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Measuring method and device, machine tool having such device, and work processing method

  • US 20020189120A1
  • Filed: 06/17/2002
  • Published: 12/19/2002
  • Est. Priority Date: 10/16/2000
  • Status: Active Grant
First Claim
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1. A method of measuring the position of a cutting edge of a tool mounted to a spindle of an NC machine tool, comprising the steps of:

  • measuring the dimension of a reference position of the spindle relative a reference coordinate position of the machine tool in at least an axial direction of the X-, Y- and Z-axes during when the spindle rotates or is stationary after the rotation;

    measuring the dimension of the position of a cutting edge of a tool mounted to the spindle relative to the reference position of the spindle in the axial direction when the spindle rotates or is stationary; and

    obtaining the dimension of the position of a cutting edge of a tool mounted to the spindle relative to the reference coordinate position through a calculation on the basis of the relative dimensions measured in the previous two steps.

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