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Title:
CUTTING BLADE MONITORING DEVICE FOR CUTTING DEVICE
Document Type and Number:
Japanese Patent JP2004034192
Kind Code:
A
Abstract:

To provide a cutting blade monitoring device for a cutting device capable of correctly detecting the state of a cutting edge of a cutting blade without being affected by cutting water or contamination, which can also be applied to cutting devices having multiple blades.

This cutting blade monitoring device is for a cutting device provided with a workpiece holding means to hold a workpiece, and a cutting means to cut the workpiece held by the workpiece holding means, where the cutting means is provided with a rotary spindle, and a cutting blade installed on the rotary spindle, and provided with a cutting edge comprising abrasive grains fixed by magnetic material. It is provided with a magnetism sensor disposed to face the outer circumference of the cutting edge of the cutting blade, and a control means to determine the state of the cutting edge based on detection signals from the magnetism sensor.


Inventors:
MORIMOTO KATSUMI
MATSUBARA MASAYUKI
SUGANO YOHEI
Application Number:
JP2002192012A
Publication Date:
February 05, 2004
Filing Date:
July 01, 2002
Export Citation:
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Assignee:
DISCO ABRASIVE SYSTEMS LTD
International Classes:
B23Q17/09; B23Q17/00; H01L21/301; (IPC1-7): B23Q17/09; H01L21/301
Domestic Patent References:
JP2001179639A2001-07-03
JP2002151444A2002-05-24
JPS52110930A1977-09-17
JPS5972045A1984-04-23
JPH0230051U1990-02-26
JPH088474A1996-01-12
JPS62218052A1987-09-25
JPS48101151A1973-12-20
JPH08323584A1996-12-10
Attorney, Agent or Firm:
Naozumi Ono



 
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