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公开(公告)号：US5368425A
公开(公告)日：1994-11-29
申请号：US924692
申请日：1992-07-31
CPC分类号： G05B19/4166 , B23Q1/01 , H02K41/02 , G05B2219/37473 , G05B2219/41047 , G05B2219/41337 , G05B2219/41412 , G05B2219/43148 , G05B2219/43152 , G05B2219/49354 , G05B2219/50001 , G05B2219/50156 , Y10T408/91 , Y10T409/307112 , Y10T409/309576
摘要： A multiple-axis machine for positioning a rotary-driven spindle, such positioning being by use of linear motors. The machine has a support for defining multiple axes, with (i) a rigid vibration-dampening bed defining at least an X-axis; (ii) at least one hollow column defining a Y-axis and having one end adjacent and movable along the bed and the other end extending away from said bed; (iii) a slide adapted for movement along the Y-axis of the column; (iv) a cage rigidly fixed to the slide for defining a Z-axis way; and (v) a hollow ram slidable within the cage and along the Z-axis way and carrying the spindle. The machine has bearing assemblies interposed between the column one end and the bed, between the column and slide, and between the cage and ram to provide for respective relative movements along the axes, the bearing assemblies being preloaded to provide an interference fit of 10-20% of the maximum bearing loading. Linear motor assemblies are interposed between the column one end and bed, between the column and slide, and between the cage and ram, the linear motor assemblies are selectably actuatable to impose a linear thrust force upon any or all of the column, slide, or ram for respective movement along the axes. The ratio of the natural frequency of the support and bearing assemblies to the bandwidth of the control velocity loop is slightly greater than one.
摘要翻译： 用于定位旋转主轴的多轴机床，通过使用直线电机进行定位。 该机器具有用于定义多个轴的支撑件，其中（i）至少限定X轴的刚性减振床; （ii）限定Y轴的至少一个中空柱，并且其一端与所述床相邻并且可移动并且另一端延伸离开所述床; （iii）适于沿着所述柱的Y轴移动的滑块; （iv）刚性地固定到所述滑块上用于限定Z轴方向的保持架; 和（v）可在保持架内并沿Z轴方向滑动并承载主轴的中空柱塞。 该机器具有插入在柱一端和床之间，柱和滑块之间以及在保持架和柱塞之间的轴承组件以提供沿着轴的相应的相对运动，轴承组件被预加载以提供10- 20％的最大轴承负载。 线性电动机组件插入在柱一端和床之间，柱和滑块之间以及保持架和柱塞之间，线性电动机组件可选择地致动，以将线性推力施加在任何或所有柱，滑块或 相对于轴的运动。 支撑和轴承组件的固有频率与控制速度环路带宽的比值略大于1。
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公开(公告)号：US12117804B2
公开(公告)日：2024-10-15
申请号：US17995958
申请日：2020-10-27
申请人： TMEIC Corporation
发明人： Ufot Ufot Ekong , Takumi Ito , Masashi Nakamura
IPC分类号： G05B19/4155
CPC分类号： G05B19/4155 , G05B2219/37473
摘要： The electric motor speed control apparatus in an embodiment comprises a rotation speed estimation unit and a control unit. The rotation speed estimation unit generates an estimated value of a rotation speed of an electric motor by using a result of FFT analysis of a speed detection signal ωFBK, which is based on a detection result from a resolver for detecting the rotation speed of the electric motor, and the speed detection signal ωFBK. The control unit implements speed control so as to reduce deviation between the estimated value of the rotation speed and a speed command value for speed control of the electric motor.
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公开(公告)号：US5072359A
公开(公告)日：1991-12-10
申请号：US508447
申请日：1990-04-13
IPC分类号： G05B19/402 , G05B19/414
CPC分类号： G05B19/4142 , G05B19/402 , G05B19/4141 , G05B2219/33337 , G05B2219/37133 , G05B2219/37473 , G05B2219/45238 , G05B2219/49166 , Y10T156/1788
摘要： A spatially-clocked system in a program controlled tape layer corrects for tape displacement error by rotating the tape application member after a predetermined length of tape is applied rather than on a temporal basis. An interpolator is provided to determine spatial clock period displacement in a temporally-clocked control system.
