| MORI SEIKI CO., LTD. Patent applications |
| Patent application number | Title | Published |
|---|
| 20120121353 | Machine Tool - A machine tool re-machines a workpiece after positioning drive motors, a hob and the workpiece by stopping the drive motors with the rotational positions of the drive motors, the hob and the workpiece corresponding to their respective zero positions. For this purpose, a drive control section recognizes, based on the rotational-speed ratio of the drive motor corresponding to the hob and the hob and/or the rotational-speed ratio of the drive motor corresponding to the workpiece to the workpiece, and detection signals from detection sensors detecting that the rotational positions of the drive motors are at their respective zero positions, detections signals when the rotational positions of the drive motors and the rotational positions of the hob and the workpiece correspond to their respective zero positions, and stops the drive motors with the rotational positions of the drive motors, the hob and the workpiece corresponding to their respective zero positions. | 05-17-2012 |
| 20120096999 | COMPOUND MACHINING METHOD AND APPARATUS - A method of machining a workpiece may include continuously rotating the workpiece, continuously rotating a tool having at least one cutting surface, and positioning the tool relative to the workpiece so that the at least one cutting surface engages the workpiece at a first discrete location at a periphery of the workpiece. The method may further include continuing to rotate the workpiece and the tool so that the at least one cutting surface engages a second discrete location at the periphery of the workpiece, and controlling a tool surface velocity VT relative to the workpiece surface velocity VW so that the first and second discrete locations are discontinuous. The tool may make multiple iterative passes over the workpiece to engage subsequent discrete locations, wherein the first discrete location, second discrete location, and multiple subsequent discrete locations may form a machined surface that extends continuously around the workpiece. | 04-26-2012 |
| 20120096964 | Feed Apparatus - A feed apparatus has a ball screw, a nut, a drive motor, a braking mechanism and a controller and moves a movable body vertically. When recognizing a movement command for rapid traverse relating to the movable body, the controller, when the movable body is to be moved upward, moves the movable body past a target position according to the movement command and then reverses the moving direction thereof and moves the movable body to the target position and stops it there, and, when the movable body is to be moved downward, moves the movable body directly to the target position and stops it there. After moving the movable body to the target position and stopping it there, the controller causes the drive motor to keep the position of the movable body at the stop position and causes the braking mechanism to brake the movement of the movable body. | 04-26-2012 |
| 20120087647 | IN-MAGAZINE IMAGING DEVICE ENCLOSURE - An enclosure for an imaging device. In one embodiment, the enclosure includes a housing with a transparent window. A shutter mechanism is disposed on the housing and transparent window, and includes an opening formed therein. A shutter covers and uncovers the opening. Further, a gas supplying unit supplies gas to a space between the housing and the shutter mechanism. In another embodiment, the enclosure includes an inner housing with a transparent window, and an outer housing overlapping the inner housing and with an opening formed therein. A driving unit moves the opening along a predetermined path over the transparent window. A gas supplying unit supplies gas to the outer. In yet another embodiment, the enclosure includes inner and outer housings each having an opening formed therein. A rotating unit rotates one of the inner and outer housings, and a gas supplying unit supplies gas to the inner housing. | 04-12-2012 |
| 20120065767 | Controller for Machine Tool and Machining-Related Data Processing System Provided Therewith - A machining-related data processing system has a configuration in which a controller for machine tool comprising an NC device and an assisting device is connected to a data processing device via a telecommunication line. The assisting device has a cooperative-processing instructing section transmitting a cooperative processing signal to the data processing device and thereby remotely operating the data processing device to cause it to perform data processing, and receiving the result of the data processing performed in the data processing device, and the data processing device has an automatic program generation section, a machining simulation section and a cooperative-processing executing section receiving the cooperative processing signal from the controller and causing the automatic program generation section and the machining simulation section to perform data processing related to workpiece machining and corresponding to a data processing request accepted in the controller, and transmitting the data processing result to the controller. | 03-15-2012 |
