JPH0322837U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案に係る心出し構造を適用したワ
ーク加工装置の全体平面図、第２図は同ワーク加
工装置の軸方向に沿つた断面図、第３図は第２図
のＡ−Ａ方向断面図、第４図は第２図のＢ方向矢
視図、第５図は第３図のＣ−Ｃ方向断面図である
。 尚、図面中５……装置本体、７……貫通孔、８
……偏心スリーブ、９……スピンドル軸、２０…
…位置決め機構、５１，５２……軸受部、５１ａ
，５２ａ……逃げ溝、８１，８２……軸部、８１
ａ，８２ａ……逃げ面、８１ｂ，８２ｂ……摺動
面である。 Fig. 1 is an overall plan view of a workpiece processing device to which the centering structure according to the present invention is applied, Fig. 2 is a cross-sectional view of the workpiece processing device along the axial direction, and Fig. 3 is a line A-A in Fig. 2. 4 is a sectional view taken in the direction B of FIG. 2, and FIG. 5 is a sectional view taken along the line C-C of FIG. 3. In addition, in the drawing, 5... device body, 7... through hole, 8
...Eccentric sleeve, 9...Spindle shaft, 20...
...Positioning mechanism, 51, 52...Bearing section, 51a
, 52a... Relief groove, 81, 82... Shaft portion, 81
a, 82a... flank surfaces, 81b, 82b... sliding surfaces.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 装置本体に設けた軸受部で回動自在に支持され
その内部にスピンドルを回転自在に支承する偏心
スリーブにおいて、前記軸受部によつて支持され
る偏心スリーブの軸部外周面は逃げ面と摺接面と
交互に連続した多面体形状をなし、また前記軸受
部内周面の下部には偏心スリーブの摺接面との間
に隙間を形成する逃げ溝を形成したことを特徴と
する偏心スリーブの心出し構造。 In an eccentric sleeve that is rotatably supported by a bearing provided in the device body and rotatably supports a spindle therein, the outer circumferential surface of the shaft of the eccentric sleeve supported by the bearing comes into sliding contact with the flank surface. Centering of an eccentric sleeve, characterized in that it has a polyhedral shape that alternates with continuous surfaces, and that an relief groove is formed at the lower part of the inner circumferential surface of the bearing part to form a gap between it and the sliding surface of the eccentric sleeve. structure.