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公开(公告)号：US07496415B2
公开(公告)日：2009-02-24
申请号：US11442155
申请日：2006-05-30
申请人： Souichi Toyama , Yaichi Okubo
发明人： Souichi Toyama , Yaichi Okubo
IPC分类号： G06F19/00
CPC分类号： G05B19/21 , G05B2219/41144 , G05B2219/41186 , G05B2219/41232 , G05B2219/45165
摘要： A digital servo control unit which uses a D/A converter, which suppresses the spike-like pulsation superimposed on a current error signal inside a current control circuit, and which has control performance not lower than that in the background art even when a low-voltage and low-price power supply circuit is used. A first-order low pass filter acts on an analog signal output by the D/A converter, and a stabilizing compensation occurs for a phase delay caused by the first-order low pass filter. The first-order low pass filter is formed as a low pass filter having a cut-off frequency which is lower than a sampling frequency. The first-order low pass filter may be replaced by a notch filter having a cut-off frequency which is equal to a sampling frequency or which is equal to an integer multiple of a Nyquist frequency.
摘要翻译： 一种数字伺服控制单元，其使用D / A转换器，其抑制叠加在电流控制电路内的电流误差信号上的尖状脉动，并且其控制性能不低于背景技术的控制性能， 使用电压和低价电源电路。 一阶低通滤波器作用于由D / A转换器输出的模拟信号，并且由一阶低通滤波器引起的相位延迟发生稳定补偿。 一阶低通滤波器形成为具有低于采样频率的截止频率的低通滤波器。 一阶低通滤波器可以由具有等于采样频率或等于奈奎斯特频率的整数倍的截止频率的陷波滤波器代替。
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12.发明申请公开(公告)号：US20070227773A1
公开(公告)日：2007-10-04
申请号：US11707153
申请日：2007-02-16
申请人： Takashi Ono , Souichi Toyama , Yaichi Okubo , Hiromu Hirai
发明人： Takashi Ono , Souichi Toyama , Yaichi Okubo , Hiromu Hirai
CPC分类号： G05B19/231 , G05B2219/41029 , G05B2219/41127 , G05B2219/45139
摘要： A positioning control system for positioning a moving element on a basis of position command data is provided with a feedback loop. The system is also provided with a loop gain modifier for determining a loop gain, which is to be used in a following positioning operation, on a basis of a difference between an amount of overshoot measured in a current positioning operation and a predetermined tolerance or on a basis of a difference between an amount of overshoot measured in a current positioning operation and a first predetermined tolerance and a difference between an amount of undershoot measured in the current positioning operation and a second predetermined tolerance. The first and second tolerances may preferably be the same in absolute value. The moving element may specifically be a steerable mirror for drilling holes in a work by reflecting a laser beam. Also disclosed is a laser drilling machine including the system.
摘要翻译： 基于位置指令数据定位移动元件的定位控制系统具有反馈回路。 该系统还设置有环路增益修正器，用于基于在当前定位操作中测量的过冲量与预定公差之间的差异或者在预定公差上基于在随后的定位操作中使用的环路增益来确定环路增益， 在当前定位操作中测量的过冲量与第一预定公差之间的差异与在当前定位操作中测量的下冲量之差与第二预定公差之间的差的基础。 第一和第二公差可以优选地具有相同的绝对值。 移动元件可以具体地是用于通过反射激光束在工件中钻孔的可操纵镜。 还公开了一种包括该系统的激光钻孔机。
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公开(公告)号：US20060271232A1
公开(公告)日：2006-11-30
申请号：US11442155
申请日：2006-05-30
申请人： Souichi Toyama , Yaichi Okubo
发明人： Souichi Toyama , Yaichi Okubo
IPC分类号： G06F19/00
CPC分类号： G05B19/21 , G05B2219/41144 , G05B2219/41186 , G05B2219/41232 , G05B2219/45165
摘要： There is provided a digital servo control unit which uses a D/A converter, which suppresses the spike-like pulsation superimposed on a current error signal inside a current control circuit, and which has control performance not lower than that in the background art even when a low-voltage and low-price power supply circuit is used. The digital servo control unit has a first-order low pass filter acting on an analog signal output by the D/A converter, and a stabilizing compensation means for compensating a phase delay caused by the first-order low pass filter. An output signal of the first-order low pass filter is input to a current control circuit as a current command signal. The first-order low pass filter is formed as a low pass filter having a cut-off frequency which is lower than a sampling frequency. The first-order low pass filter may be replaced by a notch filter having a cut-off frequency which is equal to a sampling frequency or which is equal to an integer multiple of a Nyquist frequency.