| 20120029866 | RELOCATION DETECTION METHOD AND RELOCATION DETECTION UNIT - A relocation detection unit includes: an acceleration sensor adapted to detect acceleration generated in the apparatus, an arithmetic section adapted to obtain a first calculation value by performing Nth-order integration on detected value of the acceleration sensor at a predetermined timing, wherein N is a predetermined positive integer, a correction section adapted to obtain a second calculated value by adding/subtracting a specific value to/from the first calculation value at the predetermined timing, and a detection section adapted to detect that the apparatus has been relocated if the second calculated value exceeds a preset reference value. | 02-02-2012 |
| 20110317172 | DISPLACEMENT DETECTING DEVICE - A displacement detecting device comprises: a light source, a first beam splitter adapted to split the light emitted from the light source into a first beam and a second beam, a reflecting member adapted to reflect the first beam, an objective lens adapted to condense the second beam on a surface-to-be-measured, a first light receiving section adapted to receive interference light of the reflected first beam and the reflected second beam, a relative position information output section adapted to output relative position information in height direction of the surface-to-be-measured, a second beam splitter adapted to extract a part of the reflected second beam, an astigmatism generator adapted to generate astigmatism in the extracted second beam, a second light receiving section adapted to receive the second beam having astigmatism, and an absolute position information output section adapted to generate absolute position information in height direction of the surface-to-be-measured. | 12-29-2011 |
| 20110310400 | DISPLACEMENT DETECTING DEVICE - In a displacement detecting device, an objective lens condenses the outgoing light coming from a light source toward a surface-to-be-measured. The optical path of the reflected light coming from the surface-to-be-measured is separated from the optical path of the outgoing light coming from the light source by a separation optical system. The reflected light passing through the separation optical system is condensed by a collimator lens and has astigmatism generated therein by an astigmatism generator, and the reflected light in such a state is incident on a light receiving section. A position information generator generates the position information of the surface-to-be-measured using a focus error signal obtained based on the amount of light detected by the light receiving section. Further, the position of the condenser, the astigmatism generator or the light receiving section in the optical axis is set so that the value of the focus error signal is equal to “0” when the focus of the outgoing light condensed by the objective lens is located on the front side or back side of the surface-to-be-measured. | 12-22-2011 |
| 20110310397 | POSITION DETECTION DEVICE - A position detection device in which 2nd-order or higher order diffracted light as well as stray light is suppressed from being generated to improve the S/N ratio of a position detection signal as well as to improve detection accuracy. With a pitch d of a diffraction grating | 12-22-2011 |
| 20110310396 | DISPLACEMENT DETECTING DEVICE - A displacement detecting device has a diffraction grating, grating interferometers, and relative position information output sections. The grating interferometers have a light source, reflectors, a beam splitter, and light receiving sections. The reflectors reflect 1st-order diffracted lights diffracted by the diffraction grating, and cause the reflected 1st-order diffracted lights to be incident at a position substantially identical to the position at which the light from the light source is irradiated. Furthermore, the reflectors cause the 1st-order diffracted lights to be incident on the diffraction grating at an angle different to either the incidence angle of the light from the light source incident on the diffraction grating or the angle at which the 1st-order diffracted lights are transmitted through or reflected by the diffraction grating. | 12-22-2011 |
| 20110307212 | METHOD AND APPARATUS FOR MEASURING WORKPIECE ON MACHINE TOOL - A measuring head attached to a machine tool is swiveled by a predetermined angle. A reference sphere is then measured by the measuring head from a first direction and a second direction. Accordingly, coordinates of a center point of the reference sphere are acquired. First machine coordinates of the measuring head are coordinates when the measuring head measures the center point of the reference sphere from a first direction. Second machine coordinates of the measuring head are coordinates when the measuring head measures the center point of the reference sphere from a second direction. A 3-dimensional offset of the measuring head is acquired, based on the first machine coordinates and the second machine coordinates of the measuring head. Subsequently, the workpiece is measured by the measuring head, by using the 3-dimensional offset of the measuring head. As a result, the 3-dimensional offset of the measuring head is acquired, and thereby the workpiece can be measured by the measuring head because the measurement function intrinsic to the measuring head is effectively used without separately using another measuring instrument. | 12-15-2011 |
