The invention relates to a machine tool, comprising: a frame (12), which has a stationary gantry (16) for holding at least one tool spindle (46, 48), the gantry (16) having a gantry opening (36), through which a working space (38) can be accessed, the or each tool spindle (46, 48) being movable on the gantry (16) in a first direction (Z) vertically and in a second direction (X) orthogonal to the first direction (Z); and a workpiece table (100), which has at least one place (114, 116) for holding a workpiece, the workpiece table (100) being translatable in a third direction (Y), which is orthogonal to the first direction (Z) and the second direction (X), at least one tool magazine (176, 178) being associated with the or each tool spindle (46, 48), it being possible to feed tools for tool exchange through at least one magazine opening (192, 194) in the gantry (16), and tools being exchanged between the or each tool spindle (46, 48) and the at least one tool magazine (176, 178) in the pick-up process, and/or the workpiece table (100) being pivotable about an axis (A) parallel to the second direction (X), and mutually spaced, jointly controlled drives (148, 150; 154, 156) being provided – two for the translational movement and two for the pivoting movement of the workpiece table (100).
B23Q 1/01 - Bâtis, bancs, colonnes ou éléments similairesAgencement des glissières de guidage
B23Q 3/157 - Agencements pour insérer ou retirer automatiquement les outils les outils rotatifs
B23Q 39/04 - Machines pour le travail des métaux incorporant un grand nombre de sous-ensembles capables chacun de réaliser une opération de travail du métal les sous-ensembles étant disposés pour fonctionner simultanément à différents postes de travail, p. ex. avec une table de travail annulaire se déplaçant par paliers
2.
Method and apparatus for wear analysis on a machine tool
A method of controlling a machine tool comprising the steps of: providing a data memory containing, for at least one specific working axis of the plurality of working axes, a plurality of data tuples each assigning a load value to a position value relative to the specific working axis, selecting a first data tuple and a second data tuple whose load values are different, and generating at least one control command for the machine tool, wherein the control command is adapted to perform a first tolerance measurement at a first position value and a second tolerance measurement at a second position value, and wherein, based on a first result of the first tolerance measurement and a second result of the second tolerance measurement, information about wear of a part of the machine tool is output. A corresponding device is also be disclosed.
G05B 19/4065 - Contrôle du bris, de la vie ou de l'état d'un outil
G05B 19/401 - Commande numérique [CN], c.-à-d. machines fonctionnant automatiquement, en particulier machines-outils, p. ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'un programme sous forme numérique caractérisée par des dispositions de commande pour la mesure, p. ex. étalonnage et initialisation, mesure de la pièce à usiner à des fins d'usinage
G05B 19/404 - Commande numérique [CN], c.-à-d. machines fonctionnant automatiquement, en particulier machines-outils, p. ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'un programme sous forme numérique caractérisée par des dispositions de commande pour la compensation, p. ex. pour le jeu, le dépassement, le décalage d'outil, l'usure d'outil, la température, les erreurs de construction de la machine, la charge, l'inertie
B23Q 17/09 - Agencements sur les machines-outils pour indiquer ou mesurer pour indiquer ou mesurer la pression de coupe ou l'état de l'outil de coupe, p. ex. aptitude à la coupe, charge sur l'outil
A machine tool (100) for machining workpieces (42) is provided with a tool spindle (26) and a workpiece table (40), which can be moved relative to each other in three axes (36, 18, 24) that are orthogonal to each other in order to machine a workpiece (42) clamped on the workpiece table (40) using a tool (30) clamped into the tool spindle (26), and with two tool magazines (50, 52), in each of which a respective tool set (49, 53) with tools (30) for machining the workpiece (42) are stored that can be selectively clamped into the tool spindle (26). Preferably, only one tool magazine (50, 52) is active at a time such that in each case solely the tool set (49, 53) from the active tool magazine (50, 52) is used to machine a clamped workpiece (42).
