JPS641803U

JPS641803U -

Info

Publication number: JPS641803U
Application number: JP9456687U
Authority: JP
Priority date: 1987-06-22
Filing date: 1987-06-22
Publication date: 1989-01-09
Also published as: JPH0340495Y2

Description

[Brief explanation of the drawing]

第１図は本考案一実施例の一部軸断面図、第２
図は実施例の作用を説明するための一部軸断面図
、第３図は実施例に使用される楔状摺動部材の平
面図、第４図は第３図の矢視の側面図、第５図
は実施例に使用されるスピースナツトの平面図、
第６図は第５図の矢視の側面図、第７図は本考
案の他の実施例の軸断面図、第８図は従来のツー
ルクランプ装置の軸断面図である。１……楔状摺動部材、２……楔面、３……突部
、４……孔、５……底面、６……スピースナツト
、７……螺合部、８……球状体、９……貫通孔、
１０……球状体保持部、１１，１２……スリツト
、１３……主軸、１４……傾斜面、１５……ピス
トン、１６……バネ、１７，１７ａ……ドローバ
、１８，１８ａ……ねじ部、１９……倍力機構、
２０，２１……軸受、２２……不動側、２３……
テーパ孔、２４……ツール、２５……プルスタツ
ド、２６，３０……爪、２７……ナツト、２８…
…止め具、２９……シリンダ、３１……テーパ部
。 Fig. 1 is a partial axial sectional view of one embodiment of the present invention;
3 is a plan view of a wedge-shaped sliding member used in the embodiment; FIG. 4 is a side view taken in the direction of the arrow in FIG. 3; Figure 5 is a plan view of the spies nut used in the example;
6 is a side view taken in the direction of the arrow in FIG. 5, FIG. 7 is an axial sectional view of another embodiment of the present invention, and FIG. 8 is an axial sectional view of a conventional tool clamp device. DESCRIPTION OF SYMBOLS 1... Wedge-shaped sliding member, 2... Wedge surface, 3... Projection, 4... Hole, 5... Bottom surface, 6... Speed nut, 7... Threaded part, 8... Spherical body, 9... ...through hole,
10... Spherical body holding part, 11, 12... Slit, 13... Main shaft, 14... Inclined surface, 15... Piston, 16... Spring, 17, 17a... Drawbar, 18, 18a... Threaded part , 19...boosting mechanism,
20, 21...bearing, 22...immovable side, 23...
Tapered hole, 24... Tool, 25... Pull stud, 26, 30... Nail, 27... Nut, 28...
...Stopper, 29...Cylinder, 31...Tapered portion.

Claims

[Scope of utility model registration request]

A drawbar is inserted into the main shaft along the axis of the main shaft to clamp a tool inserted into the main shaft, and opens and closes the tool clamping pawl against the spring force by the pressing force of the abutting piston. A boosting mechanism provided at a rear end portion, which is slidably attached to the outer periphery of the drawbar, forms a wedge surface that contracts rearward on the outer periphery side, and abuts and engages with the piston. a wedge-shaped sliding member having a protrusion formed to protrude toward the piston side, the front end surface of which is disposed in contact with the spring; and the wedge-shaped sliding member screwed into the drawbar. It is loosely inserted on the outer periphery of the main shaft, and is slidably supported on the inner periphery of the main shaft.
a spies nut that holds a spherical body that abuts the wedge surface of the wedge-shaped sliding member; and a spies nut that is provided on the inner periphery of the main shaft that holds the spies nut, and that is pressed against the outer periphery of the spherical body when the spheroid comes into contact with the wedge surface. A tool clamping device having a boosting mechanism, characterized in that the tool clamping device has an inclined surface that is formed so as to extend backwardly.