| 摘要 |
A machine is provided for making holes in the legs of a structural angle oriented lengthwise along the X-axis of a mutually orthogonal X, Y, and Z-axis coordinate system. The machine includes a first or main frame, a second frame moveable along the Y-axis relative to the first frame, and a carriage moveable along the Z-axis relative to the second frame. A punch is mounted on the second frame for punching a first hole in the first leg of the angle. A drill is mounted on the carriage for drilling a second hole in the second leg of the angle. The punch has a punch operating axis along which the punch moves longitudinally to punch the first hole and which is parallel to the Z-axis. The drill has a drill feed operation axis along which the drill moves longitudinally to drill the second hole and which is parallel to the Y-axis. The drill and the punch are oriented with the drill feed operation axis and the punch operation axis together defining a common plane.
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