公开(公告)号：US20230133532A1

公开(公告)日：2023-05-04

申请号：US17906696

申请日：2021-03-24

申请人： FANUC CORPORATION

发明人： Yuuki KUMAMOTO ,  Kenta YAMAMOTO

IPC分类号： B23F23/12 ,  B23Q15/013 ,  G05B19/401

摘要： Provided is a control device for a machine tool, the control device being capable of reliably reducing noise when gears mesh with each other and providing intended machining quality. A control device 10 for a machine tool machines a workpiece W including at least one tooth surface and comprises: a machining condition input unit 15 which can input a machining condition including at least one of specifications of the workpiece W, specifications of a tool T, a feed speed, the rotational speed of a spindle, and the number of teeth; a surface pattern calculation unit 16, which calculates, on the basis of the machining condition, a surface pattern defined on the basis of intervals of scratches occurring on a machined surface; a swing command generation unit 17, which generates, on the basis of the surface pattern, a swing command for achieving a surface pattern including a portion in which the intervals of the scratches are unequal; and a position and speed control unit 14 which carries out the machining while swinging the workpiece W and the tool T relatively to each other on the basis of the swing command generated by the swing command generation unit 17.

公开(公告)号：US20190324425A1

公开(公告)日：2019-10-24

申请号：US16378602

申请日：2019-04-09

申请人： FANUC CORPORATION

发明人： Yusaku OHO ,  Kenta YAMAMOTO

IPC分类号： G05B19/4093 ,  G05B19/19 ,  B23B27/22

摘要： A display device acquires and displays information on a machine tool that includes a spindle for relatively rotating workpiece and a cutting tool and feed axes for relatively feeding the workpiece and the cutting tool and that performs machining on the workpiece while making the cutting tool and the workpiece swing relatively, and includes: a first information display unit that displays first information indicating a position to which the cutting tool is relatively fed with respect to the workpiece; a second information display unit that displays second information indicating a relationship between the phase of the spindle and the positions of the feed axes; and a range selection unit that selects part of the first information as a selection range, and the second information display unit changes the display range of the second information such that the display range corresponds to the selection range selected by the range selection unit.

公开(公告)号：US20190310600A1

公开(公告)日：2019-10-10

申请号：US16376494

申请日：2019-04-05

申请人： FANUC CORPORATION

发明人： Kenta YAMAMOTO

IPC分类号： G05B19/18 ,  G05B19/19

摘要： To provide a controller for a machine tool capable of shredding chips and capable of performing machining by cutting correctly without implementation of a so-called finishing process. A controller for a machine tool includes: an oscillation command generation unit that generates an oscillation command for causing a work and a tool to oscillate relative to each other in a radial direction of the work based on a condition for oscillation; a movement command generation unit that generates a movement command for causing the work and the tool to move relative to each other for thread cutting of the work; an adder that adds the oscillation command and the movement command; and a determination unit that predetermines whether the oscillation command is to be added to the movement command, is which the adder outputs a superimposed command configured to include one or more types of machining patterns combining an arbitrary number of a total movement command with the oscillation command added, and an arbitrary number of a total movement command without the oscillation command added, in accordance with a result of determination by the determination unit.

公开(公告)号：US20180335765A1

公开(公告)日：2018-11-22

申请号：US15977508

申请日：2018-05-11

申请人： FANUC CORPORATION

发明人： Junichi TEZUKA ,  Kenta YAMAMOTO

IPC分类号： G05B19/404 ,  B23B29/12 ,  B23B27/22 ,  G05B19/4093

CPC分类号： G05B19/404 ,  B23B27/22 ,  B23B29/125 ,  G05B19/40938 ,  G05B2219/31472

摘要： A display device includes a position information acquisition part, a rotation information acquisition part, a first waveform generation part, a second waveform generation part, and a waveform display part, which displays plural second waveform data. The position information acquisition part acquires position information of a feed axis. The rotation information acquisition part acquires the rotation speed of a workpiece as rotation information of a spindle. The first waveform generation part generates first waveform data representing a change of the position information over time from time series position information of the feed axis. The second waveform generation part generates plural second waveform data by obtaining a time per rotation from the rotation speed, dividing the first waveform data into partial waveform data for time per rotation, and sequentially shifting each partial waveform data in the time axis direction so as to match a start point of the first waveform data.

公开(公告)号：US20230089938A1

公开(公告)日：2023-03-23

申请号：US17904458

申请日：2021-03-04

申请人： FANUC CORPORATION

发明人： Ryou MORIHASHI ,  Kenta YAMAMOTO

IPC分类号： G05B19/18 ,  B23B1/00 ,  B23Q15/12 ,  G05B19/404 ,  G05B19/4093

摘要： To provide a controller for a machine tool that can shred shavings in a sure manner, even if a delay in notification occurs at the time of performing oscillation cutting. This controller of machine tools controls the machine tools that perform cutting working of a work by a cutting tool with a spindle and a feed axis operating cooperatively. The controller includes: an oscillation command calculating unit that calculates an oscillation command to cause relative oscillation of the cutting tool and the work, from a rotation speed of the spindle and a positional command of the cutting tool as to the work; a correction amount calculating unit that calculates a correction amount corresponding to an amount of delay notification to the oscillation command calculating unit regarding the rotation speed of the spindle; and a correction amount superimposing unit that superimposes the correction amount on the oscillation command.

