GROOVE-FORMING METHOD, CONTROL DEVICE FOR MACHINE TOOL AND TOOL PATH GENERATING DEVICE

摘要

A fluting method for forming a flute in a workpiece while the workpiece is moved relative to a rotating tool by the combination of a rotating feed shaft with other feed shafts, the method comprising a machining process of relatively moving the rotating tool on a tool path that runs along the direction in which the flute extends and machining the workpiece using a rotating tool with a diameter that is smaller than the width of the flute. The machining process changes the relative position of the rotating tool with respect to the workpiece and performs machining multiple times so that the rotating tool makes internal contact with a circle that has the width of the flute being formed in the workpiece as the diameter.

主权项

1. A groove-forming method which combines a rotational feed axis and other feed axes to make a rotary tool and a workpiece relatively move while forming a groove part in said workpiece, said groove-forming method comprising:
a machining step of using said rotary tool which has a diameter smaller than a width of said groove part and making said rotary tool relatively move by a tool path along a direction of extension of said groove part to machine said workpiece; wherein said machining step performs machining a plurality of times while changing a relative position of said rotary tool with respect to said workpiece so that said rotary tool is inscribed inside a circle which has the same diameter as said width of said groove part which is formed at said workpiece.