US 12,030,207 B2
Workpiece machining apparatus
Ippei Muramoto, Yao (JP); and Tomoki Takada, Yao (JP)
Assigned to SAKURA SEIKI CO., LTD., Yao (JP); UCHIDA YOKO CO., LTD., Tokyo (JP); and UCHIDA YOKO GLOBAL CO., LTD., Tokyo (JP)
Appl. No. 17/772,066
Filed by Sakura Seiki Co., Ltd., Yao (JP); UCHIDA YOKO CO., LTD, Tokyo (JP); and UCHIDA YOKO GLOBAL CO., LTD., Tokyo (JP)
PCT Filed Oct. 29, 2020, PCT No. PCT/JP2020/040710
§ 371(c)(1), (2) Date Apr. 26, 2022,
PCT Pub. No. WO2021/090763, PCT Pub. Date May 14, 2021.
Claims priority of application No. 2019-200460 (JP), filed on Nov. 5, 2019.
Prior Publication US 2022/0297336 A1, Sep. 22, 2022
Int. Cl. B26F 1/42 (2006.01)
CPC B26F 1/42 (2013.01) 15 Claims
OG exemplary drawing
 
1. A workpiece machining apparatus comprising:
a first plate-shaped member including one first principal surface and the other first principal surface on which a machining member for machining a sheet-shaped workpiece by applying a pressure to a principal surface of the workpiece is to be placed;
a second plate-shaped member including one second principal surface and the other second principal surface, the second plate-shaped member being flexible and being arranged such that the one second principal surface faces the other first principal surface with the machining member interposed therebetween;
a first pressure member for applying a first pressure directed from the one first principal surface side toward the other first principal surface side to a portion of the one first principal surface;
a second pressure member for applying a second pressure directed from the other second principal surface side toward the one second principal surface side to a portion of the other second principal surface;
a first changing unit for changing a portion that the first pressure member pressurizes;
a second changing unit for changing a portion that the second pressure member pressurizes such that the portion that the second pressure member pressurizes is aligned with the portion that the first pressure member pressurizes when viewed from a direction crossing the other second principal surface; and
a detection unit configured to detect a position of the workpiece fed between the one second principal surface and the machining member,
wherein, on the basis of a result of detection by the detection unit, the first changing unit starts to change the portion that the first pressure member pressurizes.