Metal working – Means to assemble or disassemble – Means to assemble electrical device
Patent
1998-01-30
1999-10-05
Echols, P. W.
Metal working
Means to assemble or disassemble
Means to assemble electrical device
29 33Q, B23P 1900
Patent
active
059605332
ABSTRACT:
Elongated thin strip stock is blanked to form interlocking laminas for electric motor or generator rotors or stators at successive blanking stations. At a final assembly station the laminas are stacked and pressed into interlocking relationship. In response to an operator input a predetermined number of reversals, or half turns about the stack axis of the previously stacked lamina are provided in order to compensate for nonuniform strip thickness to obtain a rotor or stator of substantially uniform height. Alternatively the thickness of the strip stock is gauged at transversely spaced points on the strip to determine cross feed thickness variation in the strip whereupon the stacked laminas are automatically provided with a number of reversals about the stack axis in response to a thickness differential that would result in a parallelism error in the stack that exceeds a predetermined amount. Rotor conductor slots are formed in the stacked laminas and are skewed to the stack axis by providing arcuate indexing of each lamina relative to the next preceding lamina in the stack by an arcuate increment that is automatically determined in response to operator entered inputs relative to the stack height, the skew angle, nominal lamina thickness and skew direction.
REFERENCES:
patent: 412610 (1889-10-01), Hannay
patent: 2562254 (1951-07-01), Andrus
patent: 3110831 (1963-11-01), Zimmerle
patent: 3202851 (1965-08-01), Zimmerle et al.
patent: 3203077 (1965-08-01), Zimmerle
patent: 3457445 (1969-07-01), Dochterman
patent: 3581389 (1971-06-01), Mori et al.
patent: 3590208 (1971-06-01), Martini
patent: 3652889 (1972-03-01), Reece et al.
patent: 3783318 (1974-01-01), Widstrand
patent: 3802068 (1974-04-01), Scott
patent: 3823460 (1974-07-01), Bergmann
patent: 4110895 (1978-09-01), Mitsui
patent: 4160182 (1979-07-01), Mitsui
patent: 4162734 (1979-07-01), Dangelmeier et al.
patent: 4204314 (1980-05-01), Workman
patent: 4272579 (1981-06-01), Mitsui
patent: 4383356 (1983-05-01), Fichtner
patent: 4445272 (1984-05-01), Bruhn et al.
patent: 4457664 (1984-07-01), Judell et al.
patent: 4524507 (1985-06-01), Hara et al.
patent: 4619028 (1986-10-01), Neuenschwander
patent: 4738020 (1988-04-01), Neuenschwander
patent: 5087849 (1992-02-01), Neuenschwander
patent: 5123155 (1992-06-01), Neuenschwander
patent: 5349740 (1994-09-01), Neuenschwander
patent: 5359763 (1994-11-01), Neuenschwander
patent: 5373622 (1994-12-01), Neuenschwander
patent: 5377115 (1994-12-01), Neuenschwander
patent: 5604678 (1997-02-01), Neuenschwander
Computer Numerical Control of Production of Rotor And Stator Lamination Segments For Large Electrical Generators And Motors, Arthur C. Silverton, Metalworking '82.
Die Design Handbook, American Society of Tool And Manufacturing Engineers, McGraw-Hill, pp. 9-11; 11-21 16-15.
Echols P. W.
L. H. Carbide Corporation
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