| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 41 | Direct drive multiple axes rotary spindle head for milling machine | US489892 | 1995-06-13 | US5584621A | 1996-12-17 | Richard Bertsche; Richard W. Bertsche |
| A gearless, direct drive, multiple axes rotary head for a machine tool is provided which includes a spindle mounted to the rotary head for rotation thereon about multiple axes and a plurality of motors coupled to the head and spindle for directly driving and controlling the rotation the head and spindle about the multiple axes respectively. | ||||||
| 42 | Angle indexing device for a machine tool | JP2008540991 | 2007-10-23 | JP5201681B2 | 2013-06-05 | 好教 辰田 |
| 43 | Indexing device for a machine tool | JP2007175080 | 2007-07-03 | JP5081513B2 | 2012-11-28 | 好教 辰田 |
| 44 | Swivel device and cylindrical grinding machine having the same | JP2007276508 | 2007-10-24 | JP2009101480A | 2009-05-14 | YORITSUNE MASASHI |
| <P>PROBLEM TO BE SOLVED: To provide a swivel device enabling the position of a grinding wheel spindle to be lowered and making a swing base hard to be inclined by a grinding resistance and also provide a cylindrical grinding machine having the swing device. <P>SOLUTION: In this swivel device 20, the swivel base 23 provided with a plurality of tool spindles 25, 26 thereon is mounted on a support base 21 to be turnable about a swivel shaft 22. An annular space portion 24a divided by a plane S2 including the rotating centers of the tool shafts is formed between the swivel base and the support base. A direct drive motor 52 swingably driving the swing base is disposed in the annular space portion. <P>COPYRIGHT: (C)2009,JPO&INPIT | ||||||
| 45 | Indexing device for machine tool | JP2007175080 | 2007-07-03 | JP2009012102A | 2009-01-22 | TATSUTA YOSHINORI |
| PROBLEM TO BE SOLVED: To easily connect and disconnect a wire between a stator of a DD motor built into a spindle head of a machine tool such as a five-axis machining tool and a machine tool body. SOLUTION: An indexing device for a machine tool includes: a rotary shaft for fixing a target member to be rotarily driven to its one end; a housing surrounding the outside of the rotary shaft; a bearing between the housing and the rotary shaft; and a driving means comprising a rotor and a stator provided around the rotary shaft, has the stator fixed to the housing and the rotor fixed to the rotary shaft. The housing comprises a casing member opposite to the target member for fixing the stator and a fixing member at the target member side for accommodating the bearing. The casing member is coupled to the fixing member. The rotary shaft, the bearing, the rotor and the fixing member are coupled to each other to constitute a built-in unit 22. The casing member and the stator are coupled to each other and in addition a stator cable is led out from the opposite side to the target member toward the fixing member to constitute an outer unit 21. The built-in unit is coupled to the outer unit so that it can be put in/out. COPYRIGHT: (C)2009,JPO&INPIT | ||||||
| 46 | Angular indexing apparatus for machine tool | US12598978 | 2008-05-13 | US08519587B2 | 2013-08-27 | Yoshinori Tatsuda |
| An angular indexing apparatus for a machine tool includes a rotating shaft to which a rotationally driven member is secured; a housing, surrounding the outer periphery of the rotating shaft and mounted to and removed from the body of the machine tool; bearings disposed between the housing and the rotating shaft, and driving means disposed between the housing and the rotating shaft and rotating the rotating shaft to index an angular position. The driving means includes drive motors, each including a motor rotor and a motor stator concentrically disposed around the rotating shaft in the housing. The housing has wiring holes in a thick-walled internal portion of an outer cylinder surrounding the outer periphery of the rotating shaft. The wiring holes are provided along an axial direction of the rotating shaft. The wiring holes receive at least upstream portions in entire lengths in a drawing-out direction of cables connected to the driving motors. | ||||||
| 47 | MACHINE TOOL | US13819075 | 2011-08-29 | US20130216323A1 | 2013-08-22 | Matthias Reck; Frank Dolze; Karl Robert Hofmeister; Patrick Gunsch; Erwin Sowa; Frank Wesp |
| An automatic machine tool, particularly for producing a dental prosthesis of exact three-dimensional shape, includes a machining unit (200), a workpiece feed unit (300), a tool feed unit (400) and an operating and control unit. The machining unit (200) includes a machining tool (430) that is displaceable in three spatial directions and has a cardanic workpiece holder receptacle (210) that can be pivoted about two axes, wherein the workpiece holder receptacle (210) is arranged vertically and the machining of the workpiece is carried out in vertical arrangement so as to allow the dropping of chips. | ||||||
| 48 | INDEXING OF A MACHINE TOOL TURRET | US13641377 | 2011-04-24 | US20130025408A1 | 2013-01-31 | Marco Vettori |
