Apparatus for manufacturing a master rack

Details Apparatus for manufacturing a master rack Apparatus for manufacturing a master rack

1986-05-19

1987-10-27

Paschall, M. H.

Electric heating

Metal heating

Cutting or disintegrating

219691, B23H 100, B23H 726

Patent

active

047031450

ABSTRACT:
Apparatus for manufacturing a master rack which in turn is employed in the manufacturing of forging dies to form nonuniform tooth configuartion, which includes an EDM machine having upper and lower platens and mechanism for raising and lowering the upper platen, rack blank support mechanism arranged for longitudinal movement in the rack blank axis and mounted on the lower platen, an electrode in the form of a facsimile of a helical pinion rotatably mounted in bracket attached to the upper platen, mechanism for rotating the electrode intermittently, mechanism causing axial movement of the rack blank past the electrode in accordance with the rotational movement of the electrode, a cam coordinating the position of the electrode in relation to the axis of the rack blank, and a cam follower attached to the bracket and contacting the last-named cam.

REFERENCES:
patent: 3194938 (1965-07-01), Smith
patent: 3564190 (1971-02-01), Kandajan et al.
patent: 3840718 (1974-10-01), Myers
patent: 4016774 (1977-04-01), Baker et al.
patent: 4189955 (1980-02-01), Bishop
patent: 4247748 (1981-01-01), Sato et al.
patent: 4263817 (1981-04-01), Taig
patent: 4382389 (1983-05-01), Namiki et al.

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