Synchronous control system
    71.
    发明授权
    Synchronous control system 失效
    同步控制系统

    公开(公告)号:US5025200A

    公开(公告)日:1991-06-18

    申请号:US427124

    申请日:1989-10-10

    摘要: Disclosed is a synchronous control system for effecting a synchronous and superimposed operation among different channels of a multi-channel-control machine tool. A follow-up error amount (.epsilon.3) of a servomotor responsive to a superimposing instruction is simulated, a difference is determined by subtracting the follow-up error amount (.epsilon.3) to the superimposing instruction from a follow-up error amount (.epsilon.2) of a servomotor for a superimposed operation axis (Z2) and the difference is compared with a follow-up error amount (.epsilon.1) of a servomotor for a synchronous operation axis (Z1) to produce an alarm when the comparison indicates the operation of the servomotors is synchronized and superimposed.With this arrangement, a synchronous error can be checked when a superimposed operation of the servomotors is effected.

    Machine with rotating cutting tool
    72.
    发明授权
    Machine with rotating cutting tool 失效
    带旋转切割工具的机器

    公开(公告)号:US4599769A

    公开(公告)日:1986-07-15

    申请号:US709996

    申请日:1985-03-12

    摘要: A machine tool (10) with a rotating cutting tool (24) has a spindle assembly (20,48) mounted for rotation in a longitudinally movable headstock (18). The spindle assembly includes a spindle (48), driven by a motor (50) and an integral machining head (20) having a rotatably mounted drive screw (62). The drive screw carries a radially positionable follower (72) to which is connected a tool block (22) to define a radial slide for supporting the cutting tool. A drive shaft (82) extending through the spindle is in driving engagement with the drive screw such that rotation of the drive shaft relative to the spindle produces rotation of the drive screw and consequential radial movement of the follower and tool block. A motor (76) mounted on the spindle for rotation with the spindle is connected to the drive shaft for rotating it either a clockwise or counterclockwise sense to produce radial movement of the follower and tool block. A counterbalance block (70) is in threaded engagement with a threaded shaft (142) mounted in the machining head in driving connection with the drive shaft for providing dynamic balance. A tool changer assembly (38) is secured to a floor mounted support (46) for changing tools in the tool block.

    摘要翻译: 具有旋转切割工具(24)的机床(10)具有主轴组件(20,48),该主轴安装件用于在纵向移动的主轴箱(18)中旋转。 主轴组件包括由马达(50)驱动的主轴(48)和具有可旋转地安装的驱动螺杆(62)的整体加工头(20)。 驱动螺钉承载径向定位的从动件(72),工具块(22)连接到工具块(22)上以限定用于支撑切割工具的径向滑动件。 延伸穿过主轴的驱动轴(82)与驱动螺杆驱动接合,使得驱动轴相对于主轴的旋转产生驱动螺杆的旋转以及从动和工具块的随后的径向移动。 安装在主轴上以与心轴一起转动的马达(76)连接到驱动轴上,以使其顺时针或逆时针方向旋转,以产生从动件和工具块的径向移动。 平衡块(70)与安装在加工头中的螺纹轴(142)螺纹接合,与驱动轴驱动连接以提供动态平衡。 工具更换器组件(38)固定到用于改变工具块中的工具的地板安装的支撑件(46)上。

    Numerical control systems for machine tools
    73.
    发明授权
    Numerical control systems for machine tools 失效
    机床数控系统

    公开(公告)号:US4206393A

    公开(公告)日:1980-06-03

    申请号:US885564

    申请日:1978-03-13

    申请人: Jiro Chiba

    发明人: Jiro Chiba

    IPC分类号: G05B19/416 G05D23/275

    摘要: In a numerical control system of a machine tool wherein a servo-system for driving tool, table etc. is controlled by a control instruction signal expressed by a given function equation, there are provided a control instruction signal generator which generates a signal representing a control instruction value, a correction device for producing a correction signal corresponding to a phase lag angle of a servo-drive system for driving a working shaft and a correction device for correcting the control instruction value in accordance with the correction signal.

