公开(公告)号：US5528506A

公开(公告)日：1996-06-18

申请号：US510771

申请日：1995-08-03

申请人： Jun Yoshida ,  Akira Kawana ,  Masashi Tanuma ,  Nobuo Kurisaki ,  Norio Mori

发明人： Jun Yoshida ,  Akira Kawana ,  Masashi Tanuma ,  Nobuo Kurisaki ,  Norio Mori

IPC分类号： G05B19/4103 ,  G05B19/416

CPC分类号： G05B19/416 ,  G05B19/4103 ,  G05B2219/43009 ,  G05B2219/43129 ,  G05B2219/43203

摘要： The tolerable maximum feed rate Fd is calculated in real time during operation based on the tolerable minimum moving time Ta to be determined by the data interpretation and the moving distance L of each machining block. If the command feed rate Fc exceeds the tolerable maximum feed rate Fd, the actual feed rate for the block is set to the tolerable maximum feed rate Fd, thereby realizing smooth deceleration and preventing mechanical shock of the machine tool and reduction in machining accuracy. Required time for each processing element is determined in advance, the sum of processing times corresponding each element is calculated by judging the processing mode element contained in machining for each block. Then, the feed rate is controlled by determining the tolerable minimum moving time for each block based on the calculated sum of processing times.

摘要翻译： 基于由数据解释确定的可容许的最小移动时间Ta和每个加工块的移动距离L，在运行期间实时计算可容许的最大进给速率Fd。 如果指令进给速度Fc超过允许的最大进给速度Fd，则块的实际进给速度被设定为允许的最大进给速度Fd，从而实现平滑的减速并防止机床的机械冲击并降低加工精度。 预先确定每个处理元件的所需时间，通过判断每个块的加工中包含的处理模式元素来计算对应于每个元素的处理时间的总和。 然后，通过基于计算出的处理时间的和来确定每个块的可容许的最小移动时间来控制进给速率。

公开(公告)号：US09477218B2

公开(公告)日：2016-10-25

申请号：US13823663

申请日：2011-10-26

申请人： Akira Kawana ,  Norio Mori ,  Mitsunari Oda

发明人： Akira Kawana ,  Norio Mori ,  Mitsunari Oda

IPC分类号： G05B19/18 ,  G06F19/00 ,  G05B13/00 ,  G05D23/275 ,  G05B19/404

CPC分类号： G05B19/182 ,  G05B19/404 ,  G05B2219/41078 ,  G05B2219/41083 ,  G05B2219/41155 ,  G05B2219/41206 ,  G05B2219/42039 ,  G05B2219/49182

摘要： A numerical control device which controls a feed axis of a machine tool has a storage unit which divides a range of movement of the feed axis into a plurality of regions and stores a plurality of control parameters corresponding to the divided plurality of regions in advance, a position detection unit which detects a position of a feed axis at the time of machining a workpiece, a parameter selection unit which reads out control parameters corresponding to a divided region to which the detected feed axis position at the time of machining a workpiece belongs, and a servo control unit which controls the feed axis using the read control parameters. Due to this, it is possible to provide a numerical control method of a machine tool which realizes stable machining precision without regard as to the feed axis position and a numerical control device which conducts that method.

摘要翻译： 控制机床的进给轴的数控装置具有将进给轴的移动范围分割成多个区域的存储部，并且预先存储与分割的多个区域对应的多个控制参数， 位置检测单元，其检测加工工件时的进给轴的位置;参数选择单元，其读出与加工工件所属的检测到的进给轴位置所属的分割区域相对应的控制参数;以及 伺服控制单元，其使用读取的控制参数来控制进给轴。 由此，能够提供不依赖于进给轴位置而实现稳定的加工精度的机床的数控方法，以及进行该方法的数控装置。

