The invention discloses an operation mechanism capable of precisely transforming transfer angles of silicon chip groups in batches. The problems are solved that when an existing device rotates siliconchips in different groups, the rotation transformation angles of the square flake-like silicon chips are inconsistent, and during primary installation and debugging, a plastic hose is easy to break.A groove switch is arranged on a rotary hollow shaft connected with a sucking disc, so that the rotation starting position and the rotation ending position of the rotary hollow shaft are precisely controlled, and it is ensured that the rotation angles, changed in batches, of the silicon chip groups are consistent. A limiting swing block mechanism is arranged on a driven wheel shaft at the closed-loop tail end of a synchronous conveying belt, when the reciprocating swing angle of a servo motor exceeds 180 degrees, a power supply of the servo motor is turned off, and the situation that the plastic hose is broken is avoided. The silicon chips with the angles adjusted in batches are high in consistency after the transfer angles are adjusted, and the precision error is small.