Electricity: motive power systems – Positional servo systems – Program- or pattern-controlled systems
Patent
1973-12-06
1976-01-06
Dobeck, B.
Electricity: motive power systems
Positional servo systems
Program- or pattern-controlled systems
G05B 1924
Patent
active
039315614
ABSTRACT:
A milling or grinding machine for shaping a workpiece is disclosed wherein a shaping tool is displaced relative to a rotatable workpiece in accordance with coded displacement values of a series of signals stored on a perforated tape. The signals are extracted from the tape serially and are translated into command signals, which are applied to a stepping motor for imparting displacement to means supporting the shaping tool. The stored signals are extracted from the tape in response to output pulses derived from a frequency divider network, the input of which is connected to a pulse generator. The pulse generator is so coupled to means for rotating the workpiece as to provide a plurality of pulses for each predetermined angular displacement of the workpiece. The frequency divider network includes a plurality of successively connected frequency divider devices, each of which is manually settable to provide output pulses equal in number to the number of pulses applied to the input of the selected frequency divider device divided by the respective divider ratio to which the selected divider device is set. By adjusting the divider ratios set at the respective divider devices, the angular displacement of the workpiece is correlated with the displacement of the shaping tool in a predetermined manner.
REFERENCES:
patent: 3015806 (1962-01-01), Wang et al.
patent: 3184663 (1965-05-01), Mergler
patent: 3191111 (1965-06-01), Greene
patent: 3541417 (1970-11-01), Frank, Jr.
patent: 3698267 (1972-10-01), Cutler
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