APPARATUS FOR FORMING A HOLLOW

摘要

PURPOSE: A hollow machining apparatus is provided to naturally discharge processed chips to the bottom by machining a hollow shape to workpieces while vertically moving a moving frame. CONSTITUTION: A hollow machining apparatus comprises a main frame(100), a moving frame(200), a driving unit, and a boring unit(400). A rail(R1) is vertically formed in the main frame and workpieces are mounted on one surface of the moving frame. The moving frame is mounted on the main frame and vertically moves along the rail. The driving unit vertically moves the moving frame. The bottom of the boring unit is vertically fixed at the bottom of the main frame and a bit(420) is rotatably mounted on the top of the boring unit. The boring unit is arranged at the bottom of the moving frame. When the moving frame ascends, the boring unit machines the hollow shape to the workpieces.