Clamping mechanism

The utility model relates to the technical field of fixing devices, in particular to a clamping mechanism which comprises a base, a sliding rail, a driver, a static fixing plate and a movable fixing plate, the sliding rail is installed on the base, the static fixing plate is fixedly installed on the sliding rail, the movable fixing plate is installed on the sliding rail in a sliding mode, and the driver is installed on the base. The fixed fixing plate is provided with a sliding rail, the driver is used for driving the movable fixing plate to slide along the sliding rail, fixing blocks are arranged on the inner side of the fixed fixing plate and the inner side of the movable fixing plate, elastic layers are arranged on the inner sides of the fixing blocks, a fixing toothed plate is arranged on the upper portion of the base, and fixing insections are arranged on the inner side of the fixing toothed plate. The fixing plate can be driven by the driver to fix an object to be fixed, in the fixing process, the fixin