Fluid pressure drill feeding device

Details Fluid pressure drill feeding device Fluid pressure drill feeding device

1976-02-27

1978-07-25

Simpson, Othell M.

Cutting by use of rotating axially moving tool

Means to drive tool

Including means to move tool along tool-axis

92 10, 408234, B23B 3910, B23B 4716

Patent

active

041025938

ABSTRACT:
A drill is provided on which the chuck and motor are mounted on a support which moves vertically. Thus the motor rises and falls with the movement of the drill. Also the vertical movement of the drill chuck is controlled by an air cylinder which has mounted axially above it an hydraulic checking cylinder arranged so that checking occurs after an initial unchecked downward movement of the chuck. Automatic and manual operation are controlled by a five port valve in which a piston changing the air direction flow is moved by air blasts directed to each end of the channel in which the piston moves.

REFERENCES:
patent: 2189152 (1940-02-01), Procunier
patent: 2669136 (1954-02-01), Dodson
patent: 2692660 (1954-10-01), Good et al.
patent: 2876664 (1959-03-01), Gurney
patent: 2977826 (1961-04-01), Radford
patent: 3362266 (1968-01-01), Krafft

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