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    • 2. 发明授权
    • Method of controlling synchronous operation of machine tool
    • 控制机床同步运行的方法
    • US5083066A
    • 1992-01-21
    • US460105
    • 1990-02-09
    • Katsuo KohariShinichi KonoMasaaki Fukukura
    • Katsuo KohariShinichi KonoMasaaki Fukukura
    • H02P5/52G05B19/18H02P5/50
    • H02P5/50G05B19/182G05B2219/42104G05B2219/50221G05B2219/50234G05B2219/50387
    • In a machine tool having first and second spindles, which are connected to respective spindle motors and control circuits each control circuit including a velocity controller and a position controller, and which simultaneously grasp the same workpiece, in which state the workpiece is subjected to machining. At such time, a digital velocity command provided by, e.g., a numerical control unit, is supplied to the two spindles simultaneously, switches for isolating the position controller from the velocity controller at each spindle is controlled at the respective spindle, a synchronous operation mode, which changes over the velocity command to a position command, is established, and the digital velocity command value is processed as a position command, whereby the two spindles are subjected to identical positional control. As a result, the rpm's of the spindles are synchronized and the workpiece can be machined and separated into two parts without subjecting it to excessive force.
    • PCT No.PCT / JP89 / 00779 Sec。 371日期1990年2月9日 102(e)1990年2月9日PCT PCT 1989年7月28日PCT公布。 出版物WO90 / 01829 日期1990年02月22日。在具有第一和第二主轴的机床中,其连接到相应的主轴电机和控制电路,每个控制电路包括速度控制器和位置控制器,并同时抓住相同的工件,在该状态下 对工件进行加工。 此时,由数控单元提供的数字速度指令同时被提供给两个主轴,用于将位置控制器与每个主轴处的速度控制器隔离的开关被控制在相应的主轴处,同步操作模式 ,将速度指令改变为位置指令,并将数字速度指令值作为位置指令进行处理,由此使两个主轴进行相同的位置控制。 因此,主轴的转速是同步的,工件可以被加工和分离成两部分,而不会受到过大的压力。
    • 5. 发明授权
    • Method of synchronous control of spindle motor and feed motor
    • 主轴电机和进给电机的同步控制方法
    • US5010286A
    • 1991-04-23
    • US365158
    • 1989-05-08
    • Kosei NakamuraShinichi KonoKazuhisa NumaiMasami Kimijima
    • Kosei NakamuraShinichi KonoKazuhisa NumaiMasami Kimijima
    • G05D13/62G05B19/18
    • G05B19/186G05B2219/42186G05B2219/45216G05B2219/49295
    • When a spindle (10) of a machine tool is rotated and moved relative to a workpiece linearly along an axis (Z) thereof during a machining process such as screw cutting, a spindle servomotor (12) and a feed servomotor (22), each of which is the primary drive, must be rotated synchronously. In general, the spindle servomotor directly drives the spindle without a reduction gear, and the feed servomotor feeds a spindle head (18) through reduction gears (26, 28). Therefore, in general, the synchronous work is controlled in accordance with an acceleration and deceleration capacity of the spindle servomotor. Consequently, the spindle servomotor is rotated along the torque limit curve line (L1, L2) to drive the spindle, to thereby effect the synchronous work at a high efficiency.
    • PCT No.PCT / JP88 / 00907 Sec。 371日期1989年5月8日 102(e)日期1989年5月8日PCT申请日1988年9月9日PCT公布。 出版物WO89 / 02618 当机床的主轴(10)在诸如螺旋切削的加工过程中沿其轴线(Z)相对于工件线性地旋转和移动时,主轴伺服电动机(12)和 每个主驱动器的进给伺服电动机(22)必须同步旋转。 通常,主轴伺服电动机直接驱动主轴而没有减速齿轮,进给伺服电动机通过减速齿轮(26,28)供给主轴头(18)。 因此,通常,根据主轴伺服电动机的加减速能力来控制同期动作。 因此,主轴伺服电动机沿着转矩极限曲线(L1,L2)旋转以驱动主轴,从而以高效率进行同步工作。
    • 6. 发明申请
    • Motor Driver
    • 电机驱动器
    • US20050151658A1
    • 2005-07-14
    • US10905434
    • 2005-01-04
    • Shinichi KonoShinichi HorikoshiMasami KimijimaMamoru Yaeshima
    • Shinichi KonoShinichi HorikoshiMasami KimijimaMamoru Yaeshima
    • B60L3/00G01R31/12G01R31/34H02K11/00G08B21/00
    • G01R31/343B60L3/0023G01R31/12
    • A motor driver capable of detecting the insulation deterioration of a motor easily and inexpensively is disclosed. The voltage supplied from an AC power supply (1) is rectified by a first rectifying circuit (D1 to D6) and smoothed by a capacitor (C) in a power supply unit (6). The output voltage of the power supply unit (6) is converted into an AC voltage of a frequency and a motor (M) is driven by a motor drive amplifier (8). Elements (R1, C2, R11, C21) are connected between at least one of the positive electrode (4) and the negative electrode (5) of the output line (4, 5) of the power supply unit (6) and the ground (G2, G4). An insulation deterioration circuit (10, 11, 12) detects at least one of the voltage between the elements and the current flowing through the elements.
