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Method of determining tool breakage

  • US 6,161,055 A
  • Filed: 12/01/1995
  • Issued: 12/12/2000
  • Est. Priority Date: 05/17/1993
  • Status: Expired due to Term
First Claim
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1. A method for determining tool breakage in a machine tool comprising the steps of:

  • providing an electro-optical sensor in said machine tool capable of automatically determining a shape of the cutting edge of said tool,automatically sensing a physical characteristic of an operation of said machine tool during cutting with said cutting edge,automatically determining that the sensed value of the operation of the machine tool has provided information indicative of a potential break of the cutting edge of said tool,automatically examining the shape of said tool with said electro-optical sensor when information indicative of a potential break has been sensed, andautomatically determining if said shape is also indicative of tool breakage.

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