A device for monitoring a mounting state of a workpiece in a machine tool. The device comprises an illumination arrangement for illuminating the working space in a normal mode of operation; at least one workpiece sensor, which is configured to detect an actual state of the workpiece in the workpiece mount in the working space, and to provide a monitoring signal which describes the actual state of the workpiece; and a control unit. The illumination arrangement is also operable in at least one signal mode of operation. The control unit is configured to determine, based on the monitoring signal, whether the workpiece is in a first mounting state or a second mounting state, and, based thereon, to selectively operate the illumination arrangement in the signal mode of operation to provide visual information in the working space for visualizing the mounting state of the workpiece.
G05B 19/402 - Commande numérique [CN], c.-à-d. machines fonctionnant automatiquement, en particulier machines-outils, p. ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'un programme sous forme numérique caractérisée par des dispositions de commande pour le positionnement, p. ex. centrage d'un outil par rapport à un trou dans la pièce à usiner, moyens de détection additionnels pour corriger la position
A machine tool for machining workpieces has a machine frame, at least one component part which can be moved along a movement path by means of a power-operated drive unit, at least one frame part, which is connected to the machine frame and which is arranged at an end position in the movement path of the component part, and at least a first stop, via which the component part in contact with the frame part when said component part is in the end position, wherein the first stop lies outside the movement path.
The invention relates to a method and a device for de-powdering a construction chamber (44) of a system (10) for additive manufacturing, comprising: at least two lances (102, 104, 106, 108; 202) which are each provided with at least one nozzle (112, 114, 116, 118; 212; 222), the lances (102, 104, 106, 108; 202) being situated, at least in an operating position, adjacently to at least one additively manufactured component (56) in the construction chamber (44); a handling unit (140) for moving the at least two lances (102, 104, 106, 108; 202) relative to the construction chamber (44); a supply unit (130) for supplying a pressurised gaseous fluid; an outlet (162; 166); and a control unit (170) which is coupled to the at least two lances (102, 104, 106, 108; 202), the handling unit (140) and the supply unit (130) to control same so that, when the at least two lances (102, 104, 106, 108; 202) are used in the construction chamber (44), a directed stream of gas can be generated for powder removal in order to discharge the stream of gas via the outlet (162; 166). The invention also relates to a system for additive manufacturing and to the use of a device for de-powdering.
The invention relates to a tool magazine (30) for a machine tool having a tool spindle into which tools (25) for machining workpieces can be clamped, wherein the tool magazine (30) is provided with tool holders (53), in which tools (25) provided for insertion into the tool spindle can be stored, the tool holders (53) being moved along an endless three-dimensional track (51) extending around at least two columns (41, 42), and the track (51) being designed as a driven flexible drive, on which the tool holders (53), which are moved together with the flexible drive, are located.
Device for detecting highly stressed positions in a machining tool with a spindle head and a spindle motor, the device comprising: a measuring unit adapted to acquire measurement values of the spindle head during operation of the spindle unit, the measurement values having a current position of the spindle head; a memory unit adapted to store the measurement values acquired; a stress determining unit adapted to determine an associated stress value for each of the detected positions taking into account the measurement values; and an output unit adapted to at least one of outputting the detected positions with the respective associated stress value, and determining from a total number of the determined stress values at least one high stress value which is greater than the other stress values of the total number, and then outputting the at least one determined high stress value with the position assigned to it.
G01B 7/16 - Dispositions pour la mesure caractérisées par l'utilisation de techniques électriques ou magnétiques pour mesurer les déformations dans un solide, p. ex. au moyen d'une jauge de contrainte à résistance
G05B 19/4065 - Contrôle du bris, de la vie ou de l'état d'un outil
G07C 3/00 - Enregistrement ou indication de l'état ou du fonctionnement de machines ou d'autres appareils à l'exclusion des véhicules
B23Q 17/00 - Agencements sur les machines-outils pour indiquer ou mesurer
B23Q 17/22 - Agencements sur les machines-outils pour indiquer ou mesurer pour indiquer ou mesurer la position réelle ou désirée de l'outil ou de la pièce
The invention relates to a machine tool for machining tools, the machine tool comprising: a machine frame (22); at least one component (63) which can be moved along a movement path (72) by means of a drive unit (62) actuated by an external force; at least one frame part (83) which is connected to the machine frame (22) and which is located at an end position (87) in the movement path (72) of the component (63); and at least one first stop (85) via which the component (63) located in the end position (87) is in contact with the frame part (83), wherein the first stop (85) lies outside the movement path (72) (figure 3).
