MAKINO MILLING MACHINE CO., LTD. Patent applications |
Patent application number | Title | Published |
20160054724 | METHOD OF EVALUATING A MACHINED SURFACE OF A WORKPIECE, A CONTROLLING APPARATUS AND A MACHINE TOOL - A worked surface of a workpiece is evaluated on the basis of how the surface is actually perceived by a person's (observer's) eyes (vision) or fingers (touch), and a work process whereby a workpiece is worked is changed on the basis of the evaluation. | 02-25-2016 |
20160004248 | WORKING MACHINE FEED AXIS CONTROL METHOD AND FEED AXIS CONTROL DEVICE - A working machine feed axis control device: disposes a velocity feedback loop and forms a cascade coupling on the inner side of a location feedback loop; comprises a velocity gain setting apparatus ( | 01-07-2016 |
20150367472 | MACHINE TOOL - A work-machine splash guard for enclosing a space for machining a workpiece, and preventing the spraying of chips and machining fluid, is equipped with: a front-surface door for opening and closing in the horizontal direction via an arc-shaped movement, and positioned on the front-surface side of the work machine; a side-surface door for opening and closing by performing an arc-shaped movement that is concentric with the front-surface door, and overlapping with the front-surface door; and door-locking switches for selectively allowing the opening/closing of the front-surface door and the side-surface door according to an opening/closing pattern. | 12-24-2015 |
20150323923 | CONTROL DEVICE FOR MACHINE TOOL AND MACHINE TOOL - A control device for a machine tool for machining a workpiece while orbital movement is performed for causing an auto-rotating rotary tool to move in a circular manner, the control device comprising: a reading and interpreting unit for reading a machining program containing input information; and a computing unit for combining a first tool pathway along which a rotary tool travels and which has been set on the basis of input information about the travel of the rotary tool, and a second tool pathway along which the rotary tool orbits and which has been set on the basis of input information about the orbital movement, and for setting a third tool pathway along which the rotary tool travels in a machining shape while moving in an orbital manner. | 11-12-2015 |
20150298225 | T-SHAPED CUTTER, RIB-MACHINING METHOD AND AIRPLANE PART - On the perimeter of a head ( | 10-22-2015 |
20150293524 | PROCESSING PROGRAM GENERATION METHOD AND DEVICE - A processing program generation method for generating a processing program (PR) for a work machine on the basis of use-results information for a tool ( | 10-15-2015 |
20150293522 | MACHINE TOOL CONTROL DEVICE AND MACHINE TOOL - The machine tool control device is provided with a calculation unit for estimating, on the basis of the tool path for machining using a tool and information on the workpiece, the portion of the tool that will form the final machined surface. The control device is provided with a feed rate-setting unit for estimating the fastest moving point, among multiple moving points contained in the portion that will form the final machined surface, for which the relative velocity of the tool with respect to the workpiece will be maximal and setting the feed rates for the machine tool movement shafts so that the relative velocity of the fastest moving point is at or below a previously specified relative velocity. | 10-15-2015 |
20150293519 | MACHINE TOOL CONTROL DEVICE AND MACHINE TOOL - A control device for a machine tool for machining a workpiece while moving a rotating tool relative to the workpiece, the device being provided with: an input information-reading unit for reading input information, which comprises a path along the contour of the workpiece or the tool path of a first rotating tool that follows the external form of the workpiece; and a path-setting unit for converting the input information read by the input information-reading unit to generate a tool path for performing the machining using the end cutting edge of a second rotating tool. | 10-15-2015 |
20150277419 | WORKPIECE-ATTACHMENT-INFORMATION REPORTING DEVICE - A workpiece-attachment-information reporting device ( | 10-01-2015 |
20150239056 | ELECTRICAL DISCHARGE MACHINING METHOD AND ELECTRODE-GUIDE POSITION SETTING DEVICE - In the present invention, when performing electrical discharge machining on a workpiece via an electrical discharge machine that has an electrode holder and an electrode guide, a workpiece model and an electrode-guide model are generated in advance, an interference-start position at which the electrode-guide model starts interfering with the workpiece model when said electrode-guide model is moved towards the workpiece model along an axis line (CLa) is calculated, and a position obtained by moving the electrode-guide model a prescribed distance away from the workpiece model, starting at the interference-start position, is set as an electrode-guide position. With the electrode guide positioned at said electrode-guide position, the electrode holder is moved downwards in order to move an electrode downwards toward the workpiece surface, and electrical discharge machining is performed on the workpiece. | 08-27-2015 |
