Cutting tool form compensaton system and method
    1.
    发明授权
    Cutting tool form compensaton system and method 失效
    切削刀具形式补偿系统及方法

    公开(公告)号:US5255199A

    公开(公告)日:1993-10-19

    申请号:US628525

    申请日:1990-12-14

    摘要: A compensation system for a computer-controlled machining apparatus having a controller and including a cutting tool and a workpiece holder which are movable relative to one another along a preprogrammed path during a machining operation utilizes a camera and a vision computer for gathering information at a preselected stage of a machining operation relating to the actual shape and size of the cutting edge of the cutting tool and for altering the preprogrammed path in accordance with detected variations between the actual size and shape of the cutting edge and an assumed size and shape of the cutting edge. The camera obtains an image of the cutting tool against a background so that the cutting tool and background possess contrasting light intensities, and the vision computer utilizes the contrasting light intensities of the image to locate points therein which correspond to points along the actual cutting edge. Following a series of computations involving the determining of a tool center from the points identified along the tool edge, the results of the computations are fed to the controller where the preprogrammed path is altered as aforedescribed.

    摘要翻译: 具有控制器的计算机控制加工装置的补偿系统,其具有控制器并且包括可在加工操作期间沿着预编程路径相对于彼此移动的切割工具和工件保持器,利用照相机和视觉计算机在预选中收集信息 与切割工具的切割刃的实际形状和尺寸相关的加工操作的阶段,并且根据检测到的切割边缘的实际尺寸和形状之间的变化以及切割的假设尺寸和形状来改变预编程路径 边缘。 照相机根据背景获得切割工具的图像,使得切割工具和背景具有对比度的光强度,并且视觉计算机利用图像的对比光强度来定位其中对应于沿着实际切割边缘的点的点。 在一系列计算涉及从沿着刀沿确定的点确定刀具中心之后,计算结果被馈送到控制器,其中预编程路径如上所述被改变。

    Method and apparatus for characterizing and enhancing the dynamic performance of machine tools
    2.
    发明授权
    Method and apparatus for characterizing and enhancing the dynamic performance of machine tools 有权
    表征和提高机床动态性能的方法和装置

    公开(公告)号:US08610393B2

    公开(公告)日:2013-12-17

    申请号:US12760115

    申请日:2010-04-14

    IPC分类号: G05B13/04

    CPC分类号: G05B19/401 G05B2219/37598

    摘要: Disclosed are various systems and methods for assessing and improving the capability of a machine tool. The disclosure applies to machine tools having at least one slide configured to move along a motion axis. Various patterns of dynamic excitation commands are employed to drive the one or more slides, typically involving repetitive short distance displacements. A quantification of a measurable merit of machine tool response to the one or more patterns of dynamic excitation commands is typically derived for the machine tool. Examples of measurable merits of machine tool performance include dynamic one axis positional accuracy of the machine tool, dynamic cross-axis stability of the machine tool, and dynamic multi-axis positional accuracy of the machine tool.

    摘要翻译: 公开了用于评估和提高机床能力的各种系统和方法。 本公开适用于具有被配置为沿着运动轴移动的至少一个滑块的机床。 采用动态激励命令的各种模式来驱动一个或多个幻灯片,通常涉及重复的短距离位移。 通常为机床获得对一个或多个动态激励命令模式的机床响应的可衡量优点的量化。 机床性能可衡量的优点范例包括机床的动态单轴位置精度,机床的动态横轴稳定性和机床的动态多轴位置精度。