Plural Operators Or Input Drives Patents (Class 74/825)
  • Publication number: 20140083249
    Abstract: Motorized rotational drive system (8) for rotating a framework about an axis of rotation, preferably a horizontal axis of rotation, for a solar collector tracker support system, said motorized system comprising: two ring gear sectors (80) extending in two planes orthogonal to the axis of rotation and provided with means of attachment to said framework; a transmission shaft (82) supporting two pinions (81) in mesh with the corresponding ring gear sectors (80) for synchronized rotation of said ring gear sectors (80); and a motorized drive means for driving the rotation of said transmission shaft (82).
    Type: Application
    Filed: May 30, 2012
    Publication date: March 27, 2014
    Inventors: Yacin Michotte De Welle, Madyan Michotte De Welle
  • Patent number: 8443698
    Abstract: A rotary indexing table having a plate which has drivers engaging into a driving groove of a barrel cam is provided. The plate is drivable via a barrel cam to make a rotary movement about an axis of rotation which is in turn drivable by a motor to make a first rotary movement about its longitudinal axis. An additional drive element connected drive-wise to the barrel cam is provided which is coupled to the plate via at least one coupling element.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: May 21, 2013
    Assignee: Weiss GmbH Sondermaschinentechnik Buchen
    Inventor: Stanislav Cafuta
  • Patent number: 8261631
    Abstract: A rotary machine may have multiple stations that have a linear motion operated by a cam and a rotational motion operated by individual motors mounted on each station. Each station may perform a motion profile that is proportional to the machine's central axis rotation or, in some cases, independent of the central axis rotation. In some embodiments, each station may rotate to orient a part prior to processing. In one embodiment, the cam driven linear motion may enable a station to lower for loading and unloading, then raise for processing. The rotary machine may have various mechanisms at each station for processing a part. One such embodiment is a rotary machine that may be outfitted with compound dispensing mechanisms at each station.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: September 11, 2012
    Assignee: Computrol, Inc.
    Inventors: William W. Weil, Scott J. Woolley, Ian J. Buckley, James N. McBride, Bert Johansson, Harley S. Crabtree
  • Patent number: 8186245
    Abstract: A mechanical device for transmitting a torque so as to generate a multi-degree-of-freedom rotation is provided. The mechanical device is used for clipping specimens during a vacuum sputtering process. The mechanical device includes an immovable frame, a first and a second shafts and a first and a second connecting elements. The immovable frame fastens the mechanical device, and includes a first hole and a first sleeve, which is disposed in the first hole and has a first transmission element. The first shaft is disposed inside the first hole and the first sleeve, and has a second hole. The second shaft is disposed in the second hole, and is perpendicular to the first shaft.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: May 29, 2012
    Assignee: National Applied Research Laboratories
    Inventors: Nien-Tsu Chen, Hung-Yu Peng, Jyh-Shin Chen, Chi-Hung Huang
  • Publication number: 20110126669
    Abstract: A rotary mechanism of a machine tool (driving device) includes a first motor for carrying out rotary driving and positioning of a workpiece support (rotary stacking-receiving die assembly), and second motors for supplementing rotation of the rotary stacking-receiving die assembly. The stop positioning accuracy of the rotary stacking-receiving die assembly due to the second motors is lower than the stop positioning accuracy of the rotary stacking-receiving die assembly due to the first motor.
    Type: Application
    Filed: November 23, 2010
    Publication date: June 2, 2011
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Toshiyuki TANAKA, Yoshitaka Aritomo, Masafumi Saito
  • Patent number: 7784380
    Abstract: The invention concerns a drive spindle (1) for the main drive of a rolling stand, which has: a first shaft (3) for transmitting torque from a drive motor (2) to a coupling element, especially to a multiple spline profile, and a second shaft (5) for transmitting the torque from the coupling element, especially the multiple spline profile, via a swivel joint (4) to a roll (6) of the rolling stand, wherein the swivel joint (4) has a wobbler (7), which is rotationally rigidly connected with the roll (6), and a second spindle head (8), which is rotationally rigidly connected with the second shaft (5), and wherein the rotational connection between the wobbler (7) and the spindle head (8) is produced by sliding bearings and a journal (9), which is rotationally rigidly connected with the spindle head (8) but is supported in a way that allows an angle of inclination (?) between the axis of rotation (10) of the roll (6) and the axis of rotation (11) of the second shaft (5).
