Rotating Work Machine Tool (e.g., Screw Machine, Lathe, Etc.) Patents (Class 483/17)
  • Patent number: 8974357
    Abstract: The invention provides a vertical turret lathe capable of preventing an inner diameter turning tool attached to a turret tool rest from interfering with a workpiece during machining of the outer diameter of the workpiece. The vertical turret lathe comprises a work table that holds a workpiece W1 and rotates, and a working head 40 having a turret tool rest 50 and capable of moving in X-axis and Z-axis directions. A tool holder 70 for holding an inner diameter turning tool T2 via hydraulic pressure is attached to a part of the tool supporting portions 60 of the turret tool rest. The automatic tool changer apparatus 100 includes a turret-type tool magazine 120 and pistons 160 and 162, which mechanically press the pins 74 and 76 of the tool holder 70 and clamp or unclamp the tool T2.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: March 10, 2015
    Assignee: Yamazaki Mazak Corporation
    Inventors: Minoru Kitayama, Naoya Tanaka, Eiji Takeuchi, Toraharu Ryuta, Hyunkoo Park
  • Patent number: 8970156
    Abstract: A path display apparatus includes a first position command acquiring unit that acquires first position command for motors, a first position feedback acquiring unit that acquires first position feedback of each of the motors, a correction data acquiring unit that acquires correction data generated for each of the motors, a second position command calculating unit that subtracts the correction data from the first position command to calculate a second position command, a second position feedback calculating unit that subtracts the correction data from the first position feedback to calculate second position feedback, a command path display unit that displays a command path of the tip point of the tool, based on the second position command; and a feedback path display unit that displays a feedback path of the tip point of the tool, based on the second position feedback.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: March 3, 2015
    Assignee: FANUC Corporation
    Inventors: Junichi Tezuka, Hajime Ogawa
  • Patent number: 8360314
    Abstract: Systems and methods of distributing, dispensing and validating game tickets provide for the use of radio frequency identifiers (RFIDS). Game ticket consumables may also be tracked with RFIDS. Ticket data such as game numbers, void if removed numbers, theme descriptions, place styles, price points and player account information can be stored to a memory of a game ticket, where the ticket is capable of transmitting the ticket data as an RF signal. Approaches also provide for the use of RFIDS in game sponsor/ticket printer facilities, ticket warehouse facilities and ticket destruction facilities.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: January 29, 2013
    Assignee: Gtech Rhode Island Corporation
    Inventors: Richard Meehan, Stephen Carney, Jennifer Seymour, Craig Fitzgerald, Richard Finocchio
  • Patent number: 8206276
    Abstract: A machine tool includes a headstock provided with a main spindle and movable in a direction different from a direction of axis of the main spindle, a tool post mounted on the headstock so as to be movable in the direction of axis of the main spindle, and a tool change unit configured to change a tool attached to the main spindle with another tool after an extremity of the main spindle has been moved to a predetermined tool change position. In this machine tool, when an extremity of the tool post is positioned in the tool change position by the movement of the headstock and also by the movement of the tool post, the tool change unit performs change of a tool attached to the tool post with another tool by the same tool change operation as that for the main spindle.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: June 26, 2012
    Assignee: Okuma Corporation
    Inventor: Makoto Yoshida
  • Patent number: 8145348
    Abstract: A tool selection method, for a machine tool, comprising the steps of identifying the maximum tip distance (D2) of a currently selected tool (141), a next designated tool (142) and an intermediate tool (143) disposed therebetween; moving a tool rest (10) in the +(plus)X-axis direction after a machining by the currently selected tool (141) is completed until the tip of the currently selected tool (141) is spaced from a workpiece (W) along the X-axis by a distance provided by adding a clearance distance (E) to a difference between the maximum tip distance (D2) and the tip distance (D3) of the currently selected tool (141); moving the tool rest (10) in the +(plus)Y-axis direction until the tip of the next designated tool (142) is aligned with the rotation center axis (12a) of the workpiece (W) in the X-axis direction; and moving the tool rest (10) in the ?(minus)X-axis direction.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: March 27, 2012
    Assignee: Citizen Holdings Co., Ltd.
