Holding device (1) for holding at least one cable (K), comprising the holding device (1):
a holder housing (10) with a cable-receiving opening (14) for receiving at least one cable (K),
a connection device (20) which, in a coupling state, couples the holding device (1) to an application component (A), the connection device (20) having a coupling piece (60) made of magnetic material which can be coupled to an application component surface section (A1) of the application component (A), so that, in the coupling state, the holder housing (10) can be rotated relative to the application component (A) at least about the second reference axis (B2),
and a combination of such a holding device (1) and an application component (A), electrical connection device (C) and an actuator system (S) with an actuator (S1) and with a holding device (1).
H02G 3/32 - Installations de câbles ou de lignes sur les murs, les sols ou les plafonds utilisant des colliers de fixation
F16L 3/127 - Supports pour tuyaux, pour câbles ou pour conduits de protection, p. ex. potences, pattes de fixation, attaches, brides, colliers entourant pratiquement le tuyau, le câble ou le conduit de protection comportant un élément entourant pratiquement le tuyau, le câble ou le conduit de protection et faisant un angle avec la surface de fixation
The invention relates to an adjusting device (1), comprising a spindle drive (2), an adjusting element (3) which can be positioned by the spindle drive (2), and an optical measuring system (4), wherein the spindle drive (2) has a motor (22), a hollow threaded spindle (24) with a threaded spindle axis (A1), and a spindle nut (26) which is in threaded engagement with the threaded spindle (24), wherein the motor (22) directly or indirectly drives either the threaded spindle (24) or the spindle nut (26), and the actuating element (3) is connected either to the spindle nut (26) or to the threaded spindle (24), and the optical measuring system (4) comprises at least one first transmitting means (44) which emits a light beam (42) and at least one first receiving means (46) which interacts with the light beam (42), wherein the at least one first transmitting means (44) or at least parts thereof are/is arranged in a stationary manner on or outside the adjusting device (1) and the at least one first receiving means (46) or at least parts thereof are/is arranged movably on the actuating element (3), or the at least one first receiving means (46) or at least parts thereof are/is arranged in a stationary manner on or outside the adjusting device (1) and the at least one first transmitting means (44) or at least parts thereof are/is arranged movably on the actuating element (3), and the light beam (42) of the at least one first transmitting means (44) runs along the threaded spindle axis (A1) in the interior of the hollow threaded spindle (24) and concentrically with respect to the latter, and a direct positional determination of the adjusting element (3) is made possible on account of the interaction of the light beam (42) with the at least one first receiving means (46).
The present invention relates to a method for producing at least one stator (1) for an electromechanical inertia drive, wherein the stator (1) has at least one electromechanical actuator (2) and a stator frame (3) for receiving the actuator (2). To lower the production costs for the stator, the stator frame (3) comprises a plurality of components (4, 5.1, 5.2, 6) which are produced in a cutting process from at least one planar semifinished product and which are stacked to form the stator frame (3).
The invention relates to a planar positioning apparatus for positioning loads on a predetermined plane, said positioning apparatus comprising:—a base plate having a flat surface that extends parallel to and at a specific distance from the predefined positioning plane, thus defining same;—four identical linear guides/drives which are collinearly fastened to or on the base plate in pairs parallel to the two other linear guides/drives; and—a parallel kinematic unit which comprises a load platform, is disposed between the parallel linear guides/drives, and is rotationally connected to the rotors of all linear drives via one passive joint each.
B23Q 3/18 - Dispositifs permettant de maintenir, supporter ou positionner les pièces ou les outils, ces dispositifs pouvant normalement être démontés de la machine pour positionner uniquement
B23Q 3/02 - Dispositifs permettant de maintenir, supporter ou positionner les pièces ou les outils, ces dispositifs pouvant normalement être démontés de la machine destinés à être montés sur une table, un chariot porte-outil ou des organes analogues
B23Q 17/00 - Agencements sur les machines-outils pour indiquer ou mesurer
A 6-axis positioning system, comprising a base, a movable unit and six variable-length actuators, one end of each actuator being connected to the base and the other end of each actuator being connected to the movable unit. At least one additional variable-length component is provided, one end of which is connected to the base and the other end of which is connected to the movable unit. The 6-axis positioning system can be releasably locked at least in certain positions of the movable unit by means of this additional component. The additional component has a releasable locking brake, and the variable-length component is designed such that its length can be varied passively by means of the movement of the six driven actuators.
Drive device (1) for driving a spindle (90) with a spindle axis A90, which is accommodated in a spindle space (39) extending along a longitudinal axis of the spindle space, the drive device (2) comprising a first actuator device (10, 210) and a second actuator device (20, 220) which can be reversibly varied when actuated along a first actuator axis L1 or a second actuator axis L2, an actuating device (40, 140, 240), a frame device (30, 130, 230), the arrangement comprising the frame device (30, 130, 230) and the actuating device (40, 140, 240) comprising at least two contact surface sections (51, 52, 151, 152, 254, 264) provided for contact with two different contact areas (91, 92) of the spindle (90) to rotate the spindle (90), wherein the frame device (30, 130, 230) is designed as a structurally continuous component which completely surrounds the spindle space (39), the first actuator device (10) and the second actuator device (20), drive motor and method for driving a spindle (90).
H02N 2/14 - Circuits d'entraînementDispositions pour la commande
H02N 2/10 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement rotatif, p. ex. moteurs rotatifs
7.
POSITIONING DEVICE AND METHOD FOR OPERATING SUCH A POSITIONING DEVICE
The invention relates to a positioning device (1) comprising a positioning unit (2) having at least one piezoelectric actuator (4), a drive element (5) to be coupled with an element (6) to be positioned, and a controller (3). The positioning device has a defect analysis device (16) for detecting defects in the positioning unit (2), wherein the actuator (4) or actuators, in addition to functioning as a drive for the drive element (5), functions or function as a generator (12) or a receiver (13) of ultrasonic sound waves, and the defect analysis device (16) comprises a measurement signal generator (22) for generating a sinusoidal electrical voltage for exciting the or a generator (12) and a resonance analyser (24) for analysing an electrical signal generated by the or a receiver (13). The invention also relates to a method for operating such a positioning device in order to detect defects in the positioning unit (2).
H10N 30/00 - Dispositifs piézo-électriques ou électrostrictifs
G01H 11/08 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores par détection des changements dans les propriétés électriques ou magnétiques par des moyens électriques utilisant des dispositifs piézo-électriques
H10N 30/02 - Formation d'enceintes ou d'enveloppes
The present invention relates to a drive system and a control method for a piezoelectric motor of such a drive system. A transmitting inductance is connected in an electrically conductive manner to at least two switching elements. A control device is suitable for converting a periodic drive signal into a pulse width modulation (PWM) signal and forwarding it to the transmitting inductance by switching the at least two switching elements. A receiving inductance and a capacitive piezoelectric actuator, which form a low-pass filter, are situated inside a chamber. At least one wall of the chamber is in the form of a fixed dielectric barrier, and the transmitting inductance is suitable for inductively transmitting the PWM signal to the receiving inductance through the fixed dielectric barrier. The provided system and method make it possible to wirelessly transmit signals into a sealed environment such as a vacuum environment.
H02N 2/02 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires
H02N 2/06 - Circuits d'entraînementDispositions pour la commande
A drive system as disclosed includes an input shaft, an output shaft, and at least two coupling elements respectively coupled to the input shaft and the output shaft. In order to absorb assembly and manufacturing tolerances with respect to the shafts, the coupling elements and their attachment to the shafts and thereby prevent jamming of the drive system, at least one coupling element has an elastically deformable section, the elastically deformable section having a different material or a different cross-section than an adjacent section of the coupling element.
F16H 21/12 - Transmissions ne comportant essentiellement que des tringles ou des leviers, avec ou sans glissières tout mouvement étant dans un seul plan ou dans des plans parallèles pour transmettre un mouvement rotatif
A preloading device (10, 100, 300) with a first end part (11, 111), with a second end part (12, 112) and with at least one spring device (F, F1, F2), which connects a second end part (12, 112) to the first end part (11, 111) along a spring device reference axis (RA, RA1, RA2), wherein the at least one spring device (F, F1, F2) is formed of at least one meander section (M1), each of which extends along the spring device reference axis (RA, RA1, RA2), and a drive device (1) with a preloading device (10, 100, 300).
F16F 1/02 - Ressorts en acier ou faits d'un autre matériau ayant une faible friction intérieureRessorts enroulés, de torsion, à lame, en forme de coupelles, à corps annulaire ou similaire, le matériau de ressort ne jouant pas de rôle
The present invention relates to a piezoelectric rotary- and resonance drive and to a method for actuating a piezoelectric rotary- and resonance drive. The drive comprises a rotor (11) and at least one drive unit (1) comprising an assembly of a plurality of piezoelectric actuators (2, 3.1, 3.2) and a frictional element (4) which is designed to come into contact with the rotor (11), wherein the assembly of the piezoelectric actuators (2, 3.1, 3.2) and the frictional element (4) are coupled in such a way that, upon actuation of the piezoelectric actuators (2, 3.1, 3.2), the frictional element (4) can perform both a contact movement towards the rotor (11) or away therefrom, in order to establish or terminate contact with the rotor (11), and a drive movement along the rotor (11) in order to drive the rotor. The aim of the invention is cost-effective and simple production. To achieve this aim, each of the piezoelectric actuators (2, 3.1, 3.2) of the assembly is a linear actuator.
H02N 2/00 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction
H02N 2/02 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires
H02N 2/10 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement rotatif, p. ex. moteurs rotatifs
12.
DRIVE DEVICE AND METHOD FOR OPERATING A DRIVE DEVICE OF THIS TYPE
The invention relates to a drive device (1) comprising at least one drive unit (2) with at least one first and one second drive element (20), and a runner (3) which is to be moved in a drive direction by way of the drive unit (2), wherein each drive element (20) comprises a base element (210) and at least three actuators (200) which are arranged on the base element (210) so as to lie next to one another in an arrangement direction which lies transversely with respect to the drive direction, and wherein at least one of the actuators (200) of a drive element (20) has a shear section (220) for carrying out a shear movement transversely with respect to the arrangement direction of the actuators (200) and along the drive direction of the runner (3), and at least one of the actuators (200) of a drive element (20) has a stroke section (240) for carrying out a stroke movement transversely with respect to the arrangement direction of the actuators (200) and transversely with respect to the drive direction of the runner (3), and wherein the at least two drive units (2) are arranged so as to lie behind one another along the drive direction of the runner (3). In addition, the invention relates to a method for operating a drive device (1) of this type.
H02N 2/02 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires
13.
