The invention relates to a tappet drive for mechanical eccentric presses, wherein the stroke course is additionally variably adjustable with little effort by means of an additional drive (5), which can be acted on separately and which is articulated between the rocker (3) and the connecting rod (4).
B30B 1/26 - 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 cames, des excentriques ou des vilebrequins
2.
APPARATUS FOR TRANSPORTING AND CHANGING THE POSITIONS OF AT LEAST TWO WORKPIECES BETWEEN MACHINING STAGES OF A MACHINING SYSTEM
The invention relates to an apparatus (2) for transporting and changing the positions of at least two workpieces (W; W1 – W4) between and/or in machining stages (I, II) of a machining system (1), comprising a traverse member (9) that can be moved between the machining stages (I, II), a first beam (10) for a first holding apparatus (10a) for the first workpiece (W; W1), said first beam being movable with respect to the traverse member (9), and a second beam (11) for a second holding apparatus (11a) for the second workpiece (W; W2), said second beam being movable with respect to the traverse member (9). The second beam (11) can be moved by the first beam (10).
B21D 43/05 - Avancement du matériau en fonction du mouvement de la matrice ou de l'outil au moyen d'un élément mécanique coopérant avec le matériau spécialement adapté aux presses à étages multiples
The invention relates to a method for operating a hammer (1, 2), comprising at least one ram (3) that can be driven by at least one linear motor (9, 10) and a regulating unit (13).
B21J 7/30 - Entraînements pour marteauxMoyens de transmission appropriés pour marteaux à moteur, p. ex. pour marteaux-pilons actionnés par des électro-aimants
B30B 1/42 - 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 moyens magnétiques p. ex. électromagnétiques
The invention relates to a method for operating a forming machine or a forming line, wherein – the ram performs an accelerated falling motion in an upper stroke range, - the falling motion is affected, preferably braked, by a force generated by the ram counterweight, - the rotary drive is coupled to the shaft at a point in time of a defined falling speed synchronized with the speed of the rotary drive, wherein – the coupling process preferably takes place in the lower stroke range, especially shortly before forming, and wherein – shortly after forming in the lower stroke range, the rotary drive is decoupled again at a synchronized ram speed, and wherein – the dwell time of the ram in the lower stroke range is reduced relative to the dwell time in the upper stroke range by a factor of at least 1:2.
B30B 1/26 - 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 cames, des excentriques ou des vilebrequins
B30B 15/14 - Commande des presses actionnées mécaniquement
The invention relates to a press drive by means of direct drive modules, wherein a space-saving construction with low height for the press can be achieved.
B30B 1/26 - 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 cames, des excentriques ou des vilebrequins
The invention relates to a transporting apparatus (1) by means of which a non-deformed blank (11) supplied is transferred to a press (12), wherein the transporting apparatus (1) comprises a movable arm (3), or a movable crossmember, and an interchangeable tooling unit (4) which is arranged thereon and has suckers (6). The tooling unit (4) here comprises, in addition to the suckers (6), at least one stop (5, 5a) which can be extended into the plane of the blank (11), to the sides of the blank.
B21D 43/10 - Avancement du matériau en fonction du mouvement de la matrice ou de l'outil au moyen d'un élément mécanique coopérant avec le matériau au moyen de pinces ou de griffes
The present invention relates to an apparatus for the vibration-insulating fastening of units to a machine wall, wherein the vibration insulation takes place in the axial, radial and tangential directions by means of elastic elements which are operatively connected both to a unit-side flange and to a fastening flange, wherein in each case separate elastic spring elements (6, 7, 9, 10) are used for the axial vibration insulation, for the radial vibration insulation and for the tangential vibration insulation, and wherein sleeves (8), in conjunction with the screw prestress, are operatively connected in a positively locking manner in all directions, in particular in the rotational direction, both to the fastening flange (2) and to the unit-side flange (3), in order to achieve a sufficient torsional rigidity.
F16F 15/08 - Suppression des vibrations dans les systèmes non rotatifs, p. ex. dans des systèmes alternatifsSuppression des vibrations dans les systèmes rotatifs par l'utilisation d'organes ne se déplaçant pas avec le système rotatif utilisant des moyens élastiques avec ressorts en caoutchouc
H02K 5/24 - EnveloppesEnceintesSupports spécialement adaptés pour la réduction ou à la suppression des bruits ou vibrations
The invention relates to a drive device for applications in forming presses, comprising a plurality of electric drives with a common torque compensation.
