a second drive, separate from the first drive, structured and arranged to rotate the at least one forming tool to act periodically on the workpiece. The device also includes an electronic control operably connected to the first drive and the second drive, which controls intermittent rotational movement of the workpiece holder based upon the second drive. The at least one forming tool includes profiled wheels or rollers that are driven to continually rotate along a circular orbit that is oriented parallel or obliquely to the longitudinal axis of the workpiece.
B21B 15/00 - Systèmes permettant d'effectuer des opérations auxiliaires pour le travail des métaux, spécialement combinés, disposés ou adaptés pour être associés aux laminoirs
The invention relates to a method for cold-form profiling cylindrical, thin-walled hollow parts (1), comprising profiles (4) which extend in an essentially parallel manner in relation to the longitudinal axis (A) of the hollow part (1). At least one profiling tool (5) engages in a strike-like hammering manner with the outside of the hollow part (1) in a radial manner in relation to the longitudinal axis (A) of the hollow part (1). The profiling tool (5) engages, respectively, in an essentially vertical and oscillating manner on the surface of the hollow part (1). Then, the profiling tool (5) is displaced in an axial manner in relation to the hollow part (1) at a constant radial adjusting depth until the desired profile length is obtained.
brevets
