JPS61184605U

JPS61184605U -

Info

Publication number: JPS61184605U
Application number: JP6908685U
Authority: JP
Priority date: 1985-05-10
Filing date: 1985-05-10
Publication date: 1986-11-18

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す縦断面図、第
２図は第１図の正面図、第３図は第１図の―
線に沿う横断面図、第４図の矢印方向から見た
部分的側面図、第５図は楔部材２４の正面図であ
る。１０……主軸側センタ、１２……センタ本体、
１４……主軸、１６……第１軸、２４……楔部材
、２８……カム溝、３０……ピン、３６……第２
軸、４０……アクチユエータ。 Fig. 1 is a longitudinal cross-sectional view showing one embodiment of the present invention, Fig. 2 is a front view of Fig. 1, and Fig. 3 is a - of Fig. 1.
A cross-sectional view taken along a line, a partial side view taken in the direction of the arrow in FIG. 4, and FIG. 5 a front view of the wedge member 24. 10... Spindle side center, 12... Center body,
14... Main shaft, 16... First shaft, 24... Wedge member, 28... Cam groove, 30... Pin, 36... Second
Axis, 40... actuator.

Claims

[Scope of utility model registration request]

a first shaft that is rotatably supported within a main shaft-side center body that holds a workpiece, and has a wedge member attached to one end thereof that bites into the surface of a hole inside the workpiece and transmits a driving torque to the workpiece; the center body; a second shaft that is allowed to be displaced in its own axial direction but prohibited from rotating around the axis, and that is disposed coaxially with the first shaft; the first shaft and the second shaft; a protrusion provided on either one of the first axis and the second axis;
A cam groove provided on the other side of the shaft to slidably receive the protrusion and formed to be inclined with respect to the axis, and an actuator operatively connected to the second shaft to drive the same shaft in the axial direction. A workpiece drive device that is characterized by the ability to move.