公开(公告)号：US09862068B2

公开(公告)日：2018-01-09

申请号：US14906933

申请日：2014-06-19

Applicant: SINTOKOGIO, LTD.

Inventor： Naoyuki Ogiwara ,  Shigeru Tanahashi

IPC: B24B31/06 ,  B24B31/12 ,  B24B31/073

CPC classification number: B24B31/064 ,  B24B31/073 ,  B24B31/12

Abstract: A workpiece holding jig is a vibratory barreling jig which holds a flat workpiece when the workpiece is polished by a vibratory barreling device using polishing media. The workpiece holding jig includes disk-shaped guard members and each having an outer shape larger than the workpiece and disposed so as to face each other and a holding member holding the workpiece inside a housing space so that the entire workpiece is located inside the columnar housing space. The guard members and are respectively provided with window portions communicating with the housing space. The window portions and the annular imaginary curved surface extending to connect the peripheral edges of the guard members are configured to allow the polishing media to pass between the inside and outside of the housing space.

公开(公告)号：US11273532B2

公开(公告)日：2022-03-15

申请号：US16088935

申请日：2017-03-24

Applicant: SINTOKOGIO, LTD.

Inventor： Shigeru Tanahashi ,  Naoyuki Ogiwara

IPC: B24B1/04 ,  B24B31/027 ,  B24B31/06 ,  B24B31/12 ,  B24B31/067 ,  B24B31/02 ,  B24B31/00 ,  B24B49/00 ,  B24B41/02

Abstract: In one embodiment, a vibration barrel polishing method using a vibration barrel polishing system that includes a polishing tank having a bottom surface therein and a polishing jig capable of holding a workpiece and rotatable around a rotation axis is provided. This method includes a step of supporting the polishing jig in the polishing tank in a state in which a lowermost portion of the polishing jig is separated from the bottom surface, a clearance d between the lowermost portion of the polishing jig and the bottom surface being greater than or equal to a grain diameter of a polishing medium, a step of causing the polishing medium to flow in the polishing tank, and a step of rotating the polishing jig around the rotation axis in the state in which the lowermost portion of the polishing jig is separated from the bottom surface.