Method and apparatus for machining a workpiece

Details Method and apparatus for machining a workpiece Method and apparatus for machining a workpiece

1984-11-29

1986-07-15

Vlachos, Leonidas

Turning

Process of turning

82 40R, 76108A, 269272, B23B 100, B23B 3300

Patent

active

045999210

ABSTRACT:
A method and apparatus for machining on a rotary lathe (L) the bearing journal (14) of an elongate rotary drill bit body section or so-called lug (W). A workpiece holder (H) adapted to be removed from and positioned on the lathe (L) grips the bit body section (W) in a predetermined position. The holder (H) with the drill bit body section (W) is inserted loosely within an inclined pocket (O) on the lathe (L) defined by parallel upper and lower planar surfaces (74, 76). Positioning pins (86) on the lathe (L) engage the lower surface of the holder (H) and move the holder (H) against the upper planar surface (74) of the pocket (O) for the machining operation. After the machining operation on the bearing journal is completed, holder (H) is released by the positioning pins (86) and the holder (h) with the finished bit body section then removed from the lathe (L).

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