Tool changing – Process
Patent
1995-04-19
1998-06-02
Briggs, William R.
Tool changing
Process
29 26A, 408 1, 408 46, 408 50, 408 72R, 409164, 409189, 409224, 483 16, 483 30, B23Q 3157, B23B 3500, B23B 4728
Patent
active
057591407
ABSTRACT:
A crankshaft is mounted in a fixture which rotates the crankshaft about its longitudinal axis and which tilts the crankshaft about a horizontal axis to allow machining of holes such as oil holes at various rotational positions and at various tilt angles to the longitudinal axis. Preferably, a cutting tool moves along a horizontal plunging axis Z to machine the depth of the hole and moves along a horizontal X axis to machine holes on or offset from the longitudinal axis. The cutting tool may also be shifted vertically along a Y-axis. Preferably, a pair of crankshafts are mounted side-by-side in the fixture to machine two crankshafts simultaneously. The fixture is mounted for tilting by trunnions. The pair of crankshafts are spun about the longitudinal axes by a motor carried on the tiltable fixture. An automatic tool changer and loading apparatus store cutting tools and associated guide bushings for the cutting tools.
REFERENCES:
patent: 3806691 (1974-04-01), Roach
patent: 4637107 (1987-01-01), Romen
patent: 4655652 (1987-04-01), Schissler
patent: 5023983 (1991-06-01), Winkler et al.
patent: 5172464 (1992-12-01), Kitamura et al.
patent: 5391850 (1995-02-01), Mueller
Briggs William R.
Ingersoll CM Systems Inc.
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