Gear cutting – milling – or planing – Gear cutting – Gear tooth shape generating
Patent
1984-09-12
1987-04-14
Silverberg, Fred
Gear cutting, milling, or planing
Gear cutting
Gear tooth shape generating
318568, 364474, B23F 106
Patent
active
046574476
ABSTRACT:
A method and apparatus for determining the angular position of a workpiece and for positioning the same relative to at least one tool. The workpiece has at least one set of teeth. In a first measuring operation, a measuring wheel having a tooth construction is made to mesh with a set of teeth of a reference workpiece. Pulses are derived from the rotating measuring wheel and from a reference shaft which has a known gear ratio with the measuring wheel, and consequently also turns. A first phase measurement is undertaken between the pulses, the result of which is stored as the reference value. The reference workpiece is replaced with a workpiece which is to be machined and which is provided with teeth. A second phase measurement between the pulses of the reference shaft and of the measuring wheel are undertaken in a second measuring operation. The reference value of the first phase measurement is compared with the result of the second phase measurement. The workpiece is turned relative to the reference shaft in conformity with the difference between the two measured values.
REFERENCES:
patent: 4208718 (1980-06-01), Chung
patent: 4329096 (1982-05-01), Herscovici
Faulstich Hans I.
Muller Wolfgang
Hermann Pfauter GmbH & Co.
Silverberg Fred
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