ADJUSTMENT DEVICE, ADJUSTMENT SYSTEM AND COMPUTER PROGRAM PRODUCT
Adjustment device, comprising: a base component (B1), an adjustment body (10), at least one flexure hinge (21), by means of which the adjustment body (10) is rotatably hinged on the base component (B1) about a flexure hinge rotation axis (D1), and at least one drive device (C), which is coupled to the base component (B1) and to an adjustment body connection device (AV), in order to move the same relative to each other, wherein the drive device (C) comprises an actor (60) which comprises an electrical coil (71) with a coil axis (AS) extending along the flexure hinge rotation axis (D1) and a compensation component (80) of a magnetizable or magnetized material and at least one permanent magnet segment (MS), which is disposed beside the actor (60) movably beside the same, wherein the magnet field lines in the interior of the permanent magnet segment (MS) extend along the coil axis (AS), and an adjustment system, an computer program product.
H01F 7/18 - Circuits en vue d'obtenir des caractéristiques de fonctionnement souhaitées, p. ex. pour un fonctionnement lent, pour l'excitation successive des enroulements, pour l'excitation à grande vitesse des enroulements
The invention relates to an ultrasonic motor comprising: at least one piezoelectric ultrasonic actuator (1) having at least one generator (12) for generating a planar acoustic travelling wave; an element (2) to be driven having an external thread; and a drive element (6) having an inner peripheral surface (7), that is provided with a thread (8), and an outer peripheral surface, the drive element being inserted into the ultrasonic actuator (1) so that an inner peripheral surface of said actuator surrounds the outer peripheral surface of the drive element (6), the element (2) to be driven and the drive element (6) being in threaded engagement, and it being possible to transmit the planar acoustic travelling wave from the ultrasonic actuator (1) to the drive element (6), thereby rotating the element (2) to be driven. The ultrasonic actuator (1) has the shape of a polygonal plate (4) having two large main surfaces (19) and at least three smaller lateral surfaces (18) that connect the two main surfaces (19) to one another, and said actuator comprises at least one active generator (13) for generating a planar acoustic standing wave, the oscillation velocity maximum of which is in the region of the inner peripheral surface of the ultrasonic actuator (1).
H02N 2/16 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement rotatif, p. ex. moteurs rotatifs utilisant des ondes progressives
The invention relates to a piezoelectric inertia drive (1) comprising: a drive device (2) having a drive element (5) which comprises contact elements (9, 10) having an inner peripheral surface (4) that has a thread (3); an element (6) to be driven having an outer peripheral surface (8) provided with a thread (7); and an electric excitation device (16) for electrically controlling the drive device (2), wherein the element (6) to be driven is in threaded engagement with the drive elements (5). The contact elements (9, 10) are positioned symmetrically with respect to a virtual diametrical separating plane (P) and engage around at least part of the element (6) to be driven, wherein the contact elements (9, 10) are directly or indirectly connected to a base element (14) and to one another, and the drive device (2) has at least two multilayer piezoelectric actuators (11) which have a virtual actuator longitudinal axis (19) and which are positioned with a first side (12) on the base element (14) and with another side (13) that is opposite the first side (12) on the contact element (9, 10), and the electric excitation device (16) contains at least two generators (17, 18) which provide electrical voltages for exciting the piezoelectric actuators (11).
H02N 2/10 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement rotatif, p. ex. moteurs rotatifs
The invention relates to a positioning device (1), comprising: a stator (2); a driven element (6); a guide apparatus (7) for bearing the driven element (6) in a guided manner with respect to the stator (2) in a drive direction when the positioning device (1) is operational; a slider (4); a bearing apparatus (3) which bears the slider (4) so as to be movable relative to the stator (2) in the drive direction; a drive device (5) which drives the slider (4); a coupling apparatus (8); and a clamping apparatus (83). When released, the clamping apparatus (83) allows a range of movement between the connection device (80) and either the slider (4) or the driven element (6) in order to set up an assembly state of the positioning device (1) and, when clamped, said clamping apparatus rigidly couples together the connection section (89) and either the slider (4) or the driven element (6) in the drive direction and thereby allows a relative rotational movement between the driven element (6) and the slider (4) about a rotational axis extending in the drive direction.
The invention relates to a drive system (S) comprising at least two drive units (1, 2), each for receiving and driving a spindle (90) with a spindle axis (A90), at least one coupling device (K) which elastically couples two respective drive units (1, 2) to one another in the direction of the spindle receiving axis (AA), wherein each coupling device (K) has at least one spring device, wherein, in an unloaded neutral state in which there is no spindle (90) in the drive system (S), each spring device holds the respective two drive units (1, 2) stably at a predetermined distance (D12), and provides a respective spring deflection from the neutral state in opposing directions along the spindle receiving axis (AA). The invention also relates to a control system (A) and drive motor (M).
H02N 2/00 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction
H02N 2/02 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires
The invention relates to a method for a usage-related calibration of parallel kinematics with a programmable actuation, said method having the steps of: releasably attaching a separate pose marking element in a uniquely defined position and angular orientation on the platform or on a base of the parallel kinematics so as to be secured against tilting using a kinematic coupling, detecting the pose of the pose marking element using a pose detection device, and determining a pose marking coordinate system in the coordinate system of the pose detection device, determining a calibrated reference coordinate system of the parallel kinematics from the pose marking coordinate system on the basis of a specified first coordinate transformation rule, and storing the calibrated reference coordinate system of the parallel kinematics in the actuator thereof or a measuring software, detecting the pose of the world coordinate system using a coordinate measuring device, determining the world coordinate system in the coordinate system of the pose detection device, storing the pose of the world coordinate system, and making available the two stored coordinate systems or the coordinate transformation between the two coordinate systems in order to adapt the hexapod movements with respect to the world coordinate system.
The invention relates to a holding device (1) for holding at least one cable (K), said holding device (1) having: a holder housing (10) with a through-opening (14) for receiving at least one cable (K) and a connection device (20) which couples the holding device (1) to an application component (A) in a coupling state, wherein the connection device (20) has a coupling piece (60) which is made of a magnetic material and which can be coupled to an application component surface section (A1) of the application component (A) such that in the coupled state, the holder housing (10) can be rotated relative to the application component (A) at least about the second reference axis (B2). The invention also relates to a combination of such a holding device (1) and an application component (A), to an electric connection device (C), and to an actuator system (S) comprising an actuator (S1) and a holding device (1).
The present invention relates to a mounting arrangement for the articulated mounting of an actuator (10) in a positioning device (9). In order to enable a simpler production and mounting process and in particular to facilitate an exchange of actuators in an existing construction or installation of the positioning device, the mounting arrangement comprises a joint device (8), a bearing (2) supporting a part or an element of the joint device (8), and a bearing seat (1) detachably connected to the bearing (2). Further aspects of the invention relate to a positioning device having such a mounting arrangement and to a device for producing such a mounting arrangement.
The invention relates to a positioning module (1) with a base (2) and a positioning element (3) which is movable relative to the base (2), wherein the positioning element (3) is coupled via a constant-length leg element (4) to the base (2), and the leg element (4) is connected via an articulated device (5) to the positioning element (3), and the leg element (4) is assigned a drive module (6) which is arranged on the base with a drive unit (62), with a drive element (64) which is displaceable along a movement direction by the drive unit (62) and is connected via an articulated device (5') to the leg element (4), and with a force compensation device (7) which is connected to the drive element (64), wherein a defined force can be exerted on the drive element (64) along the movement direction of the latter by means of the force compensation device (7).
B25J 19/00 - Accessoires adaptés aux manipulateurs, p. ex. pour contrôler, pour observerDispositifs de sécurité combinés avec les manipulateurs ou spécialement conçus pour être utilisés en association avec ces manipulateurs
22.
Method of controlling at least two interacting piezoelectric actuators
A method is provided of controlling at least two interacting piezoelectric actuators for commonly displacing an object attached thereto. The method comprises the following steps: a. Step A: applying a first cyclic drive voltage signal with a constant frequency to the first piezoelectric actuator, b. Step B: applying a second cyclic drive voltage signal with a constant frequency to said second piezoelectric actuator, whereby the frequencies of the first and second cyclic drive voltage signals are substantially identical and whereby the frequencies of the first and second cyclic drive voltage signals are substantially oppositely phased, and in which at least in a predetermined time period the cyclic drive voltage signals in step A and B are synchronized such that at least one time phase is comprised in which the drive voltage signals of the first and second piezoelectric actuators have both a gradient of decreasing or increasing the respective drive voltage signal having the same sign or one of these gradients is zero and the other is not zero.
H02N 2/06 - Circuits d'entraînementDispositions pour la commande
H02N 2/02 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires
23.
Linear adjuster, positioning device, positioning assembly and method for repairing a linear adjuster
Disclosed is a linear adjuster, comprising: a spindle-and-spindle-nut mechanism, a first adjustment part, and a second adjustment part. The first adjustment part comprises a first main body and a first stop device. The second adjustment part comprises a second main body and a second stop device. The first adjustment part and the second adjustment part may be moved relative to each other by means of the spindle-and-spindle-nut mechanism which comprises a spindle longitudinal axis (L3). The first stop device and the second stop device come to a stop state when the linear adjuster performs a retraction travel movement or an extension travel movement and the first adjustment part and the second adjustment part are in a predefined stop travel position relative to each other. A positioning device, a positioning assembly and a method for repairing a linear adjuster.
G01B 11/00 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques
G01B 11/26 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour mesurer des angles ou des cônesDispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour tester l'alignement des axes
The present invention relates to the determination of a trajectory in a pose space of kinematics in accordance with a given path of the trajectory. The trajectory is to be traversed here by the kinematics for a certain application. A quantity of points in the working space of the kinematics, on which pose-space metrics to be used for determining the trajectory are based, is determined on the basis of the application. On the basis of the path, the trajectory is determined in such a way that, when the kinematics traverse the trajectory, a pose speed on the basis of the metrics is smaller than or equal to a predefined maximum speed.
A 6-axis positioning system features a base, a movable unit, and six variable-length actuators divided into two groups of three actuators each. The actuators of the first group are positioned within a region bounded by the second group on both the base and the movable unit. Each end of the actuators is connected via pivot fastening systems, allowing precise movement. Specifically, the first group's actuators can move within an angular range of ±30° relative to a virtual line running perpendicular from the base, while the second group's actuators can move within an angular range of 0° to 45° relative to a plane spanned by the base. This arrangement ensures a compact, precise, and flexible positioning system, ideal for applications requiring high accuracy and load-bearing capacity.
B23Q 1/54 - Supports mobiles ou réglables d'outils ou de pièces utilisant des mécanismes particuliers avec des guidages en rotation uniquement avec deux guidages en rotation uniquement
The invention relates to a rotation actuating device, comprising a base, a rotor and at least two groups of drive units, each group comprising at least two drive units, wherein the drive units are arranged peripherally on the base and between the base and the rotor, wherein each drive unit comprises two deflectable actuators, which are arranged in a V-shape with respect to each other, and a friction element, which is connected to both actuators, and wherein the rotor and the friction elements are pressed in a direction toward each other by means of a spring device arranged between the drive units, such that, when the actuators are not deflected, all the friction elements are in contact with the rotor and jointly span a contact plane, wherein a continuous movement of the rotor is realized by means of phase-offset control of the actuators of different groups of drive units. The invention further relates to a method for operating the rotation actuating device.
