Stock sensing device

Details Stock sensing device Stock sensing device

1976-11-12

1977-09-20

Vlachos, Leonidas

Turning

Severing or cut-off

Interrelated means for tool infeed and circumrotation

82 25, 200 6141, 214 11, 408 7, B23B 1900, B23B 1302

Patent

active

040488799

ABSTRACT:
An apparatus utilizes fluid pressure measurements to sense sufficient chucking stock for a chuck with work gripping surfaces. A flexible seal cooperates with a workpiece at a location proximal to the chuck jaws to restrict flow of a pressurized fluid. Flow resistance varies at this location with the presence or absence of sufficient chucking stock. A pressure switch senses the resulting fluid backpressure which varies with the resistance of the flow path and generates a signal indicative of the presence or absence of sufficient chucking stock which is used to control functions of a machine tool.

REFERENCES:
patent: 2625061 (1953-01-01), Mansfield
patent: 3703112 (1972-11-01), Selby
patent: 3823628 (1974-07-01), Fortune

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