Title:
送り軸およびウォームギヤ異常判定システム
Document Type and Number:
Japanese Patent JP7000295
Kind Code:
B2
Abstract:
A system determining whether the feed shafts are normal or abnormal, the system including: a command generation unit that moves the feed shafts in a forward direction at a predetermined speed from a lower limit value to an upper limit value of a range of feeding movement by the numerical controller (18); and a feed shaft abnormality determination unit (19) that monitors a drive torque command during the movement of the feed shafts in the forward direction by the command generation unit, compares a monitoring result during the movement in the forward direction with a normal value of the drive torque command, determines that abnormality occurs when the drive torque command deviates from the normal value, and outputs the determination result.
Inventors:
三▲角▼ 進
Application Number:
JP2018204791A
Publication Date:
January 19, 2022
Filing Date:
October 31, 2018
Export Citation:
Assignee:
Nikken Kosakusho Co., Ltd.
International Classes:
G05B19/18; B23Q1/52; B23Q16/02; B23Q17/00; G05B19/4062
Domestic Patent References:
| JP2018017689A | ||||
| JP5285788A | ||||
| JP2018025295A | ||||
| JP2008097363A | ||||
| JP2017021472A | ||||
| JP2012035367A | ||||
| JP2018026118A | ||||
| JP2003224994A | ||||
| JP10286743A | ||||
| JP200920090A |
Foreign References:
| WO1996040558A1 |
Attorney, Agent or Firm:
Patent Business Corporation Imy International Patent Office