H02N 2/10 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement rotatif, p. ex. moteurs rotatifs
H02N 2/00 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction
H10N 30/00 - Dispositifs piézo-électriques ou électrostrictifs
The invention provides an actuator in the form of a rectangular plate of a monocrystalline piezoelectric material with two main faces (2, 2') of the largest surface area and at least four side faces joining the main faces to one another, two side faces of which are shorter than the other side faces and form short side faces (3, 3') and the others of which form long side faces (4, 4') of a length L, and three flat electrodes are arranged on one of the main faces (2, 2'), one electrode of which covers a greater surface area of this main face than the other two electrodes and forms a large electrode (5-1), and the other two form small electrodes (5-2, 5-3), and the large electrode (5-1) is arranged between the two small electrodes (5-2, 5-3), and at least one counterelectrode (6) is arranged on the other main face (2, 2'), and two friction elements (7) are arranged on at least one of the longer side faces (4, 4'), wherein the monocrystalline piezoelectric material arranged in the respective region between one of the three electrodes (5-1, 5-2, 5-3) and the at least one counterelectrode (6) is polarized and has a respective, defined direction of polarization in the corresponding polarization region (8-1, 8-2, 8-3).
The invention relates to a method for operating an electromechanical transducer, said method comprising: providing at least one electromechanical transducer (1) having at least one first ground portion (2) and one second ground portion (3), at least one of the ground portions (2, 3) having a ground element (4) with a free oscillating portion (42), and at least two layers (5) which are located between the first and second ground portions (2, 3) and comprise an electromechanical material, each of said layers (5) being located between two electrodes (50); and providing at least one electrical AC voltage source and one electrical rectifier. By applying an electrical AC voltage from the electrical AC voltage source to at least one of the layers (5) and using said at least one layer as a mechanical transducer portion (6), periodic mechanical deformations are excited in said transducer portion which are transmitted to the parts of the electromechanical transducer adjacent to the mechanical transducer portion (6), and the ground element (4) is excited to vibrate. The electrical AC voltage generated in the at least one other layer (5) due to the mechanical deformations and the use of said at least one other layer as an electrical transducer portion (7) is supplied to a rectifier, and the DC voltage generated in the rectifier is applied to the ground element (4), which thus functions simultaneously as a sonotrode and as an electrode.
B06B 1/06 - Procédés ou appareils pour produire des vibrations mécaniques de fréquence infrasonore, sonore ou ultrasonore utilisant l'énergie électrique fonctionnant par effet piézo-électrique ou par électrostriction
H02N 2/00 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction
30.
ELECTROMECHANICAL DRIVE WITH FLAT REINFORCEMENT BODY
The invention relates to an electromechanical drive (1) comprising two units (2, 3) which can be moved relative to each other. The aim of the invention is to specify the positioning movement of a unit (2, 3) and eliminate or at least mitigate the influence of a parasitic movement component on the function of the drive (1) and thus ensure the functionality of the drive (1). This is achieved in that the electromechanical drive (1) comprises a coupling element (4a) which has a flat reinforcement body and at least two connection sections which are attached to the reinforcement body in an articulated manner, wherein at least one of the connection sections is coupled to one of the units (2, 3).
H02N 2/02 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires
H02N 2/00 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction
H02N 2/10 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement rotatif, p. ex. moteurs rotatifs
The invention relates to a planar positioning apparatus for positioning loads on a predetermined plane, said positioning apparatus comprising: - a base plate having a flat surface that extends parallel to and at a specific distance from the predefined positioning plane, thus defining same; - four identical linear guides/drives which are collinearly fastened to or on the base plate in pairs parallel to the two other linear guides/drives; and - a parallel kinematic unit which comprises a load platform, is disposed between the parallel linear guides/drives, and is rotationally connected to the rotors of all linear drives via one passive joint each.
H01L 21/68 - Appareils spécialement adaptés pour la manipulation des dispositifs à semi-conducteurs ou des dispositifs électriques à l'état solide pendant leur fabrication ou leur traitementAppareils spécialement adaptés pour la manipulation des plaquettes pendant la fabrication ou le traitement des dispositifs à semi-conducteurs ou des dispositifs électriques à l'état solide ou de leurs composants pour le positionnement, l'orientation ou l'alignement
32.
DRIVE DEVICE, DRIVE MOTOR AND METHOD FOR DRIVING A SPINDLE
122; an operating device (40, 140, 240); and a frame device (30, 130, 230). The assembly comprising the frame device (30, 130, 230) and the operating device (40, 140, 240) has at least two bearing surface portions (51, 52, 151, 152, 254, 264) which are provided for contact with two different contact points (91, 92) of the spindle (90) in order to set the spindle (90) in rotation. The frame device (30, 130, 230) is designed as a structurally continuous component which completely surrounds the spindle compartment (39), the first actuator device (10) and the second actuator device (20). The invention also relates to a drive motor and a method for driving a spindle (90).
H02N 2/10 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement rotatif, p. ex. moteurs rotatifs
H02N 2/00 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction
33.
POSITIONING DEVICE AND METHOD FOR OPERATING SUCH A POSITIONING DEVICE
The invention relates to a positioning device (1) comprising a positioning unit (2) having at least one piezoelectric actuator (4), a drive element (5) to be coupled with an element (6) to be positioned, and a controller (3). The positioning device has a defect analysis device (16) for detecting defects in the positioning unit (2), wherein the actuator (4) or actuators, in addition to functioning as a drive for the drive element (5), functions or function as a generator (12) or a receiver (13) of ultrasonic sound waves, and the defect analysis device (16) comprises a measurement signal generator (22) for generating a sinusoidal electrical voltage for exciting the or a generator (12) and a resonance analyser (24) for analysing an electrical signal generated by the or a receiver (13). The invention also relates to a method for operating such a positioning device in order to detect defects in the positioning unit (2).
G01H 1/00 - Mesure des vibrations dans des solides en utilisant la conduction directe au détecteur
G01H 11/08 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores par détection des changements dans les propriétés électriques ou magnétiques par des moyens électriques utilisant des dispositifs piézo-électriques
G01M 5/00 - Examen de l'élasticité des structures ou ouvrages, p. ex. fléchissement de ponts ou d'ailes d'avions
H01L 41/08 - Eléments piézo-électriques ou électrostrictifs
H02N 2/06 - Circuits d'entraînementDispositions pour la commande
34.
LINEAR OR ROTARY TABLE WHICH CAN BE MOVED IN TWO DIMENSIONS
The present invention relates to a linear or rotary table which can be moved in two dimensions, with a stator and at least one upper rotor plate which can be moved in two independent translational directions or two independent rotary directions with respect to the stator, and at least two piezo-electric linear drives for moving the upper rotor plate in the two translational or rotary directions. Here, a middle rotor plate is provided which is arranged between the stator and the upper rotor plate. The at least two piezo-electric linear drives are in each case fastened to the stator, in order to move the upper rotor plate in the two translational directions or two rotary directions. At least one piezo-electric linear drive which is fastened to the stator is in contact with the upper rotor plate through an opening in the middle rotor plate, in order to move the upper rotor plate in a first translational or rotary direction. The at least two piezo-electric linear drives are preferably configured as piezo-electric frictional contact drives.
H02N 2/02 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires
H02N 2/10 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement rotatif, p. ex. moteurs rotatifs
The present invention relates to the control of a kinematic system, the control being improved by means of more efficient calculation of the direct and/or indirect kinematics. The invention is based on the idea of estimating the direct/indirect kinematics of a kinematic system on the basis of local support points. In particular, in the estimating of the indirect kinematics, an interpolation is used which, for poses in a specific spatial unit, is based on predetermined configuration vectors which are each assigned to a boundary point of the specific spatial unit in accordance with the indirect kinematics. In the estimating of the direct kinematics, an interpolation is used which, for configuration vectors in the specific spatial unit, is based on predetermined poses of the kinematic system which are each assigned to a boundary point of the specific spatial unit in accordance with the direct kinematics.
The present invention relates to a magnetic bearing device (1) comprising a stator arrangement (2) having at least two stators (2-1) and one rotor (3), wherein the stator (2) has a coil apparatus (4) having at least one coil former (4-1, 4-2), magnets (5) and a flux-guiding device (6), the rotor (3) is movable relative to the stator arrangement (2) along a longitudinal direction of the stator arrangement (2), and the stator arrangement (2) and the rotor (3) are designed such that, when electrical energy is supplied to the coil apparatus (4), a magnetic force can be applied to the rotor (3) in order to form an air gap between the stator arrangement (2) and the rotor (3). In this case, the smallest distance between the flux-guiding devices of the at least two stators (2) in the longitudinal direction of the stator arrangement (2) lies in a range of between zero and the distance between the coil apparatuses of the at least two stators (2). The present invention further relates to a positioning system comprising a magnetic bearing device (1) of this kind.
H01L 41/257 - Traitement de dispositifs ou de leurs parties constitutives afin de modifier une propriété piézo-électrique ou électrostrictive, p.ex. les caractéristiques de polarisation, de vibration ou par réglage du mode par polarisation
H01L 41/22 - Procédés ou appareils spécialement adaptés à l'assemblage, la fabrication ou au traitement de dispositifs piézo-électriques ou électrostrictifs, ou de leurs parties constitutives
H01L 41/35 - Formation de matériaux piézo-électriques ou électrostrictifs
A biaxial positioning device is described. The positioning device includes: a stationary base element; a first positioning element movably mounted relative to the base element along a first direction by means of a first guide device; a second positioning element movably mounted relative to the first positioning element along a second direction, which is different to the first direction, by means of a second guide device; a first drive for adjusting the first positioning element along the first direction of movement; and a second drive for adjusting the second positioning element along the second direction of movement. The stationary base element and the second positioning element each have a printed circuit board, and the first positioning element is a metal support element and is disposed between the base element and the second positioning element.
The present disclosure relates to a piezoelectric stick-slip-motor and control method. An exemplary method to enable speed variation of the piezoelectric stick-slip-motor with a reduced noise generation, includes: applying a cyclic sawtooth-waveform drive voltage signal with a constant frequency in which the drive voltage (V) increases to and decreases from a peak voltage (Vp) for operating the motor with a constant speed; and changing the motor speed by gradually increasing or decreasing the gradient (dV/dt) of increasing the drive voltage (V) to the peak voltage (Vp) with each subsequent sawtooth-waveform drive voltage signal cycle (C) while keeping the frequency of the drive voltage signal constant.
H02N 2/06 - Circuits d'entraînementDispositions pour la commande
H02N 2/02 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires
The present invention relates to a magnetic guiding device having a stator and a slide movable along a guiding direction relative to the stator, the stator and the slide being magnetized or magnetizable such that a magnetic field extending through the stator and the slide generates a magnetic supporting force on the slide acting along the guiding direction. To improve the running properties of the slide by avoiding differential slip, jerking and varying friction, according to the invention, the magnetic field extending through the stator and the slide simultaneously generates a magnetic pretensioning force which urges the slide and the stator against each other.