| 20110285499 | ELECTRONIC EQUIPMENT, AND RESTRICTION REMOVAL METHOD - Electronic equipment includes a GPS dongle for acquiring current location position information, and a PC for acquiring planned installation position information indicating a planned installation position of a machine tool previously registered with a server device which is a supplier-side device of the machine tool from the server device. The electronic equipment compares the acquired current location position information with the acquired planned installation position information, to determine whether or not the current location is within a predetermined range having the previously registered planned installation position as a base point. The electronic equipment determines, if it is determined that the current location is within the predetermined range having the planned installation position as a base point, whether or not a predetermined condition has been satisfied. The electronic equipment performs, if it is determined that the predetermined condition has been satisfied, information input processing on the machine tool, to remove activation restriction on the machine tool. In this manner, the electronic component can prevent illegal removal of activation restriction on the machine tool. | 11-24-2011 |
| 20110251714 | APPARATUS FOR AND METHOD OF MEASURING WORKPIECE ON MACHINE TOOL - A workpiece measuring apparatus has an external module provided outside an NC device to acquire position data of one or more movable axes of a movable unit having a measuring head attached thereto. The position data of the measuring head is acquired at the same time interval as that for the distance measurement by the measuring head. The position of the workpiece is acquired by calculation from the acquired distance measurement data and the position data of the measuring head. The continuous shape of the workpiece can be measured by performing continuous measurement while moving the measuring head. Therefore, no modification or change is required such as adding a new function to the NC device. In addition, the present invention is applicable to any machine tool equipped with an NC device of any configuration, without being restricted by constraints of the NC device. | 10-13-2011 |
| 20110209529 | Measuring Apparatus and Method - An apparatus for obtaining information about a workpiece may include a measuring device having a nozzle defining an orifice in fluid communication with a source of incompressible fluid. A fluid monitoring apparatus may monitor a parameter of the substantially incompressible fluid, and a pump may be fluidly coupled to the source and configured to supply incompressible fluid to the orifice. The pump may have a pump chamber with a first displacement setting having a first fixed volume, so that operation of the pump at a first pump speed with the pump chamber in the first displacement setting generates a first fluid flow having a substantially constant first volumetric rate. The pump may have more than one displacement setting, or the pump may be operated at different speeds to change the volumetric flow rate. The nozzle may include multiple, independent orifice sets that may be selectively provided fluid, thereby to obtain information on different parts of the workpiece with a single placement of the nozzle. Additionally, the apparatus may be incorporated into a CNC machine to perform simultaneous measurement and machining operations. | 09-01-2011 |
| 20110190925 | Controller for Machine Tool - A controller for machine tool | 08-04-2011 |
| 20110190915 | METHOD OF AND APPARATUS FOR CONTROLLING MACHINE TOOL FOR RESTARTING AUTOMATIC OPERATION - A machine tool is controlled to restart automatic operation thereof for machining a workpiece from an interrupted point after the machine tool, which has been automatically operated by NC program commands output from an NC apparatus, is caused to interrupt the automatic operation. The NC program commands are classified into a plurality of main groups with respect to the contents of motions for changing the machine state of the machine tool. When the automatic operation of the machine tool restarts after the automatic operation has been interrupted halfway, an order of execution of the NC program commands is determined such that the main groups are arranged in a prescribed order of execution, for automatically generating a machine state restoration command. After the machine tool has been caused to interrupt its automatic operation under NC program commands, the automatic operation of the machine tool can restart from the interrupted point without the need for the operator to manually generate or correct a command for restoring the machine tool to its machine state upon interruption and also with safety free from physical interference between the workpiece and a tool during their movement. | 08-04-2011 |
| 20110169440 | MACHINE TOOL - A machine tool includes a time calculation unit calculating the time for a spindle to arrive at a target rotational speed, and the time for a spindle head to arrive at a target position; a comparison unit comparing the time to arrive at the target rotational speed and the time to arrive at the target position; and a drive control unit controlling the drive of the spindle and the drive of the spindle head. The drive control unit controls the drive of the spindle head, when a determination is made that the time to arrive at the target rotational speed is longer than the time to arrive at the target position, such that the time for the spindle head to arrive at the target position is longer than the calculated time to arrive at the target position, and less than or equal to the calculated time to arrive at the target rotational speed. Accordingly, the machine tool can drive the spindle head that is a control object in a power-saving mode. | 07-14-2011 |
