Longitudinal feed attachment for a boring bar

Details Longitudinal feed attachment for a boring bar Longitudinal feed attachment for a boring bar

1984-02-03

1986-03-04

Desmond, Eugene F.

Cutting by use of rotating axially moving tool

With work-engaging structure other than tool or tool-support

Movable relative to tool along tool-axis

B23B 3900

Patent

active

045738378

ABSTRACT:
A feed attachment for controlling the axial movement of a rotatable boring bar relative to a workpiece. The feed attachment includes a split clamp selectively secured to the boring bar for rotation with the boring bar about its axis. A collar is rotatably mounted concentrically with respect to the split clamp by a bearing which permits the collar to rotate about the axis independently of the boring bar and split clamp. A plate threadably engages the collar one one one side thereof and nonrotatably engages a workpiece on the other side thereof. The collar and plate are threadably engaged so that rotation of the collar moves the collar, base portion, and boring bar axially with respect to the plate and the workpiece. The plate is adaptable to nonrotatably engage workpieces of differing surface configurations.

REFERENCES:
patent: 1905819 (1933-04-01), Doyle
patent: 4090805 (1978-05-01), Grimsley

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