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21. 发明授权

US4364005A Brushless tachometer generator 失效
标题翻译：无刷转速发电机
公开(公告)号：US4364005A
公开(公告)日：1982-12-14
申请号：US169428
申请日：1980-07-16
申请人： Yoshinori Kohzai , Yoichi Amemiya , Yoshiki Fujioka , Noboru Iwamatsu
发明人： Yoshinori Kohzai , Yoichi Amemiya , Yoshiki Fujioka , Noboru Iwamatsu
IPC分类号： H02K21/14 , G01P3/46 , H02K29/08 , H02P9/00 , H02K21/12
CPC分类号： H02K29/08 , G01P3/465 , Y10S310/03 , Y10S322/05
摘要： A tachometer generator comprising a generator section for producing rectangular polyphase alternating voltages having a peak value which is proportional to the speed of the rotor, and a commutator section including contactless change-over switches for successively transferring the alternating voltages from the generator section, and sensors for producing switching signals which actuate the change-over switches in accordance with the rotational position of the rotor of the generator section. In the commutator section the sensors are equivalent in number to the change-over switches and comprise Hall devices arrayed about a rotary shaft which is coupled to the generator section. The alternating voltages which are obtained successively from the coils of the generator section as the rotary shaft rotates, are transferred in order by the change-over switches to produce a speed signal, in analog form; which is proportional to the rotating speed of the rotor. The axially extending width of the rotor is smaller than the axially extending width of the stator, the width of the rotor being approximately 80% that of the stator. A magnetic shield plate is interposed between the generator section and the sensors of the commutator section. The tachometer generator having the above arrangement generates more accurate speed signals and can be reduced in size since the generator and commutator sections are capable of being disposed closer together as a result of the provision of the magnetic shield.
摘要翻译：一种转速计发生器，包括用于产生具有与转子速度成比例的峰值的矩形多相交流电压的发电机部分，以及包括用于从发电机部分连续传送交流电压的非接触转换开关的换向器部分，以及传感器用于产生根据发电机部分的转子的旋转位置致动转换开关的切换信号。在换向器部分中，传感器数量等同于转换开关，并且包括围绕耦合到发电机部分的旋转轴排列的霍尔装置。随着旋转轴旋转，从发电机部分的线圈连续获得的交流电压通过转换开关按顺序传送，以模拟形式产生速度信号; 这与转子的转速成比例。转子的轴向延伸宽度小于定子的轴向延伸宽度，转子的宽度约为定子的宽度的80％。在发电机部分和换向器部分的传感器之间插入磁屏蔽板。具有上述布置的转速计发生器产生更精确的速度信号，并且可以减小尺寸，因为由于提供磁屏蔽，发电机和换向器部分能够靠近在一起设置。

22. 发明授权

US4353018A Control system for synchronized operation of machine tool motors 失效
标题翻译：机床电机同步运行控制系统
公开(公告)号：US4353018A
公开(公告)日：1982-10-05
申请号：US179937
申请日：1980-08-20
申请人： Yoshinori Kohzai , Yoshiki Fujioka
发明人： Yoshinori Kohzai , Yoshiki Fujioka
IPC分类号： B23Q5/10 , B23G1/16 , B23Q5/04 , B23Q5/08 , B23Q5/22 , B23Q15/00 , G05B19/18 , G05D13/62 , H02P5/52 , G05B19/24
CPC分类号： G05B19/186 , G05B2219/41255 , G05B2219/45216 , G05B2219/50224 , G05B2219/50225 , G05B2219/50226 , Y10T408/17 , Y10T408/175
摘要： An improved control system for facilitating tapping work in a machining center of the type which performs a variety of machining operations automatically. Control is effected by establishing and maintaining a certain relationship between the operation of a spindle motor which rotates a tap, and the operation of a Z-axis feed motor which transports a table longitudinally of the tap, the table mounting a workpiece. Specifically, the spindle motor and Z-axis feed motor are driven in relation to one another at all times in such a manner that the equation N.sub.s =f.sub.m /P will be satisfied, where N.sub.s (rpm) is the rotational speed of the spindle motor, f.sub.m is the feed speed of the table along the Z-axis, and P is the thread pitch of the tap. Apparatus for controlling the spindle motor includes a control circuit which is adapted to stop the spindle at a prescribed angle of rotation.
摘要翻译：一种改进的控制系统，便于自动执行各种加工操作的加工中心的攻丝工作。控制是通过建立并保持旋转水龙头的主轴电动机的操作与在纵向移动水龙头的工作台的工作的Z轴进给电动机的操作之间保持一定的关系。具体地说，主轴电动机和Z轴供给电动机总是相互相互驱动，使得满足公式Ns = fm / P，其中Ns（rpm）是主轴电动机的转速，fm是表沿Z轴的进给速度，P是水龙头的螺距。用于控制主轴电动机的装置包括控制电路，其适于以预定的旋转角度停止主轴。