The invention relates to a drive device for multi-ram transfer presses or press lines, wherein both high press forces and variable ram motions can be implemented by overlaying a conventional flywheel drive with a second drive.
F16H 3/72 - Transmissions à engrenages pour transmettre un mouvement rotatif à rapport de vitesse variable ou pour inverser le mouvement rotatif utilisant des engrenages à mouvement orbital avec entraînement secondaire, p. ex. un moteur régulateur, pour faire varier la vitesse d'une manière continue
The invention relates to a drive system of a multi-ram forming press having a plurality of rams (2.1-2.2), each independently controllable by at least one servomotor (7, 7.1-7.n), developed such that the energy consumption from the supply grid, the cycle-driven variations in load, and the feedback to the grid are minimized. The solution according to the invention is that the torques of the servomotors (7, 7.1-7.n) required for a high press force in the rams (2.1, 2.2) are fed into a linear converter (4, 10) via intermediate gearboxes (6) for the motion of the rams (2.1-2.n), wherein the intermediate gearboxes (6) and each associated servomotor (2.1-2.n) are located spatially offset to one another such that the separately controllable rams (2.1-2.n) have a small clearance relative to one another.
B30B 15/14 - Commande des presses actionnées mécaniquement
B30B 1/26 - 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 cames, des excentriques ou des vilebrequins
The invention relates to the embodiment of a tool for producing press-hardened sheet metal components, by forming a heated plate according to known press-hardening methods. According to the invention, a sheet metal plate is heated to a forming temperature, placed in the tool and formed. The formed workpieces are cooled by means of cooling channels that are arranged in a separation surface between carrier plates and the active parts. The invention also relates preferably to open cooling channels that are incorporated in the stamp, the matrix and/or the carrier plate. The (exchangeable) carrier plates are preferably made of an insulating material (duroplastic).
The invention relates to a method for the control and regulation of position deviations of tappets in servoelectric presses. The aim of the invention is especially to influence the position deviations of a tappet during the passage through the lower reversal point in such a way that the depth of immersion and the tilting position of the tappet can be controlled or regulated.
G05B 19/18 - Commande numérique [CN], c.-à-d. machines fonctionnant automatiquement, en particulier machines-outils, p. ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'un programme sous forme numérique
G05B 19/39 - Commande numérique [CN], c.-à-d. machines fonctionnant automatiquement, en particulier machines-outils, p. ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'un programme sous forme numérique caractérisée par systèmes de commande de positionnement ou de commande de contournage, p. ex. pour commander la position à partir d'un point programmé vers un autre point ou pour commander un mouvement le long d'un parcours continu programmé utilisant une combinaison de moyens couverts par au moins deux des groupes , et
G05B 19/404 - Commande numérique [CN], c.-à-d. machines fonctionnant automatiquement, en particulier machines-outils, p. ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'un programme sous forme numérique caractérisée par des dispositions de commande pour la compensation, p. ex. pour le jeu, le dépassement, le décalage d'outil, l'usure d'outil, la température, les erreurs de construction de la machine, la charge, l'inertie
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
13.
FORMING PRESS WITH A DRAWING CUSHION FUNCTION INTEGRATED INTO THE SLIDING TABLE
The invention relates to a forming press in which the drawing cushion functions (3) or parts thereof, such as, for example, the drives (5) and the displacement and force transmission means, are integrated into one or more sliding tables (1)
The invention relates to a die cushion device (50) for a forming press (51) for generating a blank retaining force (F53) between a bottom die (5) and a top die (3). Said die cushion device (50) comprises at least one hybrid drive unit (52) which acts upon at least one blank holder (4) of the bottom die (5) and is formed by at least one first drive unit and at least one second drive unit. The first drive unit and the second drive unit form a die cushion module (9) that encompasses a part, by means of which the blank holder (4) can be moved upward and downward by at least one of the drive units. A downward pressure that can be transmitted from the top die (3) to said part and causes a descending movement can be blocked or decelerated only by the first drive unit in order to prevent the second drive unit from being overloaded, the part being disconnectable from the second drive unit during the descending movement.
The invention relates to a press transfer in which the grip rails (10, 11) are held by means of joint rods (14, 19, 22) and driven by means of servomotors, the drive means and the movement transfer means being largely arranged in the region of the columns.
