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1. 发明授权

US5643051A Centerless grinding process and apparatus therefor 失效
标题翻译：无心磨削工艺及其设备
公开(公告)号：US5643051A
公开(公告)日：1997-07-01
申请号：US491027
申请日：1995-06-16
申请人： Shiping Steven Zhou , Joseph R. Gartner , Trevor D. Howes
发明人： Shiping Steven Zhou , Joseph R. Gartner , Trevor D. Howes
IPC分类号： B24B5/22 , B24B5/35 , B24B49/00
CPC分类号： B24B5/22 , B24B49/00 , B24B5/35
摘要： In a method for minimizing the roundness error in an workpiece having a generally circular periphery during centerless grinding of the workpiece, the workpiece is rotatably supported on the upper surface of a first workpiece support between the grinding wheel and the second workpiece support, with the first support rotatably supporting the workpiece in contact with said grinding wheel and said second support. The .alpha.-setup angle and .beta.-setup angle cooperate with a cutting ratio to define the transfer function of a lobing loop system in the complex u-plane, and the lobing stability of the lobing loop system is thereby determined. The workpiece is rotated against the rotating grinding surface of the grinding wheel, and the magnitude and frequency of grinding disturbances causing the roundness error in the workpiece are detected. The .beta.-setup angle is modified to minimize the workpiece roundness error by minimizing the response of the lobing loop system corresponding to the detected grinding disturbances, and the ratio of the rotational speed of the grinding wheel to the rotational speed of the workpiece is adjusted to further minimize the workpiece roundness error by generating only precessing waves of minimum magnitude in the workpiece.
摘要翻译：在用于最小化工件的无心磨削期间具有大致圆形周边的工件的圆度误差的方法中，工件被可旋转地支撑在第一工件支撑件的在砂轮和第二工件支撑件之间的上表面上，其中第一支撑件可旋转地支撑与所述砂轮和所述第二支撑件接触的工件。 α设定角度和β设定角度与切割比配合以确定复杂u平面中的罗宾环系统的传递函数，从而确定了罗宾环系统的波动稳定性。工件相对于砂轮的旋转磨削面旋转，并且检测造成工件圆度误差的磨削扰动的大小和频率。通过最小化与检测到的磨削干扰相对应的波动回路系统的响应，β修正角度被最小化以使工件圆度误差最小化，将砂轮的转速与工件的转速的比率调整为通过仅在工件中产生最小幅度的进动波来进一步最小化工件圆度误差。

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