序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
121 Kompakte Fräskopfeinheit EP07016314.2 2007-08-21 EP1892055B1 2009-07-01 Schrott, Rüdiger
122 MACHINING HEAD FOR MACHINE TOOL EP07792445.4 2007-08-13 EP2058083A1 2009-05-13 TATSUDA, Yoshinori, TSUDAKOMA KOGYO KABUSHIKIKAISHA

A machining head (10) for a machine tool includes a spindle unit (20) to which a tool is attachable and a support head component (30, 60) that includes an index mechanism for indexing an angular position of a spindle (21). The index mechanism includes a drive motor (33, 63) supported by a bearing (35, 65) within the housing (31a, 61) of the support head component (30, 60) and a rotary joint (37, 67) disposed concentrically with the bearing (35, 65) and the drive motor (33, 63). The bearing (35, 65) is disposed within a range occupied by the drive motor (33, 63) in an axial direction of a support shaft (32, 37b, 62, 67c), and the rotary joint (37, 67) is disposed within the drive motor (33, 63) in a radial direction thereof.

123 Mehrachsendrehkopf für eine Werkzeugmaschine EP07013655.1 2007-07-12 EP1880796B1 2009-02-25 Hoss, Dietmar; Rondé, Uwe, Dr.
124 Index table EP08151334.3 2008-02-12 EP1967321A2 2008-09-10 Katsuma, Toshifumi Mitsubishi Heavy Industries Ltd.; Hirayama, Takayoshi Mitsubishi Heavy Industries Ltd.; Masuo, Koichi Mitsubishi Heavy Industries Ltd.; Hashitani, Michiaki Mitsubishi Heavy Industries Ltd.

There is provided a built-in type index table in which a power transmitting means scarcely has backlash and, at the same time, the space and cost can be saved. The index table includes a rotary table (41) for setting a workpiece (2) for a machine tool; a rotary table shaft (42) fixedly provided on the rotary table; a driving motor mechanism (10), which is a driving source; and a planetary roller speed-reduction mechanism (20) having a sun roller (21), which is a motor output shaft of the driving motor mechanism, a ring (22) fixed to the speed-reduction mechanism, a plurality of planetary rollers (25) arranged at equal angular intervals between the sun roller and the ring in a pressurized state, and a planetary roller harness (24) that fixedly supports a plurality of planetary roller shafts pivotally supporting the planetary rollers in a rotatable manner and is fixedly provided coaxially with the rotary table shaft.

125 Mehrachsendrehkopf für eine Werkzeugmaschine EP07012221.3 2007-06-22 EP1870199A1 2007-12-26 Rondé, Uwe; Trolliet, Patrick; Hoß, Dietmar

Es wird ein Mehrachsendrehkopf für eine Werkzeugmaschine mit einer Gabel vorgeschlagen, die drehbar um eine erste Achse angeordnet ist und zwei Gabelarme aufweist. Zwischen den Gabelarmen ist eine Motorspindel drehbar um eine zweite Achse angeordnet, wobei wenigstens ein Motor für den Drehantrieb der Motorspindel in der Gabel vorgesehen ist und wenigstens ein Gabelarm einen Hohlraum zur Aufnahme des Motors aufweist. erfindungsgemäß soll die Montage und/oder Demontage der Statoreinheit (8) erleichtert werden. Dies wird erfindungsgemäß dadurch bewirkt, dass eine separat von dem Gabelarm (3, 4) montierbare, in einen Teil des Hohlraums (7) einsetzbare Statoreinheit (8) vorgesehen ist, wobei der Hohlraum (7) des Gabelarms (3, 4) so geformt ist, dass die Statoreinheit (8) an wenigstens einem Teil ihrer Umfangseitigen Mantelfläche (9) über dem neben der Statoreinheit (8) freien Teilbereich (20) des Hohlraums (7) her zugänglich ist.

