| 发明名称 |
MACHINE TOOL AND CONTROL METHOD THEREFOR |
| 摘要 |
A machine tool according to an embodiment includes a drive mechanism configured to move a control target; a motor configured to operate the drive mechanism; a first encoder configured to detect a position of the control target; a second encoder configured to detect a position of the motor; a servo control unit configured to control the motor; and a numerical control unit configured to receive or calculate an error between the position of the control target obtained from a detection result of the first encoder and a position of the control target obtained from a detection result of the second encoder from the servo control unit, and to estimate a transmission error of the drive mechanism based on a change amount of the error between before and after inversion of a moving direction of the control target. |
| 申请公布号 |
US2014354209(A1) |
申请公布日期 |
2014.12.04 |
| 申请号 |
US201414290501 |
申请日期 |
2014.05.29 |
| 申请人 |
Toshiba Kikai Kabushiki Kaisha |
发明人 |
FUJITA Jun;SAGA Chihiro |
| 分类号 |
G05D3/10 |
主分类号 |
G05D3/10 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A machine tool comprising:
a drive mechanism configured to move a control target; a motor configured to operate the drive mechanism; a first encoder configured to detect a position of the control target; a second encoder configured to detect a position of the motor; a servo control unit configured to control the motor; and a numerical control unit configured to receive or calculate an error between the position of the control target obtained from a detection result of the first encoder and a position of the control target obtained from a detection result of the second encoder from the servo control unit, and to estimate a transmission error of the drive mechanism based on a change amount of the error between before and after inversion of a moving direction of the control target. |
| 地址 |
Chiyoda-ku JP |