公开(公告)号：US09360849B2

公开(公告)日：2016-06-07

申请号：US13824305

申请日：2011-10-26

申请人： Akira Kawana ,  Norio Mori ,  Mitsunari Oda

发明人： Akira Kawana ,  Norio Mori ,  Mitsunari Oda

IPC分类号： G05B13/02 ,  G05B5/01 ,  G05B19/19 ,  G05B19/416

CPC分类号： G05B13/024 ,  G05B5/01 ,  G05B19/19 ,  G05B19/416 ,  G05B2219/36176 ,  G05B2219/42114

摘要： In this numerical control method that drives the feed shaft of a machine tool (10) by means of a servo control unit (52), a transmission function is determined by modeling the operation of the servo control unit (52) of the feed shaft, the closed loop transmission function (GBP) of the position loop and/or the closed loop transmission function of the velocity loop of the servo control unit (52) of the machine tool is measured using the frequency response of the feed shaft, the control subject (PP) of the position loop and/or the control subject of the velocity loop is determined using the measured closed loop transmission function, the position loop modeling error (ΔPP) and/or the velocity loop modeling error is determined from the control subject, and at least one control parameter of the servo control unit (52) is calculated using the closed loop transmission function and/or the modeling error. As a result, the optimum plurality of control parameters corresponding to the state of the feed shaft is determined easily and automatically.

摘要翻译： 在通过伺服控制单元（52）驱动机床（10）的进给轴的数值控制方法中，通过对进给轴的伺服控制单元（52）的操作进行建模来确定传动功能， 使用进给轴的频率响应来测量机床的伺服控制单元（52）的速度环的位置回路的闭环传递功能（GBP）和/或闭环传递功能，控制对象 使用测量的闭环传递函数确定位置回路和/或速度环路的控制对象的（PP），并且从控制器确定位置环建模误差（＆Dgr; PP）和/或速度环模型误差 并且使用闭环传递函数和/或建模误差来计算伺服控制单元（52）的至少一个控制参数。 结果，容易且自动地确定与供给轴的状态对应的最佳多个控制参数。

公开(公告)号：US20130173045A1

公开(公告)日：2013-07-04

申请号：US13823663

申请日：2011-10-26

申请人： Akira Kawana ,  Norio Mori ,  Mitsunari Oda

发明人： Akira Kawana ,  Norio Mori ,  Mitsunari Oda

IPC分类号： G05B19/18

CPC分类号： G05B19/182 ,  G05B19/404 ,  G05B2219/41078 ,  G05B2219/41083 ,  G05B2219/41155 ,  G05B2219/41206 ,  G05B2219/42039 ,  G05B2219/49182

摘要： A numerical control device which controls a feed axis of a machine tool (10) has a storage unit (92) which divides a range of movement of the feed axis into a plurality of regions and stores a plurality of control parameters corresponding to said divided plurality of regions in advance, a position detection unit which detects a position of a feed axis at the time of machining a workpiece, a parameter selection unit (90) which reads out control parameters corresponding to a divided region to which the detected feed axis position at the time of machining a workpiece belongs, and a servo control unit (52) which controls the feed axis using said read control parameters. Due to this, it is possible to provide a numerical control method of a machine tool which realizes stable machining precision without regard as to the feed axis position and a numerical control device which conducts that method.

摘要翻译： 控制机床（10）的进给轴的数控装置具有将进给轴的移动范围分割为多个区域的存储部（92），并存储与所述分割多个对应的多个控制参数 提前检测出进给轴位置的位置检测单元，读取与检测到的进给轴位置相对应的分割区域的控制参数的参数选择单元（90） 加工工件的时间属于伺服控制单元（52），该伺服控制单元使用所述读取控制参数来控制进给轴。 由此，能够提供不依赖于进给轴位置而实现稳定的加工精度的机床的数控方法，以及进行该方法的数控装置。

公开(公告)号：US09588509B2

公开(公告)日：2017-03-07

申请号：US13823797

申请日：2011-10-26

申请人： Akira Kawana ,  Norio Mori ,  Mitsunari Oda

发明人： Akira Kawana ,  Norio Mori ,  Mitsunari Oda

IPC分类号： G05B19/18 ,  G05B19/404

CPC分类号： G05B19/182 ,  G05B19/404 ,  G05B2219/41078 ,  G05B2219/41084 ,  G05B2219/41115

摘要： 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.