20150234374 | TOOL PATH-GENERATING METHOD, MACHINE TOOL CONTROL DEVICE AND TOOL PATH-GENERATING DEVICE - A tool path-generating method for computing a tool path to process a workpiece, wherein the tool path for a designated tool when processing using the designated tool is previously established. The tool path-generating method comprises a path-computing process for computing, on the basis of the tool path for the designated tool, the tool path of a substitute tool differing from the designated tool when processing with the substitute tool. The path-computing process computes the portion that ultimately forms the machined surface when the workpiece is processed using the designated tool and sets the tool path for the substitute tool on the basis of the portion that ultimately forms the machined surface. | 08-20-2015 |
20150231720 | PROCESSING TANK RAISING/LOWERING DEVICE AND PROCESSING TANK RAISING/LOWERING METHOD FOR ELECTRICAL DISCHARGE MACHINE - In an electrical discharge machine, the top end of a vertically extending electrode is supported by an electrode holder so as to be able to be raised and lowered, the circumferential surface of the bottom end of said electrode is supported by an electrode guide that is disposed so as to be able to move vertically with respect to the electrode holder, and the position of said electrode guide is detected by a position detection unit. This electrical discharge machine is provided with a work-tank raising/lowering device. During electrical discharge machining, said work-tank raising/lowering device raises/lowers a work tank, in accordance with the electrode-guide position (Hg) detected by the position detection unit, so as to set the distance from a prescribed part of the work tank to the electrode-guide position (Hg) equal to a prescribed value (Ha). | 08-20-2015 |
20150209884 | REPLACEMENT DETERMINATION DEVICE FOR ELECTRICAL DISCHARGE MACHINING ELECTRODE AND REPLACEMENT DETERMINATION METHOD - A replacement determination method: detects the remaining length of the electrode; detects the electrical discharge commencement position, being the position of the electrode when electrical discharge starts; detects the throughole position, being the position of the electrode when the workpiece is pierced; sets the required length for the electrode as required for machining the next throughhole, on the basis of the difference between the detected electrical discharge commencement position and the detected throughole position; compares the detected remaining length and the set required length; and determines whether or not electrode replacement is required. | 07-30-2015 |
20150209883 | ELECTRICAL DISCHARGE MACHINING METHOD - An electrical discharge machining method includes a step in which a pipe electrode is arranged such that the axis line of the pipe electrode faces the depth direction of the throughholes, the pipe electrode is moved relative to the workpiece, and a sloped section is formed; a step in which a straight section connected to the sloped section is formed; and a step in which the pipe electrode is arranged such that the axis line is vertical relative to the inside wall surface of the sloped section, the pipe electrode is moved relative to the workpiece, and the inside wall surface is machined. | 07-30-2015 |
20150088454 | TOOL MEASURING METHOD AND MACHINE TOOLS PROVIDED WITH MEASURING FUNCTIONS - When measuring the dimensions of a tool having a cutting portion at an edge of a planar portion, first a plurality of points are measured on the planar portion using a measuring probe, then a planar formula for a measurement plane containing the planar portion is determined from these measured values. Next, the measuring probe is moved along the measurement plane expressed by the planar formula from the exterior of the cutting portion toward the cutting portion until the measuring probe contacts the cutting portion. The position of the cutting portion is determined based on the position of the measuring probe when the measuring probe comes into contact with the cutting portion. | 03-26-2015 |
20150068330 | MACHINE TOOL - In order to obtain a configuration allowing an operator to promptly identify whether a physical amount is within the normal range, this machine tool is configured so as to be provided with: sensors for sensing a physical amount showing the state of the machine tool, the normal range of the physical amount changing in correspondence with the machining condition; a setting unit for setting the normal range of the physical amount corresponding to the machining condition; and a display for displaying the normal range set by the setting unit alongside the sensing value sensed by the sensors. | 03-12-2015 |