| 20110164939 | MACHINE TOOL - A machine tool | 07-07-2011 |
| 20110156884 | INDUSTRIAL INSTRUMENT AND MACHINE TOOL - A control device of a machine tool includes a first determination unit determining an amount of rotation, rotational speed, and direction of rotation of a rotary handle based on a pulse signal generated by rotation of the rotary handle at a manual pulse generator, and a second determination unit determining which of position control and rotational speed control is selected by selection of an axis through an axis selector switch, based on a signal generated by an axis selection signal generator at an operation device including the manual pulse generator. When a determination is made that position control is selected, the control device controls the amount and direction of travel of a spindle based on the amount of rotation and direction of rotation of the rotary handle. When a determination is made that rotational speed control is selected, the control device controls the rotational speed and direction of rotation of a table based on the rotational speed and direction of rotation of the rotary handle. Accordingly, the user can readily set the direction of rotation and rotational speed of the table using the manual pulse generator, and cause the table to move at the set direction of rotation and rotational speed. | 06-30-2011 |
| 20110118867 | Device and Method for Turning in Virtual Planes - A turning method and apparatus includes a tool holding mechanism, such as a turret, and a workpiece holder, typically a chuck disposed on a main machine spindle. The tool holding mechanism may be translated in three directions relative to the workpiece holder, including a Z-direction that is along the axis of the rotation of the workpiece holder and X- and Y-directions orthogonal thereto. Under the control of the computer control system, the tool holding mechanism is moved in a direction having both an X- and Y-component relative to the workpiece holder. | 05-19-2011 |
| 20110107573 | MACHINE TOOL AND TOOL HOLDER - A machine tool having a turning function and a milling function includes a spindle, a spindle housing supporting the spindle in a rotatable manner, a main clamp provided at the spindle, an auxiliary clamp provided at the spindle housing, and a double arm with a first gripper and a second gripper. The auxiliary clamp clamps a tool holder together with the main clamp during fixing a fixed tool. The double arm exchanges a tool holder grasped at the first gripper for another tool holder grasped at the second gripper by rotating and sliding movements. The auxiliary clamp is arranged at a position not interfering with the double arm that moves during exchanging tool holders. By such a configuration, a machine tool achieving a clamping force sufficient to withstand the load during a turning process, and that allows tool exchange in a short period of time, and a tool holder employed in such a machine tool, can be provided. | 05-12-2011 |
| 20110076105 | CYLINDRICAL ROTATING TOOL WITH INTERNAL FLUID PASSAGE AND MACHINING METHOD USING THE SAME - A cylindrical rotating tool comprises a major diameter portion having formed therein an internal fluid passage, a minor diameter portion provided in front of the major diameter portion, and a tip attached to the front of the minor diameter portion. When seen from behind the central axis line, an inner circumference of an outlet of the internal fluid passage intersects with an outer circumference of the minor diameter portion. At the site of the outlet, a notch is formed on an outer circumferential surface of the minor diameter portion. An inclined portion of the notch is formed obliquely so that the distance from the central axis line to the inclined portion on further forward of the minor diameter portion becomes larger than the distance from the central axis line to the inclined portion on a closest position on the entire circumference of the outlet to the central axis line. The inclined portion guides a partial flow of the coolant, gushing forward from the outlet, outward in a radial direction of the minor diameter portion. Accordingly, the coolant ejected forward from the outlet flows over the outer circumferential surface of the tool, spreading like a curved fan without diffusing outward in the radial direction, and is supplied to the tip, whereby the outer circumferential surface of the tool and the tip are cooled. | 03-31-2011 |
| 20110015885 | ON-MACHINE MEASUREMENT METHOD AND MEASUREMENT APPARATUS - A reference mirror | 01-20-2011 |
| 20110015771 | NUMERICALLY CONTROLLING APPARATUS - A numerically controlling apparatus is provided in which the automatic operation of a machine tool can be stopped at a desired block and yet at plurality of desired blocks without changing NC programs. In this numerically controlling apparatus, an operator performs a change into the “EDIT” mode with a mode selecting switch on a keyboard | 01-20-2011 |
