Automatic rotating-type turret device for work machinery

An automatic rotating turret device for work machinery in which a turret is rotatably provided on a turret stage, comprising:

• a clutch device for detachably locking the turret to an indexing position;
• a drive body that is advanced or retracted by a drive device in a direction that intersects the direction of an axis of rotation of the turret;
• an axial-direction slide body that is advanced or retracted in the direction of the rotation axis by the drive body being advanced or retracted in the direction intersects the direction of the rotation axis;
• the clutch device is engaged or disengaged by the axial-direction slide body being advanced or retracted;
• and
• a tapering action part for generating an expanding action caused by the movement of the drive body and pressingly sliding the axial-direction slide body against the turret stage,
• wherein the tapering action part of the drive body is configured on as to advance or retract between a support section provided to the turret stage and an opposing support section provided to the axial-direction slide body;
• and a movement of the tapering action part in a direction that intersects the direction of the rotation axis causes the opposing support section to be pressed in a direction away from the support section on a fixed side and the axial-direction slide body to which the opposing support section is provided to pressingly slide in the direction of the rotation axis,
• wherein the tapering action part for advancing and retreating between the support section of the turret stage and the opposing support section of the axial-direction slide body is formed so that at least the tapering action part has a wedge shape having a tapering outer surface whose width gradually expands along one direction in which the tapering action part advances or retract;
• moving the tapering action part in a direction in which the spacing between the support section and the tapering action part gradually increases causes the axial-direction slide body to pressingly slide in the direction of the rotation axis;
• and moving the tapering action part in a reverse direction in which the spacing dually narrows causes the axial-direction slide body to reversedly slide,
• wherein the tapering action part comprises a on-parallel pair of linear movement guide portions for slidably engaging with a support engaging portion provided to the support section and the opposing support section, respectively, and for integrally sliding in both directions;
• the tapering action part is formed as a wedge shape having the tapering outer surface formed by at least one of the linear movement guide portions, the linear movement guide portions being provided side-by-side in a non-parallel arrangement and at least the one of the linear movement guide portions being configured in an inclined state so that the spacing between the linear movement guide portions disposed side by side gradually increases;
• and driving the drive body causes the tapering action part comprising the non-parallel pair of linear movement guide portions to slide on each of the support engaging portions, whereby the expanding action is generated and the axial-direction slide body is caused to pressingly slide against the turret stage in the direction of the rotating axis.