B23Q 5/40 - Avance par transmission mécanique des autres organes supportant les outils ou les pièces, p. ex. avance des traînards, des glissières d'outils à avance continue par un arbre, p. ex. une vis-mère
A workpiece change for use in a machine tool that comprises a tool spindle for clamping tools for machining workpieces, comprises two wheels arranged parallel to one another and rotatable about an axis of rotation into at least two prominent angular positions. Two swivel tables for clamping workpieces are arranged between the wheels and are each mounted on the wheels to swivel about a swivel axis which runs parallel to the axis of rotation. In each prominent angular position, one of the swivel tables is located in its working position in which clamped workpieces can be machined with the tools. Both wheels are supported at their rim.
B23Q 1/66 - Tables de travail pouvant être interchangées pour être mises en position de travail
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
B23Q 5/04 - Entraînement des principaux organes de travail des arbres rotatifs, p. ex. des broches de travail
B23Q 7/02 - Agencements pour la manipulation des pièces, spécialement combinés aux machines-outils ou disposés dans ces machines ou spécialement conçus pour être utilisés en relation avec ces machines, p. ex. pour le transport, le chargement, le positionnement, le déchargement, le triage au moyen de tambours, de tables rotatives ou de plateaux
B23Q 7/14 - Agencements pour la manipulation des pièces, spécialement combinés aux machines-outils ou disposés dans ces machines ou spécialement conçus pour être utilisés en relation avec ces machines, p. ex. pour le transport, le chargement, le positionnement, le déchargement, le triage coordonnés pour permettre un travail en chaîne
B23Q 39/02 - Machines pour le travail des métaux incorporant un grand nombre de sous-ensembles capables chacun de réaliser une opération de travail du métal les sous-ensembles étant susceptibles d'être mis en fonctionnement à un seul poste de travail
B23Q 1/52 - Supports mobiles ou réglables d'outils ou de pièces utilisant des mécanismes particuliers avec des guidages en rotation uniquement avec un seul guidage en rotation
B23Q 1/64 - Supports mobiles ou réglables d'outils ou de pièces caractérisés par le but du déplacement
11.
TOOL GRIPPER FOR A TOOL HOLDER, TOOL MAGAZINE AND MACHINE TOOL
There is described a tool gripper (22) for a tool holder (14) having a longitudinal axis (30), said tool holder (14) having a collar (32), on a bottom side of which along the longitudinal axis a machining tool is fastenable, and on an upper side of which along the longitudinal axis a hollow shank taper (31) for clamping the tool holder in a tool receptacle is provided, wherein the tool gripper (22) has holding means (61, 62; 65, 66; 69, 72) which grasp the hollow shank taper (31) of a tool holder (14) inserted into the tool gripper (22).
Disclosed is a tool magazine (30) for a machine tool having a tool spindle into which workpiece-machining tools (25) can be clamped. Said tool magazine (30) comprises tool holders in which tools (25) that are to be inserted into the tool spindle can be placed. According to the invention, at least two superimposed helical track units are provided, each of which comprises a cylinder housing (76) and a driving cylinder (41, 42) that is mounted in the cylinder housing (76) so as to be rotatable about the vertical cylinder axis (43, 44). A helical guiding groove (74), on which tool carriages are slidably mounted, is formed on each cylinder housing (76), the tool holders being arranged on the tool carriages. Furthermore, each driving cylinder (41, 42) includes at least one driving means (52) that moves a tool carriage along the guiding groove (74) when the driving cylinder (41, 42) is rotated relative to the cylinder housing (76).
