JPH03103188U

JPH03103188U -

Info

Publication number: JPH03103188U
Application number: JP1135790U
Authority: JP
Priority date: 1990-02-07
Filing date: 1990-02-07
Publication date: 1991-10-25
Anticipated expiration: 2005-02-07
Also published as: JP2520388Y2

Description

[Brief explanation of the drawing]

第１図は、本考案のワーク保持装置の一実施例
の正面図であり、ワークを保持した状態を示す図
である。第２図、第３図、第４図、および第６図
は、それぞれ、第１図における−視断面図、
−視断面図、方向矢視図、および−視
断面図である。第５図は、第２図における部分拡
大図である。第７図および第８図は、第１図の実
施例の一対のチヤツクが解放動作の終端位置まで
開かされた状態を示す図であり、それぞれ、第７
図は第２図に相当する図、第８図は第７図におけ
る−視断面図である。第９図は、第１図の実
施例の一部を切り欠いて示す左側面図である。１２……ワーク保持装置、１４……ワーク、２
２……シヤフト（移動部材）、２４……エアシリ
ンダ（駆動手段）、３０……第１チヤツク、３２
……第２チヤツク、５０……第１係合部材、５２
……第２係合部材、５４……圧縮コイルスプリン
グ（第１・第２ばね部材）、５８……第３係合部
材、６２……第４係合部材。 FIG. 1 is a front view of an embodiment of the workpiece holding device of the present invention, showing a state in which a workpiece is held. FIG. 2, FIG. 3, FIG. 4, and FIG. 6 are respectively --view sectional views in FIG.
They are a - view sectional view, a direction arrow view view, and a - view cross-sectional view. FIG. 5 is a partially enlarged view of FIG. 2. 7 and 8 are diagrams showing a state in which the pair of chucks of the embodiment of FIG. 1 are opened to the final position of the release operation, respectively.
The figure corresponds to FIG. 2, and FIG. 8 is a sectional view taken from - in FIG. 7. FIG. 9 is a left side view with a portion of the embodiment shown in FIG. 1 cut away. 12... Work holding device, 14... Work, 2
2... Shaft (moving member), 24... Air cylinder (driving means), 30... First chuck, 32
...Second chuck, 50...First engagement member, 52
...second engagement member, 54...compression coil spring (first and second spring members), 58...third engagement member, 62...fourth engagement member.

Claims

[Claims for Utility Model Registration] (1) A pair of chucks each holding a workpiece, and a movable member that is reciprocated by a driving means, the movable member being moved to one end side in the reciprocating direction. During the movement, the pair of chucks are each held in a holding operation to hold the workpiece, while during the return movement in which the moving member is moved to the other end in the reciprocating direction, the pair of chucks are each released in a releasing operation to hold the workpiece. A work holding device for releasing a workpiece, which is provided on the movable member so as to be immovable relative to the reciprocating direction, and is engaged with one of the chucks of the pair of chucks when the movable member moves forward. a first engaging member that holds one chuck; and a first engaging member that is provided on the movable member so as to be movable relative to the reciprocating direction and is always biased toward the one end by a first spring member, During forward movement, the first engaging member is engaged with another chuck different from the one chuck to be engaged while being positioned at the relative movement end on the one end side, and the other chuck is engaged with the first engaging member. a second engaging member that is operated to hold and causes the other chuck to hold the work before the one chuck holds the work; a third engaging member that is engaged with one of the chucks of the pair of chucks and releases the chuck during the backward movement of the chucks; and is always urged toward the other end by the second spring member, and when the moving member moves back, the third engaging member is positioned at the relative moving end of the other end. is engaged with another chuck that is different from the one chuck being engaged, causing the other chuck to perform a releasing operation, and before the one chuck is moved to the terminal position of its releasing operation, the other chuck is A workpiece holding device comprising: a fourth engaging member that moves the member to a final position of its opening operation. (2) The first spring member and the second spring member are
The workpiece holding device according to claim 1, wherein the workpiece holding device is a common device disposed across the second engagement member and the fourth engagement member.