B21D 43/05 - Avancement du matériau en fonction du mouvement de la matrice ou de l'outil au moyen d'un élément mécanique coopérant avec le matériau spécialement adapté aux presses à étages multiples
B65G 25/02 - Transporteurs comportant un porte-charges ou un impulseur à mouvement cyclique, p. ex. à va-et-vient, désengagé de la charge pendant le mouvement de retour le porte-charges ou l'impulseur ayant des courses aller et retour différentes, p. ex. transporteurs à balancier
The invention relates to a method and a device for dampening cutting shock, in which the press ram (4) is supported on piston rods (25) of a hydraulic system which is in operative connection with the lower die part or the press table (10) during the cutting operation and which has a closed volume of oil.
A drive system of a forming press for driving the plunger with a crank mechanism controllable by a servomotor is refined in such a way that on the one hand a high pressure force is achievable with the available torques of servomotors and that on the other hand the technical complexity of the drive is reduced during the design of the drive with smultiple mechanically synchronized pressure points and also with pressure points that can each be controlled independently of one another. The concept of the method consists of transferring the torques of the servomotors that are required to achieve a high pressure force for the plunger by means of intermediate gearing, preferably with a double gear transmission, to the cam or crank mechanism, wherein the symmetrically configured drive arms of multipoint presses for the right and the left pressure points of two-point presses or the pressure point groups of four-point presses are optionally mechanically synchronized with one another in such a way that each of the intermediate gears of the first or of one of the first gear transmissions is effectively connected to the others.
B30B 1/26 - 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 cames, des excentriques ou des vilebrequins
B30B 15/10 - Freins spécialement adaptés aux presses
B30B 15/14 - Commande des presses actionnées mécaniquement
The invention relates to a device and a method for producing longitudinal grooves in cylindrical workpieces, especially for producing longitudinal grooves having an irregular profile. The forming process is carried out by means of segmental wheels (13) in a similar manner to that of a rolling method.
The invention relates to a method and a tool for producing cylindrical workpieces having longitudinal grooves, in which a drawing stage integrated in the tool precedes the actual rolling operation and in which the forming rollers (13) are mounted in two bearing shell halves (11,12).
The invention relates to a production line (1) comprising a number of workpiece machining devices (2, 3, 4) operating mechanically independently of one another, in particular presses, with workpiece transporting devices (5, 6, 7), which link the workpiece machining devices (2, 3, 4) for transporting the workpieces, and comprising a master computer (LR), which coordinates the workpiece machining devices (2, 3, 4) and/or the workpiece transporting devices (5, 6, 7) in their working sequences by an electronic transmission of setpoint values (13). Here the production line (1) comprises a main machining device (HBE), in particular a head press, and here the setpoint values (13) that are transmitted by the master computer (LR) can be generated by detecting at least one working state (AZ) of the main machining device (HBE).
The invention relates to a method for controlling and adjusting the movement of a tappet on servo-electric presses and to a device for carrying out said method. The method is characterised, in particular, in such a manner that the principle of the guiding wave controlled electronic curve disk control can be combined with the force control in order to control the movement of the tappet in such a manner that each movement phase of the tappet can be adjusted according to the operational mode by means of electronic position-curve disks and by means of force control or force limitation. The central part of the NC control device for the servomotor(s) which are used to drive the pressure point(s) of one or more tappets contains a virtual guiding wave which is controlled by a functional unit in order to determine the rotational speed of the guiding wave, a curve disk control device, according to an operational mode, a functional unit which is used to determine the torque limiting value. Depending on the control performance, a position control circuit, which comprises a sensor which measures resilience, is actively connected to at least one axis control device, which according to the operational mode, comprises a functional unit which is used to limit torque.
G05B 19/18 - Commande numérique [CN], c.-à-d. machines fonctionnant automatiquement, en particulier machines-outils, p. ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'un programme sous forme numérique
G05B 19/39 - Commande numérique [CN], c.-à-d. machines fonctionnant automatiquement, en particulier machines-outils, p. ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'un programme sous forme numérique caractérisée par systèmes de commande de positionnement ou de commande de contournage, p. ex. pour commander la position à partir d'un point programmé vers un autre point ou pour commander un mouvement le long d'un parcours continu programmé utilisant une combinaison de moyens couverts par au moins deux des groupes , et
22.
METHOD AND DEVICE FOR CONTROLLING AND ADJUSTING FORCES ON SERVO-ELECTRIC PRESSES
The invention relates to a method for controlling and adjusting forces on servo-electric presses comprising servoelectric tappet drives and/or die cushion drives and to a device for carrying out said method. The invention relates, in particular, to the use of the guiding wave functions for producing the part- and process-specific desired torque values and for producing the torque correction values based on various influence variables, together with temperature compensation of the torque factor in order to form the desired current value for the servo motors, for the translation-dependent torque calculation and/or a guiding wave-controlled functional unit for the acceleration-dependent first torque correction value and/or a guiding wave-controlled functional unit for the friction-dependent second torque correction value. In the devices, at least one current regulator, connected to a servo amplifier, receives the desired value of the control device which consists of a guiding wave-controlled desired value control device, guiding wave-controlled functional units and/or a functional unit for the temperature compensation of the torque factor and, according to control performance, a force control loop having a force or torque sensor.
