JPH0294007U

JPH0294007U -

Info

Publication number: JPH0294007U
Application number: JP160989U
Authority: JP
Priority date: 1989-01-12
Filing date: 1989-01-12
Publication date: 1990-07-26

Description

[Brief explanation of the drawing]

第１図乃至第４図は本発明の実施例に係る工具
保持装置を示し、第１図は工具を保持装置に装着
した状態、第２図は該保持装置を工作機械主軸端
へ装着した状態を示す一部切欠き断面図、第３図
は工具と保持装置間の連結部を示す要部断面図、
第４図は第１図のＡ―Ａ線断面図を示す。第５図
は従来技術に係る工具保持装置を示す断面図であ
る。１０……本体、２０……コレツト、３０……締
付ナツト、３３〜３６……ロツク手段。 1 to 4 show a tool holding device according to an embodiment of the present invention, FIG. 1 shows a state in which a tool is attached to the holding device, and FIG. 2 shows a state in which the holding device is attached to the end of the main shaft of a machine tool. FIG. 3 is a partially cutaway sectional view showing the connection between the tool and the holding device;
FIG. 4 shows a sectional view taken along the line AA in FIG. 1. FIG. 5 is a sectional view showing a tool holding device according to the prior art. 10... Body, 20... Collet, 30... Tightening nut, 33-36... Locking means.

Claims

[Claims for Utility Model Registration] (1) A cylindrical body that is removably installed in the main shaft of a machine, and that is inserted into a central insertion hole provided on the front end side of the main body and protrudes from at least the insertion part. a tool gripping collet with a threaded portion on the outer periphery of the front end;
In a tool holding device comprising a clamping body rotatably attached to the main body so as to be able to be screwed into the collet screw portion, a locking means capable of preventing relative movement between the clamping body and the main body is attached to the clamping body. , a main body, or a tool holding device interposed between both members. (2) A cylindrical body that is removably installed in the main shaft of the machine, and a threaded portion that is inserted into a central insertion hole provided on the front end surface of the main body and that protrudes from at least the central insertion hole. A tool holding device comprising a tool gripping collet provided therein and a clamping body rotatably attached to the main body so as to be able to be screwed into the threaded part of the collet, and capable of preventing relative movement between the clamping body and the main body. A locking means is interposed between the tightening body, the main body, or both members, and the locking means is formed of a member or a combination of members that does not substantially cause load imbalance due to the interposition of the locking means. The tool holding device described in item (1). (3) The locking means includes a screw hole extending from the tightening body to the outer surface of the body or from the body to the outer surface of the tightening body, and a headless set screw screwed into the screw hole so as to substantially fill the inside of the screw hole. The tool holding device according to claim (2), comprising: (4) The locking means is constituted by at least a plurality of screw members screwed into the tightening body or the main body so as to be able to press against the outer surface of the main body or the outer surface of the tightening body, and
3. The tool holding device according to claim 2, wherein the screw member is provided at a symmetrical position on the clamping body or main body side with respect to the tool rotation axis.