JPH0319608U

JPH0319608U -

Info

Publication number: JPH0319608U
Application number: JP7885489U
Authority: JP
Priority date: 1989-07-04
Filing date: 1989-07-04
Publication date: 1991-02-26

Description

[Brief explanation of drawings]

第１図乃至第４図は本考案に係る密閉型チヤツ
ク装置の実施例を示し、第１図は第１の実施例を
示す縦断面図、第２図は第１図の−線断面図
、第３図は第２の実施例を示す縦断面図、第４図
は第３の実施例を示す縦断面図であり、第５図は
密閉型チヤツク装置が適用されるワイヤ放電加工
機を断面で示す構成図、第６図は加工手順を示す
斜視図、第７図は加工例を示す工作物の斜視図、
第８図は工作物の形状と加工状態との関係を示す
断面図、第９図は他の加工例を示す工作物の斜視
図であり、第１０図は従来のチヤツク装置を示す
断面図である。１……工作物、２１……回転軸、２５……密閉
型チヤツク装置、７０……ホルダ、７２……カバ
ー体、７６……駆動リング体、７８……カム溝、
８０……ピニオン、８３，８６……環状シール部
材、８５……把持部材、８７……従動ピン。 1 to 4 show an embodiment of a closed chuck device according to the present invention, FIG. 1 is a longitudinal sectional view showing the first embodiment, FIG. 2 is a sectional view taken along the line -- in FIG. 1, FIG. 3 is a longitudinal sectional view showing the second embodiment, FIG. 4 is a longitudinal sectional view showing the third embodiment, and FIG. 5 is a sectional view of a wire electrical discharge machine to which a closed chuck device is applied. Fig. 6 is a perspective view showing the processing procedure, Fig. 7 is a perspective view of the workpiece showing an example of processing,
Fig. 8 is a sectional view showing the relationship between the shape of the workpiece and the machining state, Fig. 9 is a perspective view of the workpiece showing another machining example, and Fig. 10 is a sectional view showing a conventional chuck device. be. DESCRIPTION OF SYMBOLS 1... Workpiece, 21... Rotating shaft, 25... Sealed chuck device, 70... Holder, 72... Cover body, 76... Drive ring body, 78... Cam groove,
80... Pinion, 83, 86... Annular seal member, 85... Gripping member, 87... Driven pin.

Claims

[Claims for Utility Model Registration] A holder attachable to a shaft rotatable about one axis; a cover body fixed to the holder and forming an annular space between the holder; and a cover body that slides in the radial direction of the holder. a plurality of gripping members movably penetrating the wall surface of the holder and supported by the holder; a drive ring body disposed within the annular space and rotatably supported by the holder; the drive ring body and the gripping member; a conversion means provided between the driving ring body and converting the rotational movement of the drive ring body into a sliding movement of the gripping member; a driving body for liquid-tightly sealing between the holder and the cover body and between the driving body and the cover body or the holder, respectively; and a sealing member for liquid-tightly sealing between the gripping member and the holder. A closed chuck device comprising: a sealing member for sealing;