Disclosed is a workpiece replacement device (21) for a machine tool comprising a tool spindle into which workpiece-machining tools can be clamped. Said workpiece replacement device includes two parallel wheels (23, 24) which are rotatable about an axis of rotation (25) in at least two angular positions. Furthermore, two swiveling tables (26, 27) for clamping workpieces are arranged between the wheels (23, 24) and are mounted on the wheels (23, 24) so as to be able to swivel about a swivel axis (28, 29) extending parallel to the axis of rotation (25). In each angular position, one of the swiveling tables (26, 27) is in the operating position, in which clamped workpieces can be machined by the tools. The two wheels (23, 24) are mounted at the rim (50) thereof.
B23Q 1/52 - Supports mobiles ou réglables d'outils ou de pièces utilisant des mécanismes particuliers avec des guidages en rotation uniquement avec un seul guidage en rotation
B23Q 1/66 - Tables de travail pouvant être interchangées pour être mises en position de travail
B23Q 7/14 - Agencements pour la manipulation des pièces, spécialement combinés aux machines-outils ou disposés dans ces machines ou spécialement conçus pour être utilisés en relation avec ces machines, p. ex. pour le transport, le chargement, le positionnement, le déchargement, le triage coordonnés pour permettre un travail en chaîne
The invention relates to a tool carrier (27) for a tool retainer (14) having a longitudinal axis (30), which tool retainer has a collar (32) provided with a gripping groove (36), to which collar a machining tool can be fastened on a lower side in the longitudinal axis (30), and on which collar a connecting part (31) for clamping the tool retainer (14) into a tool receptacle (89) of a tool spindle (12) is provided on an upper side in the longitudinal axis (30), wherein the tool carrier (27) is provided with at least one retaining arm (51) that grasps a tool retainer (14) inserted into the tool carrier (27) on an outer surface in a form-closed manner by means of a retaining section (54) of the at least one retaining arm in a retaining position of the at least one retaining arm and which enables movement of the tool retainer (14) relative to the tool carrier (27) in an insertion direction (90) in a release position of the at least one retaining arm. The at least one retaining arm (51) lies at the height of the gripping groove (36) of a tool retainer inserted into the tool carrier (27) at the retaining section (54) of the at least one retaining arm in the release position of the at least one retaining arm.
The present invention relates to a machine tool and a corresponding method for machining, in particular for turning and milling, a workpiece having a central bore, said machine tool including a tool holder for holding a tool, a work rest for seating the workpiece, a work mounting for holding the workpiece in place, and a drive mechanism for rotating the workpiece about a central rotation axis, wherein the work rest has an arbor for attaching the workpiece, such that a section of the arbor projects into the central bore on a first side of the workpiece, and wherein the work mounting has a counter-holder movable in the direction of the bore axis of the central bore for applying a contact pressure, acting in the direction of the bore axis, to the workpiece on a second side opposite the first side.
B23P 13/00 - Fabrication d'objets métalliques par des opérations impliquant un usinage à la machine, mais non couvertes par une seule autre sous-classe
B23C 3/18 - Usinage de surfaces à double courbure pour le façonnage d'hélices, d'aubes de turbines ou de roues à ailettes
B23C 1/14 - Machines à fraiser non conçues pour des pièces particulières ou des opérations spéciales avec une table porte-pièce rotative
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
B23B 3/12 - Machines à tourner caractérisées par l'utilisation de plateaux à plateau vertical, c.-à-d. tour en l'air
B23B 5/00 - Machines ou dispositifs à tourner spécialement conçus pour un travail particulierAccessoires correspondants spécialement conçus à cet effet
16.
MACHINE TOOL HAVING A MACHINE MAGAZINE AND A BACKGROUND MAGAZINE
In a machine tool having at least one tool spindle which is displaceable in a relative manner in at least one of three spatial directions with respect to a device for holding workpieces and in which tools (W1-W7) for machining the workpieces are clampable, there are provided a machine magazine (36), in which tools (W1-W7) provided for introducing into the tool spindle (23) are stored, and a background magazine (31), in which tools (W1-W7) provided for introducing into the machine magazine (36) are stored. No more than four storage spaces (42, 43, 44, 45) for accommodating tools (W1-W7) are provided in the machine magazine (36).
