Apparatus for obtaining relative orbital movement in electrical

Details Apparatus for obtaining relative orbital movement in electrical Apparatus for obtaining relative orbital movement in electrical

1975-12-08

1978-02-28

Wyche, Benjamin W.

Machine element or mechanism

Mechanical movements

Rotary to gyratory

219 69V, 74 55, F16H 3310

Patent

active

040758974

ABSTRACT:
A pair of orthogonal drive shafts carry cams which are coupled to a platform for orbital movement of the platform. The platform supports a workpiece below an electrode in an electrical discharge machining operation. The cams are cylindrical segments which extend axially at an acute angle to their respective drive shafts so as to present a changing throw along the axial extent of the cams and the coupling means is selectively adjustable along the axial extent of the cams to enable selection of the amplitude of the orbit. In another embodiment, a single drive shaft carries cams each having a throw extending perpendicular to the drive shaft and a further cam having a throw parallel to the drive shaft. The cams are coupled to a platform for orbital movement of the platform and have changing throws in the respective directions of the throws to enable selection of the amplitude of the orbit.

REFERENCES:
patent: 883827 (1908-04-01), Rathbun
patent: 2027926 (1936-01-01), Meyers et al.
patent: 2991657 (1961-07-01), Schatz
patent: 2995826 (1961-08-01), Brault
patent: 3160744 (1964-12-01), Weiss
patent: 3663785 (1972-05-01), Hausermann
patent: 3671705 (1972-06-01), Raznitsyn
patent: 3703834 (1972-11-01), Beezer

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