23. 发明授权

US4347470A Spindle orientation control apparatus 失效
标题翻译：主轴定向控制装置
公开(公告)号：US4347470A
公开(公告)日：1982-08-31
申请号：US236623
申请日：1981-02-20
申请人： Yoshinori Kohzai , Yoshiki Fujioka , Naoto Ota
发明人： Yoshinori Kohzai , Yoshiki Fujioka , Naoto Ota
IPC分类号： B23Q5/20 , B23Q15/10 , G05B19/39 , G05B19/28
CPC分类号： G05B19/39 , G05B2219/49273
摘要： A spindle orientation control apparatus having a motor for driving a spindle, speed control means for rotating the spindle at a speed in accordance with a command speed, and position control means for stopping the spindle at a commanded stopping position. The apparatus is further provided with stopping position command means for digitally instructing the spindle stopping position, a position sensor, error monitoring means for monitoring an error between the commanded stopping position and the actual rotational position of the spindle and for generating a signal when the error attains a predetermined value, and means for generating a signal indicative of an orientation speed. When the apparatus is in a spindle orientation control mode, the spindle is speed-controlled so as to rotate at the orientation speed until the error monitoring means generates said signal, and is position-controlled after the generation of the signal so as to reduce the error to zero.
摘要翻译：一种主轴定向控制装置，具有用于驱动主轴的马达，速度控制装置，用于根据指令速度以一定速度旋转主轴;以及位置控制装置，用于使主轴停止在指令停止位置。该装置还设置有用于数字指示主轴停止位置的停止位置指令装置，位置传感器，用于监视指令停止位置与主轴的实际旋转位置之间的误差的误差监测装置，以及当误差产生信号时达到预定值，以及用于产生指示取向速度的信号的装置。当装置处于主轴定向控制模式时，主轴被速度控制，以便以定向速度旋转，直到误差监视装置产生所述信号，并且在产生信号之后进行位置控制，以便减少误差为零。

24. 发明授权

US4342950A Spindle rotation control system 失效
标题翻译：主轴旋转控制系统
公开(公告)号：US4342950A
公开(公告)日：1982-08-03
申请号：US190661
申请日：1980-09-25
申请人： Yoshinori Kohzai , Yoshiki Fujioka , Naoto Ota
发明人： Yoshinori Kohzai , Yoshiki Fujioka , Naoto Ota
IPC分类号： H02P3/06 , B23Q5/20 , G05B19/39 , G05D3/12 , G05B5/01
CPC分类号： G05B19/39 , G05B2219/41021 , G05B2219/49273
摘要： A system for controlling the rotation of a spindle which includes motor, a speed detector for detecting the speed of the motor and for producing a signal indicative of the actual speed thereof, a speed control circuit for controlling the motor so as to narrow a deviation between the signal indicative of the actual motor speed and a command speed signal, a spindle which is driven by the motor, and an orientation control circuit for producing a position deviation signal on the basis of the rotational position of the spindle and a commanded stopping position, wherein the spindle is rotated at a commanded speed by the speed control circuit and rotationally controlled in response to an orientation command signal so as to reduce the position deviation signal to zero. The gain of the speed control circuit is raised upon detecting that the rotational position of the spindle has reached the vicinity of the commanded stopping position, whereby the spindle which comes to rest at the commanded stopping position is held at such position rigidly as if secured there by a mechanical brake. Hence the spindle will not rotate accidentally even if subjected to an external force.
摘要翻译：一种用于控制主轴旋转的系统，包括马达，速度检测器，用于检测马达的速度并产生指示其实际速度的信号;速度控制电路，用于控制马达，以减小指示实际电动机速度的信号和指令速度信号，由电动机驱动的主轴;以及用于基于主轴的旋转位置和指令停止位置产生位置偏差信号的定向控制电路，其中所述主轴由所述速度控制电路以指令速度旋转，并且响应于定向指令信号被旋转地控制，以将所述位置偏差信号减小到零。在检测到主轴的旋转位置已经到达指令停止位置附近时，速度控制电路的增益被提高，由此在指令停止位置停止的主轴被牢固地保持在这样的位置通过机械制动。因此，即使受到外力，主轴也不会意外转动。

