▎ 摘　　要

NOVELTY - The utility model claims a new one can use for key copying machine of the clamp element, comprising clamp and base, wherein said bearing clamp base and clamp moving driving, said pedestal comprises upper slide platform lower slide platform and the upper platform can slide along sliding on each slide rail move left and right, each may along machine seat of slide rail move up in front and rear machine, wherein upper slide platform and between lower sliding platform also set with one layer composite material supporting slide piece, the composite material supporting slide piece as substrate comprises forming resin layer on upper surface of sliding and forming the graphene plane layer on resin layer of the upper slide platform connected with hand crank rocker, the clamp comprises mother key fixing groove and sub key fixing groove and female key fixing groove and sub key fixed slot groove outer side are set with one number key to prevent vertical direction displacement of the pressing device, the new utility model structure is simple, operation is convenient, increase of processing precision of key in a certain degree.