126 DIRECT DRIVE MULTIPLE AXES ROTARY SPINDLE HEAD FOR MILLING MACHINE EP96919437.2 1996-06-13 EP0885081B2 2006-06-07 BERTSCHE, Richard; BERTSCHE, Richard, W.
A gearless, direct drive, multiple axes rotary head (10) for a machine tool is provided which includes a spindle (24) mounted to the rotary head (10) for rotation thereon about multiple axes and a plurality of motors (31, 92, 94) coupled to the head (10) and a spindle (24) for directly driving and controlling the rotation of the head (10) and spindle (24) about the multiple axes respectively.
127 Rundschalttisch mit Direktantrieb und Direketantrieb dafür EP02022021.6 2002-10-01 EP1300216A3 2004-08-25 Korischem, Benedict, Dr.; Hölter, Hans-Joachim; Koep, Dirk-Wolfgang

Dargestellt und beschrieben ist ein Rundschalttisch mit einem ortsfesten Gehäuse (2), mit einer in dem Gehäuse (2) drehbar gelagerten Spindel (3) und mit einem in dem Gehäuse (2) angeordneten Antriebsmotor (4), wobei der Antriebsmotor (4) einen Rotor mit mindestens einem Magneten (5) und einen Stator mit einer Wicklung (6) aufweist.

Der Rundschalttisch (1) ermöglich dadurch bei geringem erforderlichen Bauraum ein größeres Drehmoment, daß die Magnete (5) ohne Rotorgehäuse direkt auf der Spindel (3) befestigt sind und die Wicklung (6) ohne Statorgehäuse in das Gehäuse (2) des Rundschalttisches integriert ist.

128 EP0885081A4 - EP96919437 1996-06-13 EP0885081A4 1998-12-23
A gearless, direct drive, multiple axes rotary head (10) for a machine tool is provided which includes a spindle (24) mounted to the rotary head (10) for rotation thereon about multiple axes and a plurality of motors (31, 92, 94) coupled to the head (10) and a spindle (24) for directly driving and controlling the rotation of the head (10) and spindle (24) about the multiple axes respectively.
129 ROTARY TABLE WITH DIRECT DRIVE MOTOR PCT/US2007076739 2007-08-24 WO2008024962A3 2008-07-24 COLVIN JOSEPH T; WEIDMAN LLOYD; TURNER JEREMY; KESTERKE RICHARD; SOROKA DANIEL P
A rotary table (10) for a material processing machine such as a vertical milling machine utilizes direct drive motor (s) to precisely angularly position a work piece along one or more pivotal axes. The direct drive motor (s) (30) are thermally insulated from the remainder of the machine to limit misaligning thermal expansion of the components of the machine. The motors may be symmetrically attached to their respective supports (70) such that thermal expansion/contraction of the motor and surrounding components occurs symmetrically with respect to the motor to limit misalignment of the motor' s rotational axis. A motor may mount to its respective support only at a first axial end thereof such that thermal expansion of a second axial end of the motor does not adversely shift the position of the first end. Axially narrow clamps selectively secure the rotors of the motors in desired positions.
130 REVOLVING TRANSFER MACHINE PCT/CH9900083 1999-02-23 WO9943464A3 1999-10-07 BALDINI GUIDO; TREIB THOMAS
A revolving transfer machine (10) has a fixed machine frame which is configured for supporting a number of machining units (66) and which comprises at least one support (70). The inventive revolving transfer machine (10) also has a circular table (40) which turns around a vertical control axle (12) in relation to the frame. In order to create space for machining a workpiece to be arranged on the circular table (40), the support (70) is configured for mounting at least one of the machining units (66) on the side. The machine frame is characterised by a high degree of rigidity and stability. At the same time, a large volume of space is created for machining workpieces and easy access to the satellites (50), the indexing devices and the circular table (40) for the purpose of adjusting or installing the machine is guaranteed. The inventive revolving transfer machine (10) also has an extremely fast, high dynamics drive mechanism for the circular table (40) and enables the satellites to be indexed in less time but nonetheless accurately.
131 Machining head for machine tool EP12002665.3 2007-08-13 EP2500130A2 2012-09-19 Tatsuda Yoshinori

