JPH0285515U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の実施例を示す要部断面図、第
２図および第３図はその−および−断面
図、第４図は規制体の解除作動状態を示す要部断
面図、第５図は従来例を示す要部断面側面図であ
る。 １０：主軸、１１：取付けリング、１２：ホル
ダ、１３：スリーブ、１７：クラツチ筒、１７ａ
：凹部、１７ｂ：係合溝、１８：連結軸、１８ａ
：軸孔、１８ｂ：ねじ軸、１８ｃ：フランジ、１
８ｄ：ピン孔、１９：リング、２０：弾性体、２
１：係止ピン、２１ａ：頭部、２２：シリンダロ
ツド（駆動体）、２３：弾性体、２４：規制ピン
（規制体）、２４ａ：爪、２４ｂ：ガイド溝、２
４ｃ：頭部、２５：弾性体、２６：ガイドピン、
２７：コレツト、２７ａ：スリツト、２７ｂ：右
端、２８：当てリング、２９：係止リング、３０
：作動ロツド、３０ａ：頭部、３０ｂ：係止凹部
、ア：ワーク。 Fig. 1 is a sectional view of the main part showing an embodiment of the present invention, Figs. 2 and 3 are - and - sectional views thereof, Fig. 4 is a sectional view of the main part showing the release operation state of the regulator, and Fig. 5 The figure is a sectional side view of a main part showing a conventional example. 10: Main shaft, 11: Mounting ring, 12: Holder, 13: Sleeve, 17: Clutch cylinder, 17a
: recess, 17b: engagement groove, 18: connecting shaft, 18a
: Shaft hole, 18b: Screw shaft, 18c: Flange, 1
8d: pin hole, 19: ring, 20: elastic body, 2
1: Locking pin, 21a: Head, 22: Cylinder rod (driver), 23: Elastic body, 24: Regulating pin (regulating body), 24a: Claw, 24b: Guide groove, 2
4c: Head, 25: Elastic body, 26: Guide pin,
27: Collet, 27a: Slit, 27b: Right end, 28: Holding ring, 29: Locking ring, 30
: Actuation rod, 30a: Head, 30b: Locking recess, A: Work.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 主軸に連結したスリーブの外周に胴部の一部が
周方向に分割された筒状のコレツトをテーパ嵌合
させ、スリーブの軸心部に作動ロツドを遊嵌させ
、作動ロツドの一端を主軸の軸心部にて軸方向に
移動する駆動体に連結し、作動ロツドの他端をコ
レツトの外端面に当接させてなるコレツトチヤツ
クにおいて、作動ロツドの内端部をその外周に環
状の係止凹部を形成して駆動体の軸心部に嵌合し
、駆動体にその外周から前記係止凹部に向かつて
貫通するピン孔を形成し、ピン孔に該ピン孔より
も若干長寸の係止ピンを嵌合するとともに弾性体
により半径方向外方に移動付勢し、駆動体に筒状
のクラツチ筒を嵌合するとともにクラツチばねに
より駆動体の外端方向に移動付勢し、クラツチ筒
の内周外端部に前記係止ピンの半径方向外端部が
嵌合可能の凹部を形成し、クラツチ筒の軸方向外
方への移動を規制する規制体を設けたことを特徴
とするコレツトチヤツクの作動ロツド連結装置。 A cylindrical collet whose body is partially divided in the circumferential direction is tapered fitted onto the outer periphery of the sleeve connected to the main shaft, an actuating rod is loosely fitted into the axial center of the sleeve, and one end of the actuating rod is connected to the main shaft. In a collector chuck that is connected to a drive body that moves in the axial direction at the shaft center and has the other end of the actuating rod in contact with the outer end surface of the collet, the inner end of the actuating rod has an annular locking recess on its outer periphery. A pin hole is formed in the drive body and passes through the drive body from its outer periphery toward the locking recess, and the pin hole is slightly longer than the locking hole. The pin is fitted and urged to move outward in the radial direction by an elastic body, and the cylindrical clutch cylinder is fitted to the drive body, and the clutch spring is urged to move towards the outer end of the drive body, and the clutch cylinder is forced to move outward in the radial direction. The operation of the collet chuck is characterized in that a recess into which the radially outer end of the locking pin can fit is formed at the outer end of the inner periphery, and a regulating body is provided for regulating outward movement in the axial direction of the clutch cylinder. Rod coupling device.