▎ 摘　　要

NOVELTY - The utility model claims a clamp for preparing graphene, its structure comprises cylinder, bolt, pipe, a piston, a supporting plate, a piston rod, a sliding block, a trimmer, a clamping plate, a fixing block, a bottom plate, a slide strip, the oil cylinder is set on the bottom; the air pipe is connection with the adapter, the support plate is provided, the piston is fixedly connected with the cylinder, the piston rod is movably connected with the cylinder, the shell is fixedly connected with the sliding block, the scale post is connected with the shell. the knob is set on the scale post, the button is equipped with spring, the trimmer body fixedly connected with scale columns, said fixing block is set on the soleplate, the slide is connected with the bottom plate. The utility model solves the problem that the current clamp cannot clamp the will generate deviation, artificial cannot adjusted.