JPS62168227U

JPS62168227U -

Info

Publication number: JPS62168227U
Application number: JP5676286U
Authority: JP
Priority date: 1986-04-17
Filing date: 1986-04-17
Publication date: 1987-10-26

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例に係るクランプ装置
を表す断面図、第２図はその一部を抽出して拡大
して表す断面図、第３図は従来のクランプ装置を
示す断面図である。図面中、２はテーブルベース、３は回転テーブ
ル、２４はクランプシユ、２６はクランプシリン
ダ、２６ａは円環状溝、２６ｂは凹部、２７はク
ランプピストン、２７ａは突起、３２は作動流体
室である。 Fig. 1 is a cross-sectional view showing a clamp device according to an embodiment of the present invention, Fig. 2 is a cross-sectional view showing a part of the clamp device extracted and enlarged, and Fig. 3 is a cross-sectional view showing a conventional clamp device. be. In the drawings, 2 is a table base, 3 is a rotary table, 24 is a clamp shoe, 26 is a clamp cylinder, 26a is an annular groove, 26b is a recess, 27 is a clamp piston, 27a is a protrusion, and 32 is a working fluid chamber.

Claims

[Scope of utility model registration request]

A clamp device that prevents rotation of a rotary table that is rotatably supported on a table base includes a clamp that is slidably provided on the rotary table in a non-rotatable state and can press against the table base, and a clamp that is attached to the table base and rotates. An annular clamp cylinder having an annular groove along the rotational direction of the table and a rotation prevention engagement part facing into the annular groove, and a rotation prevention engagement part housed in the annular groove of the clamp cylinder. 1. A clamping device comprising: an annular clamp piston that engages with the annular groove and receives working fluid pressure supplied into the annular groove to press the clamp shaft against the table base.