US 11,998,990 B2
Machine tool, machining method using a machine tool, and machining program for machine tool
Kentaro Hayashi, Niwa-gun (JP); Yasuharu Sumida, Niwa-gun (JP); Morikuni Kimura, Niwa-gun (JP); and Masato Yoshida, Niwa-gun (JP)
Assigned to YAMAZAKI MAZAK CORPORATION, Aichi (JP)
Filed by Yamazaki Mazak Corporation, Niwa-gun (JP)
Filed on Dec. 3, 2020, as Appl. No. 17/110,286.
Application 17/110,286 is a continuation of application No. PCT/JP2018/033224, filed on Sep. 7, 2018.
Prior Publication US 2021/0086267 A1, Mar. 25, 2021
Int. Cl. B23B 1/00 (2006.01); B23B 23/00 (2006.01); B23Q 15/12 (2006.01)
CPC B23B 1/00 (2013.01) [B23B 23/00 (2013.01); B23Q 15/12 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A machine tool comprising:
a workpiece spindle being rotatable about a rotation axis of the workpiece spindle and configured to hold a workpiece to rotate the workpiece about the rotation axis;
a tool holding device being rotatable about a tool rotation axis and configured to hold a turning tool via which turning is performed on the workpiece;
a movement mechanism configured to move the tool holding device such that the turning tool rotates relatively to the workpiece toward a target cutting direction perpendicular to the rotation axis of the workpiece;
an input interface operable by an operator; and
control circuitry configured:
to receive an input value specifying the target cutting direction from an input by the operator through the input interface;
to execute a machining program, to perform the turning, which includes an additional code which designates the target cutting direction; and
to control the movement mechanism to move the turning tool in the target cutting direction with respect to the workpiece while the control circuitry executes the additional code.