Numerical control device for a machine tool
    24.
    发明公开
    Numerical control device for a machine tool 失效
    Einrichtung zur numerischen Steuerung einer Werkzeugmaschine。

    公开(公告)号:EP0431572A2

    公开(公告)日:1991-06-12

    申请号:EP90123255.3

    申请日:1990-12-04

    IPC分类号: G05B19/18

    摘要: A numerical control (NC) device (10) for a machine tool (1) provided with a measurement probe (2b) effects measurements of the work (4) on the machine table (5) after a working process. The measurement program, generated by the NC device (10) by modifying the working program, controls the relative movement of the probe (2b) with respect to the work (4) such that the probe (2b) moves along the contour of the worked portion of the work (4) with a displacement from the neutral position thereof, wherein the displacement of the probe (2b) is sampled at a predetermined sampling period. A working error calculation program (17) calculates the working error from the sampled discplacements. If the working error is judged correctable, a correction re-working is effected so as to reduce the working error. The measurement/re-working cycles are repeated until the working error is within tolerance.

    摘要翻译: 设置有测量探针(2b)的机床(1)的数控(NC)装置(10)在工作过程之后对机床(5)上的工件(4)进行测量。 通过修改工作程序由NC设备(10)产生的测量程序控制探头(2b)相对于工件(4)的相对运动,使得探头(2b)沿着加工的轮廓移动 工件(4)的从其中性位置移位的部分,其中探针(2b)的位移在预定的采样周期被采样。 工作误差计算程序(17)从采样的位置计算工作误差。 如果工作错误被判断为可校正,则进行校正重新进行以减少工作误差。 重复测量/重新工作循环,直到工作误差在公差范围内。

    Apparatus for detecting a likely abnormality of the cutting tool beforehand
    26.
    发明公开
    Apparatus for detecting a likely abnormality of the cutting tool beforehand 失效
    Einrichtung zum vorzeitigen Erkennen einermöglichenAnomalie eines Schneidewerkzeuges。

    公开(公告)号:EP0093558A1

    公开(公告)日:1983-11-09

    申请号:EP83302317.9

    申请日:1983-04-22

    发明人: Kakino, Yoshiaki

    IPC分类号: B23Q11/00 G01N3/58

    摘要: The apparatus comprises a torque limiter (3) for generating an elastic wave having a level higher than a given level in response to an overload being applied to a cutting tool (1). The cutting tool (1) is working on a workpiece (8) and is mounted in a tool holder (2) or the head portion (6) of a main spindle (5). A detector (11) is provided for receiving the elastic wave outside the cutting section and includes a detecting section (12), a high path-filter (13), an amplifier (14), a mean-valve detector (15) and an amplitude discriminator (16). The detector (11) is connected to a warning signal generator (17) and a controller (18) for effecting a protective counteraction in relation to the cutting tool (1), thereby preventing the cutting tool from being broken or damaged due to the overload.

    摘要翻译: 该装置包括用于响应于施加到切割工具(1)的过载而产生具有高于给定水平的水平的弹性波的扭矩限制器(3)。 切割工具(1)在工件(8)上工作并安装在工具架(2)或主轴(5)的头部(6)中。 提供了一种用于接收切割部分外的弹性波的检测器(11),包括检测部分(12),高路径滤波器(13),放大器(14),平均阀检测器(15)和 幅度鉴别器(16)。 检测器(11)连接到警告信号发生器(17)和控制器(18),用于相对于切割工具(1)进行保护性反作用,从而防止切割工具由于过载而损坏或损坏 。