    Inventor: Yutaka Shibui
  • Patent number: 8028904
    Abstract: Systems and methods of distributing, dispensing and validating game tickets provide for the use of radio frequency identifiers (RFIDS). Game ticket consumables may also be tracked with RFIDS. Ticket data such as game numbers, void if removed numbers, theme descriptions, place styles, price points and player account information can be stored to a memory of a game ticket, where the ticket is capable of transmitting the ticket data as an RF signal. Approaches also provide for the use of RFIDS in game sponsor/ticket printer facilities, ticket warehouse facilities and ticket destruction facilities.
    Type: Grant
    Filed: June 1, 2009
    Date of Patent: October 4, 2011
    Assignee: Gtech Rhode Island Corporation
    Inventors: Richard Meehan, Stephen Carney, Jennifer Seymour, Craig Fitzgerald, Richard Finocchio
  • Publication number: 20100137116
    Abstract: A quick-positioning screw assembly machining method includes the step of attaching a quick-positioning screw assembly to a chucking device of a machine tool and then driving the chucking device to rotate the quick-positioning screw assembly, the step of moving a ramming member toward a relatively thinner front extension cap wall of a cap during rotation of the quick-positioning screw assembly to have the relatively thinner front extension cap wall of the cap be bent radially inwards into contact with a periphery of a mounting socket between two outside annular flanges of the mounting socket, and the step of stopping the rotation of the chucking device and removing the processed quick-positioning screw assembly from the machine tool.
    Type: Application
    Filed: December 3, 2008
    Publication date: June 3, 2010
    Applicant: HANWIT PRECISION INDUSTRIES LTD.
    Inventor: Ming-Chung Chiu
  • Patent number: 7657356
    Abstract: An acceleration detection unit for detecting acceleration is mounted on a driven body. When a previous block is a positioning command, the system waits till the detected value of acceleration detected by the acceleration detection unit becomes equal to or less than a set value ?s after the distribution of the movement command of the positioning command is ended. If the detected value of acceleration becomes equal to or less than the set value ?s, the distribution of the movement command of the next block is started. Because the cutting feed, etc., is started after the detected value of acceleration has become equal to or less than the set value ?s and the vibrations stopped, machining can be conducted with high accuracy.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: February 2, 2010
    Assignee: Fanuc, Ltd.
    Inventors: Yasusuke Iwashita, Tadashi Okita, Hiroyuki Kawamura, Satoshi Ikai
  • Patent number: 7617856
    Abstract: An apparatus for the manufacture of corrugated board has a housing, in which the following are accommodated: a corrugating roller unit for the production of a corrugated web out of a material web, comprising corrugating rollers adjacent to each other, a gluing device for applying glue to the corrugated web and a pressing device for pressing the corrugated web, to which glue has been applied, to a liner. Outside the housing, a corrugating roller unit loader is arranged with a plurality of corrugating roller unit holders. These each serve to accommodate one corrugating roller unit. The corrugating roller unit loader is displaceable with respect to the housing and guided between loader positions such that in each of the loader positions, a loader guiding portion of one of the corrugating roller unit holders aligns with a housing guiding portion to move a corrugating roller unit, which is accommodated in the corrugating roller unit holder, between a loader holding position and a housing operating position.
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: November 17, 2009
    Assignee: BHS Corrugated Maschinen- und Anlagenbau GmbH
    Inventor: Alfons Gnan
  • Patent number: 6949056
    Abstract: An improved machine tool having a support structure (16), a spindle (18) rotatably supported by the structure, the spindle adapted for engagement with a workpiece (56), the spindle operatively arranged to selectively rotate in an annular A-axis (19) and about a linear Z-axis (20), a tool frame (25) supported by the structure, the tool frame having an array of individual tool-holding stations adapted for engagement with a tool (49), an actuating mechanism (24), the actuating mechanism operatively arranged to selectively provide movement of the workpiece in the spindle relative to the tool in the tool frame in the Z-axis, in a linear Y-axis (21) that is perpendicular to the Z-axis, and in a linear X-axis (22) that is perpendicular to both the Z-axis and the Y-axis, the position of the stations in the array defined by at least an X-axis coordinate and a Y-axis coordinate, at least two of the stations in the array positioned such that the two stations have neither the same X-axis coordinate nor the same Y-axis co
    Type: Grant
    Filed: March 4, 2003
    Date of Patent: September 27, 2005
    Assignee: Hardinge Inc.
    Inventors: Daniel P. Soroka, Terrance Sheehan, Kevin L. Wasson, J. Patrick Ervin