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    • 7. 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。
    • 10. 发明授权
    • Arcuate movement numerical control method and system
    • 弧运动数值控制方法和系统
    • US4163184A
    • 1979-07-31
    • US512295
    • 1974-10-04
    • Albert C. Leenhouts
    • Albert C. Leenhouts
    • G05B19/4103G05B19/24
    • G05B19/4103G05B2219/33098Y02P90/06
    • A method and apparatus for producing relative arcuate movement which may be greater than one quadrant for each input command by subdividing the movement into a plurality of sequential linear lengths of varying extent and proper direction. The extent of each length is defined by the number of steps of movement to be produced simultaneously over the same time interval on each of the pair of perpendicular axes. The extent of each length is determined to be that which both maintains the actual movement within a maximum deviation from the commanded path and is within the change of velocity limitation of the system thereby inherently providing acceleration and deceleration as well as not excessively exceeding any feed rate command.The method and system further selects the extent of the length from a group of possible extents by investigating which extent is most acceptable having regard to relative emphasis of path deviation and velocity error. The relative emphasis may be set by input commands.
    • 一种用于产生相对弓形运动的方法和装置,其可以通过将运动细分为多个具有不同程度和适当方向的连续线性长度,而每个输入命令可以大于一个象限。 每个长度的范围由在一对垂直轴中的每一个上的相同时间间隔上同时产生的移动步数的数量来定义。 每个长度的程度被确定为在与指令路径的最大偏差内保持实际移动的范围,并且在系统的速度限制的改变之内,从而固有地提供加速和减速以及不超过任何进给速率 命令。