JPH0476305U

JPH0476305U -

Info

Publication number: JPH0476305U
Application number: JP11852490U
Authority: JP
Priority date: 1990-11-14
Filing date: 1990-11-14
Publication date: 1992-07-03

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例に係るコレツトチヤ
ツク開閉機構におけるコレツトチヤツク移動機構
の正面図、第２図はカムロールがカム溝から外れ
た状態の正面図、第３図は多軸自動盤のスピンド
ルキヤリアの部分断面図、第４図はスピンドル支
持部の詳細図、第５図は従来のコレツトチヤツク
移動機構の正面図、第６図は第５図の−線矢
視図である。図面中、１３はスピンドル、２１はコレツトチ
ヤツク、２２はコレツトチユーブ、２３はスラス
トプレート、２４はフインガレバー、２５はスプ
ール、２６はチヤツキングロール、３０はスライ
ダ、３３はレバー、３４はドラムシヤフト、３５
はカムドラム、３６はカム溝、３７はカムロール
、４１はカムロール調整手段、４２はロールホル
ダ、４３は溝、４４はピンである。 Fig. 1 is a front view of a collect chuck moving mechanism in a collect chuck opening/closing mechanism according to an embodiment of the present invention, Fig. 2 is a front view of the cam roll removed from the cam groove, and Fig. 3 is a spindle carrier of a multi-spindle automatic lathe. 4 is a detailed view of the spindle support portion, FIG. 5 is a front view of a conventional collet chuck moving mechanism, and FIG. 6 is a view taken along the - line in FIG. 5. In the drawing, 13 is a spindle, 21 is a collection chuck, 22 is a collection tube, 23 is a thrust plate, 24 is a finger lever, 25 is a spool, 26 is a chuck roll, 30 is a slider, 33 is a lever, 34 is a drum shaft, 35
36 is a cam drum, 36 is a cam groove, 37 is a cam roll, 41 is a cam roll adjusting means, 42 is a roll holder, 43 is a groove, and 44 is a pin.

Claims

[Scope of utility model registration request]

A hollow spindle rotatably supported by a main body, a collet chuck supported movably in the axial direction on the inner periphery of the end of the spindle and opened and closed by the axial movement, and the collet chuck reciprocating in the axial direction. a cam drum rotatably supported by the main body and having a cam groove formed on its outer periphery; a lever swingably supported by the main body; and one end of the lever. a spool that is fitted on the side of the collet chuck and moves back and forth parallel to the axis of the spindle as the lever swings; and a cam drum that is attached to the other end of the lever with the center of swing in between. In a collection chuck opening/closing mechanism comprising a cam roll that fits into the cam groove of the cam roll and converts the rotational movement of the cam drum into a swinging movement of the lever, for fitting and unfitting the cam roll into and from the cam groove. A collection chuck opening/closing mechanism comprising cam roll adjusting means for adjusting the attachment position of the cam roll with respect to the lever.