A machining head (10) for a machine tool comprises a spindle unit (20) including a spindle (21) to which a tool is attachable and a support head component (30) that supports the spindle unit (20), the support head component (30) including an index mechanism that rotates the spindle unit (20) at least about an axis line extending perpendicular to a rotary axis line of the spindle (21) in order to index an angular position of the spindle unit (20),

wherein the support head component (30) includes first and second support portions (30a, 30b) respectively including first and second support shafts (32, 37b, 38b, 39b) disposed such that axes of the first and second support shafts (32, 37b, 38b, 39b) are aligned with the rotary axis line and that the first and second support shafts (32, 37b, 38b, 39b) face each other with the spindle unit (20) interposed therebetween, wherein the index mechanism includes a drive motor (33) including a motor rotor (33a) and a motor stator (33b), the motor rotor (33a) being disposed concentrically with the support shaft (32, 37b) around the support shaft (32, 37b) within a housing (31a) of the support head component (30) and surrounding the support shaft (32, 37b), and wherein the index mechanism is disposed at one of the first and second support portions (30a, 30b).

132 Mehrachsendrehkopf für eine Werkzeugmaschine EP07013655.1 2007-07-12 EP1880796B2 2011-11-02 Hoss, Dietmar; Rondé, Uwe, Dr.
133 ANGULAR INDEXING DEVICE FOR MACHINE TOOL EP08752632 2008-05-13 EP2145725A4 2011-04-27 TATSUDA YOSHINORI
134 ANGULAR INDEXING DEVICE FOR MACHINE TOOL EP08752633 2008-05-13 EP2145722A4 2011-04-20 TATSUDA YOSHINORI
135 Antriebskopf für ein Drehfräs-Bearbeitungszentrum und Verfahren zum Betrieb eines derartigen Antriebskopfes EP10006009.4 2010-06-10 EP2260972A1 2010-12-15 Naumann, Hans J., Prof. Dr.; Robotta, Reinhard; Römer, Torsten; Mitschke, Ulf

Die Erfindung betrifft einen Antriebskopf für ein Drehfräs-Bearbeitungszentrum. Aufgabe der Erfindung ist es, hierfür eine technische Lösung zu schaffen, die schnelle, exakte und lagefeste Änderungen der Position der jeweils zu bewegenden Baugruppen ermöglicht und die gleichzeitig eine sehr exakte Einstellung der vorgegebenen Position im Bearbeitungsprozess und hohe Momente für große Zerspanungsleistungen gewährleistet. Diese Aufgabe wird dadurch gelöst, dass konzentrisch zur B-Achse (B) der Werkzeugspindel (3) ein Innenläufer-Torquemotor (13; 14) angeordnet ist, dessen Rotor (14) über einen Zwischenring (15) am Werkzeugspindelgehäuse (2) und dessen Stator (13) am Hauptgehäuse (1) des Drehfräsaggregates abgestützt ist, dass der Werkzeugspindel (3) ein separater Antriebsmotor (12) parallel zur B-Achse (B) zugeordnet ist, der am Hauptgehäuse (1) des Drehfräsaggregates abgestützt ist und der über eine Getriebestufe mit der Antriebswelle (7) der Werkzeugspindel (3) in Wirkverbindung steht und dass dem Drehfräsaggregat eine Flüssigkeitskühlung zugeordnet ist, die mehrere Temperierungskreisläufe (T) aufweist. Weiterhin wird ein Verfahren zum Betrieb eines derartigen Antriebskopfes vorgeschlagen.

