NUMERICAL CONTROLLER
    1.
    发明公开
    NUMERICAL CONTROLLER 失效
    数字控制器

    公开(公告)号:EP0383947A1

    公开(公告)日:1990-08-29

    申请号:EP89909628.3

    申请日:1989-08-28

    申请人: FANUC LTD

    IPC分类号: G05B19/23

    CPC分类号: G05B19/231

    摘要: A numerical controller which gives an instruction to a machine tool that uses a main shaft motor (5) to return to the origin, in order to control the position of a tool. The main shaft can be returned to the origin by simply giving an instruction for returning to origin to a main shaft amplifier (SPA) that drives the main shaft motor (5). Prior to CNC-operating the machine tool according to the invention, the grid shifting amount (P 2 ) determined by a relationship of the main shaft motor (5) and the object to be controlled is set to the side of the spindle amplifier (SPA), and position data (P 3 ) corresponding to a distance from the origin of machine to a machining starting point transferred prior to a predetermined position stop instruction and the grid shifting amount (P 2 ) are added up together. Therefore, when the instruction for returning to origin is produced from the numerical controller to the spindle amplifier, the position control is automatically assumed, and the moving operation is started with respect to a desired position.

    摘要翻译: 为了控制工具的位置而向使用主轴电动机(5)返回原点的机床发出指令的数值控制装置。 只需向返回原点的指令返回到驱动主轴电机(5)的主轴放大器(SPA)即可使主轴返回原点。 在CNC操作根据本发明的机床之前,由主轴马达(5)和要控制的物体的关系确定的电网偏移量(P2)被设置到主轴放大器(SPA)的侧面, 将与从机械原点到在预定位置停止指令之前传送的加工起始点的距离相对应的位置数据(P3)与电网偏移量(P2)相加在一起。 因此,当从数值控制器向主轴放大器发出用于返回原点的指令时,自动地假定位置控制,并且相对于期望的位置开始移动操作。

    METHOD OF CONTROLLING SYNCHRONIZED OPERATION OF A MACHINE TOOL
    3.
    发明授权
    METHOD OF CONTROLLING SYNCHRONIZED OPERATION OF A MACHINE TOOL 无效
    机床的同步操作的控制方法

    公开(公告)号:EP0401375B1

    公开(公告)日:1996-01-10

    申请号:EP89908860.3

    申请日:1989-07-28

    申请人: FANUC LTD.

    IPC分类号: G05B19/18 G05D13/62

    摘要: A method of controlling synchronized operation of a machine tool and an apparatus therefor. In a machine tool having two main spindles (14, 15), a work (18) is gripped by the first spindle and the second spindle controlled by control circuits (19, 20) that include a speed control unit and a position control unit. When the work is to be machined under this condition, digital speed instructions are fed to the two spindles simultaneously from, for example, a numerical controller. On each of the main spindles, separation means (sw2) is controlled to separate the position control unit from the speed control unit, the synchronized operation mode is set to switch the speed instruction to the position instruction, and the digital speed instructions are processed as position instructions to carry out the same position control. Therefore, the running speed of the two main spindles are brought into synchronism with each other, and the work is separated into two without giving excess force to the work.

    NUMERICAL CONTROLLER
    4.
    发明公开
    NUMERICAL CONTROLLER 失效
    数字控制器

    公开(公告)号:EP0371146A1

    公开(公告)日:1990-06-06

    申请号:EP89906443.0

    申请日:1989-05-29

    申请人: FANUC LTD

    IPC分类号: G05B19/403

    摘要: A numerical controller having a control function which permits a main axis to be stopped at any absolute position by a drive motor to determine the position of the main axis that controls the positioning. The numerical controller has storage means (6) for storing data related to a motor stop position and the rotational direction included in a control instruction via transfer means (3) which transfers the control instruction to the corresponding drive means, and has calculation means (7) which calculates a drive signal for stopping the motor at a predetermined position based on the stored data and feedback signals related to the speed and position of the motor. With the absolute position such as an angle and the rotational direction up to that position being instructed from the numerical controller, the motor side determines its position by itself.