H02K 41/03 - Moteurs synchronesMoteurs pas à pasMoteurs à réluctance
H02K 1/17 - Noyaux statoriques à aimants permanents
H02K 5/173 - Moyens de support des paliers, p. ex. supports isolants ou moyens pour ajuster les paliers dans leurs flasques utilisant des roulements à rouleaux, p. ex. des roulements à billes
41.
Method for operating an electromechanical element, actuator, drive device and motor
A method for operating an electromechanical element, comprising the following steps: by controlling a first control section which is deformable by an electrical voltage by a first voltage signal generation of adjusting movements of a friction element which is arranged on the electromechanical element and which is provided for frictional contact with an element to be driven, controlling of a second control section which is deformable by an electrical voltage by a second voltage signal, which comprises a signal section, the frequency of which compared to the first voltage signal is by a factor, an actuator, a drive device with an actuator and a motor with a drive device and an element to be driven.
H02N 2/06 - Circuits d'entraînementDispositions pour la commande
H02N 2/02 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires
42.
Ultrasonic actuator, and motor having such an ultrasonic actuator
The disclosure relates to an ultrasonic actuator formed of a plate having a base, a cover surface which is geometrically similar to the base, and a lateral surface which interconnects the base and the cover surface, wherein the plate includes an electromagnetic material. Electrodes for inciting periodic deformations of the plate are arranged on the base of the plate and on the cover surface of the plate opposite the base. The base includes at least two faces which are arranged in parallel with one another and form contact portions of the lateral surface, and the two faces of the base arranged in parallel with one another, together with connecting lines which interconnect the respective end points of the faces arranged in parallel, form a parallelogram inscribed in the base, in which parallelogram an angle different from 90° is enclosed between adjacent faces. A motor having such an ultrasonic actuator is also disclosed.
H02N 2/00 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction
H10N 30/20 - Dispositifs piézo-électriques ou électrostrictifs à entrée électrique et sortie mécanique, p. ex. fonctionnant comme actionneurs ou comme vibrateurs
H02N 2/02 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires
43.
PRELOAD DEVICE AND DRIVE DEVICE COMPRISING A PRELOAD DEVICE
The invention relates to a preload device (10, 100, 300) comprising a first end piece (11, 111), a second end piece (12, 112) and at least one spring device (F, F1, F2) which connects the first end piece (11, 111) and the second end piece (12, 112) along a spring device reference axis (RA, RA1, RA2), wherein the at least one spring device (F, F1, F2) is formed by at least one meander portion (M1) which extends along the spring device reference axis (RA, RA1, RA2) in each case. The invention also relates to a drive device (1) comprising a preload device (10, 100, 300).
An inertia drive motor is disclosed which includes an element to be driven, and a stator, the stator having: an elastic frame, at least one friction element arranged on the elastic frame and configured to be brought into frictional contact with the element to be driven, and a first electromechanical actuator and a second electromechanical actuator, which are configured to cause, by interaction, a deformation of the elastic frame, upon excitation with different excitation voltages having a sawtooth signal, so as to displace the at least one friction element for driving the element to be driven by stick-slip contact with the friction element.
H02N 2/02 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires
H02N 2/00 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction
An actuator in the form of a stack is described, wherein the stack includes multiple first pairs of layers of a polarized electromechanical material and multiple second pairs of layers of a polarized electromechanical material, and the first and second pairs of layers are disposed, one behind the other, wherein at each pair of layers on each of its terminal surfaces electrically conductive layers are disposed, and, between the layers of each pair of layers, an electrically conductive layer for connection to at least one connection electrode of a second polarity is disposed, and the polarization directions of the electromechanical material of the layers of each pair are aligned opposite to one another, and the directions of polarization of the material of the layers of each pair of layers are aligned perpendicular to the directions of polarization of the material of the layers of each adjacent pair of layers.
H02N 2/02 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires
H01L 41/09 - Eléments piézo-électriques ou électrostrictifs à entrée électrique et sortie mécanique
H01L 41/083 - Eléments piézo-électriques ou électrostrictifs avec une structure empilée ou multicouche
H02N 2/06 - Circuits d'entraînementDispositions pour la commande
The invention relates to an angle setting device (1), comprising a setting body (2) which is to be adjusted in terms of its angular position and which has a convex shape at least in certain portions, a drive device (3) having at least one actuator (4) which is in direct or indirect contact with the convex portion of the setting body (2) at least in certain portions and serves to drive the setting body (2), a guide device (5) which allows guided angular adjustment of the setting body (2) about at least one setting axis, and a sensor device (6) having a sensor element (60) and a gauge (62) arranged or mounted on the setting body (2), wherein the at least one actuator (4) forms an aperture (7), and the sensor element (60) is arranged in such a way that its interaction with the gauge (62) is made possible through the aperture (7) in order, by means of direct measurement of the setting body (2), to detect the angular position thereof.
H02N 2/14 - Circuits d'entraînementDispositions pour la commande
H02N 2/10 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement rotatif, p. ex. moteurs rotatifs
H02N 2/06 - Circuits d'entraînementDispositions pour la commande
A positioning device is disclosed which can include a base and a positioning element, which is configured to be adjusted with respect to six degrees of freedom relative to the base, wherein the positioning element is coupled to the base via at least three pairs of length-variable and electrically driven leg elements, and each leg element is connected, at its respective ends, to the base and the positioning element via an articulation element. A respective pair of legs projects through another pair of legs and each pair of legs is arranged perpendicular to the respective other pairs of legs. According to exemplary embodiments, each of the articulation elements associated with a leg element has only two axes of rotation (DA), which are arranged perpendicular to each other, so that the articulation elements allow pivotal movements of each respective leg element in precisely two planes that are perpendicular to each other and run through a longitudinal axis of the leg element, and at the same time prevent a rotational movement about a longitudinal axis of the leg element.
The present invention relates to a drive device (1), in particular for a piezoelectric inertial or resonant drive. The drive device (1) comprises: a housing (2); at least two actuators (3), which are arranged inside the housing (2), contain an electromechanical material and each produce a deflection when excited with an electrical control voltage; and a drive element (4) arranged outside the housing (2). According to the invention, the drive device (1) has a force transmission apparatus (2c), via which the actuators (3) and the drive element (4) are motion-coupled such that the drive element (4) is set in motion by deflection of the actuators (3).
H01L 41/08 - Eléments piézo-électriques ou électrostrictifs
H01L 41/083 - Eléments piézo-électriques ou électrostrictifs avec une structure empilée ou multicouche
H01L 41/09 - Eléments piézo-électriques ou électrostrictifs à entrée électrique et sortie mécanique
H02N 2/00 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction
H02N 2/02 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires
49.
DRIVE DEVICE AND METHOD FOR OPERATING A DRIVE DEVICE OF THIS TYPE
The invention relates to a drive device (1) comprising at least one drive unit (2) with at least one first and one second drive element (20), and a runner (3) which is to be moved in a drive direction by way of the drive unit (2), wherein each drive element (20) comprises a base element (210) and at least three actuators (200) which are arranged on the base element (210) so as to lie next to one another in an arrangement direction which lies transversely with respect to the drive direction, and wherein at least one of the actuators (200) of a drive element (20) has a shear section (220) for carrying out a shear movement transversely with respect to the arrangement direction of the actuators (200) and along the drive direction of the runner (3), and at least one of the actuators (200) of a drive element (20) has a stroke section (240) for carrying out a stroke movement transversely with respect to the arrangement direction of the actuators (200) and transversely with respect to the drive direction of the runner (3), and wherein the at least two drive units (2) are arranged so as to lie behind one another along the drive direction of the runner (3). In addition, the invention relates to a method for operating a drive device (1) of this type.
H02N 2/02 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires
The present invention relates to a control device and a control method for a piezoelectric inertia motor. In the stick phase, a first switching element (611) and a second switching element (612) are switched counter to one another by pulse width modulation, wherein a time proportion of a first switching state of ON and OFF increases with respect to a time proportion of a second switching state of ON and OFF, and the pulse width modulation is filtered by the capacitive piezoelectric actuator (621, 622) and an inductor (631, 631'), and a first charging process is carried out, and at the start of the slip phase the time proportions of the first switching state and the second switching state are reversed, and, as a result, a second charging process counter to the first charging process is carried out at the capacitive piezoelectric actuator. By storing electromagnetic energy in the inductor, the provided configuration allows the reduction of energy dissipation as heat and can contribute to an energy efficient drive for inertia motors.
H02N 2/00 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction
H02N 2/02 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires
H02N 2/06 - Circuits d'entraînementDispositions pour la commande
51.
FRICTION CONTACT MOTOR HAVING A LIGHT ELEMENT FOR EMITTING LASER BEAMS
The invention describes a motor (1) having an actuator (2) and an element (3) that is to be driven by the actuator (2) by way of a friction contact, the friction contact being realized by way of a friction contact area (4) between a contact surface (22) of the actuator (2) and a friction surface (32) of the element (3) to be driven. According to the invention, the motor (1) comprises a light element (5) for emitting laser beams (52), the laser beams being directed at the friction contact area (4) in order to remove moisture or loose particles in the direct vicinity of the friction contact area (4) or to secure these to the contact surface (22) or the friction surface (32).
The invention relates to an ultrasonic actuator (2) having a resonator (3) in the form of a curved plate which is made of a piezoelectric material and has an average radius of curvature Rm, an average length L, a height H, a thickness t, a transverse plane of symmetry Sq and a longitudinal plane of symmetry SI, wherein the plate has an inner main surface (13), which is oriented radially inwards in relation to the average radius of curvature Rm, a radially outwardly oriented, outer main surface (14), and side surfaces which connect the inner main surface and the outer main surface to one another, characterized in that the curved plate comprises at least eight side surfaces, of which at least one side surface is a working surface (15) provided for establishing direct or indirect contact with an element which is to be driven, at least two side surfaces are contact surfaces (17) provided for establishing contact with a retaining device or an adjacent ultrasonic actuator, and at least four side surfaces are retaining surfaces (16) which are used for holding purposes, wherein the at least four retaining surfaces (16) are arranged at an identical angle α to the longitudinal plane of symmetry SI or at an identical angle φ to the transverse plane of symmetry Sq or at an identical angle α to the longitudinal plane of symmetry SI and at an identical angle φ to the transverse plane of symmetry Sq.
H01L 41/09 - Eléments piézo-électriques ou électrostrictifs à entrée électrique et sortie mécanique
H02N 2/00 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction
H02N 2/10 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement rotatif, p. ex. moteurs rotatifs
53.
