Clamp used for steel cable machining device

The utility model discloses a clamp for a steel cable machining device, and relates to the technical field of clamps. The clamp used by the steel cable machining device comprises two mounting seats, the outer surfaces of the two mounting seats are both rotationally connected with fixing rollers, and through the arranged clamping plates, annular sliding blocks, mounting plates, hydraulic cylinders and other structures, the hydraulic cylinders drive one of the clamping plates to move, so that the distance between the two clamping plates can be changed; the clamping plate can be driven to clamp and fix steel cables with different diameters, when the steel cables are wound, the steel cables can drive the annular sliding block to rotate in the winding process through the arranged annular sliding block, so that the friction force between the steel cables and the clamping plate is reduced, normal winding of the steel cables is not affected under the condition that the fixing effect on the steel cables is guaranteed,