Feeding arm for machining

The utility model discloses a feeding arm for machining, which is characterized in that the top end of a main arm is provided with a support arm, the rear side of the top end of a turntable is provided with a first hydraulic oil cylinder, the top end of the first hydraulic oil cylinder is movably connected with the main arm, the rear side of the main arm is provided with a second hydraulic oil cylinder, and the top end of the second hydraulic oil cylinder is movably connected with the support arm; a fixing box is arranged at the rear end of the supporting arm, mounting grooves are formed in the upper side and the lower side of the interior of the fixing box, third hydraulic oil cylinders are arranged on the inner walls of the front sides of the mounting grooves, the outer walls of the movable ends of the third hydraulic oil cylinders are sleeved with sleeve rods, and clamping jaws and movable rods are arranged in the mounting grooves; one end of the movable rod is rotationally connected with the sleeve rod, a