Fixing and clamping device for one-way valve machining

The utility model relates to the technical field of one-way valves. The utility model discloses a fixed clamping device for processing a one-way valve, which comprises a frame body, an adjusting assembly is arranged in an inner cavity of the frame body, a case is arranged at the top of the adjusting assembly, a clamping assembly is arranged in an inner cavity of the case, support plates are bolted on two sides of the top of the case, a top plate is bolted on the top of each support plate, and a clamping assembly is arranged on the top of each top plate. A dust collection box and a fan are sequentially bolted to the top of the top plate from left to right, an air outlet of the fan communicates with an air outlet pipe, an air inlet of the fan communicates with an air inlet pipe, the left end of the air inlet pipe communicates with the right side of the dust collection box, and the left side of the dust collection box communicates with an air suction pipe; through cooperation of the dust collecting box, the drau