POSITIONING DEVICE AND METHOD FOR ASSEMBLY THEREOF
The invention relates to a positioning device (1), comprising: - a stator (2); - a driven element (6); - a guide apparatus (7) for bearing the driven element (6) in a guided manner with respect to the stator (2) in a drive direction when the positioning device (1) is operational; - a rotor (4); - a bearing apparatus (3) which bears the rotor (4) so as to be movable relative to the stator (2) in the drive direction; - a drive unit (5) which drives the rotor (4); - a coupling apparatus (8); and - a clamping apparatus (83). When released, the clamping apparatus (83) allows a range of movement between the connecting device (80) and either the rotor (4) or the driven element (6) in order to set up an assembly state of the positioning device (1) and, when clamped, said clamping apparatus rigidly couples together the connecting portion (89) and either the rotor (4) or the driven element (6) in the drive direction and thereby allows a relative rotational movement between the driven element (6) and the rotor (4) about a rotational axis extending in the drive direction.
H02N 2/02 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires
H02N 2/10 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement rotatif, p. ex. moteurs rotatifs
H02N 2/00 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction
H02N 2/02 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires
H02N 2/00 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction
55.
METHOD AND ASSEMBLY FOR CALIBRATING PARALLEL KINEMATICS
The invention relates to a method for a usage-related calibration of parallel kinematics with a programmable actuation, said method having the steps of: releasably attaching a separate pose marking element in a uniquely defined position and angular orientation on the platform or on a base of the parallel kinematics so as to be secured against tilting using a kinematic coupling, detecting the pose of the pose marking element using a pose detection device, and determining a pose marking coordinate system in the coordinate system of the pose detection device, determining a calibrated reference coordinate system of the parallel kinematics from the pose marking coordinate system on the basis of a specified first coordinate transformation rule, and storing the calibrated reference coordinate system of the parallel kinematics in the actuator thereof or a measuring software, detecting the pose of the world coordinate system using a coordinate measuring device, determining the world coordinate system in the coordinate system of the pose detection device, storing the pose of the world coordinate system, and making available the two stored coordinate systems or the coordinate transformation between the two coordinate systems in order to adapt the hexapod movements with respect to the world coordinate system.
The present invention relates to a magnetic storage apparatus (1) and to a positioning system which contains the magnetic storage apparatus. The magnetic storage apparatus comprises a stator (2) and a rotor (3) which are formed from a coil device (4) having at least one coil body (4-1), magnets (5) and/or flux-conducting pieces (6a-6c, 7), the rotor (3) being movable in a movement direction (x) relative to the stator (2), and the stator (2) and rotor (3) being configured such that when electrical energy is applied to the coil device (4) a magnetic force can be exerted on the rotor (3) in order to form an air gap between the stator (2) and the rotor (3). In order to achieve a simple and independent configuration of the rotor, sufficiently substantial removal of the electrically induced heat input, and control over a relatively long adjusting path regardless of position, the coil device (4) is placed exclusively in the stator (2) and the extent of the rotor (3) in the movement direction (x) is less than the extent of the stator (2) in this direction, the extent of the stator (2) corresponding to the length of the at least one coil body (4-1).
The invention relates to an adjustment device comprising: a base component (B1), an adjustment body (10), at least one flexure bearing (21) by means of which the adjustment body (10) is mounted on the base component (B1) so as to be rotatable about an axis of rotation (D1) of the flexure bearing, and at least one drive device (C) which is coupled to the base component (B1) and to an adjustment body connection device (AV), in order to move these relative to one another. The drive device (C) has an actuator (60) comprising an electrical coil (71), the coil axis (AS) of which extends along the axis of rotation (D1) of the flexure bearing, and a compensation component (80) made of a magnetisable or magnetised material, as well as at least one permanent magnet segment (MS), which is located adjacent to the actuator (60) and is movable relative thereto, and of which the magnetic field lines extend along the coil axis (AS) in the interior of the permanent magnet segment (MS). The invention also relates to an adjustment system and to a computer program product.
H01F 7/08 - Électro-aimantsActionneurs comportant des électro-aimants avec armatures
H01F 7/122 - Guidage ou positionnement d'armatures, p. ex. maintien des armatures dans leur position extrême au moyen d'un aimant permanent
H02K 37/10 - Moteurs à rotor tournant pas à pas et sans rupteur ou commutateur actionné par le rotor, p. ex. moteurs pas à pas du type à aimant permanent
The present disclosure relates to an electromechanical linear drive having a housing, an electromechanical drive unit, a transmission element which is coupled to the electro-mechanical drive unit, and an element to be driven which is in frictional contact with the transmission element, where the transmission element is mounted on at least two bearing points with respect to the housing. Improved accessibility to the element to be driven and a longer adjustment path of the element to be driven can be achieved by placing the element to be driven in frictional contact with the transmission element at a point of engagement outside of all bearing points.
H02N 2/02 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires
09 - Appareils et instruments scientifiques et électriques
35 - Publicité; Affaires commerciales
38 - Services de télécommunications
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Computer software for activation or for control or for
driving of motors or machines or actuators or positioning
systems; computer software for integration in activation
components or controllers, particularly in activation
components or controllers for activation or control of
motors or machines or actuators or positioning systems;
computer software, particularly application software, for
peripheral devices of motors or machines or actuators or
positioning systems; electronic activation systems for
driving or for activation of motors or machines or actuators
or positioning systems; electronic control systems for
driving or for control of motors or machines or actuators or
positioning systems; integrated systems with computer
software, with electronic activation or control components
and with electric power amplifier for driving or for
activation or for control of motors or machines or actuators
or positioning systems; electronic activation components or
controllers for activation or for control or for driving of
motors or machines or actuators or positioning systems;
electronic activation components or controllers for
activation or for control or for driving of peripheral
devices of motors or of machines or actuators or positioning
systems; electric power amplifier for activation or for
control or for driving of motors or machines or actuators or
positioning systems. Retail or wholesale services with software for activation or
for control or for driving of motors or machines or
actuators or positioning systems; retail or wholesale
services with software for integration in activation
components or controllers, particularly in activation
components or controllers for activation or control of
motors or machines or actuators or positioning systems;
retail or wholesale services with computer software for
peripheral devices of motors or machines or actuators or
positioning systems. Provision of an access to an internet page for downloading
of software for activation or for control or for driving of
motors or machines or actuators or positioning systems;
provision of an access to an internet page for downloading
of software for integration in activation components or in
controllers, particularly in activation components or
controllers for activation or control of motors or machines
or actuators or positioning systems; provision of an access
to an internet page for downloading of computer software,
particularly application software, for peripheral devices of
motors or machines or actuators or positioning systems. Online provision of non-downloadable software, particularly
in data networks, for activation or for control or for
driving of motors or machines or actuators or positioning
systems; online provision of non-downloadable computer
software, particularly in data networks, for integration in
activation components or controllers, particularly in
activation components or controllers for activation or
control of motors or machines or actuators or positioning
systems; installing computer programs in electronic
activation components or in regulators or in controllers for
motors or machines or actuators or positioning systems;
installing computer programs in electronic activation
components or in regulators or in controllers for activation
or for control or for driving of motors or machines or
actuators or positioning systems; installing computer
programs in peripheral devices for activation or for control
or for driving of motors or machines or actuators or
positioning systems; hardware and software consultancy;
technological consultancy; information technology [IT]
consultancy; planning of technical projects; technical
project management in the area of IT; development of
utilization concepts in technical respect for software or
computer software; development of utilization concepts in
technical respect for electronic activation systems for
driving or for activation of motors or machines,
particularly positioning machines; development of
utilization concepts in technical respect for electronic
control systems for driving or for control of motors or
machines, particularly positioning machines; development of
utilization concepts in technical respect for integrated
systems with computer software, electronic activation or
control components and electric power amplifier for driving
or for activation or control of motors or machines,
particularly positioning machines.
60.
Positioning device, light processor having such a positioning device, and method for laser eye surgery using such a light processor
The present disclosure relates to a positioning device for positioning an object in a positioning plane. To minimize the position error (contouring error) in a continuous orbital travel in contrast to two linear adjusters (X and Y) arranged at a right angle to each other, the positioning device includes two rotation drives having different diameters and an object receiver for receiving the object. The object receiver is coupled to a first of the two rotation drives, which in turn is coupled to the second of the two rotating drives so that the object receiver is rotatable about the axes of rotation (A2, A3) of both rotation drives that are offset in parallel, and is thereby adjustable in the positioning plane. A light processor having such a positioning device, and a method for laser eye surgery using such a light processor are also disclosed.
The invention relates to an assembly for the positioning and position detection of a deformable load-bearing plate, having a driving parallel kinematics system with a plurality of drive legs, wherein the load-bearing plate forms a constituent part of the driving parallel kinematics system or is fixed rigidly on a platform thereof, a reference parallel kinematics system with a substantially deformation-free reference plate which is formed by the platform of the reference parallel kinematics system or is fixed rigidly thereto and which is positioned underneath the load-bearing plate, and a plurality of reference legs, a sensor assembly which comprises a plurality of leg length measurement devices arranged in the reference legs and also a plurality of distance sensors arranged on the reference plate for point-wise or region-wise detection of the distance of the reference plate from the load-bearing plate, and a position-calculating unit which is connected at the input side to the leg length measurement devices and to the distance sensors and which processes the output signals of the leg length measurement devices and distance sensors to give a position map of the load-bearing plate.
B25J 13/08 - Commandes pour manipulateurs au moyens de dispositifs sensibles, p. ex. à la vue ou au toucher
B25J 19/00 - Accessoires adaptés aux manipulateurs, p. ex. pour contrôler, pour observerDispositifs de sécurité combinés avec les manipulateurs ou spécialement conçus pour être utilisés en association avec ces manipulateurs
G01B 21/16 - Dispositions pour la mesure ou leurs détails, où la technique de mesure n'est pas couverte par les autres groupes de la présente sous-classe, est non spécifiée ou est non significative pour mesurer la distance ou le jeu entre des objets espacés
The invention relates to an actuator made of a piezoelectric material comprising electrodes arranged at least on the outer surfaces thereof or inside same, which form two generators of acoustic waves, and comprising at least one friction element arranged on the actuator or a friction surface arranged on the actuator, wherein the material of the actuator is either produced from sintered-together particles made of a lead-free, ferroelectric, oxidic, ceramic system, which forms a polycrystalline perovskite structure during sintering, or consists of a monocrystalline material, whose specific weight is 1.5 to 2 times lower than the specific weight of piezoelectric ceramics based on lead zirconate titanate.
H02N 2/00 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction
H02N 2/02 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires
The present disclosure relates to a linear drive, including: an actuator unit with at least one actuator; two guide elements and a movement element, wherein the movement element is displaceable along both guide elements by a movement generated by the actuator unit as a result of a stick-slip effect. In order to allow a more accurate displacement of the movement element in a compact design of the linear drive, the movement element can be brought into engagement with each of the two guide elements by static friction in order to be displaced along the two guide elements as a result of the stick-slip effect.
H02N 2/02 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires
The invention relates to a linear adjuster (1), comprising: - a spindle-and-spindle-nut mechanism (2); - a first adjustment part (10), which has a first main body (11) and a first stop device (30); - a second adjustment part (20), which has a second main body (21) and a second stop device (40), wherein the first adjustment part (10) and the second adjustment part (20) can be moved relative to each other by means of a spindle-and-spindle-nut mechanism (2) having a spindle longitudinal axis (L3), and wherein the first stop device (30) and the second stop device (40) come to a stop state when the linear adjuster (1) performs a retraction travel movement or an extension travel movement and the first adjustment part (10) and the second adjustment part (20) are in a predefined stop travel position relative to each other. The invention also relates to a positioning device, to a positioning assembly and to a method for repairing a linear adjuster (1).