    • 公开了能够容易且廉价地检测电动机的绝缘劣化的电动机驱动器。 由交流电源(1)提供的电压由第一整流电路(D1至D6)整流,并在电源单元(6)中被电容器(C)平滑。 电源单元(6)的输出电压被转换为频率的交流电压,电动机(M)由电机驱动放大器(8)驱动。 元件(R 1,C 2,R 11,C 21)连接在电源单元(6)的输出线(4,5)的正极(4)和负极(5)中的至少一个 )和地面(G 2,G 4)。 绝缘劣化电路(10,11,12)检测元件之间的电压和流过元件的电流中的至少一个。
    • 9. 发明授权
    • Main spindle rotation control method
    • 主轴旋转控制方式
    • US5319288A
    • 1994-06-07
    • US13172
    • 1993-01-29
    • Shinichi KonoMasaaki Fukukura
    • Shinichi KonoMasaaki Fukukura
    • G05B19/18G05B19/416H02P7/00
    • G05B19/182G05B19/416G05B2219/50216G05B2219/50234G05B2219/50387
    • A main spindle rotation control method capable of preventing a workpiece from being twisted during the delivery of the workpiece between two main spindles of a machine. When the rotating speeds of first and second main spindles (100, 200) reach a synchronous rotating velocity as a result of a speed loop control executed by velocity control sections (111, 211) of first and second spindle control circuits (110, 210), position loop control is executed by position control sections (112, 212) of these control circuits, and each main spindle is driven to be decelerated in accordance with the rotational phase of each main spindle, and the velocity loop control is then executed again, to bring the main spindles to rotate in the same phase and at the same synchronous rotating speed. When the delivery of the workpiece (300) between the main spindles is started under this condition, integral control in both the velocity control sections is invalidated. Thus, even if a difference is present between the rotating speeds of the two main spindles at the start of the workpiece delivery, due to fluctuations in the main spindle rotating speeds, a difference between torque commands from the velocity control sections, attributable to the difference between the main spindle rotating speeds, never be gradually increased by the integral control, to thereby prevent the workpiece from being twisted.
    • 一种主轴旋转控制方法,其能够防止工件在机器的两个主轴之间传送期间扭曲。 当由第一和第二主轴控制电路(110,210)的速度控制部分(111,211)执行的速度环控制,第一和第二主轴(100,200)的转速达到同步转速时, ,通过这些控制电路的位置控制部(112,212)执行位置环控制,并且根据各主轴的转动相位使每个主轴被驱动减速,然后再次执行速度环控制, 使主轴在相同的相位和相同的同步转速下旋转。 当在这种条件下启动主轴之间的工件(300)的输送时,两个速度控制部分的积分控制无效。 因此,即使在工件传送开始时两个主轴的旋转速度之间存在差异,由于主轴转速的波动,来自速度控制部的转矩指令之间的差异归因于差异 在主轴转速之间,通过积分控制不会逐渐增加,从而防止工件扭曲。
    • 10. 发明授权
    • Numerical control apparatus
    • 数控装置
    • US5081407A
    • 1992-01-14
    • US469460
    • 1990-04-02
    • Shinichi KonoHironobu Takahashi
    • Shinichi KonoHironobu Takahashi
    • G05B19/18G05B19/19G05B19/23G05D3/12
    • G05B19/231
    • A numerical control apparatus according to the present invention is such that when a machine tool using a spindle motor (5) is commanded to perform a reference-point return operation and positional control of a tool or the like is carried out in response to this command, spindle reference-point return is made possible merely by applying the reference-point return command to a spindle amplifier (SPA) which drives the spindle motor (5). In accordance with the invention, a grid-shift quantity (P2) decided by the relationship between the spindle motor (5) and the object controlled thereby is set in advance on the side of the spindle amplifier (SPA) before numerical control unit (CNC) operation of the machine tool. The grid-shift quantity (P2) is added to position data (P3), which corresponds to the distance from a machine reference point to a machining starting point transferred before a fixed-position stopping command. Therefore, when the reference-point return command is outputted from the numerical control apparatus to the side of the spindle amplifier, a transition is made automatically to positional control to start movement with respect to a target position.
    • PCT No.PCT / JP89 / 00873 Sec。 371日期1990年04月2日 102(e)1990年4月2日PCT PCT 1989年8月28日PCT公布。 WO90 / 02367 PCT出版物 1990年3月8日。根据本发明的数值控制装置是这样的,当使用主轴电动机(5)的机床进行参考点返回操作和工具等的位置控制时 根据该指令进行,仅通过将基准点返回指令应用于驱动主轴电动机(5)的主轴放大器(SPA)来实现主轴参考点返回。 根据本发明,在数控单元(CNC)之前,预先在主轴放大器(SPA)侧设置由主轴电动机(5)与被控制物体之间的关系决定的电网移动量(P2) )操作机床。 网格位移量(P2)被添加到位置数据(P3),该位置数据对应于在固定位置停止命令之前传送的从机器参考点到加工起点的距离。 因此,当从数控装置向主轴放大器的一侧输出基准点返回指令时,自动转换到相对于目标位置开始移动的位置控制。