JPS5912507U

JPS5912507U - Rotary tool holding device

Info

Publication number: JPS5912507U
Application number: JP10907982U
Authority: JP
Inventors: 宣夫福久
Original assignee: Individual
Current assignee: Individual
Priority date: 1982-07-19
Filing date: 1982-07-19
Publication date: 1984-01-26
Also published as: JPS61969Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図ないし第３図はこの考案の工具保持装置を有する
工具保持具の一実施例を示す図で、第１図は縦断面図、
第２図は保持具主体の正面図、第３図は内筒の横断面図
である。第４図および第５図は内筒の他の実施例を示す
縦断面図および横断面図、第６図および第７図は中央部
における弾性変形を制限した内筒の構造を示す縦断面図
である。図中、１は工具保持具、３は工具の柄杆、５は外筒、６
は内筒、７は空所、９はシリンダ穴、１０はプランジャ
、１５は螺条、１６はカバー、１８はリング、１９はボ
ールである。1 to 3 are views showing an embodiment of a tool holder having a tool holder of this invention, and FIG. 1 is a longitudinal sectional view;
FIG. 2 is a front view of the main body of the holder, and FIG. 3 is a cross-sectional view of the inner cylinder. Figures 4 and 5 are longitudinal cross-sectional views and cross-sectional views showing other embodiments of the inner cylinder, and Figures 6 and 7 are longitudinal cross-sectional views showing the structure of the inner cylinder in which elastic deformation in the central portion is restricted. It is. In the figure, 1 is a tool holder, 3 is a tool handle, 5 is an outer cylinder, and 6 is a tool holder.
1 is an inner cylinder, 7 is a cavity, 9 is a cylinder hole, 10 is a plunger, 15 is a thread, 16 is a cover, 18 is a ring, and 19 is a ball.

Claims

[Scope of utility model registration request]

(1) An outer cylinder with a plurality of cylinder holes in the wall thickness, and an inner cylinder with a large number of axial cavities or grooves in the wall thickness or on the outer circumferential surface that are not open at both ends. Both ends are airtightly fitted and fixed, and the cavity or groove of this inner cylinder is communicated with the cylinder hole, and a plunger is inserted into the cylinder hole and sealed in the cavity formed between these respective members. Pressure is applied to the working fluid through the plunger by a cover attached to the outer cylinder, and the tool is gripped by elastically deforming the inner diameter surface of the inner cylinder by the pressure of the working fluid. Rotary tool holding device.

(2) By providing a solid portion or a rib at the center of the inner cylinder, the amount of deformation of the inner diameter surface at the center of the inner cylinder is limited.
A rotating tool holding device according to claim 1 of the utility model registration claim.