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    • 85. 发明授权
    • Method of making coordinate measurements of a workpiece on a machine tool
    • 在机床上对工件进行坐标测量的方法
    • US5996239A
    • 1999-12-07
    • US796242
    • 1997-02-07
    • Rainer Ohnheiser
    • Rainer Ohnheiser
    • G01B5/008G01B21/04G01B7/008
    • G01B5/008G01B21/04
    • The invention is directed to a method for making coordinate measurements on a workpiece on a machine tool. In this method, the workpiece 25 remains on the machine tool during the measuring operation and is scanned via a measuring arm of a coordinate measuring apparatus 31 set up next to the machine tool 21. The coordinate measuring apparatus 31 has its own measuring system for detecting the movements of the measurement arm 34 or of the probe 35 attached to the measuring arm. It is not absolutely necessary that the coordinate measuring apparatus 21 have its own drives or that it has its own CNC-control because the measurement arm or the probe head can be guided or moved with the aid of an entrainment device 27 by the drives of the machine tool 21.
    • 本发明涉及一种用于在机床上对工件进行坐标测量的方法。 在该方法中,工件25在测量操作期间保持在机床上,并经由设置在机床21上的坐标测量装置31的测量臂扫描。坐标测量装置31具有其自身的检测系统 测量臂34或附接到测量臂的探头35的运动。 坐标测量装置21不是绝对必要具有自己的驱动装置或者具有自己的CNC控制,因为测量臂或探针头可借助于夹带装置27被引导或移动 机床21。
    • 86. 发明授权
    • Calibration of capacitance probe
    • 电容探头的校准
    • US5583443A
    • 1996-12-10
    • US481161
    • 1995-06-07
    • David R. McMurtryDavid K. ThomasDavid C. Bound
    • David R. McMurtryDavid K. ThomasDavid C. Bound
    • G01B7/00G01B7/008G01B7/02G01B7/28G01B7/34G01N13/20G01N37/00G01R27/26G01R35/00
    • G01B7/008G01B7/023G01B7/28G01B7/34
    • A capacitance probe is used by a coordinate measuring machine or machine tool to determine distances from the probe to the workpiece surface at various points over the surface. The probe is calibrated by moving it along a line, which is skewed to the surface. During this movement, a plurality of values of the capacitance and the corresponding values of the actual distance moved along the line are recorded. A datum value for the movement along the skewed line is also determined, which corresponds to a position at which the probe would touch the surface. The probe is calibrated without needing separate independent measurements of the distance from the probe to the surface. The workpiece surface is scanned using the thus-calibrate probe, in which different calibration values are used at different points on the surface, in order to account for the local shape of the surface.
    • 坐标测量机或机床使用电容探头来确定表面上各个点处从探头到工件表面的距离。 通过沿着与表面倾斜的线移动探头来校准探针。 在该移动期间,记录电容的多个值和沿线移动的实际距离的对应值。 还确定了沿着偏斜线的移动的基准值,其对应于探针将接触表面的位置。 探头被校准,无需对从探头到表面的距离进行独立的独立测量。 使用如此校准的探头扫描工件表面,其中在表面上的不同点使用不同的校准值,以便考虑表面的局部形状。
    • 87. 发明授权
    • Workpiece inspection method
    • 工件检验方法
    • US4991304A
    • 1991-02-12
    • US305727
    • 1989-01-26
    • David R. McMurtry
    • David R. McMurtry
    • G01B7/00G01B7/008G01B21/00G01B21/04
    • G01B21/045G01B7/008
    • A succession of nominally identical workpieces is measured using a probe on a coordinate measuring machine. To enable most of the workpieces to be probed at a fast speed (step 40), and compensate for the errors thereby introduced, one workpiece is also probed at a slow speed (step 32). For that workpiece, a series of error values is calculated (step 36) from the differences between the fast and slow measurements. The subsequent fast measurements on succeeding workpieces are corrected by making use of these error values (step 42).