| 20100319903 | TEMPERATURE CONTROL APPARATUS OF WORKING MACHINE - Provided is a temperature control apparatus of a working machine that is inexpensive, energy-saving and capable of eliminating the temperature difference between a temperature in a room in which the working machine is installed and a temperature of a working area. | 12-23-2010 |
| 20100288089 | MACHINING METHOD AND MACHINING SYSTEM - The present invention relates to a machining system etc. capable of highly accurately machining a workpiece even in a case where the workpiece is deflected. A machining system | 11-18-2010 |
| 20100288088 | MACHINING METHOD AND MACHINING SYSTEM - A machining system | 11-18-2010 |
| 20100282037 | MACHINE TOOL FOR TURNING OPERATIONS - A multi-axis turning center for turning operations includes a machine body, a tool rest means for holding a tool, a first headstock for holding a workpiece, and a second headstock disposed in confronting relation to the first headstock, for holding a workpiece. The second headstock has a front chuck and a rear chuck for gripping respective workpieces. The second headstock performs a workpiece changing function by swiveling about a central axis. The multi-axis turning center is capable of automatically changing the workpieces by itself while it is carrying out a machining process, without the need for a workpiece changer. The multi-axis turning center does not need to stop its machining process for changing workpieces, resulting in an increase in the utilization ratio thereof. | 11-11-2010 |
| 20100278606 | SYSTEM AND METHOD OF SYNCHRONIZED MACHINING - Machine tool systems and methods include methods of synchronizing cutting tools with a workpiece retainer. In some embodiments, the methods and systems provide at least two cutting tools that are synchronized to machine a common surface of a workpiece in a quick and efficient manner. A controller having a single line of code for controlling both cutting tools and the workpiece retainer may be used. The cutting tools may be synchronized such that they engage substantially opposite portions of the workpiece, thereby to reduce resulting forces in the workpiece that may tend to induce workpiece deflection and/or chatter. In other embodiments, a cutting tool is synchronized with a split workpiece holder that may be controlled to induce a compression, tension, or torsion pre-load in the workpiece. | 11-04-2010 |
| 20100266358 | CHIP DISCHARGE DEVICE FOR MACHINE TOOL - A chip discharge device for a machine tool is provided that has a simple structure, enables automatic replacement of tools, and is suitable for a machine tool in which a spindle head is turned about an axis of turning that is not parallel to the center axis of the spindle. | 10-21-2010 |
| 20100251863 | WORKPIECE GRIPPING METHOD AND WORKPIECE CENTERING APPARATUS - A workpiece centering apparatus | 10-07-2010 |
| 20100241267 | APPARATUS FOR AND METHOD OF MEASURING WORKPIECE ON MACHINE TOOL - A workpiece measuring apparatus includes a programmable controller which acquires positional data of a measuring head. At the same time that the programmable controller acquires the positional data, a pulse output unit outputs timing pulses. The measuring head measures a workpiece on a machine tool according to a measurement command which is output positively earlier than the timing of predetermined time intervals by a time difference which is preset by a predictive system. As a result, a first time at which the programmable controller acquires the positional data of the measuring head and a second time at which the measuring head measures the workpiece in response to the measurement command synchronize. The workpiece measuring apparatus is capable of measuring the workpiece highly accurately in a three-dimensional space according to a minimum required amount of measured data without the need for modifying an existing NC apparatus combined with the machine tool. | 09-23-2010 |
| 20100166510 | TOOL WITH INTERNAL FLUID PASSAGE - A tool has a shank and a cutting blade mounted on the shank. The tool also includes an internal fluid passage for drawing in, together with air, chips produced when the cutting blade machines a workpiece. The internal fluid passage comprises a through hole made in the shank, at least one main inlet hole for drawing in the chips together with the air, the main inlet hole being made in the cutting blade and being in fluid communication with the through hole, and at least one sub-inlet hole for drawing in at least the air, the sub-inlet hole being made in the shank and being in fluid communication with the through hole. The chips can efficiently be discharged from the tool without being deposited in the internal fluid passage, by the air which flows at a suitable speed through the internal fluid passage and draws the chips, regardless of the diameter of the tool. | 07-01-2010 |