136 DIRECT DRIVE TWO ROTARY AXIS SPINDLE HEAD EP08803741.1 2008-09-05 EP2205394A2 2010-07-14 COLOMBO, Roberto
It is described a direct drive two rotary axis spindle head (1) comprising a fork (5), rotatable around a first axis (B), with two arms (3, 4) accommodating between them an electric spindle (2). The electric spindle (2) is rotatable around a second axis (A) perpendicular to said first axis (B). A first direct drive electric motor (6) for the rotation of the fork (5) around said first axis (B), and at least a second direct drive electric motor (9) for the rotation of the electric spindle (2) around said second axis (A). The second motor (9) comprises a rotor (10) and a stator (11), where the stator (11) is housed in a casing (12) fixed to the outer faces (13, 14) of the fork (5), in such a way that the casing (12) and part of the rotor (10) remain on the outside of the fork (5).
137 Swivel device and grinding machine incorporating the same EP08166187.8 2008-10-09 EP2052812B1 2010-05-26 Yoritsune, Masashi
138 Index table EP08151334.3 2008-02-12 EP1967321B1 2010-04-21 Katsuma, Toshifumi Mitsubishi Heavy Industries Ltd.; Hirayama, Takayoshi Mitsubishi Heavy Industries Ltd.; Masuo, Koichi Mitsubishi Heavy Industries Ltd.; Hashitani, Michiaki Mitsubishi Heavy Industries Ltd.
139 DEVICE FOR PREVENTING BREAKAGE OF TILTING ROTARY TABLE INDEXING DEVICE EP08778004.5 2008-07-09 EP2172302A1 2010-04-07 YONENAGA, Takeshi

In a tilting table indexing device driven by a direct-drive motor, a tilting table is prevented from rotating beyond an allowable rotation range when power is shut off in an emergency, such as power outage, and thus a breakage accident of, for example, a tool or a workpiece is reliably prevented from occurring. In a tilting table indexing device (1), in which a rotary member (3) such as a table (4) is rotated within a predetermined normal rotation angle range by a direct-drive motor (9) to tilt the table (4) and in which the tilted table (4) is held by activation of a holding mechanism (10), an elastically displaceable member (11) having a pressure receiving surface (12) is provided at one of the rotary member (3) and a frame (6) of the tilting table indexing device (1), and an engaging portion (13) capable of contacting the pressure receiving surface (12) is provided at the other of the rotary member (3) and the frame (6). When the rotary shaft (5) rotates beyond the normal rotation angle range because of free rotation of the rotary member (3) in an emergency, the elastically displaceable member (11) absorbs the kinetic energy of the rotary member (3) and stops the rotary member (3) before a danger angle range.

140 ANGULAR INDEXING DEVICE FOR MACHINE TOOL EP08752633.1 2008-05-13 EP2145722A1 2010-01-20 TATSUDA, Yoshinori

[Object] To provide a large torque at a rotating shaft and to increase support rigidity of a bearing without increasing the outside diameter of a component that is built in a motor.

[Solving Means] An angular indexing apparatus for a machine tool includes a rotating shaft 40, to which a member that is rotationally driven 11 is secured; a housing 30, which surrounds the outer periphery of the rotating shaft 40 and which is mounted to and removed from the body of the machine tool; bearings B1, B2, disposed between the housing 30 and the rotating shaft 40; and driving means, provided between the housing 30 and the rotating shaft 40, and rotating the rotating shaft 40 to index an angular position. The driving means uses drive motors M1, M2, M3, each including a motor rotor and a motor stator disposed concentrically around the rotating shaft 40 in the housing 30. The plurality of the drive motors M1, M2, M3 are disposed in series so as to be separated from each other in an axial direction of the rotating shaft 40. The plurality of the bearings B1, B2 are disposed so as to be separated from each other in the axial direction. A multiple-row roller bearing capable of supporting an axial load and a radial load is used for the bearing B2 closest to the side of the member that is rotationally driven 11 among the bearings. One of the other bearings is disposed between the plurality of the drive motors M1, M2, M3.

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