The invention discloses a device for processing parts, which comprises a mounting platform and a supporting base, a supporting plate is arranged on the supporting base, a driving motor is arranged on the supporting plate, a rotating assembly is connected to the driving motor, and a rotating assembly is arranged on the mounting platform. There is a first turntable, the first turntable is provided with a first clamping part, the installation platform is provided with a second turntable, and a second stopper is arranged on the second turntable. The invention can quickly complete the processing of a large number of mechanical parts, automatically add sealing gaskets to the mechanical parts, improve the work efficiency, reduce the cost, be automatic and efficient, and the quality of the processed mechanical parts is high, reducing the mixing of defective products The utility model has the advantages of simple structure, strong practicability, low manufacturing cost and remarkable economic benefit.