Method of determining a radius of a cutting end of a tool for a turning machine
First Claim
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.
1 Assignment
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Accused Products
Abstract
A method of determining a radius of a cutting end of a tool for a turning machine using a touch probe is provided. One of the cutting end and the touch probe is movable relative to a reference frame having a first axis and a second axis and having a reference point trackable in the reference frame. The method comprises establishing a first contact point and recording a first coordinate of the reference point on the first axis; establishing a second contact point and recording a second coordinate of the reference point on the second axis; establishing a third contact point and recording 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; and determining a radius of the cutting end based on the first, second, third and fourth coordinates.
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Citations
14 Claims
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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:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. 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:
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a) recording, using the at least one electronic control unit, a first coordinate of the reference point on the first axis upon contacting the touch probe and the cutting end at a first contact point having a known coordinate on the first axis; b) calculating, using the at least one electronic control unit, a first offset of an end point of the one of the cutting end and the touch probe relative to the reference point on the first axis based on the first coordinate; c) recording, using the at least one electronic control unit, a second coordinate of the reference point on the second axis upon contacting the touch probe and the cutting end at a second contact point having a known coordinate on the second axis; and d) calculating, using the at least one electronic control unit, a second offset of the end point relative to the reference point on the second axis based on the second coordinate; e) 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 moving an end point of the one of the cutting end and the touch probe along a predetermined direction as controlled by the at least one electronic control unit and contacting the touch probe and the cutting end at a third contact point along the predetermined direction, the third contact point having known coordinates on the first and second axes, the predetermined direction being at an angle with the first and second axes and being determined from 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 calculated using the first and second offsets; and f) determining, using the at least one electronic control unit, a radius of the cutting end based on the first, second, third and fourth coordinates. - View Dependent Claims (12)
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13. A turning machine comprising:
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a tool having a cutting end; a touch probe having two flat faces and one of a rounded and angled corner joining the two flat faces; and an electronic control unit (ECU) controlling at least one of the tool and the probe to move in a reference frame to establish separate contacts between the probe and the tool at a first point on one of the two flat faces, at a second point on the other one of the two flat faces and at a third point on the one of the rounded and angled corner, the ECU being configured to record coordinates of a reference point of the tool or the probe during the separate contacts so as to calculate a radius of the cutting end. - View Dependent Claims (14)
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Specification