Electricity: motive power systems – Positional servo systems – Program- or pattern-controlled systems
Patent
1975-08-27
1977-08-23
Dobeck, B.
Electricity: motive power systems
Positional servo systems
Program- or pattern-controlled systems
318578, 318 39, 90 135, G05B 1936
Patent
active
040442896
ABSTRACT:
Apparatus and method for cycling elements of a tracer mechanism-controlled machine tool in a trace cut along a selected tracing plane defined by first and second mutually perpendicular axes under control of two power control means respective to the selected axes, and at the end of the trace cut, selecting a pick plane for pick movement, which pick plane includes one of the previously-selected axes and a third axis which is normal to the first and second axes, accomplishing the pick movement under control of two power control means respective to the axes which define the pick plane, and after distance measuring means has indicated completion of a predetermined travel along the third axis, to terminate the pick movement and again select the first two selected axes for a trace cut in a direction opposite to the first trace cut. Machine tool elements are moved by motor means responsive to the power control means. During the trace cut and pick movements, the motors are always under the concurrent control of two stylus-responsive power control means which are respective to tracer stylus deflection in the axes that define the respective plane. A substantially constant cutting speed is therby produced both during the trace cut and during the pick movement.
REFERENCES:
patent: 2492731 (1949-12-01), Branson
patent: 2511956 (1950-06-01), Wetzel
patent: 2828673 (1958-04-01), Campbell
patent: 2843024 (1958-06-01), Armitage
patent: 2946265 (1960-06-01), Fuldner
patent: 3121370 (1964-02-01), Larsen
patent: 3292495 (1966-12-01), Hill
patent: 3582749 (1971-06-01), Wenzel
patent: 3707662 (1972-12-01), Hoffman
patent: 3976928 (1976-08-01), Wenzel
Stavros Franklin O.
Wenzel Robert H.
Dobeck B.
Mon Donald D.
Textron Inc.
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