公开(公告)号：US06291959B1

公开(公告)日：2001-09-18

申请号：US09529538

申请日：2000-04-07

申请人： Jun Yoshida ,  Yoshikatsu Teraoka ,  Norio Mori

发明人： Jun Yoshida ,  Yoshikatsu Teraoka ,  Norio Mori

IPC分类号： G05B1918

CPC分类号： G05B19/406 ,  G05B19/404 ,  G05B2219/49204

摘要： A method and an apparatus for controlling a numerically controlled machine tool, wherein the heat generation amount and the temperature of a drive unit including a servo amplifier 15b and a feed shaft motor 3 are computed by a drive unit heat generation amount computing unit 31 by simulation, and from the computed heat generation amount and the computed temperature, the total heat generation amount of the drive unit, the cutting feed heat generation amount, the cutting load heat generation amount, etc. are computed by a feed heat generation amount computing unit 39, so that the cutting feed rate override value of the numerically controlled machine tool 1 is computed by a cutting feed rate override computing unit 27 and effectuated by being output to a NC unit. Further, based on the temperature of the drive unit computed by a computing unit 31 or the temperature computed by a temperature data computing unit 47 or the temperature detected by a temperature detection sensor 49, etc., the proper values of the feed acceleration/deceleration time constants &tgr;r and &tgr;c are computed and output as a ratio with respect to the set and stored initial values &tgr;r0 and &tgr;C0 thereby to control the NC commanded rate. The overheating of the feed axis drive unit is prevented while at the same time improving the machining efficiency.

摘要翻译： 一种用于控制数控机床的方法和装置，其中包括伺服放大器15b和进给轴电机3的驱动单元的发热量和温度由驱动单元发热量计算单元31通过模拟计算 ，并且根据计算出的发热量和计算出的温度，通过供给发热量计算单元39计算驱动单元的总发热量，切割供给发热量，切割负载发热量等 ，使得数控机床1的切削进给速度超越值由切削进给速度超越计算单元27计算，并通过输出到NC单元来实现。 此外，基于由计算单元31计算的驱动单元的温度或由温度数据计算单元47计算的温度或由温度检测传感器49等检测的温度，进给加速/减速的适当值 时间常数＆tgr; r 和＆tgr; c 被计算并作为相对于设置和存储的初始值＆tgr; r0 和 ＆tgr; C0 ，从而控制NC指令速率。 防止进给轴驱动单元的过热，同时提高加工效率。

公开(公告)号：US20050137739A1

公开(公告)日：2005-06-23

申请号：US11032795

申请日：2005-01-10

申请人： Jun Yoshida ,  Yoshikatsu Teraoka

发明人： Jun Yoshida ,  Yoshikatsu Teraoka

IPC分类号： G05B19/404 ,  G06F19/00

CPC分类号： G05B19/404 ,  G05B2219/41078 ,  G05B2219/41154 ,  G05B2219/41164

摘要： The present invention relates to a method of controlling a numerically controlled machine tool having a plurality of feed shafts. Also, the present invention relates to a numerically controlled machine tool. According to the present invention, it is possible to solve conventional problems so as to realize highly accurate machining even when a moving body of the machine is moved at high speed. As the means for solving the problems, an appropriate command corresponding to a frictional force of the feed mechanism of the numerically controlled machine tool and also corresponding to a change in the weight of a workpiece is estimated by calculation, and the thus estimated command is outputted into the drive unit of the feed shaft motor so as to drive the feed shaft motor.

摘要翻译： 本发明涉及一种控制具有多个进给轴的数控机床的方法。 另外，本发明涉及数控机床。 根据本发明，即使当机器的移动体高速移动时，也可以解决常规问题，从而实现高精度的加工。 作为解决问题的手段，通过计算来估计与数控机床的进给机构的摩擦力相对应的适当的指令，并且对应于工件的重量的变化，并且输出这样估计的命令 进入进给轴马达的驱动单元，以驱动进给轴马达。

公开(公告)号：US06566835B1

公开(公告)日：2003-05-20

申请号：US09868587

申请日：2001-06-20

申请人： Jun Yoshida ,  Yoshikatsu Teraoka

发明人： Jun Yoshida ,  Yoshikatsu Teraoka

IPC分类号： G05B19404

CPC分类号： G05B19/404 ,  G05B2219/41114 ,  G05B2219/41154 ,  G05B2219/41155 ,  G05B2219/41161 ,  G05B2219/41389 ,  G05B2219/41436 ,  G05B2219/43106

摘要： The present invention relates to a method of controlling a numerically controlled machine tool having a plurality of feed shafts. Also, the present invention relates to a numerically controlled machine tool. According to the present invention, it is possible to solve conventional problems so as to realize highly accurate machining even when a moving body of the machine is moved at high speed. As the means for solving the problems, an appropriate command corresponding to a frictional force of the feed mechanism of the numerically controlled machine tool and also corresponding to a change in the weight of a workpiece is estimated by calculation, and the thus estimated command is outputted into the drive unit of the feed shaft motor so as to drive the feed shaft motor.

摘要翻译： 本发明涉及一种控制具有多个进给轴的数控机床的方法。 另外，本发明涉及数控机床。 根据本发明，即使当机器的移动体高速移动时，也可以解决常规问题，从而实现高精度的加工。 作为解决问题的手段，通过计算来估计与数控机床的进给机构的摩擦力相对应的适当的指令，并且对应于工件的重量的变化，并且输出这样估计的命令 进入进给轴马达的驱动单元，以驱动进给轴马达。