    • PCT No.PCT / GB88 / 00455 Sec。 371日期1989年1月26日 102(e)日期1989年1月26日PCT Filed 1988年6月10日PCT公布。 出版物WO88 / 09915 日期为1988年12月15日。使用坐标测量机上的探头测量连续的名义上相同的工件。 为了能够以快速的速度探测大部分工件(步骤40),并且补偿由此引入的误差,也以慢速探测一个工件(步骤32)。 对于该工件,根据快速和慢速测量之间的差异计算一系列误差值(步骤36)。 随后的随后的工件的快速测量通过利用这些误差值来校正(步骤42)。
    • 88. 发明授权
    • Apparatus for adjusting shaft supports to a reference axis
    • 用于将轴支撑件调整到参考轴的装置
    • US4937947A
    • 1990-07-03
    • US352988
    • 1989-05-17
    • Camille M. CatterlainFrancis GirardGaston H. Reide
    • Camille M. CatterlainFrancis GirardGaston H. Reide
    • B23F19/10B23F23/00B23F23/12B23Q3/18B23Q17/22G01B7/008G01B7/31
    • B23Q17/2275B23F23/12B23Q3/183G01B7/008G01B7/31
    • An apparatus is disclosed to rotate a gear shaft about a reference axis and to position rolling path support elements such that their centers coincide with a reference axis. Once the rolling path elements have been centered and adjusted to compensate for any offset or warp they are fixedly attached to the gear shaft and serve to accurately support the shaft in a grinding or machining device which forms internal centering chamfers. Once the centering chamfers have been formed, they may be used to support the device during its final machining. A computer is included in the apparatus and is operatively connected to rotating and feeler devices. The computer is also operatively connected to a display screen which displays a sequence of events enabling the operator to adjust the positions of the rolling path elements. The display screen may include infrared heat sensitive areas to enable the operator to input data into the computer and control the operation of the apparatus.
    • 公开了一种用于围绕参考轴线旋转齿轮轴并且定位滚动路径支撑元件使得它们的中心与参考轴线重合的装置。 一旦滚动路径元件已经被对中和调整以补偿任何偏移或翘曲,它们被固定地附接到齿轮轴并且用于在形成内部定心倒角的研磨或加工装置中精确地支撑轴。 一旦形成中心倒角,它们可以用于在最终加工期间支撑该装置。 计算机被包括在设备中并且可操作地连接到旋转和触觉设备。 计算机还可操作地连接到显示屏幕,该显示屏显示一系列事件,使得操作者能够调整滚动路径元件的位置。 显示屏幕可以包括红外热敏感区域,以使操作者能够将数据输入计算机并控制装置的操作。
    • 89. 发明授权
    • Position-determining apparatus
    • 位置确定装置
    • US4819491A
    • 1989-04-11
    • US206342
    • 1988-06-17
    • David R. McMurtry
    • David R. McMurtry
    • G01B21/00G01B7/008G01B7/28G01B11/02G01B21/20G01M19/00
    • G01B11/026G01B7/008G01B7/28
    • The apparatus disclosed is a co-ordinate measuring machine having a column (33) movable relative to an object (11) for determining the contour (12) thereof. A tube (15) movable relative to the column (33) has a lens (18) focussing light to a sensing point (19) intended to lie at the contour (12). When, on moving the column (33) across the contour (12), the contour (12) rises relative to the column (33) and the lens (18), the change is at first detected by an optical position sensor (23) which produces an error signal (26A) to a motor (27) causing the latter to move the tube (15) in the sense restoring the sensing point (19) to the new position of the contour (12). The movement of the tube (15) is sensed by a further position sensor (30) which outputs a signal (30Z) connected to move the column (33) in the sense of restoring its previous position relative to the tube (15). The latter signal (30Z) is shaped to produce an initially slow response in the column (33) so that the relatively greater inertia thereof is accommodated.
    • PCT No.PCT / GB87 / 00747 Sec。 371日期:1988年6月17日 102(e)日期1988年6月17日PCT提交1987年10月20日PCT公布。 出版物WO88 / 02843 日期:1988年4月21日。所公开的装置是具有可相对于物体(11)移动以便确定其轮廓(12)的柱(33)的坐标测量机。 相对于列(33)可移动的管(15)具有将光聚焦到旨在位于轮廓(12)处的感测点(19)的透镜(18)。 当在列(33)上移动横过轮廓(12)时,轮廓(12)相对于柱(33)和透镜(18)升高,首先由光学位置传感器(23)检测到变化, 其产生到马达(27)的误差信号(26A),使马达(27)在将感测点(19)恢复到轮廓(12)的新位置的方向上移动管(15)。 通过另一个位置传感器(30)感测管(15)的运动,该位置传感器(30)输出一个连续的信号(30Z),以便在恢复其先前相对于管(15)的位置的意义上移动柱(33)。 后一信号(30Z)被成形为在柱(33)中产生最初缓慢的响应,使得容纳相对较大的惯性。