20150068272 | INTERFERENCE DETERMINATION METHOD AND INTERFERENCE DETERMINATION DEVICE FOR MACHINE TOOL - An interference determination method for machine tools which determines whether or not there will be interference between elements that move relative to each other, the method including: a setting procedure for setting a machine tool model obtained by combining the shape model of each of the elements including a work model corresponding to the work; a measurement procedure for measuring the position of the work attached to the work attachment part; a correction procedure for acquiring, at a predetermined timing, the position of the work measured in the measurement procedure, and correcting the machine tool model set in the setting procedure; and a determination procedure for determining whether or not there will be interference between the elements on the basis of the machine tool model corrected in the correction procedure. | 03-12-2015 |
20150066191 | WORKPIECE MACHINING SURFACE DISPLAY METHOD, WORKPIECE MACHINING SURFACE DISPLAY DEVICE, TOOL PATH GENERATION DEVICE AND WORKPIECE MACHINING SURFACE DISPLAY PROGRAM - The invention is a workpiece machining surface display method by means of which a machining mark generated when a workpiece machining surface is machined by a rotary tool comprising a cutting edge is displayed on a display device. Said workpiece machining surface display method contains: a first step in which the shape and position of an indentation generated by the cutting edge shaving the workpiece machining surface are predicted; and a second step in which an indentation image representing the shape of the indentation that has been predicted in the first step is displayed in association with the predicted position. | 03-05-2015 |
20150056036 | WORKPIECE MACHINING METHOD, MACHINE TOOL, TOOL PATH-GENERATING DEVICE AND TOOL PATH-GENERATING PROGRAM - A workpiece machining method that machines a workpiece surface by moving a rotating tool, which has a cutting blade for interrupted cutting of the workpiece surface, relative to the workpiece comprises: a first process of determining the pattern of arrangement of multiple cavities on the surface of the workpiece formed after cutting by the cutting blade; and a second process of determining the tool path of the rotating tool so that the multiple cavities are disposed on the surface of the workpiece according to the pattern of arrangement determined in the first process. | 02-26-2015 |
20140355002 | ERROR MEASUREMENT METHOD AND MACHINE TOOL - A method for measuring errors in the linear feed shafts of a multi-spindle machine tool having two or more rotating feed shafts in addition to three linear feed shafts, wherein: at least first through third reflecting minors are attached to a table of the machine tool; a laser length-measuring machine is attached to the tip of a principal shaft of the machine tool; the linear feed shafts are driven, and the laser length-measuring machine is moved to prescribed measuring points; the two or more rotating feed shafts are driven at each of the measuring points; the coordinates at each measuring point are calculated by measuring the distances between the first through third reflecting minors and the laser length-measuring machine; and errors in the linear feed shafts of the machine tool are obtained by comparing the machine coordinates of the machine tool. | 12-04-2014 |
20140338765 | COOLANT SUPPLY APPARATUS - A coolant supply apparatus includes variable delivery coolant pump ( | 11-20-2014 |
20140338163 | PALLET CHANGER FOR A MACHINE TOOL, A PALLET CHANGING METHOD AND A MACHINE TOOL - The method that exchanges pallets ( | 11-20-2014 |
20140157962 | ROTARY WORKHEAD DEVICE - The rotary workhead device, which is loaded on the table of a machine tool and onto which a workpiece to be machined is rotatably mounted, is equipped with: a base plate that is attached to the table of the machine tool; two rotary workheads that are provided on the base plate and disposed so that the axes of rotation coincide and the workpiece-fixing parts face each other; a guide means that is provided so as to be capable of moving at least one of the rotary workheads back and forth in the direction of the rotation axes; and an impelling means for impelling the one rotary workhead in a direction that separates or brings together the two rotary workheads. The rotary workhead device applies a tensile force or a compressive force on a workpiece, the respective ends of which are fixed between the two rotary workheads. | 06-12-2014 |
20140090517 | SAFETY DEVICE FOR A ROTATIONAL FEED AXIS - The present invention provides a safety device for a rotating feed rod, the safety device preventing the abnormal rotation of the rotating feed rod and being provided with: a rotating member ( | 04-03-2014 |
20140080689 | MACHINE TOOL HAVING WORKPIECE MEASUREMENT FUNCTION - A machine tool including a tool magazine ( | 03-20-2014 |
20140064866 | HOLE DRILLING METHOD AND MACHINE TOOL - A hole drilling method includes a rotating step of attaching a workpiece to a rotary table to make the workpiece rotate in an opposite direction to the rotating direction of the rotary tool and a drilling step of making the rotary tool and the workpiece move relative to each other in a direction in which they approach each other so as to drill a hole. The hole drilling step comprises making a position of the rotary tool track the rotation of the workpiece while drilling the hole so that the rotary tool is arranged at a position for drilling a hole in the workpiece. | 03-06-2014 |