摘要翻译： 程序控制磁带层中的空时计时系统通过在应用预定长度的磁带之后旋转磁带应用程序而不是在时间基础上来纠正磁带位移误差。 提供了一种内插器，用于确定时域时钟控制系统中的空间时钟周期位移。
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4.发明授权
公开(公告)号：US4484287A
公开(公告)日：1984-11-20
申请号：US304903
申请日：1981-09-23
申请人： Gotaro Gamo , Mitsuo Kinoshita
发明人： Gotaro Gamo , Mitsuo Kinoshita
IPC分类号： G05B9/02 , G05B19/406 , G06F15/46 , G05B19/18
CPC分类号： G05B19/406 , G05B2219/37154 , G05B2219/37473 , G05B2219/37486 , G05B2219/50083 , G05B2219/50084 , G05B2219/50097
摘要： A system for restoring a numerically controlled machine tool to its former condition after a power interruption, the numerical control system being of the type in which a position sensor senses the current position of a movable member or of a drive motor of the machine tool and generates a current position signal in accordance with said current position, the movable member being positioned on the basis of a commanded position signal and the current position signal. The positional control information which prevails immediately prior to an interruption in the electric power which is applied to the machine tool and to the numerical control device is stored in a non-volatile memory before the power interruption occurs. When the electric power is reintroduced, the positional control information is read out of the non-volatile memory, and the movable member is returned to the position which it occupied immediately prior to the power interruption, this being accomplished on the basis of the positional control information and the current position signal.
摘要翻译： 一种用于在电力中断之后将数控机床恢复到其前一状态的系统，数字控制系统是位置传感器感测机床的可动构件或驱动电机的当前位置并产生的类型 根据所述当前位置的当前位置信号，基于命令位置信号和当前位置信号来定位可移动部件。 在电力中断发生之前，将施加到机床和数控装置的电力中断之前的位置控制信息存储在非易失性存储器中。 当重新引入电力时，从非易失性存储器中读出位置控制信息，并且可移动部件返回到其在电力中断之前立即占据的位置，这是基于位置控制 信息和当前位置信号。
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公开(公告)号：US3845532A
公开(公告)日：1974-11-05
申请号：US35267173
申请日：1973-04-19
申请人： TEXTRON INC
发明人： SMITH W
CPC分类号： B23Q39/02 , B23Q2220/002 , G05B19/182 , G05B2219/37124 , G05B2219/37473 , G05B2219/41259 , G05B2219/41309 , G05B2219/45141 , G05B2219/49118 , G05B2219/49269 , G05B2219/49273 , G05B2219/50008 , G05B2219/50024 , G05B2219/50031 , G05B2219/50047 , G05B2219/50293 , Y10T29/5155 , Y10T408/37
摘要： This disclosure relates to a turret lathe having full production capabilities. A turret carrying a plurality of drivable end working tools is selectively indexable and a single drive means is arranged to be coupled to and uncoupled from each drivable tool when indexed to an operative position. The spindle is arranged to be driven at turning speeds for operation with turning tools, and also at feed speeds in conjunction with the end working tools so that irregular contours, slots, indentions, etc. may be machined in the end face and also the peripheries of a workpiece. The end working tools may also perform drilling, boring and tapping operations on the workpiece as it is indexed to position.
摘要翻译： 本公开涉及具有完全生产能力的转塔车床。 携带多个可驱动的端部加工工具的转台是可选择性的可转位的，并且单个驱动装置被布置成当被分配到操作位置时与每个可驱动的工具联接并分离。 主轴被设置成以转动速度被驱动，用于与车刀一起操作，并且还与末端工作工具一起以进给速度驱动，使得可以在端面以及周边中加工不规则的轮廓，槽，凹痕等 的工件。 末端加工工具还可以在工件被索引到位置时对工件进行钻孔，镗孔和攻丝操作。
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6.发明授权Motor control apparatus equipped with a controller for controlling rotational position of motor 失效电机控制装置配有控制器，用于控制电机的旋转位置
公开(公告)号：US5760359A
公开(公告)日：1998-06-02
申请号：US687022
申请日：1996-07-25
CPC分类号： G05B19/353 , G01D5/24404 , H02P23/18 , G05B2219/37473 , G05B2219/42104
摘要： In a motor control apparatus for controlling a rotational position of a motor, a rotation detector detects the rotational position of the motor, and outputs first and second detection signals having phases corresponding to a detected rotational position of the motor and different from each other, and a position detecting circuit detects a rotational position in a unit which is less than one cycle of the first and second detection signals based on the first and second detection signals, and outputs a rotational position signal representing a detected rotational position. Further, a motor controller compares the rotational position signal with a reference position signal representing a reference rotational position of the motor to obtain a position error, and controls the rotational position of the motor so that the position error is minimized.
