Clamping mechanism and sample processing equipment

The utility model provides a clamping mechanism and sample processing equipment, including base frame, steering subassembly and transmission subassembly, the steering subassembly includes first drive piece and output piece, the output piece is rotatingly connected with the base frame; the clamping assembly is rotatably arranged on the base frame and comprises a rotating structure and at least one pair of clamping pieces; the transmission assembly is suitable for being connected with the output piece and the rotating shaft. Under driving of the first driving piece, the output piece drives the transmission assembly to rotate, and the transmission assembly drives the rotating structure to rotate so as to drive the clamping assembly to rotate around the axis of the rotating structure. By arranging the steering assembly, the transmission assembly and the clamping assembly, the clamping assembly can rotate around the axis of the rotating structure within a certain range, so that the inclination angle of the test tu