JPH0454608U

JPH0454608U -

Info

Publication number: JPH0454608U
Application number: JP9803690U
Authority: JP
Priority date: 1990-09-17
Filing date: 1990-09-17
Publication date: 1992-05-11

Description

[Brief explanation of the drawing]

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′
……凸状部（体）、４，４ａ，４′……凹状部（
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、１４……凸状
体の外周面、１５……凹状体の内周面。 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 part (body), 4, 4a, 4'... Concave part (
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, 14...Outer peripheral surface of convex body, 15...Inner peripheral surface of concave body.

Claims

[Scope of utility model registration request]

The tip of one of the coupling shaft member and the coupled shaft member coupled thereto is formed into a tapered convex body, and the other shaft member is tightly shrink-fitted into the convex body. A shaft member on which the convex body is formed is formed of a material having a coefficient of thermal expansion lower than that of the shaft member on which the concave body is formed, and a shaft member on which the concave body is formed. A shaft coupling device provided with means for heating and cooling a shaft member.