The invention relates to a tool magazine (30) for a machine tool with a tool spindle in which tools (25) for machining workpieces can be clamped. The tool magazine (30) is equipped with tool holders in which tools (25) that are provided for inserting into the tool spindle can be placed. A closed, three-dimensional track (54) is provided on which tool slides (69) are movably mounted, said tool holders being formed on the tool slides.
The invention relates to a machine tool having a first machine part (11), which is mounted so as to be movable with respect to a second machine part (10), wherein a first element (15) and a second element (14) of a measurement system (16), said second element interacting with the first element (15), are arranged on the first machine part (11) and on the second machine part (10), respectively, and wherein said measuring system detects the relative position of the two machine parts (10, 11) to each other. The first element (15) of the measurement system (16) is movably mounted on the first machine part (11). According to the invention, there is a thermal, substantially length-invariable connection (26) between a measurement point (Zm) on the first machine part (11) and the first element (15) of the measurement system (16).
B23Q 17/22 - Agencements sur les machines-outils pour indiquer ou mesurer pour indiquer ou mesurer la position réelle ou désirée de l'outil ou de la pièce
B23Q 11/00 - Accessoires montés sur les machines-outils pour maintenir les outils ou les organes de la machine dans de bonnes conditions de travail ou pour refroidir les pièces travailléesDispositifs de sécurité spécialement combinés aux machines-outils, disposés dans ces machines ou spécialement conçus pour être utilisés en relation avec ces machines
A machine tool for machining workpiece rods (24) in particular to form slender workpieces is provided with a main spindle (15) defining a tool axis (17) for receiving a tool (16) for machining the workpiece, a rod holder (23) defining a longitudinal axis (34) for holding the workpiece rod (24), and at least one first workpiece holder (25) for holding the workpiece (40) severed from the workpiece rod (24), wherein the first holder (25) and the main spindle (15) are arranged so as to pivot relative to each other. A second workpiece holder (26) is provided, which is permanently aligned coaxially to the first workpiece holder (25). The two workpiece holders (25, 26) can be displaced synchronously to each other and are disposed on a common carrier (22), which can pivot about a pivot axis (31) running transversely to the tool axis (17) and transversely to the longitudinal axis (34).
B23Q 1/48 - Supports mobiles ou réglables d'outils ou de pièces utilisant des mécanismes particuliers avec des guidages en translation et des guidages en rotation
In a machine tool having a spindle head (17), in which tools (22) for machining workpieces (41, 42, 43) are mounted in a rotatably driven manner about the longitudinal axes (23) thereof, the spindle head (17) is mounted pivotably about a pivot axis (19) on a traveling column (11) and can be linearly displaced in three axes (14, 16, 18) relative to a workpiece chucking device (25). The spindle head (17) is mounted pivotably about a vertical pivot axis (19) such that the tools (22) mounted in the spindle head (17) extend horizontally. Furthermore, the workpiece chucking device (25) for receiving at least one elongated workpiece (41, 42, 43) is designed and configured such that the workpiece (41, 42, 43) can be pivoted about a horizontal pivot axis (29).
B23Q 1/52 - Supports mobiles ou réglables d'outils ou de pièces utilisant des mécanismes particuliers avec des guidages en rotation uniquement avec un seul guidage en rotation
B23Q 1/62 - Supports mobiles ou réglables d'outils ou de pièces utilisant des mécanismes particuliers avec des guidages en translation uniquement avec deux guidages en translation uniquement à axes perpendiculaires, p. ex. chariots à mouvements transversaux
The invention relates to a machine tool (10) comprising a workpiece holder (12) and a tool holder (24) displaceable relative to the workpiece holder (12) and a machine part (27) by means of machine elements (18, 21, 23), in which a tool (25) is chucked for machining a workpiece (14) supported by the workpiece holder (12). At least two length measurement systems (30) are provided, directly detecting the linear distance formula (I) between a measurement point (S) near the tool on the workpiece holder, and each further measurement point (A, B) on the machine part.