摘要翻译： 在用于控制电动机的旋转位置的电动机控制装置中，旋转检测器检测电动机的旋转位置，并且输出与电动机的检测的旋转位置相对应的相位彼此不同的第一和第二检测信号， 位置检测电路基于第一和第二检测信号检测小于第一和第二检测信号的一个周期的单元中的旋转位置，并输出表示检测到的旋转位置的旋转位置信号。 此外，马达控制器将旋转位置信号与表示马达的基准旋转位置的基准位置信号进行比较以获得位置误差，并且控制马达的旋转位置使得位置误差最小化。
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公开(公告)号：US5327790A
公开(公告)日：1994-07-12
申请号：US900663
申请日：1992-06-19
CPC分类号： H02K26/00 , B25J13/085 , B25J9/12 , B25J9/1633 , G05B2219/37344 , G05B2219/37473 , H02K29/06
摘要： A reaction torque actuator has a sensor operatively coupled between a motor housing and an outer housing. A pair of bearings support the motor within the outer housing in a spaced, concentric relationship. The bearings allow a mutual angular displacement of the housing about the axis of rotation of the output shaft of the motor, but they isolate the sensor from the axial and radial moments. A resolver surrounds the shaft at its output end to produce a signal that accurately measures the angular position of the shaft. A controller regulates power to the motor windings as a function of signals from the resolver and the sensor and torque commands. In a preferred form for use in robotics where very accurate force control is desired, the motor: is a brushless D.C. motor, the sensor is of the strain gauge type, and the controller uses high quality amplifiers, sine wave commutation, cable shielding, and filtering to limit the noise generated by electronic switching.
摘要翻译： 反作用力矩致动器具有可操作地联接在马达壳体和外壳之间的传感器。 一对轴承以外部的同心关系支撑外壳内的马达。 轴承允许壳体围绕马达的输出轴的旋转轴线相互角位移，但是它们将传感器与轴向和径向力矩隔离开。 旋转变压器在其输出端围绕轴，以产生精确测量轴的角位置的信号。 控制器根据来自旋转变压器和传感器和转矩指令的信号调节电动机绕组的功率。 在用于需要非常精确的力控制的机器人技术的优选形式中，电动机：是无刷直流电动机，传感器是应变计类型，并且控制器使用高质量放大器，正弦波换向，电缆屏蔽和 过滤以限制电子切换产生的噪声。
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公开(公告)号：US4449866A
公开(公告)日：1984-05-22
申请号：US286371
申请日：1981-07-24
申请人： Earl R. Lohneis , Richard E. Stobbe
发明人： Earl R. Lohneis , Richard E. Stobbe
CPC分类号： B23Q5/14 , G05B19/353 , G05B2219/33099 , G05B2219/37473 , G05B2219/41358 , Y10T408/165 , Y10T408/65 , Y10T408/6779 , Y10T409/309352 , Y10T483/1745 , Y10T74/19307
摘要： A servo system for the rotary spindle of a machine tool in which the spindle is driven by a drive motor through a gear train having shiftable gears for changing the rate of rotation of the spindle. The transducer for the servo system is mounted directly on the motor drive shaft in order to avoid all backlash between the resolver and the drive motor. However, the transducer is arranged to regulate the angular orientation of the spindle and must therefore be maintained in synchronism with the spindle. This is accomplished by arranging the shiftable gears so that when they are moving into engagement with a new gear, engagement with the previously engaged gear is maintained until initial engagement with the new gear is achieved. Further shifting movement into full engagement with the new gear operates to release the previously engaged gear. Thus, during the initial engagement with the new gear, the shiftable gear is momentarily in engagement with both gears. As a result, there can be no relative movement between the gears and synchronism with the transducer is thereby maintained.
