JPS63147286U

JPS63147286U -

Info

Publication number: JPS63147286U
Application number: JP4130187U
Authority: JP
Priority date: 1987-03-20
Filing date: 1987-03-20
Publication date: 1988-09-28

Description

[Brief explanation of the drawing]

第１〜７図は本考案の実施例図であり、第１図
〜第４図は各々他方の受圧室にスプリングを配し
たチヤツク装置を示し、第１図は第７図に示すチ
ヤツク装置のＸ―Ｘ線断面図、第２〜４図は各々
チヤツク爪の開閉状態の異なるチヤツク装置のＹ
―Ｙ線断面図、第５〜６図は各々一方の受圧室に
スプリングを配したチヤツク装置を示し、各々チ
ヤツク爪の開閉状態の異なるチヤツク装置のＹ―
Ｙ線断面図、第７図はチヤツク装置の取付部材周
りを示すための同チヤツク装置の斜視図である。尚図中１……チヤツク装置本体、２……シリン
ダー、２ａ……一方の受圧室、２ｂ……他方の受
圧室、３……チヤツク爪、４……ピストン、４ａ
……一方の受圧面、４ｂ……他方の受圧面、１０
……スプリング、１２……取付部材、である。 1 to 7 are illustrations of an embodiment of the present invention, and each of FIGS. 1 to 4 shows a chuck device in which a spring is arranged in the other pressure receiving chamber, and FIG. 1 shows the chuck device shown in FIG. The X-X cross-sectional view and Figures 2 to 4 are Y of chuck devices with different chuck pawls in the open and closed states.
- Y-line sectional view, Figures 5 and 6 each show a chuck device in which a spring is arranged in one pressure receiving chamber, and the chuck device Y-
A Y-line sectional view and FIG. 7 are perspective views of the chuck device showing the vicinity of the mounting member of the chuck device. In the figure, 1...chuck device main body, 2...cylinder, 2a...one pressure receiving chamber, 2b...other pressure receiving chamber, 3...chuck claw, 4...piston, 4a
...One pressure receiving surface, 4b...The other pressure receiving surface, 10
. . . Spring, 12 . . . Mounting member.

Claims

[Claims for Utility Model Registration] A chuck device that opens and closes a pair of chuck pawls 3, 3 by a double-acting cylinder piston, one for each of the pressure receiving surfaces 4a, 4b of one piston 4 and the other. In a chuck device for an ultra-small workpiece equipped with a double-acting cylinder piston that opens and closes the pair of chuck claws 3, 3 by alternately supplying air into the other pressure receiving chambers 2a, 2b; A spring 10 having a tension that does not inhibit the forward or backward movement of the piston 4 is provided on one arbitrarily selected side of the other pressure receiving chambers 2a and 2b, and at least the pressure receiving chamber on the side where the spring 10 is arranged is provided. Piston 4 to the pressure receiving chamber side on the other side
This chuck device for ultra-small workpieces is characterized in that the piston 4 can be forcibly returned even when air cannot be supplied so as to return the piston 4.