Including Rotating And/or Locking Means Patents (Class 29/48.5R)
  • Publication number: 20090133239
    Abstract: A turret lathe for machining a workpiece held by a spindle, the turret lathe comprising: a turret tool post having tool holding faces; a sensor for measuring dimensions of the workpiece; and a support strut which is mounted on one of the tool holding faces, holds the sensor and extends and shortens a sensor distance which is a distance between the one of the tool holding faces and the sensor in a radial direction of the turret tool post, wherein, while the sensor distance is shortened, a length of the support strut in the radial direction is such that the support strut and the sensor do not interfere with another structural element of the turret lathe when the turret tool post rotates.
    Type: Application
    Filed: November 17, 2008
    Publication date: May 28, 2009
    Inventor: Makoto Tanaka
  • Patent number: 6385831
    Abstract: A workpiece table, provided for a machine tool, is movable back and forth between two end positions and has for this purpose a rotational drive which has a gear part joined to the workpiece table for rotation thereof, a toothed rack in engagement therewith, as well as a medium-actuated shift drive for displacement of the toothed rack, which thereby performs a linear stroke motion, delimited by stops, between two end locations corresponding to the end positions of the workpiece table. Provided on the workpiece table is a mechanism which acts upon the toothed rack with a higher feed force at the beginning of the linear stroke movement than during the remainder of the linear stroke.
    Type: Grant
    Filed: March 26, 1997
    Date of Patent: May 14, 2002
    Inventor: Peter Grund