G05B 19/18 - Commande numérique [CN], c.-à-d. machines fonctionnant automatiquement, en particulier machines-outils, p. ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'un programme sous forme numérique
G05B 19/404 - Commande numérique [CN], c.-à-d. machines fonctionnant automatiquement, en particulier machines-outils, p. ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'un programme sous forme numérique caractérisée par des dispositions de commande pour la compensation, p. ex. pour le jeu, le dépassement, le décalage d'outil, l'usure d'outil, la température, les erreurs de construction de la machine, la charge, l'inertie
23.
SUB-ASSEMBLY FOR SLOT CUTTING ROBOTS, COMPRISING A DIRECT DRIVE
The invention relates to a sub-assembly (2) for a slot cutting robot (1), in which the drive interacts directly with the sub-assembly (5) without a gear transmission, by means of a torque motor (3).
B23Q 7/02 - Agencements pour la manipulation des pièces, spécialement combinés aux machines-outils ou disposés dans ces machines ou spécialement conçus pour être utilisés en relation avec ces machines, p. ex. pour le transport, le chargement, le positionnement, le déchargement, le triage au moyen de tambours, de tables rotatives ou de plateaux
The concept of a blank loader for metal forming installations is proposed, in which loader it is possible using component transport devices, based on a modular system, to charge press installations having wide-ranging numbers of strokes per minute in a further region. This is made possible by means of a flexible system in which the component transport devices in each case operate over very short transport distances. To unstack the blanks (7) in the unstacking stations (2, 3) and to remove the separated blank (7) from a conveyor belt (17) for subsequent placement in the press (22), use can be made of at least one respective component transport device.
B21D 43/24 - Dispositifs pour retirer les tôles d'une pile
B21D 43/04 - Avancement du matériau en fonction du mouvement de la matrice ou de l'outil au moyen d'un élément mécanique coopérant avec le matériau
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
25.
METHOD FOR OPTIMISING THE TRANSPORT DISPLACEMENT OF WORKPIECES IN TRANSFER PRESSES
The invention relates to a method for optimising the transport displacement of workpieces in transfer presses. According to said method, conclusions relating to the freedom of motion, number of strokes and programme data for tool-specific machine control can be drawn by manipulating a displacement curve on a digital image of the transfer press.
B21D 43/05 - Avancement du matériau en fonction du mouvement de la matrice ou de l'outil au moyen d'un élément mécanique coopérant avec le matériau spécialement adapté aux presses à étages multiples
B30B 15/28 - Dispositions pour empêcher la déformation ou l'avarie des presses ou des parties de presses
G05B 19/4061 - Évitement des collisions ou des zones interdites
26.
METHOD AND DEVICE FOR CONTROLLING AND REGULATING SERVO-ELECTRIC DIE CUSHIONS
The invention relates to a method for controlling and regulating servo-electric die cushions (8, 9) on forming presses and to a device for carrying out said method. A stabile and precise operation in the phase of the force-regulated (15) drawing process and in all phases of the charge-regulated displacement (14, 16) of the cushion are possible due to the simple structure of the control and regulation and a reduced number of steps in the control and/or regulation operation. The conductive wave-regulated electronic curve disk regulation principle is combined with the force regulation in order to control and regulate the die cushion (8, 9), such that all displacement phases (14, 15, 16) of the die cushion, which are not in mechanical contact with the press slide, are controlled by electronic position-curve slides (12) during which the movements are in contact with the press slide due to force regulation with a path-dependent controlled force desired value profile.
B21D 24/10 - Dispositifs commandant ou manœuvrant les serre-flans indépendamment, ou en relation avec les matrices
G05B 19/18 - Commande numérique [CN], c.-à-d. machines fonctionnant automatiquement, en particulier machines-outils, p. ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'un programme sous forme numérique
27.
DIE CUSHION DEVICE HAVING A NUMERICALLY CONTROLLED DRIVE AND A HYDRAULIC PAD
A die cushion device (1) is proposed in which the pressure cheek (11) is moved and pressurized by means of electromotive drives (7), and in which a hydraulic pad (14) is arranged between a spindle nut (9) and the pressure cheek (11).
brevets