Robotic rod benders and related mechanical and motor housings

A motor housing for a robotic rod bender comprising:

• a motor;
• a spline shaft;
• an actuated elevator assembly comprising:
• a mid-plate;
• a movable plate below the mid-plate, wherein the motor is connected to the moveable plate, and wherein the spline shaft extends from the moveable plate;
• a cam assembly comprising a cam, a roller, and a cam engagement bar, wherein the roller is connected to the movable plate, wherein the cam engagement bar is connected to a top plate, wherein the roller is configured to move in conjunction with the movable plate, wherein the roller is further configured to contact and rotate the cam, thereby causing the cam to engage with and lock onto the cam engagement bar, and wherein the roller is further configured to continue to move in a straight line along a longitudinal axis, and wherein the roller facilitates automatic piercing of a drape and engaging the spline shaft through the mid-plate,
• at least one pair of rails positioned in alignment with one another, wherein the rails are disposed along the longitudinal axis of the motor housing, wherein the rails are configured to facilitate movement of the moveable plate in an upward and a downward direction;
• and
• an actuator removably attached to the movable plate, wherein activation of the actuator is configured to lift the movable plate upward along the longitudinal axis.