JPS61199306U

JPS61199306U -

Info

Publication number: JPS61199306U
Application number: JP8319185U
Authority: JP
Priority date: 1985-05-31
Filing date: 1985-05-31
Publication date: 1986-12-13
Also published as: JPH0121694Y2

Description

[Brief explanation of drawings]

第１図はこの考案装置を用いたフエイスクラン
プチヤツクの縦断側面図、第２図は同上の正面図
、第３図は進退軸の斜視図、第４図は第２図―
線の拡大断面図、第５図はダルマ孔形成部の一
部切欠正面図である。１…本体、２…軸、３…締付部材、５…進退軸
、６…進退部材、７…雌ネジ、８…雄ネジ、９…
ピニオンギヤ、１０…ギヤ、１１…進退板、２０
…係合ピン、２２…ピン孔、２１…後壁。 Fig. 1 is a vertical sectional side view of a face clamp chuck using this device, Fig. 2 is a front view of the same, Fig. 3 is a perspective view of the forward and backward axis, and Fig. 4 is the same as Fig. 2.
FIG. 5 is an enlarged cross-sectional view of the line and a partially cutaway front view of the Darma hole forming part. DESCRIPTION OF SYMBOLS 1...Main body, 2...Shaft, 3...Tightening member, 5...Movement/retraction shaft, 6...Movement/retraction member, 7...Female thread, 8...Male thread, 9...
Pinion gear, 10...Gear, 11...Advance/retreat plate, 20
...Engagement pin, 22...Pin hole, 21...Rear wall.

Claims

[Scope of utility model registration request]

A plurality of tightening members are attached to the front of a hollow chuck body so as to be rotatable and move forward and backward, and a shaft that rotates together with each of the tightening members is rotated by a drive mechanism provided within the main body, In the face clamp chuck, which is configured to move forward and backward, a female thread is provided at the center of the forward and backward member mounted in the main body so as to be rotatable and forward and backward, and the forward and backward shaft provided at the center of the main body cannot rotate with respect to the main body. and the external male thread of this advancing/retracting shaft is screwed together with the female thread, and the male thread and the female thread have a large lead angle to convert the advancing/retracting movement of one screw into the rotational movement of the other screw. A pin hole with which the engagement pin on the rear side of the reciprocating member engages shall be provided on the front surface of the rear wall of the main body, so that when the retractable member and the retractable shaft move forward, the engagement pin and the pin hole are concentric with the retractable member. It is eccentric along the circumference, and when the advancing/retracting shaft retreats, the advancing/retracting member rotates so that the engagement pin aligns with the pin hole, and then both the advancing/retracting member and the advancing/retracting shaft retreat,
a gear on the outer periphery of the advancing/retracting member is engaged with a pinion gear provided on each of the shafts, and a advancing/retracting plate is attached to be rotatable with respect to the advancing/retracting member so as to move forward and backward together;
The shaft of the tightening member is a drive device for a face clamp chuck which is connected to allow rotation of the shaft and move forward and backward together in the axial direction.