US 11,980,985 B2
Processing device and cut-processing method
Takehiro Hayasaka, Nagoya (JP); Eiji Shamoto, Nagoya (JP); and Soohyun Nam, Nagoya (JP)
Assigned to NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM, Nagoya (JP); DENSO DAISHIN CORPORATION, Tokoname (JP); and DENSO CORPORATION, Kariya (JP)
Appl. No. 16/967,040
Filed by NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM, Nagoya (JP); DENSO DAISHIN CORPORATION, Tokoname (JP); and DENSO CORPORATION, Kariya (JP)
PCT Filed Feb. 1, 2019, PCT No. PCT/JP2019/003547
§ 371(c)(1), (2) Date Aug. 3, 2020,
PCT Pub. No. WO2019/155986, PCT Pub. Date Aug. 15, 2019.
Claims priority of application No. 2018-019525 (JP), filed on Feb. 6, 2018.
Prior Publication US 2021/0039216 A1, Feb. 11, 2021
Int. Cl. B23Q 15/12 (2006.01); B23Q 17/09 (2006.01); G05B 19/416 (2006.01)
CPC B23Q 15/12 (2013.01) [B23Q 17/0976 (2013.01); G05B 19/4163 (2013.01); G05B 2219/49077 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A machining apparatus comprising:
a rotation mechanism configured to rotate a spindle to which a cutting tool or workpiece is attached;
a rotation controller configured to control the rotation mechanism for rotation of the spindle;
a feed mechanism configured to move the cutting tool relative to the workpiece; and
a movement controller configured to control the feed mechanism to bring the cutting tool into contact with the workpiece, while the spindle is rotating, to cause the cutting tool to cut the workpiece, wherein
the rotation controller performing an acceleration control mode under which the rotation of the spindle is kept accelerated or a deceleration control mode under which the rotation of the spindle is kept decelerated, and
the movement controller brings the cutting tool into contact with the workpiece after the rotation controller starts the rotation of the spindle, and separates the cutting tool from the workpiece while a rotation speed of the spindle is put under the acceleration control mode or deceleration control mode performed by the rotation controller.