Graphite chuck for polycrystalline reduction furnace production

The utility model provides a graphite chuck for polycrystalline reduction furnace production, and belongs to the technical field of graphite chucks. The graphite chuck for polycrystalline reduction furnace production comprises the supporting assembly and the clamping assembly, when a silicon core needs to be clamped, a user can firstly enable the silicon core to penetrate through two containing holes and place the silicon core between clamping blocks, the clamping blocks are all arranged on the surface of the silicon core in a lap joint mode, then the user can rotate a two-way screw rod, clamping plates can be driven to be close to each other, and the silicon core is clamped. Due to friction between the clamping blocks and the surface of the silicon core, the supporting blocks can continuously stretch out of the containing holes, the clamping is tighter when the supporting blocks stretch out of the containing holes, the convenience and stability of silicon core clamping can be improved, then the silicon core