Peck drilling tool

Details Peck drilling tool Peck drilling tool

1991-11-12

1993-06-01

Howell, Daniel W.

Cutting by use of rotating axially moving tool

Including means to cause tool to progressively vibrate...

408130, B23B 3910

Patent

active

052154165

ABSTRACT:
A drilling tool having a cutter for drilling a hole in a workpiece is disclosed. The tool has a special peck drilling mechanism that controls the advancement and retraction of a cutter such that the cutter is advanced into the workpiece a short distance and then withdrawn. The peck drilling mechanism enables this cycle of advancing and then withdrawing the cutter to be repeated until the cutter bore a hole in the workpiece to the desired depth. Cycling of the tool in this manner is controlled by a clutch assembly and a retract mechanism that are pneumatically connected to each other and to the feed piston such that the number of cycles of the tool and the total depth of penetration by the cutter into the workpiece can be controlled.

REFERENCES:
patent: 2079640 (1937-05-01), Vickers et al.
patent: 4453868 (1984-06-01), Winslow
patent: 5062745 (1991-11-01), Eckman

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