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    • 3. 发明授权
    • Method and structure for improving the dynamic characteristics of a linear roller guideway
    • 提高直线滚轮导轨动态特性的方法和结构
    • US09353793B1
    • 2016-05-31
    • US14615414
    • 2015-02-05
    • YEONG CHIN MACHINERY INDUSTRIES CO., LTD.
    • Wen-Lung Li
    • F16C29/06F16C29/00
    • F16C29/002F16C29/02F16C29/0659F16C29/08F16C2322/39
    • A method and structure improves the dynamic characteristics of a linear roller guideway for precision machine tool, robot or automation equipment by: adding a nonlinear component to the linear roller guideway to provide better dynamic stiffness and damping effects. The nonlinear component has a nonlinear contact characteristic of hardening so that during mounting or in a quick movement of the slide units of the linear roller guideway, the nonlinear component has a relatively lower stiffness to reduce its friction with the rail surface; on the other hand, when bearing a load or during a cutting work, the nonlinear component has a relatively higher stiffness. The nonlinear component also provides a planar contact, overcoming the drawbacks of low damping of point or line contact of the slide units of the nonlinear roller guideway, and enhancing the cutting precision of the machine tool.
    • 一种方法和结构通过以下方式提高了精密机床,机器人或自动化设备的直线滚子导轨的动态特性:通过向线性滚子导轨添加非线性分量,以提供更好的动态刚度和阻尼效果。 非线性部件具有硬化的非线性接触特性,使得在安装或者在线性滚子导轨的滑动单元的快速移动中,非线性部件具有相对较低的刚度以减小其与轨道表面的摩擦; 另一方面,当承载负载或在切割加工期间,非线性部件具有相对较高的刚度。 非线性部件还提供平面接触,克服了非线性滚子导轨的滑动单元的点或线接触的低阻尼的缺点,并提高了机床的切割精度。