25. 发明授权

US4284939A Device for detecting opposite phase and open phase 失效
标题翻译：用于检测相位和开路相位的装置
公开(公告)号：US4284939A
公开(公告)日：1981-08-18
申请号：US76548
申请日：1979-09-18
申请人： Shigeki Kawada , Yoshiki Fujioka , Naoto Ohta , Yutaka Koiwai
发明人： Shigeki Kawada , Yoshiki Fujioka , Naoto Ohta , Yutaka Koiwai
IPC分类号： G01R19/10 , G01R29/18 , G01R31/02 , H02H3/253 , H02H3/34 , H02H11/00 , H02P7/292 , G05B5/00
CPC分类号： H02H11/004 , G01R19/10 , G01R29/18 , G01R31/024 , H02H3/253
摘要： A device for detecting opposite phases and an open phase in an input three-phase voltage for a DC motor, wherein the input three-phase voltage is rectified by a three-phase bridge circuit and supplied to the armature of the DC motor. The input three-phase voltage is supplied to the three-phase bridge circuit when the maximum level is equal to or less than the reference voltage, while the input three-phase voltage is not supplied to the bridge circuit when the maximum level is greater than the reference voltage. In this case, both opposite phases and an open phase can be detected by using a common device. In addition, only two phases, such as U- and W-phases, are used for detecting opposite phases and an open phase no matter how these phases may be generated in any phase such as U-, V- or W-phase of the input three-phase voltage. As a result, the device is small in size, simple in electrical construction and low in cost.
摘要翻译：一种用于在直流电动机的输入三相电压中检测相位相位和开路相位的装置，其中输入三相电压由三相桥式电路整流并提供给直流电动机的电枢。当最大电平等于或小于参考电压时，输入三相电压被提供给三相桥式电路，而当最大电平大于输入三相电压时，输入三相电压不提供给桥式电路参考电压。在这种情况下，可以通过使用公共装置来检测相位相位和开路相位。此外，只有两个相位，如U相和W相，用于检测相位相和开路相位，无论这些相位如何在任何相位中产生，例如U相，V相或W相的任何相位输入三相电压。结果，该装置尺寸小，电气结构简单，成本低。