    Type: Grant
    Filed: April 10, 2006
    Date of Patent: August 31, 2010
    Assignee: SMS Siemag Aktiengesellschaft
    Inventors: Maik Berger, Achim Klein, Florian Lindner, Peter Rainer
  • Publication number: 20100126308
    Abstract: An angular indexing apparatus for a machine tool includes a rotating shaft, to which a rotationally driven member is secured; a removable housing surrounding the outer periphery of the rotating shaft; bearings disposed between the housing and the rotating shaft and separated from each other in the axial direction of the rotating shaft; and driving means, provided between the housing and the rotating shaft, rotating the rotating shaft to index an angular position. The driving means uses drive motors, each including a motor rotor and a motor stator disposed concentrically around the rotating shaft, and separated from each other in the axial direction of the rotating shaft. A multiple-row roller bearing capable of supporting an axial load and a radial load is used for the bearing closest to the side of the rotationally driven member.
    Type: Application
    Filed: May 13, 2008
    Publication date: May 27, 2010
    Inventor: Yoshinori Tatsuda
  • Patent number: 7674217
    Abstract: The present invention provides a machine tool with a spindle chuck replacing mechanism which is simply configured to enable a reduction in time for work replacement without the need to sense the rotation speed of a spindle chuck or the like. The machine tool includes a pre-rotation-transmission mechanism 7 transmits rotation of a spindle motor 4, via a path different from a chuck coupling portion 3a of a spindle 3, to a spindle chuck 5 placed in a processing position P1 and not coupled the chuck coupling portion 3a. The pre-rotation-transmission mechanism 7 makes a difference in rotation speed between the spindle chuck 5 and the spindle 3. The pre-rotation-transmission mechanism 7 has a speed difference absorbing mechanism 23 that absorbs the difference in rotation speed with the spindle chuck 5 coupled to the chuck coupling portion 3a.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: March 9, 2010
    Assignee: Murata Machinery, Ltd.
    Inventor: Hidetsugu Kawai
  • Patent number: 7555970
    Abstract: A system used in a remotely controlled firearm device includes a circular gear and two worm gears. The worm gears engage the outer diameter of the circular gear and rotate synchronously to rotate the circular gear to align the firearm device with a target. Once the firearm device is aligned, the circular gear is locked into a fixed position that does not have any hysteresis by rotating the two worm gears asynchronously.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: July 7, 2009
    Assignee: Precision Remotes, Inc.
    Inventors: Graham Hawkes, Eric Hobson
  • Patent number: 6170358
    Abstract: An indexing mechanism is provided to enable discrete angular displacement of a first body 10 relative to a second body 12. An intermediate body 22 is provided, and is rotatable relative to both the first and second bodies 10,12. Mutually engageable detent elements on the first and intermediate 10,22, and intermediate and second 22,12 bodies, provide indexing of the first body 10 relative to the intermediate body 22 and the intermediate body relative to the second body 12 respectively. The angular separations of adjacent indexed positions provided by the first and second sets of detent elements differ such that the first body 10 is indexable relative to the second body 12 in finer indexing increments than are provided by either the first or second detent elements individually.
    Type: Grant
    Filed: March 11, 1999
    Date of Patent: January 9, 2001
    Assignee: Reinshaw PLC
    Inventors: Stephen P Hunter, Colin M Felgate
  • Patent number: 6098485
    Abstract: A high resolution actuator is provided which can be used in extreme environments, e.g., at extremely low temperatures. The actuator uses electromagnetic forces to actuate levers which then cause rotation of a lead screw. The actuator uses very small gaps in the magnetic circuit to achieve a high force with a small input power.
