Patent application number | Description | Published |
20100036519 | MACHINING PARAMETER OPTIMIZING APPARATUS, METHOD FOR OPTIMIZING MACHINING PARAMETER AND PROGRAM THEREFOR - It is an object of the present invention to provide a machining parameter optimizing apparatus deciding a tool axis attitude and a machining zone and deciding a tooling having high stiffness for any profile of a finished workpiece. | 02-11-2010 |
20100286813 | CONTROLLER FOR MACHINE TOOL AND FIVE-AXIS SIMULTANEOUS CONTROL MACHINE TOOL CONTROLLED THEREBY - It is an object of the present invention to provide a controller for a machine tool and a five axis simultaneous control machine tool controlled thereby which can improve machining accuracy in controlling a pivoting axis of the machine tool. | 11-11-2010 |
20110044778 | CONTROLLER FOR MACHINE TOOL AND FIVE-AXIS SIMULTANEOUS CONTROL MACHINE TOOL CONTROLLED THEREBY - It is an object of the present invention to provide a controller for a machine tool and a five axis simultaneous control machine tool controlled thereby which can improve the machining accuracy in machining by controlling a driving axis including a linear axis and a pivoting axis. | 02-24-2011 |
20130272812 | MACHINING CONTROL APPARATUS AND MACHINING CONTROL METHOD THEREOF - The present invention discloses a machining control apparatus capable of decreasing a machining error, comprising: a rotation velocity decision process part for deciding a rotation velocity of the rotation tool in such a way that an amplitude of vibration of the rotation tool is decreased, based on a vibration state of the rotation tool and a vibration phase of the rotation tool when the rotation tool receives the cutting resistance force, in the case that the rotation tool vibrates due to the interrupted cutting resistance force generated in the rotation tool during the interrupted cutting; and a rotation velocity control part for controlling the rotation velocity(S) of the rotation tool based on the rotation velocity decided. | 10-17-2013 |
20140012519 | DYNAMIC CHARACTERISTIC CALCULATION APPARATUS AND ITS METHOD FOR MACHINE TOOL - A dynamic characteristic calculation apparatus for a machine tool calculates dynamic characteristic of the machine tool executing an interrupted machining by moving a rotational tool relative to a workpiece. The apparatus includes a detector detecting acoustic wave generated by vibration of the rotational tool or detecting magnetic property being variable by the vibration of the rotational tool where said rotational tool is excited to vibrate, and a calculation division calculating a natural frequency f of the one or plural tool tips in a vibration system, in which the one or plural tool tips of said rotational tool is a vibration body, on a basis of a value detected by the detector. | 01-09-2014 |
Patent application number | Description | Published |
20090159026 | VARIABLE VALVE SYSTEM FOR INTERNAL COMBUSTION ENGINE AND ITS DRIVING MECHANISM - In a variable valve system for an internal combustion engine and its driving mechanism, the variable valve system comprises: a variable mechanism that revolves a control axle to change an operation characteristic of an engine valve; a projection section projected at an outer peripheral predetermined position in an axial direction of the control axle and on a tip of which a fixture section is formed; a fixture member fixed in a grasped state for the projection member via an engagement member engaged on the fixture section; a driving mechanism configured to provide a rotating force for the control axle via the fixture member; and control means (a control section) for controlling the driving mechanism in accordance with a driving state of the engine. | 06-25-2009 |
20090188454 | VARIABLE VALVE ACTUATION APPARATUS OF INTERNAL COMBUSTION ENGINE - A variable valve actuation apparatus of an internal combustion engine has a multinodular-link motion converter, to vary at least a working angle. A position of rotation of a control shaft, variably adjusting the attitude of the motion converter, is set, so that, at a peak lift during a valve opening period, an angle γ | 07-30-2009 |
20110139102 | Valve Control Apparatus for Internal Combustion Engine - A valve control apparatus includes a drive shaft; a control shaft including a control shaft main body configured to be rotationally controlled according to a state of engine, and a control eccentric shaft located eccentrically relative to a rotation center of the control shaft main body; a rocker arm swingably supported by the control eccentric shaft and configured to convert a rotational motion of the drive shaft to a swinging motion; and a swing cam configured to open/close an engine valve according to the swinging motion of rocker arm. Both ends of the control eccentric shaft are formed with fixing holes extending in a radial direction of the control eccentric shaft. The control shaft main body is formed with insertion holes passing through the control shaft main body in a radial direction of the control shaft main body. The insertion holes respectively face the fixing holes. The control eccentric shaft is fixed to the control shaft main body by bolts. The bolts pass respectively through the pair of insertion holes and are screwed respectively into the fixing holes. | 06-16-2011 |
20130220041 | VARIABLY OPERATED VALVE SYSTEM AND TIGHTENING STRUCTURE BETWEEN CONTROL SHAFT AND ACTUATOR OF VARIABLY OPERATED VALVE SYSTEM - A variably operated valve system includes: a planar section cut out an outer peripheral surface of a control shaft in order for a linkage member to be grasped from an axial direction of the control shaft; a bolt hole drilled along a diameter direction of the control shaft via an oil passage from the planar section and having a female screw formed at a position of the control shaft which is an opposite side to the planar section; and a limitation section having a convexity section disposed on either one of the linkage member and the planar section and a recess section disposed on the other of the linkage member and the planar section to be fitted into the convexity section, a fixture bolt being screwed and tightened to the bolt hole via a bolt inserting hole of the linkage member to fix the linkage member to the control shaft. | 08-29-2013 |