26. 发明授权

US5440580A Laser discharge tube and electrode manufacturing method 失效
标题翻译：激光放电管和电极的制造方法
公开(公告)号：US5440580A
公开(公告)日：1995-08-08
申请号：US332403
申请日：1994-10-31
申请人： Norio Karube , Yoshiki Fujioka , Mitsuo Manabe
发明人： Norio Karube , Yoshiki Fujioka , Mitsuo Manabe
IPC分类号： H01S3/03 , H01S3/038 , H01S3/0975 , H01S3/097
CPC分类号： H01S3/0388 , H01S3/0387 , H01S3/0975
摘要： A laser discharge tube having electrodes the peeling of which is reduced and a method of manufacturing electrodes of a laser discharge tube by which the peeling of the electrodes is reduced. The electrodes are adhered to the outside periphery of the tube wall of the laser discharge tube. The electrodes contain as components an electric conductive substance, an inorganic binder and boron nitride as a thermal expansion preventing substance for suppressing a coefficient of thermal expansion. When a silica glass tube is used as the laser discharge tube, the laser discharge tube has a coefficient of thermal expansion of +0.5.times.10.sup.-6. When the electrodes are mixed with boron nitride, the electrodes have a coefficient of thermal expansion of +2 to +7.times.10.sup.-6 and the coefficient of thermal expansion of the electrodes can be brought close to the that of the laser discharge tube by mixing boron nitride with the electrodes. Thus, the peeling of the electrodes caused by a difference of the coefficients of thermal expansion can be reduced.
摘要翻译：具有其剥离电极的激光放电管被减少，以及制造电极剥离的激光放电管的电极的制造方法。电极粘附到激光放电管的管壁的外周。这些电极包含导电物质，无机粘合剂和氮化硼作为组分，作为用于抑制热膨胀系数的热膨胀防止物质。当使用石英玻璃管作为激光放电管时，激光放电管的热膨胀系数为+ 0.5×10 -6。当电极与氮化硼混合时，电极的热膨胀系数为+2〜+ 7×10-6，电极的热膨胀系数可以接近于激光放电管的热膨胀系数，通过混合氮化硼与电极。因此，可以降低由热膨胀系数的差异引起的电极的剥离。

27. 发明授权

US4908734A Housing for motor control unit 失效
标题翻译：电机控制单元外壳
公开(公告)号：US4908734A
公开(公告)日：1990-03-13
申请号：US211233
申请日：1988-06-08
申请人： Yoshiki Fujioka
发明人： Yoshiki Fujioka
IPC分类号： H02M7/48 , H05K1/14 , H05K5/00 , H05K7/14 , H05K7/20
CPC分类号： H05K5/0017 , H05K1/144
摘要： A control unit according to the invention has a plastic case (v) housing only power components (v), such as transistors for an inverter, among components constituting a control circuit. Other circuit components such as resistors are mounted on a printed circuit board, and the case and circuit board are secured to each other by fasteners allowing the case to be made light in weight. Screws for mounting the power components to the case are of the same size, and so are the energizing terminals. This makes possible automated assembly by robot.

28. 发明授权

US4837491A Motor velocity control apparatus 失效
标题翻译：电机速度控制装置
公开(公告)号：US4837491A
公开(公告)日：1989-06-06
申请号：US928208
申请日：1986-10-16
申请人： Yoshiki Fujioka , Mitsuhiko Hirota
发明人： Yoshiki Fujioka , Mitsuhiko Hirota
IPC分类号： H02P5/46 , H02P5/50
CPC分类号： H02P5/50
摘要： A motor velocity control apparatus according to the present invention has at least one of the following is included with a servoamplifier: a current feedback gain changeover circuit; a velocity feedback gain changeover circuit; a velocity loop gain changeover circuit; a changeover circuit for a current loop amplitude and phase table storage circuit. Accordingly, the invention is well-suited for changeover control of a plurality of spindle motors of different ratings in a machine tool.
摘要翻译： PCT No.PCT / JP86 / 00078 Sec。 371日期1986年10月16日第 102（e）日期1986年10月16日PCT提交1986年2月20日PCT公布。公开号WO86 / 05044 日本1986年8月28日。根据本发明的电动机速度控制装置在伺服放大器中包括以下中的至少一个：电流反馈增益转换电路; 速度反馈增益转换电路; 速度环增益转换电路; 用于电流环路幅度和相位表存储电路的转换电路。因此，本发明非常适用于机床中不同额定值的多个主轴电机的切换控制。