B23Q 17/22 - Agencements sur les machines-outils pour indiquer ou mesurer pour indiquer ou mesurer la position réelle ou désirée de l'outil ou de la pièce
B23Q 11/00 - Accessoires montés sur les machines-outils pour maintenir les outils ou les organes de la machine dans de bonnes conditions de travail ou pour refroidir les pièces travailléesDispositifs de sécurité spécialement combinés aux machines-outils, disposés dans ces machines ou spécialement conçus pour être utilisés en relation avec ces machines
22.
Machine tool, particularly for milling a turbocharger compressor impeller
The present invention relates to a machine tool and a corresponding method for machining, in particular for turning and milling, a workpiece having a central bore, said machine tool including a tool holder for holding a tool, a work rest for seating the workpiece, a work mounting for holding the workpiece in place, and a drive mechanism for rotating the workpiece about a central rotation axis, wherein the work rest has an arbor for attaching the workpiece, such that a section of the arbor projects into the central bore on a first side of the workpiece, and wherein the work mounting has a counter-holder movable in the direction of the bore axis of the central bore for applying a contact pressure, acting in the direction of the bore axis, to the workpiece on a second side opposite the first side.
B23C 3/18 - Usinage de surfaces à double courbure pour le façonnage d'hélices, d'aubes de turbines ou de roues à ailettes
B23C 1/14 - Machines à fraiser non conçues pour des pièces particulières ou des opérations spéciales avec une table porte-pièce rotative
B23Q 1/25 - Supports mobiles ou réglables d'outils ou de pièces
B23Q 3/04 - 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 à inclinaison réglable
B23P 13/00 - Fabrication d'objets métalliques par des opérations impliquant un usinage à la machine, mais non couvertes par une seule autre sous-classe
B23B 5/00 - Machines ou dispositifs à tourner spécialement conçus pour un travail particulierAccessoires correspondants spécialement conçus à cet effet
B23B 3/12 - Machines à tourner caractérisées par l'utilisation de plateaux à plateau vertical, c.-à-d. tour en l'air
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
The present invention relates to a machine tool for machining of workpieces, having a workpiece support for mounting the workpiece, a tool holder, which can be moved at least along one axis, for holding a tool for machining the workpiece, and workpiece holding units for fixing the workpiece during the machining, the workpiece holding units being arranged outside the workpiece support surface of the workpiece support, which is covered by the workpiece in the mounted state, and each having a holding element for fixing the workpiece. In order that also workpieces of greater diameter can be machined, the machine tool otherwise being of the same dimensions, it is provided according to the invention that the holding elements can each be moved, substantially parallel to the workpiece support surface, in the direction of the workpiece, in particular in the direction of a central workpiece axis, which runs perpendicular to the workpiece support surface, for the purpose of centering and fixing the workpiece. The holding elements comprise a clamping surface that is arranged obliquely in relation to the workpiece support surface and that is, in the mounted state, pressed against the workpiece for fixing and centering the workpiece to be machined, thereby exerting a pressure both in the direction of the workpiece support surface and in the direction of the central workpiece axis.
B23B 35/00 - Méthodes d'alésage ou de perçage ou autres méthodes de travail impliquant l'utilisation de machines à aléser ou à percerUtilisation d'équipements auxiliaires en relation avec ces méthodes
B23B 41/00 - Machines ou dispositifs à aléser ou à percer spécialement adaptés à un travail particulierAccessoires spécialement conçus à cet effet
24.
