Large CNC vacuum chuck plane machining fixing device

The utility model discloses a large CNC (computer numerical control) vacuum sucker plane machining fixing device, which belongs to the field of numerical control machining and comprises a numerical control machining platform, a plurality of sucker plane blocks are arranged on the numerical control machining platform, suction holes are arranged on the sucker plane blocks, strip-shaped grooves are arranged among the sucker plane blocks, and the sucker plane blocks are arranged in the strip-shaped grooves. A gas controller is arranged on one side of the numerical control machining platform, a gas suction inlet pipe is connected to one side of the gas controller, machining chippings on the numerical control machining platform and cooling liquid on a strip-shaped groove and a suction cup plane block can be blown away through movable air blowing, and finally the chippings and the cooling liquid are blown into a collecting groove in a collecting assembly. The chippings and the cooling liquid falling on the collectin