29. 发明授权

US4641069A Plural motor changeover control system 失效
标题翻译：多电机切换控制系统
公开(公告)号：US4641069A
公开(公告)日：1987-02-03
申请号：US631559
申请日：1984-07-10
申请人： Yoshiki Fujioka , Mitsuhiko Hirota
发明人： Yoshiki Fujioka , Mitsuhiko Hirota
IPC分类号： H02P5/46 , G05B19/414 , G05B11/32
CPC分类号： G05B19/4144
摘要： A plural motor changeover control system for using a plurality of motors (1a, 1b), the power outputs of which differ, by successively switching among the motors. A conversion table (32a, 32b) corresponding to a motor designated for operation from among the plurality of motors (1a, 1b) is selected, and an amplitude command is fetched from the selected conversion table, which command corresponds to a velocity error, which is a difference between an actual velocity of the designated motor and a commanded velocity. The amplitude command is applied to the servo control circuit to control the designated motor.
摘要翻译： PCT No.PCT / JP83 / 00408 Sec。 371日期1984年7月10日 102（e）日期1984年7月10日PCT提交1983年11月11日PCT公布。出版物WO84 / 02040 日期：1984年5月24日。多个电动机切换控制系统，其通过在电动机之间连续切换来使用其电力输出不同的多个电动机（1a，1b）。选择与多个电动机（1a，1b）中指定用于操作的电动机对应的转换表（32a，32b），并且从所选转换表中取出振幅指令，该指令对应于速度误差，其中是指定电机的实际速度与指令速度之间的差值。将幅度指令应用于伺服控制电路以控制指定的电机。

30. 发明授权

US4614020A Mechanism and method for automatically changing tools 失效
标题翻译：自动更换工具的机制和方法
公开(公告)号：US4614020A
公开(公告)日：1986-09-30
申请号：US498209
申请日：1983-05-04
申请人： Shigeki Kawada , Yoshiki Fujioka
发明人： Shigeki Kawada , Yoshiki Fujioka
IPC分类号： B23B39/20 , B23Q3/157
CPC分类号： B23B39/205 , B23Q3/15534 , B23Q3/15706 , Y10T29/49819 , Y10T29/5107 , Y10T29/5167 , Y10T408/37 , Y10T409/308232 , Y10T483/12 , Y10T483/13 , Y10T483/179
摘要： An automatic tool changing mechanism includes a spindle mechanism (11) having at least a spindle (11a) and a first gear (11b) rotatable in unison with the spindle; a spindle motor (12) for rotating the spindle; a tool magazine (20) having at least a storage unit (20b) for storing a plurality of tools (21), a second gear (20c) rotatable in unison with the storage unit, and a slider (20e) slidably mounted on the spindle mechanism; a Z-axis motor (19a) for moving the spindle mechanism in the direction of a Z-axis; a constraining member (23) for constraining the tool magazine against movement thereof in the direction of the Z-axis and a control circuit (102, 103) for controlling the indexing. During machining operation, the first and second gears are brought out of mesh with each other, and the spindle is rotated by the spindle motor at a prescribed speed to enable a tool mounted on the spindle to machine a workpiece. For changing tools, the first and second gears are held in mesh with each other, and the spindle motor is rotated by the control circuit to index to a desired new tool. An automatic tool changing method for the automatic tool changing mechanism is also provided.
摘要翻译： PCT No.PCT / JP82 / 00369 Sec。 371日期：1983年5月4日 102（e）日期1983年5月4日PCT提交1982年9月14日PCT公布。出版物WO83 / 日期：1983年3月31日。自动换刀机构包括：主轴机构（11），其具有至少一个主轴（11a）和与主轴一体旋转的第一齿轮（11b）主轴电动机（12），用于旋转主轴; 至少具有用于存储多个工具的存储单元（20b）的工具仓（20），与所述存储单元一体旋转的第二齿轮（20c）和可滑动地安装在所述主轴上的滑块（20e）机制; 用于沿Z轴方向移动主轴机构的Z轴马达（19a）; 约束构件（23），用于约束所述工具仓以防止其在Z轴方向上的移动;以及控制电路（102,103），用于控制所述分度。在加工操作期间，第一和第二齿轮彼此脱离啮合，主轴由主轴电机以规定的速度旋转，使得安装在主轴上的工具能够加工工件。为了更换工具，第一和第二齿轮彼此啮合，主轴电动机由控制电路旋转以转向所需的新工具。还提供了一种用于自动换刀机构的自动换刀方法。

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