Title:
【発明の名称】周期的機械加工をする工作機械の工具の状況を監視する方法および装置
Document Type and Number:
Japanese Patent JPS58500605
Kind Code:
A
Abstract:
PCT No. PCT/SE82/00120 Sec. 371 Date Dec. 10, 1982 Sec. 102(e) Date Dec. 10, 1982 PCT Filed Apr. 13, 1982 PCT Pub. No. WO82/03589 PCT Pub. Date Oct. 28, 1982.The vibration level (a) is measured and applied to controllable filter (F). The filter (F) is a band pass filter that only passes a narrow band around a certain frequency that is determined by the frequency (1) of the machining cycle. The output signal of the filter is then compared to one or several reference levels (7) and an alarm signal is outputted in case of unacceptable deviation from the reference level.
Inventors:
Hols Glen Roland
Garpendaar Gunnar
Ericsson Hans
Warren Bengt
Garpendaar Gunnar
Ericsson Hans
Warren Bengt
Application Number:
JP50129382A
Publication Date:
April 21, 1983
Filing Date:
April 13, 1982
Export Citation:
Assignee:
Keibi-Wibra
International Classes:
B23B25/06; B23B49/00; B23C9/00; B23Q17/09; B23Q17/12; G01H1/00; G01N3/58; G01N29/12; B23Q; G01H; (IPC1-7): B23Q17/12; B23C9/00
Attorney, Agent or Firm:
Yaichi Watanabe