A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
MACHINING DEVICE, CERAMIC BALL AND ROLLING BEARING
To provide a machining device that can suppress cracking of plurality of green balls having diameters different from each other in an initial state, during polishing, even when using a special technique not employing a bonding material, and to provide a ceramic ball formed by the machining device, and a rolling bearing.SOLUTION: A machining device 1 comprises: a first surface plate 10; a first shaft 12; a second surface plate 20 including a holding portion 20B; a second shaft 22; a polishing layer 11; and a first elastic member 50. The first surface plate 10 includes a first surface 10c that contacts and holds a green ball 91. The first shaft 12 rotates the first surface plate 10 around an axis α. The second surface plate 20 includes a second surface 20c that opposes to the first surface 10c and contacts and holds the green ball 91, and includes the holding portion 20B that extends to protrude in a direction crossing the second surface 20c and surrounds the green ball 91. The second shaft 22 rotates the second surface plate 20 around an axis β. The polishing layer 11 polishes the green ball 91 by contacting the green ball 91. The first elastic member 50 is arranged in an inner wall portion of the holding portion 20B of the second surface plate 20.SELECTED DRAWING: Figure 1
【課題】結合材を含めない特殊な工法を用いた場合であっても、初期状態において互いに直径が大きく異なる複数のグリーンボールの研磨加工時の割れを抑制できる加工装置を提供する。また当該加工装置により形成されるセラミックス球、および転がり軸受を提供する。【解決手段】加工装置１は、第１定盤１０と、第１軸１２と、保持部２０Ｂを含む第２定盤２０と、第２軸２２と、研磨層１１と、第１弾性部材５０とを備える。第１定盤１０はグリーンボール９１に接触、保持する第１面１０ｃを含む。第１軸１２は第１定盤１０を軸α周りに回転させる。第２定盤２０は第１面１０ｃに対向し、グリーンボール９１に接触、保持する第２面２０ｃを含むとともに、第２面２０ｃに交差する方向に突出するように延びグリーンボール９１を取り囲む保持部２０Ｂを含む。第２軸２２は第２定盤２０を軸β周りに回転させる。研磨層１１はグリーンボール９１に接触することによりグリーンボール９１を研磨する。第１弾性部材５０は、第２定盤２０の保持部２０Ｂの内壁部に配置される。【選択図】図１
MACHINING DEVICE, CERAMIC BALL AND ROLLING BEARING
To provide a machining device that can suppress cracking of plurality of green balls having diameters different from each other in an initial state, during polishing, even when using a special technique not employing a bonding material, and to provide a ceramic ball formed by the machining device, and a rolling bearing.SOLUTION: A machining device 1 comprises: a first surface plate 10; a first shaft 12; a second surface plate 20 including a holding portion 20B; a second shaft 22; a polishing layer 11; and a first elastic member 50. The first surface plate 10 includes a first surface 10c that contacts and holds a green ball 91. The first shaft 12 rotates the first surface plate 10 around an axis α. The second surface plate 20 includes a second surface 20c that opposes to the first surface 10c and contacts and holds the green ball 91, and includes the holding portion 20B that extends to protrude in a direction crossing the second surface 20c and surrounds the green ball 91. The second shaft 22 rotates the second surface plate 20 around an axis β. The polishing layer 11 polishes the green ball 91 by contacting the green ball 91. The first elastic member 50 is arranged in an inner wall portion of the holding portion 20B of the second surface plate 20.SELECTED DRAWING: Figure 1
【課題】結合材を含めない特殊な工法を用いた場合であっても、初期状態において互いに直径が大きく異なる複数のグリーンボールの研磨加工時の割れを抑制できる加工装置を提供する。また当該加工装置により形成されるセラミックス球、および転がり軸受を提供する。【解決手段】加工装置１は、第１定盤１０と、第１軸１２と、保持部２０Ｂを含む第２定盤２０と、第２軸２２と、研磨層１１と、第１弾性部材５０とを備える。第１定盤１０はグリーンボール９１に接触、保持する第１面１０ｃを含む。第１軸１２は第１定盤１０を軸α周りに回転させる。第２定盤２０は第１面１０ｃに対向し、グリーンボール９１に接触、保持する第２面２０ｃを含むとともに、第２面２０ｃに交差する方向に突出するように延びグリーンボール９１を取り囲む保持部２０Ｂを含む。第２軸２２は第２定盤２０を軸β周りに回転させる。研磨層１１はグリーンボール９１に接触することによりグリーンボール９１を研磨する。第１弾性部材５０は、第２定盤２０の保持部２０Ｂの内壁部に配置される。【選択図】図１
MACHINING DEVICE, CERAMIC BALL AND ROLLING BEARING
加工装置、セラミックス球および転がり軸受
SATO NORIHIDE (author) / NAKAMURA FUMIYA (author)
2022-04-05
Patent
Electronic Resource
Japanese
IPC:
B24B
MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING
,
Maschinen, Einrichtungen oder Verfahren zum Schleifen oder Polieren
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
C04B
Kalk
,
LIME
/
F16C
SHAFTS
,
Wellen
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