| The present invention relates to a system for indexing a turret of a multi-spindle machine tool. The system includes: a turret designed to rotate about an axis; and a turret drive mechanism. The drive mechanism is designed to index the turret in order to position the turret angularly in a free manner while rotating about said axis, and the drive mechanism is designed to lock the turret in this position. | ||||||
| 49 | MACHINING HEAD FOR MACHINE TOOL | US12438406 | 2007-08-13 | US20120121356A1 | 2012-05-17 | Yoshinori Tatsuda |
| 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. | ||||||
| 50 | ROTARY SPINDLE HEAD WITH GEAR REDUCER | US12945574 | 2010-11-12 | US20120020752A1 | 2012-01-26 | Feng-Ming Ou; Yu-Hsi Hsing; Hsi-Hung Hsiao; Ching-Yuan Lin |
| A rotary spindle head with gear reducer is provided, which comprises a rotary spindle unit, a fork-shaped type spindle base and a driving unit. The fork-shaped spindle base is for linking up the rotary spindle unit with a machine tool, and the driving unit comprises a torque motor and a gear reducer which are sited coaxially on the fork-shaped spindle base. The gear reducer is connected to the rotary spindle unit to drive and rotate the rotary spindle unit in the fork-shaped spindle base. The gear reducer is designed to lower decelerating rate. Besides, the input and output of the gear reducer are coaxial design, the torque of torque motor could be magnified to several times and maintain higher rotational speed to do the high speed light cutting and high torque heavy cutting work. | ||||||
| 51 | Swivel spindle head with gear device driven by multiple torque motors | US12616608 | 2009-11-11 | US07909550B1 | 2011-03-22 | Chin-Mou Hsu; Ching-Yuan Lin; En-Sheng Chang; Shih-Yen Chung |
| A swivel spindle head with gear device driven by multiple torque motors is disclosed, which comprises: a tool spindle, having a first shaft and a second shaft being radially disposed at two opposite sides of the tool spindle while sharing a common axial line; a plurality of torque motors, radially disposed at a side of the tool spindle; and a reduction gear set, radially disposed at a side of the tool spindle opposite to the plural torque motors, composed of a plurality of driving gears and a driven gear; wherein the amount of the plural driving gears is the same as that of the plural torque motors while enabling each of the plural driving gears to connect with a rotor shaft of its corresponding torque motor, and the same time, connecting the driven gear on the second shaft of the tool spindle. | ||||||
| 52 | BREAKAGE PREVENTING DEVICE FOR TILTING TABLE INDEXING DEVICE | US12664495 | 2008-07-09 | US20100176545A1 | 2010-07-15 | Takeshi Yonenaga |
| 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. | ||||||
| 53 | Pivot Bearing Device, Particularly for a Rotating circular Table of a Machine Tool | US11914022 | 2006-05-10 | US20080191570A1 | 2008-08-14 | Richard Negele; Thomas Dittenhofer; Martin Schreiber |
| A pivot bearing device, particularly for a rotating circular table of a machine tool is provided, and includes a first device part, which is to be connected to an element that is to be rotatably mounted, particularly to the circular table, and a second fixed device part. The device parts are connected via at least one antifriction bearing upon which an axial force acts. A magnet device (21), which acts between the first and second device parts (2, 3), is provided for generating a compensating force (Fk) oriented in essentially the opposite direction to the axial force (Fa). | ||||||
| 54 | Compact cutting head for machining workpieces | US11894700 | 2007-08-21 | US20080078075A1 | 2008-04-03 | Rudiger Schrott |
| A milling machine (1) for the machining of large components includes a milling head (9) which includes a support beam (8) which is movable along a longitudinal axis (Z); a pivot body (14) which is supported and guided by the support beam (8) by way of a curved guide arrangement (36) so as to be pivotable about a first pivot axis (B) which extends normal to the longitudinal axis (Z) and a motor milling spindle (11) which is supported on the pivot body (14) so as to be pivotable about a second pivot axis (A) which extends normal to the first pivot axis (B). The rotation of the pivot body (14) and of the milling spindle (11) is controlled by drive arrangements (37, 50) assigned to the pivot axis (A, B). The curved guide arrangement (36) includes guide carriages (34) attached to the support beam (8) and a circular arc segment-shaped guide track (32) which is attached to the pivot body (14) and which provide for pivot range about the first pivot axis (B) of at least 180°. A cavity (31) provided in the pivot body (14) for the accommodation of the milling spindle (11) provides for a pivot range of at least about 180° about the second pivot axis (A). The milling head (9) is compact and light-weight in its design and has a relatively small unobtrusive contour whereby the manufacture of complex surfaces is made possible with high quality and a relatively short machining time. | ||||||
| 55 | Rotary indexing table driven by an induction motor | US11235681 | 2005-09-26 | US20070137433A1 | 2007-06-21 | Richard Amendolea; Rick Steinkamp |
