BEARING ASSEMBLY FOR USE WITH ROTATING MACHINING DEVICE

PROBLEM TO BE SOLVED: To improve load resistance capacity of a bearing assembly and to reduce workpiece-shaped damage.SOLUTION: A rotating machining device includes a segmented support housing arranged to be mounted on a workpiece and a segmented headstock mounted on the support housing and rotatabl...

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Bibliographische Detailangaben
Hauptverfasser: JOEL WALTON, HOANG VINH
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To improve load resistance capacity of a bearing assembly and to reduce workpiece-shaped damage.SOLUTION: A rotating machining device includes a segmented support housing arranged to be mounted on a workpiece and a segmented headstock mounted on the support housing and rotatable relative to the support housing about an axis. A bearing assembly 158 is disposed between the headstock and the support housing. The bearing assembly 158 includes a first race 162 having a first set of bearing elements 166 arranged to dynamically contact a first portion of the headstock and reciprocate within the bearing assembly 158 in a first direction. The at least one bearing assembly 158 also includes a second race 164 having a second set of bearing elements 168 arranged to dynamically contact a second portion of the headstock and recirculate within the bearing assembly 158 in a second direction opposite the first direction so as to promote distribution of a load applied to the bearing assembly 158.SELECTED DRAWING: Figure 3 【課題】軸受アッセンブリの耐荷重能力の向上と被加工物状の傷の低減。【解決手段】回転機械加工デバイスは、被加工物上に載置されるように配設された区分型支持筐体と、支持筐体上に載置されると共に軸を中心として支持筐体に対して回転可能である区分型主軸台とを含む。軸受アセンブリ158は、主軸台と支持筐体との間に配置される。軸受アセンブリ158は、主軸台の第1の部分に動的に接触するように、及び第1の方向に軸受アセンブリ158内で往復運動するように配設された第1の組の軸受要素166を有する第1のレース162を含む。少なくとも1つの軸受アセンブリ158はまた、主軸台の第2の部分に動的に接触するように、及び軸受アセンブリ158に加えられる荷重の分配を促進するように第1の方向とは反対の第2の方向に軸受アセンブリ158内で再び円運動するように配設された第2の組の軸受要素168を有する第2のレース164を含む。【選択図】図3