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Method of determining a radius of a cutting end of a tool for a turning machine

  • US 9,618,927 B2
  • Filed: 04/15/2014
  • Issued: 04/11/2017
  • Est. Priority Date: 04/15/2014
  • Status: Expired due to Fees
First Claim
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1. A method of determining with at least one electronic control unit a radius of a cutting end of a tool for a turning machine using a touch probe, one of the cutting end and the touch probe being movable as controlled by the at least one electronic control unit relative to a reference frame having a first axis and a second axis and having a reference point trackable in the reference frame of the at least one electronic control unit, the method comprising:

  • a) establishing, using the at least one electronic control unit, a first contact point between the touch probe and the cutting end and recording, using the at least one electronic control unit, a first coordinate of the reference point on the first axis, the first contact point having a known coordinate on the first axis; and

    b) establishing, using the at least one electronic control unit, a second contact point between the touch probe and the cutting end and recording, using the at least one electronic control unit, a second coordinate of the reference point on the second axis, the second contact point having a known coordinate on the second axis; and

    c) establishing, using the at least one electronic control unit, a third contact point between the touch probe and the cutting end by moving an end point of the one of the cutting end and the touch probe along a predetermined direction at an angle with the first and second axes as controlled by the at least one electronic control unit and recording, using the at least one electronic control unit, a third coordinate of the reference point on the first axis and a fourth coordinate of the reference point on the second axis upon contact, the pre-determined direction being dependent on the coordinate of the first contact point on the first axis and the coordinate of the second contact point on the second axis, the end point being offset from the reference point by an amount deduced from the first coordinate and the second coordinate recorded at steps a) and b); and

    d) determining, using the at least one electronic control unit, a radius of the cutting end based on the first, second, third and fourth coordinates.

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