Robot for grabbing cylindrical workpiece

The invention discloses a robot for grabbing cylindrical workpieces, and relates to the technical field of carrying devices.The robot comprises a connecting frame, a stand column is fixed to the connecting frame, a plurality of guide sleeve plates are installed on the side wall of the stand column, an extension plate is installed on each guide sleeve plate in a sliding mode, and a wedge face I is formed in each extension plate; the stand column is in threaded connection with a threaded sleeve, an abutting and pushing mechanism is connected between the threaded sleeve and the guide sleeve plate, the threaded sleeve is connected and provided with a sleeve ring through a bearing, the side wall of the sleeve ring is fixedly provided with an extending frame, and the extending frame is provided with an axial clamping mechanism; according to the lifting device, the arranged threaded sleeve rotates to vertically move relative to the stand column, so that the threaded sleeve pushes the longitudinal sliding block in an