公开(公告)号：EP2711126B1

公开(公告)日：2018-01-17

申请号：EP12786586.3

申请日：2012-05-16

申请人： JTEKT Corporation

发明人： SASAKI Yuji ,  IWAI Hideki ,  SAKURAI Yasumasa ,  ONISHI Kimihiro ,  WAKAZONO Yoshio ,  YAMAMOTO Yoshiji

IPC分类号： G05B19/404 ,  B23Q15/18 ,  G06F1/20 ,  B23Q11/00 ,  G06F17/50

CPC分类号： G06F1/206 ,  B23Q11/0007 ,  G05B19/404 ,  G05B2219/35017 ,  G05B2219/49206 ,  G05B2219/49209 ,  G05B2219/49212 ,  G06F17/5018 ,  G06F2217/80

摘要： Provided are a thermal displacement compensating device and a thermal displacement compensating method for a machine tool, capable of performing a structural analysis by a finite element method at a high speed and hence, of performing a thermal displacement compensation accurately on a real time basis. A block temperature obtaining section obtains temperatures of respective blocks based on temperature information detected by temperature sensors wherein temperatures in each of the respective blocks into which a column is divided to be pluralized are defined as a uniform value. An FEM analysis section performs a structural analysis by a finite element method based on the temperatures of the respective blocks obtained by the block temperature obtaining section and infers thermal displacement amounts of the column. A compensation value calculation section calculates a compensation value for a machining command position based on the thermal displacement amounts of the column inferred by the finite element method analysis section. A compensation section compensates the machining command position by the compensation value obtained by the compensation value calculation section.

公开(公告)号：EP2711126A1

公开(公告)日：2014-03-26

申请号：EP12786586.3

申请日：2012-05-16

申请人： JTEKT Corporation

发明人： SASAKI Yuji ,  IWAI Hideki ,  SAKURAI Yasumasa ,  ONISHI Kimihiro ,  WAKAZONO Yoshio ,  YAMAMOTO Yoshiji

IPC分类号： B23Q15/18 ,  G05B19/404

CPC分类号： G06F1/206 ,  B23Q11/0007 ,  G05B19/404 ,  G05B2219/35017 ,  G05B2219/49206 ,  G05B2219/49209 ,  G05B2219/49212 ,  G06F17/5018 ,  G06F2217/80

摘要： Provided are a thermal displacement compensating device and a thermal displacement compensating method for a machine tool, capable of performing a structural analysis by a finite element method at a high speed and hence, of performing a thermal displacement compensation accurately on a real time basis.
A block temperature obtaining section obtains temperatures of respective blocks based on temperature information detected by temperature sensors wherein temperatures in each of the respective blocks into which a column is divided to be pluralized are defined as a uniform value. An FEM analysis section performs a structural analysis by a finite element method based on the temperatures of the respective blocks obtained by the block temperature obtaining section and infers thermal displacement amounts of the column. A compensation value calculation section calculates a compensation value for a machining command position based on the thermal displacement amounts of the column inferred by the finite element method analysis section. A compensation section compensates the machining command position by the compensation value obtained by the compensation value calculation section.

摘要翻译： 提供一种用于机床的热位移补偿装置和热位移补偿方法，其能够通过有限元法高速执行结构分析，因此能够实时准确地进行热位移补偿。 块温度获取部分基于温度传感器检测到的温度信息获得各个块的温度，其中将被分割为多个的各个块的每个块中的温度定义为均匀值。 有限元分析部分通过基于由块温度获取部获得的相应块的温度的有限元法进行结构分析，并推断柱的热位移量。 补偿值计算部根据由有限元法分析部推断出的列的热位移量来计算加工指令位置的补偿值。 补偿部通过由补偿值计算部获得的补偿值来补偿加工指令位置。