摘要翻译： 校正在数控机床的进给轴的反转时发生的棒运动的棒运动校正方法，对于每个预定控制，从数控机床的NC程序存储要向伺服电机指令的位置命令 期间从当前位置命令到后一位置指令，基于存储的位置指令计算反转校正命令，计算用于将反转校正命令的相加的定时的推进时间从反转定时计算到电动机的速度或转矩指令 伺服电动机的运转信息，根据伺服电机的运转时间，将伺服电机的速度或转矩指令的反转校正指令加到正确的位置，在伺服电机的反转定时提前精确地校正棒运动， 时间。

公开(公告)号：US20130173046A1

公开(公告)日：2013-07-04

申请号：US13823797

申请日：2011-10-26

申请人： Akira Kawana ,  Norio Mori ,  Mitsunari Oda

发明人： Akira Kawana ,  Norio Mori ,  Mitsunari Oda

IPC分类号： G05B19/18

CPC分类号： G05B19/182 ,  G05B19/404 ,  G05B2219/41078 ,  G05B2219/41084 ,  G05B2219/41115

摘要： 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.

摘要翻译： 校正在数控机床的进给轴的反转时发生的棒运动的棒运动校正方法，对于每个预定控制，从数控机床的NC程序存储要向伺服电机指令的位置命令 期间从当前位置命令到后一位置指令，基于存储的位置指令计算反转校正命令，计算用于将反转校正命令的相加的定时的推进时间从反转定时计算到电动机的速度或转矩指令 伺服电动机的运转信息，根据伺服电机的运转时间，将伺服电机的速度或转矩指令的反转校正指令加到正确的位置，在伺服电机的反转定时提前精确地校正棒运动， 时间。

公开(公告)号：US20130173026A1

公开(公告)日：2013-07-04

申请号：US13824305

申请日：2011-10-26

申请人： Akira Kawana ,  Norio Mori ,  Mitsunari Oda

发明人： Akira Kawana ,  Norio Mori ,  Mitsunari Oda

IPC分类号： G05B19/416

CPC分类号： G05B13/024 ,  G05B5/01 ,  G05B19/19 ,  G05B19/416 ,  G05B2219/36176 ,  G05B2219/42114

摘要： In this numerical control method that drives the feed shaft of a machine tool (10) by means of a servo control unit (52), a transmission function is determined by modeling the operation of the servo control unit (52) of the feed shaft, the closed loop transmission function (GBP) of the position loop and/or the closed loop transmission function of the velocity loop of the servo control unit (52) of the machine tool is measured using the frequency response of the feed shaft, the control subject (PP) of the position loop and/or the control subject of the velocity loop is determined using the measured closed loop transmission function, the position loop modeling error (ΔPP) and/or the velocity loop modeling error is determined from the control subject, and at least one control parameter of the servo control unit (52) is calculated using the closed loop transmission function and/or the modeling error. As a result, the optimum plurality of control parameters corresponding to the state of the feed shaft is determined easily and automatically.

摘要翻译： 在通过伺服控制单元（52）驱动机床（10）的进给轴的数值控制方法中，通过对进给轴的伺服控制单元（52）的操作进行建模来确定传动功能， 使用进给轴的频率响应来测量机床的伺服控制单元（52）的速度环的位置回路的闭环传递功能（GBP）和/或闭环传递功能，控制对象 使用测量的闭环传递函数来确定位置环的位置环和/或速度环的控制对象的位置环（PP），并且从控制对象确定位置环建模误差（DeltaPP）和/或速度环建模误差， 并且使用闭环传递函数和/或建模误差来计算伺服控制单元（52）的至少一个控制参数。 结果，容易且自动地确定与供给轴的状态对应的最佳多个控制参数。

公开(公告)号：US06291959B1

公开(公告)日：2001-09-18

申请号：US09529538

申请日：2000-04-07

申请人： Jun Yoshida ,  Yoshikatsu Teraoka ,  Norio Mori

发明人： Jun Yoshida ,  Yoshikatsu Teraoka ,  Norio Mori

IPC分类号： G05B1918

CPC分类号： G05B19/406 ,  G05B19/404 ,  G05B2219/49204

摘要： A method and an apparatus for controlling a numerically controlled machine tool, wherein the heat generation amount and the temperature of a drive unit including a servo amplifier 15b and a feed shaft motor 3 are computed by a drive unit heat generation amount computing unit 31 by simulation, and from the computed heat generation amount and the computed temperature, the total heat generation amount of the drive unit, the cutting feed heat generation amount, the cutting load heat generation amount, etc. are computed by a feed heat generation amount computing unit 39, so that the cutting feed rate override value of the numerically controlled machine tool 1 is computed by a cutting feed rate override computing unit 27 and effectuated by being output to a NC unit. Further, based on the temperature of the drive unit computed by a computing unit 31 or the temperature computed by a temperature data computing unit 47 or the temperature detected by a temperature detection sensor 49, etc., the proper values of the feed acceleration/deceleration time constants &tgr;r and &tgr;c are computed and output as a ratio with respect to the set and stored initial values &tgr;r0 and &tgr;C0 thereby to control the NC commanded rate. The overheating of the feed axis drive unit is prevented while at the same time improving the machining efficiency.

