Power grid opening and closing manipulator

The invention discloses a power grid opening and closing mechanical arm which comprises a driven machine frame, a driving working assembly and a driven working assembly. The driving working assembly comprises a tower moving part rotationally connected with the driven rack, and the tower moving part is rotationally connected with a manipulator part; the manipulator part is attracted to the two sides of the interior of the tower moving part through electromagnetic iron sheets, and the manipulator part comprises two manipulator assemblies which are detached and replaced respectively; the tower moving part comprises a climbing crawler belt and a crawler belt connecting piece which are connected in sequence, and the two side faces of the crawler belt connecting piece are rotationally connected and attracted with the manipulator part respectively; the manipulator part is stabilized by the tower moving part when being sucked with the tower moving part, and the manipulator part is not influenced by vibration of the t