JPS61178611U

JPS61178611U -

Info

Publication number: JPS61178611U
Application number: JP6026985U
Authority: JP
Priority date: 1985-04-24
Filing date: 1985-04-24
Publication date: 1986-11-07

Description

[Brief explanation of the drawing]

第１図〜第７図は本考案の一実施例にかかり、
第１図はトレパニングツールホルダの縦断面図、
第２図は第１図の―断面図、第３図は第１図
の―断面図、第４図は第１図の部拡大図、
第５図は第４図の―矢視図、第６図、第７図
はそれぞれ作動状態を表わすトレパニングツール
ホルダの縦断面図である。また、第８図、第９図
はコアを自動的に排出し得るようにした従来のト
レパニングツールの縦断面図である。図面中、１４はコア、１５はワーク、２１はホ
ルダ本体、２３はトレパニングツール、２５は穴
部、２６は押し出し部材、３１，３４，４０はば
ね、３３はロツクピン、３７は解除ピンである。 Figures 1 to 7 show an embodiment of the present invention,
Figure 1 is a longitudinal cross-sectional view of the trepanning tool holder.
Figure 2 is a sectional view of Figure 1, Figure 3 is a sectional view of Figure 1, Figure 4 is an enlarged view of Figure 1,
FIG. 5 is a view taken along the - arrow in FIG. 4, and FIGS. 6 and 7 are longitudinal sectional views of the trepanning tool holder showing the operating state, respectively. Furthermore, FIGS. 8 and 9 are vertical cross-sectional views of a conventional trepanning tool that can automatically eject the core. In the drawing, 14 is a core, 15 is a workpiece, 21 is a holder body, 23 is a trepanning tool, 25 is a hole, 26 is an extrusion member, 31, 34, 40 are springs, 33 is a lock pin, and 37 is a release pin. .

Claims

[Scope of utility model registration request]

A holder main body to which a trepanning tool is fixed to the distal end thereof, and a holder main body that is slidably attached in the axial direction in a hole formed in the holder main body and is biased toward the distal end side by a spring, and the trepanning tool is fixed to the trepanning tool. an extrusion member that protrudes into the cylindrical space of the tool to extrude the core remaining in the space; and a extrusion member that is attached to the extrusion member so as to be able to protrude toward the inner wall of the hole of the holder body and is biased by a spring in the protruding direction. and is slidably fitted into a groove formed in the axial direction on the inner wall of the hole, and is provided at the end of the groove when the extrusion member is pushed in against a spring that biases the extrusion member. a lock pin that is fitted into a recessed portion to lock the push-out member in that position; and a spring that engages with the lock pin that has been fitted into the recessed portion and biases the lock pin, and the lock pin is pushed out of the recessed portion and pushed out from the recessed portion. A trepanning tool holder characterized by comprising a release pin for releasing the lock.