摘要翻译： 提供了一种数字伺服控制单元，其使用D / A转换器，其抑制叠加在电流控制电路内的电流误差信号上的尖状脉动，并且具有不低于背景技术的控制性能，即使当 使用低电压和低价格的电源电路。 数字伺服控制单元具有作用于由D / A转换器输出的模拟信号的一阶低通滤波器，以及用于补偿由一阶低通滤波器引起的相位延迟的稳定补偿装置。 一级低通滤波器的输出信号作为电流指令信号输入到电流控制电路。 一阶低通滤波器形成为具有低于采样频率的截止频率的低通滤波器。 一阶低通滤波器可以由具有等于采样频率或等于奈奎斯特频率的整数倍的截止频率的陷波滤波器代替。
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公开(公告)号：US20080036309A1
公开(公告)日：2008-02-14
申请号：US11833695
申请日：2007-08-03
申请人： Souichi Toyama , Kounosuke Kitamura , Akira Doi , Hiromu Hirai , Kenta Seki , Yoshiaki Kano
发明人： Souichi Toyama , Kounosuke Kitamura , Akira Doi , Hiromu Hirai , Kenta Seki , Yoshiaki Kano
IPC分类号： H02K33/00
摘要： A rocking actuator and a laser machining apparatus which can suppress a temperature rise of a permanent magnet in a moving-magnet actuator. Even when a steerable mirror is positioned by rapid and continuous motions, highly reliable machining can be performed without degrading machining throughput or hole position accuracy. A cooling jacket for cooling a casing and heat transfer units brought into contact with a coil and the casing are provided. Heat generated in the coil is introduced to the casing through the heat transfer bypass units. Thus, the temperature rise of the coil is suppressed. Radial grooves are provided in the permanent magnet opposed to the coil so as to prevent an eddy current from appearing therein. Groove depth is made not smaller than skin depth expressed by a function of volume resistivity and permeability of the permanent magnet and a fundamental frequency of a current applied to the coil.
摘要翻译： 可以抑制移动磁体致动器中的永磁体的温度升高的摆动致动器和激光加工装置。 即使通过快速连续的运动来定位可转向的镜子，也可以在不降低加工吞吐量或孔位置精度的情况下执行高度可靠的加工。 提供了用于冷却壳体的冷却套和与线圈和壳体接触的传热单元。 在线圈中产生的热量通过传热旁路单元引入壳体。 因此，线圈的温度上升被抑制。 在与线圈相对的永磁体中设置有径向槽，以防止其中出现涡流。 凹槽深度不小于由永磁体的体积电阻率和磁导率函数表示的皮肤深度以及施加到线圈的电流的基频。
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公开(公告)号：US07629714B2
公开(公告)日：2009-12-08
申请号：US11833695
申请日：2007-08-03
申请人： Souichi Toyama , Kounosuke Kitamura , Akira Doi , Hiromu Hirai , Kenta Seki , Yoshiaki Kano
发明人： Souichi Toyama , Kounosuke Kitamura , Akira Doi , Hiromu Hirai , Kenta Seki , Yoshiaki Kano
IPC分类号： H02K33/00
摘要： A rocking actuator and a laser machining apparatus which can suppress a temperature rise of a permanent magnet in a moving-magnet actuator. Even when a steerable mirror is positioned by rapid and continuous motions, highly reliable machining can be performed without degrading machining throughput or hole position accuracy. A cooling jacket for cooling a casing and heat transfer units brought into contact with a coil and the casing are provided. Heat generated in the coil is introduced to the casing through the heat transfer bypass units. Thus, the temperature rise of the coil is suppressed. Radial grooves are provided in the permanent magnet opposed to the coil so as to prevent an eddy current from appearing therein. Groove depth is made not smaller than skin depth expressed by a function of volume resistivity and permeability of the permanent magnet and a fundamental frequency of a current applied to the coil.
