Title:
METHOD FOR DETECTING ATTACHED STATE OF TOOL HOLDER, DEVICE FOR DETECTING ATTACHED STATE OF TOOL HOLDER, DISPLACEMENT DETECTION METHOD, DISPLACEMENT DETECTION DEVICE, AND MACHINE TOOL
Document Type and Number:
WIPO Patent Application WO/2023/188451
Kind Code:
A1
Abstract:
According to a method of the present invention for detecting an attached state of a tool holder, during setup, a tool holder 11 is attached to a spindle 26 in a state without chuck errors, counting of cutouts 11C formed in a flange 11B is started after starting rotation of a tool 9, and a time T taken to obtain measurement data from the last detected cutout 11C and a count N until that time are stored, and, during machining, the measurement data is obtained by matching the count N with the time T by the same procedure as in setup. Therefore, regardless of sensor types, the number of cutouts, shape precision, environment, etc., this method easily and highly accurately matches the phases of measurement data during setup and machining, and improves the accuracy of detecting chuck errors.
Inventors:
FUKUOKA YUTA (JP)
SEKINE HIROKI (JP)
SEKINE HIROKI (JP)
Application Number:
PCT/JP2022/031343
Publication Date:
October 05, 2023
Filing Date:
August 19, 2022
Export Citation:
Assignee:
TOKYO SEIMITSU CO LTD (JP)
International Classes:
B23Q3/155; B23B31/00; B23Q17/00
Domestic Patent References:
| WO2021065353A1 | 2021-04-08 |
Foreign References:
| JP2002200542A | 2002-07-16 | |||
| JP2004276145A | 2004-10-07 | |||
| JP2010142934A | 2010-07-01 | |||
| JP2002331442A | 2002-11-19 |
Attorney, Agent or Firm:
SPRING IP (JP)
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