Biochemical stirring anti-collision system and control method

The invention discloses a biochemical stirring anti-collision system and a control method. The biochemical stirring anti-collision system comprises a stirring mounting plate, a rotating shaft, a driving assembly, a stirring assemblies, a reaction disc, a reaction disc motion positioning assembly and a stirring positioning anti-collision assembly; the stirring mounting plate is provided with positioning holes; at least three stirring assemblies are rotationally connected with the stirring mounting plate and are uniformly distributed in the circumferential direction of the rotating shaft, each positioning hole is positioned between two adjacent stirring assemblies, an anti-collision rod is positioned in the orthographic projection direction of the positioning holes and is in clearance fit with the stirring mounting plate through the positioning holes, and a travel switch is fixedly connected with the anti-collision rod and is positioned at the side close to the positioning holes. When aninstrument is abnormal o