The present invention refers to a method of controlling at least two interacting piezoelectric actuators for commonly displacing an object attached thereto. Such a method shall be improved. The method comprises the following steps: a. Step A: applying a first cyclic drive voltage signal with a constant frequency to the first piezoelectric actuator, b. Step B: applying a second cyclic drive voltage signal with a constant frequency to said second piezoelectric actuator, whereby the frequencies of the first and second cyclic drive voltage signals are substantially identical and whereby the frequencies of the first and second cyclic drive voltage signals are substantially oppositely phased, and in which at least in a predetermined time period the cyclic drive voltage signals in step A and B are synchronized such that at least one time phase is comprised in which the drive voltage signals of the first and second piezoelectric actuators have both a gradient of decreasing or increasing the respective drive voltage signal having the same sign or one of these gradients is zero and the other is not zero. The invention also refers to a corresponding assembly.
Providing access to an internet page for downloading of software for activation, control, and driving of motors, machines, actuators, and positioning systems; providing access to an internet page for downloading of software for integration in activation components and controllers, particularly in activation components and controllers for activation and control of motors, machines, actuators, and positioning systems; providing access to an internet page for downloading of computer software, particularly application software, for peripheral devices of motors, machines, actuators, and positioning systems Wholesale and retail store services featuring software for activation, control, and driving of motors, machines, actuators, and positioning systems; Wholesale and retail store services featuring software for integration in activation components and controllers, particularly in activation components and controllers for activation and control of motors, machines, actuators, and positioning systems; Wholesale and retail store services featuring computer software for peripheral devices of motors, machines, actuators and positioning systems
67.
6-AXIS POSITIONING SYSTEM HAVING A LOCKING COMPONENT
The present invention relates to a 6-axis positioning system (1), comprising a base (2), a movable unit (3) and six variable-length actuators (5.1, 5.2, 5.3; 7.1, 7.2, 7.3), one end (8) of each actuator being connected to the base (2) and the other end (9, 14) of each actuator being connected to the movable unit (3). At least one additional variable-length component (16) is provided, one end (8, 12) of which is connected to the base (2) and the other end (9, 14) of which is connected to the movable unit (3). The additional component (16) is designed such that the 6-axis positioning system (1) can be releasably locked at least in certain positions of the movable unit by means of the additional component. A system of this type should enable precise positioning that is more advantageous. For this purpose, the additional component (16) has a releasable locking brake (19), and the variable-length component (16) is designed such that its length can be varied passively by means of the movement of the six driven actuators (5.1, 5.2, 5.3; 7.1, 7.2, 7.3). The invention also relates to a corresponding method for operating a 6-axis positioning system (1).
The present invention relates to a 6-axis positioning system, comprising a base, a movable unit and six variable-length actuators. One end of each actuator is connected to the base, and the other end of each actuator is connected to the movable unit. The six actuators are divided into two groups each having three actuators. The actuators of the first group are arranged on the base within a region bounded by the actuators of the second group, and the actuators of the first group are arranged on the movable unit within a region bounded by the actuators of the second group. The lower end and the upper end of each of the three actuators of the second group are connected to the base and to the movable unit, respectively, by means of respective pivot fastening systems. The upper end of each of the three actuators of the first group is connected to the movable unit by means of a pivot fastening system. The lower end of each of the three actuators of the first group is connected to the base by means of a pivot fastening system that can be pivoted during adjustment operation of the 6-axis positioning system.
The invention relates to an adjustment device (1), comprising at least two linear stages (2, 3), which are arranged next to each other and which are fixedly connected to each other (6) by means of one of the adjustment sections (5) of each of the linear stages such that an adjustment movement of one linear stage can be transferred to the adjacent linear stage, wherein one linear stage is designed to bring about an increase in the distance between the adjustment sections arranged on said linear stage as a result of actuation of the adjustment element and an adjacent linear stage is designed to bring about a decrease in the distance between the adjustment sections arranged on said linear stage as a result of actuation of the adjustment element so that a displacement of the adjustment device can be realized, which displacement corresponds to the sum of the amounts of the changes in the distance between the adjustment sections of the linear stages.
H02N 2/02 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires
G02B 7/00 - Montures, moyens de réglage ou raccords étanches à la lumière pour éléments optiques
The invention relates to an ultrasonic motor comprising: an ultrasonic actuator (1) in the form of a rectangular piezoelectric plate (2) having two main faces (12, 13), two side faces (14), two end faces (15) and generators (G1, G2, G3, G4) for acoustic standing waves, which generators are arranged in two or four regions of the piezoelectric plate, the piezoelectric plate being divided by one or three transverse planes running perpendicularly to the side faces of said plate and parallel to the end faces of said plate; at least one driven element (6); and an electric control device (27), at least one friction element (3) being arranged on the ultrasonic actuator (1) and being pressed against the at least one driven element (6); and also an electric control device. According to the invention, the generators (G1, G2, G3, G4) of the acoustic standing waves are at the same time generators of static rotary deformations (torsional deformations) or static longitudinal rotary deformations (longitudinal torsional deformations) or static longitudinal deformations of the region of the piezoelectric plate that is arranged below the friction element (3) between two adjacent generators, the static deformations occurring substantially in the plane arranged parallel to the main faces (12, 13) of the piezoelectric plate (2).
H02N 2/00 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction
H02N 2/02 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires
The invention relates to an annular or hollow cylindrical ultrasonic actuator, on the end faces of which are arranged n≥2 friction elements, and on the outer peripheral surface of which are arranged 2n excitation electrodes, spaced apart from one another in each case by a separating gap, each of the friction elements being arranged in the region of a separating gap, wherein, between friction elements that are adjacent with respect to the periphery of the ultrasonic actuator and are located on different end faces, two excitation electrodes are arranged such that, when the ultrasonic actuator is electrically excited, the friction elements of both end faces simultaneously perform a movement which is suitable for driving an element to be driven to rotate in the same direction. The invention further relates to an ultrasonic motor having an ultrasonic actuator of this kind and having a holding device in which the ultrasonic actuator is inserted.
The invention relates to a brake device having a frame, at least one pair of mutually opposing braking elements, at least one actuation element in operative connection with each braking element, and a spring device, wherein each braking element has three joint sections which are arranged in a row and are connected to one another via flexure bearings, and the middle joint section of which has a contact section, and the two joint sections adjoining the middle joint section are each connected integrally to the frame via a flexure bearing, wherein a force is exerted on each braking element by means of the spring device, by means of which force the respective contact section can be pressed with a defined force against an element to be braked, and a force which counteracts the force exerted on the braking elements by the spring device acts on the braking elements by means of a continuous energy input into the actuation elements and, when the energy input into the actuation elements is absent, the force exerted by the latter on the braking elements is removed.
F16D 65/16 - Mécanismes d'actionnement pour freinsMoyens pour amorcer l'opération de freinage à une position prédéterminée disposés dans, ou sur le frein
F16D 121/30 - Électrique ou magnétique utilisant des éléments électrostrictifs ou magnétostrictifs, p. ex. éléments piézo-électriques pour relâcher un frein normalement appliqué par défaut
The present invention relates to an adjusting device for positioning an object, said adjusting device comprising: a base which is designed to move an object, that can be connected to the base, in a position-controlled manner along a movement path when said object is connected; and a supply line for transmitting power and/or signals to and/or from the base. According to the invention, the supply line is coupled to the base in a reversibly detachable manner in order to prevent damage to the supply line and/or to the base in the event of an unforeseen movement of the adjusting device and in order to facilitate handling of the adjusting device.
The invention relates to a rotor (1) for an ultrasonic motor, the rotor having two flanges (3), which run parallel to a running direction (L) of the rotor and each have a running surface (4), and a base (2) connecting the flanges (3), the rotor being configured to accommodate an actuator (5) for driving the rotor between the flanges such that the actuator is subjected to a preloading force between the flanges. In order to reduce fluctuations in the preloading force, according to the invention the longitudinal flexural rigidity of each flange in the running direction is greater than the transverse flexural rigidity of the base transverse to the running direction, such that, when a force acts perpendicularly on both flanges, at the application point of the force (F) an elastic flexural deformation by bending each of the two flanges relative to the base is greater than an elastic flexural deformation of each flange in the running direction. The base (2) is connected to each flange (3) by two flexure bearings (8), which are arranged at different ends of the rotor (1) in the running direction (L), the transverse flexural rigidity of the base being greater at the end in the running direction than in the middle between the ends.
H02N 2/02 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires
The present invention relates to a drive system comprising: an input shaft, an output shaft, and at least two coupling elements respectively coupled to the input shaft and the output shaft. In order to absorb assembly and manufacturing tolerances with respect to the shafts, the coupling elements and their attachment to the shafts and thereby prevent jamming of the drive system, at least one coupling element has an elastically deformable section, the elastically deformable section having a different material or a different cross-section than an adjacent section of the coupling element.
F16H 21/14 - Transmissions ne comportant essentiellement que des tringles ou des leviers, avec ou sans glissières tout mouvement étant dans un seul plan ou dans des plans parallèles pour transmettre un mouvement rotatif au moyen de manivelles, excentriques ou organes similaires, fixés d'un côté à un organe rotatif et guidés de l'autre
F16H 21/12 - Transmissions ne comportant essentiellement que des tringles ou des leviers, avec ou sans glissières tout mouvement étant dans un seul plan ou dans des plans parallèles pour transmettre un mouvement rotatif
F16C 7/04 - Bielles ou organes de liaisons similaires pivotant aux deux extrémitésStructure des pieds de bielles avec une pièce intermédiaire élastique ou un coussinet à fluide
F16H 35/00 - Transmissions ou mécanismes ayant d'autres caractéristiques de fonctionnement particulières
76.
ROTATION ACTUATING DEVICE AND METHOD FOR OPERATING A ROTATION ACTUATING DEVICE OF THIS TYPE
The invention relates to a rotation actuating device (1), comprising a base (2), a rotor (3) and at least two groups (40, 42) of drive units, each group comprising at least two drive units (4), wherein: the drive units (4) are arranged peripherally on the basis (2), between the base and the rotor (3); each drive unit (4) has two deflectable actuators (5), which are arranged in a V-shape with respect to each other, and a friction element (6), which is connected to both actuators; the rotor (3) and the friction elements (6) are pressed in a direction toward each other by means of a spring apparatus (30) arranged between the drive units (4), such that, when the actuators (5) are not deflected, all the friction elements (6) are in contact with the rotor (3) and jointly span a contact plane (K); continuous movement of the rotor (3) is realized by means of phase-offset control of the actuators (5) of different groups (40, 42) of drive units (4). The invention further relates to a method for operating the rotation actuating device (1).
