Workpiece ejector

Details Workpiece ejector Workpiece ejector

1996-01-22

1998-02-10

Bishop, Steven C.

Turning

Lathe

With work feeder or remover

82152, 279156, 408 68, B23B 1500

Patent

active

057157359

ABSTRACT:
A workpiece ejector has an air actuator mounted within a lathe spindle for rotation therewith. The ejector actuator is controlled to extend its piston and piston rod to eject a workpiece from the lathe collet. A removable ejector nosepiece may be connected to the piston rod for movement into engagement with a workpiece held in the collet mechanism. Air under pressure is supplied to the air actuator at a first pressure to continuously press the nosepiece against the workpiece to seal the spindle assembly from contaminants, and at a second pressure to eject the workpiece. Controls are provide to sense whether a workpiece was properly ejected and to interrupt lathe operations if a workpiece was not properly ejected.

REFERENCES:
patent: 1446305 (1923-02-01), Howe
patent: 1964937 (1934-07-01), Dumser et al.
patent: 2109600 (1938-03-01), Vanderbeek
patent: 3025646 (1962-03-01), Thompson
patent: 3118345 (1964-01-01), Bullard, III et al.
patent: 3174165 (1965-03-01), Atherholt
patent: 3927583 (1975-12-01), Parsons et al.
patent: 4604009 (1986-08-01), Tennerstedt
Unnumbered drawing showing part ejector sold by R & D Tool & Die Inc., Itaska, Illinois 60143 more than one year prior to Jan. 22, 1996.
See accompanying Information Disclosure Statement regarding sale of machine including ejector in accordance with this invention.

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