The invention provides a mechanical arm mechanism and a
robot. The mechanical arm mechanism comprises a main body, a sucking
disc assembly, a connecting plate and a fork body
assembly, wherein the sucking
disc assembly is arranged on the main body, the connecting plate is arranged on the main body, and the connecting plate, the sucking
disc assembly are located on the two sides of the main body respectively, and the fork body
assembly is arranged on the connecting plate; and a fork body in the fork body
assembly can do
reciprocating motion between an initial position and a working position. According to the mechanical arm and the
robot, one side face is only needed, namely a material fixing can be completed; the mechanical arm and the
robot are suitable for a top cover working environmentand or a
working environment with blocking on two sides above a material target position, moreover, the state of the top of the material is not required, so that the application range is greatly increased; and the fork body can be controlled to extend forwards while the material is fixed, the mode of bottom holding is adopted, so that the materials are prevented from slipping off, safety accidentsand property losses caused by the falling of the materials are avoided, the material transportation process is
safer and more reliable, the fork body retracts to the initial state after carrying is completed, so that the storage space is saved.