JPH0454610U

JPH0454610U -

Info

Publication number: JPH0454610U
Application number: JP9738090U
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図は本考案のクイツクチエンジホルダの一
実施例を示す縦断面図である。第２図は主軸に調
整ソケツトを挿入する状態を示す一部縦断面図で
ある。第３図は主軸に調整ソケツトを挿入し、主
軸を回転して調整ソケツトのキーを主軸のキー溝
に係合する状態を示す縦断面図である。第４図は
従来のクイツクチエンジホルダにおいて、主軸に
調整ソケツトを挿入する状態を示す一部縦断面図
である。第５図は主軸に調整ソケツトを挿入した
状態を示し一部縦断面図である。第６図は主軸に
調整ソケツトを挿入し、主軸に工具を連結する状
態を示す縦断面図である。主要な部分の符号の説明、３１……主軸、３３
……ホルダ、３５……円筒部、４１……小孔、４
３……鋼球、４７……調整ソケツト、４９……工
具側部材、５１……係合溝、５７……グリツプ、
７１……第１バネ、７３……スリーブ、７５……
第２バネ、７７……鋼球保持部、８５……挿入孔
、８７……キー溝、８９……キー、Ｔ……工具。 FIG. 1 is a longitudinal sectional view showing an embodiment of the quick change holder of the present invention. FIG. 2 is a partial longitudinal cross-sectional view showing a state in which the adjustment socket is inserted into the main shaft. FIG. 3 is a longitudinal sectional view showing a state in which the adjustment socket is inserted into the main shaft, the main shaft is rotated, and the key of the adjustment socket is engaged with the keyway of the main shaft. FIG. 4 is a partial vertical cross-sectional view showing a conventional quick change holder in which an adjustment socket is inserted into the main shaft. FIG. 5 is a partial vertical cross-sectional view showing a state in which the adjustment socket is inserted into the main shaft. FIG. 6 is a longitudinal sectional view showing a state in which the adjustment socket is inserted into the main shaft and a tool is connected to the main shaft. Explanation of symbols of main parts, 31...Main axis, 33
...Holder, 35...Cylindrical part, 41...Small hole, 4
3... Steel ball, 47... Adjustment socket, 49... Tool side member, 51... Engagement groove, 57... Grip,
71...first spring, 73...sleeve, 75...
Second spring, 77... Steel ball holding portion, 85... Insertion hole, 87... Keyway, 89... Key, T... Tool.

Claims

[Claims for Utility Model Registration] (1) A holder having a mounting portion on one side to which the main shaft of a machine tool is attached, and a cylindrical portion housing a steel ball movable in a radial direction within a predetermined range on the other side; a tool-side member that is attached to the tool and has an engagement groove that engages with the steel ball in a portion inserted into the cylindrical portion of the holder; , a sleeve having a steel ball holding part at the holder side end thereof, which engages and holds the steel ball housed in the cylindrical part of the holder into the engagement groove of the tool side member during connection. In the change holder, a grip movable in the longitudinal direction of the main shaft and always biased toward the main shaft by a first spring is fitted onto the tool side member, and between the grip and the sleeve, A quick change holder characterized in that a second spring is interposed to constantly bias the sleeve toward the main shaft with respect to the grip. (2) A key groove is formed on the inner surface of the insertion hole of the main spindle, and a key that engages with the key groove of the main spindle is inserted into the insertion hole of the main spindle and protrudes in the radial direction of the adjustment socket to which the tool is attached. 2. The quick change holder according to claim 1, wherein the quick change holder is always biased so as to