Non-standard mechanical part machining device

The invention discloses a non-standard mechanical part machining device. The non-standard mechanical part machining device mainly comprises a chassis, a clamping mechanism and a driving mechanism; a sliding groove is formed in the top of the chassis, the clamping mechanism is arranged on the top of the chassis, the clamping mechanism at least comprises three first clamping parts with of completelyconsistent structures, the multiple groups of first clamping parts are arranged in a manner of encircling a ring-shaped structure, each first clamping part comprises a first connecting part, a secondconnecting part and an adjusting screw, each second connecting part comprises a frame, a supporting rod and an elastic part, the other side of each frame is evenly provided with through holes, one ends of the supporting rods penetrate through the through holes to be connected with the elastic parts, the elastic parts are arranged in the frame, and the driving mechanism is connected with one sideof the first connecting par