The invention discloses a mechanical arm mechanism for an
industrial robot, and relates to the technical field of industrial robots. The mechanical arm mechanism for the
industrial robot comprises a sliding plate, a motor, an output shaft, a
crank, a first connecting rod, a sliding block, a rail, a second connecting rod, a rocker, fingers and a spring. The motor is arranged below the sliding plate. The motor is connected with the output shaft. The output shaft is connected with the
crank. The
crank is connected with the first connecting rod. The first connecting rod is connected with the sliding block. The rail is arranged on the sliding plate. The sliding block is slidably connected with the rail. The sliding block is connected with the second connecting rod. The second connecting rod is hinged to the rocker. The rocker is hinged to the two fingers. The spring is connected between the two fingers. According to the mechanical arm mechanism for the
industrial robot, a
finger structure and a transmission structure are simple, the mechanical arm mechanism for the industrial
robot is not prone breaking down and convenient to maintain, normal carrying is ensured, and the mechanical arm mechanism for the industrial
robot has the advantages of being simple in structure, reasonable in arrangement, low in manufacture cost and the like.