The utility model discloses an electro-hydraulic
servo numerical control bending
machine with a built-in oil cylinder, and belongs to the technical field of bending machines. An electro-hydraulic
servo numerical control bending
machine with built-in oil cylinders comprises a
machine frame, the machine frame comprises a
workbench, a sliding block is arranged at the top of the machine frame, the oil cylinders are arranged on the two sides of the sliding block and connected with the machine frame through bolts, a hydraulic driving
assembly is arranged at one end of each oil cylinder, guide rails are arranged on the two sides of the bottom of the sliding block, and the guide rails are connected with the
workbench through bolts. The sliding block is slidably connected with the rack through a sliding rail, and a pressing plate is arranged at the bottom of the sliding block. In order to solve the problems that in the
stamping process of an upper die of the bending machine, collision and friction occur between the connecting position of a cutter
handle and a pressing plate structure under the influence of
impact pressure, the cutter
handle and the inner side of a pressing plate deform after a long time, and the follow-up replacement and use precision of the die is affected, a rubber line is installed in a line groove; in this way, the corner area can be protected, and serious abrasion deformation between the chamfering area of the inner pressing block and the upper die is avoided.