Title:
WORKING SYSTEM, CONTACT DETECTING METHOD, AND AE CONTACT DETECTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2007/080699
Kind Code:
A1
Abstract:
Intended to reduce the influences of noises at the output of an AE sensor in a working machine. A working system comprises a working device for performing a working operation by bringing a tool (14) into contact with a workpiece (W), an AE sensor (21), and an AE signal processing unit (22) for processing an AE signal outputted by the AE sensor. The AE signal processing unit (22) includes an A/D converter (33) for converting the AE signal into a digital signal, a frequency analysis unit (34) for calculating the frequency characteristics of the digital AE signal, storage units (35, 37) for storing the frequency characteristics at the time when the tool does not contact with the workpiece or a tool dresser, as noncontact frequency characteristics, and a difference calculation unit (35) for calculating the difference between the frequency characteristics of the digital AE signal detected and the noncontact frequency characteristics.
More Like This:
| JP4001290 | Precision machining method |
| JPH10230437 | TOUCH SENSOR AND REFORMING THEREOF |
Inventors:
MEKI KAZUO (JP)
Application Number:
PCT/JP2006/322310
Publication Date:
July 19, 2007
Filing Date:
November 01, 2006
Export Citation:
Assignee:
TOKYO SEIMITSU CO LTD (JP)
MEKI KAZUO (JP)
MEKI KAZUO (JP)
International Classes:
B23Q17/22; B24B49/10; B24B47/22; B24B49/00
Foreign References:
| JP2002116016A | 2002-04-19 | |||
| JPH06114692A | 1994-04-26 | |||
| JP2002066879A | 2002-03-05 | |||
| JPS6440270A | 1989-02-10 | |||
| JPS63109977A | 1988-05-14 | |||
| JPH06114692A | 1994-04-26 |
Attorney, Agent or Firm:
AOKI, Atsushi et al. (Toranomon 37 Mori Bldg. 5-1, Toranomon 3-chome, Minato-k, Tokyo 23, JP)
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