ApplicationNo. 06/687520 filed on 12/28/1984
US Classes:409/211, And angular adjustment408/111, Including means to move tool408/137, Screw coaxial with tool408/236, Including pivotally mounted tool-carrier408/88, Tool having shiftable tool-axis409/216Compound angular adjustment
ExaminersPrimary: Yost, Frank T.
Assistant: Phan, Hien H.
Attorney, Agent or Firm
International ClassB23Q 9/00 (20060101)
AbstractThe present invention provides a drilling apparatus (10) having a drilling member (20) that is rotatable about an axis (45) for drilling a bore in a workpiece (12). The drilling apparatus (10) includes a spindle (22) which drives the drilling member (20) and advances it towards and against the workpiece surface (32). The gimbal member (18) normalizes the drilling member (20) as the bore is drilled. The gimbal member (18) guides the drilling member (20) toward a drilling point (48) which is positioned on a datum plane (44) that is substantially tangent to the surface of the workpiece (32). As the bore is drilled, the guiding member (18) guides the drilling member (20) so that the drilling axis (45) remains substantially normal to the drilling point (48) at all times while the bore is drilled.