H02N 2/10 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement rotatif, p. ex. moteurs rotatifs
H02N 2/02 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires
H02N 2/00 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction
77.
PIEZOELECTRIC STICK-SLIP-MOTOR AND METHOD OF CONTROLLING SAME
The present invention relates to a piezoelectric stick-slip-motor and method of controlling same. In order to enable speed variation of the piezoelectric stick-slip-motor with a reduced noise generation, the present invention provides the method of controlling a piezoelectric stick-slip-motor according to claim 1, said method comprising the following steps: Step A: applying to the motor a cyclic sawtooth-waveform drive voltage signal with a constant frequency in which the drive voltage (V) increases to and decreases from a peak voltage (Vp) for operating the motor with a constant speed; Step B: changing the motor speed by gradually increasing or decreasing the gradient (dV/dt) of increasing the drive voltage (V) to the peak voltage (Vp) with each subsequent sawtooth-waveform drive voltage signal cycle (C) while keeping the frequency of the drive voltage signal constant.
H02N 2/06 - Circuits d'entraînementDispositions pour la commande
H02N 2/02 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires
The invention relates to a magnetic guide device (1), comprising a stator (2) and a rotor (3) that can move relative to the stator (2) along a guide direction (Z), wherein the stator (2) and the rotor (3) are/can be magnetised such that a magnetic field (M) running through the stator (2) and the rotor (3) generates a magnetic supporting force (U) on the rotor (3) acting along the guide direction (Z). In order to improve the process characteristics of the rotor (3), by preventing differential slip, juddering and varying friction, according to the invention, the magnetic field (M) running through the stator (2) and the rotor (3) simultaneously generates a magnetic pretensioning force (F), which pushes the rotor (3) and the stator (2) against one another.
The invention relates to a joint, in particular for use in a parallel kinematic positioning device, which has at least three rotational degrees of freedom, and which has a rigid carrier element and at least two elastically deformable joint devices arranged overlapping one another at least in sections on the carrier element, wherein each of the joint devices comprises two joint elements, and each of the joint elements has an elongated connecting section and a securing section arranged at one end of the connecting section for securing the joint device to a higher level unit, and the two connecting sections of each joint device extend in a direction pointing away from the carrier element in such a way that they cross over one another.
The invention relates to an ultrasonic actuator (1) in the form of a plate (2) having a base (3), a cover surface (4) which is geometrically similar to the base, and a lateral surface (5) which interconnects the base and the cover surface, wherein the plate comprises an electromagnetic material and electrodes (6, 6', 7, 7') for inciting periodic deformations of the plate are arranged on the base of the plate and on the cover surface of the plate opposite the base, and the base (3) comprises at least two faces (8, 8') which are arranged in parallel with one another and form contact portions (50, 50') of the lateral surface (5), and the two faces of the base arranged in parallel with one another, together with connecting lines (9, 9') which interconnect the respective end points of the faces (8, 8') arranged in parallel, form a parallelogram (10) inscribed in the base, in which parallelogram an angle different from 90° is enclosed between adjacent faces. The invention also relates to a motor having such an ultrasonic actuator.
H01L 41/09 - Eléments piézo-électriques ou électrostrictifs à entrée électrique et sortie mécanique
H02N 2/02 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires
81.
INERTIA DRIVE MOTOR AND METHOD FOR CONTROLLING SUCH MOTOR
In order to reduce the number of different parts, an inertia drive motor (1) is provided which comprises an element to be driven (2) and a stator (3), the stator comprising at least one friction element (6) arranged on an elastic frame (4) and configured to be brought into frictional contact with the element to be driven, and a first electromechanical actuator (5a) and a second electromechanical actuator (5b), which are configured to cause, by interaction, a deformation of the elastic frame, upon excitation with different excitation voltages having a sawtooth signal, so as to displace the at least one friction element (6) for driving the element (2) by stick-slip contact with said friction element.
The invention relates to an electric motor having at least one magnetic track, which has a plurality of magnet elements connected in a line in a longitudinal direction or in the shape of a ring, in particular in a Halbach array configuration, and having at least one coil assembly, which includes a support that is substantially electrically and magnetically non-conductive with respect to the magnetic track, which is configured such that the coil assembly and the magnetic track are capable of carrying out a guided movement relative to each other, and which includes at least one group of three conductive flat coils. Each of the three flat coils is connected to one phase of a three-phase power supply, and the conductor tracks of the three flat coils of the group or of each group are arranged so as to be nested in each other or overlap with each other on a first and second support conductor plane, which are electrically insulated from each other by an insulating intermediate layer, such that parts of the conductor pattern of each of the three flat coils are designed to be connected one over the other and together in parallel on the first and second conductor plane and two of the three overlapping flat coils in each case have crossover regions in which the conductor tracks of the first flat coil only run on the first support conductor plane and the conductor tracks of the second flat coil only run on the second support conductor plane.
H02K 41/03 - Moteurs synchronesMoteurs pas à pasMoteurs à réluctance
H02K 3/26 - Enroulements caractérisés par la configuration, la forme ou le genre de construction du conducteur, p. ex. avec des conducteurs en barre constitués par des conducteurs imprimés
H02K 3/28 - Schémas d'enroulements ou de connexions entre enroulements
The invention relates to a biaxial positioning device comprising: a stationary base element (2); a first positioning element (3) movably mounted relative to the base element (2) along a first direction by means of a first guide device; a second positioning element (4) movably mounted relative to the first positioning element (3) along a second direction, which is different to the first direction, by means of a second guide device; a first drive for adjusting the first positioning element (3) along the first direction of movement; and a second drive for adjusting the second positioning element (4) along the second direction of movement. It is essential to the invention that the stationary base element (2) and the second positioning element (4) each have a printed circuit board (5), and the first positioning element (3) is a metal support element (6) and is disposed between the base element (2) and the second positioning element (4).
H02K 41/03 - Moteurs synchronesMoteurs pas à pasMoteurs à réluctance
H02K 3/26 - Enroulements caractérisés par la configuration, la forme ou le genre de construction du conducteur, p. ex. avec des conducteurs en barre constitués par des conducteurs imprimés
The invention relates to an actuator (1) in the form of a stack (2), wherein the stack (2) comprises at least a plurality of a first pair (10) of layers (11, 12) of a polarised electromechanical material and a plurality of a second pair (20) of layers (21, 22) of a polarised electromechanical material, and the first and second layer pairs (10, 20) are arranged behind one another in the stack direction, wherein electrically conductive layers (3) for connecting to at least one connection electrode (5) of a first polarity are arranged on every layer pair (10, 20) on every end surface thereof when viewed in the stack direction, and a respective electrically conductive layer (4) for connecting to at least one connection electrode (6) of a second polarity is arranged between the two layers of a layer pair, and the polarisation directions (P) of the electromechanical material of the two layers of every layer pair are orientated opposite one another, and the polarisation directions of the electromechanical material of the layers of every layer pair are each orientated perpendicular to the polarisation directions of the electromechanical material of the layers of every neighbouring layer pair.
H01L 41/083 - Eléments piézo-électriques ou électrostrictifs avec une structure empilée ou multicouche
H01L 41/257 - Traitement de dispositifs ou de leurs parties constitutives afin de modifier une propriété piézo-électrique ou électrostrictive, p.ex. les caractéristiques de polarisation, de vibration ou par réglage du mode par polarisation
The invention relates to a positioning device (1) having a base (2) and a positioning element (3), which can be adjusted in respect of six degrees of freedom relative to the base, wherein the positioning element is coupled to the base via at least three pairs of length-variable and electrically driven leg elements (4), and each leg element is connected, at its respective ends, to the base and the positioning element via an articulation element (5), wherein each pair of legs projects through another pair of legs, and each pair of legs is arranged perpendicularly to the respective other pairs of legs. Essential to the invention is the fact that each articulation element (5) associated with a leg element (4) has only two axes of rotation (DA) arranged perpendicularly to one another, and therefore the articulation elements allow the respective leg element to pivot in precisely two planes that are perpendicular to one another and run through a longitudinal axis of the leg element, and at the same time they prevent the leg element from rotating about a longitudinal axis.
Spindle nut which can be brought into engagement with or engages with a corresponding spindle, wherein the spindle nut comprises an internal thread which is defined by three longitudinal grooves, which run in a direction parallel to a central thread axis A of the spindle nut, which is interrupted, as a result of which three spaced-apart internal thread segments are formed in the spindle nut, and, in case the spindle nut is in engagement with the spindle, the external thread of the spindle is in contact only with the internal thread segments, wherein the spindle nut, with respect to a cross section arranged perpendicular to its central thread axis A, comprises a cross section geometry with an inner cross-section curve K facing the central thread axis, wherein at least the inner thread segments each form a partial circle shaped section of the cross section curve K, wherein the diameter of each partial circle shaped section corresponds to the core diameter of the internal thread, and the partial circle shaped sections of the cross-section curve K are connected via transition sections to longitudinal groove sections of the cross section curve K which are formed by the longitudinal grooves, wherein a distance a between the two transition sections adjoining a longitudinal groove section is smaller than a distance b between the two transition sections which adjoin a partial circle shaped section.
F16B 39/10 - Blocage des vis, boulons ou écrous dans lequel le verrouillage s'effectue après vissage par une plaque ou un anneau immobile par rapport au boulon ou à l'objet
F16B 39/12 - Blocage des vis, boulons ou écrous dans lequel le verrouillage s'effectue après vissage par écrous de blocage, c.-à-d. contre-écrous
87.
Electromechanical actuator, method for electrical excitation of an electromechanical actuator and ultrasonic motor
Disclosed is electromechanical actuator for ultrasonic motor in the shape of an n-sided regular polygon plate with n being equal to or greater than five. The polygon plate has two larger main surfaces and at least five smaller side surfaces connecting the main surfaces with each other. Two electrodes are arranged on one of the main surfaces and are electrically isolated from each other by a linear isolation area. One electrode is arranged on the other of the main surfaces. The polygon plate comprises an electromechanical material that undergoes a deformation when electric voltage is applied to the electrodes. The material of the electromechanical actuator comprises a single or polycrystalline piezoelectric ceramic with piezoelectric charge constant d31 differing from piezoelectric charge constant d32 both in sign and in value. The piezoelectric charge constants d31 and d32 define a first and second main deformation direction of the actuator perpendicular to each other. The orientation of the linear isolation area is parallel to either deformation direction.
The invention relates to a method for operating an electromechanical element, comprising the following steps: by actuating a first actuation section (A1), which can be deformed by an electrical voltage, with a first voltage signal (S10), generating actuation movements of a friction element which is arranged on the electromechanical element and is provided for frictional contact with an element (90) to be driven, actuating a second actuation section (A2), which can be deformed by an electrical voltage, with a second voltage signal (S20) whose frequency is higher by a factor in comparison with the first voltage signal (S10), actuator, drive device having an actuator and motor having a drive device and an element to be driven.