20140013921 | TOOL PATH GENERATING DEVICE AND HAIRLINE MACHINING SYSTEM - A tool path generating device ( | 01-16-2014 |
20130322979 | MACHINE TOOL - According to the machine tool according to the present invention, a top-bottom guide is attached to a back surface of a base frame. By being guided by this top-bottom guide, the lifter moves in the top-bottom direction with respect to the base frame. A drive source which drives rotation of a top-bottom feed screw which extends parallel to the top-bottom guide is attached to a back surface of the base frame. This drive source is coupled with a bottom end of the top-bottom feed screw. As a result, compared to when the drive source is coupled with a top end of the top-bottom feed screw, the center of gravity of the machine tool can be set to a lower position. In this way, a machine tool can be increased in stability. | 12-05-2013 |
20130222580 | METHOD OF MEASUREMENT AND APPARATUS FOR MEASUREMENT OF TOOL DIMENSIONS - In the machine tool ( | 08-29-2013 |
20130211578 | Generation Method and Generation Apparatus of Tool Path - The objective of the present invention is to generate a new tool path quickly by means of a simple calculation formula without calculating an approximated curve and the like. A tool path is generated with procedures that include: a distance calculation procedure, whereby one of the processing points (Pi) on a multiple rows of tool paths (PA) obtained by connecting multiple prescribed processing points sequentially with straight lines is set as a revision processing point (Pt), points on the multiple rows of tool paths in the vicinity of this revision processing point (Pt) are set as distance calculation points (Pu), and the distance (L) from the revision processing point (Pt) to each of the distance calculation points (Pu) is calculated; an extraction procedure, whereby the distance calculation points (Pu′) for which the distance (L) calculated by the distance calculation procedure is within a prescribed value (ΔL) are extracted; a mean value calculation procedure, whereby the mean values of the position data for the distance calculation points (Pu′) extracted by the extraction procedure and the position data for the revision processing point (Pt) are calculated; and a data revision procedure, whereby the position data for the revision processing point (Pt) is revised by means of the mean values calculated by the mean value calculation procedures, and a new tool path (PA′) is created on the basis of the position data for the revised processing point (Pt′). | 08-15-2013 |
20130208286 | METHOD OF MEASUREMENT AND APPARATUS - In the machine tool ( | 08-15-2013 |
20130204426 | Tool Path Generation Method and Apparatus - A method including a bend angle calculation step of calculating a bend angle θ at each connecting point of a broken line which is obtained by successively connecting a predetermined plurality of machining points P | 08-08-2013 |
20130176429 | METHOD OF MEASUREMENT AND APPARATUS FOR MEASUREMENT OF TOOL DIMENSIONS - Provided are a method for measuring tool dimensions and a measurement device, whereby if a machine tool ( | 07-11-2013 |
20130173046 | Correction Method at Time of Feed Axis Reversal - A stick motion correction method which corrects stick motion which occurs at time of reversal of a feed axis of a numerical control machine tool stores a position command to be commanded to a servo motor from an NC program of a numerical control machine tool for each predetermined control period from a current position command to a later position command, calculates a reversal correction command based on the stored position commands, calculates an advancement time for advancing timing of addition of the reversal correction command to a speed or torque command of the motor from reversal timing of the servo motor, based on information obtained from operation of the motor and adds the reversal correction command to the speed or torque command of the servo motor to precisely correct stick motion at a timing advanced from the reversal timing of the servo motor by an exact time. | 07-04-2013 |
20130173045 | NUMERICAL CONTROL METHOD AND NUMERICAL CONTROL DEVICE OF MACHINE TOOL - A numerical control device which controls a feed axis of a machine tool ( | 07-04-2013 |
20130172162 | TOOL EXCHANGER, TOOL MAGAZINE, AND MACHINE TOOL - A tool exchanger for storing a tool ( | 07-04-2013 |
20130164092 | CHATTER VIBRATION DETECTION METHOD, CHATTER VIBERATION AVOIDANCE METHOD, AND MACHINE TOOL - A chatter vibration detection method includes acquiring vibration data of a tool ( | 06-27-2013 |
20130156523 | Scroll Machining Method and Machining Unit - A scroll machining method for forming a wall part ( | 06-20-2013 |
20130004257 | Spindle Device of a Machine Tool - Disclosed is a spindle device ( | 01-03-2013 |
20120315104 | Machine Tool, Working Fluid Supply Apparatus, and Working Fluid - A machine tool ( | 12-13-2012 |
