Mitsubishi Heavy Industries Machine Tool Co., Ltd.
发明人:
YANASE Yoshikoto,ISHIZU Kazuyuki,TANI Tomohito
申请号：
EP20090849821
公开号：
EP2484489(B1)
申请日:
2009.09.28
申请国别(地区):
欧洲专利局
年份:
2018
代理人:
摘要：
Provided is a method of phasing a threaded grinding stone, as well as a device therefor, the aforementioned method and device being such that contact or non-contact of a threaded grinding stone with a disk dresser can be detected with high accuracy, with the result that the phasing of the threaded grinding stone can be accurately performed. For the purpose of achieving the above, a threaded grinding stone (14) is phased with respect to a disk dresser (32) prior to the engagement of the threaded grinding stone (14) with the disk dresser (32) during dressing. In performing this phasing, it is determined whether or not the threaded grinding stone (14) contacted the disk dresser (32), on the basis of a voltage (V) which is commensurate with the amplitude of the elastic wave generated in the threaded grinding stone (14) at the time when the threaded grinding stone (14) contacted the disk dresser (32). In a case where the voltage (V) does not exceed a threshold value (Vo) even if the threaded grinding stone (14) co
