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    • 5. 发明授权
    • Method and means in an industrial robot for the generation of a complex
movement
    • 用于产生复杂运动的工业机器人中的方法和装置
    • US4150329A
    • 1979-04-17
    • US780726
    • 1977-03-24
    • Lars Dahlstrom
    • Lars Dahlstrom
    • B25J9/16B25J9/18G05B19/25G05B19/41G05B19/22
    • B25J9/1679G05B19/253G05B19/41G05B2219/34034G05B2219/36497
    • A method and apparatus for moving a device, such as a robot arm, through complex movements. The complex movement is divided into a principal movement between two defined end points A, B. Superposed on the principal movement is a closed loop series of subordinate movements (at least two subordinate movements) which loop is executed, at least once, during the principal movement. Data defining the end points of both principal and subordinate movements is stored in a storage device. Both principal and subordinate movements are divided into a number of equal incremental principal and subordinate movements. The sum of the principal and subordinate incremental movements is a composite incremental movement. Signals related to each composite incremental movement are provided to a drive means for moving the device.
    • 一种用于通过复杂运动来移动诸如机器人手臂的装置的方法和装置。 复合运动被分为两个定义的终点A,B之间的主要运动。叠加在主运动上是一个闭环系列的从属运动(至少两个从属运动),循环在主体期间至少执行一次 运动。 定义主要和从属运动的终点的数据存储在存储设备中。 主要和从属运动都分为若干相等增量的主体和从属运动。 主要和从属增量运动的总和是复合增量运动。 与每个复合增量运动相关的信号被提供给用于移动设备的驱动装置。
    • 6. 发明授权
    • Surface speed control of spindle-related numerical control system
    • 主轴相关数控系统的表面速度控制
    • US3656377A
    • 1972-04-18
    • US3656377D
    • 1969-07-10
    • ALLEN BRADLEY CO
    • KOSEM MARION
    • G05B19/18G05B19/416B23B1/00
    • G05B19/182G05B19/416G05B2219/34034G05B2219/42186G05B2219/43139G05B2219/43141G05B2219/43157Y10T82/10Y10T82/2556
    • In a numerical control system having apparatus for controlling feedrate as a function of spindle speed (angular velocity), a spindle encoder provides a train of basic feed pulses at a frequency fo as a function of spindle speed. Surface speed of a cutting tool over a workpiece is controlled to a value programmed in linear units where the spindle provides relative rotary motion between the tool and the workpiece by multiplying the frequency fo by the absolute command position of the tool along an axis perpendicular to the axis of rotation of the spindle, and comparing the resulting product with a train of pulses at a frequency that is a function of programmed surface speed. Any difference drives a bidirectional counter in a direction corresponding to the sign of the difference. A digital-to-analog converter couples the output of the bidirectional counter to a spindle drive mechanism to bring the actual surface speed into agreement with the desired surface speed.
    • 在具有用于根据主轴速度(角速度)的方式控制进给速度的装置的数控系统中,主轴编码器以频率fo作为主轴转速提供一系列基本进给脉冲。 将切削工具在工件上的表面速度控制为以线性单位编程的值,其中主轴通过将频率fo乘以工具的绝对指令位置沿着垂直于工件的轴的轴线来提供相对旋转运动 轴的旋转轴线,并且将所得到的乘积与作为编程表面速度的函数的频率的脉冲序列进行比较。 任何差异都会在与差异符号相对应的方向上驱动双向计数器。 数模转换器将双向计数器的输出耦合到主轴驱动机构,以使实际的表面速度与期望的表面速度一致。
    • 10. 发明授权
    • Adaptive numerically controlled machine tool responsive to deflection forces on the tool normal to the cutting path
    • 自适应数控机床响应工具上的偏转力正常到切割路径
    • US3849712A
    • 1974-11-19
    • US26780272
    • 1972-06-30
    • IBM
    • LANKFORD LWHITTLE W
    • B23Q15/12G05B15/02G05B19/4155G05B19/416G05B13/00
    • G05B19/4163G05B2219/33098G05B2219/34034Y02P90/06
    • A data processing system supplies numerical control data to a controller for a machine tool connected in a system for adaptively controlling the machine tool feedrate in response to data measured by sensors connected to the machine tool. The deflection forces on a tool operating upon a workpiece are measured and the data processing system program determines the tool deflection force transverse to the path of the tool relative to the workpiece. The program computes the change in deflection required to meet a dimensional tolerance based upon data previously obtained relative to tool deflection characteristics of the tool. Then the program calculates a new control value to change the feed rate to a value intended to provide the desired degree of deflection. The data processing system then supplies the control value to apparatus to modify the feed rate and bite size, accordingly.
    • 数据处理系统将数控数据提供给用于连接在系统中的机床的控制器,用于响应于连接到机床的传感器测量的数据自动控制机床进给速度。 测量在工件上操作的工具上的偏转力,并且数据处理系统程序确定横向于工具相对于工件的路径的工具偏转力。 该程序基于相对于工具的刀具偏转特性先前获得的数据来计算满足尺寸公差所需的偏转变化。 然后,该程序计算一个新的控制值,将进给速率改变成旨在提供所需偏转程度的值。 然后,数据处理系统将控制值提供给设备,以相应地修改进给速率和咬合尺寸。