Centering stick mechanism

The utility model relates to the technical field of crystal bar cutting, in particular to a centering bar sticking mechanism which comprises a base, a horizontal sliding table and a clamping device, the horizontal sliding table is fixed at the left end of the base through a bolt, the clamping device is arranged at the right end of the base, the sliding device is arranged on a fixing support, and the clamping device is arranged on the fixing support. The bar sticking tool is fixed to the sliding device and can horizontally move relative to the fixing support through the sliding device, an adjusting sliding rail is arranged on the clamping device, two sets of clamping arms are symmetrically arranged on the adjusting sliding rail in a sliding mode, and adjusting devices are arranged on the clamping arms. The clamping device disclosed by the utility model has an adjusting function, can be compatible with the sizes and specifications of different crystal bars, and is high in universality; the crystal bar is adjust