公开(公告)号：US20210101240A1

公开(公告)日：2021-04-08

申请号：US17021820

申请日：2020-09-15

申请人： FANUC CORPORATION

发明人： Yuutarou HORIKAWA ,  Masashi YASUDA ,  Kenta YAMAMOTO

IPC分类号： B23Q15/013 ,  B23G11/00 ,  B23G1/04 ,  B23Q15/08 ,  B23Q17/20

摘要： To provide a control device for a machine tool capable of performing thread cutting while reducing the load on the machine tool from the oscillating operation, without extending the cycle time, and capable of reliably shredding chips in a case of performing the non-oscillating operation in the present pass after the oscillating operation in the previous pass. A control device for a machine tool includes: an oscillating operation execution determination unit that determines whether to execute an oscillating operation that causes the cutting tool to oscillate in the radial direction of the workpiece; an oscillation command generation unit that generates an oscillation command of the oscillating operation based on a determination result; a control unit that superimposes the oscillation command on a position command of the feed axis to generate a drive command. The oscillating operation execution determination unit determines to intermittently execute the oscillating operation, and the oscillation command generation unit generates an oscillation command so that a non-oscillating cutting portion of a present pass includes a portion at which oscillating cutting was performed in a previous pass, or so that an oscillating cutting portion of the present pass includes a portion at which non-oscillating cutting was performed in the previous pass.

公开(公告)号：US20200306916A1

公开(公告)日：2020-10-01

申请号：US16829270

申请日：2020-03-25

申请人： FANUC CORPORATION

发明人： Ryou MORIHASHI ,  Kenta YAMAMOTO

IPC分类号： B23Q17/22 ,  B23Q15/12

摘要： Provided is a servo controller that can prevent an unnecessary cut from being generated during oscillation machining. A servo controller which controls a machine tool 10 that turns a workpiece W by cooperative operation of a plurality of axes includes: an oscillation command generating unit 23 that generates an oscillation command for causing the workpiece W and the tool 11 to relatively oscillate; a deviation deducting unit 31, 241 that applies the oscillation command to a position deviation based on a moving command for causing the workpiece W and the tool 11 to relatively move, and deducts a steady-state position deviation; and a learning control unit 27 that calculates a compensation amount from a position deviation based on the moving command after deducting the steady-state position deviation.

公开(公告)号：US20190310601A1

公开(公告)日：2019-10-10

申请号：US16377670

申请日：2019-04-08

申请人： FANUC CORPORATION

发明人： Kenta YAMAMOTO

IPC分类号： G05B19/18

摘要： To provide a controller for a machine tool capable of shredding chips in any thread cutting method. A controller for a machine tool comprises: an oscillation condition calculation unit that calculates an oscillation amplitude and an oscillation direction allowing shredding of chips occurring from lathe-turning machining based on an infeed amount in a radial direction of a work and a shift amount in a circumferential direction of the work relative to a last machining path of a tool used for the lathe-turning machining on the work; an oscillation command calculation unit that calculates an oscillation command for causing the work and the tool to oscillate relative to each other based on the oscillation amplitude and the oscillation direction calculated by the oscillation condition calculation unit; and an adder that adds a movement command for moving the work and the tool relative to each other for the lathe-turning machining on the work and the oscillation command.

公开(公告)号：US20190033816A1

公开(公告)日：2019-01-31

申请号：US16040545

申请日：2018-07-20

申请人： FANUC CORPORATION

发明人： Kenta YAMAMOTO

IPC分类号： G05B19/18

摘要： A control device includes a command block timing detection unit for detecting arbitrary timing between adjacent command blocks, based on a machining program, which includes a plurality of command blocks, of a machine tool. A feed axis control unit includes a learning controller, and a determination unit that determines whether or not a current time is in the arbitrary timing between the adjacent command blocks, and stops oscillation of at least one feed axis based on the determination.

公开(公告)号：US20180297164A1

公开(公告)日：2018-10-18

申请号：US15951544

申请日：2018-04-12

申请人： FANUC CORPORATION

发明人： Naoto SONODA ,  Kenta YAMAMOTO

IPC分类号： B23Q15/013 ,  B23Q15/14

CPC分类号： B23Q15/013 ,  B23B1/00 ,  B23B25/02 ,  B23Q15/14 ,  B23Q2701/02

摘要： A control device includes a position command generation part, an oscillation command generation part, and a storage part for storing machining operation conditions and servo control conditions. The oscillation command generation part includes an estimation part which estimates an oscillation amplitude and an oscillation frequency of an oscillation command based on a rotation speed of a workpiece and a position command generated by the position command generation part, and a determination part which determines whether or not the estimated oscillation frequency is an optimum value based on the machining operation conditions and the servo control conditions.