FIXTURE AND METHOD FOR PRODUCING AT LEAST ONE WORKPIECE
A fixture (23) for producing at least one workpiece (35) from a planar blank (34) of small wall thickness has a bottom part (26) which has a first plane bearing surface (38) for the blank (34) and a first outer side (39) pointing away from the first bearing surface (38). Furthermore, a top part (27) is provided which can be mounted on the bottom part (26) and can be secured to the latter and which has a second plane bearing surface (41) for the blank (34) and a second outer side (42) pointing away from the second bearing surface (41). In this case, the top part (27) and the bottom part (26) accommodate the blank (34) in a sandwich-like manner between the first and the second bearing surfaces (38, 41). There is provided in the top part (27) or the bottom part (26) a working opening (45, 43) which extends from the outer side (42, 39) thereof to the bearing surface (41, 38) thereof, wherein the working opening (45, 43) exposes a planar region of an accommodated blank (34) for machining, said region corresponding in its planar dimensions (46, 47) at least to those (48) of the workpiece to be produced.
The invention relates to a machine tool (10) comprising a fixture (15) in the working space (17) thereof for receiving workpieces (16) to be machined. A working spindle (18) for machining the workpieces (16) and a carriage supporting the working spindle that can be displaced relative to the device (15) in a longitudinal axis (x) are further provided. At least one cover having variable length in the longitudinal axis (x) and having a plurality of cover elements (54) for the working space (17) extending transverse to the longitudinal axis (x) is provided on the carriage, wherein the cover (25) covers both one area (64) with a variable length between the carriage (34) and a side wall (21, 22, 51) of the working space (17). The cover (25) having variable length is stabilized by at least one chain (53) having chain links (60) pivotally connected to each other about a pivot axis (50). The chain (53) is thereby disposed so that the pivot axis (50) extends transverse to the area (54) having variable length.
A machine tool is provided with a tool spindle (12), into which an HSK tool holder (33) is drawn by means of an axially adjustable clamp rod (27). Furthermore, a sequence control (52) is provided for the operation of the machine tool, wherein a bearing surface (38) is provided on the tool holder (33), and this bearing surface (38), when the tool holder (33) is clamped in place in the tool spindle (12), is in full-face contact with a mating surface (39) provided on the tool spindle (12). The sequence control (52) uses an actual value dependent on the current axial position of the clamp rod (27) in order to make a statement about the full-face contact. An indicator sleeve (48) having a circumferential cover surface (49) pointing radially outwards is connected to the clamp rod (27), the axial position of which indicator sleeve (49) can be sensened via the at least one sensor (51)
B23Q 17/00 - Agencements sur les machines-outils pour indiquer ou mesurer
B23B 31/00 - Mandrins de serrageMandrins extensiblesLeurs adaptations à la commande à distance
B23B 31/26 - Mandrins de serrage caractérisés par le système de commande à distance des moyens de serrage utilisant des transmissions mécaniques dans la broche de travail
The present invention relates to a machine tool (1) for machining workpieces (20), having a workpiece support (19) for chucking the workpiece (20), a tool holder (22), which can be moved at least along one axis, for holding a tool (24) for machining the workpiece (20), and workpiece holding units (30) for fixing the workpiece (20) during the machining, wherein said workpiece holding units (30) are disposed outside the workpiece support surface (34) of said workpiece support (19), which is covered by said workpiece (20) in the chucked state and each have a holding element (31) for fixing said workpiece (20). In order that workpieces of larger diameters can thus also be machined with otherwise identical dimensions of the machine tool, it is provided according to the invention that the holding elements (31) can each be moved substantially parallel to the workpiece support surface (34) in the direction toward the workpiece (20), in particular in the direction toward a central workpiece axis (29), which runs perpendicular to the workpiece support surface (34), to center and fix the workpiece (20).
