Electricity: motive power systems – Positional servo systems – Program- or pattern-controlled systems
Patent
1979-05-23
1982-12-28
Witkowski, S. J.
Electricity: motive power systems
Positional servo systems
Program- or pattern-controlled systems
318592, G05B 1910
Patent
active
043664245
ABSTRACT:
Method of programming an electronic processor to control an apparatus in which a tool performs a series of discrete operations on a work piece. Initially a pattern is traced manually by a tracer to reflect working of the tool on the work piece with the processor in "Record" mode and input position and location signals are simultaneously generated and recorded to reflect the relative positions of the tracer and pattern. When programmed, the processor is set in "Playback" mode and output position and location signals are fed to apparatus to position tool on work piece reflecting pattern and tracer positions. For accurate positioning of tool and work piece, pattern is a template with tooling indexes that could be made on template in "Record" mode, if desired. In the "Playback" mode, a stylus is positioned coarsely by the processor in such a manner as to engage the tooling indexes which then causes self-centering action to bring the tool and tooling indexes into alignment for accurate locations of the tool relative to the work piece. The apparatus has free moving positioning structure that permits direct manual relative movement between the pattern and tracer data to establish spatial relationships with respect to Cartesian or polar coordinates system. Position signal generator used initially in the programming mode can be used as negative feedback system in the "Playback" mode to improve performance.
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Indyk Eugene S.
Witkowski S. J.
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