MACHINE TOOL, TOOL DECIDING METHOD AND TOOL DECIDING PROGRAM

Title:

MACHINE TOOL, TOOL DECIDING METHOD AND TOOL DECIDING PROGRAM

Document Type and Number:

Japanese Patent JP2003103435

Kind Code:

A

Abstract:

To provide a machine tool hardly judging a tool to be incorrect even though the correct tool to be used in machining is fetched.

When a drill is identified as an undercut type (YES of s21), a microcomputer 64 reads a diameter of an undercut part of the drill from a tool data base (s22). A diameter of the drill held in a main spindle 52 is measured (s23). A difference between the read diameter of the undercut part and the measured diameter of the drill is calculated (s24). If the calculated difference is a predetermined threshold or more (YES of s28), a warning process is executed (s29), and if it is smaller than the predetermined threshold (NO of s28), a tool deciding process is finished. By this, the drill held in the main spindle 52 is judged that it is the correct drill to be used.

Inventors:

SHIMIZU KIMIKAZU

Application Number:

JP2001301453A

Publication Date:

April 08, 2003

Filing Date:

September 28, 2001

Export Citation:

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Assignee:

BROTHER IND LTD

International Classes:

B23Q3/155; B23Q17/00; (IPC1-7): B23Q17/00; B23Q3/155

Attorney, Agent or Firm:

Tsutomu Adachi (1 person outside)

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