摘要翻译： 一种用于控制数控机床的方法和装置，其中包括伺服放大器15b和进给轴电机3的驱动单元的发热量和温度由驱动单元发热量计算单元31通过模拟计算 ，并且根据计算出的发热量和计算出的温度，通过供给发热量计算单元39计算驱动单元的总发热量，切割供给发热量，切割负载发热量等 ，使得数控机床1的切削进给速度超越值由切削进给速度超越计算单元27计算，并通过输出到NC单元来实现。 此外，基于由计算单元31计算的驱动单元的温度或由温度数据计算单元47计算的温度或由温度检测传感器49等检测的温度，进给加速/减速的适当值 时间常数＆tgr; r 和＆tgr; c 被计算并作为相对于设置和存储的初始值＆tgr; r0 和 ＆tgr; C0 ，从而控制NC指令速率。 防止进给轴驱动单元的过热，同时提高加工效率。

公开(公告)号：US08680806B2

公开(公告)日：2014-03-25

申请号：US12769939

申请日：2010-04-29

申请人： Norio Mori ,  Tadashi Kasahara ,  Tadahiro Nishiguchi

发明人： Norio Mori ,  Tadashi Kasahara ,  Tadahiro Nishiguchi

IPC分类号： G05D23/275

CPC分类号： G05B19/404 ,  B23Q17/22 ,  G05B19/4015 ,  G05B2219/33078 ,  G05B2219/37123 ,  G05B2219/39056 ,  G05B2219/49344 ,  G05B2219/50057 ,  G05B2219/50297

摘要： A numerically controlled machine tool has a linear and rotational feed and 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 and rotational feed axes to specified position and attitude, and correcting a movement command based on measured error data, the 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 prepared by collecting a plurality of the error data corresponding to positions and rotation angles of the linear and rotational feed axes, and a correction data computing means which compute correction data for correcting movement command from a command position for the linear and rotational feed axes and the error data stored in the error data storage means.

摘要翻译： 数控机床具有线性和旋转进给，并且具有通过将线性和旋转进给轴定位到指定位置和姿态而预先测量相对位置的误差和主轴相对于工作台的相对姿态的功能 ，并且基于测量的误差数据校正运动命令，所述数据是包含位置误差和姿态误差的多维数据。 机床包括：误差数据存储装置，存储通过收集对应于线性和旋转进给轴的位置和旋转角度的多个误差数据而准备的误差图;以及校正数据计算装置，其计算用于校正运动的校正数据 来自用于线性和旋转进给轴的命令位置的命令和存储在错误数据存储装置中的错误数据。

公开(公告)号：US08786243B2

公开(公告)日：2014-07-22

申请号：US12740126

申请日：2007-11-02

申请人： Norio Mori ,  Tadashi Kasahara ,  Tadahiro Nishiguchi

发明人： Norio Mori ,  Tadashi Kasahara ,  Tadahiro Nishiguchi

IPC分类号： G05D23/275 ,  B23Q17/22 ,  G05B19/401 ,  G05B19/404

CPC分类号： G05B19/404 ,  B23Q17/22 ,  G05B19/4015 ,  G05B2219/33078 ,  G05B2219/37123 ,  G05B2219/39056 ,  G05B2219/49344 ,  G05B2219/50057 ,  G05B2219/50297

摘要： 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.

摘要翻译： 在具有线性进给轴线和旋转进给轴线的数控机床中，主轴和工作台相对于彼此可移动，通过直线进给轴线的操作产生位置误差和姿态误差， 在设置在线性进给轴和旋转进给轴的可移动范围内的多个测量点处测量旋转进给轴，并且将如此测量的位置误差和姿态误差作为误差图存储为对应于 线性进给轴线和旋转进给轴线的旋转角度。