JPH0454605U

JPH0454605U -

Info

Publication number: JPH0454605U
Application number: JP9803390U
Authority: JP
Priority date: 1990-09-17
Filing date: 1990-09-17
Publication date: 1992-05-11

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示す縦断正面図、
第２図は同他の実施例を示す縦断正面図、第３図
は同他の実施例の要部断面図、第４図は同他の実
施例の要部斜視図、第５図Ａ，Ｂは本考案の作用
を説明するための説明図、第６図Ａ，Ｂは従来技
術の作用説明図である。１，１ａ……結合軸部材（主軸）、２，２ａ…
…被結合軸部材（工具駆動軸）、３，３ａ，３′
……凸状体（体）、４，４ａ，４′……凹状体（
体）、５，５ａ……凸状部側の端面、６，６ａ…
…凹状部の側面、９，９′……高速加熱装置、１
０，１２，１３……高速冷却装置。 FIG. 1 is a longitudinal sectional front view showing an embodiment of the present invention;
Fig. 2 is a vertical sectional front view showing another embodiment, Fig. 3 is a sectional view of the main part of the same other embodiment, Fig. 4 is a perspective view of the main part of the same other embodiment, Fig. 5A, B is an explanatory diagram for explaining the operation of the present invention, and FIGS. 6A and 6B are explanatory diagrams for explaining the operation of the prior art. 1, 1a...Connection shaft member (main shaft), 2, 2a...
...Coupled shaft member (tool drive shaft), 3, 3a, 3'
... Convex body (body), 4, 4a, 4'... Concave body (
body), 5, 5a... end surface on the convex portion side, 6, 6a...
...Side surface of concave portion, 9,9'...High speed heating device, 1
0, 12, 13...High speed cooling device.

Claims

[Scope of utility model registration request]

A concave body in which the tip of one of the coupling shaft member and the coupled shaft member coupled thereto is formed into a convex body, and the other shaft member is closely fit into the convex body in a shrink fit state. and the shaft member on which the convex body is formed is made of a material having a lower coefficient of thermal expansion than the shaft member on which the concave body is formed, and further, the abutting end surfaces of both the shaft members are tapered. A shaft coupling device comprising a means for heating and cooling a shaft member on which the concave body is formed.