Patent ID: 9550262
Date: 2017-01-24
CPC Classifications: B23Q,B25B

Claim:
1. An electric clamp apparatus for gripping a workpiece by rotation of a clamp arm, comprising: a body; a drive unit including a drive source that is driven rotatably by an electric signal, the drive unit being attachable and detachable with respect to the body; a driving force transmission mechanism disposed in interior of the body, which transmits a rotary driving force of the drive unit to the clamp arm; and a connecting mechanism for switching a state of connection of the drive unit with respect to the body, wherein the drive unit is attachable and detachable with respect to the body by switching a state of connection of the drive unit through use of the connecting mechanism, wherein the connecting mechanism comprises: wherein the projection projects in a direction perpendicular to a direction of insertion of the drive unit with respect to the body, and wherein in a case where the drive unit is inserted in the interior of the body, the body and the drive unit are connected in such a state that restricts axial movement of the drive unit with respect to the body by engagement of the engagement unit with respect to the projection.