True triaxial sample preparation device for soft broken rock core

A true triaxial sample preparation device for a weak broken rock core belongs to the technical field of rock mass engineering, and comprises a numerical control wire cutting machine tool, the numerical control wire cutting machine tool is detachably connected with a rock core clamping assembly through a fixing assembly, and the rock core clamping assembly comprises end part frames which are oppositely arranged; the middle part of each end part framework is connected with an end part pressure-bearing column, two or four uniformly arranged side surface pressure-bearing columns are connected between the two end part frameworks, the opposite surfaces of the two end part pressure-bearing columns are connected with end part surrounding plates through fastening bolt groups, and the inner surfaces of the side surface pressure-bearing columns are connected with side surface surrounding plates through fastening bolt groups. According to the utility model, the clamping effect on a core to be cut is good, the fixing stab