Invention Grant
- Patent Title: Apparatus and method for automatically detecting and compensating for a backlash of a machine tool
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Application No.: US14009698Application Date: 2012-05-09
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Publication No.: US10197988B2Publication Date: 2019-02-05
- Inventor: Ki Hong Kim
- Applicant: Ki Hong Kim
- Applicant Address: KR Gyeongsangnam-do
- Assignee: Doosan Machine Tools Co., Ltd.
- Current Assignee: Doosan Machine Tools Co., Ltd.
- Current Assignee Address: KR Gyeongsangnam-do
- Agency: Westman, Champlin & Koehler, P.A.
- Agent John D. Veldhuis-Kroeze
- Priority: KR10-2011-0045290 20110513
- International Application: PCT/KR2012/003635 WO 20120509
- International Announcement: WO2012/157885 WO 20121122
- Main IPC: G05B19/404
- IPC: G05B19/404 ; B23Q5/56 ; F16H25/20 ; F16H57/12 ; B23Q5/40

Abstract:
According to an embodiment of the present invention, a torque variation of a servomotor, which is measured in a numerical control apparatus of an existing numerical control machine tool, is observed, and a backlash is detected by calculating a transfer distance of an output shaft of the servomotor at a torque peak, without adding additional positioning detection equipment, thereby detecting an accurate backlash amount without adding additional equipment.
Public/Granted literature
- US20140039666A1 APPARATUS AND METHOD FOR AUTOMATICALLY DETECTING AND COMPENSATING FOR A BACKLASH OF A MACHINE TOOL Public/Granted day:2014-02-06
Information query
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