Method of controlling shape and NC processing apparatus utilizing the
method
    1.
    发明授权
    Method of controlling shape and NC processing apparatus utilizing the method 失效
    使用该方法控制形状和NC处理装置的方法

    公开(公告)号:US5910040A

    公开(公告)日:1999-06-08

    申请号:US765574

    申请日:1996-12-26

    摘要: An electrode (4) is disposed spaced away from and in facing relation with an electrically conductive grinding wheel (2). There is applied a voltage across the grinding wheel and the electrode with making electrically conductive fluid (7) flow between the grinding wheel and the electrode. A position of the grinding wheel is numerically controlled with the grinding wheel being dressed by electrolysis to thereby grind a work with the grinding wheel. The work is ground in accordance with command data Zx.sup.(i), and then a shape of a ground surface is measured by means of a measuring device (12). The measurement data is filtered to thereby record shape error data e.sub.x.sup.(i). There is established new command data Zx.sup.(i+1) by adding compensation, and then the work is ground again with the thus established new command data. The compensation refers to past command data, and determines new command data to be equal to an expected value of the past command data. In accordance with the present invention, it is possible to obtain higher shape accuracy with the less number of processing steps, extract real shape indicating signals out of measurement data, and avoid misregistration of a work which would be caused by fixing/removing.

    摘要翻译: PCT No.PCT / JP96 / 02294 Sec。 371日期1996年12月26日第 102(e)日期1996年12月26日PCT提交1996年4月14日PCT公布。 公开号WO97 / 06922 日期1997年2月27日电极(4)与导电研磨轮(2)间隔开并与其面对。 在磨轮和电极之间施加电压,使得导电流体(7)在砂轮和电极之间流动。 砂轮的位置由数字控制,砂轮通过电解进行修整,从而研磨砂轮。 根据指令数据Zx(i)对工件进行研磨,然后借助于测量装置(12)测量地面的形状。 过滤测量数据,从而记录形状误差数据ex(i)。 通过添加补偿建立新的命令数据Zx(i + 1),然后通过这样建立的新命令数据再次研磨工作。 补偿指的是过去的指令数据,并且将新的指令数据确定为等于过去指令数据的期望值。 根据本发明,可以通过较少数量的处理步骤获得更高的形状精度,从测量数据中提取实际形状指示信号,并且避免由固定/移除引起的作品的不对准。