Manipulator and gripping device

According to the mechanical arm and the grabbing device, two swing parts are arranged on the two sides of a mounting part respectively, two clamping parts are arranged on the two sides of the mounting part respectively, and the two clamping parts correspond to the two swing parts one to one and are movably connected with the two swing parts respectively, so that the corresponding clamping parts can be driven to rotate when the swing parts rotate; the two clamping parts are each provided with a clamping body of a cylindrical structure, the clamping bodies can rotate relative to the clamping parts, transmission assemblies are arranged between the installation part and the clamping bodies installed on the two clamping parts so that the clamping bodies can rotate along with rotation of the clamping parts, and the driving part is arranged between the two swing parts. The driving part is suitable for simultaneously driving the two swinging parts to rotate relative to the mounting part, and the rotating directions o