20120215334 | TOOL PATH GENERATION METHOD AND DEVICE - A tool path generation device for machining a workpiece with a machine tool including a reading and interpreting portion which reads out a tool path from a machining program, a target coordinate value calculating portion which sets a plurality of target points at equal intervals on the read out tool path, and a curve approximation calculating portion which generates a tool path based on the plurality of target points, so as to obtain a smooth machined surface without formation of step differences between adjacent tool paths. | 08-23-2012 |
20120136474 | Method Of Control Of Rotation of Spindle and Control System Of Machine Tool - A method of control of rotation of a spindle device and a control system of a machine tool which enable machining without generation of chatter vibration without using special tools of variable pitch cutting edges or chatter vibration detecting means. The method of control of rotation of a spindle device and control system of a machine tool according to the present invention store spindle rotational speed change data, which determines how to change a rotational speed of a spindle in accordance with an instructed speed, linked with machining conditions and stability limit data, select, from an instructed spindle rotational speed and machining conditions and the stored stability limit data, spindle rotational speed change data giving less vibration, and use the selected spindle rotational speed change data as the basis to change the rotational speed of the spindle. | 05-31-2012 |
20110070044 | Machine Tool - A machine tool for machining a workpiece with a tool moved relative to the workpiece is provided with a bed ( | 03-24-2011 |
20110062642 | Workpiece Mounting Block and Machine Tool - A workpiece mounting block and a machine tool are provided that permit a plurality of workpieces to be mounted and machined without giving rise to interference between the workpiece or a table and a main spindle. Work mounting section ( | 03-17-2011 |
20110014001 | Machining Method and Machine Tool - A minimum five-axis machine tool ( | 01-20-2011 |
20110008121 | Machine Tool - Machine tool ( | 01-13-2011 |
20100323863 | Tool Magazine - A tool, magazine ( | 12-23-2010 |
20100320668 | Machine Tool - A machine tool ( | 12-23-2010 |
20100244762 | Method and Device for Preparing Error Map and Numerically Controlled Machine Tool Having Error Map Preparation Function - In a numerically controlled machine tool which has a linear feed axis and a rotational feed axis and in which a main spindle and a table are movable relative to each other, a position error and an attitude error produced by an operation of a linear feed axis and a rotational feed axis are measured at a plurality of measurement points set within a movable range of the linear feed axis and the rotational feed axis, and the position error and the attitude error thus measured are stored as an error map in correspondence to a position of the linear feed axis and a rotation angle of the rotational feed axis. | 09-30-2010 |
20100207567 | Numerically Controlled Machine Tool and Numerical Control Device - A numerically controlled machine tool which has a linear feed axis and a rotational feed axis and which has functions for measuring in advance, errors of a relative position and a relative attitude of a main spindle relative to a work table by positioning the linear feed axis and the rotational feed axis to specified position and attitude, and correcting a movement command based on measured error data, the error data being multi-dimensional data containing a position error and an attitude error. The machine tool includes a error data storage means which store an error map that is prepared by collecting a plurality of the error data corresponding to positions and rotation angles of the linear feed axis and the rotational feed axis, and a correction data computing means which compute correction data for correcting the movement command from a command position for the linear feed axis and the rotational feed axis and the error data stored in the error data storage means. | 08-19-2010 |
20100171276 | TOOL HOLDER - An ID tag ( | 07-08-2010 |
20100018836 | MACHINING FACILITY USING SUB-PALLET - Provided is a flexible machining facility using a sub-pallet, which can quickly satisfy the increasing or decreasing of units or other required specifications. It The machining facility includes a machine tool ( | 01-28-2010 |
20090324354 | SPLASH GUARD OF MACHINE TOOL - A splash guard ( | 12-31-2009 |
20090053005 | SPINDLE DEVICE OF MACHINE TOOL - The present invention provides a cartridge-type spindle device having an easily separable structure despite the fact that it comprises a rotary joint for a through spindle coolant device. In the cartridge replacement type spindle device ( | 02-26-2009 |
20090051091 | Machine Tool Facility Equipped with a Pallet Exchanger - A pallet P is moved in a vertically held state from a pallet-mounting surface vertically formed on a table | 02-26-2009 |