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AssigneesKitagawa Iron Works Co., Ltd., Okuma Corporation
InventorsNaoyuki Masatsugu, Ikuhisa Fujii, Kazuhisa Miyaka
Estimating the term…
Even though the shape and size of an aluminum wheel to be chucked for machining is changed, it is possible to easily deal with this situation and to simply chuck the same. In a finger chuck which finger levers 5 are swingably mounted in the radius direction via fulcrum point parts 8 installed at adequately spaced positions in the circumferential direction of the outer circumference of a chuck body, the front end face part of the chuck body front part, which constitutes the front portion of said fulcrum point parts, is eliminated, a plurality of front end face parts 12 which are intended to be selectively replaced and mounted at said eliminated portion are formed integral with each other, and at this time said plurality of front end face parts are provided with a clamp seat 14 and a centering member 23 so that each of said front end face parts can be applied to specified kinds of different workpieces w.
A front part replacement type finger chuck in which finger levers are swingably mounted in the radial direction via fulcrum point parts installed at positions spaced in the circumferential direction of the outer circumference of a chuck body, said finger chuck comprising a base portion adapted to be fixed to a spindle of a machine tool and a front end face portion adapted to hold a workpiece having a first configuration, said front end face portion comprising a plurality of front end face parts integral with each other, and the front part replacement type finger chuck further comprising means for releasably fixing said front end face portion to said base portion such that said front end face portion can be removed from said base portion when said base portion is fixed to the spindle of the machine tool.
A front part replacement type finger chuck comprising a plurality of chuck body front parts formed integral with each other, said plurality of chuck body front parts being provided with a finger lever at a fulcrum point part at the outer circumference of the chuck body front parts and a clamp seat and a centering member at the front portion of the chuck body front parts, the clamp seat and the centering member being applicable to specified kinds of workpieces which are different from each other.
A front part replacement type finger chuck in which finger shafts are longitudinally slidably and rotatably mounted at positions spaced in the circumferential direction of the outer circumference of a chuck body, said finger chuck comprising a base portion adapted to be fixed to a spindle of a machine tool and a front end face portion adapted to hold a workpiece having a first configuration, said front end face portion comprising a plurality of front end face parts integral with each other, and the front part replacement type finger chuck further comprising means for releasably fixing said front end face portion to said base portion such that said front end face portion can be removed from said base portion when said base portion is fixed to the spindle of the machine tool.
Dependencies are inferred from the claim text.