Method and apparatus for eliminating undulation errors on gear-tooth flanks in production gear-fabricating machines
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United States of America Patent
Stats
-
Dec 3, 1985
Grant Date -
N/A
app pub date -
Oct 9, 1984
filing date -
Oct 18, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In order to eliminate undulation errors in gear production wherein a generating motion of a gear-tooth flank of a gear fixed to a rotary table corresponding to an involute profile is induced by simultaneously imparting a predetermined rotary motion and a predetermined translatory motion to the rotary table, a reference ratio of these two speeds is determined, the momentary speeds of the table are measured and a momentary ratio is determined therefrom. A difference value is formed between the reference ratio and the momentary ratio. This difference value is first formed for each gear-tooth flank during one revolution and then stored in association with the momentary generating position of the gear and with the momentary stroke position of the gear-fabricating tool and only when the same gear-tooth flank is reached during a further revolution is the adjustment value of the gear-fabricating tool corrected by means of the stored difference values.
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