JPH0315002U - - Google Patents

Description

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

第１図はロータリチヤツクの側面の断面図、第
２図はロータリチヤツクの正面図、第３図は主と
してロータリチヤツクの駆動部を表す説明図であ
る。 ４……チヤツク本体、５……プランジヤ、７…
…マスタ軸、８……回転爪、８ａ，８ｂ……工作
物把持面、１３……回転アクチユエータ。 FIG. 1 is a side cross-sectional view of the rotary chuck, FIG. 2 is a front view of the rotary chuck, and FIG. 3 is an explanatory view mainly showing the drive section of the rotary chuck. 4...chuck body, 5...plunger, 7...
...Master axis, 8... Rotating claws, 8a, 8b... Workpiece gripping surface, 13... Rotating actuator.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] チヤツク本体４に円周上等間隔かつ回転中心に
対して先広がり勾配を有し回転及び軸方向移動可
能に設けられたマスタ軸７と、該マスタ軸の先端
に着脱可能に締着され円周上等間隔に把持径の異
なる少なくとも２個の工作物把持面８ａ，８ｂを
有する回転爪８と、前記マスタ軸を軸方向移動さ
せて前記回転爪の開閉を行う第１駆動部材５，１
１，１２と、前記回転爪を同時回転させて対応す
る前記把持面を前記工作物把持位置に割出す第２
駆動部材１３〜１５とを含んでなることを特徴と
するロータリチヤツク。 A master shaft 7 is provided on the chuck main body 4 at equal intervals on the circumference and has a tapering slope with respect to the center of rotation so as to be rotatable and movable in the axial direction. A rotary claw 8 having at least two workpiece gripping surfaces 8a and 8b having different gripping diameters at equal intervals, and first drive members 5 and 1 that open and close the rotary claw by moving the master shaft in the axial direction.
1 and 12, and a second for simultaneously rotating the rotary claws and indexing the corresponding gripping surfaces to the workpiece gripping positions.
A rotary chuck comprising drive members 13-15.