摘要翻译： 一种用于机床的旋转主轴的伺服系统，其中主轴由驱动电动机通过具有用于改变主轴的转动速率的可移动齿轮的齿轮系驱动。 伺服系统的传感器直接安装在电机驱动轴上，以避免旋转变压器和驱动电机之间的所有间隙。 然而，传感器被布置成调节主轴的角度定向，因此必须与主轴保持同步。 这是通过布置可移动齿轮来实现的，使得当它们移动到与新齿轮接合时，保持与先前啮合的齿轮的啮合，直到实现与新齿轮的初始啮合。 进一步的换档运动与新齿轮的完全啮合操作以释放先前啮合的齿轮。 因此，在与新齿轮的初始接合期间，可换档齿轮暂时与两个齿轮接合。 结果，齿轮之间不存在相对运动，从而保持与换能器的同步。
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9.发明授权
公开(公告)号：US4419612A
公开(公告)日：1983-12-06
申请号：US340410
申请日：1982-01-18
CPC分类号： B24B49/00 , G05B2219/33129 , G05B2219/34287 , G05B2219/34422 , G05B2219/37473 , G05B2219/41047 , G05B2219/41255 , G05B2219/41275 , G05B2219/45159 , G05B2219/45161 , G05B2219/49382 , G05B2219/50313
摘要： An electro-mechanical control system for controlling all of the movements of one or more slides on a single workhead grinding machine. A programmable controller is interfaced with a digital to analog converter or feed control which in turn controls a drive motor that is directly connected to a screw actuator means that directly controls the movements and positions of a slide. The positioning accuracy of the control system is derived from the accuracy of the electronic control components and the stability of the machine. The control system can control the operative movements of each slide in a compound slide assembly, simultaneously or independently, for a part of a grinding machine cycle. The compound slide assembly may alternatively carry a rotating grinding wheel or a workhead that is reciprocated at high speed for a grinding operation on a workpiece.
摘要翻译： 一种机电控制系统，用于控制单个工作头研磨机上的一个或多个滑块的所有运动。 可编程控制器与数模转换器或进给控制器连接，数模转换器或进给控制器又控制直接连接到直接控制滑块的运动和位置的螺杆致动器装置的驱动马达。 控制系统的定位精度来源于电子控制部件的精度和机器的稳定性。 控制系统可以同时或独立地控制复合滑动组件中每个滑块对于一部分研磨机循环的操作运动。 复合滑动组件可以替代地携带旋转的砂轮或高速往复运动的工作头，用于对工件进行研磨操作。
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公开(公告)号：US3750244A
公开(公告)日：1973-08-07
申请号：US3750244D
申请日：1971-03-17
申请人： TEXTRON INC
发明人： SMITH W
CPC分类号： B23Q39/02 , B23Q5/20 , B23Q2220/002 , G05B19/182 , G05B2219/37124 , G05B2219/37473 , G05B2219/41259 , G05B2219/41309 , G05B2219/45141 , G05B2219/49118 , G05B2219/49269 , G05B2219/49273 , G05B2219/50008 , G05B2219/50024 , G05B2219/50031 , G05B2219/50047 , G05B2219/50293 , Y10T29/5109 , Y10T29/5155 , Y10T82/2561 , Y10T408/37
摘要： This disclosure relates to a turret lathe having full production capabilities. A turret carrying a plurality of drivable end working tools is selectively indexable and a single drive means is arranged to be coupled to and uncoupled from each drivable tool when indexed to an operative position. The spindle is arranged to be driven at turning speeds for operation with turning tools, and also at feed speeds in conjunction with the end working tools so that irregular contours, slots, indentions, etc. may be machined in the end face and also the peripheries of a workpiece. The end working tools may also perform drilling, boring and tapping operations on the workpiece as it is indexed to position.
摘要翻译： 本公开涉及具有完全生产能力的转塔车床。 携带多个可驱动的端部加工工具的转台是可选择性的可转位的，并且单个驱动装置被布置成当被分配到操作位置时与每个可驱动的工具联接并分离。 主轴被设置成以转动速度被驱动，用于与车刀一起操作，并且还与末端工作工具一起以进给速度驱动，使得可以在端面以及周边中加工不规则的轮廓，槽，凹痕等 的工件。 末端加工工具还可以在工件被索引到位置时对工件进行钻孔，镗孔和攻丝操作。
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