摘要翻译： 可以抑制移动磁体致动器中的永磁体的温度升高的摆动致动器和激光加工装置。 即使通过快速连续的运动来定位可转向的镜子，也可以在不降低加工吞吐量或孔位置精度的情况下执行高度可靠的加工。 提供了用于冷却壳体的冷却套和与线圈和壳体接触的传热单元。 在线圈中产生的热量通过传热旁路单元引入壳体。 因此，线圈的温度上升被抑制。 在与线圈相对的永磁体中设置有径向槽，以防止其中出现涡流。 凹槽深度不小于由永磁体的体积电阻率和磁导率函数表示的皮肤深度以及施加到线圈的电流的基频。
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公开(公告)号：US08780429B2
公开(公告)日：2014-07-15
申请号：US13282837
申请日：2011-10-27
CPC分类号： H02K33/00 , G02B26/105 , H02K1/276 , H02K1/2766 , H02K21/12 , H02K21/14 , H02K26/00 , H02K2213/03
摘要： A galvanoscanner including: a rotor including a shaft as a rotational center, and permanent magnets disposed around the shaft and polarized to a plurality of poles in a circumferential direction of the shaft; and a stator disposed in the outside of the rotor through a clearance and including coils, a yoke, and an outer casing so that the rotor swings in a predetermined angle range; wherein: the permanent magnets are provided with grooves which are formed in a direction of the rotation shaft so as to straddle circumferentially adjacent magnetic poles of the permanent magnets; and the permanent magnets are parted into at least two parts per pole by parting lines. Thus, the ratio of the torque constant to the moment of inertia can be improved so that the current required for driving can be reduced and reduction of power consumption at driving time can be attained.
摘要翻译： 一种电流扫描器，包括：转子，其包括作为旋转中心的轴，以及设置在所述轴周围并沿着所述轴的圆周方向偏振到多个极的永磁体; 以及定子，其通过间隙设置在转子的外侧，并且包括线圈，轭和外壳，使得转子在预定角度范围内摆动; 其特征在于，所述永久磁铁具有沿着所述旋转轴的方向形成为沿所述永久磁铁的周向相邻的磁极跨越的槽; 并且通过分离线将永磁体分成每个极点至少两个部分。 因此，能够提高转矩常数与转动惯量的比例，能够降低驱动所需的电流，并且能够实现驱动时的功耗的降低。
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公开(公告)号：US20120105930A1
公开(公告)日：2012-05-03
申请号：US13282837
申请日：2011-10-27
CPC分类号： H02K33/00 , G02B26/105 , H02K1/276 , H02K1/2766 , H02K21/12 , H02K21/14 , H02K26/00 , H02K2213/03
摘要： A galvanoscanner including: a rotor including a shaft as a rotational center, and permanent magnets disposed around the shaft and polarized to a plurality of poles in a circumferential direction of the shaft; and a stator disposed in the outside of the rotor through a clearance and including coils, a yoke, and an outer casing so that the rotor swings in a predetermined angle range; wherein: the permanent magnets are provided with grooves which are formed in a direction of the rotation shaft so as to straddle circumferentially adjacent magnetic poles of the permanent magnets; and the permanent magnets are parted into at least two parts per pole by parting lines. Thus, the ratio of the torque constant to the moment of inertia can be improved so that the current required for driving can be reduced and reduction of power consumption at driving time can be attained.
摘要翻译： 一种电流扫描器，包括：转子，其包括作为旋转中心的轴，以及设置在所述轴周围并沿着所述轴的圆周方向偏振到多个极的永磁体; 以及定子，其通过间隙设置在转子的外侧，并且包括线圈，轭和外壳，使得转子在预定角度范围内摆动; 其特征在于，所述永久磁铁具有沿着所述旋转轴的方向形成为沿所述永久磁铁的周向相邻的磁极跨越的槽; 并且通过分离线将永磁体分成每个极点至少两个部分。 因此，能够提高转矩常数与转动惯量的比例，能够降低驱动所需的电流，并且能够实现驱动时的功耗的降低。
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