    摘要翻译: 一种具有控制功能的数字控制器,该控制功能允许主轴通过驱动马达停止在任何绝对位置,以确定控制定位的主轴的位置。 数值控制装置具有存储装置(6),该存储装置(6)经由将控制指令传送给对应的驱动装置的传送装置(3)存储与电动机停止位置有关的数据和包含在控制指令中的旋转方向,并且具有计算装置(7 ),其基于存储的数据和与电动机的速度和位置有关的反馈信号来计算用于使电动机停止在预定位置的驱动信号。 由数值控制器指示绝对位置,例如角度和直到该位置的旋转方向,电机侧自行确定其位置。

    MOTOR CONTROLLER
    5.
    发明公开
    MOTOR CONTROLLER 失效
    MOTORREGELUNG。

    公开(公告)号:EP0375786A1

    公开(公告)日:1990-07-04

    申请号:EP89906431.5

    申请日:1989-05-29

    申请人: FANUC LTD

    IPC分类号: G05B19/403 G05B19/405

    摘要: A motor controller for an NC machine tool having many kinds of motor models. When the control parameters corresponding to the motor models are set from the external side, correct control parameters are set for the motor models to reliably prevent any accident that may be caused by erroneous setting of the control parameters. The motor controller has registration means (22) into which will be registered specific model codes that represent control parameters of the motor models, and storage means (21) that temporarily stores the control parameters that are set and the model codes that are transferred. The model codes registered to the registration means (22) are compared with the model codes that are transferred, to recognize the motor models.

    摘要翻译: 具有多种电动机型号的数控机床电机控制器。 当从外部设置对应于电机型号的控制参数时,为电机型号设置正确的控制参数,以可靠地防止由控制参数的错误设置引起的任何意外。 马达控制器具有登记装置(22),其中将登记表示电动机模型的控制参数的特定型号代码,以及临时存储所设置的控制参数和传送的型号代码的存储装置(21)。 将注册到注册装置(22)的模型代码与传送的模型代码进行比较,以识别电机模型。

    MACHINE TOOL HAVING TWO MAIN SPINDLES
    6.
    发明公开
    MACHINE TOOL HAVING TWO MAIN SPINDLES 失效
    WERKZEUGMASCHINE MIT ZWEI HAUPTSPINDELN。

    公开(公告)号:EP0364593A1

    公开(公告)日:1990-04-25

    申请号:EP89902548.0

    申请日:1989-02-21

    申请人: FANUC LTD

    IPC分类号: G05D13/62 G05B19/416

    摘要: This invention relates to a machine tool having two main spindles which are subject to driving control by servomotors (1 and 2) by giving velocity commands (Vcmdi) and (Vcmd 2 ) for controlling, respectively, the speed of rotation of a first main spindle and that of a second main spindle to speed control circuits (3 and 4), thereby controlling the two main spindles of a machine tool such as a lathe in synchronous operation in order to machine a work efficiently. In the present invention, the angles of rotation of the main spindles are brought into conformity to effect the synchronous operation without fail and to enable a catch of another work during rotation.

    摘要翻译: 本发明涉及一种具有两个主轴的机床,它们通过给出分别用于控制第一主轴的转速和(Vcmd2)的速度指令(Vcmd1)和(Vcmd2),由伺服马达(1和2)进行驱动控制, 第二主轴用于加速控制电路(3和4),从而在同步操作中控制诸如车床的机床的两个主轴以有效地加工。 在本发明中,使主轴的旋转角度达到一致,同时进行同步操作,并且能够在旋转期间抓住另一个工件。

    SYNCHRONIZATION CONTROL OF SPINDLE MOTOR AND FEED MOTOR
    7.
    发明公开
    SYNCHRONIZATION CONTROL OF SPINDLE MOTOR AND FEED MOTOR 失效
    SYNCHRONE STEUERUNG VON SPINDEL- UND VORSCHUBMOTOREN。

    公开(公告)号:EP0331749A1

    公开(公告)日:1989-09-13

    申请号:EP88907772.3

    申请日:1988-09-09

    申请人: FANUC LTD.