    摘要翻译: 在其中用于驱动工具的伺服系统,工作台等由给定的功能方程表示的控制指令信号控制的机床的数控系统中,提供了一个控制指令信号发生器,其产生表示控制的信号 指令值,用于产生对应于用于驱动工作轴的伺服驱动系统的相位滞后角的校正信号的校正装置和用于根据校正信号校正控制指令值的校正装置。

    Multi-axis electronic motion generator
    74.
    发明授权
    Multi-axis electronic motion generator 失效
    多轴电子运动发生器

    公开(公告)号:US4084083A

    公开(公告)日:1978-04-11

    申请号:US629029

    申请日:1975-11-05

    IPC分类号: G05B19/37 G05B19/18

    CPC分类号: G05B19/373 G05B2219/42186

    摘要: Apparatus for generating synchronized multi-axis intermittent motion utilizing electronic encoding, memory and a servo controlled positioning system. A plurality of mechanically independent slave shafts are positioned in response to the position of a rotatable master shaft. An analog transducer is attached to the master shaft providing an analog output signal which is fed through an analog-to-digital converter. A digital representation of the master shaft position is provided by the analog-to-digital converter. The digital indication of master shaft position is fed to a plurality of independent digital memory devices each of which provides, in response, a digital position signal indicative of the desired position of an associated slave shaft. The output of each independent digital memory device is fed to a digital-to-analog converter which provides an analog output representative of the desired slave shaft position. A servo controller positions the associated slave shaft in response to the analog signal. A translator can be utilized for combining the digital output of each memory with an analog position signal from a position transducer connected to the associated slave shaft and providing an analog difference or error signal which can be utilized for proper positioning of the slave shaft. A tachometer can be utilized in the slave shaft servo for providing speed feedback information. Other means for speed feedback can be employed either by deriving a speed signal from other parameters, related to speed, or by utilizing the characteristics of the prime mover itself for speed feedback.

    摘要翻译: 用于利用电子编码,存储器和伺服控制定位系统产生同步多轴间歇运动的装置。 响应于可旋转主轴的位置而定位多个机械独立的从动轴。 模拟换能器连接到主轴,提供通过模数转换器馈送的模拟输出信号。 主轴位置的数字表示由模数转换器提供。 主轴位置的数字指示被馈送到多个独立的数字存储设备,每个独立的数字存储设备响应地提供指示相关联的从轴的期望位置的数字位置信号。 每个独立数字存储器件的输出被馈送到数模转换器,该转换器提供代表期望从轴位置的模拟输出。 伺服控制器根据模拟信号定位相关联的从轴。 可以使用翻译器将每个存储器的数字输出与来自连接到相关从轴的位置传感器的模拟位置信号组合,并提供可用于从轴的正确定位的模拟差分或误差信号。 在从轴伺服中可以使用转速表,以提供速度反馈信息。 用于速度反馈的其它方法可以通过从与速度相关的其他参数导出速度信号,或通过利用原动机本身的速度反馈特性来采用。

    Machine tools
    75.
    发明授权
    Machine tools 失效
    机械工具

    公开(公告)号:US3984746A

    公开(公告)日:1976-10-05

    申请号:US478164

    申请日:1974-06-10

    IPC分类号: B23F23/00 G05B19/18 G05B19/24

    摘要: A machine for forming gears and the like comprises a workpiece support continuously rotatable about a first axis, a tool support angularly displaceable about a second axis and constructed to support a tool for rotation about a third axis angled to the first axis and an electrical master-slave servo system having a master providing a first electrical signal defining a required angular displacement for the tool support and a second electrical signal for influencing the continuous rotation of the workpiece support in dependence upon the angular displacement defined by the first signal.

    摘要翻译: 用于形成齿轮等的机器包括可围绕第一轴线连续旋转的工件支撑件,可绕第二轴线成角度地移位并被构造为支撑用于围绕与第一轴线成角度的第三轴线旋转的工具的工具支架, 从属伺服系统,其具有提供限定用于工具支撑件的所需角位移的第一电信号的第一电信号和用于根据由第一信号限定的角位移来影响工件支撑件的连续旋转的第二电信号。