H01L 41/083 - Eléments piézo-électriques ou électrostrictifs avec une structure empilée ou multicouche
H02N 2/00 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction
H02N 2/02 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires
The invention relates to a fiber holder system (1) comprising a base (2) provided for arrangement on a positioning device, the base (2) comprising at least three contact surfaces (3) arranged perpendicular to one another, and a fiber holder (4) with a arrangement section (5), an arm section (6) and a holding section (7), and a holding device (8) for arrangement of the fiber holder (4) on the base (2) with a defined force in a positionally stable and releasable manner, wherein the arrangement section (5) also comprises three mutually perpendicular arrangement surfaces (9), and wherein the holding device (8) comprises magnets or magnetic sections in order to use the corresponding magnetic forces to press the arrangement surfaces (9) against the contact surfaces (3) with a defined force and thereby to realize the positionally stable and releasable arrangement of the fiber holder (4) on the base (2), and wherein a distal end (10) of the arm portion (6) is connected to the abutment portion (5) and wherein at the other distal end (11) of the arm portion (6) the holding section (7) for holding a fiber is disposed. Furthermore, the invention relates to the use of the aforementioned fiber holder system (1) in a fiber alignment device.
B25B 11/00 - Porte-pièces ou dispositifs de mise en position non couverts par l'un des groupes , p. ex. porte-pièces magnétiques, porte-pièces utilisant le vide
H02G 3/00 - Installations de câbles ou de lignes électriques ou de leurs tubes de protection dans ou sur des immeubles, des structures équivalentes ou des véhicules
H02G 3/32 - Installations de câbles ou de lignes sur les murs, les sols ou les plafonds utilisant des colliers de fixation
The invention relates to a fiber clamp with a base plate and at least two clamping bodies arranged parallel to one another on the base plate, the clamping bodies being pressed towards one another in one direction by means of a tensioning device, so that a fiber that can be arranged between the base plate and the clamping bodies is between the base plate and the clamping bodies can be pinched.
F16B 2/10 - Brides ou colliers, c.-à-d. dispositifs de fixation dont le serrage est effectué par des forces effectives autres que la résistance à la déformation inhérente au matériau dont est fait le dispositif externes c.-à-d. agissant par contraction utilisant des mâchoires sur pivot
F16L 3/10 - Supports pour tuyaux, pour câbles ou pour conduits de protection, p. ex. potences, pattes de fixation, attaches, brides, colliers entourant pratiquement le tuyau, le câble ou le conduit de protection fractionnés, c.-à-d. à deux éléments en prise avec le tuyau, le câble ou le conduit de protection
The invention relates to a retaining device (1) for an optical fiber (2) or a fiber bundle or fiber array, which retaining device is to be arranged on a positioning device (3). The retaining device (1) comprises an arm portion (4) and a retaining portion (5). A proximal end (6) of the arm portion (4) is designed to be arranged on the positioning device (3). The retaining portion (5) for retaining the optical fiber (2) is located at a distal end (7) of the arm portion (4). At least two flat or disk-shaped capacitive sensor elements (10) for simultaneously determining a distance and a position between the optical fiber (2) and an element or a structure relative to which the optical fiber (2) can be positioned are arranged on the arm portion (4) adjacently to the optical fiber (2).
G02B 6/42 - Couplage de guides de lumière avec des éléments opto-électroniques
G01B 7/02 - Dispositions pour la mesure caractérisées par l'utilisation de techniques électriques ou magnétiques pour mesurer la longueur, la largeur ou l'épaisseur
The invention relates to an electromechanical linear drive (1), comprising a housing (2), an electromechanical drive unit (3), a transmission element (4) which is coupled to the electromechanical drive unit (3), and an element (8) to be driven which is in frictional contact with the transmission element (4), wherein the transmission element (4) is mounted on at least two bearing points (L1, L2) with respect to the housing (2). The aim of the invention is to facilitate an improved accessibility of the element (8) to be driven and an elongated adjustment path of the element (8) to be driven. According to the invention, this is achieved in that the element (8) to be driven is in frictional contact with the transmission element (4) at one engagement point (E) outside of all of the bearing points (L1, L2), and a first section (A1) of the transmission element (4) which is located between the bearing points (L1, L2) runs within the housing (2) and/or a second section (A2) of the transmission element (4) which is located outside of all of the bearing points (L1, L2) protrudes out of the housing (2).
H02N 2/02 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires
A rotary ultrasonic motor includes an ultrasonic actuator, a driven element, an inner casing member and an outer casing member. A piezoelectric or electrostrictive or magnetostrictive material is arranged between an excitation electrode and at least one general electrode. The ultrasonic actuator is between the inner and outer casing members of a casing, and is directly or indirectly in contact with the element to be driven, so that periodic deformations generated in the ultrasonic actuator by electrical excitation are transferable to the drive element. The ultrasonic actuator is mounted by a retaining device arranged on the casing with at least one retaining section which engages in a recess associated with a respective retaining section.
H02N 2/00 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction
H02N 2/10 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement rotatif, p. ex. moteurs rotatifs
A method is disclosed for closed-loop motion control of an ultrasonic motor having at least one actuator with an excitation electrode and at least one common electrode, an element to be driven, a controller and at least one electrical generator for generating at least first and second excitation voltages U1 and U2 to be applied to the electrodes of the actuator for vibration of the actuator. A friction element of the actuator, due to its vibration, intermittently contacts the element to be driven with a driving force. The method includes providing the at least two excitation voltages U1 and U2 with different resemblance frequencies, a frequency difference deviating from a servo sampling frequency of the controller by 5 kHz at the most, and simultaneously applying the excitation voltages to the electrodes of the actuator.
H02N 2/06 - Circuits d'entraînementDispositions pour la commande
H02N 2/02 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires
95.
SYSTEM AND METHOD FOR SWITCHING OPERATING STATES OF PHYSICAL DEVICES
A firmware and a computer-implemented method for switching operating states of a physical device where the transitions (122t) between a plurality of operating states (A, B) of the physical device are controlled by a finite state machine implemented by a container object (131) including a plurality of function units. Configurations (122A, 122B) define arrangements of function units (133a, 133b, 133c) to perform functions in accordance with a particular operating state (A, B) associated with the respective configuration (122A, 122B). A trigger event (211t)is received to switch from a first operating state (A) into a second operating state (B). The switching occurs within a single control loop cycle, by modifying the arrangement of one or more function unit instances associated with the first operating state (A) into a modified arrangement of one or more function unit instances associated with the second operating state (B).
G06F 9/448 - Paradigmes d’exécution, p. ex. implémentation de paradigmes de programmation
G05B 19/045 - Commande à programme autre que la commande numérique, c.-à-d. dans des automatismes à séquence ou dans des automates à logique utilisant des machines à états logiques composées uniquement d'une mémoire ou d'un dispositif logique programmable contenant la logique de la machine commandée et dans lesquelles l'état de ses sorties dépend de l'état de ses entrées, ou d'une partie des états de sa propre sortie, p. ex. contrôleurs de décision binaire, automates finis
G05B 19/05 - Automates à logique programmables, p. ex. simulant les interconnexions logiques de signaux d'après des diagrammes en échelle ou des organigrammes
The disclosure relates to a joint, which has at least three degrees of rotational freedom, having a rigid carrier element and at least two elastically deformable joint elements formed on the carrier element in an overlapping arrangement, at least in sections. Each joint element can include two rod-shaped web portions arranged on the carrier element and extending therefrom which are arranged either converging or diverging relative to each other, and at their end facing away from the carrier element are connected to each other by way of a contact portion. Two web portions connected to each other extend in a first common plane and two other web portions connected to each other extend in a second common plane, and the first common plane and the second common plane intersect.
The invention relates to a multi-axis guide device comprising a stator, at least two rotors and at least two joint units, each having at least two joint elements, wherein each of the rotors is connected to the stator via a respective joint element of each joint unit, in such a way that it can be moved independently from the other rotors and along its own axis, and the joint elements of a joint unit are integrally formed with same.
The present invention relates to a positioning device for positioning an object in a positioning plane. In order to minimize the position error (contouring error) in a continuous orbital travel in contrast to two linear adjusters (X and Y) arranged at a right angle to each other, the positioning device (1) according to the invention comprises two rotation drives (2, 3) with different diameters, and an object receiver (4) for receiving the object, wherein the object receiver (4) is coupled to a first of the two rotation drives (3), which is in turn coupled to the second of the two rotation drives (2), such that the object receiver (4) is rotatable about the parallel and offset rotation axes (A2, A3) of both rotation drives (2, 3) and is thus adjustable in the positioning plane. The invention further relates to a light processor having such a positioning device (1), and to a method for laser eye surgery using such a light processor.
A61F 9/008 - Procédés ou dispositifs pour la chirurgie de l'œil utilisant un laser
B23K 26/02 - Mise en place ou surveillance de la pièce à travailler, p. ex. par rapport au point d'impactAlignement, pointage ou focalisation du faisceau laser
G02B 26/08 - Dispositifs ou dispositions optiques pour la commande de la lumière utilisant des éléments optiques mobiles ou déformables pour commander la direction de la lumière
99.
ASSEMBLY FOR THE POSITIONING AND POSITION DETECTION OF A DEFORMABLE LOAD-BEARING PLATE
The invention relates to an assembly for the positioning and position detection of a deformable load-bearing plate, having a driving parallel kinematics system with a plurality of drive legs, wherein the load-bearing plate forms a constituent part of the driving parallel kinematics system or is fixed rigidly on a platform thereof, a reference parallel kinematics system with a substantially deformation-free reference plate which is formed by the platform of the reference parallel kinematics system or is fixed rigidly thereto and which is positioned underneath the load-bearing plate, and a plurality of reference legs, a sensor assembly which comprises a plurality of leg length measurement devices arranged in the reference legs and also a plurality of distance sensors arranged on the reference plate for point-wise or region-wise detection of the distance of the reference plate from the load-bearing plate, and a position-calculating unit which is connected at the input side to the leg length measurement devices and to the distance sensors and which processes the output signals of the leg length measurement devices and distance sensors to give a position map of the load-bearing plate.
G12B 5/00 - Réglage de la position ou de l'attitude, p. ex. niveau d'instruments ou d'autres appareils, ou de leurs parties constitutivesCompensation des effets d'inclinaison ou d'accélération, p. ex. pour appareils d'optique
A linear drive (1) comprising an actuator unit (3) with at least one actuator (3a, 3b), two guide elements (4a, 4b) and a movement element (5), which can be displaced as a result of a stick-slip effect by means of a movement generated by the actuator unit. In order to allow an accurate displacement in a compact design, the movement element can be brought into engagement with each of the two guide elements by means of static friction in order to be displaced along the two guide elements as a result of the stick-slip effect. The actuator unit preferably has two identical actuators (3a, 3b), which each drive one of the two guide elements (4a, 4b) synchronously.
H02N 2/02 - Machines électriques en général utilisant l'effet piézo-électrique, l'électrostriction ou la magnétostriction produisant un mouvement linéaire, p. ex. actionneursPositionneurs linéaires
H02N 2/06 - Circuits d'entraînementDispositions pour la commande