| 20100114359 | PROGRAMMING APPARATUS - A programming apparatus has a parameter storage section for storing parameters related to the operation control of an operating mechanism of an NC machine tool, a CL data storage section for storing CL data including data relating to a moving position of a tool and machining conditions, an NC program generating section for referring to the parameters in the parameter storage section, and generating an NC program form the CL data in the CL data storage section, and NC program storage section for storing the generated NC program. The NC program generating section checks whether the machining condition data included in the CL data is suitable by referring to the parameters, and, when it is not suitable, corrects the machining condition data using the parameters and then generates an NC program based on the CL data in which the corrected machining condition data is included. | 05-06-2010 |
| 20100094450 | AUTOMATIC PROGRAMMING METHOD AND AUTOMATIC PROGRAMMING DEVICE - The present invention relates to a conversational automatic programming device or the like capable of generating an NC program in a simpler manner and in a shorter period of time. The automatic programming device | 04-15-2010 |
| 20100063617 | MACHINING STATE CHECKING METHOD AND MACHINING STATE CHECKING APPARATUS - The present invention provides a machining state checking apparatus and method for checking whether a workpiece mounted on a machine tool and a workpiece fixture are shifted. A machining state checking apparatus has an actual CCD camera for imaging a workpiece fixed on a machine tool and a workpiece fixture and generating actual two-dimensional image data thereof, a virtual image generating section for generating virtual two-dimensional image data of the workpiece and workpiece fixture based on data on three-dimensional models of the workpiece and workpiece fixture, a comparing section for comparing the actual two-dimensional image data and virtual two-dimensional image data generated by the actual CCD camera and the virtual image generating section, respectively, and determining whether they match each other by comparing the portions corresponding to the workpiece and workpiece fixture in the actual two-dimensional image and the virtual two-dimensional images of the workpiece and workpiece fixture. | 03-11-2010 |
| 20100063616 | MACHINING STATUS MONITORING METHOD AND MACHINING STATUS MONITORING APPARATUS - A machining status monitoring apparatus is provided on a machine tool, and has an actual CCD camera for imaging the tool and the workpiece and generating actual two-dimensional image data thereof, a virtual image generating section having a virtual CCD camera corresponding to the actual CCD camera, in which the tool and workpiece of three-dimensional model are imaged by the virtual CCD camera and virtual two-dimensional image data thereof are generated, and a display control section for receiving from a control device of the machine tool, information relating to the coolant supply state and checking whether coolant is being supplied to the contact portion of the tool and the workpiece, and displaying on a display device actual two-dimensional image data when coolant is not being supplied and displaying on the display device virtual two-dimensional image data when coolant is being supplied. | 03-11-2010 |
| 20100063615 | MACHINING STATUS MONITORING METHOD AND MACHINING STATUS MONITORING APPARATUS - A machining status monitoring apparatus is provided on a machine tool, and has a plurality of actual CCD cameras for imaging the tool and workpiece from different view points and generating actual two-dimensional image data thereof, a virtual image generating section having a plurality of virtual CCD cameras corresponding to the actual CCD cameras, in which the tool and workpiece of three-dimensional model are imaged by the virtual CCD cameras from each point and virtual two-dimensional image data thereof are generated, and a display control section for selecting one virtual CCD camera corresponding to the virtual two-dimensional image data in which the distal end of the tool is not hidden by the workpiece among the generated two-dimensional image data, and displaying the actual two-dimensional image data generated by the actual CCD camera corresponding to the selected virtual CCD camera on a display device. | 03-11-2010 |
| 20100050832 | ULTRA-PRECISION MACHINE TOOL - A 5 axis motion controlled ultra-precision machine tool is provided in which major portions are composed as a structure completely symmetric about the machining point and errors due to thermal displacement can be minimized. | 03-04-2010 |
| 20090265030 | MACHINING SIMULATION METHOD AND MACHINING SIMULATION APPARATUS - A machining simulation apparatus is arranged in a machine tool having a tool holding mechanism, a workpiece holding mechanism, a drive mechanism and a numerical controller, and provided with: an actual CCD camera for imaging a tool held by the tool holding mechanism and the workpiece holding mechanism not holding a workpiece to generate actual image data; a model data update processing section for generating model data relating to when moving the holding mechanisms based on the operation command received from the numerical controller and the model data of the holding mechanisms, tool and workpiece; a virtual image generation processing section for generating virtual image data of the tool and workpiece based on the generated model data; and a rendering processing section for generating composite image data by superimposing the virtual image on the actual image, and displaying the composite image data on a screen display device. | 10-22-2009 |
