GEAR MANUFACTURING APPARATUS, GEAR MANUFACTURING METHOD, AND THREADED TOOL FOR USE IN THE APPARATUS AND THE METHOD
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United States of America Patent
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Issued Date -
Jul 4, 2024
app pub date -
Dec 28, 2021
filing date -
Jun 10, 2021
priority date (Note) -
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Abstract
A gear manufacturing apparatus configured to grind a gear workpiece including teeth formed on its outer circumferential surface, by meshing and rotating the gear workpiece and a threaded tool including one or more spiral processing teeth formed on an outer circumferential surface of a base portion of the tool, including: a control device configured to execute a corner portion grinding control in which one corner portion among four corners of each tooth surface of the gear workpiece is ground such that a termination, which is an edge of the processing tooth in a tooth trace direction, comes into contact with the gear workpiece, utilizing only a termination tooth surface in a one-side tooth surface of the processing tooth or the other-side tooth surface of the processing tooth, the termination tooth surface being set to include part of the termination and being one closed region.
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