Air logic circuit for airfeed peck drill

Details Air logic circuit for airfeed peck drill Air logic circuit for airfeed peck drill

1987-10-30

1989-09-19

Arnold, Bruce Y.

Cutting by use of rotating axially moving tool

Including means to cause tool to progressively vibrate...

B23B 2722

Patent

active

048676179

ABSTRACT:
An improvement to an air logic circuit for an airfeed peck drill includes the insertion of a retract valve between the command valve and the air motor. This retract valve generates a required signal to only allow the drill quill to feed forward after it has been fully retracted

REFERENCES:
patent: 4123188 (1978-10-01), Deremo et al.

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