    IPC分类号: G05B19/18

    摘要: When a main spindle (10) is rotated and the main spindle and a work are moved linearly and relative to each other in the axial direction (Z) of the main spindle in, for example, the threading of a machine tool, a spindle servo-motor (12) and a feed servo-motor (22) as the driving sources must be actuated while they are being synchronized. Generally, the spin­dle servo-motor drives directly the main spindle without resort to a reduction gear but the feed servo-motor drives a main spindle head (18) through reduction gears (26, 28). Therefore, the synchronization is generally governed by the accelera­tion/deceleration performance of the spindle servo-motor. The synchronization with maximum efficiency can be accom­plished by accelerating and decelerating the main spindle while actuating the spindle servo-motor in line with its torque li­mit curves (L1, L2).

    摘要翻译: 当主轴(10)旋转并且主轴和工件在主轴的轴向(Z)上线性地相对于彼此移动时,例如机床的螺纹,主轴伺服 - 驱动源(12)和作为驱动源的进给伺服电机(22)必须在同步时被致动。 通常,主轴伺服电机直接驱动主轴而不用减速齿轮,但进给伺服电机通过减速齿轮(26,28)驱动主轴头(18)。 因此,同步受主轴伺服电机的加/减速性能的控制。 通过加速和减速主轴,同时按照其转矩限制曲线(L1,L2)驱动主轴伺服电机,可以实现最大效率的同步。

    METHOD AND DEVICE FOR CONTROLLING AT THE TIME OF POWER FAILURE
    8.
    发明授权
    METHOD AND DEVICE FOR CONTROLLING AT THE TIME OF POWER FAILURE 失效
    方法和设备控制电源故障

    公开(公告)号:EP0757306B1

    公开(公告)日:2001-11-28

    申请号:EP96901997.5

    申请日:1996-02-08

    申请人: FANUC LTD

    IPC分类号: G05B19/18 G05B19/406

    摘要: In a machine to be operated such that tools and a work are always brought into synchronism with each other, method and device for controlling at the time of power failure adapted to retract tools to a safe area without breaking the tools and a work at the time of power failure. When a power fails during synchronous operation (S1), a power supply regenerating operation in a power supply regenerating power circuit is halted (S2), sending to a motor for tools and a motor for a work, respectively, braking commands for controlling them to a reduced speed which is good enough to generate regenerating energy needed not only to keep a predetermined synchronism therebetween but also to drive a motor for moving tool shafts (S3), and driving the motor for moving tool shafts with regenerating energy produced through the speed reducing operation of the motor for tools and the motor for a work so as to retract the tools to an area where they do no interfere with the work (S4).

    NUMERICAL CONTROLLER
    10.
    发明授权

    公开(公告)号:EP0383947B1

    公开(公告)日:1995-01-11

    申请号:EP89909628.3

    申请日:1989-08-28

    申请人: FANUC LTD.

    IPC分类号: G05B19/23

    CPC分类号: G05B19/231

    摘要: A numerical controller which gives an instruction to a machine tool that uses a main shaft motor (5) to return to the origin, in order to control the position of a tool. The main shaft can be returned to the origin by simply giving an instruction for returning to origin to a main shaft amplifier (SPA) that drives the main shaft motor (5). Prior to CNC-operating the machine tool according to the invention, the grid shifting amount (P2) determined by a relationship of the main shaft motor (5) and the object to be controlled is set to the side of the spindle amplifier (SPA), and position data (P3) corresponding to a distance from the origin of machine to a machining starting point transferred prior to a predetermined position stop instruction and the grid shifting amount (P2) are added up together. Therefore, when the instruction for returning to origin is produced from the numerical controller to the spindle amplifier, the position control is automatically assumed, and the moving operation is started with respect to a desired position.