| The present invention is a rotary indexing table driven by an induction motor. The rotary indexing table includes a rotatable work supporting platform, an AC induction motor including a motor shaft coupled to the rotatable work supporting platform; and a controller operatively coupled to the AC induction motor. The AC induction motor is equipped with a high resolution positional feedback device. The high-resolution positional feedback device may be an encoder or a resolver. The controller is configured to drive the AC induction motor in a direct drive manner. The high-resolution positional feedback device is operatively coupled to the controller, and the controller is configured to filter a signal provided by the high-resolution positional feedback device. The signal provided by the high-resolution positional feedback device may be a square wave or a sine wave. The present invention is also directed to a method precisely driving and positioning a rotary indexing table. | ||||||
| 56 | Mobile milling head with torque motor drive | US11519510 | 2006-09-11 | US20070059116A1 | 2007-03-15 | Bernhard Brunemann |
| A milling head (16) for a milling machine (1) arranged for machining large-size workpieces comprises a fork 18, which is rotatably arranged around a first axis (C) and demonstrates a pair of fork arms (21, 22), which are separated from one another, a spindle device (23), which is arranged between the fork arms and rotatable around a second axis A, a first torque motor (42), which is coupled to the fork 18 for directly driving and controlling of the rotation of the fork around the first axis (C), and a second torque motor (57) for driving and controlling the rotation of the spindle around the second axis (A), said second torque motor being coupled to the spindle device (23) by means of a one-stage toothed gearing (61), which is mechanically clamped free of backlash. The configuration according to the invention is arranged to achieve high torque with high dynamic stiffness and small interference contour of the milling head (16). | ||||||
| 57 | Rotary indexing machine | US10727499 | 2003-12-05 | US20040107805A1 | 2004-06-10 | Guido Baldini; Thomas Treib |
| A rotary indexing machine (10) has a fixed machine frame, which is designed for holding a multiplicity of machining units (66) and comprises at least one support (70). Furthermore, the rotary indexing machine (10) has a rotary table (40) rotatable relative to the machine frame about a vertical indexing axis (12). To create free space for the machining of a workpiece to be arranged on the rotary table (40), the support (70) is designed for the lateral attachment of at least one of the machining units (66). The machine frame is characterized by high rigidity and stability, a large free space for machining workpieces being created at the same time in the region of the rotary table (40), and good accessibility of the satellites (50), the indexing devices and the rotary table (40) being ensured for the adjustment or setting-up of the machine. Furthermore, the rotary indexing machine (10) according to the invention has an extremely fast and highly dynamic drive for the rotary table (40) and permits timesaving and nonetheless accurate indexing of the satellites. | ||||||
| 58 | 공작기계용 각도 분할 장치 | KR1020097023144 | 2008-05-13 | KR1020100016257A | 2010-02-12 | 다쓰다요시노리 |
| [PROBLEMS] An angular indexing device for a machine tool, in which large torque can be obtained on a rotating shaft without an increase in the outer diameter of a component incorporating a motor and which can be produced easily and at low cost. [MEANS FOR SOLVING PROBLEMS] The angular indexing device for a machine tool has a rotating shaft (40) to which a member (11) to be rotated is fixed, a housing (30) surrounding the outer periphery of the rotating shaft (40) and attached to and detached from a machine tool body, bearings (B1, B2) placed between the housing (30) and the rotating shaft (40), and drive means placed between the housing (30) and the rotating shaft (40) and rotating the rotating shaft (40) to index angular positions. Drive motors (M1, M2, M3) are used as the drive means, and the motors (M1, M2, M3) have motor rotors and motor stators arranged in the housing (30) so as to be concentric with the rotating shaft (40). The drive motors (M1, M2, M3) are serially arranged so as to be spaced in the direction of the axis of the rotating shaft (40), and at least either of the housing (30) and the rotating shaft (40) is connected so that it can be split into multiple sections in the direction of the axis of the rotating shaft (40). The housing (30) and the rotating shaft (40) are splitably connected to the corresponding drive motors (M1, M2, M3). | ||||||
| 59 | Angle indexing device for a machine tool | JP2007128331 | 2007-05-14 | JP5057845B2 | 2012-10-24 | 好教 辰田 |
| [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. | ||||||
| 60 | Angle indexing device for a machine tool | JP2007128327 | 2007-05-14 | JP5057844B2 | 2012-10-24 | 好教 辰田 |
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