Boots – shoes – and leggings
Patent
1979-03-08
1981-03-24
Ruggiero, Joseph F.
Boots, shoes, and leggings
21912434, 318568, 364477, G05B 1942
Patent
active
042584256
ABSTRACT:
This invention relates to controlled apparatus having a tool including a plurality of directions of movements with the directions interrelated, such as an arc welding unit having an electrode for contouring of similar work parts along a seam contour. The apparatus includes a logic system and memory such as a computer and a tracer to follow an original contoured curve or shape in space and generate a position-related signal. The computer includes a self-programming program in memory in which control program particulars of a contour are generated and introduced by an initial movement of the tracer over an original contour under a closed-loop position control program in a trace-record mode. During the trace-record mode the computer reads the necessary inputs and creates a set of data at points along the contour. The data sets are fitted together by a spline function (third-degree polynominal) to produce a close approximation of the weld seam in its multi-dimensions. Thereafter, such self-generated control program, in the absence of the tracer, directly moves the tool to reproduce the same contour for welding a part. The trace-record mode may be at a slow feed other than playback speed and the computer may complete data reduction and storage for each point. Various other modes of operation such as manual mode, a set-up mode, a test mode may also be provided. In the playback mode, the tracer may be used to detect out of tolerance parts.
REFERENCES:
patent: 3548173 (1970-12-01), Pascoe et al.
patent: 3857025 (1974-12-01), English et al.
patent: 3909600 (1975-09-01), Hohn
patent: 3943343 (1976-03-01), Irie
patent: 4086522 (1978-04-01), Engelberger et al.
patent: 4115684 (1978-09-01), Lindbom
patent: 4150326 (1979-04-01), Engelberger et al.
Bollinger John G.
Ramsey Paul W.
A. O. Smith Corporation
Ruggiero Joseph F.
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