The method of one kind of clamping member when the outer shell of metal processing, metal processing by the use of the support frame in the housing, and the rigidity of the belt tightening by bolt and the metal support frame integrally connected to the housing, to improve the process systems. Lined with rubber retaining ring to be used can hold different orientations of the metal housing, increased system damping process. Since the above technical solution taken in the processing of a metal outer housing, significantly reduced chatter, improved cutting data, greatly reduce the processing tool tip chipping phenomenon, while greatly improving production efficiency decreases production cost.