The invention relates to a machine tool for the machining, particularly for the machining by turning and milling, of work pieces (25) having a centric bore (251), having a tool holder (19, 22) for holding a tool (23), a work piece support (13) for supporting the work piece (25), a work piece mount (30) for fixing the work piece (25), and a drive means (33) for turning the work piece (25) about a centric rotational axis (35). In order to be able to machine work pieces (25) intended for operation at a very high rotational speeds with high precision such that balancing after machining can preferably be completely eliminated, the invention provides that the work piece support (13) comprises a mandrel (36) for attaching the work piece (25) such that a section of the mandrel (36) projects into the bore (251) on a first side (252) of the work piece (25), and that the work piece support (30) has a counter holder (30) that can be moved in the direction of the bore axis (255) of the centric bore (251) for applying a pressing force onto the work piece (25) acting in the direction of the bore axis (255) on a second side (250) positioned opposite the first side (252).
A spindle unit has a working spindle, which is mounted, so as to be rotatable about its longitudinal axis, in its own bearing housing and in which there is provided a receiver for tools for machining workpieces. Via a repositioning unit, the working spindle is repositioned automatically and controllably in relation to the bearing housing when in operation (FIG. 1).
B23C 1/12 - Machines à fraiser non conçues pour des pièces particulières ou des opérations spéciales avec une broche orientable sous différents angles, p. ex. horizontalement ou verticalement
30.
METHOD FOR MACHINING WORKPIECES ON A CUTTING MACHINE TOOL
In the case of a method for chip-removing machining of workpieces (14), in particular for making bores in workpieces (14), wherein a tool (18) is put into rotation (20) relative to the workpiece (14) and the tool (18) is moved relative to the workpiece (14) with a feed motion, the tool (18) executes an oscillating motion in the direction (z) of the feed motion relative to the workpiece (14), a settable oscillation component being imparted to the feed motion through control means.
A machine tool is provided with at least one preferably vertically aligned work spindle (22) that has a tool receiving socket (35) for tool holders (34) carrying tools (23) and has a clamping system (42) comprising a plurality of collet segments (46) that are displaceable between a radially outer clamping position, in which, by means of their lower heads (47), they clamp in a rotationally rigid manner in the work spindle (22) a tool holder (34) inserted in the tool receiving socket (35), and a radially inner initial position, in which the tool holder (34) can be inserted in and removed from the tool receiving socket (35). At least some of the lower heads (47) of the collet segments (46), when in their initial position, have such a radial spacing in relation to each other that they take hold of a tool holder (34) inserted in the tool receiving socket (35), these lower heads (47) being arranged so as to be movable radially inwards (Fig. 5).
B23B 31/26 - Mandrins de serrage caractérisés par le système de commande à distance des moyens de serrage utilisant des transmissions mécaniques dans la broche de travail
A machine tool has a work space (17) in which a device (15) for accommodating workpieces (16) to be machined is arranged. The machine tool further has a work spindle (18) for machining the workpieces (16) and a slide (34) which carries the work spindle (18) and is traversable in a longitudinal direction relative to the device (15), a respective cover (25), variable in length in the longitudinal direction (x), for the work space (17) being provided on the slide (34) on each of its sides, said cover (25) being connected with its respective first end to the slide (34) and with its respective second end to a side wall (21, 22; 51) of the work space (17). Each cover (25) variable in length has a respective rear wall (26) and a respective top (27), whereby the top (27) is connected to the rear wall (26) in a detachable, push-in, manner. A further flexible cover (31) is arranged in front of the slide (34) to protect the work space (17) at the bottom. The flexible cover (31) is variable in a direction (y) orthogonal to the longitudinal direction (x) and is partly designed as a link apron (54).
The invention relates to a spindle unit (15) comprising a working spindle (16) which is rotationally mounted about the longitudinal axis thereof (22) in a bearing housing (21), comprising a receiving element (17) for tools (18) for machining work pieces (12). When in operation, the working spindle (16) is adjusted automatically and can be controlled in relation to the bearing housing (21) by means of an adjusting unit (23).
B23Q 11/00 - Accessoires montés sur les machines-outils pour maintenir les outils ou les organes de la machine dans de bonnes conditions de travail ou pour refroidir les pièces travailléesDispositifs de sécurité spécialement combinés aux machines-outils, disposés dans ces machines ou spécialement conçus pour être utilisés en relation avec ces machines
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