Electric heating – Metal heating – Cutting or disintegrating
Patent
1981-09-14
1983-12-13
Reynolds, B. A.
Electric heating
Metal heating
Cutting or disintegrating
B23P 108
Patent
active
044206712
ABSTRACT:
An adjustable and controllable electrode wire support and guide mechanism for traveling wire EDM apparatus wherein an electrode wire, longitudinally fed, is stretched between a pair of support and guide members, and wherein at least one of the support and guide members is in the form of a helically grooved cylindrical member directly driven by a servo-motor. The helical groove defines guiding surfaces for the electrode wire which is in engagement with opposite sidewalls of the groove and, by rotating the helically grooved support and guide member by the servo-motor, the electrode wire is caused to take a predetermined inclination relative to the workpiece. The invention permits to reduce the number of moving parts required for inclining an electrode wire to two elements only which provide a precise guiding for the electrode wire, which considerably reduce play, backlash and other errors due to geometric imperfections of the conventional slides and cross-slides normally used for varying the inclination of wire electrodes in traveling wire EDM apparatus.
REFERENCES:
patent: 3946189 (1976-03-01), Pomella et al.
patent: 4029929 (1977-06-01), Rietveld
patent: 4243864 (1981-06-01), Vieau et al.
patent: 4363949 (1982-12-01), Pfau et al.
Ateliers des Charmilles S.A.
Lateef M. M.
Reynolds B. A.
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