Drilling device for aluminum profile machining

The drilling device for aluminum profile machining comprises a bottom plate, a limiting mechanism is arranged at the upper end of the bottom plate, the limiting mechanism comprises a fixing frame fixedly arranged at the upper end of the bottom plate, a bearing is fixedly arranged at the upper end of the fixing frame, a supporting frame is fixedly arranged at the position, close to the rear side of the bearing, of the upper end of the fixing frame, and the supporting frame is fixedly connected with the bottom plate. A movable frame is movably arranged at one end of the supporting frame, a movable shaft is movably arranged in the movable frame, and a connecting rod is movably arranged on the inner side of the movable frame. According to the drilling device for aluminum profile machining, by rotating the rotary knob, the control frame moves along the threaded shaft, the connecting rod drives the movable frame to rotate with the movable shaft as the axis, and therefore the movable frame drives the clamping piece