| 摘要 |
The present invention relates to a robot arm. More specifically, the robot arm comprises: a base frame; a horizontal frame positioned above the base frame; a horizontal moving unit for horizontally moving the horizontal frame above the base frame; a horizontal rotating unit installed to rotate the horizontal frame above the base frame; a vertical frame arranged in one end of the horizontal frame; a vertical moving unit for vertically moving the vertical frame in one end of the horizontal frame; a gripping unit positioned on the bottom of the vertical frame to grip an object; and a gripping rotation unit installed to rotate the gripping unit on the bottom of the vertical frame. A central shaft passing through the center part of the vertical frame crosses at right angles to a central shaft passing through the center part of the horizontal frame. The present invention can easily grasp the position of the gripping unit by crossing the vertical frame having the gripping unit at right angles to the horizontal moving line of the horizontal frame and can easily grip the object by being moved at the position of the object. Also, the present invention can increase the supporting force of the horizontal frame by arranging the horizontal frame on the base frame to be rotated by the horizontal rotating unit having a bearing. |