    Type: Grant
    Filed: August 27, 1998
    Date of Patent: August 8, 2000
    Assignee: ThermoTrex Corporation
    Inventor: Donald G. Bruns
  • Patent number: 6003409
    Abstract: Two separate drive systems for driving a rotary table about an axis of rotation relative to a support member within a predeterminable angular segment. The first drive system can move the rotary table into a starting position and the second drive system is a linear one and has a play-free pre-loaded ball-and-screw spindle drive by means of which the movement of the rotary table is performed within the predeterminable angular segment. The linear drive system can be coupled and uncoupled free from play to and from the rotary table by means of a clamping system, with the linear drive system being connected to the support member and to the clamping system with two play-free joints. A rotary measuring system is mounted at the axis of table rotation to ascertain the table's current angle of rotation.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: December 21, 1999
    Assignee: Klingelnberg Soehne GmbH
    Inventors: Harald Lamsfuss, Norbert Kaesler, Klaus Ozdyk
  • Patent number: 5201249
    Abstract: A turntable for selectively accommodating different types of workpieces in which the system is designed for combining two turntables into one for handling two different workpieces which are rotated by two different motors. Preferably, one of the motors is connected to one of the tables for rotating the table continuously at a slow speed for treating large parts. The turntable is adapted to be selectively arranged for a second motor to drive a second table at incremental positions so as to index smaller parts for treatment. One drive shaft of the two motors is located within the other drive shaft which is hollow.
    Type: Grant
    Filed: February 25, 1992
    Date of Patent: April 13, 1993
    Assignee: Progressive Blasting Systems
    Inventor: Bruce A. Sterenberg
  • Patent number: 4785513
    Abstract: A compound turret for machine tools such as latches or the like having rotating and non-rotating tooling turrets mounted on a single housing. The compound turret includes a primary drive and a secondary drive. The primary drive includes a compound turret indexing unit operable to index the rotating and non-rotating tooling turrets into the turret operating and turret storage positions. The compound turret indexing unit consists of a harmonic drive that enables the operator to incrementally vary the turret operating position. The harmonic drive achieves high reduction ratios in a single stage thus eliminating the cumbersome gear systems usually implemented to achieve the reduction ratios required. The primary drive further includes a non-rotating tool indexing unit. The non-rotating tool indexing unit is operable to index the non-rotating tooling. The non-rotating tool indexing unit consists of a harmonic drive unit similar to the compound turret indexing unit.
    Type: Grant
    Filed: December 16, 1986
    Date of Patent: November 22, 1988
    Assignee: Hardinge Brothers
    Inventors: Richard C. Lee, Ivan R. Brown, Kamalakar K. Rao, Joseph P. Waldron
  • Patent number: 4631981
    Abstract: A machine tool having a tool spindle rotatable about a horizontal axis provided with first and second tool magazines and first and second tool transfer devices. The first tool magazine removably stores a plurality of small diameter tools, with the axes of the small diameter tools extending horizontally. The first tool transfer device transfers the small diameter tools between the first tool magazine and the tool spindle. The second tool magazine is installed on the floor at one side of a column of the machine tool in a horizontal direction perpendicular to the tool spindle and removably stores a plurality of large diameter tools, with the axes of the large diameter tools extending vertically. The second tool magazine is provided with a turnover mechanism, which pivotally moves a large diameter tool indexed to a large tool removal position so as to lay the large diameter tool horizontally in parallel relation with the tool spindle.
