A cannula mount for a surgical system may include a body having an aperture to receive a portion of a cannula. The cannula mount may further include a pivotable clamping arm to engage the portion of the cannula received in the aperture. The clamping arm may include a cam follower surface. The cannula mount may further include a block moveable between a first position and a second position. The block may include a cam surface. The cam surface of the block may engage the cam follower surface of the clamping arm in the first position to actuate the clamping arm to a closed position in which the clamping arm engages the portion of the cannula received in the aperture. The clamping arm may be permitted to move to an open position in which the clamping arm does not engage the cannula when the block is in the second position.