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AssigneesCitizen Holdings Co., Ltd., Citizen Machinery Co., Ltd.
InventorHajime MATSUMARU
Estimating the term…
A polygon machining method whereby first polygon machining using a polygon cutter is carried out on a workpiece, followed by machining using tools other than the polygon cutter, then second polygon machining using the polygon cutter again. The polygon machining method comprises: a first polygon machining step in which a main axis and a tool main axis are synchronously rotated such that the rotation speed of the main axis and the tool main axis are at a ratio required for the first polygon machining, and polygon machining is carried out; a machining step in which the ratio is changed to a second synchronization ratio such that the main axis rotates at a rotation speed required for machining after the first polygon machining, the main axis and the tool main axis are synchronously rotated, and machining is carried out on the workpiece that has received the first polygon machining; and a second polygon machining step in which the main axis and the tool main axis are synchronously rotated such that the rotation speed of the main axis and the tool main axis are at a ratio required for the second polygon machining, and polygon machining is carried out.
A polygon machining device comprising a main shaft gripping a workpiece, a tool spindle to which a polygon cutter is mounted, and a control unit configured to control the rotation of the main shaft and the tool spindle, being configured so as to carry out machining by a tool other than the polygon cutter on the workpiece after carrying out first polygon machining by the polygon cutter and to carry out second polygon machining by the polygon cutter after the machining, and carrying out machining on the workpiece by synchronously rotating the main shaft and the tool spindle to maintain a phase relationship between the main shaft and the tool spindle, wherein
A polygon machining method for carrying out machining by a tool other than a polygon cutter on a workpiece gripped by a main shaft that rotates after carrying out first polygon machining by the polygon cutter mounted to a tool spindle that rotates in synchronization with the main shaft while maintaining a phase relationship between the main shaft and the tool spindle, and for carrying out second polygon machining by the polygon cutter after the machining while maintaining the phase relationship between the main shaft and the tool spindle, the method comprising:
Dependencies are inferred from the claim text.