    Type: Grant
    Filed: November 21, 1984
    Date of Patent: December 30, 1986
    Assignee: Toyoda Koki Kabushiki Kaisha
    Inventors: Noboru Kato, Yasuhiro Hattori
  • Patent number: 4501999
    Abstract: During operation of a machine tool, a motor 14 driving a spindle 17 holding a tool 18 is operated at a commanded speed by a speed control system in accordance with a speed command signal VCMD with the feedback of an actual speed signal TSA. As a stopping command ORCM is issued for stopping the spindle, the spindle is decelerated to a predetermined speed in response to a reference signal output from a constant voltage generating circuit 33. After the deceleration of the spindle to the predetermined speed, as the rotational position of the spindle comes into a region within from a predetermined position, a position offset signal PS', which smoothly crosses the zero level at the position at which the spindle is to be stopped, and which is generated from two signals e.sub.1 and e.sub.2 from a resolver connected to the spindle.
    Type: Grant
    Filed: July 27, 1982
    Date of Patent: February 26, 1985
    Assignee: Fanuc Ltd
    Inventors: Yoshinori Kohzai, Yoshiki Fujioka, Naoto Ota
  • Patent number: 4499792
    Abstract: An apparatus for angularly positioning a rotary member such as turn table, etc. by employing two separate motors. First motor is connected to drive the rotary member in a work operation and second servo motor is connected to drive the rotary member in a servo angular positioning movement. A power transmission mechanism is connected with the first motor to rotate the rotary member in the work operation and a coupling mechanism including a clutch therein is connected with the second motor to rotate the rotary member in the servo movement. A first detector is provided to detect a predetermined angular reference position of the clutch and a second detector is disposed to detect a predetermined reference position of the rotary member. Upon detection of the predetermined reference position of the rotary member, a locking device is actuated to stop the rotary member at the predetermined reference position and then the clutch is brought into engagement.
    Type: Grant
    Filed: June 22, 1982
    Date of Patent: February 19, 1985
    Assignee: Kabushiki Kaisha Komatsu Seisakusho
    Inventor: Toshiyuki Tanabe
  • Patent number: 4250761
    Abstract: In computerized tomographic apparatus having an intermittent rotational motion the scanning time can be reduced by increasing the rotation speed. However this can result in excessive forces being transmitted to the stationary mainframe of the equipment. The invention reduces that problem by balancing the forces of rotation at least in part by appropriately placed counter masses. In one embodiment the counter masses rotate and properly balance the forces. In another embodiment they move linearly and delay the application of the forces to the mainframe and transmit the delayed forces over a longer period.
    Type: Grant
    Filed: March 27, 1978
    Date of Patent: February 17, 1981
    Assignee: E M I Limited
    Inventor: James A. Lodge
  • Patent number: 4211512
    Abstract: A rotary table is driven by a pair of perpendicularly disposed linear slides which are each driven by a ballscrew drive. One of the linear slides is mounted on the movable member of the other linear slide and is coupled to the rotary table by a crank stud. The linear slides are driven at speeds which vary in accordance with the sine and cosine of the table angle to translate the linear slide motion into rotary motion.
    Type: Grant
    Filed: December 20, 1978
    Date of Patent: July 8, 1980
    Assignee: Kearney & Trecker Corporation
    Inventor: Frank Zankl
  • Patent number: 4173905
    Abstract: A change-speed gearbox has coaxial input and output shafts. Five intermediate shafts are equi-spaced around the input shaft and each has two gears fixed thereto, one of which meshes with a common gear on the input shaft, the intermediate shafts being movable axially.Five gears of different diameters are fixed to the output shaft around which five secondary shafts are carried by a rotatable cage. The five secondary shafts each have two gears fixed thereto, one of which meshes with a different one of the gears on the output shaft.Any one of a possible twenty five gear ratios between the input and output shafts may be obtained by rotating the cage until a selected one of the secondary shafts is in the same radial plane as a selected one of the intermediate shafts, that intermediate shaft then being moved axially to bring the second gear thereon into mesh with the second gear on the selected secondary shaft.
    Type: Grant
    Filed: June 17, 1977
    Date of Patent: November 13, 1979
    Assignee: Masson Scott Thrissell Engineering, Ltd.
    Inventors: Graham A. B. Byrt, Douglas E. Riddler