| 20090244550 | METHOD FOR CONTROLLING A MACHINE TOOL AND APPARATUS THEREFOR - Relative movement in X, Y and Z axis directions is made between a main spindle and a table | 10-01-2009 |
| 20090235783 | CIRCULAR DIVIDING TABLE FOR MACHINE TOOL - By causing the annular piston ( | 09-24-2009 |
| 20090229919 | COOLING/LUBRICATING DEVICE FOR MACHINE TOOL FEED SHAFT - By using the same liquid for cooling and lubricating a feed shaft, a simpler structure is obtained, thereby allowing easier maintenance. A feed shaft that is rotatably supported at one end thereof moves a slide of a machine tool. The feed shaft is supported by a support member via a bearing. A pipe is fitted to the feed shaft, and a pathway space is provided allowing the reciprocal flow of the cooling/lubricating liquid in the axial direction. Some of the cooling/lubricating liquid supplied via the support member to the feed space passes through the pathway space as cooling liquid, cools the feed shaft, and is held in a discharge space. At the same time, some of the cooling/lubricating liquid flows, as lubricating liquid, into the bearing, is discharged, and is held in a discharge space. The cooling/lubricating liquid in the discharge space that has absorbed the heat of the structure is immediately discharged out of the support member. | 09-17-2009 |
| 20090136313 | SPINDLE DEVICE FOR MACHINE TOOL - A machine-tool spindle device includes: a spindle; a front housing for rotatably supporting the spindle; a first drive motor having a first rotor installed securely on the spindle and a first stator installed securely within the front housing; a rear housing installed on a rear end side of the spindle in the front housing; a second drive motor having an annular second rotor which is disposed coaxially to the spindle near a rear end of the spindle and which is supported rotatably within the rear housing, and a second stator installed securely within the rear housing; a connecting mechanism for connecting the rear end of the spindle and the second rotor and releasing the connection; and a clamping mechanism, disposed within the attaching hole of the spindle and within the second rotor, for clamping a tool attached to the spindle. | 05-28-2009 |
| 20090121113 | MACHINE TOOL - A machine tool has a pair of guide rails and a pair of upper and lower ball screws. No forces are transferred between a beam of a double column frame and a movable unit. The guide rails are spaced from each other and disposed on a bed, and the movable unit is horizontally movably supported on the guide rails. The upper and lower ball screws are mounted respectively on upper and lower portions of the double column frame for moving the movable unit horizontally. Even when the beam is deformed by flexing downwardly by gravity, the movable unit moves stably and smoothly at a high speed to machine a workpiece highly accurately without being adversely affected by the deformation of the beam. | 05-14-2009 |
| 20090070077 | THREE-DIMENSIONAL MODEL DATA GENERATING METHOD, AND THREE DIMENSIONAL MODEL DATA GENERATING APPARATUS - The present invention relates to an apparatus for generating three-dimensional model data or the like, capable of correctly and efficiently generating three-dimensional model data including an attached object attached to a machine tool and a part of the machine tool. A apparatus for generating three-dimensional model data | 03-12-2009 |
| 20090036282 | MACHINE TOOL WITH AUTOMATIC TOOL CHANGER - A tool changing unit moves between a magazine position and a changing position to transfer a tool. A machine tool has a plurality of tool changing positions. One of the tool changing positions is selected in advance for changing the tools next time. The tool changing unit and the tool mounted on a tool spindle move to the selected changing position for changing the tools in the selected changing position. Accordingly, the tool changing unit and the tool spindle move respective short distances for changing the tools, thereby shortening the non-machining time of a machine tool combined with the automatic tool changer. | 02-05-2009 |
| 20090015668 | THREE-DIMENSIONAL MODEL DATA CONFIRMING METHOD, AND THREE-DIMENSIONAL MODEL DATA CONFIRMING APPARATUS - The present invention relates to an apparatus for confirming three-dimensional model data or the like, capable of confirming easily, efficiently, and precisely whether three-dimensional model data including an attached object attached to a machine tool and at least a part of the machine tool good are accurate. An apparatus | 01-15-2009 |
| 20080254959 | Universal head and machine tool with universal head - A universal head changes the orientation of a tool freely and machines a workpiece with the tool in the changed orientation. The universal head comprises a universal head body, for swiveling movement, including a swinging unit and an attachment detachably mounted on the swinging unit with a rotating tool removably mounted on the attachment. The universal head has, and simultaneously offers, the advantages of both a universal head, which allows the tool to change its orientation freely for machining a workpiece, and an attachment which allows the tool to be brought closely to the workpiece for machining the workpiece. The universal head does not require a process of installing itself on and removing itself from a universal head support. | 10-16-2008 |
